:root{--navy:#10202b;--green:#087f5b;--mint:#e9f7f2;--gold:#c9923e;--bg:#f6f8f7;--text:#14202a;--muted:#68747c;--line:#e0e7e4;--white:#fff;--danger:#b84a4a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Tahoma,Arial,sans-serif}button{font:inherit;cursor:pointer}.shell{min-height:100vh}.top{height:76px;background:var(--navy);color:white;display:flex;align-items:center;justify-content:space-between;padding:0 6%;position:sticky;top:0;z-index:10}.brand{display:flex;gap:12px;align-items:center}.brand img{width:48px;height:48px;object-fit:contain}.brand b{display:block;font-size:19px}.brand span{font-size:12px;color:#aebbc2}.user{display:flex;align-items:center;gap:10px}.avatar{width:38px;height:38px;border-radius:50%;background:var(--green);display:grid;place-items:center;font-weight:bold}.wrap{max-width:1180px;margin:auto;padding:34px 20px 70px}.hero{background:linear-gradient(135deg,#10202b,#183b40);color:#fff;border-radius:26px;padding:36px;display:grid;grid-template-columns:1.5fr .8fr;gap:24px;overflow:hidden}.eyebrow{color:#a9e1cf;font-size:12px;letter-spacing:1.5px}.hero h1{font-size:36px;margin:12px 0}.hero p{color:#d1dcdf;line-height:1.9}.hero-side{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:24px}.mini-label{font-size:12px;color:#7e8c94}.stats{display:flex;gap:12px;margin-top:25px;flex-wrap:wrap}.stat{background:rgba(255,255,255,.08);border-radius:15px;padding:14px 20px;min-width:130px}.stat strong{display:block;font-size:23px}.stat span{font-size:12px;color:#bdc9cc}.btn{border:0;border-radius:12px;background:#6ac7d8;color:#06242d;padding:12px 18px;font-weight:800}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin:38px 0 20px}.section-head h2{margin:0;font-size:27px}.section-head p{margin:7px 0;color:var(--muted)}.filters{display:flex;gap:8px;flex-wrap:wrap}.filter{background:#fff;border:1px solid var(--line);padding:9px 13px;border-radius:999px}.filter.active{background:var(--navy);color:#fff}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card,.detail-box,.dashboard-card,.player{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}.card h3{font-size:21px;margin:15px 0 9px}.card p{color:var(--muted);line-height:1.8;min-height:74px}.tag{display:inline-block;background:#fff4df;color:#825a20;padding:6px 10px;border-radius:999px;font-size:12px}.meta{display:flex;gap:10px;flex-wrap:wrap;color:#69757b;font-size:12px}.card-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:20px}.progress{height:8px;background:#e7eeeb;border-radius:99px;overflow:hidden}.progress i{display:block;height:100%;background:var(--green);border-radius:99px}.progress-label{font-size:11px;color:var(--muted);display:block;margin-bottom:5px}.empty,.loading{text-align:center;padding:45px;background:#fff;border:1px solid var(--line);border-radius:20px}.detail{margin-top:30px}.back{border:0;background:transparent;color:var(--green);font-weight:700;margin-bottom:15px}.detail-head{display:grid;grid-template-columns:1.4fr .7fr;gap:25px}.detail h1{font-size:34px;margin:14px 0}.lead{color:var(--muted);line-height:1.9}.learn-card{background:var(--mint);border-radius:18px;padding:20px}.learn-card li{margin:10px 0}.modules{margin-top:25px}.modules-title{display:flex;justify-content:space-between;align-items:center}.lesson-row{width:100%;display:flex;align-items:center;gap:15px;text-align:right;border:1px solid var(--line);background:#fff;padding:17px;border-radius:15px;margin:9px 0}.lesson-num{font-weight:800;color:var(--green)}.lesson-info{flex:1}.lesson-info b,.lesson-info small{display:block}.lesson-info small{color:var(--muted);margin-top:5px}.lesson-type{font-size:12px;color:var(--gold)}.dashboard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.dashboard-card strong{font-size:30px;display:block}.dashboard-card span{color:var(--muted);font-size:12px}.course-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.course-item{background:#fff;border:1px solid var(--line);padding:18px;border-radius:18px}.course-item header{display:flex;justify-content:space-between;gap:10px}.course-item h3{margin:0 0 7px}.player{margin-top:25px}.player-top{display:flex;align-items:center;gap:20px;margin-bottom:22px}.course-progress{flex:1}.player-grid{display:grid;grid-template-columns:280px 1fr;gap:24px}.side-lessons{border-left:1px solid var(--line);padding-left:16px}.side-lessons h3{margin-top:0}.side-lesson{width:100%;display:flex;gap:10px;align-items:center;border:0;background:transparent;padding:12px;border-radius:12px;text-align:right}.side-lesson.current{background:var(--mint);color:var(--green)}.lesson-view{padding:8px}.lesson-view h1{font-size:31px}.lesson-content{font-size:18px;line-height:2.1;background:#fbfcfc;border:1px solid var(--line);border-radius:18px;padding:25px}.points{margin-top:18px;border-right:4px solid var(--green);background:var(--mint);padding:16px 20px;border-radius:12px}.points div{margin:8px 0}.question-card{margin-top:22px;border:1px solid var(--line);border-radius:18px;padding:22px}.question-head{display:flex;justify-content:space-between;color:var(--green);font-weight:bold}.question-head small{color:var(--muted);font-weight:normal}.options{display:grid;gap:10px;margin-top:20px}.option{background:#fff;border:1px solid #cfd9d5;border-radius:13px;padding:15px;text-align:right}.option:hover{border-color:var(--green)}.option:disabled{opacity:.75;cursor:not-allowed}.feedback{margin-top:15px;padding:15px;border-radius:13px}.feedback.success{background:#e8f7ef;border:1px solid #bde6ce}.feedback.error{background:#fff0f0;border:1px solid #efc7c7}.retry{margin-top:8px;border:1px solid var(--line);background:#fff;padding:9px 13px;border-radius:10px}.complete-box{margin-top:22px;background:var(--mint);padding:22px;border-radius:18px}.assessment{margin-top:25px}.q-progress{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.q-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}.q-card h2{font-size:22px;line-height:1.7}.answer{width:100%;text-align:right;background:#fff;border:1px solid var(--line);padding:14px;border-radius:12px;margin:7px 0}.answer.selected{border:2px solid var(--green);background:var(--mint)}.assessment-nav{display:flex;justify-content:space-between;margin-top:18px}.result{background:#fff;border:1px solid var(--line);border-radius:22px;padding:35px;text-align:center}.score{font-size:60px;font-weight:900;color:var(--green)}@media(max-width:900px){.hero,.detail-head,.player-grid{grid-template-columns:1fr}.grid{grid-template-columns:1fr 1fr}.dashboard-grid{grid-template-columns:1fr 1fr}.side-lessons{border-left:0;border-bottom:1px solid var(--line);padding:0 0 15px}.course-list{grid-template-columns:1fr}}@media(max-width:600px){.top{padding:0 15px}.wrap{padding:20px 12px}.hero{padding:24px}.hero h1{font-size:29px}.grid,.dashboard-grid{grid-template-columns:1fr}.section-head{align-items:flex-start;flex-direction:column}.card-bottom{align-items:flex-start;flex-direction:column}.brand span{display:none}}
.next-note{color:var(--green);font-weight:800;margin-top:10px}.q-card #answerNote{margin-top:15px}