:root {
  --bg: #f5f7f9;
  --surface: #ffffff;
  --surface-alt: #eef3f8;
  --text: #0f1a24;
  --muted: #4a5a6a;
  --border: #d7dee6;
  --accent: #1f6feb;
  --accent-strong: #1857bf;
  --good: #16a34a;
  --good-soft: #dcfce7;
  --warn: #b45309;
  --warn-soft: #fef3c7;
  --bad: #b91c1c;
  --bad-soft: #fde2e2;
  --shadow: 0 1px 2px rgba(15, 26, 36, 0.06), 0 6px 18px rgba(15, 26, 36, 0.06);
  --radius: 10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}
img, svg { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  position: static;
  width: auto;
  height: auto;
  padding: 8px 12px;
  background: var(--surface);
  border: 2px solid var(--accent);
  z-index: 1000;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 1.05rem;
}
.brand:hover { text-decoration: none; }
.brand-mark { color: var(--accent); }
.site-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.site-nav a {
  color: var(--text);
  font-weight: 500;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--accent); text-decoration: none; border-bottom-color: var(--accent); }

.hero {
  padding: 64px 0 48px;
  background:
    radial-gradient(1200px 400px at 80% -40%, rgba(31, 111, 235, 0.12), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #eef3f8 100%);
}
.hero-inner { max-width: 760px; }
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-strong);
  background: var(--good-soft);
  padding: 4px 10px;
  border-radius: 999px;
}
.hero h1 {
  font-size: clamp(1.9rem, 3.2vw, 2.6rem);
  line-height: 1.15;
  margin: 14px 0 12px;
}
.lede { font-size: 1.1rem; color: var(--muted); margin: 0 0 20px; }
.hero-cta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.hero-note { color: var(--muted); font-size: 0.9rem; margin: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 0.95rem;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-strong); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface-alt); text-decoration: none; }

.how { padding: 48px 0; }
h2 { font-size: 1.7rem; margin: 0 0 18px; }
.muted { color: var(--muted); }
.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.how-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.how-num {
  display: inline-flex;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 10px;
}
.how-card h3 { margin: 0 0 6px; font-size: 1.05rem; }
.how-card p { margin: 0; color: var(--muted); }

.worksheet {
  padding: 48px 0;
  background: linear-gradient(180deg, var(--surface-alt) 0%, var(--bg) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.worksheet-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 28px;
  align-items: start;
}
.worksheet-form, .result-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.q { border: 0; padding: 0; margin: 0 0 18px; }
.q legend { font-weight: 700; margin-bottom: 8px; font-size: 1rem; }
.q-hint { margin: -4px 0 8px; color: var(--muted); font-size: 0.9rem; }
.option-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 14px;
}
.option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
  font-size: 0.95rem;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.option:hover { border-color: var(--accent); }
.option input { accent-color: var(--accent); }
.option:has(input:checked) {
  border-color: var(--accent);
  background: #eff5ff;
}
.form-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.result-panel { position: sticky; top: 80px; }
.result-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.result-head h2 { font-size: 1.1rem; margin: 0; }
.result-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--surface-alt);
  color: var(--muted);
}
.result-badge.live { background: var(--good-soft); color: #166534; }
.result-empty { color: var(--muted); font-size: 0.95rem; padding: 16px 0; }
.result-empty svg { color: var(--muted); margin-bottom: 10px; }
.hidden { display: none; }
.result-top {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: center;
  padding: 14px;
  background: var(--good-soft);
  border: 1px solid #bbf7d0;
  border-radius: var(--radius);
  margin-bottom: 14px;
}
.result-rank { display: flex; align-items: center; gap: 12px; }
.rank-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--good);
  color: #fff;
  font-weight: 800;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.rank-label { font-size: 0.75rem; color: #166534; text-transform: uppercase; letter-spacing: 0.06em; font-weight: 700; }
.result-rank h3 { margin: 0; font-size: 1.2rem; }
.result-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px 14px;
  margin: 0;
}
.result-stats > div { display: flex; justify-content: space-between; gap: 8px; font-size: 0.9rem; }
.result-stats dt { color: var(--muted); }
.result-stats dd { margin: 0; font-weight: 600; }

.result-reason, .result-avoid, .result-alt { margin-bottom: 14px; }
.result-reason h4, .result-avoid h4, .result-alt h4 { margin: 0 0 6px; font-size: 0.95rem; }
.result-reason ul, .result-avoid ul, .result-alt ol { margin: 0; padding-left: 18px; font-size: 0.92rem; color: var(--muted); }
.result-reason li, .result-avoid li, .result-alt li { margin-bottom: 4px; }
.result-reason ul { color: #166534; }
.result-avoid ul { color: #991b1b; }
.result-actions { display: flex; gap: 8px; flex-wrap: wrap; padding-top: 10px; border-top: 1px solid var(--border); }

.plans, .supplies, .edge, .note { padding: 48px 0; }
.plans-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.plan-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.plan-card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.plan-card p { margin: 10px 0 0; color: var(--muted); font-size: 0.93rem; }
.plan-svg { border: 1px solid var(--border); border-radius: 6px; background: #fff; }

.supplies-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 24px;
}
.supply-list, .mistake-list { padding-left: 18px; margin: 0; }
.supply-list li, .mistake-list li { margin-bottom: 6px; color: var(--text); font-size: 0.95rem; }
.supply-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.supply-card h3 { margin: 0 0 10px; font-size: 1rem; color: var(--bad); }
.mistake-list li { color: #991b1b; }

.edge-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.edge-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.edge-card h3 { margin: 0 0 6px; font-size: 1.05rem; }
.edge-card p { margin: 0; color: var(--muted); font-size: 0.93rem; }

.note { padding-bottom: 64px; }
.note p { color: var(--muted); }
.meta { font-size: 0.85rem; color: var(--muted); margin-top: 14px; }

.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 24px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-nav { display: flex; gap: 14px; flex-wrap: wrap; }
.footer-nav a { color: var(--muted); font-size: 0.9rem; }
.footer-nav a:hover { color: var(--accent); text-decoration: none; }
.small { font-size: 0.85rem; }

@media (max-width: 900px) {
  .worksheet-grid { grid-template-columns: 1fr; }
  .result-panel { position: static; }
  .how-grid, .plans-grid { grid-template-columns: 1fr; }
  .supplies-grid, .edge-grid { grid-template-columns: 1fr; }
  .option-list { grid-template-columns: 1fr; }
  .site-nav { gap: 10px; font-size: 0.92rem; }
  .hero { padding: 48px 0 32px; }
}

@media print {
  .site-header, .site-footer, .hero, .how, .plans, .site-nav, .form-actions, .hero-cta, .hero-note { display: none; }
  body { background: #fff; color: #000; }
  .worksheet { background: #fff; border: 0; padding: 0; }
  .worksheet-grid { grid-template-columns: 1fr; }
  .option-list { grid-template-columns: repeat(3, 1fr); }
}



/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}