/* ============================================================
   Unified Design System — Glassmorphism + Dark Mode + Mobile-First
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Brand */
  --brand: #3390ec;
  --brand-light: #5ca8f2;
  --brand-glow: rgba(51, 144, 236, 0.35);

  /* Light theme */
  --bg: #e8ecf1;
  --bg-gradient: linear-gradient(135deg, #e8ecf1 0%, #dfe3e9 50%, #eef1f5 100%);
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.88);
  --text: #1a1d23;
  --text-secondary: #5e6778;
  --border: rgba(0, 0, 0, 0.07);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);
  --nav-bg: rgba(232, 236, 241, 0.64);
  --btn-glass: rgba(51, 144, 236, 0.10);
  --btn-border: rgba(51, 144, 236, 0.28);
  --tag-bg: rgba(51, 144, 236, 0.08);
  --divider: rgba(0, 0, 0, 0.06);
  --watermark-opacity: 0.035;

  /* Region accents */
  --accent-user: #3390ec;
  --accent-admin: #4caf80;
  --accent-tieba: #f0983a;
  --accent-tools: #9c56b8;

  /* Info box colors */
  --info-discount-bg: rgba(51, 144, 236, 0.08);
  --info-discount-border: rgba(51, 144, 236, 0.20);
  --info-discount-text: #1e5090;
  --info-bonus-bg: rgba(76, 175, 128, 0.08);
  --info-bonus-border: rgba(76, 175, 128, 0.22);
  --info-bonus-text: #1e7040;
  --info-note-bg: rgba(240, 152, 58, 0.08);
  --info-note-border: rgba(240, 152, 58, 0.22);
  --info-note-text: #7a5020;

  /* Misc */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --blur: 16px;
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --navbar-h: 56px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
}

/* --- Dark Theme --- */
body.dark,
.dark {
  --bg: #0c1119;
  --bg-gradient: linear-gradient(135deg, #0c1119 0%, #101720 50%, #0e131c 100%);
  --surface: rgba(22, 28, 40, 0.72);
  --surface-strong: rgba(22, 28, 40, 0.88);
  --text: #e2e6ed;
  --text-secondary: #8b94a6;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.28);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.38);
  --nav-bg: rgba(12, 17, 25, 0.68);
  --btn-glass: rgba(51, 144, 236, 0.16);
  --btn-border: rgba(51, 144, 236, 0.38);
  --tag-bg: rgba(51, 144, 236, 0.14);
  --divider: rgba(255, 255, 255, 0.07);
  --watermark-opacity: 0.05;

  --info-discount-bg: rgba(51, 144, 236, 0.12);
  --info-discount-border: rgba(51, 144, 236, 0.24);
  --info-discount-text: #8cbcf0;
  --info-bonus-bg: rgba(76, 175, 128, 0.12);
  --info-bonus-border: rgba(76, 175, 128, 0.24);
  --info-bonus-text: #7cc89a;
  --info-note-bg: rgba(240, 152, 58, 0.12);
  --info-note-border: rgba(240, 152, 58, 0.24);
  --info-note-text: #d4a45c;
}

/* ============================================================
   RESET & BASE
   ============================================================ */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  min-height: 100%;
  touch-action: manipulation;
}

body {
  font-family: var(--font);
  background: var(--bg-gradient);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background 0.4s ease, color var(--transition);
  padding-top: calc(var(--navbar-h) + var(--safe-top) + 16px);
  padding-right: var(--safe-right);
  padding-bottom: calc(32px + var(--safe-bottom));
  padding-left: var(--safe-left);
  overscroll-behavior-y: none;
}

body.no-navbar { padding-top: calc(16px + var(--safe-top)); }
body.ios-webapp {
  -webkit-user-select: none;
  user-select: none;
}
body.ios-webapp .navbar { display: none; }
body.ios-webapp:not(.no-navbar) { padding-top: calc(16px + var(--safe-top)); }

::selection {
  background: rgba(51, 144, 236, 0.24);
  color: inherit;
}

a { color: var(--brand); text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

/* ============================================================
   WATERMARK
   ============================================================ */

body.watermark::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Ctext x='10' y='80' fill='%23000000' fill-opacity='0.035' font-family='Inter,sans-serif' font-size='20' transform='rotate(-30 10 80)'%3EKKA%E9%85%B1%3C/text%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 110px 110px;
}

body.dark.watermark::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Ctext x='10' y='80' fill='%23ffffff' fill-opacity='0.045' font-family='Inter,sans-serif' font-size='20' transform='rotate(-30 10 80)'%3EKKA%E9%85%B1%3C/text%3E%3C/svg%3E");
}

/* ============================================================
   NAVBAR
   ============================================================ */

.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: calc(var(--navbar-h) + var(--safe-top));
  padding-top: var(--safe-top);
  background: var(--nav-bg);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border-bottom: 1px solid var(--border);
  z-index: 100;
  transition: background var(--transition), border-color var(--transition);
}

.navbar-content {
  max-width: 1100px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

.navbar .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 600;
  font-size: 1.1rem;
  transition: color var(--transition);
}
.navbar .logo:hover { color: var(--brand); }

.nav-back {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-back:hover { color: var(--brand); }
.nav-back svg { width: 18px; height: 18px; }

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-size: 1.2rem;
  transition: background var(--transition), transform 0.2s ease;
}
.theme-toggle:hover { background: var(--tag-bg); }
.theme-toggle:active { transform: scale(0.92); }

.light-icon, .dark-icon {
  transition: opacity 0.25s ease, transform 0.25s ease;
}
body:not(.dark) .dark-icon { display: none; }
body.dark .light-icon { display: none; }

/* ============================================================
   MAIN CONTENT
   ============================================================ */

.main-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 12px;
  position: relative;
  z-index: 1;
}

.container {
  width: 100%;
  max-width: 780px;
  margin: 16px auto 28px;
  padding: 20px 18px;
  background: var(--surface);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
  z-index: 1;
}

@media (min-width: 640px) {
  .container { padding: 28px 28px; }
}
@media (min-width: 900px) {
  .container { padding: 36px 36px; }
}

/* ============================================================
   PAGE TITLES
   ============================================================ */

.page-title {
  font-size: 1.35rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 24px;
  line-height: 1.5;
  color: var(--text);
  transition: color var(--transition);
}
.page-title .sub {
  display: block;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-top: 4px;
}

.region-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--divider);
  color: var(--text);
  transition: color var(--transition), border-color var(--transition);
}

@media (min-width: 640px) {
  .page-title { font-size: 1.55rem; }
  .region-title { font-size: 1.4rem; }
}

/* ============================================================
   CARDS GRID
   ============================================================ */

.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 600px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
}
@media (min-width: 900px) {
  .cards-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; }
}

/* ============================================================
   NAV CARD (main hub cards)
   ============================================================ */

.nav-card {
  background: var(--surface-strong);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
  cursor: default;
  position: relative;
}

.nav-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(51, 144, 236, 0.22);
}

.card-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.card-icon {
  width: 36px; height: 36px;
  flex-shrink: 0;
  color: var(--brand);
  margin-top: 2px;
  transition: color var(--transition);
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.35;
  margin: 0;
  transition: color var(--transition);
}

.card-description {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
  flex: 1;
  transition: color var(--transition);
}

.card-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--brand);
  background: var(--btn-glass);
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  align-self: flex-start;
  cursor: pointer;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.card-button:hover {
  background: rgba(51, 144, 236, 0.20);
  box-shadow: 0 0 16px var(--brand-glow);
  transform: translateY(-1px);
}
.card-button:active { transform: scale(0.97); }

/* Highlight variant */
.nav-card-highlight {
  border: 2px solid var(--brand);
  box-shadow: 0 0 18px var(--brand-glow), var(--shadow);
}
.nav-card-highlight:hover {
  box-shadow: 0 0 28px rgba(51, 144, 236, 0.45), var(--shadow-lg);
}

/* Admin checkmark badge */
.admin-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  color: #fff;
  background: #4caf80;
  padding: 3px 8px;
  border-radius: 20px;
  margin-left: 6px;
  white-space: nowrap;
}

.dev-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  font-weight: 600;
  color: #fff;
  background: #f5a623;
  padding: 3px 8px;
  border-radius: 20px;
  margin-left: 6px;
  white-space: nowrap;
}

/* ============================================================
   SITE REGIONS (color-coded sections)
   ============================================================ */

.site-region {
  margin-bottom: 28px;
  padding: 16px;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}

#region-weibo-user {
  background: rgba(51, 144, 236, 0.04);
  border-color: rgba(51, 144, 236, 0.12);
}
#region-weibo-admin {
  background: rgba(76, 175, 128, 0.04);
  border-color: rgba(76, 175, 128, 0.12);
}
#region-tieba {
  background: rgba(240, 152, 58, 0.04);
  border-color: rgba(240, 152, 58, 0.12);
}
#region-tools {
  background: rgba(156, 86, 184, 0.04);
  border-color: rgba(156, 86, 184, 0.12);
}

body.dark #region-weibo-user {
  background: rgba(51, 144, 236, 0.06);
  border-color: rgba(51, 144, 236, 0.15);
}
body.dark #region-weibo-admin {
  background: rgba(76, 175, 128, 0.06);
  border-color: rgba(76, 175, 128, 0.15);
}
body.dark #region-tieba {
  background: rgba(240, 152, 58, 0.06);
  border-color: rgba(240, 152, 58, 0.15);
}
body.dark #region-tools {
  background: rgba(156, 86, 184, 0.06);
  border-color: rgba(156, 86, 184, 0.15);
}

/* Region color overrides */
#region-weibo-user .card-icon { color: var(--accent-user); }
#region-weibo-user .card-button { color: var(--accent-user); border-color: rgba(51, 144, 236, 0.30); background: rgba(51, 144, 236, 0.08); }
#region-weibo-user .card-button:hover { background: rgba(51, 144, 236, 0.18); box-shadow: 0 0 14px rgba(51, 144, 236, 0.30); }

#region-weibo-admin .card-icon { color: var(--accent-admin); }
#region-weibo-admin .card-button { color: var(--accent-admin); border-color: rgba(76, 175, 128, 0.30); background: rgba(76, 175, 128, 0.08); }
#region-weibo-admin .card-button:hover { background: rgba(76, 175, 128, 0.18); box-shadow: 0 0 14px rgba(76, 175, 128, 0.30); }

#region-tieba .card-icon { color: var(--accent-tieba); }
#region-tieba .card-button { color: var(--accent-tieba); border-color: rgba(240, 152, 58, 0.30); background: rgba(240, 152, 58, 0.08); }
#region-tieba .card-button:hover { background: rgba(240, 152, 58, 0.18); box-shadow: 0 0 14px rgba(240, 152, 58, 0.30); }

#region-tools .card-icon { color: var(--accent-tools); }
#region-tools .card-button { color: var(--accent-tools); border-color: rgba(156, 86, 184, 0.30); background: rgba(156, 86, 184, 0.08); }
#region-tools .card-button:hover { background: rgba(156, 86, 184, 0.18); box-shadow: 0 0 14px rgba(156, 86, 184, 0.30); }

/* ============================================================
   TABS
   ============================================================ */

.tabs-container {
  background: var(--surface-strong);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 16px;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.tab-list {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: 4px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--divider);
}
.tab-list::-webkit-scrollbar { display: none; }

.tab-item {
  flex-shrink: 0;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 24px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  font-family: var(--font);
}
.tab-item:hover {
  color: var(--brand);
  border-color: var(--btn-border);
  background: var(--btn-glass);
}
.tab-item.active {
  color: #fff;
  background: var(--brand);
  border-color: var(--brand);
  box-shadow: 0 2px 12px var(--brand-glow);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

@media (min-width: 640px) {
  .tabs-container { padding: 20px; }
  .tab-item { padding: 9px 20px; font-size: 0.88rem; }
}

/* ============================================================
   SPEECH CARDS (copy-able text cards)
   ============================================================ */

.speech-card {
  position: relative;
  padding: 18px;
  padding-top: 44px; /* room for copy button */
}

.speech-card .speech-text {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  transition: color var(--transition);
}

.product-image {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin-top: 8px;
}

.copy-btn {
  position: absolute;
  top: 12px; right: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border: none;
  border-radius: 50%;
  background: var(--btn-glass);
  color: var(--brand);
  cursor: pointer;
  font-size: 0.95rem;
  transition: all var(--transition);
  z-index: 2;
}
.copy-btn:hover {
  background: rgba(51, 144, 236, 0.22);
  transform: scale(1.08);
}
.copy-btn:active { transform: scale(0.92); }
.copy-btn.copied {
  color: #4caf80;
  background: rgba(76, 175, 128, 0.15);
}

/* ============================================================
   INFO CARDS / PRODUCT CARDS (price, code, qa pages)
   ============================================================ */

.info-card,
.product-card {
  background: var(--surface-strong);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 2px 16px rgba(0,0,0,0.04);
  margin-bottom: 18px;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.info-card h3,
.product-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  margin: 0;
  padding: 14px 18px;
  background: var(--tag-bg);
  border-bottom: 1px solid var(--border);
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}

.info-card-content,
.product-card-content {
  padding: 18px;
}

@media (min-width: 640px) {
  .info-card-content,
  .product-card-content { padding: 24px; }
}

.info-card-content p,
.product-card-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0.8em;
  transition: color var(--transition);
}
.info-card-content p:last-child { margin-bottom: 0; }

/* Lists inside cards */
.info-card-content ul,
.info-card-content ol,
.product-card-content ul,
.product-card-content ol {
  padding-left: 1.4em;
  margin: 0.6em 0 1em;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.info-card-content li,
.product-card-content li {
  margin-bottom: 6px;
  line-height: 1.6;
}
.info-card-content strong,
.product-card-content strong {
  color: var(--text);
  font-weight: 600;
}

/* Solution lists (numbered) */
.solution-list {
  list-style: decimal;
  padding-left: 1.4em;
}
.solution-list li { margin-bottom: 8px; }

/* ============================================================
   PRICE TABLES
   ============================================================ */

.price-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 16px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-size: 0.88rem;
  transition: border-color var(--transition);
}

.price-table td {
  padding: 11px 14px;
  text-align: center;
  border-bottom: 1px solid var(--divider);
  color: var(--text);
  font-weight: 500;
  line-height: 1.5;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.price-table tbody tr:last-child td { border-bottom: none; }
.price-table tbody tr:hover td { background: rgba(51, 144, 236, 0.04); }

.price-table td:first-child {
  font-weight: 600;
  background: var(--tag-bg);
  width: 35%;
}

@media (min-width: 640px) {
  .price-table { font-size: 0.92rem; }
  .price-table td { padding: 13px 18px; }
}

/* ============================================================
   INFO BOXES (discount / bonus / note)
   ============================================================ */

.info-box {
  padding: 16px;
  border-radius: var(--radius-sm);
  margin-top: 14px;
  font-size: 0.88rem;
  line-height: 1.65;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.info-box h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.info-box p { margin-bottom: 0.6em; color: inherit; }
.info-box p:last-child { margin-bottom: 0; }

.info-box code {
  display: inline-block;
  background: rgba(0,0,0,0.06);
  color: inherit;
  padding: 3px 8px;
  border-radius: 6px;
  font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
  font-size: 0.88em;
  font-weight: 500;
}
body.dark .info-box code { background: rgba(255,255,255,0.10); }

.info-box .annotation {
  font-size: 0.82em;
  opacity: 0.75;
}

.discount-info {
  background: var(--info-discount-bg);
  border: 1px solid var(--info-discount-border);
  color: var(--info-discount-text);
}
.bonus-info {
  background: var(--info-bonus-bg);
  border: 1px solid var(--info-bonus-border);
  color: var(--info-bonus-text);
}
.note-info {
  background: var(--info-note-bg);
  border: 1px solid var(--info-note-border);
  color: var(--info-note-text);
}

/* ============================================================
   CUSTOMER REVIEWS
   ============================================================ */

.customer-reviews {
  background: var(--surface);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 16px;
  margin: 16px 0;
  text-align: center;
  transition: background var(--transition), border-color var(--transition);
}

.customer-reviews h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 12px;
}

.review-images-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.review-image-item {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  overflow: hidden;
}
.review-image-item img {
  width: 100%;
  height: auto;
  display: block;
}

.customer-reviews .highlight-text {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--brand);
  margin-top: 10px;
}

/* ============================================================
   NAV LINK CARDS (share-index style)
   ============================================================ */

.nav-link-card {
  background: var(--surface-strong);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 12px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.nav-link-card:last-child { margin-bottom: 0; }
.nav-link-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--btn-border);
}

.nav-link-card a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  transition: color var(--transition), background var(--transition);
}
.nav-link-card a:hover { background: rgba(51, 144, 236, 0.04); }

.nav-link-card .arrow {
  color: var(--brand);
  font-size: 1.1rem;
  transition: transform var(--transition);
}
.nav-link-card a:hover .arrow { transform: translateX(3px); }

/* ============================================================
   EXPORT BUTTON
   ============================================================ */

.export-wrap {
  position: absolute;
  top: 10px; right: 14px;
  z-index: 10;
}

.export-btn {
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  color: #fff;
  background: var(--brand);
  border: none;
  border-radius: 20px;
  cursor: pointer;
  font-family: var(--font);
  transition: all var(--transition);
}
.export-btn:hover { background: var(--brand-light); box-shadow: 0 2px 12px var(--brand-glow); }

.export-menu {
  display: none;
  position: absolute;
  right: 0; top: 100%;
  margin-top: 6px;
  background: var(--surface-strong);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  min-width: 160px;
  z-index: 20;
}
.export-menu a {
  display: block;
  padding: 10px 16px;
  color: var(--text);
  font-size: 0.85rem;
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
}
.export-menu a:hover { background: var(--tag-bg); color: var(--brand); }

/* ============================================================
   FOOTER DISCLAIMER
   ============================================================ */

.footer-disclaimer {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 28px;
  line-height: 1.8;
  opacity: 0.75;
  transition: color var(--transition);
}

/* ============================================================
   SEPARATOR
   ============================================================ */

.separator {
  border: none;
  border-top: 1px solid var(--divider);
  margin: 28px 0;
  transition: border-color var(--transition);
}

/* ============================================================
   UTILITY
   ============================================================ */

.text-center { text-align: center; }
.mt-2 { margin-top: 12px; }
.mb-2 { margin-bottom: 12px; }
.mt-3 { margin-top: 20px; }
.mb-3 { margin-bottom: 20px; }

.highlight-list {
  background: rgba(250, 233, 205, 0.5);
  border-radius: var(--radius-sm);
  padding: 10px 14px 10px 2em;
  margin: 8px 0;
}
body.dark .highlight-list {
  background: rgba(250, 233, 205, 0.10);
}

/* ============================================================
   RESPONSIVE — larger screens
   ============================================================ */

@media (min-width: 640px) {
  body { padding-top: calc(var(--navbar-h) + var(--safe-top) + 20px); }
  body.no-navbar,
  body.ios-webapp:not(.no-navbar) { padding-top: calc(20px + var(--safe-top)); }
  .main-content { padding: 0 16px; }
  .site-region { padding: 20px; margin-bottom: 32px; }
  .region-title { margin-bottom: 20px; }
}

@media (min-width: 900px) {
  body { padding-top: calc(var(--navbar-h) + var(--safe-top) + 28px); }
  body.no-navbar,
  body.ios-webapp:not(.no-navbar) { padding-top: calc(28px + var(--safe-top)); }
}