:root {
  --bg: #0e1116;
  --panel: rgba(18, 22, 30, 0.82);
  --panel-solid: #12161e;
  --border: rgba(255, 255, 255, 0.08);
  --text: #eef2f7;
  --muted: #9aa7b8;
  --accent: #e63946;
  --accent-soft: rgba(230, 57, 70, 0.16);
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  /* stop Safari from hijacking touch as page scroll / rubber-band */
  overscroll-behavior: none;
  touch-action: none;
}

#map {
  position: absolute;
  inset: 0;
  /* let all touch gestures reach the 3D map (one-finger pan included) */
  touch-action: none;
}

#map gmp-map-3d,
#map canvas {
  touch-action: none;
}

/* ---- Top bar ---- */
.topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: linear-gradient(180deg, rgba(8, 10, 14, 0.85), rgba(8, 10, 14, 0));
  pointer-events: none;
}

.topbar > * {
  pointer-events: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  letter-spacing: 0.3px;
}

.brand-mark {
  color: var(--accent);
  font-size: 16px;
  animation: pulse 2.6s ease-in-out infinite;
}

.brand-text strong {
  color: var(--accent);
  font-weight: 800;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.82); }
}

.topbar-actions {
  display: flex;
  gap: 10px;
}

/* ---- City switcher ---- */
.city-switch {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  backdrop-filter: blur(12px);
  pointer-events: auto;
}

.city-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  background: none;
  color: var(--muted);
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}

.city-btn:hover {
  color: var(--text);
}

.city-btn.active {
  background: var(--accent);
  color: #fff;
}

.city-flag {
  font-size: 15px;
}

@media (max-width: 720px) {
  .city-switch {
    position: absolute;
    top: 56px;
    left: 50%;
    transform: translateX(-50%);
    max-width: calc(100vw - 24px);
    overflow-x: auto;
  }
  .city-name {
    display: none;
  }
  .city-flag {
    font-size: 18px;
  }
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  backdrop-filter: blur(12px);
  transition: transform 0.12s ease, background 0.18s ease, border-color 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.22);
}

.btn:active {
  transform: translateY(0);
}

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

.btn-primary.running {
  background: #1c222c;
  border-color: var(--accent);
  color: var(--accent);
}

.btn-icon {
  font-size: 11px;
}

.btn-icon-only {
  padding: 9px 11px;
  min-width: 40px;
  justify-content: center;
  font-weight: 700;
}

.btn-icon-only.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ---- Place search ---- */
.place-search {
  margin: 0 10px 6px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 13.5px;
  outline: none;
}

.place-search::placeholder {
  color: var(--muted);
}

.place-search:focus {
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.08);
}

/* Google Places autocomplete dropdown on dark UI */
.pac-container {
  z-index: 100;
  border-radius: 10px;
  margin-top: 4px;
}

/* ---- Lightbox ---- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: rgba(6, 8, 12, 0.92);
  backdrop-filter: blur(6px);
  padding: 24px;
}

.lb-figure {
  margin: 0;
  max-width: min(1100px, 90vw);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.lb-img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: 10px;
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.6);
  object-fit: contain;
}

.lb-caption {
  font-size: 12.5px;
  color: var(--muted);
  cursor: pointer;
  text-align: center;
}

.lb-caption:hover {
  color: var(--text);
  text-decoration: underline;
}

.lb-btn {
  border: 1px solid var(--border);
  background: rgba(20, 24, 32, 0.8);
  color: var(--text);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  flex: 0 0 auto;
  transition: background 0.15s ease;
}

.lb-btn:hover {
  background: rgba(40, 46, 58, 0.95);
}

.lb-close {
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 24px;
}

@media (max-width: 720px) {
  .lb-btn {
    width: 40px;
    height: 40px;
    font-size: 22px;
  }
  .lightbox {
    padding: 12px;
    gap: 6px;
  }
}

/* ---- Sidebar ---- */
.sidebar {
  position: absolute;
  top: 70px;
  left: 20px;
  bottom: 24px;
  width: 268px;
  z-index: 9;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease;
}

body.sidebar-collapsed .sidebar {
  transform: translateX(calc(-100% - 32px));
  opacity: 0;
  pointer-events: none;
}

.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 12px 8px 18px;
}

.sidebar-title {
  margin: 0;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--muted);
}

.sidebar-collapse {
  border: none;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  width: 26px;
  height: 26px;
  border-radius: 8px;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease;
}

.sidebar-collapse:hover {
  background: rgba(255, 255, 255, 0.14);
}

/* Floating button to reopen the collapsed sidebar */
.sidebar-open {
  position: absolute;
  top: 70px;
  left: 20px;
  z-index: 9;
  width: 44px;
  height: 44px;
  display: none;
  place-items: center;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 12px;
  font-size: 18px;
  cursor: pointer;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

body.sidebar-collapsed .sidebar-open {
  display: grid;
}

.landmark-list {
  margin: 0;
  padding: 4px 8px 10px;
  list-style: none;
  overflow-y: auto;
}

.landmark-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.landmark-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.landmark-item.active {
  background: var(--accent-soft);
  box-shadow: inset 3px 0 0 var(--accent);
}

.landmark-emoji {
  font-size: 22px;
  width: 26px;
  text-align: center;
}

.landmark-name {
  font-size: 14.5px;
  font-weight: 600;
}

/* ---- Map markers ---- */
.map-marker {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: var(--accent);
  font-size: 19px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
  display: grid;
  place-items: center;
  transition: transform 0.15s ease;
}

.map-marker:hover {
  transform: scale(1.18) translateY(-2px);
}

/* ---- Info card ---- */
.info-card {
  position: absolute;
  top: 72px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 11;
  width: min(460px, calc(100vw - 40px));
  padding: 20px 22px 18px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.info-card.hidden {
  opacity: 0;
  transform: translate(-50%, -16px);
  pointer-events: none;
}

.info-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.info-emoji {
  font-size: 26px;
}

.info-name {
  flex: 1;
  margin: 0;
  font-size: 21px;
  font-weight: 800;
}

.card-toggle {
  border: none;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  width: 26px;
  height: 26px;
  border-radius: 7px;
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.15s ease;
}

.card-toggle:hover {
  background: rgba(255, 255, 255, 0.14);
}

.info-card.collapsed .card-toggle {
  transform: rotate(-90deg);
}

.info-card.collapsed .info-desc,
.info-card.collapsed .info-meta,
.info-card.collapsed .info-actions,
.info-card.collapsed .info-wiki {
  display: none;
}

/* sidebar item buttons */
.landmark-name {
  flex: 1;
  min-width: 0;
}

.lm-btn {
  flex: 0 0 auto;
  border: none;
  background: none;
  color: var(--muted);
  width: 24px;
  height: 24px;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.lm-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.lm-fav.on {
  color: #ffcf4d;
}

.lm-route.on {
  color: var(--accent);
}

.fav-filter {
  border: none;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  width: 26px;
  height: 26px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}

.fav-filter.active {
  color: #ffcf4d;
  background: rgba(255, 207, 77, 0.15);
}

/* route bar */
.route-bar {
  margin: 0 10px 8px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
}

.route-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
  max-height: 100px;
  overflow-y: auto;
}

.route-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  font-size: 12px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
}

.route-x {
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
}

.route-x:hover {
  color: var(--text);
}

.route-actions {
  display: flex;
  gap: 6px;
}

.route-btn {
  flex: 1;
  padding: 7px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
}

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

/* info card actions + wiki */
.info-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.card-action {
  flex: 1;
  padding: 8px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
}

.card-action:hover {
  background: rgba(255, 255, 255, 0.1);
}

.info-wiki {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: #cdd6e2;
}

.wiki-extract {
  margin: 0 0 6px;
}

.wiki-link {
  color: var(--accent);
  font-size: 12.5px;
  text-decoration: none;
}

.wiki-link:hover {
  text-decoration: underline;
}

/* street view overlay */
.streetview {
  position: fixed;
  inset: 0;
  z-index: 65;
  background: #000;
}

.sv-pano {
  position: absolute;
  inset: 0;
}

.sv-close {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  border: 1px solid var(--border);
  background: rgba(14, 17, 22, 0.85);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

.sv-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  color: var(--muted);
}

.info-desc {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.6;
  color: #cdd6e2;
}

.info-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.meta-chip {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 7px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.meta-k {
  font-size: 11px;
  color: var(--muted);
}

.meta-v {
  font-size: 14px;
  font-weight: 700;
}

.info-close {
  border: none;
  background: none;
  color: var(--muted);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  padding: 0 2px;
}

.info-close:hover {
  color: var(--text);
}

/* ---- Loader ---- */
.loader {
  position: absolute;
  inset: 0;
  z-index: 50;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 18px;
  background: var(--bg);
  color: var(--muted);
  transition: opacity 0.5s ease;
}

.loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-spinner {
  width: 44px;
  height: 44px;
  border: 3px solid rgba(255, 255, 255, 0.12);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

.loader-error {
  max-width: 460px;
  padding: 0 24px;
  text-align: center;
  color: var(--text);
}

.loader-error-icon {
  font-size: 46px;
}

.loader-error h2 {
  margin: 14px 0 8px;
  font-size: 20px;
}

.loader-error p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--muted);
}

.loader-error code {
  display: inline-block;
  padding: 8px 12px;
  font-size: 12px;
  color: #ffb4ba;
  background: rgba(230, 57, 70, 0.12);
  border: 1px solid rgba(230, 57, 70, 0.3);
  border-radius: 8px;
  word-break: break-word;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---- Map placeholder (no API key yet) ---- */
.map-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 10px;
  text-align: center;
  padding: 0 24px;
  background: radial-gradient(circle at 50% 35%, #1a2230, #0e1116 70%);
  color: var(--muted);
}

.map-placeholder-icon {
  font-size: 52px;
}

.map-placeholder h2 {
  margin: 8px 0 2px;
  font-size: 20px;
  color: var(--text);
}

.map-placeholder p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  max-width: 460px;
}

.map-placeholder code {
  padding: 2px 6px;
  font-size: 12.5px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 5px;
}

/* ---- Photo strip ---- */
.photo-strip {
  position: absolute;
  bottom: 24px;
  left: 312px;
  right: 24px;
  z-index: 10;
  padding: 12px 14px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  transition: opacity 0.25s ease, transform 0.25s ease, left 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}

body.sidebar-collapsed .photo-strip {
  left: 24px;
}

.photo-strip.hidden {
  display: block;
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
}

.photo-strip-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 4px 10px;
  cursor: pointer;
}

.photo-title {
  font-size: 14px;
  font-weight: 700;
  flex: 1;
}

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

.strip-chevron {
  font-size: 13px;
  color: var(--muted);
  transition: transform 0.2s ease;
}

.photo-strip.collapsed .strip-chevron {
  transform: rotate(-90deg);
}

.photo-strip.collapsed .photo-list {
  display: none;
}

.photo-strip.collapsed {
  padding-bottom: 12px;
}

.photo-list {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  scroll-behavior: smooth;
}

.photo-list::-webkit-scrollbar {
  height: 7px;
}
.photo-list::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.18);
  border-radius: 99px;
}

.photo-item {
  flex: 0 0 auto;
  width: 168px;
  height: 116px;
  padding: 0;
  cursor: pointer;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #1b2029;
  /* "촤라락" staggered reveal */
  opacity: 0;
  transform: translateX(18px) scale(0.96);
  animation: photo-in 0.45s ease forwards;
  animation-delay: calc(var(--i, 0) * 60ms);
}

.photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.photo-item:hover img {
  transform: scale(1.07);
}

@keyframes photo-in {
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

.photo-skeleton {
  flex: 0 0 auto;
  width: 168px;
  height: 116px;
  border-radius: 10px;
  background: linear-gradient(100deg, #1b2029 30%, #262d38 50%, #1b2029 70%);
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite linear;
}

@keyframes shimmer {
  to { background-position: -200% 0; }
}

.photo-empty {
  padding: 28px 8px;
  color: var(--muted);
  font-size: 13px;
}

.hidden {
  display: none;
}
.info-card.hidden {
  display: block; /* keep transition; visibility handled by opacity */
}

/* ---- Responsive ---- */
@media (max-width: 720px) {
  .brand-text {
    display: none;
  }
  .topbar {
    padding: 10px 14px;
  }
  .sidebar {
    top: 64px;
    width: min(280px, calc(100vw - 80px));
  }
  .info-card {
    top: 60px;
    width: calc(100vw - 20px);
    padding: 14px 16px;
  }
  .info-name {
    font-size: 18px;
  }
  .photo-strip {
    left: 10px;
    right: 10px;
    bottom: 10px;
    padding: 10px 12px 12px;
  }
  body.sidebar-collapsed .photo-strip {
    left: 10px;
  }
  .photo-item,
  .photo-skeleton {
    width: 132px;
    height: 92px;
  }
}

/* MapLibre attribution legibility on dark UI */
.maplibregl-ctrl-attrib {
  font-size: 10px;
}