/* ═══════════════════════════════════════════════════════════
   WATCHLISTS - Mobile-first Dark Theme Styles
   ═══════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────────────────────
   CSS Custom Properties
   ───────────────────────────────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg-primary: #0a0a0a;
  --bg-secondary: #141414;
  --bg-card: #1e1e1e;
  --bg-card-hover: #282828;

  /* Text */
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;

  /* Accent */
  --accent: #e50914;
  --accent-hover: #ff1a1a;
  --accent-soft: rgba(229, 9, 20, 0.15);

  /* Status */
  --success: #46d369;
  --success-soft: rgba(70, 211, 105, 0.15);

  /* Borders & Shadows */
  --border: #2a2a2a;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);

  /* Watched state */
  --watched-overlay: rgba(0, 0, 0, 0.6);

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

  /* Sizing */
  --header-height: 56px;
  --card-radius: 8px;
  --btn-radius: 8px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;

  /* Safe areas for notched phones */
  --safe-top: env(safe-area-inset-top, 0px);
  --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-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input {
  font: inherit;
  border: none;
  background: none;
  color: inherit;
}

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

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

/* ─────────────────────────────────────────────────────────────
   Utility Classes
   ───────────────────────────────────────────────────────────── */
.hidden {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ─────────────────────────────────────────────────────────────
   App Container
   ───────────────────────────────────────────────────────────── */
#app {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ─────────────────────────────────────────────────────────────
   Views
   ───────────────────────────────────────────────────────────── */
.view {
  display: none;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

.view.active {
  display: flex;
}

/* ─────────────────────────────────────────────────────────────
   Header
   ───────────────────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 var(--space-md);
  padding-top: var(--safe-top);
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
}

.header-title {
  font-size: 1.25rem;
  font-weight: 600;
  flex: 1;
  text-align: center;
  margin: 0 var(--space-md);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ─────────────────────────────────────────────────────────────
   Buttons
   ───────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--btn-radius);
  font-weight: 500;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn:active {
  transform: scale(0.97);
}

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

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
}

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

.btn-danger:hover {
  background: var(--accent-hover);
}

.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.btn-icon:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

/* ─────────────────────────────────────────────────────────────
   Content Area
   ───────────────────────────────────────────────────────────── */
.content {
  flex: 1;
  padding: var(--space-md);
  padding-bottom: calc(var(--space-md) + var(--safe-bottom));
}

/* ─────────────────────────────────────────────────────────────
   Lists Grid (Home View)
   ───────────────────────────────────────────────────────────── */
.lists-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.list-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  padding: var(--space-md);
  background: var(--bg-card);
  border-radius: var(--card-radius);
  text-align: center;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.list-card:hover {
  background: var(--bg-card-hover);
}

.list-card:active {
  transform: scale(0.97);
}

.list-card-name {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
  word-break: break-word;
}

.list-card-count {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.list-card-add {
  border: 2px dashed var(--border);
  background: transparent;
  color: var(--text-muted);
}

.list-card-add:hover {
  border-color: var(--text-muted);
  color: var(--text-secondary);
  background: transparent;
}

.list-card-add svg {
  width: 32px;
  height: 32px;
  margin-bottom: var(--space-sm);
}

/* ─────────────────────────────────────────────────────────────
   Items Grid (List Detail View)
   ───────────────────────────────────────────────────────────── */
.items-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.item-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border-radius: var(--card-radius);
  overflow: hidden;
}

.item-poster {
  position: relative;
  aspect-ratio: 2/3;
  background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
}

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

.item-poster-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 2rem;
  color: var(--text-muted);
}

.item-info {
  position: relative;
  padding: var(--space-sm);
  padding-right: calc(var(--space-sm) + 28px);
}

.item-title {
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.item-meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

/* Watched item styling */
.item-card.watched {
  opacity: 0.6;
}

.item-card.watched .item-poster::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--watched-overlay);
}

.item-card.watched .item-poster .watched-badge {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 24px;
  height: 24px;
  background: var(--success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.item-card.watched .item-poster .watched-badge svg {
  width: 14px;
  height: 14px;
  color: white;
}

/* ─────────────────────────────────────────────────────────────
   Watched Section
   ───────────────────────────────────────────────────────────── */
.watched-section {
  margin-top: var(--space-lg);
}

.watched-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-sm) 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.watched-header .chevron {
  transition: transform var(--transition-normal);
}

.watched-header.expanded .chevron {
  transform: rotate(180deg);
}

.watched-grid {
  margin-top: var(--space-md);
}

.watched-grid.collapsed {
  display: none;
}

/* ─────────────────────────────────────────────────────────────
   Empty States
   ───────────────────────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  text-align: center;
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.empty-text {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

/* ─────────────────────────────────────────────────────────────
   Bottom Sheet
   ───────────────────────────────────────────────────────────── */
.sheet {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: flex-end;
  visibility: hidden;
  opacity: 0;
  transition: visibility 0s var(--transition-normal), opacity var(--transition-normal);
}

.sheet[aria-hidden="false"] {
  visibility: visible;
  opacity: 1;
  transition: visibility 0s, opacity var(--transition-normal);
}

.sheet-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
}

.sheet-content {
  position: relative;
  width: 100%;
  max-height: 90vh;
  max-height: 90dvh;
  background: var(--bg-secondary);
  border-radius: var(--card-radius) var(--card-radius) 0 0;
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform var(--transition-normal);
}

.sheet[aria-hidden="false"] .sheet-content {
  transform: translateY(0);
}

.sheet-handle {
  width: 36px;
  height: 4px;
  background: var(--text-muted);
  border-radius: 2px;
  margin: var(--space-sm) auto;
}

.sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border);
}

.sheet-title {
  font-size: 1rem;
  font-weight: 600;
}

/* ─────────────────────────────────────────────────────────────
   Search
   ───────────────────────────────────────────────────────────── */
.search-container {
  position: relative;
  padding: var(--space-md);
}

.search-icon {
  position: absolute;
  left: calc(var(--space-md) + var(--space-sm));
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  padding-left: calc(var(--space-md) + 24px);
  background: var(--bg-card);
  border-radius: var(--btn-radius);
  font-size: 1rem;
}

.search-input:focus {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.search-results {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--space-md) var(--space-md);
  -webkit-overflow-scrolling: touch;
}

.search-result {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-sm);
  border-radius: var(--card-radius);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.search-result:hover {
  background: var(--bg-card);
}

.search-result.added {
  opacity: 0.5;
  pointer-events: none;
}

.search-result-poster {
  width: 48px;
  height: 72px;
  background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
  border-radius: 4px;
  overflow: hidden;
  flex-shrink: 0;
}

.search-result-poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.search-result-title {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-meta {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

.search-result-badge {
  display: inline-block;
  padding: 2px 6px;
  background: var(--bg-card-hover);
  border-radius: 4px;
  font-size: 0.75rem;
  margin-right: var(--space-xs);
}

.search-empty, .search-loading {
  padding: var(--space-xl);
  text-align: center;
  color: var(--text-secondary);
}

/* ─────────────────────────────────────────────────────────────
   Skeleton Loading
   ───────────────────────────────────────────────────────────── */
.skeleton-row {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.skeleton-row::before {
  content: '';
  width: 48px;
  height: 72px;
  background: var(--bg-card);
  border-radius: 4px;
  animation: shimmer 1.5s infinite;
}

.skeleton-row::after {
  content: '';
  flex: 1;
  height: 40px;
  background: var(--bg-card);
  border-radius: 4px;
  animation: shimmer 1.5s infinite;
  animation-delay: 0.1s;
}

@keyframes shimmer {
  0% { opacity: 0.5; }
  50% { opacity: 1; }
  100% { opacity: 0.5; }
}

/* ─────────────────────────────────────────────────────────────
   Modal
   ───────────────────────────────────────────────────────────── */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  visibility: hidden;
  opacity: 0;
  transition: visibility 0s var(--transition-normal), opacity var(--transition-normal);
}

.modal[aria-hidden="false"] {
  visibility: visible;
  opacity: 1;
  transition: visibility 0s, opacity var(--transition-normal);
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 400px;
  background: var(--bg-secondary);
  border-radius: var(--card-radius);
  padding: var(--space-lg);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal[aria-hidden="false"] .modal-content {
  transform: scale(1);
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.modal-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  justify-content: flex-end;
}

.modal-confirm {
  max-width: 340px;
}

.modal-message {
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ─────────────────────────────────────────────────────────────
   Input
   ───────────────────────────────────────────────────────────── */
.input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-card);
  border-radius: var(--btn-radius);
  font-size: 1rem;
}

.input:focus {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* ─────────────────────────────────────────────────────────────
   Toast Notifications
   ───────────────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: calc(var(--space-lg) + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  pointer-events: none;
}

.toast {
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-card);
  border-radius: var(--btn-radius);
  box-shadow: var(--shadow-lg);
  animation: toast-in 0.3s ease, toast-out 0.3s ease 2.7s forwards;
  pointer-events: auto;
}

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

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

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

/* ─────────────────────────────────────────────────────────────
   Delete List Button
   ───────────────────────────────────────────────────────────── */
.list-card {
  position: relative;
}

.btn-delete-list {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.list-card:hover .btn-delete-list,
.list-card:focus-within .btn-delete-list {
  opacity: 1;
}

/* Always visible on touch devices */
@media (hover: none) {
  .btn-delete-list {
    opacity: 0.7;
  }
}

.btn-delete-list:hover {
  background: var(--accent);
  color: white;
}

.btn-delete-list:active {
  transform: scale(0.9);
}

/* ─────────────────────────────────────────────────────────────
   Item Card Action Buttons
   ───────────────────────────────────────────────────────────── */
.btn-remove-item {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.7);
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
}

.item-card:hover .btn-remove-item,
.item-card:focus-within .btn-remove-item {
  opacity: 1;
}

/* Always visible on touch devices */
@media (hover: none) {
  .btn-remove-item {
    opacity: 0.85;
  }
}

.btn-remove-item:hover {
  background: var(--accent);
  color: white;
}

.btn-remove-item:active {
  transform: scale(0.9);
}

/* Toggle watched button - right side, vertically centered */
.btn-toggle-watched {
  position: absolute;
  top: 50%;
  right: var(--space-sm);
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: none;
  border-radius: var(--btn-radius);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.btn-toggle-watched:hover {
  color: var(--success);
}

.btn-toggle-watched:active {
  transform: translateY(-50%) scale(0.9);
}

/* When item is watched, show green style */
.item-card.watched .btn-toggle-watched {
  color: var(--success);
}

.item-card.watched .btn-toggle-watched:hover {
  color: var(--text-secondary);
}

/* ─────────────────────────────────────────────────────────────
   Version Number
   ───────────────────────────────────────────────────────────── */
.version {
  position: fixed;
  bottom: var(--space-sm);
  right: var(--space-sm);
  font-size: 0.625rem;
  color: var(--text-secondary);
  opacity: 0.6;
  pointer-events: none;
  z-index: 1;
}

/* ─────────────────────────────────────────────────────────────
   Responsive: Larger Phones
   ───────────────────────────────────────────────────────────── */
@media (min-width: 480px) {
  .lists-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

/* ─────────────────────────────────────────────────────────────
   Responsive: Tablets
   ───────────────────────────────────────────────────────────── */
@media (min-width: 768px) {
  .lists-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .items-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Sheet becomes centered modal on tablet+ */
  .sheet {
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
  }

  .sheet-content {
    max-width: 500px;
    max-height: 80vh;
    border-radius: var(--card-radius);
  }

  .sheet-handle {
    display: none;
  }
}

/* ─────────────────────────────────────────────────────────────
   Responsive: Desktop
   ───────────────────────────────────────────────────────────── */
@media (min-width: 1024px) {
  .lists-grid {
    grid-template-columns: repeat(5, 1fr);
  }

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

  .content {
    max-width: 1200px;
    margin: 0 auto;
  }
}

/* ─────────────────────────────────────────────────────────────
   Responsive: Large Desktop
   ───────────────────────────────────────────────────────────── */
@media (min-width: 1440px) {
  .lists-grid {
    grid-template-columns: repeat(6, 1fr);
  }

  .items-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

/* ─────────────────────────────────────────────────────────────
   Reduced Motion
   ───────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}