/* =====================================================
   Velvet Salon Management System — Component Styles
   ===================================================== */

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1.4;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--primary);
  color: var(--text-inverse);
  box-shadow: 0 4px 14px rgba(var(--primary-rgb), 0.25);
}
.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.35);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--surface-hover); }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #3D9B6B; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #C43A3A; }

.btn-warning { background: var(--warning); color: #fff; }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 0.5rem 0.75rem;
}
.btn-ghost:hover { background: var(--surface-hover); color: var(--text); }

.btn-sm { padding: 0.375rem 0.875rem; font-size: 0.8125rem; }
.btn-lg { padding: 0.875rem 1.75rem; font-size: 1rem; }
.btn-icon {
  width: 36px; height: 36px;
  padding: 0; border-radius: var(--radius-md);
}
.btn-icon.btn-sm { width: 30px; height: 30px; }

/* ---- Cards ---- */
.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); }
.card-body { padding: var(--space-lg); }
.card-header {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-header h3, .card-header h4 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
  font-family: var(--font-body);
}
.card-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-light);
  background: var(--bg);
}

/* Stat Card */
.stat-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  transition: all var(--transition);
}
.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.stat-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: #fff;
  flex-shrink: 0;
}
.stat-icon.purple  { background: linear-gradient(135deg, #6B4C8A, #8B6BA8); }
.stat-icon.gold    { background: linear-gradient(135deg, #C9A96E, #D4B97E); }
.stat-icon.green   { background: linear-gradient(135deg, #4CAF7D, #5DC08E); }
.stat-icon.red     { background: linear-gradient(135deg, #D94F4F, #E47070); }
.stat-icon.blue    { background: linear-gradient(135deg, #5B9BD5, #7CB3E0); }
.stat-icon.orange  { background: linear-gradient(135deg, #E5A84B, #EDB96A); }
.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  font-family: var(--font-body);
}
.stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ---- Forms ---- */
.form-group { margin-bottom: var(--space-lg); }
.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}
.form-control {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  color: var(--text);
  background: var(--surface);
  transition: all var(--transition-fast);
  outline: none;
}
.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}
.form-control::placeholder { color: var(--text-light); }
.form-control.error { border-color: var(--danger); }

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%238C8893' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 20px;
  padding-right: 2.5rem;
}
[dir="rtl"] select.form-control {
  background-position: left 0.75rem center;
  padding-right: 0.875rem;
  padding-left: 2.5rem;
}

textarea.form-control { resize: vertical; min-height: 80px; }

.form-hint { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }
.form-error { font-size: 0.75rem; color: var(--danger); margin-top: 4px; }

/* Checkbox / Switch */
.form-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
}
.form-switch input { display: none; }
.form-switch .slider {
  width: 40px; height: 22px;
  background: var(--border);
  border-radius: var(--radius-full);
  position: relative;
  transition: background var(--transition-fast);
}
.form-switch .slider::after {
  content: '';
  width: 18px; height: 18px;
  background: #fff;
  border-radius: 50%;
  position: absolute;
  top: 2px; left: 2px;
  transition: transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
}
.form-switch input:checked + .slider { background: var(--primary); }
.form-switch input:checked + .slider::after { transform: translateX(18px); }
[dir="rtl"] .form-switch input:checked + .slider::after { transform: translateX(-18px); }

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.2rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.4;
}
.badge-primary  { background: var(--primary-light); color: var(--primary); }
.badge-success  { background: var(--success-light); color: var(--success); }
.badge-warning  { background: var(--warning-light); color: #9A6D0F; }
.badge-danger   { background: var(--danger-light);  color: var(--danger); }
.badge-info     { background: var(--info-light);    color: #2A78B5; }
.badge-muted    { background: var(--border-light);  color: var(--text-muted); }

/* ---- Alerts ---- */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  border: 1px solid;
  animation: fadeSlideIn 0.3s ease;
}
.alert-success { background: var(--success-light); border-color: #B8E5CC; color: #1B6D3D; }
.alert-danger  { background: var(--danger-light);  border-color: #F5C6C6; color: #8B2D2D; }
.alert-warning { background: var(--warning-light); border-color: #F0D99E; color: #7A5908; }
.alert-info    { background: var(--info-light);    border-color: #B5D4EC; color: #1D5F8C; }
.alert .alert-close {
  margin-left: auto;
  cursor: pointer;
  background: none;
  border: none;
  font-size: 1.125rem;
  color: inherit;
  opacity: 0.6;
}
[dir="rtl"] .alert .alert-close { margin-left: 0; margin-right: auto; }
.alert .alert-close:hover { opacity: 1; }

/* ---- Table ---- */
.table-container { overflow-x: auto; }
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.table th {
  text-align: left;
  padding: 0.75rem 1rem;
  font-weight: 600;
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
[dir="rtl"] .table th { text-align: right; }
.table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-light);
  color: var(--text);
  vertical-align: middle;
}
.table tbody tr { transition: background var(--transition-fast); }
.table tbody tr:hover { background: var(--surface-hover); }

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal {
  background: var(--surface);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px);
  transition: transform var(--transition);
}
.modal-overlay.active .modal { transform: translateY(0); }
.modal-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-body { padding: var(--space-lg); }
.modal-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-light);
  display: flex;
  gap: var(--space-sm);
  justify-content: flex-end;
}
[dir="rtl"] .modal-footer { justify-content: flex-start; }

/* ---- Avatar ---- */
.avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  flex-shrink: 0;
}
.avatar-sm { width: 32px; height: 32px; font-size: 0.75rem; }
.avatar-lg { width: 56px; height: 56px; font-size: 1.125rem; }

/* ---- Tabs ---- */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border-light);
  margin-bottom: var(--space-lg);
}
.tab {
  padding: 0.75rem 1.25rem;
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-fast);
}
.tab:hover { color: var(--text); }
.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* ---- Loading Spinner ---- */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
.spinner-lg { width: 40px; height: 40px; border-width: 3px; }

/* ---- Empty State ---- */
.empty-state {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  color: var(--text-muted);
}
.empty-state svg {
  width: 80px; height: 80px;
  margin: 0 auto var(--space-lg);
  opacity: 0.3;
}
.empty-state h3 { color: var(--text-secondary); margin-bottom: var(--space-sm); }
.empty-state p { font-size: 0.875rem; }

/* ---- Animations ---- */
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}