Add migration tracking with smart error detection

- Add _schema_migrations table to track applied migrations
- Each migration has a unique name and checksum
- Migrations are only run once (tracked by name)
- Checksum changes are detected and logged as warnings
- Smart error detection distinguishes "already applied" errors from real failures
- Real errors now fail hard with clear error messages
- Safe PostgreSQL error codes (42P07, 42701, 42710, 42P16) are recognized
- Fix semver migration to generate UUID for id column

CHANGELOG.md

@@ -44,7 +44,20 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - Teams navigation link in header (authenticated users only)
 - Updated seed data to create a "Demo Team" and assign all seed projects to it
 - Added TypeScript types and API client functions for teams
+- Access management now shows team-based permissions alongside explicit permissions
+  - Team-based access displayed as read-only with "Source" column indicating origin
+  - Team members with access show team slug and role
 - Added integration tests for team CRUD, membership, and project operations
+- Redesigned teams portal with modern card-based layout
+  - Card grid view with team avatar, name, slug, role badge, and stats
+  - Stats bar showing total teams, owned teams, and total projects
+  - Search functionality for filtering teams (appears when >3 teams)
+  - Empty states for no teams and no search results
+- Added user autocomplete component for team member invitations
+  - `GET /api/v1/users/search` endpoint for username prefix search
+  - Dropdown shows matching users as you type
+  - Keyboard navigation support (arrow keys, enter, escape)
+  - Debounced search to reduce API calls
 - Added unit tests for TeamAuthorizationService
 - Added `ORCHARD_ADMIN_PASSWORD` environment variable to configure initial admin password (#87)
   - When set, admin user is created with the specified password (no password change required)
@@ -92,6 +105,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added pre-test stage reset to ensure known environment state before integration tests (#54)
 - Upload endpoint now accepts optional `ensure` file parameter for declaring dependencies
 - Updated upload API documentation with ensure file format and examples
+- Converted teams list and team projects to use DataTable component for consistent styling
+- Centered team members and team settings page content
+- Added orchard logo icon and dot separator to footer
+
+### Fixed
+- Fixed dark theme styling for team pages - modals, forms, and dropdowns now use correct theme variables
+- Fixed UserAutocomplete and TeamSelector dropdown backgrounds for dark theme
 
 ## [0.5.1] - 2026-01-23
 ### Changed

backend/app/database.py

@@ -1,10 +1,11 @@
 from sqlalchemy import create_engine, text, event
 from sqlalchemy.orm import sessionmaker, Session
 from sqlalchemy.pool import QueuePool
-from typing import Generator
+from typing import Generator, NamedTuple
 from contextlib import contextmanager
 import logging
 import time
+import hashlib
 
 from .config import get_settings
 from .models import Base
@@ -12,6 +13,21 @@ from .models import Base
 settings = get_settings()
 logger = logging.getLogger(__name__)
 
+
+class Migration(NamedTuple):
+    """A database migration with a unique name and SQL to execute."""
+    name: str
+    sql: str
+
+
+# PostgreSQL error codes that indicate "already exists" - safe to skip
+SAFE_PG_ERROR_CODES = {
+    "42P07",  # duplicate_table
+    "42701",  # duplicate_column
+    "42710",  # duplicate_object (index, constraint, etc.)
+    "42P16",  # invalid_table_definition (e.g., column already exists)
+}
+
 # Build connect_args with query timeout if configured
 connect_args = {}
 if settings.database_query_timeout > 0:
@@ -65,235 +81,397 @@ def init_db():
     _run_migrations()
 
 
+def _ensure_migrations_table(conn) -> None:
+    """Create the migrations tracking table if it doesn't exist."""
+    conn.execute(text("""
+        CREATE TABLE IF NOT EXISTS _schema_migrations (
+            name VARCHAR(255) PRIMARY KEY,
+            checksum VARCHAR(64) NOT NULL,
+            applied_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+        );
+    """))
+    conn.commit()
+
+
+def _get_applied_migrations(conn) -> dict[str, str]:
+    """Get all applied migrations and their checksums."""
+    result = conn.execute(text(
+        "SELECT name, checksum FROM _schema_migrations"
+    ))
+    return {row[0]: row[1] for row in result}
+
+
+def _compute_checksum(sql: str) -> str:
+    """Compute a checksum for migration SQL to detect changes."""
+    return hashlib.sha256(sql.strip().encode()).hexdigest()[:16]
+
+
+def _is_safe_error(exception: Exception) -> bool:
+    """Check if the error indicates the migration was already applied."""
+    # Check for psycopg2 errors with pgcode attribute
+    original = getattr(exception, "orig", None)
+    if original is not None:
+        pgcode = getattr(original, "pgcode", None)
+        if pgcode in SAFE_PG_ERROR_CODES:
+            return True
+
+    # Fallback: check error message for common "already exists" patterns
+    error_str = str(exception).lower()
+    safe_patterns = [
+        "already exists",
+        "duplicate key",
+        "relation .* already exists",
+        "column .* already exists",
+    ]
+    return any(pattern in error_str for pattern in safe_patterns)
+
+
+def _record_migration(conn, name: str, checksum: str) -> None:
+    """Record a migration as applied."""
+    conn.execute(text(
+        "INSERT INTO _schema_migrations (name, checksum) VALUES (:name, :checksum)"
+    ), {"name": name, "checksum": checksum})
+    conn.commit()
+
+
 def _run_migrations():
-    """Run manual migrations for schema updates"""
+    """Run manual migrations for schema updates with tracking and error detection."""
     migrations = [
-        # Add format_metadata column to artifacts table
-        """
-        DO $$
-        BEGIN
-            IF NOT EXISTS (
-                SELECT 1 FROM information_schema.columns
-                WHERE table_name = 'artifacts' AND column_name = 'format_metadata'
-            ) THEN
-                ALTER TABLE artifacts ADD COLUMN format_metadata JSONB DEFAULT '{}';
-            END IF;
-        END $$;
-        """,
-        # Add format column to packages table
-        """
-        DO $$
-        BEGIN
-            IF NOT EXISTS (
-                SELECT 1 FROM information_schema.columns
-                WHERE table_name = 'packages' AND column_name = 'format'
-            ) THEN
-                ALTER TABLE packages ADD COLUMN format VARCHAR(50) DEFAULT 'generic' NOT NULL;
-                CREATE INDEX IF NOT EXISTS idx_packages_format ON packages(format);
-            END IF;
-        END $$;
-        """,
-        # Add platform column to packages table
-        """
-        DO $$
-        BEGIN
-            IF NOT EXISTS (
-                SELECT 1 FROM information_schema.columns
-                WHERE table_name = 'packages' AND column_name = 'platform'
-            ) THEN
-                ALTER TABLE packages ADD COLUMN platform VARCHAR(50) DEFAULT 'any' NOT NULL;
-                CREATE INDEX IF NOT EXISTS idx_packages_platform ON packages(platform);
-            END IF;
-        END $$;
-        """,
-        # Add ref_count index and constraints for artifacts
-        """
-        DO $$
-        BEGIN
-            -- Add ref_count index
-            IF NOT EXISTS (
-                SELECT 1 FROM pg_indexes WHERE indexname = 'idx_artifacts_ref_count'
-            ) THEN
-                CREATE INDEX idx_artifacts_ref_count ON artifacts(ref_count);
-            END IF;
-
-            -- Add ref_count >= 0 constraint
-            IF NOT EXISTS (
-                SELECT 1 FROM pg_constraint WHERE conname = 'check_ref_count_non_negative'
-            ) THEN
-                ALTER TABLE artifacts ADD CONSTRAINT check_ref_count_non_negative CHECK (ref_count >= 0);
-            END IF;
-        END $$;
-        """,
-        # Add composite indexes for packages and tags
-        """
-        DO $$
-        BEGIN
-            -- Composite index for package lookup by project and name
-            IF NOT EXISTS (
-                SELECT 1 FROM pg_indexes WHERE indexname = 'idx_packages_project_name'
-            ) THEN
-                CREATE UNIQUE INDEX idx_packages_project_name ON packages(project_id, name);
-            END IF;
-
-            -- Composite index for tag lookup by package and name
-            IF NOT EXISTS (
-                SELECT 1 FROM pg_indexes WHERE indexname = 'idx_tags_package_name'
-            ) THEN
-                CREATE UNIQUE INDEX idx_tags_package_name ON tags(package_id, name);
-            END IF;
-
-            -- Composite index for recent tags queries
-            IF NOT EXISTS (
-                SELECT 1 FROM pg_indexes WHERE indexname = 'idx_tags_package_created_at'
-            ) THEN
-                CREATE INDEX idx_tags_package_created_at ON tags(package_id, created_at);
-            END IF;
-        END $$;
-        """,
-        # Add package_versions indexes and triggers (007_package_versions.sql)
-        """
-        DO $$
-        BEGIN
-            -- Create indexes for package_versions if table exists
-            IF EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'package_versions') THEN
-                -- Indexes for common queries
-                IF NOT EXISTS (SELECT 1 FROM pg_indexes WHERE indexname = 'idx_package_versions_package_id') THEN
-                    CREATE INDEX idx_package_versions_package_id ON package_versions(package_id);
+        Migration(
+            name="001_add_format_metadata",
+            sql="""
+            DO $$
+            BEGIN
+                IF NOT EXISTS (
+                    SELECT 1 FROM information_schema.columns
+                    WHERE table_name = 'artifacts' AND column_name = 'format_metadata'
+                ) THEN
+                    ALTER TABLE artifacts ADD COLUMN format_metadata JSONB DEFAULT '{}';
                 END IF;
-                IF NOT EXISTS (SELECT 1 FROM pg_indexes WHERE indexname = 'idx_package_versions_artifact_id') THEN
-                    CREATE INDEX idx_package_versions_artifact_id ON package_versions(artifact_id);
+            END $$;
+            """,
+        ),
+        Migration(
+            name="002_add_package_format",
+            sql="""
+            DO $$
+            BEGIN
+                IF NOT EXISTS (
+                    SELECT 1 FROM information_schema.columns
+                    WHERE table_name = 'packages' AND column_name = 'format'
+                ) THEN
+                    ALTER TABLE packages ADD COLUMN format VARCHAR(50) DEFAULT 'generic' NOT NULL;
+                    CREATE INDEX IF NOT EXISTS idx_packages_format ON packages(format);
                 END IF;
-                IF NOT EXISTS (SELECT 1 FROM pg_indexes WHERE indexname = 'idx_package_versions_package_version') THEN
-                    CREATE INDEX idx_package_versions_package_version ON package_versions(package_id, version);
+            END $$;
+            """,
+        ),
+        Migration(
+            name="003_add_package_platform",
+            sql="""
+            DO $$
+            BEGIN
+                IF NOT EXISTS (
+                    SELECT 1 FROM information_schema.columns
+                    WHERE table_name = 'packages' AND column_name = 'platform'
+                ) THEN
+                    ALTER TABLE packages ADD COLUMN platform VARCHAR(50) DEFAULT 'any' NOT NULL;
+                    CREATE INDEX IF NOT EXISTS idx_packages_platform ON packages(platform);
                 END IF;
-            END IF;
-        END $$;
-        """,
-        # Create ref_count trigger functions for tags (ensures triggers exist even if initial migration wasn't run)
-        """
-        CREATE OR REPLACE FUNCTION increment_artifact_ref_count()
-        RETURNS TRIGGER AS $$
-        BEGIN
-            UPDATE artifacts SET ref_count = ref_count + 1 WHERE id = NEW.artifact_id;
-            RETURN NEW;
-        END;
-        $$ LANGUAGE plpgsql;
-        """,
-        """
-        CREATE OR REPLACE FUNCTION decrement_artifact_ref_count()
-        RETURNS TRIGGER AS $$
-        BEGIN
-            UPDATE artifacts SET ref_count = ref_count - 1 WHERE id = OLD.artifact_id;
-            RETURN OLD;
-        END;
-        $$ LANGUAGE plpgsql;
-        """,
-        """
-        CREATE OR REPLACE FUNCTION update_artifact_ref_count()
-        RETURNS TRIGGER AS $$
-        BEGIN
-            IF OLD.artifact_id != NEW.artifact_id THEN
-                UPDATE artifacts SET ref_count = ref_count - 1 WHERE id = OLD.artifact_id;
+            END $$;
+            """,
+        ),
+        Migration(
+            name="004_add_ref_count_index_constraint",
+            sql="""
+            DO $$
+            BEGIN
+                IF NOT EXISTS (
+                    SELECT 1 FROM pg_indexes WHERE indexname = 'idx_artifacts_ref_count'
+                ) THEN
+                    CREATE INDEX idx_artifacts_ref_count ON artifacts(ref_count);
+                END IF;
+
+                IF NOT EXISTS (
+                    SELECT 1 FROM pg_constraint WHERE conname = 'check_ref_count_non_negative'
+                ) THEN
+                    ALTER TABLE artifacts ADD CONSTRAINT check_ref_count_non_negative CHECK (ref_count >= 0);
+                END IF;
+            END $$;
+            """,
+        ),
+        Migration(
+            name="005_add_composite_indexes",
+            sql="""
+            DO $$
+            BEGIN
+                IF NOT EXISTS (
+                    SELECT 1 FROM pg_indexes WHERE indexname = 'idx_packages_project_name'
+                ) THEN
+                    CREATE UNIQUE INDEX idx_packages_project_name ON packages(project_id, name);
+                END IF;
+
+                IF NOT EXISTS (
+                    SELECT 1 FROM pg_indexes WHERE indexname = 'idx_tags_package_name'
+                ) THEN
+                    CREATE UNIQUE INDEX idx_tags_package_name ON tags(package_id, name);
+                END IF;
+
+                IF NOT EXISTS (
+                    SELECT 1 FROM pg_indexes WHERE indexname = 'idx_tags_package_created_at'
+                ) THEN
+                    CREATE INDEX idx_tags_package_created_at ON tags(package_id, created_at);
+                END IF;
+            END $$;
+            """,
+        ),
+        Migration(
+            name="006_add_package_versions_indexes",
+            sql="""
+            DO $$
+            BEGIN
+                IF EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'package_versions') THEN
+                    IF NOT EXISTS (SELECT 1 FROM pg_indexes WHERE indexname = 'idx_package_versions_package_id') THEN
+                        CREATE INDEX idx_package_versions_package_id ON package_versions(package_id);
+                    END IF;
+                    IF NOT EXISTS (SELECT 1 FROM pg_indexes WHERE indexname = 'idx_package_versions_artifact_id') THEN
+                        CREATE INDEX idx_package_versions_artifact_id ON package_versions(artifact_id);
+                    END IF;
+                    IF NOT EXISTS (SELECT 1 FROM pg_indexes WHERE indexname = 'idx_package_versions_package_version') THEN
+                        CREATE INDEX idx_package_versions_package_version ON package_versions(package_id, version);
+                    END IF;
+                END IF;
+            END $$;
+            """,
+        ),
+        Migration(
+            name="007_create_ref_count_trigger_functions",
+            sql="""
+            CREATE OR REPLACE FUNCTION increment_artifact_ref_count()
+            RETURNS TRIGGER AS $$
+            BEGIN
                 UPDATE artifacts SET ref_count = ref_count + 1 WHERE id = NEW.artifact_id;
-            END IF;
-            RETURN NEW;
-        END;
-        $$ LANGUAGE plpgsql;
-        """,
-        # Create triggers for tags ref_count management
-        """
-        DO $$
-        BEGIN
-            -- Drop and recreate triggers to ensure they're current
-            DROP TRIGGER IF EXISTS tags_ref_count_insert_trigger ON tags;
-            CREATE TRIGGER tags_ref_count_insert_trigger
-                AFTER INSERT ON tags
-                FOR EACH ROW
-                EXECUTE FUNCTION increment_artifact_ref_count();
+                RETURN NEW;
+            END;
+            $$ LANGUAGE plpgsql;
 
-            DROP TRIGGER IF EXISTS tags_ref_count_delete_trigger ON tags;
-            CREATE TRIGGER tags_ref_count_delete_trigger
-                AFTER DELETE ON tags
-                FOR EACH ROW
-                EXECUTE FUNCTION decrement_artifact_ref_count();
+            CREATE OR REPLACE FUNCTION decrement_artifact_ref_count()
+            RETURNS TRIGGER AS $$
+            BEGIN
+                UPDATE artifacts SET ref_count = ref_count - 1 WHERE id = OLD.artifact_id;
+                RETURN OLD;
+            END;
+            $$ LANGUAGE plpgsql;
 
-            DROP TRIGGER IF EXISTS tags_ref_count_update_trigger ON tags;
-            CREATE TRIGGER tags_ref_count_update_trigger
-                AFTER UPDATE ON tags
-                FOR EACH ROW
-                WHEN (OLD.artifact_id IS DISTINCT FROM NEW.artifact_id)
-                EXECUTE FUNCTION update_artifact_ref_count();
-        END $$;
-        """,
-        # Create ref_count trigger functions for package_versions
-        """
-        CREATE OR REPLACE FUNCTION increment_version_ref_count()
-        RETURNS TRIGGER AS $$
-        BEGIN
-            UPDATE artifacts SET ref_count = ref_count + 1 WHERE id = NEW.artifact_id;
-            RETURN NEW;
-        END;
-        $$ LANGUAGE plpgsql;
-        """,
-        """
-        CREATE OR REPLACE FUNCTION decrement_version_ref_count()
-        RETURNS TRIGGER AS $$
-        BEGIN
-            UPDATE artifacts SET ref_count = ref_count - 1 WHERE id = OLD.artifact_id;
-            RETURN OLD;
-        END;
-        $$ LANGUAGE plpgsql;
-        """,
-        # Create triggers for package_versions ref_count
-        """
-        DO $$
-        BEGIN
-            IF EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'package_versions') THEN
-                -- Drop and recreate triggers to ensure they're current
-                DROP TRIGGER IF EXISTS package_versions_ref_count_insert ON package_versions;
-                CREATE TRIGGER package_versions_ref_count_insert
-                    AFTER INSERT ON package_versions
+            CREATE OR REPLACE FUNCTION update_artifact_ref_count()
+            RETURNS TRIGGER AS $$
+            BEGIN
+                IF OLD.artifact_id != NEW.artifact_id THEN
+                    UPDATE artifacts SET ref_count = ref_count - 1 WHERE id = OLD.artifact_id;
+                    UPDATE artifacts SET ref_count = ref_count + 1 WHERE id = NEW.artifact_id;
+                END IF;
+                RETURN NEW;
+            END;
+            $$ LANGUAGE plpgsql;
+            """,
+        ),
+        Migration(
+            name="008_create_tags_ref_count_triggers",
+            sql="""
+            DO $$
+            BEGIN
+                DROP TRIGGER IF EXISTS tags_ref_count_insert_trigger ON tags;
+                CREATE TRIGGER tags_ref_count_insert_trigger
+                    AFTER INSERT ON tags
                     FOR EACH ROW
-                    EXECUTE FUNCTION increment_version_ref_count();
+                    EXECUTE FUNCTION increment_artifact_ref_count();
 
-                DROP TRIGGER IF EXISTS package_versions_ref_count_delete ON package_versions;
-                CREATE TRIGGER package_versions_ref_count_delete
-                    AFTER DELETE ON package_versions
+                DROP TRIGGER IF EXISTS tags_ref_count_delete_trigger ON tags;
+                CREATE TRIGGER tags_ref_count_delete_trigger
+                    AFTER DELETE ON tags
                     FOR EACH ROW
-                    EXECUTE FUNCTION decrement_version_ref_count();
-            END IF;
-        END $$;
-        """,
-        # Migrate existing semver tags to package_versions
-        r"""
-        DO $$
-        BEGIN
-            IF EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'package_versions') THEN
-                -- Migrate tags that look like versions (v1.0.0, 1.2.3, 2.0.0-beta, etc.)
-                INSERT INTO package_versions (package_id, artifact_id, version, version_source, created_by, created_at)
-                SELECT
-                    t.package_id,
-                    t.artifact_id,
-                    CASE WHEN t.name LIKE 'v%' THEN substring(t.name from 2) ELSE t.name END,
-                    'migrated_from_tag',
-                    t.created_by,
-                    t.created_at
-                FROM tags t
-                WHERE t.name ~ '^v?[0-9]+\.[0-9]+(\.[0-9]+)?([-.][a-zA-Z0-9]+)?$'
-                ON CONFLICT (package_id, version) DO NOTHING;
-            END IF;
-        END $$;
-        """,
+                    EXECUTE FUNCTION decrement_artifact_ref_count();
+
+                DROP TRIGGER IF EXISTS tags_ref_count_update_trigger ON tags;
+                CREATE TRIGGER tags_ref_count_update_trigger
+                    AFTER UPDATE ON tags
+                    FOR EACH ROW
+                    WHEN (OLD.artifact_id IS DISTINCT FROM NEW.artifact_id)
+                    EXECUTE FUNCTION update_artifact_ref_count();
+            END $$;
+            """,
+        ),
+        Migration(
+            name="009_create_version_ref_count_functions",
+            sql="""
+            CREATE OR REPLACE FUNCTION increment_version_ref_count()
+            RETURNS TRIGGER AS $$
+            BEGIN
+                UPDATE artifacts SET ref_count = ref_count + 1 WHERE id = NEW.artifact_id;
+                RETURN NEW;
+            END;
+            $$ LANGUAGE plpgsql;
+
+            CREATE OR REPLACE FUNCTION decrement_version_ref_count()
+            RETURNS TRIGGER AS $$
+            BEGIN
+                UPDATE artifacts SET ref_count = ref_count - 1 WHERE id = OLD.artifact_id;
+                RETURN OLD;
+            END;
+            $$ LANGUAGE plpgsql;
+            """,
+        ),
+        Migration(
+            name="010_create_package_versions_triggers",
+            sql="""
+            DO $$
+            BEGIN
+                IF EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'package_versions') THEN
+                    DROP TRIGGER IF EXISTS package_versions_ref_count_insert ON package_versions;
+                    CREATE TRIGGER package_versions_ref_count_insert
+                        AFTER INSERT ON package_versions
+                        FOR EACH ROW
+                        EXECUTE FUNCTION increment_version_ref_count();
+
+                    DROP TRIGGER IF EXISTS package_versions_ref_count_delete ON package_versions;
+                    CREATE TRIGGER package_versions_ref_count_delete
+                        AFTER DELETE ON package_versions
+                        FOR EACH ROW
+                        EXECUTE FUNCTION decrement_version_ref_count();
+                END IF;
+            END $$;
+            """,
+        ),
+        Migration(
+            name="011_migrate_semver_tags_to_versions",
+            sql=r"""
+            DO $$
+            BEGIN
+                IF EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'package_versions') THEN
+                    INSERT INTO package_versions (id, package_id, artifact_id, version, version_source, created_by, created_at)
+                    SELECT
+                        gen_random_uuid(),
+                        t.package_id,
+                        t.artifact_id,
+                        CASE WHEN t.name LIKE 'v%' THEN substring(t.name from 2) ELSE t.name END,
+                        'migrated_from_tag',
+                        t.created_by,
+                        t.created_at
+                    FROM tags t
+                    WHERE t.name ~ '^v?[0-9]+\.[0-9]+(\.[0-9]+)?([-.][a-zA-Z0-9]+)?$'
+                    ON CONFLICT (package_id, version) DO NOTHING;
+                END IF;
+            END $$;
+            """,
+        ),
+        Migration(
+            name="012_create_teams_table",
+            sql="""
+            CREATE TABLE IF NOT EXISTS teams (
+                id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+                name VARCHAR(255) NOT NULL,
+                slug VARCHAR(255) NOT NULL UNIQUE,
+                description TEXT,
+                created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+                updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+                created_by VARCHAR(255) NOT NULL,
+                settings JSONB DEFAULT '{}'
+            );
+            """,
+        ),
+        Migration(
+            name="013_create_team_memberships_table",
+            sql="""
+            CREATE TABLE IF NOT EXISTS team_memberships (
+                id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+                team_id UUID NOT NULL REFERENCES teams(id) ON DELETE CASCADE,
+                user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+                role VARCHAR(50) NOT NULL DEFAULT 'member',
+                created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+                invited_by VARCHAR(255),
+                CONSTRAINT team_memberships_unique UNIQUE (team_id, user_id),
+                CONSTRAINT team_memberships_role_check CHECK (role IN ('owner', 'admin', 'member'))
+            );
+            """,
+        ),
+        Migration(
+            name="014_add_team_id_to_projects",
+            sql="""
+            DO $$
+            BEGIN
+                IF NOT EXISTS (
+                    SELECT 1 FROM information_schema.columns
+                    WHERE table_name = 'projects' AND column_name = 'team_id'
+                ) THEN
+                    ALTER TABLE projects ADD COLUMN team_id UUID REFERENCES teams(id) ON DELETE SET NULL;
+                    CREATE INDEX IF NOT EXISTS idx_projects_team_id ON projects(team_id);
+                END IF;
+            END $$;
+            """,
+        ),
+        Migration(
+            name="015_add_teams_indexes",
+            sql="""
+            DO $$
+            BEGIN
+                IF NOT EXISTS (SELECT 1 FROM pg_indexes WHERE indexname = 'idx_teams_slug') THEN
+                    CREATE INDEX idx_teams_slug ON teams(slug);
+                END IF;
+                IF NOT EXISTS (SELECT 1 FROM pg_indexes WHERE indexname = 'idx_teams_created_by') THEN
+                    CREATE INDEX idx_teams_created_by ON teams(created_by);
+                END IF;
+                IF NOT EXISTS (SELECT 1 FROM pg_indexes WHERE indexname = 'idx_team_memberships_team_id') THEN
+                    CREATE INDEX idx_team_memberships_team_id ON team_memberships(team_id);
+                END IF;
+                IF NOT EXISTS (SELECT 1 FROM pg_indexes WHERE indexname = 'idx_team_memberships_user_id') THEN
+                    CREATE INDEX idx_team_memberships_user_id ON team_memberships(user_id);
+                END IF;
+            END $$;
+            """,
+        ),
     ]
 
     with engine.connect() as conn:
+        # Ensure migrations tracking table exists
+        _ensure_migrations_table(conn)
+
+        # Get already-applied migrations
+        applied = _get_applied_migrations(conn)
+
         for migration in migrations:
+            checksum = _compute_checksum(migration.sql)
+
+            # Check if migration was already applied
+            if migration.name in applied:
+                stored_checksum = applied[migration.name]
+                if stored_checksum != checksum:
+                    logger.warning(
+                        f"Migration '{migration.name}' has changed since it was applied! "
+                        f"Stored checksum: {stored_checksum}, current: {checksum}"
+                    )
+                continue
+
+            # Run the migration
             try:
-                conn.execute(text(migration))
+                logger.info(f"Running migration: {migration.name}")
+                conn.execute(text(migration.sql))
                 conn.commit()
+                _record_migration(conn, migration.name, checksum)
+                logger.info(f"Migration '{migration.name}' applied successfully")
             except Exception as e:
-                logger.warning(f"Migration failed (may already be applied): {e}")
+                conn.rollback()
+                if _is_safe_error(e):
+                    # Migration was already applied (schema already exists)
+                    logger.info(
+                        f"Migration '{migration.name}' already applied (schema exists), recording as complete"
+                    )
+                    _record_migration(conn, migration.name, checksum)
+                else:
+                    # Real error - fail hard
+                    logger.error(f"Migration '{migration.name}' failed: {e}")
+                    raise RuntimeError(
+                        f"Migration '{migration.name}' failed with error: {e}"
+                    ) from e
 
 
 def get_db() -> Generator[Session, None, None]:

backend/app/routes.py

@@ -1093,6 +1093,43 @@ def oidc_callback(
     return response
 
 
+# --- User Search Routes (for autocomplete) ---
+
+
+@router.get("/api/v1/users/search")
+def search_users(
+    q: str = Query(..., min_length=1, description="Search query for username"),
+    limit: int = Query(default=10, ge=1, le=50, description="Maximum results"),
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+):
+    """
+    Search for users by username prefix.
+    Returns basic user info for autocomplete (no email for privacy).
+    Any authenticated user can search.
+    """
+    search_pattern = f"{q.lower()}%"
+    users = (
+        db.query(User)
+        .filter(
+            func.lower(User.username).like(search_pattern),
+            User.is_active == True,
+        )
+        .order_by(User.username)
+        .limit(limit)
+        .all()
+    )
+
+    return [
+        {
+            "id": str(u.id),
+            "username": u.username,
+            "is_admin": u.is_admin,
+        }
+        for u in users
+    ]
+
+
 # --- Admin User Management Routes ---
 
 
@@ -1795,14 +1832,63 @@ def list_project_permissions(
 ):
     """
     List all access permissions for a project.
+    Includes both explicit permissions and team-based access.
     Requires admin access to the project.
     """
     project = check_project_access(db, project_name, current_user, "admin")
 
     auth_service = AuthorizationService(db)
-    permissions = auth_service.list_project_permissions(str(project.id))
+    explicit_permissions = auth_service.list_project_permissions(str(project.id))
 
-    return permissions
+    # Convert to response format with source field
+    result = []
+    for perm in explicit_permissions:
+        result.append(AccessPermissionResponse(
+            id=perm.id,
+            project_id=perm.project_id,
+            user_id=perm.user_id,
+            level=perm.level,
+            created_at=perm.created_at,
+            expires_at=perm.expires_at,
+            source="explicit",
+        ))
+
+    # Add team-based access if project belongs to a team
+    if project.team_id:
+        team = db.query(Team).filter(Team.id == project.team_id).first()
+        if team:
+            memberships = (
+                db.query(TeamMembership)
+                .join(User, TeamMembership.user_id == User.id)
+                .filter(TeamMembership.team_id == project.team_id)
+                .all()
+            )
+
+            # Track users who already have explicit permissions
+            explicit_users = {p.user_id for p in result}
+
+            for membership in memberships:
+                user = db.query(User).filter(User.id == membership.user_id).first()
+                if user and user.username not in explicit_users:
+                    # Map team role to project access level
+                    if membership.role in ("owner", "admin"):
+                        level = "admin"
+                    else:
+                        level = "read"
+
+                    result.append(AccessPermissionResponse(
+                        id=membership.id,  # Use membership ID
+                        project_id=project.id,
+                        user_id=user.username,
+                        level=level,
+                        created_at=membership.created_at,
+                        expires_at=None,
+                        source="team",
+                        team_slug=team.slug,
+                        team_role=membership.role,
+                    ))
+
+    return result
 
 
 @router.post(

backend/app/schemas.py

@@ -911,6 +911,9 @@ class AccessPermissionResponse(BaseModel):
     level: str
     created_at: datetime
     expires_at: Optional[datetime]
+    source: Optional[str] = "explicit"  # "explicit" or "team"
+    team_slug: Optional[str] = None  # Team slug if source is "team"
+    team_role: Optional[str] = None  # Team role if source is "team"
 
     class Config:
         from_attributes = True

backend/app/seed.py

@@ -7,6 +7,7 @@ from sqlalchemy.orm import Session
 
 from .models import Project, Package, Artifact, Tag, Upload, PackageVersion, ArtifactDependency, Team, TeamMembership, User
 from .storage import get_storage
+from .auth import hash_password
 
 logger = logging.getLogger(__name__)
 
@@ -176,6 +177,53 @@ def seed_database(db: Session) -> None:
 
     logger.info(f"Created team: {demo_team.name} ({demo_team.slug})")
 
+    # Create test users with various roles
+    test_users = [
+        {"username": "alice", "email": "alice@example.com", "role": "admin"},
+        {"username": "bob", "email": "bob@example.com", "role": "admin"},
+        {"username": "charlie", "email": "charlie@example.com", "role": "member"},
+        {"username": "diana", "email": "diana@example.com", "role": "member"},
+        {"username": "eve", "email": "eve@example.com", "role": "member"},
+        {"username": "frank", "email": None, "role": "member"},
+    ]
+
+    for user_data in test_users:
+        # Check if user already exists
+        existing_user = db.query(User).filter(User.username == user_data["username"]).first()
+        if existing_user:
+            test_user = existing_user
+        else:
+            # Create the user with password same as username
+            test_user = User(
+                username=user_data["username"],
+                email=user_data["email"],
+                password_hash=hash_password(user_data["username"]),
+                is_admin=False,
+                is_active=True,
+                must_change_password=False,
+            )
+            db.add(test_user)
+            db.flush()
+            logger.info(f"Created test user: {user_data['username']}")
+
+        # Add to demo team with specified role
+        existing_membership = db.query(TeamMembership).filter(
+            TeamMembership.team_id == demo_team.id,
+            TeamMembership.user_id == test_user.id,
+        ).first()
+
+        if not existing_membership:
+            membership = TeamMembership(
+                team_id=demo_team.id,
+                user_id=test_user.id,
+                role=user_data["role"],
+                invited_by=team_owner_username,
+            )
+            db.add(membership)
+            logger.info(f"Added {user_data['username']} to {demo_team.slug} as {user_data['role']}")
+
+    db.flush()
+
     # Create projects and packages
     project_map = {}
     package_map = {}

frontend/src/api.ts

@@ -668,3 +668,17 @@ export async function listTeamProjects(
   });
   return handleResponse<PaginatedResponse<Project>>(response);
 }
+
+// User search (for autocomplete)
+export interface UserSearchResult {
+  id: string;
+  username: string;
+  is_admin: boolean;
+}
+
+export async function searchUsers(query: string, limit: number = 10): Promise<UserSearchResult[]> {
+  const response = await fetch(`${API_BASE}/users/search?q=${encodeURIComponent(query)}&limit=${limit}`, {
+    credentials: 'include',
+  });
+  return handleResponse<UserSearchResult[]>(response);
+}

frontend/src/components/AccessManagement.css

@@ -114,3 +114,32 @@
   font-size: 0.875rem;
   color: var(--text-primary);
 }
+
+/* Access source styling */
+.access-source {
+  display: inline-block;
+  padding: 0.2rem 0.4rem;
+  border-radius: 4px;
+  font-size: 0.75rem;
+  font-weight: 500;
+}
+
+.access-source--explicit {
+  background: var(--bg-tertiary);
+  color: var(--text-secondary);
+}
+
+.access-source--team {
+  background: var(--color-info-bg, #e3f2fd);
+  color: var(--color-info, #1976d2);
+}
+
+/* Team access row styling */
+.team-access-row {
+  background: var(--bg-secondary, #fafafa);
+}
+
+.team-access-row td.actions .text-muted {
+  font-size: 0.8125rem;
+  font-style: italic;
+}

frontend/src/components/AccessManagement.tsx

@@ -208,85 +208,104 @@ export function AccessManagement({ projectName }: AccessManagementProps) {
               <tr>
                 <th>User</th>
                 <th>Access Level</th>
+                <th>Source</th>
                 <th>Granted</th>
                 <th>Expires</th>
                 <th>Actions</th>
               </tr>
             </thead>
             <tbody>
-              {permissions.map((p) => (
-                <tr key={p.id}>
-                  <td>{p.user_id}</td>
-                  <td>
-                    {editingUser === p.user_id ? (
-                      <select
-                        value={editLevel}
-                        onChange={(e) => setEditLevel(e.target.value as AccessLevel)}
-                        disabled={submitting}
-                      >
-                        <option value="read">Read</option>
-                        <option value="write">Write</option>
-                        <option value="admin">Admin</option>
-                      </select>
-                    ) : (
-                      <span className={`access-badge access-badge--${p.level}`}>
-                        {p.level}
-                      </span>
-                    )}
-                  </td>
-                  <td>{new Date(p.created_at).toLocaleDateString()}</td>
-                  <td>
-                    {editingUser === p.user_id ? (
-                      <input
-                        type="date"
-                        value={editExpiresAt}
-                        onChange={(e) => setEditExpiresAt(e.target.value)}
-                        disabled={submitting}
-                        min={new Date().toISOString().split('T')[0]}
-                      />
-                    ) : (
-                      formatExpiration(p.expires_at)
-                    )}
-                  </td>
-                  <td className="actions">
-                    {editingUser === p.user_id ? (
-                      <>
-                        <button
-                          className="btn btn-sm btn-primary"
-                          onClick={() => handleUpdate(p.user_id)}
+              {permissions.map((p) => {
+                const isTeamBased = p.source === 'team';
+                return (
+                  <tr key={p.id} className={isTeamBased ? 'team-access-row' : ''}>
+                    <td>{p.user_id}</td>
+                    <td>
+                      {editingUser === p.user_id && !isTeamBased ? (
+                        <select
+                          value={editLevel}
+                          onChange={(e) => setEditLevel(e.target.value as AccessLevel)}
                           disabled={submitting}
                         >
-                          Save
-                        </button>
-                        <button
-                          className="btn btn-sm"
-                          onClick={cancelEdit}
+                          <option value="read">Read</option>
+                          <option value="write">Write</option>
+                          <option value="admin">Admin</option>
+                        </select>
+                      ) : (
+                        <span className={`access-badge access-badge--${p.level}`}>
+                          {p.level}
+                        </span>
+                      )}
+                    </td>
+                    <td>
+                      {isTeamBased ? (
+                        <span className="access-source access-source--team" title={`Team role: ${p.team_role}`}>
+                          Team: {p.team_slug}
+                        </span>
+                      ) : (
+                        <span className="access-source access-source--explicit">
+                          Explicit
+                        </span>
+                      )}
+                    </td>
+                    <td>{new Date(p.created_at).toLocaleDateString()}</td>
+                    <td>
+                      {editingUser === p.user_id && !isTeamBased ? (
+                        <input
+                          type="date"
+                          value={editExpiresAt}
+                          onChange={(e) => setEditExpiresAt(e.target.value)}
                           disabled={submitting}
-                        >
-                          Cancel
-                        </button>
-                      </>
-                    ) : (
-                      <>
-                        <button
-                          className="btn btn-sm"
-                          onClick={() => startEdit(p)}
-                          disabled={submitting}
-                        >
-                          Edit
-                        </button>
-                        <button
-                          className="btn btn-sm btn-danger"
-                          onClick={() => handleRevoke(p.user_id)}
-                          disabled={submitting}
-                        >
-                          Revoke
-                        </button>
-                      </>
-                    )}
-                  </td>
-                </tr>
-              ))}
+                          min={new Date().toISOString().split('T')[0]}
+                        />
+                      ) : (
+                        formatExpiration(p.expires_at)
+                      )}
+                    </td>
+                    <td className="actions">
+                      {isTeamBased ? (
+                        <span className="text-muted" title="Manage access via team settings">
+                          Via team
+                        </span>
+                      ) : editingUser === p.user_id ? (
+                        <>
+                          <button
+                            className="btn btn-sm btn-primary"
+                            onClick={() => handleUpdate(p.user_id)}
+                            disabled={submitting}
+                          >
+                            Save
+                          </button>
+                          <button
+                            className="btn btn-sm"
+                            onClick={cancelEdit}
+                            disabled={submitting}
+                          >
+                            Cancel
+                          </button>
+                        </>
+                      ) : (
+                        <>
+                          <button
+                            className="btn btn-sm"
+                            onClick={() => startEdit(p)}
+                            disabled={submitting}
+                          >
+                            Edit
+                          </button>
+                          <button
+                            className="btn btn-sm btn-danger"
+                            onClick={() => handleRevoke(p.user_id)}
+                            disabled={submitting}
+                          >
+                            Revoke
+                          </button>
+                        </>
+                      )}
+                    </td>
+                  </tr>
+                );
+              })}
             </tbody>
           </table>
         )}

frontend/src/components/Layout.css

@@ -284,7 +284,11 @@
 .footer-brand {
   display: flex;
   align-items: center;
-  gap: 12px;
+  gap: 8px;
+}
+
+.footer-icon {
+  color: var(--accent-primary);
 }
 
 .footer-logo {
@@ -292,6 +296,10 @@
   color: var(--text-primary);
 }
 
+.footer-separator {
+  color: var(--text-muted);
+}
+
 .footer-tagline {
   color: var(--text-secondary);
   font-size: 0.875rem;

frontend/src/components/Layout.tsx

@@ -2,6 +2,8 @@ import { ReactNode, useState, useRef, useEffect } from 'react';
 import { Link, NavLink, useLocation, useNavigate } from 'react-router-dom';
 import { useAuth } from '../contexts/AuthContext';
 import { GlobalSearch } from './GlobalSearch';
+import { listTeams } from '../api';
+import { TeamDetail } from '../types';
 import './Layout.css';
 
 interface LayoutProps {
@@ -13,8 +15,22 @@ function Layout({ children }: LayoutProps) {
   const navigate = useNavigate();
   const { user, loading, logout } = useAuth();
   const [showUserMenu, setShowUserMenu] = useState(false);
+  const [userTeams, setUserTeams] = useState<TeamDetail[]>([]);
   const menuRef = useRef<HTMLDivElement>(null);
 
+  // Fetch user's teams
+  useEffect(() => {
+    if (user) {
+      listTeams({ limit: 10 }).then(data => {
+        setUserTeams(data.items);
+      }).catch(() => {
+        setUserTeams([]);
+      });
+    } else {
+      setUserTeams([]);
+    }
+  }, [user]);
+
   // Close menu when clicking outside
   useEffect(() => {
     function handleClickOutside(event: MouseEvent) {
@@ -77,15 +93,18 @@ function Layout({ children }: LayoutProps) {
               </svg>
               Dashboard
             </Link>
-            {user && (
-              <Link to="/teams" className={location.pathname.startsWith('/teams') ? 'active' : ''}>
+            {user && userTeams.length > 0 && (
+              <Link
+                to={userTeams.length === 1 ? `/teams/${userTeams[0].slug}` : '/teams'}
+                className={location.pathname.startsWith('/teams') ? 'active' : ''}
+              >
                 <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
                   <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"/>
                   <circle cx="9" cy="7" r="4"/>
                   <path d="M23 21v-2a4 4 0 0 0-3-3.87"/>
                   <path d="M16 3.13a4 4 0 0 1 0 7.75"/>
                 </svg>
-                Teams
+                {userTeams.length === 1 ? 'Team' : 'Teams'}
               </Link>
             )}
             <a href="/docs" className="nav-link-muted">
@@ -199,7 +218,17 @@ function Layout({ children }: LayoutProps) {
       <footer className="footer">
         <div className="container footer-content">
           <div className="footer-brand">
+            <svg className="footer-icon" width="18" height="18" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+              <path d="M6 14 Q6 8 3 8 Q6 4 6 4 Q6 4 9 8 Q6 8 6 14" fill="currentColor" opacity="0.6"/>
+              <rect x="5.25" y="13" width="1.5" height="4" fill="currentColor" opacity="0.6"/>
+              <path d="M12 12 Q12 5 8 5 Q12 1 12 1 Q12 1 16 5 Q12 5 12 12" fill="currentColor"/>
+              <rect x="11.25" y="11" width="1.5" height="5" fill="currentColor"/>
+              <path d="M18 14 Q18 8 15 8 Q18 4 18 4 Q18 4 21 8 Q18 8 18 14" fill="currentColor" opacity="0.6"/>
+              <rect x="17.25" y="13" width="1.5" height="4" fill="currentColor" opacity="0.6"/>
+              <ellipse cx="12" cy="19" rx="9" ry="1.5" fill="currentColor" opacity="0.3"/>
+            </svg>
             <span className="footer-logo">Orchard</span>
+            <span className="footer-separator">·</span>
             <span className="footer-tagline">Content-Addressable Storage</span>
           </div>
           <div className="footer-links">

frontend/src/components/TeamSelector.css

@@ -7,10 +7,10 @@
   align-items: center;
   gap: 0.5rem;
   padding: 0.375rem 0.75rem;
-  background: var(--color-bg-secondary);
-  border: 1px solid var(--color-border);
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-md);
-  color: var(--color-text);
+  color: var(--text-primary);
   font-size: 0.875rem;
   cursor: pointer;
   transition: all 0.15s ease;
@@ -18,8 +18,8 @@
 }
 
 .team-selector-trigger:hover:not(:disabled) {
-  background: var(--color-bg-tertiary);
-  border-color: var(--color-border-hover);
+  background: var(--bg-tertiary);
+  border-color: var(--border-secondary);
 }
 
 .team-selector-trigger:disabled {
@@ -51,8 +51,8 @@
   right: 0;
   min-width: 240px;
   margin-top: 0.25rem;
-  background: var(--color-bg);
-  border: 1px solid var(--color-border);
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-md);
   box-shadow: var(--shadow-lg);
   z-index: 100;
@@ -62,7 +62,7 @@
 .team-selector-empty {
   padding: 1rem;
   text-align: center;
-  color: var(--color-text-muted);
+  color: var(--text-muted);
 }
 
 .team-selector-empty p {
@@ -71,7 +71,7 @@
 }
 
 .team-selector-create-link {
-  color: var(--color-primary);
+  color: var(--accent-primary);
   font-size: 0.875rem;
   text-decoration: none;
 }
@@ -96,7 +96,7 @@
   padding: 0.5rem 0.75rem;
   background: none;
   border: none;
-  color: var(--color-text);
+  color: var(--text-primary);
   font-size: 0.875rem;
   cursor: pointer;
   text-align: left;
@@ -104,11 +104,11 @@
 }
 
 .team-selector-item:hover {
-  background: var(--color-bg-secondary);
+  background: var(--bg-hover);
 }
 
 .team-selector-item.selected {
-  background: var(--color-primary-bg);
+  background: rgba(16, 185, 129, 0.1);
 }
 
 .team-selector-item-info {
@@ -127,7 +127,7 @@
 .team-selector-item-meta {
   display: block;
   font-size: 0.75rem;
-  color: var(--color-text-muted);
+  color: var(--text-muted);
 }
 
 .team-selector-item-role {
@@ -140,24 +140,24 @@
   display: flex;
   justify-content: space-between;
   padding: 0.5rem 0.75rem;
-  border-top: 1px solid var(--color-border);
-  background: var(--color-bg-secondary);
+  border-top: 1px solid var(--border-primary);
+  background: var(--bg-tertiary);
 }
 
 .team-selector-link {
   font-size: 0.8125rem;
-  color: var(--color-text-muted);
+  color: var(--text-muted);
   text-decoration: none;
 }
 
 .team-selector-link:hover {
-  color: var(--color-text);
+  color: var(--text-primary);
 }
 
 .team-selector-link-primary {
-  color: var(--color-primary);
+  color: var(--accent-primary);
 }
 
 .team-selector-link-primary:hover {
-  color: var(--color-primary-hover);
+  color: var(--accent-primary-hover);
 }

frontend/src/components/UserAutocomplete.css

@@ -0,0 +1,105 @@
+.user-autocomplete {
+  position: relative;
+  width: 100%;
+}
+
+.user-autocomplete__input-wrapper {
+  position: relative;
+}
+
+.user-autocomplete__input {
+  width: 100%;
+  padding: 0.625rem 2.5rem 0.625rem 0.75rem;
+  border: 1px solid var(--border-primary);
+  border-radius: var(--radius-md);
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
+  font-size: 0.875rem;
+}
+
+.user-autocomplete__input:focus {
+  outline: none;
+  border-color: var(--accent-primary);
+  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
+}
+
+.user-autocomplete__spinner {
+  position: absolute;
+  right: 0.75rem;
+  top: 50%;
+  transform: translateY(-50%);
+  width: 16px;
+  height: 16px;
+  border: 2px solid var(--border-primary);
+  border-top-color: var(--accent-primary);
+  border-radius: 50%;
+  animation: spin 0.6s linear infinite;
+}
+
+@keyframes spin {
+  to { transform: translateY(-50%) rotate(360deg); }
+}
+
+.user-autocomplete__dropdown {
+  position: absolute;
+  top: 100%;
+  left: 0;
+  right: 0;
+  margin-top: 4px;
+  padding: 0.25rem;
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-primary);
+  border-radius: var(--radius-md);
+  box-shadow: var(--shadow-lg);
+  z-index: 100;
+  max-height: 240px;
+  overflow-y: auto;
+  list-style: none;
+}
+
+.user-autocomplete__option {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  padding: 0.5rem 0.75rem;
+  border-radius: var(--radius-sm);
+  cursor: pointer;
+  transition: background 0.1s;
+}
+
+.user-autocomplete__option:hover,
+.user-autocomplete__option.selected {
+  background: var(--bg-hover);
+}
+
+.user-autocomplete__avatar {
+  width: 32px;
+  height: 32px;
+  border-radius: 50%;
+  background: var(--accent-primary);
+  color: white;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-weight: 600;
+  font-size: 0.875rem;
+  flex-shrink: 0;
+}
+
+.user-autocomplete__user-info {
+  display: flex;
+  flex-direction: column;
+  min-width: 0;
+}
+
+.user-autocomplete__username {
+  font-weight: 500;
+  color: var(--text-primary);
+}
+
+.user-autocomplete__admin-badge {
+  font-size: 0.6875rem;
+  color: var(--text-muted);
+  text-transform: uppercase;
+  letter-spacing: 0.025em;
+}

frontend/src/components/UserAutocomplete.tsx

@@ -0,0 +1,171 @@
+import { useState, useEffect, useRef, useCallback } from 'react';
+import { searchUsers, UserSearchResult } from '../api';
+import './UserAutocomplete.css';
+
+interface UserAutocompleteProps {
+  value: string;
+  onChange: (username: string) => void;
+  placeholder?: string;
+  disabled?: boolean;
+  autoFocus?: boolean;
+}
+
+export function UserAutocomplete({
+  value,
+  onChange,
+  placeholder = 'Search users...',
+  disabled = false,
+  autoFocus = false,
+}: UserAutocompleteProps) {
+  const [query, setQuery] = useState(value);
+  const [results, setResults] = useState<UserSearchResult[]>([]);
+  const [loading, setLoading] = useState(false);
+  const [isOpen, setIsOpen] = useState(false);
+  const [selectedIndex, setSelectedIndex] = useState(-1);
+  const containerRef = useRef<HTMLDivElement>(null);
+  const inputRef = useRef<HTMLInputElement>(null);
+  const debounceRef = useRef<ReturnType<typeof setTimeout>>();
+
+  // Search for users with debounce
+  const doSearch = useCallback(async (searchQuery: string) => {
+    if (searchQuery.length < 1) {
+      setResults([]);
+      setIsOpen(false);
+      return;
+    }
+
+    setLoading(true);
+    try {
+      const users = await searchUsers(searchQuery);
+      setResults(users);
+      setIsOpen(users.length > 0);
+      setSelectedIndex(-1);
+    } catch {
+      setResults([]);
+      setIsOpen(false);
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  // Handle input change with debounce
+  const handleInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const newValue = e.target.value;
+    setQuery(newValue);
+    onChange(newValue); // Update parent immediately for form validation
+
+    // Debounce the search
+    if (debounceRef.current) {
+      clearTimeout(debounceRef.current);
+    }
+    debounceRef.current = setTimeout(() => {
+      doSearch(newValue);
+    }, 200);
+  };
+
+  // Handle selecting a user
+  const handleSelect = (user: UserSearchResult) => {
+    setQuery(user.username);
+    onChange(user.username);
+    setIsOpen(false);
+    setResults([]);
+    inputRef.current?.focus();
+  };
+
+  // Handle keyboard navigation
+  const handleKeyDown = (e: React.KeyboardEvent) => {
+    if (!isOpen) return;
+
+    switch (e.key) {
+      case 'ArrowDown':
+        e.preventDefault();
+        setSelectedIndex(prev => (prev < results.length - 1 ? prev + 1 : prev));
+        break;
+      case 'ArrowUp':
+        e.preventDefault();
+        setSelectedIndex(prev => (prev > 0 ? prev - 1 : -1));
+        break;
+      case 'Enter':
+        e.preventDefault();
+        if (selectedIndex >= 0 && results[selectedIndex]) {
+          handleSelect(results[selectedIndex]);
+        }
+        break;
+      case 'Escape':
+        setIsOpen(false);
+        break;
+    }
+  };
+
+  // Close dropdown when clicking outside
+  useEffect(() => {
+    const handleClickOutside = (e: MouseEvent) => {
+      if (containerRef.current && !containerRef.current.contains(e.target as Node)) {
+        setIsOpen(false);
+      }
+    };
+
+    document.addEventListener('mousedown', handleClickOutside);
+    return () => document.removeEventListener('mousedown', handleClickOutside);
+  }, []);
+
+  // Sync external value changes
+  useEffect(() => {
+    setQuery(value);
+  }, [value]);
+
+  // Cleanup debounce on unmount
+  useEffect(() => {
+    return () => {
+      if (debounceRef.current) {
+        clearTimeout(debounceRef.current);
+      }
+    };
+  }, []);
+
+  return (
+    <div className="user-autocomplete" ref={containerRef}>
+      <div className="user-autocomplete__input-wrapper">
+        <input
+          ref={inputRef}
+          type="text"
+          value={query}
+          onChange={handleInputChange}
+          onKeyDown={handleKeyDown}
+          onFocus={() => query.length >= 1 && results.length > 0 && setIsOpen(true)}
+          placeholder={placeholder}
+          disabled={disabled}
+          autoFocus={autoFocus}
+          autoComplete="off"
+          className="user-autocomplete__input"
+        />
+        {loading && (
+          <div className="user-autocomplete__spinner" />
+        )}
+      </div>
+
+      {isOpen && results.length > 0 && (
+        <ul className="user-autocomplete__dropdown">
+          {results.map((user, index) => (
+            <li
+              key={user.id}
+              className={`user-autocomplete__option ${index === selectedIndex ? 'selected' : ''}`}
+              onClick={() => handleSelect(user)}
+              onMouseEnter={() => setSelectedIndex(index)}
+            >
+              <div className="user-autocomplete__avatar">
+                {user.username.charAt(0).toUpperCase()}
+              </div>
+              <div className="user-autocomplete__user-info">
+                <span className="user-autocomplete__username">{user.username}</span>
+                {user.is_admin && (
+                  <span className="user-autocomplete__admin-badge">Admin</span>
+                )}
+              </div>
+            </li>
+          ))}
+        </ul>
+      )}
+    </div>
+  );
+}

frontend/src/pages/Home.tsx

@@ -179,16 +179,18 @@ function Home() {
         </form>
       )}
 
-      <div className="list-controls">
-        <FilterDropdown
-          label="Visibility"
-          options={VISIBILITY_OPTIONS}
-          value={visibility}
-          onChange={handleVisibilityChange}
-        />
-      </div>
+      {user && (
+        <div className="list-controls">
+          <FilterDropdown
+            label="Visibility"
+            options={VISIBILITY_OPTIONS}
+            value={visibility}
+            onChange={handleVisibilityChange}
+          />
+        </div>
+      )}
 
-      {hasActiveFilters && (
+      {user && hasActiveFilters && (
         <FilterChipGroup onClearAll={clearFilters}>
           {visibility && (
             <FilterChip

frontend/src/pages/ProjectPage.tsx

@@ -211,7 +211,7 @@ function ProjectPage() {
           </div>
         </div>
         <div className="page-header__actions">
-          {canAdmin && (
+          {canAdmin && !project.team_id && (
             <button
               className="btn btn-secondary"
               onClick={() => navigate(`/project/${projectName}/settings`)}

frontend/src/pages/ProjectSettingsPage.tsx

@@ -10,7 +10,6 @@ import {
   ForbiddenError,
 } from '../api';
 import { Breadcrumb } from '../components/Breadcrumb';
-import { AccessManagement } from '../components/AccessManagement';
 import { useAuth } from '../contexts/AuthContext';
 import './ProjectSettingsPage.css';
 
@@ -236,9 +235,6 @@ function ProjectSettingsPage() {
         </form>
       </div>
 
-      {/* Access Management Section */}
-      <AccessManagement projectName={projectName!} />
-
       {/* Danger Zone Section */}
       <div className="project-settings-danger-zone">
         <h2>Danger Zone</h2>

frontend/src/pages/TeamDashboardPage.css

@@ -3,10 +3,18 @@
 }
 
 .team-header {
-  margin-bottom: 1.5rem;
+  display: flex;
+  justify-content: space-between;
+  align-items: flex-start;
+  gap: 1.5rem;
+  margin-bottom: 2rem;
 }
 
-.team-header-info {
+.team-header-left {
+  flex: 1;
+}
+
+.team-header-title {
   display: flex;
   align-items: center;
   gap: 0.75rem;
@@ -15,57 +23,26 @@
 
 .team-header h1 {
   margin: 0;
-  font-size: 1.75rem;
-}
-
-.team-description {
-  margin: 0 0 0.5rem;
-  color: var(--color-text-secondary);
-  font-size: 1rem;
-  max-width: 600px;
-}
-
-.team-meta {
-  display: flex;
-  align-items: center;
-  gap: 1rem;
+  font-size: 1.5rem;
+  font-weight: 600;
 }
 
 .team-slug {
   font-size: 0.875rem;
-  color: var(--color-text-muted);
+  color: var(--text-muted);
 }
 
-.team-stats {
+.team-description {
+  margin: 0 0 0.5rem;
+  color: var(--text-secondary);
+  font-size: 0.9375rem;
+  max-width: 600px;
+}
+
+.team-header-actions {
   display: flex;
-  gap: 1rem;
-  margin-bottom: 1.5rem;
-}
-
-.stat-card {
-  background: var(--color-bg-secondary);
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-md);
-  padding: 1rem 1.5rem;
-  min-width: 120px;
-}
-
-.stat-value {
-  font-size: 1.5rem;
-  font-weight: 600;
-  color: var(--color-text);
-}
-
-.stat-label {
-  font-size: 0.8125rem;
-  color: var(--color-text-muted);
-  margin-top: 0.25rem;
-}
-
-.team-actions {
-  display: flex;
-  gap: 0.75rem;
-  margin-bottom: 2rem;
+  gap: 0.5rem;
+  flex-shrink: 0;
 }
 
 .team-section {
@@ -84,54 +61,23 @@
   font-size: 1.25rem;
 }
 
-.projects-grid {
-  display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
-  gap: 1rem;
+/* Table utility classes */
+.text-muted {
+  color: var(--text-muted);
 }
 
-.project-card {
-  background: var(--color-bg-secondary);
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-md);
-  padding: 1rem;
+.btn-ghost {
+  background: transparent;
+  color: var(--text-muted);
+  border: none;
+  padding: 0.375rem;
   cursor: pointer;
-  transition: all 0.15s ease;
+  border-radius: var(--radius-sm);
 }
 
-.project-card:hover {
-  border-color: var(--color-border-hover);
-  box-shadow: var(--shadow-sm);
-}
-
-.project-card-header {
-  display: flex;
-  justify-content: space-between;
-  align-items: flex-start;
-  gap: 0.75rem;
-  margin-bottom: 0.5rem;
-}
-
-.project-card-header h3 {
-  margin: 0;
-  font-size: 1rem;
-  font-weight: 600;
-}
-
-.project-card-description {
-  margin: 0 0 0.75rem;
-  font-size: 0.875rem;
-  color: var(--color-text-secondary);
-  line-height: 1.4;
-  display: -webkit-box;
-  -webkit-line-clamp: 2;
-  -webkit-box-orient: vertical;
-  overflow: hidden;
-}
-
-.project-card-meta {
-  font-size: 0.8125rem;
-  color: var(--color-text-muted);
+.btn-ghost:hover {
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
 }
 
 .section-footer {
@@ -141,7 +87,7 @@
 
 .view-all-link {
   font-size: 0.875rem;
-  color: var(--color-primary);
+  color: var(--accent-primary);
   text-decoration: none;
 }
 
@@ -162,16 +108,16 @@
 
 .error-state p {
   margin: 0 0 1.5rem;
-  color: var(--color-text-muted);
+  color: var(--text-muted);
 }
 
 .empty-state {
   text-align: center;
   padding: 2rem;
-  background: var(--color-bg-secondary);
-  border: 1px dashed var(--color-border);
+  background: var(--bg-secondary);
+  border: 1px dashed var(--border-primary);
   border-radius: var(--radius-md);
-  color: var(--color-text-muted);
+  color: var(--text-muted);
 }
 
 .empty-state p {
@@ -204,29 +150,29 @@
 }
 
 .btn-primary {
-  background: var(--color-primary);
+  background: var(--accent-primary);
   color: white;
 }
 
 .btn-primary:hover {
-  background: var(--color-primary-hover);
+  background: var(--accent-primary-hover);
 }
 
 .btn-secondary {
-  background: var(--color-bg-secondary);
-  color: var(--color-text);
-  border: 1px solid var(--color-border);
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
+  border: 1px solid var(--border-primary);
 }
 
 .btn-secondary:hover {
-  background: var(--color-bg-tertiary);
+  background: var(--bg-hover);
 }
 
 /* Modal */
 .modal-overlay {
   position: fixed;
   inset: 0;
-  background: rgba(0, 0, 0, 0.5);
+  background: rgba(0, 0, 0, 0.7);
   display: flex;
   align-items: center;
   justify-content: center;
@@ -235,18 +181,21 @@
 }
 
 .modal-content {
-  background: var(--color-bg);
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-lg);
   padding: 1.5rem;
   width: 100%;
   max-width: 480px;
   max-height: 90vh;
+  box-shadow: var(--shadow-lg);
   overflow-y: auto;
 }
 
 .modal-content h2 {
   margin: 0 0 1.5rem;
   font-size: 1.25rem;
+  color: var(--text-primary);
 }
 
 /* Form */
@@ -259,24 +208,25 @@
   margin-bottom: 0.5rem;
   font-weight: 500;
   font-size: 0.875rem;
+  color: var(--text-primary);
 }
 
 .form-group input[type="text"],
 .form-group textarea {
   width: 100%;
   padding: 0.625rem 0.75rem;
-  border: 1px solid var(--color-border);
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-md);
-  background: var(--color-bg);
-  color: var(--color-text);
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
   font-size: 0.875rem;
 }
 
 .form-group input:focus,
 .form-group textarea:focus {
   outline: none;
-  border-color: var(--color-primary);
-  box-shadow: 0 0 0 3px var(--color-primary-alpha);
+  border-color: var(--accent-primary);
+  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
 }
 
 .form-group textarea {
@@ -299,7 +249,7 @@
 .form-hint {
   display: block;
   font-size: 0.8125rem;
-  color: var(--color-text-muted);
+  color: var(--text-muted);
   margin-top: 0.375rem;
 }
 

frontend/src/pages/TeamDashboardPage.tsx

@@ -5,6 +5,7 @@ import { getTeam, listTeamProjects, createProject } from '../api';
 import { useAuth } from '../contexts/AuthContext';
 import { Badge } from '../components/Badge';
 import { Breadcrumb } from '../components/Breadcrumb';
+import { DataTable } from '../components/DataTable';
 import './TeamDashboardPage.css';
 
 function TeamDashboardPage() {
@@ -95,54 +96,42 @@ function TeamDashboardPage() {
       />
 
       <div className="team-header">
-        <div className="team-header-info">
-          <h1>{team.name}</h1>
-          {team.user_role && (
-            <Badge variant={roleVariants[team.user_role] || 'default'}>
-              {team.user_role}
-            </Badge>
+        <div className="team-header-left">
+          <div className="team-header-title">
+            <h1>{team.name}</h1>
+            {team.user_role && (
+              <Badge variant={roleVariants[team.user_role] || 'default'}>
+                {team.user_role}
+              </Badge>
+            )}
+            <span className="team-slug">@{team.slug}</span>
+          </div>
+          {team.description && (
+            <p className="team-description">{team.description}</p>
           )}
         </div>
-        {team.description && (
-          <p className="team-description">{team.description}</p>
+        {isAdminOrOwner && (
+          <div className="team-header-actions">
+            <Link to={`/teams/${slug}/members`} className="btn btn-secondary">
+              <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+                <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"/>
+                <circle cx="9" cy="7" r="4"/>
+                <path d="M23 21v-2a4 4 0 0 0-3-3.87"/>
+                <path d="M16 3.13a4 4 0 0 1 0 7.75"/>
+              </svg>
+              Members
+            </Link>
+            <Link to={`/teams/${slug}/settings`} className="btn btn-secondary">
+              <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+                <circle cx="12" cy="12" r="3"/>
+                <path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06a1.65 1.65 0 0 0 .33-1.82 1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06a1.65 1.65 0 0 0-.33 1.82V9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z"/>
+              </svg>
+              Settings
+            </Link>
+          </div>
         )}
-        <div className="team-meta">
-          <span className="team-slug">@{team.slug}</span>
-        </div>
       </div>
 
-      <div className="team-stats">
-        <div className="stat-card">
-          <div className="stat-value">{team.project_count}</div>
-          <div className="stat-label">Projects</div>
-        </div>
-        <div className="stat-card">
-          <div className="stat-value">{team.member_count}</div>
-          <div className="stat-label">Members</div>
-        </div>
-      </div>
-
-      {isAdminOrOwner && (
-        <div className="team-actions">
-          <Link to={`/teams/${slug}/settings`} className="btn btn-secondary">
-            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
-              <circle cx="12" cy="12" r="3"/>
-              <path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06a1.65 1.65 0 0 0 .33-1.82 1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06a1.65 1.65 0 0 0-.33 1.82V9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z"/>
-            </svg>
-            Settings
-          </Link>
-          <Link to={`/teams/${slug}/members`} className="btn btn-secondary">
-            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
-              <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"/>
-              <circle cx="9" cy="7" r="4"/>
-              <path d="M23 21v-2a4 4 0 0 0-3-3.87"/>
-              <path d="M16 3.13a4 4 0 0 1 0 7.75"/>
-            </svg>
-            Members
-          </Link>
-        </div>
-      )}
-
       {showProjectForm && (
         <div className="modal-overlay" onClick={() => setShowProjectForm(false)}>
           <div className="modal-content" onClick={e => e.stopPropagation()}>
@@ -214,28 +203,65 @@ function TeamDashboardPage() {
             )}
           </div>
         ) : (
-          <div className="projects-grid">
-            {projects?.items.map(project => (
-              <div
-                key={project.id}
-                className="project-card"
-                onClick={() => navigate(`/project/${project.name}`)}
-              >
-                <div className="project-card-header">
-                  <h3>{project.name}</h3>
+          <DataTable
+            data={projects?.items || []}
+            keyExtractor={(project) => project.id}
+            onRowClick={(project) => navigate(`/project/${project.name}`)}
+            columns={[
+              {
+                key: 'name',
+                header: 'Name',
+                render: (project) => (
+                  <Link
+                    to={`/project/${project.name}`}
+                    className="cell-name"
+                    onClick={(e) => e.stopPropagation()}
+                  >
+                    {project.name}
+                  </Link>
+                ),
+              },
+              {
+                key: 'description',
+                header: 'Description',
+                className: 'cell-description',
+                render: (project) => project.description || <span className="text-muted">—</span>,
+              },
+              {
+                key: 'visibility',
+                header: 'Visibility',
+                render: (project) => (
                   <Badge variant={project.is_public ? 'public' : 'private'}>
                     {project.is_public ? 'Public' : 'Private'}
                   </Badge>
-                </div>
-                {project.description && (
-                  <p className="project-card-description">{project.description}</p>
-                )}
-                <div className="project-card-meta">
-                  <span>Created by {project.created_by}</span>
-                </div>
-              </div>
-            ))}
-          </div>
+                ),
+              },
+              {
+                key: 'created_by',
+                header: 'Created By',
+                render: (project) => <span className="text-muted">{project.created_by}</span>,
+              },
+              ...(isAdminOrOwner ? [{
+                key: 'actions',
+                header: '',
+                render: (project: Project) => (
+                  <button
+                    className="btn btn-sm btn-ghost"
+                    onClick={(e) => {
+                      e.stopPropagation();
+                      navigate(`/project/${project.name}/settings`);
+                    }}
+                    title="Settings"
+                  >
+                    <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+                      <circle cx="12" cy="12" r="3"/>
+                      <path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06a1.65 1.65 0 0 0 .33-1.82 1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06a1.65 1.65 0 0 0-.33 1.82V9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z"/>
+                    </svg>
+                  </button>
+                ),
+              }] : []),
+            ]}
+          />
         )}
 
         {projects && projects.pagination.total > 10 && (

frontend/src/pages/TeamMembersPage.css

@@ -1,6 +1,7 @@
 .team-members {
   padding: 1.5rem 0;
   max-width: 800px;
+  margin: 0 auto;
 }
 
 .page-header {
@@ -16,41 +17,18 @@
   font-size: 1.75rem;
 }
 
-/* Members list */
-.members-list {
-  display: flex;
-  flex-direction: column;
-  gap: 0.5rem;
-}
-
-.member-card {
-  display: flex;
-  justify-content: space-between;
-  align-items: center;
-  padding: 1rem;
-  background: var(--color-bg-secondary);
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-md);
-  gap: 1rem;
-}
-
-.member-card.current-user {
-  background: var(--color-primary-bg);
-  border-color: var(--color-primary-border, var(--color-border));
-}
-
-.member-info {
+/* Member cell in table */
+.member-cell {
   display: flex;
   align-items: center;
   gap: 0.75rem;
-  min-width: 0;
 }
 
 .member-avatar {
   width: 40px;
   height: 40px;
   border-radius: 50%;
-  background: var(--color-primary);
+  background: var(--accent-primary);
   color: white;
   display: flex;
   align-items: center;
@@ -76,37 +54,34 @@
 .you-badge {
   font-size: 0.75rem;
   font-weight: normal;
-  color: var(--color-text-muted);
+  color: var(--text-muted);
 }
 
 .member-email {
   font-size: 0.8125rem;
-  color: var(--color-text-muted);
+  color: var(--text-muted);
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
 
-.member-actions {
-  display: flex;
-  align-items: center;
-  gap: 0.5rem;
-  flex-shrink: 0;
+.text-muted {
+  color: var(--text-muted);
 }
 
 .role-select {
   padding: 0.375rem 0.75rem;
-  border: 1px solid var(--color-border);
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-md);
   font-size: 0.875rem;
-  background: var(--color-bg);
-  color: var(--color-text);
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
   cursor: pointer;
 }
 
 .role-select:focus {
   outline: none;
-  border-color: var(--color-primary);
+  border-color: var(--accent-primary);
 }
 
 /* Messages */
@@ -116,10 +91,10 @@
   justify-content: space-between;
   padding: 0.75rem 1rem;
   margin-bottom: 1rem;
-  background: var(--color-error-bg, #fef2f2);
-  border: 1px solid var(--color-error-border, #fecaca);
+  background: var(--error-bg);
+  border: 1px solid var(--error);
   border-radius: var(--radius-md);
-  color: var(--color-error, #dc2626);
+  color: var(--error);
   font-size: 0.875rem;
 }
 
@@ -146,7 +121,7 @@
 
 .error-state p {
   margin: 0 0 1.5rem;
-  color: var(--color-text-muted);
+  color: var(--text-muted);
 }
 
 /* Modal */
@@ -156,7 +131,7 @@
   left: 0;
   right: 0;
   bottom: 0;
-  background: rgba(0, 0, 0, 0.5);
+  background: rgba(0, 0, 0, 0.7);
   display: flex;
   align-items: center;
   justify-content: center;
@@ -165,17 +140,19 @@
 }
 
 .modal-content {
-  background: var(--color-bg);
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-lg);
   padding: 1.5rem;
   width: 100%;
   max-width: 400px;
-  box-shadow: var(--shadow-xl);
+  box-shadow: var(--shadow-lg);
 }
 
 .modal-content h2 {
   margin: 0 0 1.5rem;
   font-size: 1.25rem;
+  color: var(--text-primary);
 }
 
 /* Form */
@@ -188,24 +165,25 @@
   margin-bottom: 0.375rem;
   font-weight: 500;
   font-size: 0.875rem;
+  color: var(--text-primary);
 }
 
 .form-group input,
 .form-group select {
   width: 100%;
   padding: 0.5rem 0.75rem;
-  border: 1px solid var(--color-border);
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-md);
   font-size: 0.9375rem;
-  background: var(--color-bg);
-  color: var(--color-text);
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
 }
 
 .form-group input:focus,
 .form-group select:focus {
   outline: none;
-  border-color: var(--color-primary);
-  box-shadow: 0 0 0 2px var(--color-primary-bg);
+  border-color: var(--accent-primary);
+  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
 }
 
 .form-actions {
@@ -236,22 +214,22 @@
 }
 
 .btn-primary {
-  background: var(--color-primary);
+  background: var(--accent-primary);
   color: white;
 }
 
 .btn-primary:hover:not(:disabled) {
-  background: var(--color-primary-hover);
+  background: var(--accent-primary-hover);
 }
 
 .btn-secondary {
-  background: var(--color-bg-secondary);
-  color: var(--color-text);
-  border: 1px solid var(--color-border);
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
+  border: 1px solid var(--border-primary);
 }
 
 .btn-secondary:hover:not(:disabled) {
-  background: var(--color-bg-tertiary);
+  background: var(--bg-hover);
 }
 
 .btn-icon {
@@ -260,10 +238,10 @@
 
 .btn-danger-ghost {
   background: transparent;
-  color: var(--color-text-muted);
+  color: var(--text-muted);
 }
 
 .btn-danger-ghost:hover:not(:disabled) {
-  background: var(--color-error-bg, #fef2f2);
-  color: var(--color-error, #dc2626);
+  background: var(--error-bg);
+  color: var(--error);
 }

frontend/src/pages/TeamMembersPage.tsx

@@ -11,6 +11,8 @@ import {
 import { useAuth } from '../contexts/AuthContext';
 import { Badge } from '../components/Badge';
 import { Breadcrumb } from '../components/Breadcrumb';
+import { DataTable } from '../components/DataTable';
+import { UserAutocomplete } from '../components/UserAutocomplete';
 import './TeamMembersPage.css';
 
 function TeamMembersPage() {
@@ -166,13 +168,10 @@ function TeamMembersPage() {
             <form onSubmit={handleAddMember}>
               <div className="form-group">
                 <label htmlFor="username">Username</label>
-                <input
-                  id="username"
-                  type="text"
+                <UserAutocomplete
                   value={newMember.username}
-                  onChange={e => setNewMember({ ...newMember, username: e.target.value })}
-                  placeholder="Enter username"
-                  required
+                  onChange={(username) => setNewMember({ ...newMember, username })}
+                  placeholder="Search for a user..."
                   autoFocus
                 />
               </div>
@@ -203,34 +202,49 @@ function TeamMembersPage() {
         </div>
       )}
 
-      <div className="members-list">
-        {members.map(member => {
-          const isCurrentUser = user?.username === member.username;
-          const canModify = isAdmin && !isCurrentUser && (isOwner || member.role !== 'owner');
+      <DataTable
+        data={members}
+        keyExtractor={(member) => member.id}
+        emptyMessage="No members in this team yet."
+        columns={[
+          {
+            key: 'member',
+            header: 'Member',
+            render: (member) => {
+              const isCurrentUser = user?.username === member.username;
+              return (
+                <div className="member-cell">
+                  <div className="member-avatar">
+                    {member.username.charAt(0).toUpperCase()}
+                  </div>
+                  <div className="member-details">
+                    <span className="member-username">
+                      {member.username}
+                      {isCurrentUser && <span className="you-badge">(you)</span>}
+                    </span>
+                    {member.email && (
+                      <span className="member-email">{member.email}</span>
+                    )}
+                  </div>
+                </div>
+              );
+            },
+          },
+          {
+            key: 'role',
+            header: 'Role',
+            render: (member) => {
+              const isCurrentUser = user?.username === member.username;
+              const canModify = isAdmin && !isCurrentUser && (isOwner || member.role !== 'owner');
 
-          return (
-            <div key={member.id} className={`member-card ${isCurrentUser ? 'current-user' : ''}`}>
-              <div className="member-info">
-                <div className="member-avatar">
-                  {member.username.charAt(0).toUpperCase()}
-                </div>
-                <div className="member-details">
-                  <span className="member-username">
-                    {member.username}
-                    {isCurrentUser && <span className="you-badge">(you)</span>}
-                  </span>
-                  {member.email && (
-                    <span className="member-email">{member.email}</span>
-                  )}
-                </div>
-              </div>
-              <div className="member-actions">
-                {canModify ? (
+              if (canModify) {
+                return (
                   <select
                     value={member.role}
                     onChange={e => handleRoleChange(member.username, e.target.value as TeamRole)}
                     disabled={editingMember === member.username}
                     className="role-select"
+                    onClick={e => e.stopPropagation()}
                   >
                     {roles.map(role => (
                       <option
@@ -242,30 +256,54 @@ function TeamMembersPage() {
                       </option>
                     ))}
                   </select>
-                ) : (
-                  <Badge variant={roleVariants[member.role] || 'default'}>
-                    {member.role}
-                  </Badge>
-                )}
-                {canModify && (
-                  <button
-                    className="btn btn-icon btn-danger-ghost"
-                    onClick={() => handleRemoveMember(member.username)}
-                    disabled={removingMember === member.username}
-                    title="Remove member"
-                  >
-                    <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
-                      <path d="M3 6h18"/>
-                      <path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6"/>
-                      <path d="M8 6V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/>
-                    </svg>
-                  </button>
-                )}
-              </div>
-            </div>
-          );
-        })}
-      </div>
+                );
+              }
+              return (
+                <Badge variant={roleVariants[member.role] || 'default'}>
+                  {member.role}
+                </Badge>
+              );
+            },
+          },
+          {
+            key: 'joined',
+            header: 'Joined',
+            render: (member) => (
+              <span className="text-muted">
+                {new Date(member.created_at).toLocaleDateString()}
+              </span>
+            ),
+          },
+          ...(isAdmin ? [{
+            key: 'actions',
+            header: '',
+            render: (member: TeamMember) => {
+              const isCurrentUser = user?.username === member.username;
+              const canModify = isAdmin && !isCurrentUser && (isOwner || member.role !== 'owner');
+
+              if (!canModify) return null;
+
+              return (
+                <button
+                  className="btn btn-icon btn-danger-ghost"
+                  onClick={(e) => {
+                    e.stopPropagation();
+                    handleRemoveMember(member.username);
+                  }}
+                  disabled={removingMember === member.username}
+                  title="Remove member"
+                >
+                  <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+                    <path d="M3 6h18"/>
+                    <path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6"/>
+                    <path d="M8 6V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/>
+                  </svg>
+                </button>
+              );
+            },
+          }] : []),
+        ]}
+      />
     </div>
   );
 }

frontend/src/pages/TeamSettingsPage.css

@@ -1,6 +1,7 @@
 .team-settings {
   padding: 1.5rem 0;
   max-width: 640px;
+  margin: 0 auto;
 }
 
 .team-settings h1 {
@@ -13,8 +14,8 @@
 }
 
 .form-section {
-  background: var(--color-bg-secondary);
-  border: 1px solid var(--color-border);
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-lg);
   padding: 1.5rem;
   margin-bottom: 1.5rem;
@@ -23,6 +24,7 @@
 .form-section h2 {
   margin: 0 0 1rem;
   font-size: 1.125rem;
+  color: var(--text-primary);
 }
 
 .form-group {
@@ -34,29 +36,30 @@
   margin-bottom: 0.375rem;
   font-weight: 500;
   font-size: 0.875rem;
+  color: var(--text-primary);
 }
 
 .form-group input,
 .form-group textarea {
   width: 100%;
   padding: 0.5rem 0.75rem;
-  border: 1px solid var(--color-border);
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-md);
   font-size: 0.9375rem;
-  background: var(--color-bg);
-  color: var(--color-text);
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
 }
 
 .form-group input:focus,
 .form-group textarea:focus {
   outline: none;
-  border-color: var(--color-primary);
-  box-shadow: 0 0 0 2px var(--color-primary-bg);
+  border-color: var(--accent-primary);
+  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
 }
 
 .input-disabled {
-  background: var(--color-bg-tertiary) !important;
-  color: var(--color-text-muted) !important;
+  background: var(--bg-elevated) !important;
+  color: var(--text-muted) !important;
   cursor: not-allowed;
 }
 
@@ -64,23 +67,23 @@
   display: block;
   margin-top: 0.25rem;
   font-size: 0.8125rem;
-  color: var(--color-text-muted);
+  color: var(--text-muted);
 }
 
 /* Danger zone */
 .danger-zone {
-  border-color: var(--color-error-border, #fecaca);
-  background: var(--color-error-bg, #fef2f2);
+  border-color: var(--error);
+  background: var(--error-bg);
 }
 
 .danger-zone h2 {
-  color: var(--color-error, #dc2626);
+  color: var(--error);
 }
 
 .danger-warning {
   margin: 0 0 1rem;
   font-size: 0.875rem;
-  color: var(--color-text-secondary);
+  color: var(--text-secondary);
 }
 
 /* Messages */
@@ -90,10 +93,10 @@
   justify-content: space-between;
   padding: 0.75rem 1rem;
   margin-bottom: 1rem;
-  background: var(--color-error-bg, #fef2f2);
-  border: 1px solid var(--color-error-border, #fecaca);
+  background: var(--error-bg);
+  border: 1px solid var(--error);
   border-radius: var(--radius-md);
-  color: var(--color-error, #dc2626);
+  color: var(--error);
   font-size: 0.875rem;
 }
 
@@ -110,10 +113,10 @@
 .success-message {
   padding: 0.75rem 1rem;
   margin-bottom: 1rem;
-  background: var(--color-success-bg, #f0fdf4);
-  border: 1px solid var(--color-success-border, #86efac);
+  background: var(--success-bg);
+  border: 1px solid var(--success);
   border-radius: var(--radius-md);
-  color: var(--color-success, #16a34a);
+  color: var(--success);
   font-size: 0.875rem;
 }
 
@@ -130,7 +133,7 @@
 
 .error-state p {
   margin: 0 0 1.5rem;
-  color: var(--color-text-muted);
+  color: var(--text-muted);
 }
 
 /* Modal */
@@ -140,7 +143,7 @@
   left: 0;
   right: 0;
   bottom: 0;
-  background: rgba(0, 0, 0, 0.5);
+  background: rgba(0, 0, 0, 0.7);
   display: flex;
   align-items: center;
   justify-content: center;
@@ -149,33 +152,36 @@
 }
 
 .modal-content {
-  background: var(--color-bg);
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-lg);
   padding: 1.5rem;
   width: 100%;
   max-width: 400px;
-  box-shadow: var(--shadow-xl);
+  box-shadow: var(--shadow-lg);
 }
 
 .modal-content h2 {
   margin: 0 0 1rem;
   font-size: 1.25rem;
-  color: var(--color-error, #dc2626);
+  color: var(--error);
 }
 
 .modal-content p {
   margin: 0 0 1rem;
   font-size: 0.9375rem;
-  color: var(--color-text-secondary);
+  color: var(--text-secondary);
 }
 
 .delete-confirm-input {
   width: 100%;
   padding: 0.5rem 0.75rem;
-  border: 1px solid var(--color-border);
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-md);
   font-size: 0.9375rem;
   margin-bottom: 1rem;
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
 }
 
 .form-actions {
@@ -205,26 +211,26 @@
 }
 
 .btn-primary {
-  background: var(--color-primary);
+  background: var(--accent-primary);
   color: white;
 }
 
 .btn-primary:hover:not(:disabled) {
-  background: var(--color-primary-hover);
+  background: var(--accent-primary-hover);
 }
 
 .btn-secondary {
-  background: var(--color-bg-secondary);
-  color: var(--color-text);
-  border: 1px solid var(--color-border);
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
+  border: 1px solid var(--border-primary);
 }
 
 .btn-secondary:hover:not(:disabled) {
-  background: var(--color-bg-tertiary);
+  background: var(--bg-hover);
 }
 
 .btn-danger {
-  background: var(--color-error, #dc2626);
+  background: var(--error);
   color: white;
 }
 

frontend/src/pages/TeamsPage.css

@@ -1,102 +1,95 @@
 .teams-page {
   padding: 1.5rem 0;
+  max-width: 1200px;
+  margin: 0 auto;
 }
 
-.page-header {
+/* Header */
+.teams-header {
   display: flex;
   justify-content: space-between;
-  align-items: flex-start;
+  align-items: center;
   margin-bottom: 1.5rem;
   gap: 1rem;
 }
 
-.page-header h1 {
+.teams-header h1 {
   margin: 0;
-  font-size: 1.75rem;
+  font-size: 1.5rem;
+  font-weight: 600;
 }
 
-.page-subtitle {
-  margin: 0.25rem 0 0;
-  color: var(--color-text-muted);
-  font-size: 0.9375rem;
+/* Search */
+.teams-search {
+  position: relative;
+  margin-bottom: 1.5rem;
 }
 
-.team-name-cell {
-  display: flex;
-  flex-direction: column;
-  gap: 0.125rem;
+.teams-search__icon {
+  position: absolute;
+  left: 0.875rem;
+  top: 50%;
+  transform: translateY(-50%);
+  color: var(--text-muted);
+  pointer-events: none;
 }
 
-.team-name-link {
-  font-weight: 500;
-  color: var(--color-text);
-  text-decoration: none;
-}
-
-.team-name-link:hover {
-  color: var(--color-primary);
-}
-
-.team-slug {
-  font-size: 0.8125rem;
-  color: var(--color-text-muted);
-}
-
-.team-description {
-  color: var(--color-text-secondary);
+.teams-search__input {
+  width: 100%;
+  padding: 0.625rem 2.5rem 0.625rem 2.75rem;
+  border: 1px solid var(--border-primary);
+  border-radius: var(--radius-md);
+  background: var(--bg-primary);
+  color: var(--text-primary);
   font-size: 0.875rem;
-  max-width: 300px;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
 }
 
-/* Empty state */
-.empty-state {
-  text-align: center;
-  padding: 4rem 2rem;
-  background: var(--color-bg-secondary);
-  border-radius: var(--radius-lg);
-  border: 1px solid var(--color-border);
+.teams-search__input:focus {
+  outline: none;
+  border-color: var(--accent-primary);
+  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
 }
 
-.empty-state svg {
-  color: var(--color-text-muted);
-  margin-bottom: 1rem;
+.teams-search__input::placeholder {
+  color: var(--text-muted);
 }
 
-.empty-state h2 {
-  margin: 0 0 0.5rem;
-  font-size: 1.25rem;
+.teams-search__clear {
+  position: absolute;
+  right: 0.5rem;
+  top: 50%;
+  transform: translateY(-50%);
+  background: none;
+  border: none;
+  padding: 0.375rem;
+  cursor: pointer;
+  color: var(--text-muted);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: var(--radius-sm);
 }
 
-.empty-state p {
-  margin: 0 0 1.5rem;
-  color: var(--color-text-muted);
+.teams-search__clear:hover {
+  color: var(--text-primary);
+  background: var(--bg-secondary);
 }
 
-/* Loading state */
-.loading-state {
-  text-align: center;
-  padding: 4rem 2rem;
-  color: var(--color-text-muted);
-}
-
-/* Error message */
-.error-message {
+/* Error */
+.teams-error {
   display: flex;
   align-items: center;
   justify-content: space-between;
   padding: 0.75rem 1rem;
   margin-bottom: 1rem;
-  background: var(--color-error-bg, #fef2f2);
-  border: 1px solid var(--color-error-border, #fecaca);
+  background: var(--error-bg);
+  border: 1px solid var(--error);
   border-radius: var(--radius-md);
-  color: var(--color-error, #dc2626);
+  color: var(--error);
   font-size: 0.875rem;
 }
 
-.error-dismiss {
+.teams-error__dismiss {
   background: none;
   border: none;
   font-size: 1.25rem;
@@ -106,6 +99,88 @@
   line-height: 1;
 }
 
+/* Loading */
+.teams-loading {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 1rem;
+  padding: 4rem 2rem;
+  color: var(--text-muted);
+}
+
+.teams-loading__spinner {
+  width: 32px;
+  height: 32px;
+  border: 3px solid var(--border-primary);
+  border-top-color: var(--accent-primary);
+  border-radius: 50%;
+  animation: teams-spin 0.8s linear infinite;
+}
+
+@keyframes teams-spin {
+  to { transform: rotate(360deg); }
+}
+
+/* Empty State */
+.teams-empty-state {
+  text-align: center;
+  padding: 4rem 2rem;
+  background: var(--bg-secondary);
+  border-radius: var(--radius-lg);
+  border: 1px solid var(--border-primary);
+}
+
+.teams-empty-icon {
+  color: var(--text-muted);
+  margin-bottom: 1rem;
+}
+
+.teams-empty-state h2 {
+  margin: 0 0 0.5rem;
+  font-size: 1.25rem;
+}
+
+.teams-empty-state p {
+  margin: 0 0 1.5rem;
+  color: var(--text-muted);
+}
+
+/* Table cell styles */
+
+.team-name-cell {
+  display: flex;
+  flex-direction: column;
+  gap: 0.125rem;
+}
+
+.team-name-link {
+  font-weight: 500;
+  color: var(--text-primary);
+  text-decoration: none;
+}
+
+.team-name-link:hover {
+  color: var(--accent-primary);
+}
+
+.team-slug {
+  font-size: 0.8125rem;
+  color: var(--text-muted);
+}
+
+.team-description-cell {
+  color: var(--text-secondary);
+  max-width: 300px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.text-muted {
+  color: var(--text-muted);
+}
+
 /* Modal */
 .modal-overlay {
   position: fixed;
@@ -113,7 +188,7 @@
   left: 0;
   right: 0;
   bottom: 0;
-  background: rgba(0, 0, 0, 0.5);
+  background: rgba(0, 0, 0, 0.7);
   display: flex;
   align-items: center;
   justify-content: center;
@@ -122,17 +197,47 @@
 }
 
 .modal-content {
-  background: var(--color-bg);
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-lg);
-  padding: 1.5rem;
   width: 100%;
   max-width: 480px;
-  box-shadow: var(--shadow-xl);
+  box-shadow: var(--shadow-lg);
+  overflow: hidden;
 }
 
-.modal-content h2 {
-  margin: 0 0 1.5rem;
-  font-size: 1.25rem;
+.modal-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 1.25rem 1.5rem;
+  border-bottom: 1px solid var(--border-primary);
+}
+
+.modal-header h2 {
+  margin: 0;
+  font-size: 1.125rem;
+  font-weight: 600;
+  color: var(--text-primary);
+}
+
+.modal-close {
+  background: none;
+  border: none;
+  padding: 0.25rem;
+  cursor: pointer;
+  color: var(--text-muted);
+  display: flex;
+  border-radius: var(--radius-sm);
+}
+
+.modal-close:hover {
+  color: var(--text-primary);
+  background: var(--bg-hover);
+}
+
+.modal-content form {
+  padding: 1.5rem;
 }
 
 /* Form */
@@ -145,31 +250,58 @@
   margin-bottom: 0.375rem;
   font-weight: 500;
   font-size: 0.875rem;
+  color: var(--text-primary);
+}
+
+.form-group .optional {
+  font-weight: 400;
+  color: var(--text-muted);
 }
 
 .form-group input,
 .form-group textarea {
   width: 100%;
-  padding: 0.5rem 0.75rem;
-  border: 1px solid var(--color-border);
+  padding: 0.625rem 0.75rem;
+  border: 1px solid var(--border-primary);
   border-radius: var(--radius-md);
-  font-size: 0.9375rem;
-  background: var(--color-bg);
-  color: var(--color-text);
+  font-size: 0.875rem;
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
 }
 
 .form-group input:focus,
 .form-group textarea:focus {
   outline: none;
-  border-color: var(--color-primary);
-  box-shadow: 0 0 0 2px var(--color-primary-bg);
+  border-color: var(--accent-primary);
+  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
+}
+
+.input-with-prefix {
+  display: flex;
+  align-items: stretch;
+}
+
+.input-prefix {
+  display: flex;
+  align-items: center;
+  padding: 0 0.75rem;
+  background: var(--bg-elevated);
+  border: 1px solid var(--border-primary);
+  border-right: none;
+  border-radius: var(--radius-md) 0 0 var(--radius-md);
+  color: var(--text-muted);
+  font-size: 0.875rem;
+}
+
+.input-with-prefix input {
+  border-radius: 0 var(--radius-md) var(--radius-md) 0;
 }
 
 .form-hint {
   display: block;
   margin-top: 0.25rem;
-  font-size: 0.8125rem;
-  color: var(--color-text-muted);
+  font-size: 0.75rem;
+  color: var(--text-muted);
 }
 
 .form-actions {
@@ -177,6 +309,8 @@
   justify-content: flex-end;
   gap: 0.75rem;
   margin-top: 1.5rem;
+  padding-top: 1rem;
+  border-top: 1px solid var(--border-primary);
 }
 
 /* Buttons */
@@ -199,20 +333,44 @@
 }
 
 .btn-primary {
-  background: var(--color-primary);
+  background: var(--accent-primary);
   color: white;
 }
 
 .btn-primary:hover:not(:disabled) {
-  background: var(--color-primary-hover);
+  background: var(--accent-primary-hover);
 }
 
 .btn-secondary {
-  background: var(--color-bg-secondary);
-  color: var(--color-text);
-  border: 1px solid var(--color-border);
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
+  border: 1px solid var(--border-primary);
 }
 
 .btn-secondary:hover:not(:disabled) {
-  background: var(--color-bg-tertiary);
+  background: var(--bg-hover);
+}
+
+/* Responsive */
+@media (max-width: 640px) {
+  .teams-header {
+    flex-direction: column;
+    align-items: stretch;
+  }
+
+  .teams-header .btn {
+    justify-content: center;
+  }
+
+  .teams-stats {
+    justify-content: space-around;
+  }
+
+  .teams-table-container {
+    overflow-x: auto;
+  }
+
+  .teams-table {
+    min-width: 600px;
+  }
 }

frontend/src/pages/TeamsPage.tsx

@@ -17,6 +17,7 @@ function TeamsPage() {
   const [newTeam, setNewTeam] = useState<TeamCreate>({ name: '', slug: '', description: '' });
   const [creating, setCreating] = useState(false);
   const [slugManuallySet, setSlugManuallySet] = useState(false);
+  const [searchQuery, setSearchQuery] = useState('');
 
   const loadTeams = useCallback(async () => {
     try {
@@ -65,16 +66,39 @@ function TeamsPage() {
     }
   }
 
-  const roleVariants: Record<string, 'success' | 'info' | 'default'> = {
-    owner: 'success',
-    admin: 'info',
-    member: 'default',
+  const closeModal = () => {
+    setShowForm(false);
+    setNewTeam({ name: '', slug: '', description: '' });
+    setSlugManuallySet(false);
+  };
+
+  // Filter teams by search
+  const filteredTeams = teamsData?.items.filter(team =>
+    team.name.toLowerCase().includes(searchQuery.toLowerCase()) ||
+    team.slug.toLowerCase().includes(searchQuery.toLowerCase()) ||
+    (team.description?.toLowerCase().includes(searchQuery.toLowerCase()))
+  ) || [];
+
+  const totalTeams = teamsData?.items.length || 0;
+
+  const roleConfig: Record<string, { variant: 'success' | 'info' | 'default'; label: string }> = {
+    owner: { variant: 'success', label: 'Owner' },
+    admin: { variant: 'info', label: 'Admin' },
+    member: { variant: 'default', label: 'Member' },
   };
 
   if (!user) {
     return (
       <div className="teams-page">
-        <div className="empty-state">
+        <div className="teams-empty-state">
+          <div className="teams-empty-icon">
+            <svg width="64" height="64" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.5">
+              <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"/>
+              <circle cx="9" cy="7" r="4"/>
+              <path d="M23 21v-2a4 4 0 0 0-3-3.87"/>
+              <path d="M16 3.13a4 4 0 0 1 0 7.75"/>
+            </svg>
+          </div>
           <h2>Sign in to view your teams</h2>
           <p>Teams help you organize projects and collaborate with others.</p>
           <Link to="/login" className="btn btn-primary">Sign In</Link>
@@ -83,76 +107,65 @@ function TeamsPage() {
     );
   }
 
-  const columns = [
-    {
-      key: 'name',
-      header: 'Team',
-      render: (team: TeamDetail) => (
-        <div className="team-name-cell">
-          <Link to={`/teams/${team.slug}`} className="team-name-link">
-            {team.name}
-          </Link>
-          <span className="team-slug">@{team.slug}</span>
-        </div>
-      ),
-    },
-    {
-      key: 'description',
-      header: 'Description',
-      render: (team: TeamDetail) => (
-        <span className="team-description">{team.description || '-'}</span>
-      ),
-    },
-    {
-      key: 'role',
-      header: 'Your Role',
-      render: (team: TeamDetail) => (
-        team.user_role ? (
-          <Badge variant={roleVariants[team.user_role] || 'default'}>
-            {team.user_role}
-          </Badge>
-        ) : null
-      ),
-    },
-    {
-      key: 'members',
-      header: 'Members',
-      render: (team: TeamDetail) => team.member_count,
-    },
-    {
-      key: 'projects',
-      header: 'Projects',
-      render: (team: TeamDetail) => team.project_count,
-    },
-  ];
-
   return (
     <div className="teams-page">
-      <div className="page-header">
-        <div>
-          <h1>Teams</h1>
-          <p className="page-subtitle">Organize projects and collaborate with others</p>
-        </div>
+      {/* Header */}
+      <div className="teams-header">
+        <h1>Teams</h1>
         <button className="btn btn-primary" onClick={() => setShowForm(true)}>
           <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
             <line x1="12" y1="5" x2="12" y2="19" />
             <line x1="5" y1="12" x2="19" y2="12" />
           </svg>
-          New Team
+          Create Team
         </button>
       </div>
 
-      {error && (
-        <div className="error-message">
-          {error}
-          <button onClick={() => setError(null)} className="error-dismiss">&times;</button>
+      {/* Search */}
+      {!loading && totalTeams > 3 && (
+        <div className="teams-search">
+          <svg className="teams-search__icon" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+            <circle cx="11" cy="11" r="8"/>
+            <line x1="21" y1="21" x2="16.65" y2="16.65"/>
+          </svg>
+          <input
+            type="text"
+            placeholder="Search teams..."
+            value={searchQuery}
+            onChange={(e) => setSearchQuery(e.target.value)}
+            className="teams-search__input"
+          />
+          {searchQuery && (
+            <button className="teams-search__clear" onClick={() => setSearchQuery('')}>
+              <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+                <line x1="18" y1="6" x2="6" y2="18"/>
+                <line x1="6" y1="6" x2="18" y2="18"/>
+              </svg>
+            </button>
+          )}
         </div>
       )}
 
+      {error && (
+        <div className="teams-error">
+          {error}
+          <button onClick={() => setError(null)} className="teams-error__dismiss">&times;</button>
+        </div>
+      )}
+
+      {/* Create Team Modal */}
       {showForm && (
-        <div className="modal-overlay" onClick={() => setShowForm(false)}>
+        <div className="modal-overlay" onClick={closeModal}>
           <div className="modal-content" onClick={e => e.stopPropagation()}>
-            <h2>Create New Team</h2>
+            <div className="modal-header">
+              <h2>Create New Team</h2>
+              <button className="modal-close" onClick={closeModal}>
+                <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+                  <line x1="18" y1="6" x2="6" y2="18"/>
+                  <line x1="6" y1="6" x2="18" y2="18"/>
+                </svg>
+              </button>
+            </div>
             <form onSubmit={handleCreateTeam}>
               <div className="form-group">
                 <label htmlFor="team-name">Team Name</label>
@@ -161,27 +174,30 @@ function TeamsPage() {
                   type="text"
                   value={newTeam.name}
                   onChange={e => handleNameChange(e.target.value)}
-                  placeholder="My Team"
+                  placeholder="Engineering"
                   required
                   autoFocus
                 />
               </div>
               <div className="form-group">
-                <label htmlFor="team-slug">Slug</label>
-                <input
-                  id="team-slug"
-                  type="text"
-                  value={newTeam.slug}
-                  onChange={e => handleSlugChange(e.target.value)}
-                  placeholder="my-team"
-                  pattern="^[a-z0-9][a-z0-9-]*[a-z0-9]$|^[a-z0-9]$"
-                  title="Lowercase letters, numbers, and hyphens only"
-                  required
-                />
-                <span className="form-hint">Lowercase letters, numbers, and hyphens only</span>
+                <label htmlFor="team-slug">URL Slug</label>
+                <div className="input-with-prefix">
+                  <span className="input-prefix">@</span>
+                  <input
+                    id="team-slug"
+                    type="text"
+                    value={newTeam.slug}
+                    onChange={e => handleSlugChange(e.target.value)}
+                    placeholder="engineering"
+                    pattern="^[a-z0-9][a-z0-9-]*[a-z0-9]$|^[a-z0-9]$"
+                    title="Lowercase letters, numbers, and hyphens only"
+                    required
+                  />
+                </div>
+                <span className="form-hint">Used in URLs. Lowercase letters, numbers, and hyphens.</span>
               </div>
               <div className="form-group">
-                <label htmlFor="team-description">Description (optional)</label>
+                <label htmlFor="team-description">Description <span className="optional">(optional)</span></label>
                 <textarea
                   id="team-description"
                   value={newTeam.description}
@@ -191,7 +207,7 @@ function TeamsPage() {
                 />
               </div>
               <div className="form-actions">
-                <button type="button" className="btn btn-secondary" onClick={() => setShowForm(false)}>
+                <button type="button" className="btn btn-secondary" onClick={closeModal}>
                   Cancel
                 </button>
                 <button type="submit" className="btn btn-primary" disabled={creating}>
@@ -203,28 +219,88 @@ function TeamsPage() {
         </div>
       )}
 
+      {/* Content */}
       {loading ? (
-        <div className="loading-state">Loading teams...</div>
-      ) : teamsData?.items.length === 0 ? (
-        <div className="empty-state">
-          <svg width="48" height="48" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.5">
-            <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"/>
-            <circle cx="9" cy="7" r="4"/>
-            <path d="M23 21v-2a4 4 0 0 0-3-3.87"/>
-            <path d="M16 3.13a4 4 0 0 1 0 7.75"/>
-          </svg>
-          <h2>No teams yet</h2>
-          <p>Create your first team to start organizing your projects.</p>
-          <button className="btn btn-primary" onClick={() => setShowForm(true)}>
-            Create Team
-          </button>
+        <div className="teams-loading">
+          <div className="teams-loading__spinner" />
+          <span>Loading teams...</span>
+        </div>
+      ) : filteredTeams.length === 0 ? (
+        <div className="teams-empty-state">
+          <div className="teams-empty-icon">
+            <svg width="64" height="64" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.5">
+              <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"/>
+              <circle cx="9" cy="7" r="4"/>
+              <path d="M23 21v-2a4 4 0 0 0-3-3.87"/>
+              <path d="M16 3.13a4 4 0 0 1 0 7.75"/>
+            </svg>
+          </div>
+          {searchQuery ? (
+            <>
+              <h2>No teams found</h2>
+              <p>No teams match "{searchQuery}"</p>
+              <button className="btn btn-secondary" onClick={() => setSearchQuery('')}>
+                Clear search
+              </button>
+            </>
+          ) : (
+            <>
+              <h2>No teams yet</h2>
+              <p>Create your first team to start organizing your projects.</p>
+              <button className="btn btn-primary" onClick={() => setShowForm(true)}>
+                Create Team
+              </button>
+            </>
+          )}
         </div>
       ) : (
         <DataTable
-          columns={columns}
-          data={teamsData?.items || []}
-          keyExtractor={team => team.id}
-          onRowClick={team => navigate(`/teams/${team.slug}`)}
+          data={filteredTeams}
+          keyExtractor={(team) => team.id}
+          onRowClick={(team) => navigate(`/teams/${team.slug}`)}
+          columns={[
+            {
+              key: 'name',
+              header: 'Name',
+              render: (team) => (
+                <div className="team-name-cell">
+                  <Link
+                    to={`/teams/${team.slug}`}
+                    className="cell-name"
+                    onClick={(e) => e.stopPropagation()}
+                  >
+                    {team.name}
+                  </Link>
+                  <span className="team-slug">@{team.slug}</span>
+                </div>
+              ),
+            },
+            {
+              key: 'description',
+              header: 'Description',
+              className: 'cell-description',
+              render: (team) => team.description || <span className="text-muted">—</span>,
+            },
+            {
+              key: 'role',
+              header: 'Role',
+              render: (team) => team.user_role ? (
+                <Badge variant={roleConfig[team.user_role]?.variant || 'default'}>
+                  {roleConfig[team.user_role]?.label || team.user_role}
+                </Badge>
+              ) : null,
+            },
+            {
+              key: 'members',
+              header: 'Members',
+              render: (team) => <span className="text-muted">{team.member_count}</span>,
+            },
+            {
+              key: 'projects',
+              header: 'Projects',
+              render: (team) => <span className="text-muted">{team.project_count}</span>,
+            },
+          ]}
         />
       )}
     </div>

frontend/src/types.ts

@@ -320,6 +320,8 @@ export interface UserUpdate {
 }
 
 // Access Permission types
+export type AccessSource = 'explicit' | 'team';
+
 export interface AccessPermission {
   id: string;
   project_id: string;
@@ -327,6 +329,9 @@ export interface AccessPermission {
   level: AccessLevel;
   created_at: string;
   expires_at: string | null;
+  source?: AccessSource;  // "explicit" or "team"
+  team_slug?: string;     // Team slug if source is "team"
+  team_role?: string;     // Team role if source is "team"
 }
 
 export interface AccessPermissionCreate {