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

html {
  height: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--bg-color, #1a1a1a);
  color: var(--text-color, #e0e0e0);
  min-height: 100%;
  padding-bottom: env(safe-area-inset-bottom, 0);
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
}

a { color: var(--accent-color); text-decoration: none; }
a:active { opacity: 0.7; }

/* ── App Shell ── */
#app {
  max-width: 768px;
  margin: 0 auto;
  padding-bottom: 70px;
  min-height: 100vh;
}

.view { display: none; padding: 16px; padding-top: calc(16px + env(safe-area-inset-top, 0)); }
.view.active { display: block; }

/* Search view: the search bar handles its own safe-area padding */
#view-search { padding-top: 0; }

/* ── Loading Spinner ── */
.spinner {
  display: inline-block;
  width: 24px; height: 24px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px;
  gap: 12px;
  color: var(--text-secondary);
}

/* ── Bottom Navigation ── */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0; right: 0;
  background: var(--nav-bg);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-around;
  padding: 8px 0;
  padding-bottom: calc(8px + env(safe-area-inset-bottom, 0));
  z-index: 100;
  transition: transform 0.3s;
}
.bottom-nav.hidden { transform: translateY(100%); }

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 10px;
  color: var(--text-secondary);
  background: none;
  border: none;
  padding: 4px 16px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.nav-item.active { color: var(--accent-color); }
.nav-item svg { width: 24px; height: 24px; }

/* ── Search ── */
.search-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  position: sticky;
  top: 0;
  background: var(--bg-color);
  padding: 12px 0;
  padding-top: calc(12px + env(safe-area-inset-top, 0));
  z-index: 10;
}

.search-input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text-color);
  font-size: 16px;
  outline: none;
}
.search-input:focus { border-color: var(--accent-color); }

.search-btn {
  padding: 10px 18px;
  background: var(--accent-color);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  cursor: pointer;
  white-space: nowrap;
}
.search-btn:active { opacity: 0.8; }

.source-filter {
  padding: 0 16px;
  margin-bottom: 12px;
}
.source-filter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.source-filter-arrow {
  transition: transform 0.2s;
  font-size: 12px;
}
.source-filter-arrow.expanded { transform: rotate(90deg); }
.source-filter-list {
  display: none;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 8px;
}
.source-filter-list.expanded { display: flex; }
.source-filter-list button {
  padding: 5px 12px;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  background: var(--card-bg);
  color: var(--text-color);
  font-size: 12px;
  cursor: pointer;
  transition: opacity 0.15s;
}
.source-filter-list button.active {
  background: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
}
.source-filter-list button.disabled-src {
  opacity: 0.4;
  text-decoration: line-through;
}

.search-progress {
  text-align: center;
  padding: 20px;
  color: var(--text-secondary);
  font-size: 14px;
}

/* ── Cards / List Items ── */
.novel-card {
  display: flex;
  gap: 12px;
  padding: 12px;
  background: var(--card-bg);
  border-radius: 10px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: background 0.2s;
}
.novel-card:active { background: var(--hover-bg); }

.novel-cover {
  width: 60px;
  height: 80px;
  border-radius: 6px;
  background: var(--border-color);
  object-fit: cover;
  flex-shrink: 0;
}
.novel-cover-placeholder {
  width: 60px;
  height: 80px;
  border-radius: 6px;
  background: var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.novel-info { flex: 1; min-width: 0; }
.novel-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.novel-author { font-size: 13px; color: var(--text-secondary); margin-bottom: 4px; }
.novel-meta { font-size: 12px; color: var(--text-secondary); }
.novel-progress { font-size: 12px; color: var(--accent-color); margin-top: 4px; }

/* ── Novel Detail ── */
.novel-detail-header {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}
.novel-detail-cover { width: 100px; height: 140px; border-radius: 8px; background: var(--border-color); object-fit: cover; }
.novel-detail-info { flex: 1; }
.novel-detail-title { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.novel-detail-author { font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; }
.novel-detail-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  max-height: 120px;
  overflow: hidden;
  margin-bottom: 16px;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 8px;
  border: none;
  font-size: 15px;
  cursor: pointer;
  margin-right: 8px;
  margin-bottom: 8px;
}
.action-btn.primary { background: var(--accent-color); color: #fff; }
.action-btn.secondary { background: var(--card-bg); color: var(--text-color); border: 1px solid var(--border-color); }
.action-btn:active { opacity: 0.8; }

.chapter-list {
  list-style: none;
  border-top: 1px solid var(--border-color);
}
.chapter-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  font-size: 14px;
}
.chapter-list li:active { color: var(--accent-color); }
.chapter-list li.cached::after { content: ' ✓'; color: var(--accent-color); font-size: 11px; }

/* ── Reader ── */
.reader-view { padding: 0 !important; overscroll-behavior-y: contain; }
.reader-header {
  padding: 12px 16px;
  padding-top: calc(12px + env(safe-area-inset-top, 0));
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}
.reader-content {
  padding: 20px 16px;
  font-size: var(--reader-font-size, 18px);
  line-height: var(--reader-line-height, 1.8);
}
.reader-content p {
  margin-bottom: var(--reader-paragraph-spacing, 16px);
  text-indent: 2em;
}

.reader-nav {
  display: flex;
  justify-content: space-between;
  padding: 16px;
  border-top: 1px solid var(--border-color);
}
.reader-nav button {
  padding: 10px 24px;
  background: var(--card-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}
.reader-nav button:disabled { opacity: 0.3; }
.reader-nav button:active:not(:disabled) { background: var(--hover-bg); }

/* ── Reader Toolbar (tap to show) ── */
.reader-toolbar {
  position: fixed;
  bottom: 0;
  left: 0; right: 0;
  max-height: 70vh;
  overflow-y: auto;
  background: var(--nav-bg);
  border-top: 1px solid var(--border-color);
  border-radius: 16px 16px 0 0;
  padding: 12px 16px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom, 0));
  transform: translateY(100%);
  transition: transform 0.3s;
  z-index: 200;
}
.reader-toolbar.visible { transform: translateY(0); }

/* ── Chapter navigation in toolbar ── */
.toolbar-chapter-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.toolbar-chapter-btn {
  padding: 6px 12px;
  background: var(--card-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}
.toolbar-chapter-btn:active { background: var(--hover-bg); }
.toolbar-chapter-slider {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 0;
}
.toolbar-chapter-text {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}
.toolbar-chapter-slider input[type="range"] {
  width: 100%;
  accent-color: var(--accent-color);
}
.toolbar-toc-btn {
  padding: 8px 24px;
  background: var(--card-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}
.toolbar-toc-btn:active { background: var(--hover-bg); }

.toolbar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.toolbar-row:last-child { margin-bottom: 0; }
.toolbar-label { font-size: 13px; color: var(--text-secondary); width: 50px; flex-shrink: 0; }
.toolbar-row input[type="range"] {
  flex: 1;
  accent-color: var(--accent-color);
}
.toolbar-value { font-size: 13px; color: var(--text-color); width: 40px; text-align: right; }

.toolbar-actions {
  display: flex;
  justify-content: space-around;
  padding-top: 8px;
  border-top: 1px solid var(--border-color);
}
.toolbar-btn {
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 13px;
  padding: 8px 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.toolbar-btn svg { width: 20px; height: 20px; }

/* ── Reader TOC overlay ── */
.reader-toc-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 250;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.reader-toc-overlay.visible { opacity: 1; pointer-events: auto; }
.reader-toc-panel {
  background: var(--bg-color);
  border-radius: 16px 16px 0 0;
  width: 100%;
  max-width: 768px;
  max-height: 75vh;
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.3s;
}
.reader-toc-overlay.visible .reader-toc-panel { transform: translateY(0); }
.reader-toc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  font-size: 16px;
  font-weight: 600;
  flex-shrink: 0;
}
.reader-toc-header button {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}
.reader-toc-list {
  overflow-y: auto;
  flex: 1;
  -webkit-overflow-scrolling: touch;
}
.reader-toc-item {
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
}
.reader-toc-item:active { background: var(--hover-bg); }
.reader-toc-item.active {
  color: var(--accent-color);
  font-weight: 600;
}

/* ── Theme Picker ── */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 12px 0;
}
.theme-swatch {
  height: 44px;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
}
.theme-swatch.active { border-color: var(--accent-color); }

/* ── Settings ── */
.settings-section {
  margin-bottom: 24px;
}
.settings-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}
.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}
.settings-row label { font-size: 14px; }
.settings-row .value { font-size: 14px; color: var(--text-secondary); }

.device-id-display {
  font-family: monospace;
  font-size: 12px;
  color: var(--text-secondary);
  word-break: break-all;
  background: var(--input-bg);
  padding: 8px 12px;
  border-radius: 6px;
  margin-top: 8px;
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}
.empty-state-icon { font-size: 48px; margin-bottom: 16px; }
.empty-state-text { font-size: 15px; line-height: 1.5; }

/* ── Toast ── */
.toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  background: rgba(0,0,0,0.8);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 999;
  opacity: 0;
  transition: all 0.3s;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translate(-50%, -50%) scale(1); }

/* ── Page Header (back button) ── */
.page-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.back-btn {
  background: none;
  border: none;
  color: var(--accent-color);
  font-size: 16px;
  cursor: pointer;
  padding: 4px 8px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.page-header-title { font-size: 18px; font-weight: 600; }

/* ── Source Tags ── */
.source-tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 10px;
  background: var(--accent-color);
  color: #fff;
  font-size: 11px;
  font-weight: 500;
  vertical-align: middle;
}

/* ── Source Manager (Settings) ── */
.source-manager {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.source-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--card-bg);
  border-radius: 10px;
}

.source-item-info { flex: 1; min-width: 0; }
.source-item-name { font-size: 15px; font-weight: 600; }
.source-item-domain { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

.source-item-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.source-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.source-status-dot.enabled { background: #4caf50; }
.source-status-dot.disabled { background: #666; }

.source-test-btn {
  padding: 6px 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text-color);
  font-size: 13px;
  cursor: pointer;
  flex-shrink: 0;
}
.source-test-btn:active { opacity: 0.7; }

/* ── Search History ── */
.search-history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 16px;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}
.search-history-clear {
  background: none;
  border: none;
  color: var(--accent-color);
  font-size: 13px;
  cursor: pointer;
  padding: 4px 8px;
}
.search-history-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 16px;
  margin-bottom: 16px;
}
.search-history-tag {
  padding: 6px 14px;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  background: var(--card-bg);
  color: var(--text-color);
  font-size: 13px;
  cursor: pointer;
}
.search-history-tag:active { background: var(--hover-bg); }

/* ── Modal / Bottom Sheet ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 300;
  opacity: 0;
  transition: opacity 0.3s;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.modal-overlay.visible { opacity: 1; }
.bottom-sheet {
  background: var(--bg-color);
  border-radius: 16px 16px 0 0;
  width: 100%;
  max-width: 768px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.3s;
}
.modal-overlay.visible .bottom-sheet { transform: translateY(0); }
.bottom-sheet-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  font-size: 16px;
  font-weight: 600;
  flex-shrink: 0;
}
.bottom-sheet-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}
.bottom-sheet-body {
  overflow-y: auto;
  padding: 12px;
  flex: 1;
}

/* ── Source Import ── */
.source-import-section {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}
.source-import-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 4px;
}
.source-import-textarea {
  width: 100%;
  min-height: 60px;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text-color);
  font-size: 13px;
  font-family: monospace;
  resize: vertical;
}
.source-import-textarea:focus { border-color: var(--accent-color); outline: none; }
.source-import-status {
  font-size: 12px;
  color: var(--text-secondary);
  flex: 1;
  min-width: 0;
  word-break: break-all;
}
.source-import-hint {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 8px;
  line-height: 1.6;
}
.source-import-hint a {
  color: var(--accent-color);
  text-decoration: underline;
}

/* ── Yiove Source Store ── */
.yiove-store {
  margin-top: 12px;
}
.yiove-tabs {
  display: flex;
  gap: 0;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 12px;
  border: 1px solid var(--border-color, #333);
}
.yiove-tab {
  flex: 1;
  padding: 8px 0;
  text-align: center;
  font-size: 13px;
  background: var(--card-bg, #2a2a2a);
  color: var(--text-secondary);
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.yiove-tab.active {
  background: var(--accent-color);
  color: #fff;
  font-weight: 600;
}
.yiove-search-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.yiove-search-row input {
  flex: 1;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-color, #333);
  background: var(--card-bg, #2a2a2a);
  color: var(--text-color);
  font-size: 14px;
}
.yiove-search-row input:focus { border-color: var(--accent-color); outline: none; }
.yiove-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.yiove-card {
  background: var(--card-bg, #2a2a2a);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.yiove-card-info {
  flex: 1;
  min-width: 0;
}
.yiove-card-name {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.yiove-card-meta {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 3px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.yiove-card-desc {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.yiove-import-btn {
  padding: 6px 14px;
  border-radius: 6px;
  border: none;
  background: var(--accent-color);
  color: #fff;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}
.yiove-import-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.yiove-import-btn.done {
  background: #4caf50;
}
.yiove-import-btn.fail {
  background: #f44336;
}
.yiove-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding: 8px 0;
}
.yiove-page-btn {
  padding: 6px 16px;
  border-radius: 6px;
  border: 1px solid var(--border-color, #333);
  background: var(--card-bg, #2a2a2a);
  color: var(--text-color);
  font-size: 13px;
  cursor: pointer;
}
.yiove-page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.yiove-page-info {
  font-size: 13px;
  color: var(--text-secondary);
}
.yiove-valid-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4caf50;
  margin-right: 4px;
  vertical-align: middle;
}
.yiove-valid-dot.invalid {
  background: #f44336;
}
.yiove-loading {
  text-align: center;
  padding: 20px;
  color: var(--text-secondary);
  font-size: 14px;
}

/* ── Touch Target Minimums ── */
.back-btn { min-height: 44px; min-width: 44px; justify-content: center; }
.source-filter-list button { min-height: 36px; padding: 6px 14px; }
.chapter-list li { min-height: 44px; display: flex; align-items: center; }
.reader-toc-header button { min-height: 44px; min-width: 44px; display: inline-flex; align-items: center; justify-content: center; }

/* ── Utilities ── */
.hidden { display: none !important; }
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }