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

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  height: 100vh; display: flex; flex-direction: column;
  --bg: #1a1a2e; --header-bg: #0f0f1e; --border: #2a2a4a;
  --text: #e0e0e0; --subtext: #888; --label: #ccc;
  --hover-border: #555; --popup-bg: #1e1e3a; --popup-border: #3a3a5a;
  --stats-bg: rgba(15,15,30,0.92); --spinner-track: #2a2a4a;
  background: var(--bg); color: var(--text);
  transition: background 0.2s, color 0.2s;
}
body.light {
  --bg: #f4f5f7; --header-bg: #ffffff; --border: #d0d4dc;
  --text: #1a1a2e; --subtext: #666; --label: #333;
  --hover-border: #aaa; --popup-bg: #ffffff; --popup-border: #ccc;
  --stats-bg: rgba(255,255,255,0.95); --spinner-track: #ddd;
}

header {
  padding: 10px 16px;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 1000;
}
.title-block { flex-shrink: 0; }
header h1 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
header .subtitle {
  font-size: 0.72rem;
  color: var(--subtext);
}

/* Header right-side controls */
.header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex-shrink: 0;
}

/* Search */
#search-wrap {
  position: relative;
  flex-shrink: 0;
}
#search-input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 26px 5px 10px;
  font-size: 0.75rem;
  color: var(--text);
  width: 200px;
  outline: none;
  transition: border-color 0.15s;
  font-family: inherit;
}
#search-input::placeholder { color: var(--subtext); }
#search-input:focus { border-color: #4a9eff; }
#search-clear {
  position: absolute;
  right: 7px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--subtext);
  font-size: 0.65rem;
  width: 16px;
  height: 16px;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  padding: 0;
  line-height: 1;
  transition: color 0.15s, background 0.15s;
}
#search-clear:hover { color: var(--text); background: var(--border); }
#search-results {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: var(--header-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 280px;
  max-height: 200px;
  overflow-y: auto;
  z-index: 2000;
  display: none;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.sr-item {
  padding: 7px 12px;
  font-size: 0.75rem;
  color: var(--text);
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  line-height: 1.4;
}
.sr-item:last-child { border-bottom: none; }
.sr-item:hover { background: var(--border); }
.sr-none { padding: 10px 12px; font-size: 0.75rem; color: var(--subtext); }

/* Language segmented control */
.btn-group {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  flex-shrink: 0;
}
.seg-btn {
  background: none;
  border: none;
  padding: 4px 10px;
  cursor: pointer;
  font-size: 0.72rem;
  font-family: inherit;
  color: var(--subtext);
  transition: background 0.15s, color 0.15s;
  letter-spacing: 0.03em;
}
.seg-btn.active {
  background: var(--border);
  color: var(--text);
  font-weight: 600;
}
.seg-btn:hover:not(.active) { color: var(--text); }

/* Theme icon button */
#theme-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text);
  flex-shrink: 0;
  padding: 0;
  transition: background 0.15s;
}
#theme-btn:hover { background: var(--border); }

#map { flex: 1; }

/* Floating legend panel */
#legend-panel {
  position: absolute;
  bottom: 30px;
  left: 10px;
  z-index: 1000;
  background: var(--stats-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  min-width: 210px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
  overflow: hidden;
}
#legend-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: #4a9eff;
  transition: width 0.4s ease;
}

#legend-body {
  display: flex;
  flex-direction: column;
  gap: 1px;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.25s ease, padding 0.25s ease;
  padding: 0 8px;
}
#legend-panel.open #legend-body {
  max-height: 400px;
  padding: 8px 8px 6px;
}

#legend-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  cursor: pointer;
  user-select: none;
  border-top: 1px solid transparent;
  transition: border-color 0.25s;
}
#legend-panel.open #legend-toggle { border-top-color: var(--border); }
#legend-toggle:hover .toggle-arrow { color: var(--text); }

.toggle-arrow {
  font-size: 0.55rem;
  color: var(--subtext);
}
#legend-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text);
}
#stats {
  margin-left: auto;
  font-size: 0.68rem;
  color: var(--subtext);
  white-space: nowrap;
}
@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50%       { opacity: 1;   }
}
.stats-loading { animation: pulse 1.5s ease-in-out infinite; }

.leg-item {
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  padding: 3px 4px;
  border-radius: 4px;
  border: 1px solid transparent;
  transition: border-color 0.15s;
  user-select: none;
}
.leg-item:hover { border-color: var(--hover-border); }
.leg-item.inactive { opacity: 0.35; }
.leg-swatch {
  width: 20px;
  height: 4px;
  border-radius: 2px;
  flex-shrink: 0;
}
.leg-label { font-size: 0.72rem; color: var(--label); white-space: nowrap; }

/* Splash screen */
#splash {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0,0,0,0.8);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
#splash-card {
  background: var(--header-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 12px 48px rgba(0,0,0,0.5);
}
#splash-scroll {
  overflow-y: auto;
  padding: 28px 28px 20px;
  flex: 1;
  min-height: 0;
}
#splash-scroll::-webkit-scrollbar { width: 4px; }
#splash-scroll::-webkit-scrollbar-track { background: transparent; }
#splash-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
#splash-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 10px;
}
#splash-about {
  font-size: 0.85rem;
  color: var(--label);
  line-height: 1.6;
  margin: 0 0 22px;
}
#splash-scroll h3 {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--subtext);
  margin: 0 0 10px;
}
#splash-classes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px 20px;
  margin-bottom: 22px;
}
.splash-cls {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--label);
}
.splash-cls-swatch {
  width: 22px;
  height: 4px;
  border-radius: 2px;
  flex-shrink: 0;
}
#splash-how-list {
  list-style: none;
  padding: 0;
  margin: 0 0 22px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
#splash-how-list li {
  font-size: 0.82rem;
  color: var(--label);
  padding-left: 14px;
  position: relative;
  line-height: 1.5;
}
#splash-how-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--subtext);
}
#splash-gdpr {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
#splash-privacy-text {
  font-size: 0.75rem;
  color: var(--subtext);
  line-height: 1.65;
  margin: 0;
}
#splash-privacy-text b { color: var(--label); }
#splash-actions {
  display: flex;
  gap: 10px;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
#splash-back {
  padding: 9px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: none;
  color: var(--subtext);
  font-size: 0.8rem;
  cursor: pointer;
  text-decoration: none;
  display: flex;
  align-items: center;
  font-family: inherit;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}
#splash-back:hover { background: var(--border); color: var(--text); }
#splash-accept {
  flex: 1;
  padding: 9px 16px;
  background: #4a9eff;
  border: none;
  border-radius: 6px;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s;
}
#splash-accept:hover { background: #3a8eef; }

#loading {
  position: fixed; inset: 0; background: var(--header-bg);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  z-index: 9999; gap: 16px;
}
#loading-text { font-size: 0.9rem; color: var(--subtext); }
.spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--spinner-track);
  border-top-color: #4a9eff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* MapLibre popup theming */
.maplibregl-popup-content {
  background: var(--popup-bg) !important;
  color: var(--text) !important;
  border: 1px solid var(--popup-border) !important;
  border-radius: 6px !important;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2) !important;
  padding: 10px 14px !important;
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 0.82rem;
  line-height: 1.6;
  min-width: 180px;
}
.maplibregl-popup-close-button {
  color: var(--subtext) !important;
  font-size: 1rem;
  padding: 4px 6px !important;
}
.maplibregl-popup-tip { border-top-color: var(--popup-bg) !important; }
body.light .maplibregl-popup-tip { border-top-color: var(--popup-bg) !important; }
.popup-class { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.popup-street { font-weight: 600; margin-bottom: 2px; }
.popup-detail { color: var(--subtext); font-size: 0.75rem; }