* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; color: #222; background: #f9fafb; }
.container { max-width: 900px; margin: 0 auto; padding: 24px 16px; }
.auth-container { max-width: 400px; margin: 80px auto; padding: 32px; background: white; border-radius: 12px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.auth-container h1 { margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 4px; font-size: 14px; color: #555; }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 10px 12px; border: 1px solid #d1d5db; border-radius: 8px; font-size: 15px; font-family: inherit; }
.form-group input:focus { outline: none; border-color: #0066ff; box-shadow: 0 0 0 3px rgba(0,102,255,0.1); }
.btn { display: inline-block; padding: 10px 24px; border-radius: 8px; font-size: 15px; font-weight: 500; cursor: pointer; border: none; text-decoration: none; }
.btn-primary { background: #0066ff; color: white; width: 100%; text-align: center; margin-top: 8px; }
.btn-primary:hover { background: #0052cc; }
.btn-secondary { background: #f3f4f6; color: #222; }
.btn-danger { background: #dc2626; color: white; }
.btn-link { background: none; color: #0066ff; padding: 0; text-decoration: underline; cursor: pointer; }
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.alert-error { background: #fee2e2; color: #991b1b; }
.alert-success { background: #d1fae5; color: #065f46; }
.alert-info { background: #dbeafe; color: #1e40af; }
.card { background: white; border-radius: 12px; padding: 24px; margin-bottom: 24px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.page-header h1 { font-size: 24px; }
.day-group { margin-bottom: 32px; }
.day-group h3 { font-size: 16px; color: #555; margin-bottom: 12px; text-transform: capitalize; }
.slots-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 8px; }
.slot-card { background: white; border: 1px solid #e5e7eb; border-radius: 8px; padding: 12px; text-align: center; text-decoration: none; color: #222; transition: border-color 0.2s; }
.slot-card:hover { border-color: #0066ff; }
.slot-time { font-size: 20px; font-weight: 600; }
.slot-duration { font-size: 12px; color: #888; margin-top: 4px; }
.muted { color: #6b7280; font-size: 13px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 12px; font-weight: 500; }
.badge-pending { background: #fef3c7; color: #92400e; }
.badge-confirmed { background: #d1fae5; color: #065f46; }
.badge-cancelled { background: #fee2e2; color: #991b1b; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid #e5e7eb; }
.table th { font-size: 13px; color: #6b7280; text-transform: uppercase; font-weight: 600; }