@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600&display=swap");

:root {
  --bg-primary: #0a0a0d;
  --bg-secondary: #121216;
  --bg-tertiary: #1a1a1f;
  --bg-card: #0f0f13;
  --bg-elevated: #18181d;
  --bg-hover: #1e1e24;

  --text-primary: #eaeaee;
  --text-secondary: #b7b6c5;
  --text-tertiary: #6e6d7a;

  --border: rgba(183, 182, 197, 0.12);
  --border-hover: rgba(183, 182, 197, 0.2);

  --accent: #957a86;
  --accent-hover: #a98d98;
  --accent-subtle: rgba(149, 122, 134, 0.15);
  --accent-text: #c4a8b2;

  --success: #7fb069;
  --error: #d97766;
  --warning: #e8a54b;

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #f8f8fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0f0f4;
    --bg-card: #ffffff;
    --bg-elevated: #ffffff;
    --bg-hover: #eeeef2;

    --text-primary: #18171c;
    --text-secondary: #5c495a;
    --text-tertiary: #8a8494;

    --border: rgba(92, 73, 90, 0.12);
    --border-hover: rgba(92, 73, 90, 0.22);

    --accent: #7a5f6d;
    --accent-hover: #664e5b;
    --accent-subtle: rgba(149, 122, 134, 0.12);
    --accent-text: #5c495a;

    --shadow-sm: 0 1px 3px rgba(92, 73, 90, 0.06);
    --shadow-md: 0 4px 12px rgba(92, 73, 90, 0.08);
  }
}

body.light {
  --bg-primary: #f8f8fa;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f0f4;
  --bg-card: #ffffff;
  --bg-elevated: #ffffff;
  --bg-hover: #eeeef2;

  --text-primary: #18171c;
  --text-secondary: #5c495a;
  --text-tertiary: #8a8494;

  --border: rgba(92, 73, 90, 0.12);
  --border-hover: rgba(92, 73, 90, 0.22);

  --accent: #7a5f6d;
  --accent-hover: #664e5b;
  --accent-subtle: rgba(149, 122, 134, 0.12);
  --accent-text: #5c495a;

  --shadow-sm: 0 1px 3px rgba(92, 73, 90, 0.06);
  --shadow-md: 0 4px 12px rgba(92, 73, 90, 0.08);
}

body.dark {
  --bg-primary: #0a0a0d;
  --bg-secondary: #121216;
  --bg-tertiary: #1a1a1f;
  --bg-card: #0f0f13;
  --bg-elevated: #18181d;
  --bg-hover: #1e1e24;

  --text-primary: #eaeaee;
  --text-secondary: #b7b6c5;
  --text-tertiary: #6e6d7a;

  --border: rgba(183, 182, 197, 0.12);
  --border-hover: rgba(183, 182, 197, 0.2);

  --accent: #957a86;
  --accent-hover: #a98d98;
  --accent-subtle: rgba(149, 122, 134, 0.15);
  --accent-text: #c4a8b2;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
}

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

body {
  font-family:
    "IBM Plex Sans",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.sidebar {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--bg-primary);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-primary);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-logo {
  color: var(--accent);
}

.sidebar-title {
  font-weight: 600;
  font-size: 15px;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-handle {
  font-size: 12px;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.current-page-info {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
}

.page-url {
  font-size: 12px;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-tertiary);
  gap: 12px;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.login-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 32px;
  text-align: center;
  gap: 20px;
}

.login-at-logo {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.login-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.login-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--bg-primary);
  padding: 4px 8px;
  gap: 4px;
  margin: 0;
}

.tab-btn {
  flex: 1;
  padding: 10px 8px;
  background: transparent;
  border: none;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-tertiary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.15s;
}

.tab-btn:hover {
  color: var(--text-secondary);
  background: var(--bg-hover);
}

.tab-btn.active {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.tab-content {
  display: none;
  flex: 1;
  flex-direction: column;
  overflow-y: auto;
}

.tab-content.active {
  display: flex;
}

.quick-actions {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-primary);
}

.btn {
  padding: 10px 18px;
  border-radius: var(--radius-md);
  border: none;
  font-weight: 600;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-small {
  padding: 8px 14px;
  font-size: 12px;
}

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

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

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

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

.btn-icon-text {
  flex: 1;
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
}

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

.create-form {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-primary);
}

.form-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.form-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.annotation-input {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 13px;
  resize: none;
  margin-bottom: 10px;
  background: var(--bg-elevated);
  color: var(--text-primary);
  transition: border-color 0.15s;
}

.annotation-input::placeholder {
  color: var(--text-tertiary);
}

.annotation-input:focus {
  outline: none;
  border-color: var(--accent);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
}

.quote-preview {
  margin-bottom: 12px;
  padding: 12px;
  background: var(--accent-subtle);
  border-left: 2px solid var(--accent);
  border-radius: var(--radius-sm);
}

.quote-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent-text);
}

.quote-preview-clear {
  background: none;
  border: none;
  color: var(--text-tertiary);
  font-size: 16px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

.quote-preview-clear:hover {
  color: var(--text-primary);
}

.quote-preview-text {
  font-size: 12px;
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.5;
}

.annotations-section {
  flex: 1;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-tertiary);
  letter-spacing: 0.5px;
}

.annotation-count {
  font-size: 11px;
  background: var(--bg-tertiary);
  padding: 3px 8px;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
}

.annotations-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
}

.annotation-item {
  padding: 14px 16px;
  background: var(--bg-primary);
  transition: background 0.15s;
}

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

.annotation-item-header {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
  gap: 10px;
}

.annotation-item-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
}

.annotation-item-meta {
  flex: 1;
}

.annotation-item-author {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
}

.annotation-item-time {
  font-size: 11px;
  color: var(--text-tertiary);
}

.annotation-type-badge {
  font-size: 10px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-weight: 500;
}

.annotation-type-badge.highlight {
  background: var(--accent-subtle);
  color: var(--accent-text);
}

.annotation-item-quote {
  padding: 8px 12px;
  border-left: 2px solid var(--accent);
  margin-bottom: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  font-style: italic;
  background: var(--accent-subtle);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.annotation-item-text {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-primary);
}

.bookmarks-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
}

.bookmark-item {
  padding: 14px 16px;
  background: var(--bg-primary);
  text-decoration: none;
  color: inherit;
  display: block;
  transition: background 0.15s;
}

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

.bookmark-title {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}

.bookmark-url {
  font-size: 11px;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 16px;
  text-align: center;
  color: var(--text-tertiary);
}

.empty-icon {
  margin-bottom: 12px;
  color: var(--text-tertiary);
  opacity: 0.4;
}

.empty-text {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.empty-hint {
  font-size: 12px;
  color: var(--text-tertiary);
}

.sidebar-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg-primary);
}

.sidebar-link {
  font-size: 12px;
  color: var(--text-tertiary);
  text-decoration: none;
}

.sidebar-link:hover {
  color: var(--accent-text);
}

.settings-view {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  z-index: 20;
  display: flex;
  flex-direction: column;
  padding: 16px;
}

.settings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.settings-title {
  font-size: 18px;
  font-weight: 600;
}

.setting-item {
  margin-bottom: 20px;
}

.setting-item label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 6px;
  display: block;
}

.settings-input {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 13px;
  background: var(--bg-elevated);
  color: var(--text-primary);
  transition: border-color 0.15s;
}

.settings-input:focus {
  outline: none;
  border-color: var(--accent);
}

.setting-help {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 4px;
}

.scroll-to-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  font-size: 11px;
  color: var(--accent-text);
  background: var(--accent-subtle);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  margin-top: 8px;
  transition: all 0.15s;
}

.scroll-to-btn:hover {
  background: rgba(149, 122, 134, 0.25);
}

::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--bg-hover);
  border-radius: var(--radius-full);
}

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

.collection-selector {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  z-index: 30;
  display: flex;
  flex-direction: column;
  padding: 16px;
}

.collection-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  flex: 1;
}

.collection-select-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s;
}

.collection-select-btn:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
}

.collection-select-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.annotation-item-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-tertiary);
  transition: 0.2s;
  border-radius: 22px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: var(--text-tertiary);
  transition: 0.2s;
  border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--accent);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(18px);
  background-color: white;
}

.theme-toggle-group {
  display: flex;
  background: var(--bg-tertiary);
  padding: 3px;
  border-radius: var(--radius-md);
  gap: 2px;
  margin-top: 8px;
}

.theme-btn {
  flex: 1;
  padding: 6px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.theme-btn:hover {
  color: var(--text-secondary);
}

.theme-btn.active {
  background: var(--bg-primary);
  color: var(--text-primary);
}