:root{
  color-scheme:light;
  --ink:#17211b;--muted:#5d6a63;--line:#d9e2dd;--bg:#f6f8f6;--panel:#ffffff;
  --soft:#eef4f1;--accent:#17614f;--accent-strong:#0f463a;--accent-2:#b85732;
  --danger:#a83232;--warn:#9a6a13;--ok:#2f6f45;--info:#2f5f86;
  --shadow:0 10px 28px rgba(23,33,27,.08);--shadow-lift:0 18px 48px rgba(23,33,27,.12);
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,"Source Sans 3",Arial,Helvetica,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
a{color:inherit}
.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px clamp(18px,4vw,56px);border-bottom:1px solid var(--line);background:rgba(255,255,255,.96);position:sticky;top:0;z-index:10;backdrop-filter:blur(12px)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;min-width:220px}
.brand-mark{display:grid;place-items:center;width:42px;height:42px;background:var(--accent-strong);color:white;font-weight:800;border-radius:8px;letter-spacing:0}
.brand small{display:block;color:var(--muted);font-size:12px;line-height:1.2}
.nav,.site-footer nav{display:flex;gap:16px;flex-wrap:wrap}
.nav a,.site-footer a{text-decoration:none;color:var(--muted);font-size:14px;font-weight:700}
.nav a:hover,.site-footer a:hover{color:var(--accent)}
main{min-height:70vh}
.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:42px;align-items:center;padding:64px clamp(18px,5vw,72px) 42px;background:linear-gradient(180deg,#fff 0%,#f8faf8 60%,var(--soft) 100%);border-bottom:1px solid var(--line)}
.eyebrow{text-transform:uppercase;letter-spacing:.08em;color:var(--accent);font-weight:800;font-size:13px;margin:0 0 10px}
h1{font-size:clamp(36px,5vw,64px);line-height:1.02;margin:0 0 18px;letter-spacing:0}
h2{font-size:clamp(24px,3vw,34px);line-height:1.12;margin:0 0 16px;letter-spacing:0}
h3{margin:0 0 8px}
.lede{font-size:20px;color:var(--muted);max-width:760px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 16px;border-radius:8px;background:var(--accent);color:#fff;text-decoration:none;font-weight:800}
.button:hover{background:var(--accent-strong)}
.button.secondary{background:#26352e}
.diagnostic-visual{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px;box-shadow:var(--shadow-lift)}
.flow-node{padding:13px 15px;border:1px solid var(--line);border-radius:8px;background:#fff;font-weight:800}
.flow-node.strong{background:var(--accent-strong);color:#fff}
.flow-node.urgent{border-color:#ecd0bf;background:#fff7f2;color:#7a351f}
.flow-node.muted{background:#f3f6f4;color:var(--muted)}
.flow-line{width:2px;height:22px;background:var(--line);margin:0 auto}
.search-panel{margin:-22px clamp(18px,5vw,72px) 26px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);position:relative;z-index:2}
.search-panel label{display:block;font-weight:800;margin-bottom:8px}
.search-panel input{width:100%;min-height:50px;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:16px;background:#fbfdfc}
.scope-links,.filter-chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.scope-links a,.chip{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:999px;padding:8px 12px;font-weight:800;text-decoration:none;font-size:14px;cursor:pointer}
.scope-links a:hover,.chip.active{background:var(--accent);border-color:var(--accent);color:#fff}
.section{padding:32px clamp(18px,5vw,72px)}
.section>h2{max-width:1180px;margin-left:auto;margin-right:auto}
.section-urgent{background:#fff9f6;border-top:1px solid #f0d5c9;border-bottom:1px solid #f0d5c9}
.education-section{padding-bottom:52px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;max-width:1180px;margin:0 auto}
.card{background:#fff;border:1px solid var(--line);border-radius:8px;min-height:218px}
.card a{display:flex;flex-direction:column;height:100%;padding:20px;text-decoration:none}
.card:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.card-kicker{display:block;color:var(--accent);font-size:13px;font-weight:800;margin-bottom:10px;text-transform:uppercase;letter-spacing:.06em}
.card h2{font-size:21px;margin-bottom:10px}
.card p{color:var(--muted);margin:0 0 16px}
.card-badge{margin-top:auto;align-self:flex-start;border:1px solid var(--line);border-radius:999px;padding:5px 9px;color:var(--muted);font-size:12px;font-weight:800}
.principle-band{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;max-width:1180px;margin:0 auto}
.principle-band div{background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px}
.principle-band span{display:block;color:var(--accent-2);font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px}
.principle-band strong{font-size:18px}
.article{max-width:980px;margin:0 auto;padding:46px 18px}
.article h1{font-size:clamp(34px,4.4vw,54px)}
.safety-panel{border-left:7px solid var(--accent);background:#fff;padding:16px 18px;margin:24px 0;border-radius:8px;box-shadow:var(--shadow)}
.safety-panel span{font-weight:900;text-transform:uppercase;letter-spacing:.06em;font-size:13px}
.safety-panel p{margin:6px 0 0}
.safety-panel.danger{border-color:var(--danger);background:#fff7f7}
.safety-panel.warn{border-color:var(--warn);background:#fffaf0}
.safety-panel.ok{border-color:var(--ok);background:#f6fbf7}
.quick-answer{background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow)}
.mechanic-handoff{background:#fff;border:1px solid var(--line);border-left:7px solid var(--info);border-radius:8px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.check-list{padding-left:20px}
.check-list li{margin:8px 0}
.related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:8px;margin-top:28px;box-shadow:var(--shadow)}
.related-heading{grid-column:1/-1;border-bottom:1px solid var(--line);padding-bottom:14px}
.related-heading span{display:block;color:var(--accent-2);font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
.related-heading strong{display:block;font-size:18px;margin-top:4px}
.link-list{padding-left:18px;color:var(--muted)}
.link-list a:hover{color:var(--accent)}
.trust-bar{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:28px;padding:14px 16px;background:#f8faf9;border:1px solid var(--line);border-radius:8px;color:var(--muted);font-size:14px}
.trust-bar span{font-weight:900;color:var(--ink)}
.trust-bar a{font-weight:800;color:var(--accent);text-decoration:none}
.trust-bar a:hover{text-decoration:underline}
.site-footer{margin-top:42px;padding:30px clamp(18px,4vw,56px);border-top:1px solid var(--line);background:#fff;color:var(--muted);display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.site-footer p{max-width:560px;margin:0}
@media (max-width:860px){
  .site-header{align-items:flex-start;position:static;flex-direction:column}
  .hero{grid-template-columns:1fr;padding-top:34px}
  .diagnostic-visual{display:none}
  .card-grid,.two-col,.related,.principle-band{grid-template-columns:1fr}
  .nav{gap:10px}
  h1{font-size:38px}
  .lede{font-size:18px}
  .search-panel{margin:18px}
}