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

:root {
  --color-bg: #F7F5F0;
  --color-surface: #FFFFFF;
  --color-surface-2: #F1EFE8;
  --color-border: rgba(0,0,0,0.08);
  --color-border-hover: rgba(0,0,0,0.18);
  --color-text-primary: #1A1A18;
  --color-text-secondary: #5F5E5A;
  --color-text-muted: #888780;
  --color-accent: #534AB7;
  --color-accent-light: #EEEDFE;
  --color-accent-hover: #3C3489;
  --color-fav-active: #E24B4A;
  --color-fav-bg: #FCEBEB;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --font-serif: Georgia, "Songti SC", "SimSun", serif;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.app-shell {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
}

/* Nav */
.nav {
  display: flex;
  align-items: center;
  padding: 16px 20px 12px;
  border-bottom: 0.5px solid var(--color-border);
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 10;
}

.nav-logo {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text-primary);
  letter-spacing: -0.3px;
}

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

.nav-tabs {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: background 0.18s, color 0.18s;
  border: none;
  background: transparent;
  cursor: pointer;
}

.nav-tab:hover {
  background: var(--color-surface-2);
  color: var(--color-text-primary);
}

.nav-tab.active {
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-weight: 500;
}

.nav-tab svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* Main content */
.main {
  flex: 1;
  padding: 32px 24px 100px;
  display: flex;
  flex-direction: column;
}

/* Hero quote card */
.hero-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 1.2px;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-label::after {
  content: '';
  flex: 1;
  height: 0.5px;
  background: var(--color-border-hover);
}

.quote-card {
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px 24px;
  position: relative;
  transition: border-color 0.2s;
}

.quote-card:hover {
  border-color: var(--color-border-hover);
}

.quote-mark {
  font-family: var(--font-serif);
  font-size: 64px;
  line-height: 1;
  color: var(--color-accent-light);
  position: absolute;
  top: 16px;
  left: 22px;
  pointer-events: none;
  user-select: none;
  font-weight: 700;
}

.quote-text {
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.7;
  color: var(--color-text-primary);
  letter-spacing: 0.2px;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.quote-meta {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
}

.quote-author-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.quote-author {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-primary);
}

.quote-source {
  font-size: 12px;
  color: var(--color-text-muted);
}

.quote-category-badge {
  font-size: 11px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--color-accent-light);
  color: var(--color-accent);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Actions */
.quote-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 400;
  border: 0.5px solid var(--color-border-hover);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.18s;
  font-family: var(--font-sans);
  white-space: nowrap;
}

.btn:hover {
  background: var(--color-surface-2);
  color: var(--color-text-primary);
  border-color: var(--color-border-hover);
}

.btn svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.btn-fav {
  margin-left: auto;
  flex-shrink: 0;
}

.btn-fav.is-fav {
  background: var(--color-fav-bg);
  color: var(--color-fav-active);
  border-color: rgba(226,75,74,0.2);
}

.btn-fav.is-fav:hover {
  background: #F7C1C1;
  color: #A32D2D;
}

.btn-next {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  font-weight: 500;
}

.btn-next:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #fff;
}

/* Quote counter */
.quote-counter {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-top: 24px;
}

.dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-border-hover);
  transition: background 0.2s, transform 0.2s;
  cursor: pointer;
}

.dot.active {
  background: var(--color-accent);
  transform: scale(1.3);
}

/* Browse section */
.section-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin: 36px 0 16px;
}

.browse-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.browse-item {
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s;
  background: var(--color-surface);
}

.browse-item:hover {
  border-color: var(--color-border-hover);
  background: var(--color-surface-2);
}

.browse-item.active {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}

.browse-text {
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-primary);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.browse-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.browse-author {
  font-size: 12px;
  color: var(--color-text-muted);
}

.browse-fav-btn {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  transition: color 0.18s;
}

.browse-fav-btn:hover {
  color: var(--color-fav-active);
}

.browse-fav-btn.is-fav {
  color: var(--color-fav-active);
}

/* Favorites page */
.fav-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 60px 24px;
  text-align: center;
}

.fav-empty-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-fav-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.fav-empty-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-fav-active);
}

.fav-empty-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-primary);
}

.fav-empty-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  max-width: 240px;
  line-height: 1.6;
}

.fav-empty-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 8px;
  padding: 10px 22px;
  border-radius: 100px;
  background: var(--color-accent);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.18s;
}

.fav-empty-link:hover {
  background: var(--color-accent-hover);
}

.fav-count-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.fav-count-text {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.fav-count-text strong {
  color: var(--color-text-primary);
  font-weight: 500;
}

.btn-clear {
  font-size: 12px;
  color: var(--color-text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 0;
  font-family: var(--font-sans);
  transition: color 0.18s;
}

.btn-clear:hover {
  color: var(--color-fav-active);
}

.fav-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.fav-card {
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 18px 16px;
  position: relative;
  background: var(--color-surface);
  transition: border-color 0.18s;
}

.fav-card:hover {
  border-color: var(--color-border-hover);
}

.fav-card-text {
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-primary);
  margin-bottom: 14px;
}

.fav-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.fav-card-meta {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.fav-card-author {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-primary);
}

.fav-card-source {
  font-size: 11px;
  color: var(--color-text-muted);
}

.btn-remove {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--color-text-muted);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  padding: 4px 0;
  transition: color 0.18s;
  flex-shrink: 0;
}

.btn-remove:hover {
  color: var(--color-fav-active);
}

.btn-remove svg {
  width: 13px;
  height: 13px;
}

/* Transition animation */
.quote-card.fade-out {
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.quote-card.fade-in {
  opacity: 0;
  transform: translateY(6px);
  transition: none;
}

.quote-card.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.22s ease, transform 0.22s ease;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 88px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--color-text-primary);
  color: #fff;
  font-size: 13px;
  padding: 8px 18px;
  border-radius: 100px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.22s ease;
  white-space: nowrap;
  z-index: 100;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Bottom nav (mobile feel) */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 0.5px solid var(--color-border);
  display: flex;
  z-index: 20;
}

.bottom-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 0 14px;
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 11px;
  transition: color 0.18s;
  cursor: pointer;
  border: none;
  background: none;
  font-family: var(--font-sans);
}

.bottom-tab:hover {
  color: var(--color-text-secondary);
}

.bottom-tab.active {
  color: var(--color-accent);
}

.bottom-tab svg {
  width: 22px;
  height: 22px;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 4px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--color-border-hover);
  border-radius: 2px;
}