:root{color-scheme:dark;--bg:#0a111b;--panel:#111d2a;--border:#2a4050;--text:#eaf3f0;--muted:#a5b6ba;--mint:#a9f1bd;--orange:#ffc58e;--red:#ff8989}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(ellipse at 68% 0,#143329 0,transparent 34%),var(--bg);color:var(--text);font:16px/1.55 system-ui,-apple-system,Segoe UI,sans-serif}a{color:var(--mint)}button,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:wait}.topbar{display:flex;align-items:center;gap:30px;border-bottom:1px solid var(--border);padding:16px max(24px,calc((100vw - 1260px)/2));background:#0c1720}.topbar .brand{font-size:1.2rem;font-weight:800;text-decoration:none;color:var(--text);white-space:nowrap}.brand span{color:var(--mint);font-size:1.6rem}.brand b{color:var(--mint)}.topbar nav{display:flex;gap:24px}.topbar nav a{color:var(--muted);text-decoration:none}.topbar nav a:hover{color:var(--text)}.edition{margin-left:auto;color:var(--mint);font:12px ui-monospace,monospace;letter-spacing:.15em;white-space:nowrap}main{max-width:1260px;margin:auto;padding:0 24px}.hero{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(300px,.75fr);gap:70px;align-items:center;min-height:590px;padding:82px 0}.eyebrow,.section-heading>span,.incident>span,.report-card>span,.test-top{color:var(--mint);font:700 12px ui-monospace,monospace;letter-spacing:.16em}.pulse{display:inline-block;width:8px;height:8px;border-radius:50%;background:#fa806e;box-shadow:0 0 12px #fa806e;margin-left:8px}h1{font-size:clamp(3rem,6vw,5.5rem);line-height:1.03;letter-spacing:-.055em;margin:18px 0 24px}h1 em{color:var(--mint);font-style:normal}.lead{font-size:1.15rem;max-width:660px;color:var(--muted)}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}.primary,.secondary{display:inline-block;border-radius:9px;border:1px solid var(--mint);padding:11px 18px;text-decoration:none;font-weight:700;color:#0b2118;background:var(--mint)}.primary:hover{background:#d5ffe0}.secondary{background:transparent;color:var(--text);border-color:var(--border)}.secondary:hover{border-color:var(--mint)}.incident,.panel,.editor-panel,.test-panel{background:var(--panel);border:1px solid var(--border);border-radius:16px}.incident{padding:28px;transform:rotate(2deg);box-shadow:16px 18px 0 #091118}.incident strong{float:right;color:var(--orange);border:1px solid #aa6c3d;padding:3px 8px;border-radius:5px;font:700 12px ui-monospace,monospace}.incident p{font-size:1.4rem;line-height:1.4;margin:42px 0}.incident small{color:var(--muted)}.phasebar{display:flex;gap:0;border:1px solid var(--border);border-radius:12px;overflow:hidden}.phasebar a{flex:1;padding:18px;text-decoration:none;color:var(--text);border-right:1px solid var(--border);font-weight:700}.phasebar a:last-child{border:0}.phasebar span{color:var(--mint);font:700 12px ui-monospace,monospace;margin-right:12px}.section{padding:95px 0 0;scroll-margin-top:24px}.section-heading h2{font-size:clamp(2rem,3.6vw,3.2rem);line-height:1.1;margin:10px 0 14px;letter-spacing:-.04em}.section-heading p{color:var(--muted);max-width:680px}.diagnose-grid,.report-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:32px}.panel{padding:28px}.panel h3{margin:0 0 14px}.panel p,.panel li{color:var(--muted)}.rule-panel li{padding:8px 0}.ticket-list{display:grid;gap:10px;margin-top:24px}.ticket{border:1px solid var(--border);border-radius:9px;padding:12px 15px;display:flex;justify-content:space-between;gap:10px}.ticket small{color:var(--muted)}.ticket b{color:var(--orange);font:700 12px ui-monospace,monospace}.work-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(300px,.75fr);gap:22px;margin-top:32px}.editor-panel{overflow:hidden}.editor-top,.editor-bottom,.test-top{display:flex;justify-content:space-between;gap:12px;padding:14px 18px;background:#0d1822}.editor-top{font:12px ui-monospace,monospace;color:var(--muted)}.editor-top i{display:inline-block;background:var(--orange);border-radius:50%;width:8px;height:8px;margin-right:8px}.editor-panel textarea{display:block;background:#0b1520;color:#e9f3ec;border:0;resize:vertical;width:100%;min-height:360px;padding:24px;font:15px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace;tab-size:2;outline-offset:-3px}.editor-bottom{align-items:center;flex-wrap:wrap}.editor-bottom small{color:var(--muted)}.editor-bottom button{font-size:13px}.test-panel{padding:0 22px 22px}.test-top{margin:0 -22px 20px;border-radius:16px 16px 0 0}.test-panel>p{color:var(--muted)}.test-results{margin-top:20px;display:grid;gap:8px}.test-result{padding:10px 12px;border:1px solid var(--border);border-radius:8px}.test-result.ok{border-color:#3f8060}.test-result.fail{border-color:#89504e}.test-result strong{display:block}.test-result small{color:var(--muted)}.report-card strong{display:block;font-size:2rem;margin:16px 0}.report-card.complete strong{color:var(--mint)}.classroom{padding-bottom:110px}.class-content{display:grid;gap:20px;margin-top:32px}.class-card{display:flex;justify-content:space-between;gap:24px;align-items:center;flex-wrap:wrap}.class-card p{color:var(--muted);margin:6px 0}.class-card strong{display:block}.class-card button{white-space:nowrap}.class-content select{background:#0e1a24;color:var(--text);border:1px solid var(--border);border-radius:7px;padding:10px;max-width:100%}.class-content label{display:grid;gap:8px}.class-form{display:flex;align-items:end;gap:12px;flex-wrap:wrap}.feedback{color:var(--orange)}.access{max-width:650px;margin:80px auto;padding:35px;background:var(--panel);border:1px solid var(--border);border-radius:16px}.access h1{font-size:2.3rem}.access p{color:var(--muted)}footer{border-top:1px solid var(--border);padding:25px;text-align:center;color:var(--muted);font-size:.9rem}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:850px){.hero,.diagnose-grid,.work-grid,.report-grid{grid-template-columns:1fr}.hero{gap:40px;min-height:0;padding:65px 0}.incident{transform:none}.edition{display:none}.phasebar a{padding:13px;font-size:.9rem}.section{padding-top:70px}}@media(max-width:520px){.topbar{flex-wrap:wrap;gap:10px;padding:12px 18px}.topbar nav{gap:14px;font-size:.88rem}main{padding:0 16px}.hero{padding:50px 0}.incident{padding:20px}.phasebar span{display:block}.panel{padding:20px}}