/* ============================================
   Controle de Equipamentos IIGD - Ultra Modern UI
   Sidebar Collapsible + Dark/Light Mode
   ============================================ */

:root {
  /* Light Mode (default) */
  --sf-bg-body: #f0f2f5;
  --sf-bg-sidebar: #ffffff;
  --sf-bg-card: #ffffff;
  --sf-bg-input: #f8f9fb;
  --sf-bg-hover: #f0f2f5;
  --sf-bg-table-head: #f8f9fb;
  --sf-border: #e4e7ec;
  --sf-text-primary: #111827;
  --sf-text-secondary: #6b7280;
  --sf-text-muted: #9ca3af;
  --sf-shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
  --sf-shadow-md: 0 4px 6px rgba(0,0,0,0.04), 0 2px 4px rgba(0,0,0,0.06);
  --sf-shadow-lg: 0 10px 25px rgba(0,0,0,0.06), 0 4px 10px rgba(0,0,0,0.04);
  --sf-accent: #4f46e5;
  --sf-accent-hover: #4338ca;
  --sf-accent-light: #eef2ff;
  --sf-accent-rgb: 79, 70, 229;
  --sf-success: #10b981;
  --sf-danger: #ef4444;
  --sf-warning: #f59e0b;
  --sf-info: #3b82f6;
  --sf-sidebar-width: 260px;
  --sf-sidebar-collapsed: 72px;
  --sf-radius: 12px;
  --sf-radius-sm: 8px;
  --sf-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --sf-bg-body: #0f111a;
  --sf-bg-sidebar: #161927;
  --sf-bg-card: #1a1d2e;
  --sf-bg-input: #1e2235;
  --sf-bg-hover: #1e2235;
  --sf-bg-table-head: #1e2235;
  --sf-border: #2a2e3f;
  --sf-text-primary: #e5e7eb;
  --sf-text-secondary: #9ca3af;
  --sf-text-muted: #6b7280;
  --sf-shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --sf-shadow-md: 0 4px 6px rgba(0,0,0,0.3);
  --sf-shadow-lg: 0 10px 25px rgba(0,0,0,0.4);
  --sf-accent-light: rgba(79, 70, 229, 0.15);
}

/* ── Reset & Base ──────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--sf-bg-body);
  color: var(--sf-text-primary);
  margin: 0;
  min-height: 100vh;
  transition: background-color var(--sf-transition), color var(--sf-transition);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--sf-accent);
  text-decoration: none;
  transition: color var(--sf-transition);
}

a:hover {
  color: var(--sf-accent-hover);
}

::selection {
  background: rgba(var(--sf-accent-rgb), 0.2);
}

/* ── Google Fonts (Inter) ──────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── App Layout ────────────────────────────── */
.sf-app {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ───────────────────────────────── */
.sf-sidebar {
  width: var(--sf-sidebar-width);
  min-height: 100vh;
  background: var(--sf-bg-sidebar);
  border-right: 1px solid var(--sf-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1040;
  transition: width var(--sf-transition), transform var(--sf-transition);
  box-shadow: var(--sf-shadow-sm);
}

.sf-sidebar.collapsed {
  width: var(--sf-sidebar-collapsed);
}

.sf-sidebar-brand {
  display: flex;
  align-items: center;
  padding: 20px 18px;
  gap: 12px;
  border-bottom: 1px solid var(--sf-border);
  min-height: 68px;
}

.sf-sidebar-brand .brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--sf-accent), #7c3aed);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(var(--sf-accent-rgb), 0.3);
}

.sf-sidebar-brand .brand-text {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--sf-text-primary);
  white-space: nowrap;
  overflow: hidden;
  opacity: 1;
  transition: opacity var(--sf-transition);
}

.sf-sidebar.collapsed .brand-text {
  opacity: 0;
  width: 0;
}

/* Sidebar Navigation */
.sf-sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  overflow-y: auto;
  overflow-x: hidden;
}

.sf-nav-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sf-text-muted);
  padding: 16px 12px 6px;
  white-space: nowrap;
  overflow: hidden;
  opacity: 1;
  transition: opacity var(--sf-transition);
}

.sf-sidebar.collapsed .sf-nav-label {
  opacity: 0;
  height: 0;
  padding: 0;
  margin: 0;
}

.sf-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--sf-radius-sm);
  color: var(--sf-text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  white-space: nowrap;
  transition: all var(--sf-transition);
  margin-bottom: 2px;
  position: relative;
}

.sf-nav-item i {
  font-size: 1.15rem;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
}

.sf-nav-item span {
  overflow: hidden;
  opacity: 1;
  transition: opacity var(--sf-transition);
}

.sf-sidebar.collapsed .sf-nav-item span {
  opacity: 0;
  width: 0;
}

.sf-nav-item:hover {
  background: var(--sf-bg-hover);
  color: var(--sf-text-primary);
}

.sf-nav-item.active {
  background: var(--sf-accent-light);
  color: var(--sf-accent);
  font-weight: 600;
}

.sf-nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--sf-accent);
  border-radius: 0 4px 4px 0;
}

/* Sidebar Footer */
.sf-sidebar-footer {
  padding: 12px 10px;
  border-top: 1px solid var(--sf-border);
}

.sf-sidebar-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 10px;
  border: none;
  background: var(--sf-bg-hover);
  color: var(--sf-text-secondary);
  border-radius: var(--sf-radius-sm);
  cursor: pointer;
  transition: all var(--sf-transition);
}

.sf-sidebar-toggle:hover {
  background: var(--sf-accent-light);
  color: var(--sf-accent);
}

.sf-sidebar-toggle i {
  transition: transform var(--sf-transition);
}

.sf-sidebar.collapsed .sf-sidebar-toggle i {
  transform: rotate(180deg);
}

/* ── Main Content ──────────────────────────── */
.sf-main {
  flex: 1;
  margin-left: var(--sf-sidebar-width);
  transition: margin-left var(--sf-transition);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.sf-sidebar.collapsed ~ .sf-main {
  margin-left: var(--sf-sidebar-collapsed);
}

/* Top Bar */
.sf-topbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 14px 28px;
  background: var(--sf-bg-card);
  border-bottom: 1px solid var(--sf-border);
  gap: 12px;
  min-height: 68px;
  position: sticky;
  top: 0;
  z-index: 1030;
}

.sf-topbar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: var(--sf-radius-sm);
  transition: background var(--sf-transition);
  cursor: pointer;
  color: var(--sf-text-primary);
}

.sf-topbar-user:hover {
  background: var(--sf-bg-hover);
}

.sf-user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sf-accent), #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 600;
  font-size: 0.85rem;
}

.sf-user-info {
  line-height: 1.2;
}

.sf-user-name {
  font-weight: 600;
  font-size: 0.85rem;
}

.sf-user-role {
  font-size: 0.7rem;
  color: var(--sf-text-muted);
}

/* Theme Toggle */
.sf-theme-toggle {
  width: 38px;
  height: 38px;
  border: 1px solid var(--sf-border);
  background: var(--sf-bg-card);
  color: var(--sf-text-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--sf-transition);
  font-size: 1rem;
}

.sf-theme-toggle:hover {
  background: var(--sf-accent-light);
  color: var(--sf-accent);
  border-color: var(--sf-accent);
}

/* Content Area */
.sf-content {
  flex: 1;
  padding: 28px;
}

/* ── Cards ─────────────────────────────────── */
.sf-card {
  background: var(--sf-bg-card);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius);
  box-shadow: var(--sf-shadow-sm);
  transition: all var(--sf-transition);
  overflow: hidden;
}

.sf-card:hover {
  box-shadow: var(--sf-shadow-md);
}

.sf-card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--sf-border);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--sf-bg-card);
}

.sf-card-body {
  padding: 20px;
}

.sf-card-body.p-0 {
  padding: 0;
}

/* ── Stat Cards ────────────────────────────── */
.sf-stat-card {
  background: var(--sf-bg-card);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--sf-transition);
  box-shadow: var(--sf-shadow-sm);
}

.sf-stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--sf-shadow-lg);
}

.sf-stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.sf-stat-icon.primary { background: rgba(var(--sf-accent-rgb), 0.12); color: var(--sf-accent); }
.sf-stat-icon.success { background: rgba(16, 185, 129, 0.12); color: var(--sf-success); }
.sf-stat-icon.warning { background: rgba(245, 158, 11, 0.12); color: var(--sf-warning); }
.sf-stat-icon.danger { background: rgba(239, 68, 68, 0.12); color: var(--sf-danger); }
.sf-stat-icon.info { background: rgba(59, 130, 246, 0.12); color: var(--sf-info); }

.sf-stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
}

.sf-stat-label {
  font-size: 0.78rem;
  color: var(--sf-text-muted);
  font-weight: 500;
  margin-top: 2px;
}

/* ── Tables ────────────────────────────────── */
.sf-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.sf-table th {
  background: var(--sf-bg-table-head);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--sf-text-muted);
  padding: 12px 16px;
  border-bottom: 1px solid var(--sf-border);
  white-space: nowrap;
}

.sf-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--sf-border);
  font-size: 0.88rem;
  color: var(--sf-text-primary);
  vertical-align: middle;
}

.sf-table tbody tr {
  transition: background var(--sf-transition);
}

.sf-table tbody tr:hover {
  background: var(--sf-bg-hover);
}

.sf-table tbody tr:last-child td {
  border-bottom: none;
}

/* ── Badges ────────────────────────────────── */
.sf-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.sf-badge.success { background: rgba(16, 185, 129, 0.12); color: #059669; }
.sf-badge.danger { background: rgba(239, 68, 68, 0.12); color: #dc2626; }
.sf-badge.warning { background: rgba(245, 158, 11, 0.12); color: #d97706; }
.sf-badge.dark { background: rgba(107, 114, 128, 0.15); color: #4b5563; }
.sf-badge.primary { background: rgba(var(--sf-accent-rgb), 0.12); color: var(--sf-accent); }
.sf-badge.info { background: rgba(59, 130, 246, 0.12); color: #2563eb; }

[data-theme="dark"] .sf-badge.success { color: #34d399; }
[data-theme="dark"] .sf-badge.danger { color: #f87171; }
[data-theme="dark"] .sf-badge.warning { color: #fbbf24; }
[data-theme="dark"] .sf-badge.dark { color: #9ca3af; }
[data-theme="dark"] .sf-badge.info { color: #60a5fa; }

/* ── Buttons ───────────────────────────────── */
.sf-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--sf-radius-sm);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all var(--sf-transition);
  text-decoration: none;
  white-space: nowrap;
}

.sf-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--sf-shadow-md);
}

.sf-btn:active {
  transform: translateY(0);
}

.sf-btn-primary {
  background: var(--sf-accent);
  color: #fff;
}

.sf-btn-primary:hover {
  background: var(--sf-accent-hover);
  color: #fff;
}

.sf-btn-ghost {
  background: transparent;
  color: var(--sf-text-secondary);
  border: 1px solid var(--sf-border);
}

.sf-btn-ghost:hover {
  background: var(--sf-bg-hover);
  color: var(--sf-text-primary);
  border-color: var(--sf-text-muted);
}

.sf-btn-danger {
  background: transparent;
  color: var(--sf-danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.sf-btn-danger:hover {
  background: rgba(239, 68, 68, 0.08);
}

.sf-btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

.sf-btn-lg {
  padding: 12px 24px;
  font-size: 1rem;
}

.sf-btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  justify-content: center;
  border-radius: var(--sf-radius-sm);
}

/* Quick Action Buttons */
.sf-quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sf-quick-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--sf-bg-card);
  border: 1px dashed var(--sf-border);
  border-radius: var(--sf-radius-sm);
  color: var(--sf-text-secondary);
  font-weight: 500;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--sf-transition);
  text-decoration: none;
}

.sf-quick-btn:hover {
  border-color: var(--sf-accent);
  color: var(--sf-accent);
  background: var(--sf-accent-light);
}

/* ── Forms ─────────────────────────────────── */
.sf-form-group {
  margin-bottom: 20px;
}

.sf-form-label {
  display: block;
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--sf-text-primary);
  margin-bottom: 6px;
}

.sf-form-control {
  width: 100%;
  padding: 10px 14px;
  background: var(--sf-bg-input);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-sm);
  color: var(--sf-text-primary);
  font-size: 0.9rem;
  transition: all var(--sf-transition);
  font-family: inherit;
}

.sf-form-control:focus {
  outline: none;
  border-color: var(--sf-accent);
  box-shadow: 0 0 0 3px rgba(var(--sf-accent-rgb), 0.12);
  background: var(--sf-bg-card);
}

.sf-form-control::placeholder {
  color: var(--sf-text-muted);
}

select.sf-form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%236b7280' d='M4.427 6.427l3.396 3.396a.25.25 0 00.354 0l3.396-3.396A.25.25 0 0011.396 6H4.604a.25.25 0 00-.177.427z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

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

.sf-form-switch {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.sf-form-switch input[type="checkbox"] {
  width: 44px;
  height: 24px;
  appearance: none;
  background: var(--sf-border);
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  transition: background var(--sf-transition);
  flex-shrink: 0;
}

.sf-form-switch input[type="checkbox"]::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  top: 3px;
  left: 3px;
  transition: transform var(--sf-transition);
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

.sf-form-switch input[type="checkbox"]:checked {
  background: var(--sf-accent);
}

.sf-form-switch input[type="checkbox"]:checked::before {
  transform: translateX(20px);
}

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

/* ── Page Header ───────────────────────────── */
.sf-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.sf-page-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--sf-text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sf-page-title i {
  color: var(--sf-accent);
}

.sf-page-subtitle {
  font-size: 0.85rem;
  color: var(--sf-text-muted);
  margin-top: 2px;
}

/* ── Filters ───────────────────────────────── */
.sf-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-end;
  padding: 16px 20px;
}

.sf-filter-group {
  flex: 1;
  min-width: 160px;
}

.sf-filter-group label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--sf-text-muted);
  margin-bottom: 4px;
}

/* ── Empty State ───────────────────────────── */
.sf-empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--sf-text-muted);
}

.sf-empty i {
  font-size: 3rem;
  opacity: 0.4;
}

.sf-empty h4 {
  margin-top: 12px;
  font-weight: 600;
  color: var(--sf-text-secondary);
}

.sf-empty p {
  font-size: 0.88rem;
}

/* ── Detail Info Grid ──────────────────────── */
.sf-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  padding: 20px;
}

.sf-info-item small {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--sf-text-muted);
  margin-bottom: 2px;
}

.sf-info-item strong {
  font-size: 0.92rem;
  color: var(--sf-text-primary);
}

/* ── List Items ────────────────────────────── */
.sf-list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--sf-border);
}

.sf-list-item:last-child {
  border-bottom: none;
}

/* ── Photo Thumb ───────────────────────────── */
.sf-photo-thumb {
  width: 40px;
  height: 40px;
  border-radius: var(--sf-radius-sm);
  object-fit: cover;
}

.sf-photo-placeholder {
  width: 40px;
  height: 40px;
  border-radius: var(--sf-radius-sm);
  background: var(--sf-bg-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sf-text-muted);
}

/* ── Alert ─────────────────────────────────── */
.sf-alert {
  padding: 12px 16px;
  border-radius: var(--sf-radius-sm);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 0.88rem;
  font-weight: 500;
  animation: slideDown 0.3s ease;
}

.sf-alert-success {
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.sf-alert-error {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

[data-theme="dark"] .sf-alert-success { color: #34d399; }
[data-theme="dark"] .sf-alert-error { color: #f87171; }

.sf-alert-close {
  margin-left: auto;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  opacity: 0.6;
  font-size: 1.1rem;
}

.sf-alert-close:hover {
  opacity: 1;
}

/* ── Pagination ────────────────────────────── */
.sf-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px 20px;
  border-top: 1px solid var(--sf-border);
}

.sf-pagination-info {
  font-size: 0.85rem;
  color: var(--sf-text-muted);
}

.sf-pagination-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.sf-pagination-ellipsis {
  color: var(--sf-text-muted);
  padding: 0 6px;
  font-weight: 600;
}

.sf-btn.disabled {
  opacity: 0.4;
  pointer-events: none;
  cursor: not-allowed;
}

/* Sort link inside table headers */
.sf-sort-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: inherit;
  text-decoration: none;
  font-weight: inherit;
}

.sf-sort-link:hover {
  color: var(--sf-accent);
  text-decoration: none;
}

.sf-sort-link.active {
  color: var(--sf-accent);
}

/* ── Sortable Tables ───────────────────────── */
.sf-table thead th[data-sort] {
  transition: background 0.15s, color 0.15s;
}

.sf-table thead th[data-sort]:hover {
  background: var(--sf-bg-hover);
  color: var(--sf-text-primary);
}

.sf-sort-indicator {
  display: inline-block;
  margin-left: 4px;
  vertical-align: middle;
}

/* ── Lightbox (Image Zoom) ─────────────────── */
.sf-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 40px;
  cursor: zoom-out;
  animation: sfLightboxFade 0.2s ease;
}

.sf-lightbox.open {
  display: flex;
}

.sf-lightbox img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  cursor: default;
  animation: sfLightboxZoom 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.sf-lightbox-close {
  position: fixed;
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  transition: all 0.2s;
  backdrop-filter: blur(8px);
  z-index: 2001;
}

.sf-lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.05);
}

.sf-photo-zoomable {
  cursor: zoom-in;
  transition: transform 0.15s;
}

.sf-photo-zoomable:hover {
  transform: scale(1.04);
}

@keyframes sfLightboxFade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes sfLightboxZoom {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

/* ── User Dropdown ─────────────────────────── */
.sf-dropdown {
  position: relative;
}

.sf-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: var(--sf-bg-card);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius);
  box-shadow: var(--sf-shadow-lg);
  padding: 6px;
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.97);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.sf-dropdown-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.sf-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--sf-radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--sf-text-primary);
  cursor: pointer;
  transition: background var(--sf-transition);
  text-decoration: none;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
}

.sf-dropdown-item i {
  font-size: 1rem;
  color: var(--sf-text-muted);
  width: 18px;
  text-align: center;
}

.sf-dropdown-item:hover {
  background: var(--sf-bg-hover);
  color: var(--sf-text-primary);
  text-decoration: none;
}

.sf-dropdown-item:hover i {
  color: var(--sf-accent);
}

.sf-dropdown-danger {
  color: var(--sf-danger) !important;
}

.sf-dropdown-danger i {
  color: var(--sf-danger) !important;
}

.sf-dropdown-danger:hover {
  background: rgba(239, 68, 68, 0.08);
  color: var(--sf-danger) !important;
}

.sf-dropdown-divider {
  height: 1px;
  background: var(--sf-border);
  margin: 4px 0;
}

/* ── Dropzone (Photo Upload) ───────────────── */
.sf-dropzone {
  position: relative;
  border: 2px dashed var(--sf-border);
  border-radius: var(--sf-radius);
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  transition: all var(--sf-transition);
  background: var(--sf-bg-input);
}

.sf-dropzone:hover,
.sf-dropzone.dragover {
  border-color: var(--sf-accent);
  background: var(--sf-accent-light);
}

.sf-dropzone.dragover {
  transform: scale(1.01);
}

.sf-dropzone-icon {
  font-size: 2rem;
  color: var(--sf-text-muted);
  transition: color var(--sf-transition);
}

.sf-dropzone:hover .sf-dropzone-icon,
.sf-dropzone.dragover .sf-dropzone-icon {
  color: var(--sf-accent);
}

.sf-dropzone-text {
  margin-top: 8px;
  font-size: 0.88rem;
  color: var(--sf-text-secondary);
  font-weight: 500;
}

.sf-dropzone-hint {
  font-size: 0.72rem;
  color: var(--sf-text-muted);
  margin-top: 4px;
}

.sf-dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.sf-dropzone-preview {
  display: none;
  position: relative;
  margin-top: 12px;
}

.sf-dropzone-preview.active {
  display: block;
}

.sf-dropzone-preview img {
  max-height: 160px;
  max-width: 100%;
  border-radius: var(--sf-radius-sm);
  object-fit: contain;
  box-shadow: var(--sf-shadow-sm);
}

.sf-dropzone-preview .sf-dropzone-remove {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--sf-danger);
  color: #fff;
  border: 2px solid var(--sf-bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.8rem;
  transition: transform var(--sf-transition);
}

.sf-dropzone-preview .sf-dropzone-remove:hover {
  transform: scale(1.15);
}

.sf-dropzone-existing {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  background: var(--sf-bg-hover);
  border-radius: var(--sf-radius-sm);
}

.sf-dropzone-existing img {
  width: 64px;
  height: 64px;
  border-radius: var(--sf-radius-sm);
  object-fit: cover;
}

.sf-dropzone-existing-info {
  font-size: 0.8rem;
  color: var(--sf-text-muted);
}

/* ── Spinner ───────────────────────────────── */
.sf-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: sfSpin 0.6s linear infinite;
  vertical-align: middle;
  flex-shrink: 0;
}

.sf-btn-ghost .sf-spinner,
.sf-btn-danger .sf-spinner {
  border-color: rgba(var(--sf-accent-rgb), 0.2);
  border-top-color: var(--sf-accent);
}

.sf-btn-loading {
  opacity: 0.85;
  pointer-events: none;
  cursor: wait;
}

@keyframes sfSpin {
  to { transform: rotate(360deg); }
}

/* ── Login Page ────────────────────────────── */
.sf-login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f111a 0%, #1a1d3a 50%, #2d1b69 100%);
  padding: 20px;
}

.sf-login-card {
  width: 100%;
  max-width: 420px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 40px 36px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 0.6s ease;
}

.sf-login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.sf-login-logo .brand-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--sf-accent), #7c3aed);
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.6rem;
  margin-bottom: 16px;
  box-shadow: 0 4px 20px rgba(var(--sf-accent-rgb), 0.4);
}

.sf-login-logo h2 {
  color: #fff;
  font-weight: 700;
  font-size: 1.5rem;
  margin: 0;
}

.sf-login-logo p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.88rem;
  margin-top: 4px;
}

.sf-login-card .sf-form-control {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  padding: 12px 16px;
}

.sf-login-card .sf-form-control:focus {
  border-color: var(--sf-accent);
  background: rgba(255, 255, 255, 0.08);
}

.sf-login-card .sf-form-control::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.sf-login-card .sf-form-label {
  color: rgba(255, 255, 255, 0.7);
}

.sf-login-card .sf-btn-primary {
  width: 100%;
  padding: 13px;
  font-size: 1rem;
  background: linear-gradient(135deg, var(--sf-accent), #7c3aed);
  border: none;
  margin-top: 8px;
}

.sf-login-card .sf-btn-primary:hover {
  box-shadow: 0 4px 20px rgba(var(--sf-accent-rgb), 0.4);
}

.sf-login-check {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.85rem;
}

.sf-login-check input {
  accent-color: var(--sf-accent);
}

/* ── Modal ─────────────────────────────────── */
.modal-content {
  background: var(--sf-bg-card);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius);
  color: var(--sf-text-primary);
}

.modal-header {
  border-bottom: 1px solid var(--sf-border);
}

.modal-footer {
  border-top: 1px solid var(--sf-border);
}

/* ── Animations ────────────────────────────── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.4s ease;
}

.animate-fadeInUp-delay-1 {
  animation: fadeInUp 0.4s ease 0.05s both;
}

.animate-fadeInUp-delay-2 {
  animation: fadeInUp 0.4s ease 0.1s both;
}

.animate-fadeInUp-delay-3 {
  animation: fadeInUp 0.4s ease 0.15s both;
}

.animate-fadeInUp-delay-4 {
  animation: fadeInUp 0.4s ease 0.2s both;
}

/* ── Responsive ────────────────────────────── */
@media (max-width: 991.98px) {
  .sf-sidebar {
    transform: translateX(-100%);
    width: var(--sf-sidebar-width) !important;
  }

  .sf-sidebar.mobile-open {
    transform: translateX(0);
  }

  .sf-main {
    margin-left: 0 !important;
  }

  .sf-mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1035;
  }

  .sf-sidebar.mobile-open ~ .sf-mobile-overlay {
    display: block;
  }

  .sf-mobile-toggle {
    display: flex !important;
  }

  .sf-content {
    padding: 16px;
  }
}

@media (min-width: 992px) {
  .sf-mobile-toggle {
    display: none !important;
  }
}

@media (max-width: 575.98px) {
  .sf-page-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .sf-filters {
    flex-direction: column;
  }

  .sf-filter-group {
    min-width: 100%;
  }
}

/* ── Scrollbar ─────────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--sf-border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--sf-text-muted);
}

/* ── Validation (ASP.NET) ──────────────────── */
.field-validation-error {
  font-size: 0.75rem;
  color: var(--sf-danger);
  margin-top: 4px;
  display: block;
}

.validation-summary-errors ul {
  margin: 0;
  padding-left: 16px;
}

.input-validation-error {
  border-color: var(--sf-danger) !important;
}