:root{--ink:#15213b;--muted:#6e7890;--brand:#5b5ce2;--brand2:#8b5cf6;--line:#e7eaf2;--bg:#f6f7fc;--white:#fff;--good:#0f9f75;--danger:#c0394d}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px max(5vw,20px);background:#fff;border-bottom:1px solid var(--line);gap:20px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-weight:800;font-size:1.05rem}.brand small{display:block;color:var(--muted);font-weight:500;font-size:.72rem}.brand-mark{display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand2));color:white;width:46px;height:46px;border-radius:15px;font-weight:900}.topbar nav{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.topbar nav a{color:var(--ink);font-size:.92rem}.topbar nav .nav-cta{background:var(--brand);color:#fff;padding:9px 15px;border-radius:11px}.container{max-width:1160px;margin:34px auto;padding:0 22px;min-height:55vh}.narrow{max-width:680px;margin:8vh auto}.hero{padding:58px 50px;border-radius:28px;background:radial-gradient(circle at 90% 15%,#9d9efb 0,transparent 32%),linear-gradient(130deg,#171e4a,#4d4ed6 65%,#7662e8);color:white;display:grid;grid-template-columns:1.4fr .6fr;gap:30px;align-items:center;overflow:hidden}.hero h1{font-size:clamp(2.3rem,5vw,4.2rem);line-height:1.07;letter-spacing:-.04em;margin:12px 0 20px}.hero p{color:#e6e8ff;max-width:650px;font-size:1.1rem}.hero-art{font-size:7rem;text-align:center;filter:drop-shadow(0 20px 25px #14194a66)}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-weight:800;font-size:.75rem;color:#7c7df0}.hero .eyebrow{color:#c5c6ff}.button{display:inline-flex;justify-content:center;align-items:center;border:0;border-radius:12px;padding:12px 18px;background:var(--brand);color:#fff;font-weight:750;cursor:pointer;font:inherit}.button:hover{background:#4647c5;text-decoration:none}.button.light{background:#fff;color:#3738a7}.button.secondary{background:#eef0ff;color:#3839a8}.button.danger{background:#bd334b}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:36px 0 18px}.section-head h2{margin:0;font-size:1.7rem;letter-spacing:-.03em}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.card,.panel,.stat{background:white;border:1px solid var(--line);border-radius:19px;box-shadow:0 8px 30px #27305b08}.card{overflow:hidden}.cover{height:150px;display:grid;place-items:center;background:linear-gradient(135deg,#dfe1ff,#f1e8ff);font-size:3.5rem}.card-body{padding:21px}.card h3{margin:6px 0 8px;font-size:1.15rem}.badge{display:inline-block;background:#eff0ff;color:#5152c7;border-radius:100px;padding:4px 10px;font-size:.76rem;font-weight:750}.panel{padding:27px}.panel h1,.panel h2{margin-top:0}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:22px 0}.stat{padding:20px}.stat strong{display:block;font-size:1.9rem;line-height:1.3}.stat span{font-size:.86rem;color:var(--muted)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-grid .full{grid-column:1/-1}label{display:block;font-weight:700;font-size:.9rem}input,textarea,select{display:block;width:100%;margin-top:7px;border:1px solid #dfe3ef;border-radius:10px;padding:12px 13px;font:inherit;background:white;color:var(--ink)}textarea{min-height:120px;resize:vertical}input:focus,textarea:focus,select:focus{outline:3px solid #dfe0ff;border-color:var(--brand)}.alert{border-radius:12px;padding:13px 16px;margin:16px 0;background:#eef0ff;color:#3839a8}.alert.error{background:#fff0f1;color:#a5263a}.alert.success{background:#e8faf3;color:#087754}.table-wrap{overflow:auto;background:white;border:1px solid var(--line);border-radius:15px}table{width:100%;border-collapse:collapse;min-width:650px}th,td{text-align:left;padding:13px 15px;border-bottom:1px solid var(--line)}th{background:#f8f9fd;color:#6d7690;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em}tr:last-child td{border-bottom:0}.lesson-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(250px,1fr);gap:22px}.media-box{background:#10172a;border-radius:16px;overflow:hidden;margin:16px 0}.media-box video,.media-box audio{width:100%;display:block}.media-box video{max-height:600px}.embed{width:100%;aspect-ratio:16/9;border:0}.lesson-list{list-style:none;padding:0;margin:0}.lesson-list li{padding:12px 0;border-bottom:1px solid var(--line)}.footer{display:flex;justify-content:space-between;gap:24px;padding:30px max(5vw,20px);background:#151d3c;color:#fff;margin-top:55px;flex-wrap:wrap}.footer p{margin:4px 0;color:#c4cae0}.empty{padding:32px;text-align:center;background:#fff;border:1px dashed #cbd0e4;border-radius:16px}.inline-form{display:inline}.pill{border-radius:100px;background:#edf9f4;color:#087754;padding:4px 9px;font-size:.78rem}.danger-text{color:var(--danger)}hr{grid-column:1/-1;border:0;border-top:1px solid var(--line);width:100%}.prose{line-height:1.85}.prose img{max-width:100%}@media(max-width:850px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{grid-template-columns:1fr;padding:38px 28px}.hero-art{display:none}.stats{grid-template-columns:repeat(2,1fr)}.lesson-layout{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column}.topbar nav{gap:12px}}@media(max-width:560px){.grid{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.container{padding:0 14px;margin:22px auto}.hero{padding:30px 22px}.stats{gap:10px}.stat{padding:14px}.section-head{align-items:flex-start;flex-direction:column}.footer{flex-direction:column}}

/* V3 learning tools */
.question{border:1px solid #e6e8f2;border-radius:14px;padding:18px;margin:18px 0}.question legend{padding:0 8px;line-height:1.6}.choice{display:flex;gap:10px;align-items:flex-start;padding:9px 0;font-weight:400}.choice input{margin-top:5px}.stack{display:grid;gap:18px}.list-row{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:14px 0;border-bottom:1px solid #eceef5}.badge{display:inline-block;padding:6px 10px;border-radius:20px;background:#eef0ff;color:#4b4bc5;font-size:12px;font-weight:700}.danger{background:#b42318!important}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%}th,td{text-align:left;padding:12px;border-bottom:1px solid #eceef5}@media print{.topbar,.footer,.button{display:none!important}}