:root{--bg:#0b1220;--panel:#0f1b37;--panel-2:#0c1830;--line:#294775;--muted:#a9b8d2;--brand:#357abd;--accent:#ffd54f;--shadow:0 12px 30px rgba(0,0,0,.25);--radius:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth}html,body{margin:0;padding:0}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Inter,Arial,sans-serif;background:linear-gradient(180deg,#0a1020,#0c1530);color:#e8eefc;line-height:1.6;overflow-x:hidden}a{color:#cfe3ff}a:hover{text-decoration-thickness:2px}:where(a,button,summary):focus-visible{outline:3px solid var(--accent);outline-offset:3px}section[id],article[id]{scroll-margin-top:18px}.wrap{width:100%;max-width:1120px;min-width:0;margin:0 auto;padding:20px;overflow-x:clip}.wrap>nav{margin-bottom:12px;font-size:14px}.skip-link{position:fixed;left:12px;top:-60px;z-index:1000;padding:10px 14px;border-radius:8px;background:#fff;color:#0b1220;font-weight:800}.skip-link:focus{top:12px}.hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr);gap:18px;padding:24px;border:1px solid #355da8;border-radius:var(--radius);background:radial-gradient(circle at top left,rgba(92,155,255,.16),transparent 35%),linear-gradient(145deg,#101f42,#0b1730);box-shadow:var(--shadow)}.hero>*{min-width:0}.hero h1{margin:10px 0;font-size:clamp(29px,4vw,43px);line-height:1.08}.hero-summary{font-size:17px;max-width:70ch;color:#dce8ff}.section-kicker{display:inline-flex;padding:5px 9px;border:1px solid #4a74c5;border-radius:999px;color:#ffd778;background:#0b1d46;font-size:11px;font-weight:900;letter-spacing:.35px;text-transform:uppercase}.actions,.jump-links{display:flex;gap:9px;flex-wrap:wrap}.actions{margin-top:14px}.jump-links{margin-top:14px}.jump-links a{display:inline-flex;align-items:center;min-height:40px;padding:7px 10px;border:1px solid #355da8;border-radius:999px;background:#0b1d46;font-size:13px;text-decoration:none}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 14px;border-radius:10px;border:1px solid #2f4f93;background:#17356e;color:#eff5ff;text-decoration:none;font-weight:800}.btn:hover{text-decoration:none;background:#1d4a98}.btn.alt{background:transparent}.byline,.micro{color:var(--muted);font-size:12px}.hero-side{display:grid;gap:12px}.fact-card,.coupon-card{background:#0b1730;border:1px solid var(--line);border-radius:12px;padding:16px}.fact-card h2,.coupon-card h2{margin:0 0 10px;font-size:18px}.fact-list{list-style:none;padding:0;margin:0;display:grid;gap:8px}.fact-list li{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid #20385f;padding-bottom:7px}.fact-list li:last-child{border:0;padding:0}.fact-list span{text-align:right;color:#d6e2f7}.coupon-card{border-color:#b78a1d;background:linear-gradient(145deg,#2a2411,#0b1730)}.coupon-card .btn{width:100%;background:var(--accent);color:#18213a;border-color:var(--accent)}.coupon-code{font:900 18px ui-monospace,SFMono-Regular,Consolas,monospace;color:#ffe082}.coupon-status{padding:8px 10px;border-radius:8px;background:#142c21;color:#bff2d0}.coupon-expired .coupon-status{background:#3b2025;color:#ffd1d8}.copy-coupon{min-height:44px;padding:8px 10px;border:1px solid #7396d8;border-radius:8px;background:transparent;color:#fff;cursor:pointer}.copy-coupon:disabled{cursor:not-allowed;opacity:.7}.coupon-expired{border-color:#8b5961}.panel{background:var(--panel);border:1px solid #1e2a4d;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);margin-top:18px}.panel h2{margin-top:0;line-height:1.2}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:14px}.metric,.benefit,.coupon-step,.study-grid li{padding:15px;border:1px solid var(--line);border-radius:12px;background:var(--panel-2)}.metric strong{display:block;color:#fff;font-size:22px}.metric span,.benefit span,.coupon-step span,.study-grid span{display:block;margin-top:5px;color:#c7d5ef;font-size:13px}.notice{border-left:4px solid #65a4ff;background:var(--panel-2);padding:15px;color:#dce9ff}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}.table-wrap:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.domain-table{width:100%;min-width:700px;border-collapse:collapse;background:var(--panel-2)}.domain-table th,.domain-table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.domain-table th{background:#13264a}.domain-table tr:last-child td{border-bottom:0}.weight{font-weight:900;color:#ffd778;white-space:nowrap}.benefit-grid,.study-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.study-grid{list-style:none;counter-reset:study;padding:0}.study-grid li{counter-increment:study}.study-grid strong{display:block;color:#fff}.study-grid strong::before{content:counter(study) ". ";color:var(--accent)}.benefit strong,.coupon-step strong{display:block;color:#fff}.coupon-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:14px 0}.question-progress{margin:14px 0;padding:10px 13px;border:1px solid #3d65aa;border-radius:10px;background:#102653;color:#dce9ff;font-weight:800}.sample-question{margin-top:14px;padding:18px;border:1px solid var(--line);border-radius:12px;background:var(--panel-2)}.sample-question h3{margin:8px 0;font-size:18px}.domain-tag{display:inline-flex;padding:4px 8px;border:1px solid #4974c5;border-radius:999px;color:#ffd778;font-size:11px;font-weight:800}.question-options{padding-left:24px}.question-options li{padding:5px 4px}.answer{margin-top:12px;border:1px solid #4269a9;border-radius:10px;background:#0a162d}.answer summary{display:flex;align-items:center;min-height:44px;padding:10px 13px;cursor:pointer;color:#d9e9ff;font-weight:800}.answer-box{padding:0 14px 12px}.answer-box p:last-child{margin-bottom:0}.faq details{border-bottom:1px solid var(--line);padding:12px 0}.faq summary{cursor:pointer;font-weight:800;color:#fff}.faq details p{margin-bottom:2px}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.related-card{display:block;padding:15px;border:1px solid var(--line);border-radius:12px;background:var(--panel-2);text-decoration:none}.related-card strong,.related-card span{display:block}.related-card span{margin-top:5px;color:#bfcdea;font-size:13px}
@media(max-width:860px){.hero{grid-template-columns:1fr}.metrics{grid-template-columns:repeat(2,1fr)}.coupon-steps,.related-grid{grid-template-columns:1fr}}@media(max-width:720px){.benefit-grid,.study-grid{grid-template-columns:1fr}.actions .btn{width:100%}.hero,.panel{padding:18px}.sample-question{padding:15px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}