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

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #232734;
  --border: #2e3345;
  --text: #e4e5ea;
  --text-dim: #8b8fa3;
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --info: #3b82f6;
  --sidebar-w: 320px;
  --nav-h: 48px;
}

html, body { height: 100%; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: var(--text); }

.hidden { display: none !important; }

/* ── Login ── */
#login-screen {
  display: flex; align-items: center; justify-content: center;
  height: 100vh; background: var(--bg);
}
.login-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 40px; width: 360px; text-align: center;
}
.login-logo { margin-bottom: 16px; }
.login-card h1 { font-size: 20px; font-weight: 600; margin-bottom: 4px; }
.login-subtitle { color: var(--text-dim); font-size: 14px; margin-bottom: 24px; }
#login-form input {
  width: 100%; padding: 10px 14px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 14px; outline: none; margin-bottom: 12px;
}
#login-form input:focus { border-color: var(--primary); }
#login-form button {
  width: 100%; padding: 10px; background: var(--primary); color: #fff; border: none;
  border-radius: 8px; font-size: 14px; font-weight: 500; cursor: pointer;
}
#login-form button:hover { background: var(--primary-hover); }
#login-error { color: var(--danger); font-size: 13px; margin-top: 8px; }

/* ── Navbar ── */
#navbar {
  display: flex; align-items: center; height: var(--nav-h);
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 0 12px; position: relative; z-index: 1000;
}
.nav-left { display: flex; align-items: center; gap: 8px; }
.nav-title { font-size: 14px; font-weight: 600; white-space: nowrap; }
.nav-tabs { display: flex; gap: 2px; margin-left: 24px; }
.nav-tab {
  padding: 6px 16px; background: none; border: none; color: var(--text-dim);
  font-size: 13px; font-weight: 500; cursor: pointer; border-radius: 6px;
}
.nav-tab:hover { color: var(--text); background: var(--surface2); }
.nav-tab.active { color: var(--text); background: var(--primary); }
.nav-right { margin-left: auto; }
.nav-btn {
  background: none; border: none; color: var(--text-dim); cursor: pointer;
  padding: 6px; border-radius: 6px; display: flex; align-items: center;
}
.nav-btn:hover { color: var(--text); background: var(--surface2); }

/* ── Views ── */
.view { display: none; height: calc(100vh - var(--nav-h)); }
.view.active { display: flex; }

/* ── Map View ── */
#map-view { position: relative; }
#map { flex: 1; z-index: 1; }

/* ── Sidebar ── */
#sidebar {
  width: var(--sidebar-w); background: var(--surface); border-right: 1px solid var(--border);
  overflow-y: auto; flex-shrink: 0; z-index: 500;
  display: flex; flex-direction: column;
}
.sidebar-section { padding: 14px 16px; border-bottom: 1px solid var(--border); }
.sidebar-section h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-dim); margin-bottom: 10px; }

/* Layer toggles */
.layer-toggle { display: flex; align-items: center; gap: 8px; padding: 4px 0; font-size: 13px; cursor: pointer; }
.layer-toggle input { accent-color: var(--primary); }
.layer-swatch { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }

/* Search */
#search-input {
  width: 100%; padding: 8px 10px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-size: 13px; outline: none;
}
#search-input:focus { border-color: var(--primary); }
#search-results {
  list-style: none; max-height: 200px; overflow-y: auto; margin-top: 6px;
}
#search-results li {
  padding: 6px 8px; font-size: 13px; cursor: pointer; border-radius: 4px;
}
#search-results li:hover { background: var(--surface2); }
.search-type { font-size: 11px; color: var(--text-dim); margin-left: 4px; }

/* Detail panel */
#detail-content { font-size: 13px; line-height: 1.6; }
.detail-row { display: flex; justify-content: space-between; padding: 2px 0; }
.detail-label { color: var(--text-dim); }
.detail-value { font-weight: 500; text-align: right; }
.detail-divider { border-top: 1px solid var(--border); margin: 8px 0; }

/* ── Stats View ── */
#stats-view { overflow-y: auto; padding: 24px; justify-content: center; }
#stats-container {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  max-width: 960px; width: 100%;
}
.stat-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 20px;
}
.stat-card.wide { grid-column: span 2; }
.stat-card.full { grid-column: span 3; }
.stat-card h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-dim); margin-bottom: 12px; }
.stat-big { font-size: 32px; font-weight: 700; line-height: 1; }
.stat-unit { font-size: 14px; font-weight: 400; color: var(--text-dim); margin-left: 4px; }
.stat-sub { font-size: 13px; color: var(--text-dim); margin-top: 6px; }
.stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.stat-item { }
.stat-item-value { font-size: 20px; font-weight: 600; }
.stat-item-label { font-size: 12px; color: var(--text-dim); margin-top: 2px; }

/* Bar chart */
.bar-chart { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.bar-row { display: flex; align-items: center; gap: 8px; }
.bar-label { width: 80px; font-size: 12px; color: var(--text-dim); text-align: right; flex-shrink: 0; }
.bar-track { flex: 1; height: 20px; background: var(--bg); border-radius: 4px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 4px; display: flex; align-items: center; padding-left: 8px; font-size: 11px; font-weight: 600; color: #fff; min-width: 30px; }
.bar-count { width: 40px; font-size: 12px; text-align: right; flex-shrink: 0; }

/* ── Mobile ── */
@media (max-width: 768px) {
  .nav-title { display: none; }
  #sidebar {
    position: absolute; left: 0; top: 0; bottom: 0;
    transform: translateX(-100%); transition: transform 0.2s ease;
    box-shadow: 4px 0 20px rgba(0,0,0,0.4);
  }
  #sidebar.open { transform: translateX(0); }
  #stats-container { grid-template-columns: 1fr; }
  .stat-card.wide, .stat-card.full { grid-column: span 1; }
}