:root{--bg:#f6f8fb;--card:#fff;--ink:#172033;--muted:#687086;--pri:#3157d5;--pri2:#193a9b;--ok:#16825d;--warn:#c17a11;--bad:#b52b45;--line:#e4e8f0;--nav:#111a2d}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,system-ui,-apple-system,Segoe UI,Arial,sans-serif;line-height:1.55}.wrap{max-width:1180px;margin:auto;padding:0 20px}.topbar{background:var(--nav);color:white;position:sticky;top:0;z-index:10}.nav{min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-weight:800;color:white;text-decoration:none}.nav nav{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.nav nav a{color:#dce4ff;text-decoration:none;font-size:14px}.main{padding-top:28px;padding-bottom:60px;min-height:75vh}footer{border-top:1px solid var(--line);padding:22px 0;color:var(--muted);background:white}.hero{display:grid;grid-template-columns:1.3fr .7fr;gap:30px;align-items:center;padding:50px 0}.hero h1{font-size:54px;line-height:1.04;margin:.2em 0}.eyebrow{color:var(--pri);font-weight:800;letter-spacing:.08em;text-transform:uppercase}.lead{font-size:19px;color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--pri);color:white!important;border:0;border-radius:10px;padding:12px 18px;text-decoration:none;font-weight:700;cursor:pointer}.btn:hover{background:var(--pri2)}.btn.secondary{background:white;color:var(--pri)!important;border:1px solid var(--line)}.btn.danger{background:var(--bad)}.btn.sm{padding:8px 12px;font-size:13px}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 6px 22px rgba(20,38,80,.04)}.grid{display:grid;gap:18px}.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}.stat strong{font-size:30px;display:block}.muted{color:var(--muted)}.badge{display:inline-block;border-radius:999px;background:#e9eefc;color:var(--pri2);padding:4px 9px;font-size:12px;font-weight:800}.badge.ok{background:#e1f7ef;color:var(--ok)}.badge.warn{background:#fff1dc;color:var(--warn)}.badge.bad{background:#fde5ea;color:var(--bad)}h1,h2,h3{line-height:1.2}h1{font-size:36px}h2{margin-top:30px}.progress{height:12px;background:#e8ecf4;border-radius:999px;overflow:hidden}.progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--pri),#6b87e8)}.module{display:flex;gap:16px;align-items:flex-start}.num{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:#edf1ff;color:var(--pri);font-weight:900;flex:0 0 auto}.form{max-width:720px}.form label{display:block;font-weight:700;margin:13px 0 6px}.input,select,textarea{width:100%;border:1px solid #ccd3df;background:white;border-radius:9px;padding:11px 12px;font:inherit}textarea{min-height:120px}.alert{padding:12px 14px;border-radius:10px;margin-bottom:15px}.alert.success{background:#ddf5eb;color:#126847}.alert.error{background:#fde5ea;color:#8e2037}.alert.info{background:#eaf0ff;color:#2547a6}table{width:100%;border-collapse:collapse;background:white;border-radius:12px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:#f1f4f9;font-size:13px}.lesson-content{font-size:17px}.lesson-content pre,.code{background:#111827;color:#dce5ff;padding:14px;border-radius:10px;overflow:auto}.lesson-content blockquote{border-left:4px solid var(--pri);padding-left:14px;color:var(--muted)}.sidebar-layout{display:grid;grid-template-columns:280px 1fr;gap:20px}.side a{display:block;padding:10px;border-radius:8px;text-decoration:none;color:var(--ink)}.side a:hover{background:#eef2fb}.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.price{font-size:38px;font-weight:900}.center{text-align:center}.empty{padding:30px;text-align:center;color:var(--muted)}.quiz-option{display:block;padding:10px;border:1px solid var(--line);border-radius:9px;margin:8px 0}.kpi{font-size:13px;color:var(--muted);text-transform:uppercase;font-weight:800;letter-spacing:.05em}.section-head{display:flex;justify-content:space-between;align-items:center;gap:16px}.timeline{border-left:3px solid #d8dfef;padding-left:18px}.timeline .item{margin-bottom:18px}.locked{opacity:.62}.pill{padding:3px 8px;border-radius:999px;background:#eef2f7;font-size:12px}.hero-card{background:linear-gradient(145deg,#18264a,#294fae);color:white}.hero-card .muted{color:#cbd6f3}@media(max-width:850px){.hero,.sidebar-layout{grid-template-columns:1fr}.hero h1{font-size:40px}.g2,.g3,.g4,.pricing{grid-template-columns:1fr}.nav{align-items:flex-start;padding-top:14px;padding-bottom:14px}.nav nav{justify-content:flex-end}.wrap{padding-left:14px;padding-right:14px}}