:root{
  --ink:#0d1b1e;--muted:#66777a;--line:#dfe8e7;--bg:#f5f8f7;--card:#fff;
  --nav:#062f35;--nav2:#0b454a;--green:#0a9f6f;--green2:#20b987;--lime:#8bc34a;
  --blue:#2f74d0;--orange:#f59f36;--red:#dc5252;--shadow:0 12px 32px rgba(10,52,55,.08);
  --radius:18px;--max:1240px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink)}button,input,select,textarea{font:inherit}button{cursor:pointer}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:9999;background:#fff;padding:10px;border-radius:8px}.topbar{height:72px;position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:24px;padding:0 max(18px,calc((100vw - var(--max))/2));background:linear-gradient(100deg,var(--nav),#05272b);color:#fff;box-shadow:0 2px 14px rgba(0,0,0,.18)}.brand{display:flex;align-items:center;gap:10px;background:none;border:0;color:#fff;padding:0;white-space:nowrap}.brand img{width:42px;height:42px}.brand span{display:flex;flex-direction:column;align-items:flex-start;line-height:1.05}.brand b{font-size:17px}.brand small{font-size:11px;color:#9fd6ca;margin-top:4px}.nav{display:flex;align-items:center;gap:2px;overflow:auto;flex:1;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav button{border:0;background:transparent;color:#cfe3df;padding:10px 9px;border-radius:9px;font-size:13px;white-space:nowrap}.nav button:hover,.nav button.active{background:#ffffff16;color:#fff}.top-actions{display:flex;gap:10px;align-items:center}.status-dot{font-size:11px;color:#b7e6dc;border:1px solid #ffffff2d;border-radius:99px;padding:6px 9px;white-space:nowrap}.status-dot.live{color:#b7ffd8;border-color:#39be7c}.menu-btn{display:none;background:#ffffff12;color:#fff;border:1px solid #ffffff20;border-radius:10px;padding:8px 10px}.page{max-width:var(--max);margin:0 auto;padding:34px 22px 70px}.hero{min-height:500px;border-radius:26px;overflow:hidden;position:relative;padding:58px;display:grid;grid-template-columns:1.25fr .75fr;align-items:center;color:#fff;background:
radial-gradient(circle at 75% 25%,#20b98740 0 12%,transparent 13%),
radial-gradient(circle at 80% 70%,#8bc34a35 0 18%,transparent 19%),
linear-gradient(125deg,#062f35 0%,#0a4b50 45%,#0d665c 100%);box-shadow:var(--shadow)}.hero:after{content:"";position:absolute;inset:auto -10% -44% 28%;height:420px;background:linear-gradient(145deg,transparent 0 38%,#ffffff10 39% 44%,transparent 45% 50%,#ffffff0b 51% 56%,transparent 57%);transform:rotate(-4deg)}.hero-copy{position:relative;z-index:2}.eyebrow{text-transform:uppercase;letter-spacing:.18em;font-size:12px;color:#aee9dc;font-weight:750}.hero h1{font-size:clamp(42px,6vw,74px);line-height:.96;margin:12px 0 18px;max-width:760px}.hero p{font-size:18px;line-height:1.6;max-width:670px;color:#e2f2ef}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.btn{border:0;border-radius:11px;padding:12px 17px;font-weight:700;background:var(--green);color:#fff;box-shadow:0 7px 16px rgba(0,135,94,.18)}.btn:hover{filter:brightness(1.04)}.btn.secondary{background:#fff;color:var(--nav);box-shadow:none}.btn.ghost{background:transparent;color:inherit;border:1px solid currentColor;box-shadow:none}.btn.danger{background:var(--red)}.hero-panel{position:relative;z-index:2;background:#ffffff12;border:1px solid #ffffff24;border-radius:20px;padding:22px;backdrop-filter:blur(8px)}.hero-panel h3{margin-top:0}.mini-stat{display:flex;justify-content:space-between;border-top:1px solid #ffffff20;padding:12px 0}.mini-stat:first-of-type{border-top:0}.mini-stat b{color:#fff}.mini-stat span{color:#baddd5}.quick-grid,.cards,.tool-grid,.module-grid{display:grid;gap:16px}.quick-grid{grid-template-columns:repeat(4,1fr);margin-top:18px}.quick-card,.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 5px 18px rgba(0,0,0,.035)}.quick-card{cursor:pointer;text-align:left}.quick-card:hover,.card.clickable:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#bcd8d2}.quick-card .icon,.card-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:#e8f6f1;color:var(--green);font-weight:900;margin-bottom:14px}.quick-card h3,.card h3{margin:0 0 7px;font-size:17px}.quick-card p,.card p{margin:0;color:var(--muted);line-height:1.5}.section{margin-top:40px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:16px}.section-head h2,.page-title h1{margin:0}.section-head p,.page-title p{color:var(--muted);margin:7px 0 0}.page-title{margin-bottom:24px}.cards{grid-template-columns:repeat(3,1fr)}.module-grid{grid-template-columns:repeat(4,1fr)}.lesson-card{position:relative}.lesson-card .progress{height:7px;background:#edf2f1;border-radius:99px;overflow:hidden;margin-top:16px}.lesson-card .progress i{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--lime));border-radius:inherit}.pill{display:inline-flex;border-radius:99px;padding:5px 9px;background:#e9f6f2;color:#08744f;font-size:11px;font-weight:800}.pill.orange{background:#fff2df;color:#a35f0a}.pill.blue{background:#eaf2ff;color:#245ca4}.pill.red{background:#ffeded;color:#a53838}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.metric{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px}.metric small{color:var(--muted);display:block;margin-bottom:7px}.metric b{font-size:24px}.metric .good{color:var(--green)}.metric .bad{color:var(--red)}.split{display:grid;grid-template-columns:minmax(280px,.7fr) minmax(360px,1.3fr);gap:18px}.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 5px 18px rgba(0,0,0,.03)}.panel h2,.panel h3{margin-top:0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:12px;color:#526365;font-weight:750}.field input,.field select,.field textarea{width:100%;border:1px solid #cfdcda;background:#fff;border-radius:9px;padding:11px 12px;color:var(--ink)}.field textarea{min-height:95px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{outline:3px solid #0a9f6f18;border-color:var(--green)}.result-box{background:#eef8f4;border:1px solid #cce9dd;border-radius:14px;padding:18px}.result-box .big{font-size:34px;color:#08764f;font-weight:850}.notice{border-left:4px solid var(--orange);background:#fff8ec;border-radius:9px;padding:12px 14px;color:#644b27;font-size:13px;line-height:1.55}.notice.green{border-color:var(--green);background:#eff9f5;color:#245546}.notice.red{border-color:var(--red);background:#fff0f0;color:#6d3131}.chart-wrap{position:relative;min-height:280px}.chart{width:100%;height:280px;border-radius:12px;background:linear-gradient(#fff,#fbfdfd)}.tabs{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:16px}.tabs button{border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 12px}.tabs button.active{background:#e8f6f1;color:#08764f;border-color:#b8ded1;font-weight:800}.asset-row,.source-row,.achievement{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px solid #edf1f0}.asset-row:last-child,.source-row:last-child,.achievement:last-child{border-bottom:0}.asset-main{display:flex;align-items:center;gap:10px}.asset-symbol{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:#eef3f3;font-size:12px;font-weight:900}.positive{color:var(--green)}.negative{color:var(--red)}.table-wrap{overflow:auto}.table{border-collapse:collapse;width:100%;font-size:13px}.table th,.table td{text-align:left;border-bottom:1px solid #e8eeee;padding:10px}.table th{color:#5c6d70;font-size:11px;text-transform:uppercase;letter-spacing:.04em}.tutor-shell{display:grid;grid-template-rows:auto 1fr auto;min-height:560px}.chat{padding:6px 0;overflow:auto}.bubble{max-width:82%;padding:13px 15px;border-radius:16px;line-height:1.55;margin:10px 0;white-space:pre-wrap}.bubble.user{margin-left:auto;background:#dcedff}.bubble.bot{background:#f0f5f4;border:1px solid #dce9e6}.chat-input{display:flex;gap:9px;border-top:1px solid var(--line);padding-top:14px}.chat-input input{flex:1;border:1px solid #cfdcda;border-radius:12px;padding:12px}.source-chip{display:inline-block;margin:4px 5px 0 0;background:#f0f5f4;border:1px solid #dde9e6;border-radius:99px;padding:5px 8px;font-size:11px}.score-ring{width:120px;height:120px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--green) var(--p,37%),#e7eded 0);position:relative}.score-ring:after{content:"";position:absolute;inset:14px;background:#fff;border-radius:50%}.score-ring b{position:relative;z-index:2;font-size:26px}.footer{border-top:1px solid var(--line);padding:22px max(20px,calc((100vw - var(--max))/2));display:flex;justify-content:space-between;gap:20px;color:#6a797b;font-size:12px;background:#fff}.empty{padding:38px;text-align:center;color:var(--muted)}.kicker{font-size:12px;color:var(--green);font-weight:800;text-transform:uppercase;letter-spacing:.08em}.citation{font-size:11px;color:#6b7c7e;margin-top:10px}.citation a{color:#217367}.stack{display:flex;flex-direction:column;gap:12px}.flex{display:flex;align-items:center;gap:12px}.between{justify-content:space-between}.mt{margin-top:16px}.mb{margin-bottom:16px}.small{font-size:12px;color:var(--muted)}.code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#eef2f2;padding:2px 5px;border-radius:5px}.hero-badge{display:inline-flex;gap:8px;align-items:center;background:#ffffff12;border:1px solid #ffffff21;border-radius:99px;padding:7px 12px}.hero-badge:before{content:"";width:8px;height:8px;border-radius:50%;background:#7be0b5;box-shadow:0 0 0 4px #7be0b522}.radar{display:grid;grid-template-columns:repeat(5,1fr);gap:7px}.radar div{background:#f2f6f5;border-radius:10px;padding:10px;text-align:center}.radar b{display:block;font-size:18px}.radar small{font-size:10px;color:var(--muted)}
@media(max-width:1050px){.nav{display:none}.nav.open{display:flex;position:absolute;left:0;right:0;top:72px;padding:12px 16px;background:var(--nav);flex-wrap:wrap;box-shadow:0 9px 20px #0003}.menu-btn{display:block}.quick-grid,.module-grid{grid-template-columns:repeat(2,1fr)}.cards{grid-template-columns:repeat(2,1fr)}.hero{grid-template-columns:1fr}.hero-panel{max-width:520px}.split{grid-template-columns:1fr}}
@media(max-width:650px){.page{padding:24px 14px 56px}.hero{padding:32px 22px;border-radius:18px}.hero h1{font-size:44px}.quick-grid,.module-grid,.cards,.metrics{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.footer{flex-direction:column}.topbar{padding:0 14px}.status-dot{display:none}.brand b{font-size:15px}.bubble{max-width:94%}}
.quiz-answer{margin:8px 8px 0 0}.quiz-result{min-height:1.4em;line-height:1.5;color:#245546}