:root {
  --bg: #ffffff;
  --fg: #111418;
  --muted: #5a6470;
  --accent: #0b6cd1;
  --accent-fg: #ffffff;
  --border: #e3e6eb;
  --card-bg: #f7f8fa;
  --code-bg: #f0f2f5;
  --error: #c62828;
  --success: #2e7d32;
  --max-w: 1100px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --fg: #e6e8eb;
    --muted: #9aa3ad;
    --accent: #4ea3ff;
    --accent-fg: #0f1216;
    --border: #232830;
    --card-bg: #161a1f;
    --code-bg: #1a1e24;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header, main, footer { max-width: var(--max-w); margin: 0 auto; padding: 1rem 1.25rem; }

header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

header .brand { font-weight: 700; font-size: 1.1rem; }
header nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
header nav a { color: var(--fg); }
header nav a[aria-current="page"] { color: var(--accent); font-weight: 600; }

h1 { font-size: 1.75rem; margin-top: 0; }
h2 { font-size: 1.3rem; border-bottom: 1px solid var(--border); padding-bottom: 0.25rem; }
h3 { font-size: 1.05rem; margin-bottom: 0.25rem; }

.totals { display: flex; gap: 2rem; flex-wrap: wrap; margin: 1rem 0 1.5rem; }
.totals .stat { background: var(--card-bg); border: 1px solid var(--border); padding: 0.75rem 1rem; border-radius: 6px; min-width: 120px; }
.totals .stat .num { font-size: 1.6rem; font-weight: 700; display: block; }
.totals .stat .label { color: var(--muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; }

input[type="search"], input[type="text"], textarea, select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
}

textarea { min-height: 8rem; font-family: inherit; }

button, .btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-fg);
  border-radius: 4px;
  font: inherit;
  cursor: pointer;
}
button:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.secondary { background: transparent; color: var(--accent); }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 0.75rem; }

.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 0.75rem; margin: 0.5rem 0 1.5rem; }
.thumb-card {
  display: block;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.7rem 0.7rem;
  color: var(--fg);
  text-decoration: none;
}
.thumb-card:hover { border-color: var(--accent); text-decoration: none; }
.thumb-svg { display: block; width: 100%; height: auto; background: var(--bg); border: 1px solid var(--border); border-radius: 4px; margin-bottom: 0.4rem; }
.thumb-title { font-size: 0.9rem; font-weight: 600; word-break: break-all; }
.card { background: var(--card-bg); border: 1px solid var(--border); padding: 0.85rem 1rem; border-radius: 6px; }
.card h3 { margin-top: 0; }
.card .meta { color: var(--muted); font-size: 0.85rem; }

table { width: 100%; border-collapse: collapse; margin: 0.5rem 0 1.5rem; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
th { background: var(--card-bg); }

code, pre { font-family: ui-monospace, "SF Mono", Menlo, monospace; background: var(--code-bg); }
code { padding: 0.1rem 0.35rem; border-radius: 3px; font-size: 0.9em; }
pre { padding: 0.85rem 1rem; border-radius: 6px; overflow-x: auto; }

#map, #preview-map { width: 100%; height: 420px; border: 1px solid var(--border); border-radius: 6px; background: var(--card-bg); }
#geometry-canvas { width: 100%; height: 480px; border: 1px solid var(--border); border-radius: 6px; background: var(--card-bg); display: block; }

.dropzone {
  display: block;
  margin: 1.25rem 0;
  border: 2px dashed var(--border);
  border-radius: 6px;
  padding: 2rem;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
}
.dropzone.drag { border-color: var(--accent); color: var(--accent); }

.mission { font-size: 1.05rem; line-height: 1.55; margin: 0.5rem 0 1rem; }

.terminal {
  background: #0e1116;
  color: #d6dde6;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.88rem;
  padding: 0.85rem 1rem;
  border-radius: 6px;
  max-height: 380px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
}
.terminal .muted { color: #7d8893; }
.terminal .success { color: #6abf69; }
.terminal .error { color: #f06262; }

.view-toggle { display: flex; gap: 0.5rem; margin: 0.75rem 0; flex-wrap: wrap; }
.view-toggle button[aria-pressed="true"] { background: var(--accent); color: var(--accent-fg); }

.stat-section { margin: 0.5rem 0 1.5rem; }

.bars { display: flex; flex-direction: column; gap: 0.35rem; margin: 0.5rem 0 1.5rem; }
.bar-row { display: grid; grid-template-columns: minmax(8rem, 14rem) 1fr 3rem; align-items: center; gap: 0.75rem; font-size: 0.9rem; }
.bar-label { color: var(--fg); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar-track { background: var(--card-bg); border: 1px solid var(--border); border-radius: 3px; height: 0.85rem; overflow: hidden; }
.bar-fill { background: var(--accent); height: 100%; }
.bar-value { color: var(--muted); text-align: right; font-variant-numeric: tabular-nums; }

ol.tight, ul.tight { margin: 0.25rem 0 0; padding-left: 1.25rem; }
ol.tight li, ul.tight li { margin: 0.1rem 0; }

.error { color: var(--error); }
.success { color: var(--success); }
.muted { color: var(--muted); }
.sr-only { position: absolute; left: -9999px; }

footer { color: var(--muted); font-size: 0.9rem; border-top: 1px solid var(--border); margin-top: 3rem; }
footer a { color: var(--muted); text-decoration: underline; }

.confidence-confident { color: var(--success); font-weight: 600; }
.confidence-uncertain { color: #c47a00; font-weight: 600; }
.confidence-low { color: var(--muted); }