/* ============================================
   BẢN ĐỒ HÀNH CHÍNH VIỆT NAM — Dark Theme
   ============================================ */

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

:root {
  --bg-base:    #080c18;
  --bg-panel:   #0d1220;
  --bg-hover:   #141c35;
  --border:     #1c2a4a;
  --accent:     #3b82f6;
  --accent-glow:#60a5fa;
  --text:       #e2e8f0;
  --text-muted: #64748b;
  --text-dim:   #94a3b8;
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

html, body {
  height: 100%;
  background: var(--bg-base);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  overflow: hidden;
}

/* ── HEADER ── */
header {
  height: 52px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  flex-shrink: 0;
  z-index: 100;
}

.header-left { display: flex; align-items: center; gap: 12px; }

.logo-icon {
  font-size: 22px;
  color: var(--accent);
  line-height: 1;
}

.logo-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.01em;
}

.logo-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 1px;
}

.header-right {
  font-size: 11px;
  color: var(--text-muted);
}

/* ── LAYOUT ── */
.layout {
  display: flex;
  height: calc(100vh - 52px - 30px);
}

/* ── SIDEBAR ── */
.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.sidebar-block {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.block-title {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-glow);
  margin-bottom: 10px;
}

/* ── PROVINCE LIST ── */
.province-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.province-btn {
  width: 100%;
  padding: 7px 10px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font);
  font-size: 13px;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.province-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.province-btn.active {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.4);
  color: #93c5fd;
}

/* Tỉnh đang load */
.province-btn.loading {
  opacity: 0.7;
  cursor: wait;
}
.province-btn.loading .province-dot {
  animation: pulse 1s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.7); }
}

/* Tỉnh đã load */
.province-btn.loaded {
  border-color: rgba(255,255,255,0.15);
  background: var(--bg-hover);
}
.province-btn.loaded .province-dot {
  box-shadow: 0 0 6px currentColor;
}

/* Status text nhỏ bên phải */
.province-btn-name { flex: 1; }
.province-btn-status {
  font-size: 9px;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.province-btn.loaded  .province-btn-status::before { content: '●'; color: #4ade80; }
.province-btn.loading .province-btn-status::before { content: '…'; color: var(--text-muted); }

/* Nút Toàn quốc */
.province-btn--national {
  border-color: rgba(245, 158, 11, 0.3) !important;
  color: #fbbf24 !important;
  font-weight: 600;
}
.province-btn--national:hover { background: rgba(245,158,11,0.08) !important; }

/* Nút unload (×) trong legend */
.unload-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
  border-radius: 3px;
  flex-shrink: 0;
}
.unload-btn:hover { color: #f87171; background: rgba(248,113,113,0.1); }

.province-btn.loading {
  opacity: 0.5;
  cursor: wait;
}

.province-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
}

.province-btn.active .province-dot { background: var(--accent-glow); }

/* ── LEGEND ── */
.district-legend {
  display: flex;
  flex-direction: column;
  gap: 5px;
  max-height: 280px;
  overflow-y: auto;
}

.district-legend::-webkit-scrollbar { width: 3px; }
.district-legend::-webkit-scrollbar-thumb { background: var(--border); }

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-dim);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  transition: background 0.1s;
}

.legend-item:hover { background: var(--bg-hover); color: var(--text); }

.legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
  opacity: 0.85;
}

/* ── UNIT INFO ── */
.unit-info { font-size: 12px; line-height: 1.7; }

.info-hint { color: var(--text-muted); font-style: italic; }

.info-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.info-row {
  color: var(--text-dim);
  display: flex;
  gap: 6px;
}

.info-label { color: var(--text-muted); flex-shrink: 0; }

.info-badge {
  display: inline-block;
  margin-top: 8px;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-xa   { background: rgba(99, 202, 183, 0.15); color: #63cab7; }
.badge-phuong { background: rgba(96, 165, 250, 0.15); color: #60a5fa; }
.badge-thi-tran { background: rgba(251, 191, 36, 0.15); color: #fbbf24; }

/* ── MAP ── */
.map-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
}

#map {
  width: 100%;
  height: 100%;
}

/* Override Leaflet UI colors */
.leaflet-control-zoom a {
  background: var(--bg-panel) !important;
  color: var(--text-dim) !important;
  border-color: var(--border) !important;
}
.leaflet-control-zoom a:hover { color: var(--text) !important; }

.leaflet-control-attribution {
  background: rgba(8, 12, 24, 0.7) !important;
  color: var(--text-muted) !important;
  font-size: 10px !important;
}
.leaflet-control-attribution a { color: var(--text-muted) !important; }

/* ── LOADING OVERLAY ── */
.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(8, 12, 24, 0.88);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 500;
  backdrop-filter: blur(2px);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin-bottom: 16px;
}

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

.loading-text {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 4px;
}

.loading-sub {
  font-size: 12px;
  color: var(--text-muted);
}

/* ── STATUS BAR ── */
footer.statusbar {
  height: 30px;
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 4px;
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}

footer.statusbar strong { color: var(--text-dim); font-weight: 600; }

.sep { color: var(--border); margin: 0 6px; }

/* ── BLOCK TITLE ROW (có actions bên phải) ── */
.block-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.block-title-row .block-title { margin-bottom: 0; }

.block-actions { display: flex; gap: 4px; }

.mini-btn {
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--accent-glow);
  font-family: var(--font);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background 0.15s;
}
.mini-btn:hover { background: var(--bg-hover); }
.mini-btn.dim { color: var(--text-muted); }

/* ── ROAD STATUS ── */
.road-status {
  font-size: 11px;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 6px;
  min-height: 14px;
}

/* ── ROAD TOGGLES ── */
.road-toggles { display: flex; flex-direction: column; gap: 4px; }

.road-toggle-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 6px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.12s;
}
.road-toggle-item:hover { background: var(--bg-hover); }

.road-line-preview {
  width: 28px;
  flex-shrink: 0;
  border-radius: 2px;
}

.road-label {
  flex: 1;
  font-size: 12px;
  color: var(--text-dim);
  transition: color 0.12s;
}
.road-toggle-item.active .road-label { color: var(--text); }
.road-toggle-item.inactive .road-label { color: var(--text-muted); text-decoration: line-through; }

.road-count {
  font-size: 10px;
  color: var(--text-muted);
  min-width: 24px;
  text-align: right;
}

.road-switch {
  width: 32px;
  height: 16px;
  border-radius: 8px;
  background: var(--border);
  position: relative;
  flex-shrink: 0;
  cursor: pointer;
  transition: background 0.2s;
  border: none;
}
.road-switch::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-muted);
  top: 2px;
  left: 2px;
  transition: transform 0.2s, background 0.2s;
}
.road-switch.on {
  background: rgba(59, 130, 246, 0.35);
}
.road-switch.on::after {
  transform: translateX(16px);
  background: var(--accent-glow);
}

/* ── ROAD LOADER (non-blocking, góc phải) ── */
.road-loader {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(13, 18, 32, 0.85);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-dim);
  z-index: 400;
  backdrop-filter: blur(4px);
}
.road-loader-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 2px solid var(--border);
  border-top-color: #f59e0b;
  animation: spin 0.8s linear infinite;
}

/* ── SELECTED XÃ — glow effect ── */
.leaflet-interactive.xa-selected {
  filter: drop-shadow(0 0 6px rgba(255,255,255,0.7))
          drop-shadow(0 0 12px rgba(100,180,255,0.5));
}

/* ── LEAFLET TOOLTIP ── */
.leaflet-tooltip {
  background: var(--bg-panel) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  font-family: var(--font) !important;
  font-size: 12px !important;
  padding: 4px 8px !important;
  border-radius: 4px !important;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4) !important;
  white-space: nowrap;
}

.leaflet-tooltip::before { display: none; }

/* ── CHẾ ĐỘ MÀU — TABS ── */
.colormode-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 8px;
}

.colormode-btn {
  flex: 1;
  padding: 5px 8px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}
.colormode-btn:hover { background: var(--bg-hover); color: var(--text-dim); }
.colormode-btn.active {
  background: rgba(59,130,246,0.15);
  border-color: rgba(59,130,246,0.4);
  color: #93c5fd;
  font-weight: 600;
}

/* ── TERRAIN LEGEND ── */
.terrain-legend-title {
  font-size: 10px;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-style: italic;
}

.terrain-zone-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0;
  font-size: 12px;
  color: var(--text-dim);
}

.terrain-swatch {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  flex-shrink: 0;
}

/* Trong info panel */
.terrain-info-row {
  margin-top: 4px;
  gap: 6px !important;
  font-size: 12px;
  color: var(--text-dim);
}

.terrain-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid;
  flex-shrink: 0;
  display: inline-block;
}

/* ── ROAD TOOLTIP ── */
.road-tip.leaflet-tooltip {
  background: rgba(13, 18, 32, 0.92) !important;
  border: 1px solid rgba(255,255,255,0.12) !important;
  color: #e2e8f0 !important;
  font-size: 11px !important;
  padding: 3px 7px !important;
}

/* ── PROVINCE SEARCH ── */
.province-search {
  width: 100%;
  padding: 6px 10px;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font);
  font-size: 12px;
  outline: none;
  margin-bottom: 6px;
  transition: border-color 0.15s;
}
.province-search::placeholder { color: var(--text-muted); }
.province-search:focus { border-color: var(--accent); }

/* ── REGION TABS ── */
.region-tabs {
  display: flex;
  gap: 3px;
  margin-bottom: 8px;
}
.region-tab {
  flex: 1;
  padding: 4px 0;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: all 0.15s;
}
.region-tab:hover { background: var(--bg-hover); color: var(--text-dim); }
.region-tab.active {
  background: rgba(59,130,246,0.15);
  border-color: rgba(59,130,246,0.4);
  color: #93c5fd;
}

/* ── SIDEBAR TOGGLE (mobile) ── */
.sidebar-toggle {
  display: none;
  position: fixed;
  top: 60px;
  left: 8px;
  z-index: 600;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  color: var(--text);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

/* ── LEGEND ITEM — clickable ── */
.legend-item { cursor: pointer; }

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  .sidebar {
    position: fixed;
    top: 52px;
    left: 0;
    bottom: 30px;
    width: 240px;
    z-index: 500;
    transition: transform 0.28s ease;
  }
  .sidebar.collapsed { transform: translateX(-100%); }
  .sidebar-toggle { display: flex; }
}