:root {
  --color-bg: #04141f;
  --color-sidebar: #061926;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-text: #ddf0ee;
  --color-text-muted: #5a8f9f;
  --color-accent: #00c8b4;
  --scrubber-height: 68px;
  --font: system-ui, -apple-system, sans-serif;
}

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

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

/* ── Two-column layout ─────────────────────────────────────── */
#layout {
  display: flex;
  flex-direction: row;
  height: 100vh;
  width: 100vw;
}

/* ── Map column ────────────────────────────────────────────── */
#map-col {
  flex: 3;
  display: flex;
  flex-direction: column;
  min-width: 0; /* prevent flex blowout */
}

#map {
  flex: 1;
}

/* ── Scrubber bar ──────────────────────────────────────────── */
#scrubber {
  flex-shrink: 0;
  height: var(--scrubber-height);
  background: #0d1b2a;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
}

#play-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-accent);
  background: transparent;
  color: var(--color-accent);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}

#play-btn:hover {
  background: rgba(0, 200, 180, 0.15);
}

#year-label, #year-end-label {
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  min-width: 32px;
}

#year-end-label {
  color: var(--color-text-muted);
}

#year-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--color-border);
  outline: none;
  cursor: pointer;
}

#year-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: pointer;
  border: 2px solid var(--color-bg);
}

#year-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: pointer;
  border: 2px solid var(--color-bg);
}

/* ── Sidebar ───────────────────────────────────────────────── */
#sidebar {
  flex: 2;
  min-width: 0;
  background: var(--color-sidebar);
  border-left: 1px solid var(--color-border);
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  overflow-y: auto;
}

#sidebar h1 {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 8px;
}

#sidebar .subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 56px;
}

.stat-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 48px;
}

.stat-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.stat-value {
  font-size: 64px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}

.stat-unit {
  display: block;
  font-size: 15px;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-top: 4px;
}

#sidebar .note {
  margin-top: auto;
  padding-top: 32px;
  font-size: 12px;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  line-height: 1.5;
}

/* ── MapLibre popup ────────────────────────────────────────── */
.maplibregl-popup-content {
  color: #0d2535;
  font-family: var(--font);
  font-size: 12px;
  line-height: 1.6;
  padding: 10px 12px;
  border-radius: 6px;
}

/* ── Drawer toggle handle (hidden on desktop) ──────────────── */
#drawer-toggle {
  display: none;
}

.drawer-pill {
  width: 40px;
  height: 4px;
  background: var(--color-text-muted);
  border-radius: 2px;
  opacity: 0.45;
}

/* ── Mobile: full-screen map + bottom drawer ───────────────── */
@media (max-width: 700px) {
  #layout {
    display: block;
    height: 100vh;    /* fallback for older browsers */
    height: 100dvh;   /* dvh excludes browser chrome (address bar, home indicator) */
  }

  #map-col {
    width: 100%;
    height: 100vh;    /* fallback */
    height: 100dvh;
  }

  /* Sidebar becomes a fixed bottom drawer, collapsed by default */
  #sidebar {
    position: fixed;
    bottom: var(--scrubber-height);
    left: 0;
    right: 0;
    width: 100%;
    max-height: 40px;   /* collapsed: shows handle only */
    overflow: hidden;
    transition: max-height 0.3s ease;
    border-left: none;
    border-top: 1px solid var(--color-border);
    border-radius: 12px 12px 0 0;
    padding: 0 20px 24px;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    text-align: left;
  }

  #sidebar.open {
    max-height: 65vh;
    overflow-y: auto;
  }

  #sidebar h1 {
    font-size: 20px;
    margin-top: 8px;
  }

  #sidebar .subtitle {
    margin-bottom: 28px;
  }

  .stat-value {
    font-size: 48px;
  }

  .stat-block {
    margin-bottom: 28px;
  }

  #drawer-toggle {
    display: flex;
    width: 100%;
    min-height: 40px;
    padding: 10px 0 6px;
    background: none;
    border: none;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  #sidebar .note {
    margin-top: 24px;
  }

  /* Move attribution to top-right on mobile so it doesn't crowd the bottom controls */
  .maplibregl-ctrl-bottom-right {
    bottom: auto;
    top: 0;
  }
}