/* Theme Variables */
[data-theme="light"] {
    --bg-primary: #f1f5f9;
    --card-bg: #ffffff;
    --sidebar-bg: #ffffff;
    --input-bg: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --hover-bg: #f1f5f9;
    --skeleton-from: #e2e8f0;
    --skeleton-to: #f1f5f9;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --card-bg: #1e293b;
    --sidebar-bg: #1e293b;
    --input-bg: #0f172a;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border: #334155;
    --hover-bg: #334155;
    --skeleton-from: #334155;
    --skeleton-to: #1e293b;
}

[data-theme="dark"] .login-card {
    background: rgba(30,41,59,.95);
}
[data-theme="dark"] .login-header h1 { color: #f1f5f9; }
[data-theme="dark"] .login-header p { color: #94a3b8; }
[data-theme="dark"] .login-form .form-group label { color: #cbd5e1; }
[data-theme="dark"] .login-form input {
    background: #0f172a; border-color: #334155; color: #f1f5f9;
}
[data-theme="dark"] .login-hint { background: rgba(99,102,241,.1); color: #94a3b8; }