/* MediaServ - Advanced Dark UI */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

:root {
  /* Core colors */
  --bg-base: #09090b;
  --bg-surface: #0f0f12;
  --bg-elevated: #18181b;
  --bg-overlay: #1f1f23;
  --bg-hover: #27272a;

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.15);

  /* Text */
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #52525b;
  --text-inverse: #09090b;

  /* Accent */
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-subtle: rgba(99, 102, 241, 0.15);
  --accent-glow: rgba(99, 102, 241, 0.4);

  /* Status */
  --success: #22c55e;
  --success-subtle: rgba(34, 197, 94, 0.15);
  --warning: #f59e0b;
  --warning-subtle: rgba(245, 158, 11, 0.15);
  --error: #ef4444;
  --error-subtle: rgba(239, 68, 68, 0.15);

  /* Effects */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px var(--accent-glow);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s ease;
  --transition-slow: 0.3s ease;
}

/* Reset & Base */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* Animated background gradient */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse 80% 50% at 20% -20%, rgba(99, 102, 241, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(139, 92, 246, 0.1), transparent);
  pointer-events: none;
  z-index: -1;
}

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

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
  backdrop-filter: blur(20px);
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.logo svg {
  color: var(--accent);
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  margin-bottom: 4px;
  font-weight: 500;
  font-size: 13px;
  transition: all var(--transition-fast);
  position: relative;
}

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

.nav-item.active {
  background: var(--accent-subtle);
  color: var(--accent);
}

.nav-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
}

.nav-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 16px 0;
}

.nav-label {
  display: block;
  padding: 0 14px 8px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.user-avatar {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  color: white;
  box-shadow: 0 2px 8px var(--accent-glow);
}

.user-details {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.user-name {
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: capitalize;
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: 260px;
  padding: 28px 36px;
  max-width: 100%;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.page-header h1 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.stats-grid-5 {
  grid-template-columns: repeat(5, 1fr);
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.stat-card:hover {
  border-color: var(--border-default);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 4px;
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.search-form,
.filter-form {
  display: flex;
  gap: 10px;
  flex: 1;
}

.search-form input,
.filter-form input,
.filter-form select {
  flex: 1;
  max-width: 320px;
}

/* Media Grid */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.media-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.media-card:hover {
  border-color: var(--border-default);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.media-preview {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--bg-elevated);
  cursor: pointer;
  overflow: hidden;
}

.media-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.media-card:hover .media-preview img {
  transform: scale(1.05);
}

.media-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.badge {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 4px 10px;
  font-size: 10px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  backdrop-filter: blur(8px);
}

.badge-private {
  background: var(--error-subtle);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-protected {
  background: var(--warning-subtle);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-public {
  background: var(--success-subtle);
  color: var(--success);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge-admin {
  background: var(--accent-subtle);
  color: var(--accent);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.badge-user {
  background: var(--bg-overlay);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.media-info {
  padding: 14px 16px;
}

.media-info h4 {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 6px;
}

.media-meta {
  display: flex;
  gap: 12px;
  font-size: 11px;
  color: var(--text-muted);
}

/* Empty State */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 20px;
}

.empty-state svg {
  color: var(--text-muted);
  margin-bottom: 20px;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.empty-state p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* Cards */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
}

.card-header h3 {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.card-body {
  padding: 20px;
}

/* Settings & Admin Grids */
.settings-grid,
.admin-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.info-row:last-child {
  border-bottom: none;
}

.info-label {
  color: var(--text-muted);
  font-size: 13px;
}

.info-value {
  font-weight: 600;
  font-size: 13px;
}

/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.table th {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: var(--bg-elevated);
}

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

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

.table-thumb {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.table-thumb-icon {
  width: 42px;
  height: 42px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 8px;
}

.status-dot.active {
  background: var(--success);
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

.status-dot.inactive {
  background: var(--error);
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.5);
}

/* Forms */
.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="datetime-local"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 13px;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

.form-group input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin-right: 10px;
  vertical-align: middle;
  accent-color: var(--accent);
}

.form-group small {
  display: block;
  margin-top: 6px;
  font-size: 11px;
  color: var(--text-muted);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.input-prefix {
  display: flex;
  align-items: stretch;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.input-prefix span {
  padding: 11px 12px;
  background: var(--bg-overlay);
  color: var(--text-muted);
  font-size: 12px;
  white-space: nowrap;
  border-right: 1px solid var(--border-default);
}

.input-prefix input {
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  color: white;
  box-shadow: 0 2px 8px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}

.btn-success {
  background: var(--success);
  color: white;
}

.btn-success:hover {
  background: #16a34a;
}

.btn-warning {
  background: var(--warning);
  color: var(--text-inverse);
}

.btn-warning:hover {
  background: #d97706;
}

.btn-danger {
  background: var(--error);
  color: white;
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-sm {
  padding: 7px 12px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
}

.btn-group {
  display: flex;
  gap: 8px;
}

/* Alerts */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
}

.alert-success {
  background: var(--success-subtle);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--success);
}

.alert-error {
  background: var(--error-subtle);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--error);
}

/* Modals */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-lg {
  max-width: 640px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-header h2 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 24px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 18px 24px;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
}

/* Upload Dropzone */
.upload-dropzone {
  border: 2px dashed var(--border-default);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  margin-bottom: 24px;
  background: var(--bg-elevated);
}

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

.upload-dropzone svg {
  color: var(--text-muted);
  margin-bottom: 16px;
}

.upload-dropzone p {
  color: var(--text-secondary);
  font-size: 13px;
}

.upload-dropzone input[type="file"] {
  display: none;
}

.upload-queue {
  margin-bottom: 24px;
}

.upload-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  border: 1px solid var(--border-subtle);
}

.upload-item-name {
  flex: 1;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.upload-item-size {
  font-size: 11px;
  color: var(--text-muted);
}

.upload-item-progress {
  width: 100px;
  height: 4px;
  background: var(--bg-overlay);
  border-radius: 2px;
  overflow: hidden;
}

.upload-item-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #8b5cf6);
  transition: width var(--transition-normal);
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.page-info {
  color: var(--text-muted);
  font-size: 13px;
}

/* Auth Pages */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
  position: relative;
}

.auth-page::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 600px;
  height: 600px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--accent-subtle), transparent 70%);
  pointer-events: none;
}

.auth-container {
  width: 100%;
  max-width: 400px;
  position: relative;
  z-index: 1;
}

.auth-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
}

.auth-header {
  text-align: center;
  margin-bottom: 32px;
}

.auth-header h1 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-header p {
  color: var(--text-muted);
  font-size: 14px;
}

.auth-form .form-group:last-of-type {
  margin-bottom: 28px;
}

/* Responsive */
@media (max-width: 1200px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid-5 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1024px) {
  .settings-grid,
  .admin-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .main-content {
    margin-left: 0;
    padding: 20px;
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .toolbar {
    flex-direction: column;
  }

  .search-form,
  .filter-form {
    flex-direction: column;
  }

  .search-form input,
  .filter-form input,
  .filter-form select {
    max-width: none;
  }

  .stats-grid,
  .stats-grid-5 {
    grid-template-columns: 1fr;
  }
}