:root {
  --bg: #1a1d21;
  --bg-elevated: #24282d;
  --bg-elevated-2: #2d3238;
  --border: #383d44;
  --text-primary: #f2f1ed;
  --text-secondary: #a3a8ae;
  --text-tertiary: #6e7480;
  --accent-yellow: #e8c547;
  --accent-red: #d6453d;
  --accent-green: #3dbe7a;
  --accent-amber: #e8923f;
  --accent-blue: #4a90d9;
  --font-display: "Barlow Condensed", sans-serif;
  --font-body: "Inter", sans-serif;
  --radius: 12px;
}

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

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ============ Topbar ============ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  gap: 12px;
}

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

.brand-mark {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 22px;
}

.brand-mark::before, .brand-mark::after {
  content: "";
  display: block;
  height: 4px;
  border-radius: 2px;
}

.brand-mark::before { background: var(--accent-blue); width: 100%; }
.brand-mark::after { background: var(--accent-yellow); width: 65%; }

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-title { font-family: var(--font-display); font-weight: 700; font-size: 20px; letter-spacing: 0.06em; }
.brand-sub { font-size: 11px; color: var(--text-secondary); margin-top: 2px; }

.header-controls { display: flex; align-items: center; gap: 8px; }

.lang-select {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 10px;
  border-radius: 999px;
  cursor: pointer;
  appearance: none;
  text-align: center;
  text-align-last: center;
}

.locate-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-blue);
  border: 1px solid var(--accent-blue);
  color: #0d1a26;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
}

.locate-btn:active { transform: scale(0.97); }
.locate-icon { font-size: 14px; }

/* ============ Page nav ============ */
.page-nav {
  display: flex;
  gap: 8px;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px 12px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-nav::-webkit-scrollbar { display: none; }

.page-nav-link {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
}

.page-nav-link.is-current {
  color: #0d1a26;
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

.page-nav-link svg { width: 15px; height: 15px; }

.page-nav-link-external {
  color: var(--accent-yellow);
  border-color: var(--accent-yellow);
  border-style: dashed;
}

/* ============ Layout ============ */
main { max-width: 720px; margin: 0 auto; padding: 0 16px 32px; }
.section { margin-top: 28px; }
.section-head { margin-bottom: 14px; }

.section-head h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0;
}

.section-sub { font-size: 13px; color: var(--text-secondary); margin: 4px 0 0; }

/* ============ Hero ============ */
.hero {
  margin-top: 18px;
  text-align: center;
  padding: 8px 0 4px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 0;
  line-height: 1.15;
}

.hero p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 8px 0 0;
}

/* ============ Nearest prompt ============ */
.nearest-prompt {
  background: var(--bg-elevated);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 18px 16px;
  text-align: center;
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ============ Mall cards ============ */
.mall-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mall-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
}

.mall-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.mall-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin: 0;
}

.mall-area-badge {
  flex-shrink: 0;
  background: var(--bg-elevated-2);
  border: 1px solid var(--border);
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 999px;
  white-space: nowrap;
}

.mall-distance {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--accent-blue);
  font-weight: 600;
  white-space: nowrap;
  margin-left: 8px;
}

.mall-station-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 8px;
}

.mall-station-row svg {
  flex-shrink: 0;
  color: var(--accent-green);
}

.direct-access-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(61, 190, 122, 0.18);
  color: #6fdb9c;
  margin-top: 6px;
}

.mall-detail {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  display: none;
}

.mall-card.is-expanded .mall-detail {
  display: block;
}

.mall-detail-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 6px 0;
  font-size: 12px;
}

.mall-detail-label {
  color: var(--text-tertiary);
  font-weight: 500;
}

.mall-detail-value {
  color: var(--text-secondary);
}

.mall-expand-hint {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 8px;
  text-align: center;
}

/* ============ Area filter chips ============ */
.filter-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 4px;
}

.filter-row::-webkit-scrollbar { display: none; }

.filter-chip {
  flex: 0 0 auto;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
}

.filter-chip.is-active {
  background: var(--accent-blue);
  color: #0d1a26;
  border-color: var(--accent-blue);
  font-weight: 600;
}

/* ============ Landmark grid ============ */
.landmark-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.landmark-chip {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  text-align: left;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}

.landmark-chip:active { background: var(--bg-elevated-2); }

.landmark-mall-name {
  display: block;
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 4px;
  font-weight: 400;
}

/* ============ Tip cards ============ */
.tip-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 10px;
}

.tip-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--bg-elevated-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
}

.tip-icon svg { width: 18px; height: 18px; }

.tip-title {
  font-size: 14px;
  font-weight: 600;
  margin: 0;
}

.tip-body {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 4px 0 0;
}

/* ============ Share bar ============ */
.share-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px 12px;
}

.share-label { font-size: 12px; color: var(--text-tertiary); font-weight: 500; }

.share-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  padding: 7px 12px;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.share-btn:active { transform: scale(0.97); }
.share-whatsapp svg, .share-wechat svg { color: var(--accent-green); }
.share-copy svg { color: var(--text-secondary); }

/* ============ WeChat QR modal ============ */
.wechat-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.wechat-modal[hidden] { display: none; }

.wechat-modal-inner {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  max-width: 280px;
  text-align: center;
}

.wechat-modal-title { font-size: 14px; font-weight: 500; margin: 0; }
.wechat-qr { width: 180px; height: 180px; border-radius: 8px; background: #fff; }

.wechat-close {
  background: var(--accent-blue);
  border: none;
  color: #0d1a26;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: 999px;
  cursor: pointer;
}

/* ============ Footer ============ */
.footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px 32px;
  font-size: 11px;
  color: var(--text-tertiary);
  text-align: center;
}

.footer-status {
  text-align: left;
  margin-bottom: 0;
}

.footer-share {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  padding: 10px 16px;
}

.status-strip-inner {
  padding: 12px 16px;
}

.status-text {
  font-size: 12px;
  color: var(--text-secondary);
}

.status-note {
  font-size: 12px;
  color: var(--text-tertiary);
  margin: 6px 0 0;
}

.footer p { margin: 4px 0; }
.footer-credit { margin-top: 10px; letter-spacing: 0.04em; }

/* ============ Responsive ============ */
@media (min-width: 600px) {
  .mall-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .landmark-grid { grid-template-columns: 1fr 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}