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

:root {
  --color-food: #EF4444;
  --color-services: #3B82F6;
  --color-spiritual: #8B5CF6;
  --color-fun: #22C55E;
  --color-academic: #F97316;

  --bg: #F8FAFC;
  --bg-card: #FFFFFF;
  --text: #0F172A;
  --text-muted: #475569;
  --text-light: #94A3B8;
  --border: #E2E8F0;
  --nav-bg: #1E293B;
  --nav-text: #F1F5F9;

  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.1), 0 4px 10px rgba(0,0,0,0.06);

  --font-zh: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-en: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --z-nav: 50;
  --z-filters: 40;
  --z-sidebar: 60;
  --z-overlay: 55;
  --z-onboard: 70;
}

html { font-size: 16px; }
body {
  font-family: var(--font-en);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
  height: 100dvh;
}

/* CJK text styling */
:lang(zh-CN) body, .text-zh { font-family: var(--font-zh); }
.place-name-zh, .step-place-zh, .welcome-title {
  font-family: var(--font-zh);
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--nav-bg);
  color: var(--nav-text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: var(--z-nav);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.nav-brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.nav-brand-zh {
  font-family: var(--font-zh);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-brand-en {
  font-size: 14px;
  font-weight: 500;
  opacity: 0.7;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .nav-btn span { display: none; }
  .nav-btn { padding: 6px 8px; }
  .nav-brand-en { display: none; }
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--nav-text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 200ms, border-color 200ms;
  min-height: 36px;
  white-space: nowrap;
}

.nav-btn:hover { background: rgba(255,255,255,0.1); }
.nav-btn.active { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.4); }
.nav-btn svg { width: 16px; height: 16px; }

#btn-lang {
  font-weight: 600;
  min-width: 48px;
  justify-content: center;
}

/* ===== Map ===== */
#map {
  position: fixed;
  top: 56px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
}

.place-tooltip {
  font-family: var(--font-zh);
  font-size: 13px;
  padding: 4px 8px;
  border-radius: 6px;
  box-shadow: var(--shadow);
}

.corridor-tooltip {
  font-family: var(--font-zh);
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 6px;
}

/* ===== Filters ===== */
#filters {
  position: fixed;
  top: 56px;
  left: 0;
  right: 0;
  z-index: var(--z-filters);
  pointer-events: none;
}

.filters-inner {
  pointer-events: auto;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 10px 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.search-row { margin-bottom: 8px; }

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 10px;
  width: 18px;
  height: 18px;
  color: var(--text-light);
  pointer-events: none;
}

#search-input {
  width: 100%;
  padding: 8px 36px 8px 34px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color 200ms;
}
#search-input:focus { border-color: #3B82F6; }
#search-input::placeholder { color: var(--text-light); }

.search-clear {
  position: absolute;
  right: 6px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--text-light);
  cursor: pointer;
  border-radius: 50%;
}
.search-clear:hover { background: var(--bg); color: var(--text); }
.search-clear.hidden { display: none; }
.search-clear svg { width: 16px; height: 16px; }

.chip-groups {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chip-group {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 2px;
}
.chip-group::-webkit-scrollbar { display: none; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all 200ms;
  min-height: 44px;
}
.chip:hover { border-color: #94A3B8; }
.chip.active {
  border-color: var(--chip-color, #3B82F6);
  background: color-mix(in srgb, var(--chip-color, #3B82F6) 8%, white);
  color: var(--text);
}
.chip-category.active { color: var(--chip-color); font-weight: 600; }

.chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.chip-count {
  font-size: 11px;
  color: var(--text-muted);
  margin-left: 2px;
}

.clear-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
  padding: 4px 10px;
  border: none;
  background: transparent;
  color: var(--color-food);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 4px;
}
.clear-btn:hover { background: #FEF2F2; }
.clear-btn svg { width: 14px; height: 14px; }

.no-results {
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 24px;
  margin: 12px;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: var(--text-muted);
  font-size: 14px;
  text-align: center;
}
.no-results.hidden { display: none; }
.no-results svg { color: var(--text-light); width: 32px; height: 32px; }

/* ===== Sidebar / Bottom Sheet ===== */
#sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.3);
  z-index: var(--z-overlay);
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms;
}
#sidebar-overlay.visible { opacity: 1; pointer-events: auto; }

#sidebar {
  position: fixed;
  z-index: var(--z-sidebar);
  background: var(--bg-card);
  overflow-y: auto;
  transition: transform 300ms cubic-bezier(0.32, 0.72, 0, 1);
}

/* Desktop: right sidebar */
@media (min-width: 1024px) {
  #sidebar {
    top: 56px;
    right: 0;
    bottom: 0;
    width: 400px;
    max-width: 35vw;
    transform: translateX(100%);
    border-left: 1px solid var(--border);
    box-shadow: -4px 0 20px rgba(0,0,0,0.08);
  }
  #sidebar.open { transform: translateX(0); }
  .sidebar-handle { display: none; }
}

/* Mobile + Tablet: bottom sheet */
@media (max-width: 1023px) {
  #sidebar {
    bottom: 0;
    left: 0;
    right: 0;
    max-height: 85dvh;
    border-radius: 16px 16px 0 0;
    transform: translateY(100%);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.12);
  }
  #sidebar.open { transform: translateY(0); }

  .sidebar-handle {
    display: flex;
    justify-content: center;
    padding: 12px 0 4px;
    cursor: grab;
  }
  .handle-bar {
    width: 36px;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
  }
}

.sidebar-content { padding: 16px 20px 24px; }

.sidebar-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: var(--bg);
  border-radius: 50%;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 200ms;
}
.sidebar-close:hover { background: var(--border); color: var(--text); }
.sidebar-close svg { width: 18px; height: 18px; }

.place-header {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.cat-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  color: white;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.stage-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--bg);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 500;
  border: 1px solid var(--border);
}

.place-name-zh {
  font-family: var(--font-zh);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 2px;
}

.place-name-en {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.place-address {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.corridor-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.place-section {
  margin-bottom: 16px;
}
.place-section h4 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
  margin-bottom: 8px;
}

.lang-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.lang-tag {
  padding: 3px 10px;
  border-radius: 12px;
  background: #EFF6FF;
  color: #1D4ED8;
  font-size: 12px;
  font-weight: 500;
}

.transit-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
}
.transit-status.accessible { color: #16A34A; }
.transit-status.not-accessible { color: var(--text-light); }
.transit-status svg { width: 18px; height: 18px; flex-shrink: 0; }

.nearest-transit {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
.meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.meta-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-light);
  letter-spacing: 0.06em;
}
.meta-value {
  font-size: 14px;
  color: var(--text);
}

.verified-section {
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.verified-date {
  font-size: 12px;
  color: var(--text-light);
}

.sidebar-actions {
  display: flex;
  gap: 8px;
  margin-top: 20px;
}

.btn-directions {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--nav-bg);
  color: white;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background 200ms;
  cursor: pointer;
  min-height: 44px;
}
.btn-directions:hover { background: #334155; }
.btn-directions svg { width: 18px; height: 18px; }

.btn-flag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 200ms;
  min-height: 44px;
  white-space: nowrap;
}
.btn-flag:hover { border-color: #94A3B8; background: var(--bg); }
.btn-flag.flagged { color: var(--color-fun); border-color: var(--color-fun); }
.btn-flag svg { width: 16px; height: 16px; }

/* ===== Onboarding ===== */
#onboarding {
  position: fixed;
  inset: 0;
  z-index: var(--z-onboard);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 20px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 300ms;
  background: rgba(0,0,0,0.15);
}
#onboarding.visible { opacity: 1; pointer-events: auto; }

@media (min-width: 768px) {
  #onboarding { align-items: center; }
}

.onboard-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 28px 24px;
  max-width: 420px;
  width: 100%;
  text-align: center;
}

.welcome-icon {
  margin-bottom: 16px;
}
.welcome-icon svg {
  width: 56px;
  height: 56px;
  color: var(--color-spiritual);
}

.welcome-title {
  font-family: var(--font-zh);
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.welcome-sub {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.welcome-actions, .onboard-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-onboard {
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 200ms;
  min-height: 44px;
}

.btn-start, .btn-next {
  background: var(--nav-bg);
  color: white;
}
.btn-start:hover, .btn-next:hover { background: #334155; }
.btn-finish { background: var(--color-fun); color: white; }
.btn-finish:hover { background: #16A34A; }

.btn-skip, .btn-prev {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-skip:hover, .btn-prev:hover { background: var(--bg); }

.onboard-actions {
  flex-direction: row;
  justify-content: space-between;
  margin-top: 20px;
}
.onboard-actions .btn-onboard { flex: 1; }

.onboard-progress {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  margin-bottom: 16px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  background: var(--color-spiritual);
  border-radius: 2px;
  transition: width 300ms;
}

.step-number {
  font-size: 12px;
  color: var(--text-light);
  font-weight: 500;
  margin-bottom: 12px;
}

.step-icon {
  margin-bottom: 12px;
}
.step-icon svg {
  width: 40px;
  height: 40px;
  color: var(--color-spiritual);
}

.step-title {
  font-family: var(--font-zh);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.step-places {
  text-align: left;
  margin-bottom: 8px;
}
.step-place-item {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.step-place-item:last-child { border-bottom: none; }
.step-place-zh {
  font-family: var(--font-zh);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}
.step-place-en {
  font-size: 12px;
  color: var(--text-muted);
}
.step-more {
  font-size: 12px;
  color: var(--text-light);
  padding-top: 6px;
}

/* ===== Footer (inside nav area) ===== */
.footer-privacy {
  position: fixed;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 30;
  font-size: 11px;
  color: var(--text-muted);
  background: rgba(255,255,255,0.95);
  padding: 4px 12px;
  border-radius: 12px;
  white-space: nowrap;
  pointer-events: none;
  backdrop-filter: blur(4px);
}

/* ===== Print Styles ===== */
@media print {
  .nav, #filters, #sidebar, #sidebar-overlay, #onboarding, .footer-privacy,
  .leaflet-control-zoom, .leaflet-control-attribution { display: none !important; }

  #map { display: none !important; }

  body {
    overflow: visible;
    height: auto;
    background: white;
  }

  .print-checklist {
    display: block !important;
    padding: 24px;
    font-size: 14px;
    color: #000;
  }
  .print-checklist h1 {
    font-family: var(--font-zh);
    font-size: 26px;
    margin-bottom: 6px;
  }
  .print-checklist .print-subtitle {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
  }
  .print-checklist .checklist-section {
    margin-bottom: 18px;
  }
  .print-checklist .checklist-section h2 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 2px solid #000;
  }
  .print-checklist .checklist-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 5px 0;
    font-size: 13px;
    line-height: 1.4;
  }
  .print-checklist .check-box {
    width: 14px;
    height: 14px;
    border: 1.5px solid #000;
    border-radius: 2px;
    flex-shrink: 0;
    margin-top: 2px;
  }
  .print-checklist .item-name {
    font-weight: 600;
  }
  .print-checklist .item-addr {
    color: #555;
    font-size: 11px;
  }
  .print-checklist .print-footer {
    margin-top: 20px;
    font-size: 11px;
    color: #999;
    text-align: center;
  }
}
.print-checklist { display: none; }

/* ===== Skip Link ===== */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 100;
  padding: 8px 16px;
  background: var(--nav-bg);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: top 200ms;
}
.skip-link:focus {
  top: 8px;
}

/* ===== Focus Visible ===== */
:focus-visible {
  outline: 2px solid #3B82F6;
  outline-offset: 2px;
}
button:focus-visible, a:focus-visible {
  outline: 2px solid #3B82F6;
  outline-offset: 2px;
}

/* ===== Utility ===== */
.w-4 { width: 16px; }
.h-4 { height: 16px; }
.w-5 { width: 20px; }
.h-5 { height: 20px; }
.w-8 { width: 32px; }
.h-8 { height: 32px; }
.w-16 { width: 64px; }
.h-16 { height: 64px; }

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== Marker Cluster Styles ===== */
.marker-cluster {
  background-clip: padding-box;
  border-radius: 50%;
}
.marker-cluster div {
  width: 36px;
  height: 36px;
  margin-left: 2px;
  margin-top: 2px;
  text-align: center;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}
.marker-cluster-small {
  background: rgba(139, 92, 246, 0.25);
}
.marker-cluster-small div {
  background: rgba(139, 92, 246, 0.8);
}
.marker-cluster-medium {
  background: rgba(59, 130, 246, 0.25);
}
.marker-cluster-medium div {
  background: rgba(59, 130, 246, 0.8);
}
.marker-cluster-large {
  background: rgba(239, 68, 68, 0.25);
}
.marker-cluster-large div {
  background: rgba(239, 68, 68, 0.8);
}

/* ===== Pin bounce animation ===== */
@keyframes pin-bounce {
  0% { transform: scale(1); }
  30% { transform: scale(1.35); }
  60% { transform: scale(0.95); }
  100% { transform: scale(1); }
}
.pin-selected {
  animation: pin-bounce 350ms ease-out;
}

/* ===== Leaflet overrides ===== */
.leaflet-control-zoom a {
  width: 36px !important;
  height: 36px !important;
  line-height: 36px !important;
  font-size: 18px !important;
}