:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #1c2333;
  --muted: #5b6475;
  --line: #e2e6ef;
  --brand: #1a56db;
  --brand-dark: #1442a8;
  --good: #0f7a3d;
  --good-bg: #e8f6ee;
  --bad: #b42318;
  --bad-bg: #fdecea;
  --radius: 12px;
  --max: 980px;
  color-scheme: light;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", Arial, sans-serif;
}
a { color: var(--brand); }
img { max-width: 100%; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }

/* Header */
.site-head { background: var(--card); border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 20px; padding-top: 10px; padding-bottom: 10px; }
.logo { font-weight: 800; font-size: 1.15rem; color: var(--text); text-decoration: none; }
.logo span { color: var(--brand); }
.site-nav { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 0.95rem; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current] { color: var(--brand); }

main { padding: 20px 0 40px; }
h1 { font-size: clamp(1.5rem, 4vw, 2.1rem); line-height: 1.25; margin: 0 0 8px; }
h2 { font-size: 1.3rem; margin: 32px 0 10px; }
h3 { font-size: 1.1rem; margin: 0; }
.lead { color: var(--muted); font-size: 1.05rem; margin: 0 0 20px; max-width: 70ch; }
.muted { color: var(--muted); }
.crumbs { font-size: 0.85rem; color: var(--muted); margin-bottom: 8px; }
.crumbs a { color: var(--muted); }

.card, .doctool {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}
.privacy-note { display: inline-block; background: var(--good-bg); color: var(--good); border-radius: 999px; padding: 4px 12px; font-size: 0.85rem; margin-bottom: 16px; }

/* Buttons */
.btn, .btn-secondary {
  display: inline-block; border: 0; border-radius: 10px; padding: 11px 18px;
  font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; text-align: center;
}
.btn { background: var(--brand); color: #fff; }
.btn:hover { background: var(--brand-dark); }
.btn.disabled, .btn:disabled { opacity: 0.5; pointer-events: none; }
.btn-secondary { background: #eef2fb; color: var(--brand); }
.btn-link { background: none; border: 0; color: var(--muted); text-decoration: underline; cursor: pointer; font: inherit; padding: 6px 0; }

/* Document tool */
.dt-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 12px; margin-bottom: 12px; }
.dt-spec { margin: 0; color: var(--muted); font-size: 0.9rem; }
.dt-drop {
  display: flex; align-items: center; justify-content: center; text-align: center;
  min-height: 140px; border: 2px dashed #b9c4dc; border-radius: var(--radius);
  background: #fafbff; cursor: pointer; padding: 16px;
}
.dt-drop.over { border-color: var(--brand); background: #eef2fb; }
.dt-drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.dt-drop:focus-within { outline: 3px solid #b6c8f5; }
.dt-drop strong { color: var(--brand); font-size: 1.05rem; }
.dt-error { color: var(--bad); background: var(--bad-bg); padding: 8px 12px; border-radius: 8px; }
.dt-editor { display: grid; gap: 12px; }
.dt-crop-wrap { max-width: 320px; margin: 0 auto; width: 100%; }
.dt-crop { display: block; width: 100%; border-radius: 6px; border: 1px solid var(--line); touch-action: none; cursor: grab; background: #fff; }
.dt-crop:active { cursor: grabbing; }
.dt-hint { margin: 0; text-align: center; color: var(--muted); font-size: 0.85rem; }
.dt-controls { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; justify-content: center; }
.dt-zoom { display: flex; align-items: center; gap: 8px; flex: 1 1 200px; max-width: 320px; }
.dt-zoom input { flex: 1; }
.dt-check { display: flex; gap: 8px; align-items: center; justify-content: center; font-size: 0.95rem; }

.dt-namedate { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.dt-namedate label, .form-grid label { display: grid; gap: 4px; font-size: 0.9rem; color: var(--muted); }
input[type=text], input[type=number], input[type=date], select {
  font: inherit; color: var(--text); padding: 9px 10px; border: 1px solid #c9d1e1; border-radius: 8px; background: #fff; width: 100%;
}
.dt-result { display: grid; grid-template-columns: 120px 1fr; gap: 16px; align-items: start; border-top: 1px solid var(--line); padding-top: 14px; }
.dt-preview { background: repeating-conic-gradient(#f0f2f7 0% 25%, #fff 0% 50%) 50% / 16px 16px; border: 1px solid var(--line); border-radius: 6px; padding: 6px; text-align: center; }
.dt-preview img { display: block; margin: 0 auto; max-height: 160px; }
.dt-meta p { margin: 0 0 8px; }
.dt-note:empty { display: none; }
.dt-note { font-size: 0.88rem; color: var(--muted); }
.dt-download { margin-right: 12px; }

/* Forms */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.form-grid .wide { grid-column: 1 / -1; }
.check-row { display: flex; gap: 8px; align-items: center; }

/* Age result */
.age-out { margin-top: 16px; border-top: 1px solid var(--line); padding-top: 12px; }
.age-big { font-size: 1.5rem; font-weight: 700; margin: 0; }
.good { color: var(--good); background: var(--good-bg); padding: 8px 12px; border-radius: 8px; }
.bad { color: var(--bad); background: var(--bad-bg); padding: 8px 12px; border-radius: 8px; }

/* PDF list */
.pdf-list { list-style: none; padding: 0; margin: 12px 0; display: grid; gap: 8px; }
.pdf-list li { display: flex; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 8px; padding: 6px; }
.pdf-list img { width: 44px; height: 44px; object-fit: cover; border-radius: 4px; }
.pdf-name { flex: 1; font-size: 0.9rem; overflow-wrap: anywhere; }
.pdf-actions button { border: 1px solid var(--line); background: #fff; border-radius: 6px; width: 34px; height: 34px; cursor: pointer; }
.pdf-actions button:disabled { opacity: 0.35; }
.pdf-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; margin-top: 8px; }
.pdf-row label { display: grid; gap: 4px; font-size: 0.9rem; color: var(--muted); flex: 1 1 160px; }
.pdf-status { margin: 12px 0 0; }

/* Content */
.spec-table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: var(--radius); overflow: hidden; font-size: 0.95rem; }
.spec-table th, .spec-table td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec-table th { background: #f0f3fa; font-weight: 600; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.callout { border-left: 4px solid #e0a100; background: #fff8e6; padding: 10px 14px; border-radius: 6px; margin: 16px 0; }
.tile-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; padding: 0; list-style: none; }
.tile { display: block; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; text-decoration: none; color: var(--text); height: 100%; }
.tile:hover { border-color: var(--brand); }
.tile strong { display: block; color: var(--brand); }
.tile small { color: var(--muted); }
details { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; margin-bottom: 8px; }
summary { cursor: pointer; font-weight: 600; }
.prose { max-width: 72ch; }
.ad-slot { margin: 24px 0; min-height: 100px; }

.site-foot { border-top: 1px solid var(--line); background: var(--card); padding: 20px 0; font-size: 0.88rem; color: var(--muted); }
.site-foot nav { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-bottom: 8px; }
.site-foot a { color: var(--muted); }

@media (max-width: 520px) {
  .dt-result { grid-template-columns: 1fr; }
  .dt-namedate { grid-template-columns: 1fr; }
  .dt-download { display: block; margin: 0 0 6px; }
}

/* Link to the sister site. Plain and clearly labelled, so it never looks like an ad. */
.sister-card { border: 1px solid var(--line); border-left: 4px solid var(--sister-accent, #64748b); background: #fff; border-radius: 10px; padding: 12px 14px; margin: 24px 0; }
.sister-card p { margin: 4px 0; }
.sister-card .sister-tag { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: #64748b; margin: 0; }