/* ================================================
   DigiFrame Design System
   Dark theme, glassmorphism, vibrant gradients
   ================================================ */

:root {
  /* Colors */
  --bg-primary: #0a0a14;
  --bg-secondary: #0f0f1a;
  --bg-tertiary: #161625;
  --bg-card: rgba(22, 22, 37, 0.7);
  --bg-card-hover: rgba(30, 30, 50, 0.8);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --bg-glass-hover: rgba(255, 255, 255, 0.08);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glass-hover: rgba(255, 255, 255, 0.15);

  --text-primary: #f0f0f5;
  --text-secondary: #9898b0;
  --text-muted: #5a5a75;

  --accent-purple: #a78bfa;
  --accent-indigo: #6366f1;
  --accent-cyan: #06b6d4;
  --accent-green: #34d399;
  --accent-red: #f87171;
  --accent-amber: #fbbf24;

  --gradient-primary: linear-gradient(135deg, #a78bfa 0%, #6366f1 50%, #06b6d4 100%);
  --gradient-warm: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
  --gradient-cool: linear-gradient(135deg, #06b6d4 0%, #6366f1 100%);
  --gradient-success: linear-gradient(135deg, #34d399 0%, #06b6d4 100%);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --text-xs: 0.7rem;
  --text-sm: 0.8rem;
  --text-base: 0.9rem;
  --text-lg: 1.05rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;

  /* Spacing */
  --gap-xs: 4px;
  --gap-sm: 8px;
  --gap-md: 16px;
  --gap-lg: 24px;
  --gap-xl: 32px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 50%;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 200ms;
  --duration-slow: 400ms;

  /* Layout */
  --topbar-height: 56px;
  --bottomnav-height: 68px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

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

html {
  font-size: 16px;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 4px; }

/* ================================================
   Screens
   ================================================ */
.screen {
  display: none;
  min-height: 100dvh;
}
.screen.active { display: flex; flex-direction: column; }

/* ================================================
   Login Screen
   ================================================ */
.login-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: var(--gap-lg);
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(99, 102, 241, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 80% 80%, rgba(6, 182, 212, 0.08) 0%, transparent 70%),
    var(--bg-primary);
}

.login-logo {
  text-align: center;
  margin-bottom: var(--gap-xl);
  animation: fadeInUp 0.6s var(--ease);
}

.logo-icon {
  margin-bottom: var(--gap-md);
  filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.3));
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.login-title {
  font-size: var(--text-3xl);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin-top: var(--gap-xs);
  font-weight: 300;
}

.login-form {
  width: 100%;
  max-width: 360px;
  animation: fadeInUp 0.6s var(--ease) 0.15s both;
}

.input-group {
  display: flex;
  gap: var(--gap-sm);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 6px;
  backdrop-filter: blur(20px);
  transition: border-color var(--duration) var(--ease);
}

.input-group:focus-within {
  border-color: var(--accent-indigo);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.input-group input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: var(--text-base);
  padding: 12px 16px;
}

.input-group input::placeholder {
  color: var(--text-muted);
}

.login-error {
  color: var(--accent-red);
  font-size: var(--text-sm);
  text-align: center;
  margin-top: var(--gap-md);
  min-height: 20px;
}

/* ================================================
   Buttons
   ================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--gap-sm);
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font);
  font-weight: 600;
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
  user-select: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover {
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.5);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }

.btn-glass {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(12px);
}
.btn-glass:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-glass-hover);
}

.btn-danger {
  background: rgba(248, 113, 113, 0.15);
  color: var(--accent-red);
  border: 1px solid rgba(248, 113, 113, 0.2);
}
.btn-danger:hover {
  background: rgba(248, 113, 113, 0.25);
}

.btn-sm {
  padding: 6px 14px;
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-full);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration) var(--ease);
}
.btn-icon:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-glass-hover);
}

.btn-login {
  padding: 12px 24px;
  flex-shrink: 0;
}

.btn-loader {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* ================================================
   Top Bar
   ================================================ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--topbar-height);
  padding: 0 var(--gap-lg);
  background: rgba(10, 10, 20, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
}

.topbar-title {
  font-size: var(--text-lg);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ================================================
   Bottom Navigation
   ================================================ */
.bottomnav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  height: calc(var(--bottomnav-height) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background: rgba(10, 10, 20, 0.92);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-glass);
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: var(--text-xs);
  cursor: pointer;
  transition: color var(--duration) var(--ease);
  position: relative;
  padding: 8px 0;
}

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

.nav-item.active::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 0 0 2px 2px;
}

.nav-item svg {
  width: 22px;
  height: 22px;
}

/* ================================================
   Page Container
   ================================================ */
.page-container {
  flex: 1;
  padding: var(--gap-md) var(--gap-md) calc(var(--bottomnav-height) + var(--safe-bottom) + var(--gap-md));
  overflow-y: auto;
}

.page { display: none; animation: fadeIn 0.3s var(--ease); }
.page.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

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

/* ================================================
   Stats Row (Dashboard)
   ================================================ */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-sm);
  margin-bottom: var(--gap-lg);
}

.stat-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: var(--gap-md);
  text-align: center;
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  opacity: 0.5;
}

.stat-value {
  font-size: var(--text-2xl);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: 2px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

/* ================================================
   Sections
   ================================================ */
.section {
  margin-bottom: var(--gap-lg);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--gap-md);
}

.section-header h3 {
  font-size: var(--text-lg);
  font-weight: 700;
}

/* ================================================
   Devices Grid (Dashboard)
   ================================================ */
.devices-grid {
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
}

.device-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: var(--gap-md);
  display: flex;
  align-items: center;
  gap: var(--gap-md);
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  backdrop-filter: blur(12px);
}

.device-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glass-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.device-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.device-icon.online {
  background: rgba(52, 211, 153, 0.15);
  color: var(--accent-green);
}

.device-icon.offline {
  background: rgba(90, 90, 117, 0.15);
  color: var(--text-muted);
}

.device-info {
  flex: 1;
  min-width: 0;
}

.device-name {
  font-weight: 600;
  font-size: var(--text-base);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.device-meta {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.status-dot.online {
  background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
}

.status-dot.offline {
  background: var(--text-muted);
}

.device-album-badge {
  font-size: var(--text-xs);
  color: var(--accent-purple);
  background: rgba(167, 139, 250, 0.1);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

/* ================================================
   Media Grid
   ================================================ */
.media-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-sm);
}

.media-grid-sm {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap-xs);
}

.media-item {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  background: var(--bg-tertiary);
  transition: transform var(--duration) var(--ease);
}

.media-item:hover {
  transform: scale(1.03);
}

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

.media-item:hover img {
  transform: scale(1.08);
}

.media-item .media-select {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.5);
  background: rgba(0, 0, 0, 0.3);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  transition: all var(--duration) var(--ease);
}

.media-item .media-select.visible { display: flex; }
.media-item .media-select.selected {
  background: var(--accent-indigo);
  border-color: var(--accent-indigo);
}

.media-item .media-delete {
  position: absolute;
  bottom: 6px;
  right: 6px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: none;
  background: rgba(248, 113, 113, 0.85);
  color: white;
  font-size: 14px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
}

.media-item:hover .media-delete { display: flex; }

/* ================================================
   Upload Zone
   ================================================ */
.upload-zone {
  border: 2px dashed var(--border-glass);
  border-radius: var(--radius-lg);
  padding: var(--gap-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  margin-bottom: var(--gap-md);
  background: var(--bg-glass);
}

.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--accent-indigo);
  background: rgba(99, 102, 241, 0.08);
}

.upload-zone-content {
  color: var(--text-secondary);
}

.upload-zone-content svg {
  margin-bottom: var(--gap-sm);
  opacity: 0.5;
}

.upload-zone-content p {
  font-size: var(--text-sm);
}

.upload-progress {
  padding: var(--gap-sm) 0;
}

.progress-bar {
  width: 100%;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 2px;
  transition: width 0.3s var(--ease);
  width: 0%;
}

#upload-status {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin-top: var(--gap-xs);
}

/* ================================================
   Albums Grid
   ================================================ */
.albums-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap-md);
}

.album-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  backdrop-filter: blur(12px);
}

.album-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: var(--border-glass-hover);
}

.album-cover {
  aspect-ratio: 4/3;
  background: var(--bg-tertiary);
  position: relative;
  overflow: hidden;
}

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

.album-card:hover .album-cover img {
  transform: scale(1.08);
}

.album-cover .album-count {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.65);
  color: white;
  font-size: var(--text-xs);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(8px);
  font-weight: 500;
}

.album-cover .album-empty-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  opacity: 0.3;
}

.album-info {
  padding: var(--gap-sm) var(--gap-md);
}

.album-title {
  font-weight: 600;
  font-size: var(--text-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.album-meta {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* ================================================
   Album Detail
   ================================================ */
.album-detail-header {
  margin-bottom: var(--gap-lg);
}

.album-detail-title {
  display: flex;
  align-items: center;
  gap: var(--gap-md);
  margin-bottom: var(--gap-md);
}

.album-detail-title h2 {
  flex: 1;
  font-size: var(--text-xl);
  font-weight: 700;
}

.album-detail-actions {
  display: flex;
  gap: var(--gap-sm);
  flex-wrap: wrap;
}

.album-detail-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-sm);
}

/* ================================================
   Devices List (Full Page)
   ================================================ */
.devices-list-full {
  display: flex;
  flex-direction: column;
  gap: var(--gap-md);
}

.device-card-full {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: var(--gap-lg);
  backdrop-filter: blur(12px);
  cursor: pointer;
  transition: all var(--duration) var(--ease);
}

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

.device-card-full-header {
  display: flex;
  align-items: center;
  gap: var(--gap-md);
  margin-bottom: var(--gap-md);
}

.device-card-full-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-sm);
}

.device-detail-row {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.device-detail-row strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* ================================================
   Device Detail Page
   ================================================ */
.device-detail-section {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: var(--gap-lg);
  margin-bottom: var(--gap-md);
  backdrop-filter: blur(12px);
}

.device-detail-section h3 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--gap-md);
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
}

.control-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-sm);
}

.control-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gap-xs);
  padding: var(--gap-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  cursor: pointer;
  font-family: var(--font);
  font-size: var(--text-xs);
  transition: all var(--duration) var(--ease);
}

.control-btn:hover {
  background: var(--bg-glass-hover);
  border-color: var(--accent-indigo);
  transform: translateY(-2px);
}

.control-btn svg {
  width: 24px;
  height: 24px;
  color: var(--accent-purple);
}

.settings-form {
  display: flex;
  flex-direction: column;
  gap: var(--gap-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--gap-xs);
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group select {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: var(--text-sm);
  outline: none;
  transition: border-color var(--duration) var(--ease);
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent-indigo);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-md);
}

/* Toggle */
.toggle-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.toggle {
  width: 44px;
  height: 24px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  cursor: pointer;
  position: relative;
  transition: all var(--duration) var(--ease);
}

.toggle.active {
  background: var(--accent-indigo);
  border-color: var(--accent-indigo);
}

.toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: white;
  border-radius: 50%;
  transition: transform var(--duration) var(--ease);
}

.toggle.active::after {
  transform: translateX(20px);
}

/* ================================================
   Empty State
   ================================================ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--gap-xl);
  text-align: center;
  color: var(--text-muted);
  font-size: var(--text-sm);
  gap: var(--gap-md);
}

/* ================================================
   Modal
   ================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  animation: fadeIn 0.2s var(--ease);
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: var(--gap-lg);
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  overflow-y: auto;
  animation: slideUp 0.3s var(--ease);
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--gap-lg);
}

.modal-header h3 {
  font-size: var(--text-lg);
  font-weight: 700;
}

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-body {
  margin-bottom: var(--gap-lg);
}

.modal-footer {
  display: flex;
  gap: var(--gap-sm);
  justify-content: flex-end;
}

/* ================================================
   Toast
   ================================================ */
.toast-container {
  position: fixed;
  top: var(--gap-lg);
  right: var(--gap-md);
  left: var(--gap-md);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
  pointer-events: none;
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: var(--gap-sm) var(--gap-md);
  font-size: var(--text-sm);
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
  animation: toastIn 0.3s var(--ease);
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
}

.toast.success { border-left: 3px solid var(--accent-green); }
.toast.error { border-left: 3px solid var(--accent-red); }
.toast.info { border-left: 3px solid var(--accent-cyan); }

.toast.leaving {
  animation: toastOut 0.3s var(--ease) forwards;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(-10px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to { opacity: 0; transform: translateY(-10px) scale(0.95); }
}

/* ================================================
   Lightbox
   ================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 250;
  background: rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s var(--ease);
}

.lightbox img {
  max-width: 95%;
  max-height: 95%;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.lightbox-close {
  position: absolute;
  top: var(--gap-md);
  right: var(--gap-md);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: none;
  color: white;
  font-size: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

/* ================================================
   QR / Pairing
   ================================================ */
.pair-code-display {
  text-align: center;
  padding: var(--gap-lg);
}

.pair-code-display .code {
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: 6px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: var(--gap-md) 0;
}

.pair-code-display .hint {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.pair-code-display .url {
  font-size: var(--text-xs);
  color: var(--text-muted);
  word-break: break-all;
  margin-top: var(--gap-sm);
  background: var(--bg-tertiary);
  padding: var(--gap-sm);
  border-radius: var(--radius-sm);
  font-family: monospace;
}

/* ================================================
   Select Picker (for album assignment)
   ================================================ */
.select-list {
  display: flex;
  flex-direction: column;
  gap: var(--gap-xs);
}

.select-item {
  display: flex;
  align-items: center;
  gap: var(--gap-md);
  padding: var(--gap-sm) var(--gap-md);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--duration) var(--ease);
}

.select-item:hover {
  background: var(--bg-glass-hover);
}

.select-item.selected {
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

/* ================================================
   Media Picker (for adding to albums)
   ================================================ */
.media-picker-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap-xs);
  max-height: 400px;
  overflow-y: auto;
}

.media-picker-item {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  border: 2px solid transparent;
  transition: all var(--duration) var(--ease);
}

.media-picker-item.selected {
  border-color: var(--accent-indigo);
}

.media-picker-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-picker-item .check {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-indigo);
  color: white;
  font-size: 12px;
  display: none;
  align-items: center;
  justify-content: center;
}

.media-picker-item.selected .check {
  display: flex;
}

/* ================================================
   Back Button
   ================================================ */
.back-button {
  display: inline-flex;
  align-items: center;
  gap: var(--gap-xs);
  background: none;
  border: none;
  color: var(--accent-purple);
  font-family: var(--font);
  font-size: var(--text-sm);
  cursor: pointer;
  padding: 0;
  margin-bottom: var(--gap-md);
  font-weight: 500;
}

/* ================================================
   Responsive
   ================================================ */
@media (min-width: 600px) {
  .media-grid { grid-template-columns: repeat(4, 1fr); }
  .media-grid-sm { grid-template-columns: repeat(6, 1fr); }
  .albums-grid { grid-template-columns: repeat(3, 1fr); }
  .stats-row { gap: var(--gap-md); }
}

@media (min-width: 900px) {
  .media-grid { grid-template-columns: repeat(5, 1fr); }
  .albums-grid { grid-template-columns: repeat(4, 1fr); }
  .modal {
    border-radius: var(--radius-xl);
    max-height: 80vh;
  }
  .modal-overlay {
    align-items: center;
  }
}