:root{--navy:#0b1f52;--blue:#2f458f;--orange:#ed4526;--ink:#101828;--muted:#667085;--bg:#f7f9fc;--line:#e3e8ef;--white:#fff}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--ink);line-height:1.6;background:#fff}a{text-decoration:none;color:inherit}header{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 max(5vw,22px);border-bottom:1px solid var(--line);position:sticky;top:0;background:#fffF;z-index:20}.brand{display:flex;align-items:center;gap:10px}.brand img{width:54px;height:54px;object-fit:contain}.brand span{display:flex;flex-direction:column}.brand strong{color:var(--navy)}.brand small{font-size:11px;color:var(--orange)}nav{display:flex;gap:22px;align-items:center;font-size:14px;font-weight:700}.toggle{display:none;background:none;border:0;font-size:24px}.btn,button{background:var(--orange);color:#fff;border:0;border-radius:10px;padding:12px 18px;font-weight:800;cursor:pointer}.btn.small{padding:8px 13px}.hero{min-height:570px;display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;padding:80px max(7vw,26px);background:linear-gradient(135deg,#fff,#f4f7ff)}.hero h1,.page h1,.course-hero h1{font-size:clamp(42px,6vw,72px);line-height:1.05;color:var(--navy);margin:12px 0 20px}.hero h1 em{font-style:normal;color:var(--orange)}.hero p,.page p,.course-hero p{font-size:18px;color:var(--muted);max-width:700px}.eyebrow{text-transform:uppercase;letter-spacing:.16em;color:var(--orange);font-weight:850;font-size:11px}.search{display:flex;max-width:680px;margin-top:28px;background:#fff;border:1px solid var(--line);padding:7px;border-radius:14px;box-shadow:0 12px 35px #0b1f5212}.search input{flex:1;border:0;outline:0;padding:10px 12px;font:inherit}.orb{width:min(420px,80vw);height:min(420px,80vw);border-radius:50%;background:radial-gradient(circle at 35% 30%,#405bb8,var(--navy) 60%);display:grid;place-items:center;position:relative;box-shadow:0 30px 80px #0b1f5230}.orb span{position:absolute;color:#fff;font-size:58px;font-weight:900}.orb span:nth-child(1){left:22%;top:20%;color:#ffad93}.orb span:nth-child(2){right:14%;top:42%;font-size:45px}.orb span:nth-child(3){left:40%;bottom:15%;color:#ffad93}.section{padding:80px max(7vw,26px)}.head{max-width:750px;margin-bottom:34px}.head h2{font-size:clamp(30px,4vw,50px);color:var(--navy)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.course{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;box-shadow:0 10px 35px #0b1f520d}.course-cover{height:170px;background:linear-gradient(135deg,var(--navy),var(--blue));display:grid;place-items:center}.course-cover span{width:80px;height:80px;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--orange);font-size:40px;font-weight:900}.course-body{padding:22px}.course-body small{color:var(--muted)}.course-body h3{color:var(--navy);font-size:22px}.row{display:flex;justify-content:space-between;align-items:center;gap:16px}.row.left{justify-content:flex-start}.price{color:var(--orange)}.price.big{font-size:24px}.band{margin:30px max(5vw,20px);padding:48px;border-radius:24px;background:var(--navy);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:30px}.band h2{color:#fff;margin:0}.page{padding:70px max(7vw,26px);background:#f7f9ff}.auth{padding:70px 20px;display:grid;place-items:center;background:#f6f8fc;min-height:70vh}.auth-card{width:min(520px,100%);background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:0 18px 55px #0b1f5212}.auth-card h1{color:var(--navy)}label{display:grid;gap:6px;margin:14px 0;font-weight:700;color:var(--navy)}input,select,textarea{width:100%;border:1px solid #ccd4e0;border-radius:9px;padding:11px 12px;font:inherit}.notice{padding:11px 13px;border-radius:9px;background:#eaf8ef;margin:12px 0}.notice.error{background:#fff0ee}.course-hero{padding:70px max(7vw,26px);display:grid;grid-template-columns:1.3fr .7fr;gap:40px;background:linear-gradient(135deg,#f7f9ff,#fff5f1)}.course-summary,.panel,.enrolled{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 10px 32px #0b1f520d}.course-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:40px}.lesson-row{padding:11px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:15px}.lesson-row small{color:var(--muted)}.dashboard-grid{display:grid;gap:14px}.enrolled{display:flex;align-items:center;justify-content:space-between;gap:20px}.enrolled h3{color:var(--navy);margin:4px 0}.status{display:inline-block;background:#eef3ff;color:var(--blue);padding:4px 9px;border-radius:999px;font-size:11px;font-weight:800}.learn-layout{display:grid;grid-template-columns:300px 1fr;min-height:75vh}.lesson-nav{background:#0b1f52;color:#dce5ff;padding:28px 18px}.lesson-nav h3{color:#fff}.lesson-nav a{display:block;padding:9px 10px;border-radius:8px;margin:4px 0}.lesson-nav a.active{background:#203a78;color:#fff}.lesson-content{padding:55px max(6vw,30px)}.lesson-content h1{font-size:42px;color:var(--navy)}.lesson-text{font-size:17px;max-width:850px;margin:25px 0 35px}.bank{background:#f5f7fb;padding:16px;border-radius:10px;margin:16px 0}.empty{border:1px dashed #cbd5e1;padding:25px;border-radius:14px;color:var(--muted)}footer{background:#07163b;color:#dce5ff;padding:50px max(7vw,26px);display:grid;grid-template-columns:1fr 1fr;gap:30px}footer a{display:block;margin:5px 0}footer small{grid-column:1/-1;border-top:1px solid #20335f;padding-top:20px}@media(max-width:950px){.hero,.course-hero,.course-layout{grid-template-columns:1fr}.grid{grid-template-columns:repeat(2,1fr)}nav{display:none;position:absolute;top:78px;left:0;right:0;background:#fff;padding:20px;flex-direction:column;border-bottom:1px solid var(--line)}nav.open{display:flex}.toggle{display:block}.learn-layout{grid-template-columns:1fr}.lesson-nav{position:relative}.band{flex-direction:column;align-items:flex-start}}@media(max-width:620px){.grid{grid-template-columns:1fr}.search{flex-direction:column}.brand span{display:none}.hero{padding-top:50px}.hero h1{font-size:46px}.orb{margin:auto}.enrolled{align-items:flex-start;flex-direction:column}footer{grid-template-columns:1fr}.band{padding:30px}}