/* === Palette: ColorBrewer YlOrBr (warm sequential) ===
 * Datawrapper guidelines applied. Light & dark themes share the same hue
 * families (warm earth for vice, sage olive for virtue) — only lightness
 * ladder is inverted. Switch via:
 *   - automatic: prefers-color-scheme: dark
 *   - manual: <html data-theme="dark"|"light"> — overrides the auto detect
 */
:root {
  --bg-base:    #fff7ec;
  --bg-card:    #fee8c8;
  --bg-elev:    #fdbb84;
  --accent:     #7f0000;
  --accent-hi:  #b30000;
  --accent-fg:  #fff7ec;
  --text:       #3a1a0a;
  --dim:        #8a6650;
  --border:     #f4d29c;
  --link:       #4a6da6;
  --star:       #d95f0e;
  --vice:       #8c510a;
  --virtue:     #5e7a4a;
  --input-bg:   #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-base:    #1a1411;
    --bg-card:    #2a201a;
    --bg-elev:    #3a2c20;
    --accent:     #e8a87c;
    --accent-hi:  #f0b88a;
    --accent-fg:  #1a1411;
    --text:       #f0e6d8;
    --dim:        #a89b88;
    --border:     #4a3828;
    --link:       #82c0ff;
    --star:       #f7b65c;
    --vice:       #c19064;
    --virtue:     #8aa67a;
    --input-bg:   #2a201a;
  }
}

:root[data-theme="dark"] {
  --bg-base:    #1a1411;
  --bg-card:    #2a201a;
  --bg-elev:    #3a2c20;
  --accent:     #e8a87c;
  --accent-hi:  #f0b88a;
  --accent-fg:  #1a1411;
  --text:       #f0e6d8;
  --dim:        #a89b88;
  --border:     #4a3828;
  --link:       #82c0ff;
  --star:       #f7b65c;
  --vice:       #c19064;
  --virtue:     #8aa67a;
  --input-bg:   #2a201a;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  background: var(--bg-base); color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}

#topbar {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px 8px;
}
#title { font-weight: 600; color: var(--accent); margin-bottom: 6px; }
#tabs { display: flex; gap: 4px; overflow-x: auto; }
#tabs a {
  padding: 6px 12px; border-radius: 16px; text-decoration: none;
  color: var(--text); white-space: nowrap; font-size: 13px;
  border: 1px solid transparent;
}
#tabs a.active { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }

.screen {
  padding: 16px;
  max-width: 900px;
  margin: 0 auto;
}

.card { background: var(--bg-card); border-radius: 8px; padding: 14px 16px; margin-bottom: 10px; border: 1px solid var(--border); }
.card h3 { margin: 0 0 6px 0; color: var(--accent); font-size: 15px; }
.card .meta { color: var(--dim); font-size: 12px; }

button, .btn {
  background: var(--accent); color: var(--accent-fg);
  border: 0; padding: 10px 16px; border-radius: 6px; cursor: pointer;
  font: inherit; font-weight: 500;
}
button:hover { background: var(--accent-hi); }

#toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: var(--accent-fg);
  padding: 10px 20px; border-radius: 24px; z-index: 100;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

input, textarea, select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border);
  border-radius: 6px; font: inherit; background: var(--input-bg); color: var(--text);
}
textarea { min-height: 120px; resize: vertical; }

/* Theme toggle button (top right of topbar) */
#theme-toggle {
  background: transparent; border: 0; padding: 4px 8px; font-size: 16px;
  color: var(--accent); cursor: pointer; line-height: 1;
}
#theme-toggle:hover { background: var(--bg-elev); border-radius: 4px; }

a.corpus-link { color: var(--link); text-decoration: none; border-bottom: 1px dashed; }
a.corpus-link:hover { background: rgba(108,182,255,0.1); }

/* Map view */
.metro-wrap { overflow-x: auto; padding: 10px 0; -webkit-overflow-scrolling: touch; }
.metro-svg { min-width: 700px; height: 240px; display: block; margin: 0 auto; }
.station { cursor: pointer; }
.station:hover circle { stroke: var(--accent); stroke-width: 3; }
.station:focus { outline: none; }
.station:focus circle { stroke: var(--star); stroke-width: 3; }

/* Roadmap view */
.rm-scroll { overflow-x: auto; padding-bottom: 8px; }
.rm-grid {
  display: grid;
  grid-template-columns: 80px repeat(12, minmax(60px, 1fr));
  gap: 3px; min-width: 800px;
}
.rm-cell {
  padding: 6px 4px; border-radius: 3px; text-align: center;
  font-size: 11px; cursor: pointer;
}
.rm-header {
  background: var(--bg-elev); color: var(--accent);
  font-weight: bold; font-size: 10px;
}
.rm-header.focus { background: var(--accent); color: var(--accent-fg); }
.rm-header.starred { background: var(--star); color: var(--vice); }
.rm-row-label {
  padding: 6px 4px; color: var(--dim); font-size: 10px;
  text-align: right; align-self: center;
}
.rm-vice { background: var(--vice); color: var(--accent-fg); }
.rm-vice.focus { background: var(--accent-hi); }
.rm-virtue { background: var(--virtue); color: var(--accent-fg); }
.rm-source { background: var(--bg-elev); color: var(--accent); font-weight: bold; }
.week-detail summary { cursor: pointer; padding: 6px 0; }
.week-detail details[open] summary { color: var(--accent); }
