:root {
  --bg: #ffffff;
  --surface: #f8f9fa;
  --surface-elevated: #ffffff;
  --surface-container: #f1f3f4;
  --primary: #1a73e8;
  --on-primary: #ffffff;
  --primary-hover: #1557b0;
  --primary-container: #e8f0fe;
  --text-primary: #202124;
  --text-secondary: #5f6368;
  --text-disabled: #9aa0a6;
  --outline: #dadce0;
  --outline-prominent: #80868b;
  --error: #d93025;
  --error-container: #fce8e6;
  --success: #188038;
  --success-container: #e6f4ea;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 24px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1f1f1f;
    --surface: #2d2d2d;
    --surface-elevated: #333333;
    --surface-container: #383838;
    --primary: #8ab4f8;
    --on-primary: #202124;
    --primary-hover: #a8c7fa;
    --primary-container: #1a3a5c;
    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --text-disabled: #5f6368;
    --outline: #5f6368;
    --outline-prominent: #80868b;
    --error: #f28b82;
    --error-container: #3c1816;
    --success: #81c995;
    --success-container: #19331d;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.4);
  }
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Google Sans Text', Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

/* Header / Hero */
header {
  text-align: center;
  margin-bottom: 40px;
}

header h1 {
  font-size: 1.75rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 8px;
}

header > p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  max-width: 440px;
  margin: 0 auto;
  line-height: 1.6;
}

.logo-showcase {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.logo-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.logo-icon {
  width: 72px;
  height: 72px;
  object-fit: contain;
  border-radius: 16px;
}

.trakt-logo {
  background: #edf2fc;
  padding: 10px;
}

.stremio-logo {
  background: #f3e8ff;
  padding: 10px;
}

@media (prefers-color-scheme: dark) {
  .trakt-logo {
    background: #1a2a4a;
  }
  .stremio-logo {
    background: #2a1a3a;
  }
}

.logo-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
}

.arrow-container {
  display: flex;
  align-items: center;
  height: 72px;
}

.arrow-icon {
  width: 64px;
  height: 24px;
  color: var(--text-disabled);
}

.arrow-icon line {
  stroke: currentColor;
}

.arrow-icon polygon {
  fill: currentColor;
}

/* Sections */
#auth-section {
  text-align: center;
  padding: 48px 24px;
}

#config-section {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.user-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--outline);
}

#username {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
}

#username::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: middle;
}

/* Lists */
.lists-section {
  margin-bottom: 24px;
}

.lists-section h2 {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.lists-help {
  color: var(--text-secondary);
  font-size: 0.8125rem;
  margin-bottom: 16px;
}

.list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
  border: 1px solid transparent;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.list-item:hover {
  border-color: var(--outline);
}

.list-item:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-container);
}

/* Google-style checkbox */
.list-item input[type="checkbox"] {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--outline-prominent);
  border-radius: 2px;
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  transition: border-color 0.15s, background 0.15s;
}

.list-item input[type="checkbox"]:hover {
  border-color: var(--primary);
}

.list-item input[type="checkbox"]:checked {
  background: var(--primary);
  border-color: var(--primary);
}

.list-item input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 1px;
  width: 6px;
  height: 10px;
  border: solid var(--on-primary);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.list-item input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.list-item .list-name {
  flex: 1;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
}

.list-item .list-type {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-container);
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: capitalize;
}

/* Inline name editing */
.list-name-input {
  flex: 1;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg);
  border: 1px solid var(--primary);
  border-radius: 4px;
  padding: 2px 6px;
  outline: none;
  box-shadow: 0 0 0 2px var(--primary-container);
  min-width: 0;
}

.list-name-input:focus {
  border-color: var(--primary);
}

/* Reset button */
.reset-name {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--outline);
  border-radius: 4px;
  cursor: pointer;
  padding: 2px 6px;
  font-size: 0.875rem;
  line-height: 1;
  transition: background 0.15s, color 0.15s;
  margin-left: 2px;
}

.reset-name:hover {
  background: var(--surface-container);
  color: var(--text-primary);
}

.reset-name:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Trakt link icon */
.trakt-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 2px;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
  margin-left: 2px;
}

.trakt-link:hover {
  color: var(--primary);
  background: var(--primary-container);
}

.trakt-link:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.trakt-link svg {
  display: block;
}

.list-item .drag-handle {
  cursor: grab;
  color: var(--text-disabled);
  font-size: 1.25rem;
  user-select: none;
  padding: 0 2px;
  line-height: 1;
}

.list-item .drag-handle:active {
  cursor: grabbing;
}

.move-buttons {
  display: flex;
  gap: 2px;
}

.move-buttons button {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--outline);
  border-radius: 4px;
  cursor: pointer;
  padding: 2px 6px;
  font-size: 0.75rem;
  line-height: 1.4;
  transition: background 0.15s, color 0.15s;
}

.move-buttons button:hover:not(:disabled) {
  background: var(--surface-container);
  color: var(--text-primary);
}

.move-buttons button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.move-buttons button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.list-item.dragging {
  opacity: 0.6;
  border: 2px dashed var(--primary);
  background: var(--primary-container);
}

/* Buttons */
.btn-primary, .btn-secondary {
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0 24px;
  height: 48px;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s, opacity 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--outline);
  height: 48px;
  padding: 0 24px;
  font-size: 0.875rem;
}

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

.btn-primary:focus-visible, .btn-secondary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.btn-primary:disabled, .btn-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

a.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--on-primary) !important;
  text-decoration: none;
}

/* Actions */
.actions {
  text-align: center;
  margin-bottom: 24px;
}

/* URL Section */
#url-section {
  background: var(--bg);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--outline);
}

#url-section h3 {
  font-size: 0.9375rem;
  font-weight: 500;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.url-box {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

#addon-url {
  flex: 1;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'Google Sans Text', Roboto, monospace;
  font-size: 0.8125rem;
  line-height: 1.5;
}

#addon-url:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-container);
}

.help {
  color: var(--text-secondary);
  font-size: 0.8125rem;
  line-height: 1.5;
}

/* Loading */
.loading {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
  padding: 32px 16px;
}

/* Notification (Toast) */
#notification {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 24px;
  border-radius: var(--radius-full);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 500;
  z-index: 100;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.25s ease;
  white-space: nowrap;
  background: var(--text-primary);
}

#notification.success {
  background: var(--success);
  color: #fff;
}

#notification.error {
  background: var(--error);
  color: #fff;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* Hidden */
.hidden {
  display: none !important;
}

/* Mobile */
@media (max-width: 600px) {
  .container {
    padding: 24px 16px 48px;
  }

  header h1 {
    font-size: 1.5rem;
  }

  .logo-icon {
    width: 56px;
    height: 56px;
    padding: 8px;
  }

  .arrow-icon {
    width: 48px;
    height: 20px;
  }

  .logo-showcase {
    gap: 8px;
  }

  #config-section {
    padding: 16px;
    border-radius: var(--radius-md);
  }

  .list-item {
    padding: 8px 10px;
    gap: 8px;
    flex-wrap: wrap;
  }

  .list-item .list-type {
    margin-left: auto;
  }

  .move-buttons {
    width: 100%;
    justify-content: flex-end;
    margin-top: 4px;
  }

  .list-item .list-name-input {
    flex: 1 1 100%;
    margin-top: 4px;
  }

  .reset-name,
  .trakt-link {
    margin-top: 4px;
  }

  .url-box {
    flex-direction: column;
  }

  #notification {
    white-space: normal;
    max-width: calc(100vw - 32px);
    text-align: center;
  }
}