@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
:root{--bg:#f3f4f6;--card:#fff;--text:#17202d;--muted:#758092;--line:#e9edf4;--blue:#4169ff;--purple:#8b3ff0}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,Arial,sans-serif;font-size:14px}a{text-decoration:none;color:inherit}button,input,textarea{font:inherit}button{cursor:pointer}main{max-width:1920px;margin:auto;min-height:calc(100vh - 88px)}.topbar{height:88px;background:#fff;border-bottom:5px solid #4169ff;display:flex;align-items:center;gap:32px;padding:0 26px;position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:9px;min-width:160px;font-weight:700;line-height:1}.brand-mark{display:grid;place-items:center;background:#0b1220;color:white;width:48px;height:48px;border-radius:14px;font-size:30px}.nav{display:flex;align-items:center;gap:14px;flex:1;justify-content:space-around}.nav a{font-size:15px;padding:12px 7px;white-space:nowrap;border-radius:8px}.nav a:hover,.nav a.active{color:var(--blue);background:#edf2ff}.top-actions{display:flex;align-items:center;gap:14px}.top-actions button{width:43px;height:43px;border:1px solid var(--line);background:white;border-radius:50%;font-size:24px}.top-actions .apps{border-radius:12px}.avatar{width:43px;height:43px;border-radius:50%;background:linear-gradient(135deg,#ffc773,#5740cb);color:white;display:inline-grid;place-items:center;font-weight:800}.avatar.big{width:76px;height:76px;font-size:23px}.hero{background:#0b1018;color:white;min-height:254px;display:flex;gap:20px;align-items:center;padding:24px 25px}.hero-art{align-self:stretch;width:19%;min-width:180px;border-radius:16px;background:linear-gradient(130deg,#364b5c,#1c2639 55%,#555878);display:grid;place-items:center;font-size:100px;position:relative}.hero-art small{position:absolute;bottom:18px;font-size:14px;font-weight:800;letter-spacing:2px}.hero-person{flex:1;min-width:170px}.hero-person h2{font-size:20px;margin:15px 0 30px}.rank{background:#243243;border-radius:20px;padding:10px 25px;font-weight:700}.hero-stat{background:#223141;border-radius:18px;min-height:198px;min-width:150px;flex:1;padding:20px;display:flex;flex-direction:column;justify-content:space-between}.hero-stat small{font-weight:700}.hero-stat strong{font-size:50px;line-height:1}.hero-stat span{font-size:13px}.hero-stat.medals strong{font-size:52px}.hero-stat.fire strong{font-size:43px}.bar{height:8px;background:#dce4f5;border-radius:10px;overflow:hidden;display:block}.bar i{height:100%;background:#5d84ff;border-radius:10px;display:block}.hero-stat .bar{background:#101b27}.hero-stat .bar i{background:#a9c6e4}.dashboard{display:grid;grid-template-columns:130px minmax(0,1fr) 390px;gap:24px;padding:24px 20px}.side{background:#1e1e1e;border-radius:17px;padding:12px;display:flex;flex-direction:column;gap:12px;align-self:start}.side a{color:#ddd;min-height:85px;border-bottom:1px solid #414141;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:26px;gap:5px}.side a span{font-size:13px;font-weight:600}.side a.selected{background:#333;border-radius:11px;color:white;min-height:60px;flex-direction:row;font-size:20px}.continue-card{min-height:312px;border-radius:22px;background:linear-gradient(110deg,#b17ce7,#7125bb);color:#fff;padding:34px;display:flex;align-items:center;gap:28px;position:relative;padding-bottom:80px}.continue-card .flask{font-size:108px;line-height:1}.continue-card h1{font-size:24px;margin:10px 0}.continue-card p{font-size:18px;margin:0 0 12px}.continue-card small{font-weight:800}.button{border:0;border-radius:10px;background:var(--blue);color:#fff;padding:14px 23px;font-weight:700;display:inline-block;text-align:center}.button:hover{filter:brightness(.94)}.button.white{background:#fff;color:#7734c9;margin-left:auto;white-space:nowrap}.progress{position:absolute;bottom:29px;left:32px;right:32px;display:flex;align-items:center;gap:20px;white-space:nowrap}.progress .bar{flex:1;background:#ffffff66}.progress .bar i{background:#fff}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}.panel{background:var(--card);border-radius:18px;padding:24px;margin-top:24px;box-shadow:0 1px 2px #18253b08}.panel h2{font-size:19px;margin:0 0 20px}.panel h2 small{float:right;color:var(--blue);font-size:13px}.panel p{color:var(--muted);line-height:1.6}.metric-row{display:flex;justify-content:space-between;font-size:23px;font-weight:700}.metric-row small{font-size:12px;color:var(--muted)}.donut{width:125px;height:125px;border-radius:50%;border:17px solid #2ed153;border-left-color:#ff504b;margin:15px auto;display:grid;place-items:center;font-weight:800;font-size:23px}.center{text-align:center}.text-link{color:var(--blue);font-weight:700}.subject-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.subject-grid.large{grid-template-columns:repeat(4,1fr);padding:0 32px 40px}.subject-card{background:linear-gradient(145deg,var(--course),color-mix(in srgb,var(--course),black 30%));color:#fff;border-radius:17px;min-height:160px;padding:22px;display:flex;flex-direction:column;gap:10px;box-shadow:0 8px 20px color-mix(in srgb,var(--course),transparent 80%);transition:transform .2s}.subject-card:hover,.feature:hover{transform:translateY(-3px)}.subject-card span{font-size:42px}.subject-card b{font-size:18px}.subject-card small{color:#ffffffc9}.map{margin:0;min-height:650px;text-align:center}.map h2{text-align:left}.map-plus{width:115px;height:115px;background:linear-gradient(135deg,#6080f7,#9a3acf);border-radius:15px;color:white;font-size:64px;margin:190px auto 24px;display:grid;place-items:center}.page-heading{padding:38px 34px 25px}.page-heading a,.page-heading small{color:var(--blue);font-weight:700}.page-heading h1{font-size:32px;margin:12px 0}.page-heading p{color:var(--muted);font-size:16px;margin:0}.course-banner{margin:0 32px 30px;background:linear-gradient(105deg,var(--course),color-mix(in srgb,var(--course),black 34%));border-radius:20px;color:white;min-height:205px;padding:30px 38px;display:flex;align-items:center;gap:25px}.course-banner>span{font-size:92px}.course-banner h2{font-size:27px;margin:8px 0}.course-layout{padding:0 32px 40px;display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:24px}.course-layout .panel{margin-top:0;margin-bottom:20px}.module h2{border-bottom:1px solid var(--line);padding-bottom:17px}.lesson-row{display:flex;align-items:center;gap:16px;padding:16px;border-bottom:1px solid var(--line)}.lesson-row:hover,.lesson-list a:hover{background:#f4f7ff}.lesson-row>span:last-child{margin-left:auto;color:var(--blue)}.lesson-row small,.lesson-list small{display:block;color:var(--muted);margin-top:5px}.lesson-icon{width:37px;height:37px;border-radius:11px;background:#eaf0ff;color:var(--blue);display:grid;place-items:center}.big-number{font-size:48px;font-weight:800;color:var(--blue)}.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px;padding:0 32px 40px}.lesson-layout .panel{margin-top:0;margin-bottom:24px}.video{aspect-ratio:16/9;background:radial-gradient(circle at 50% 30%,#263c6d,#090e1d 70%);border-radius:18px;color:#fff;display:grid;place-items:center;position:relative}.play{border-radius:50%;background:#ffffff27;width:90px;height:90px;display:grid;place-items:center;font-size:36px;padding-left:5px}.video-caption{position:absolute;bottom:25px;left:28px;font-size:20px;font-weight:700}.lesson-actions{display:flex;align-items:center;gap:22px;margin:19px 0}.lesson-actions a{color:var(--blue);font-weight:700}.lesson-list{align-self:start;max-height:720px;overflow:auto}.lesson-list a{display:flex;gap:13px;padding:12px;border-radius:9px;border-bottom:1px solid var(--line)}.lesson-list a.current{background:#eaf0ff;color:var(--blue)}.lesson-list a>span:first-child{color:var(--blue)}textarea{width:100%;min-height:120px;border:1px solid #d9dfea;border-radius:10px;padding:14px;resize:vertical;margin-bottom:12px}.note{padding:13px;background:#f6f8fe;border-radius:9px}.note small{display:block;color:var(--muted);margin-top:8px}.filter-pills{display:flex;gap:9px;flex-wrap:wrap;padding:0 32px 20px}.pill{border:1px solid #dce4f4;background:#fff;color:#43516b;border-radius:22px;padding:10px 17px}.pill.selected{background:var(--blue);color:white;border-color:var(--blue)}.questions{max-width:920px;padding:0 32px 40px}.question{margin:0 0 20px}.question>small{color:var(--blue);font-weight:700}.question h2{margin:14px 0 22px}.question label{display:flex;align-items:center;gap:13px;padding:11px;border:1px solid var(--line);border-radius:9px;margin:8px 0;cursor:pointer}.question label:hover{border-color:var(--blue)}.question label span{background:#eaf0ff;color:var(--blue);width:30px;height:30px;border-radius:7px;display:grid;place-items:center;font-weight:700}.question button{margin-top:14px}.feedback{padding:14px;border-radius:9px}.feedback.correct{background:#e4faeb;color:#18833d}.feedback.incorrect{background:#fff0ed;color:#b33e34}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:0 32px 40px}.feature-grid .panel{margin:0}.feature{transition:transform .2s;min-height:230px}.feature span{font-size:50px}.feature b{color:var(--blue)}.toast{position:fixed;right:24px;top:100px;z-index:20;background:#21aa61;color:#fff;padding:14px 20px;border-radius:10px}.dark{--bg:#111725;--card:#1c2636;--text:#f2f5ff;--muted:#a6b1c5;--line:#364156}.dark .topbar,.dark .top-actions button{background:#1c2636;color:#fff}.dark .lesson-row:hover,.dark .lesson-list a:hover,.dark .note{background:#29344a}.dark .pill{background:#253048;color:#eee}.dark .pill.selected{background:var(--blue)}[hidden]{display:none!important}@media(max-width:1200px){.nav{overflow-x:auto;justify-content:start}.topbar{gap:12px}.dashboard{grid-template-columns:85px minmax(0,1fr)}.right{display:none}.side a span{font-size:11px}.hero-stat.medals,.hero-stat.fire{display:none}}@media(max-width:760px){.topbar{height:70px;padding:0 12px}.brand{min-width:auto;font-size:11px}.brand-mark{width:35px;height:35px;font-size:22px}.nav{gap:2px}.nav a{font-size:12px}.top-actions{display:none}.hero{flex-wrap:wrap;padding:12px}.hero-art{display:none}.hero-person{min-width:100%;display:flex;align-items:center;gap:12px}.hero-person h2{margin:0}.hero-person .rank{margin-left:auto}.hero-stat{min-height:100px;min-width:calc(50% - 12px)}.hero-stat strong{font-size:30px}.dashboard{display:block;padding:12px}.side{flex-direction:row;overflow:auto;margin-bottom:12px}.side a{min-height:45px;min-width:85px;border:0}.continue-card{display:block;padding:25px 20px 70px}.continue-card .flask{font-size:55px;float:left;margin-right:15px}.continue-card .button{margin-top:20px}.two-col,.subject-grid,.subject-grid.large,.feature-grid,.course-layout,.lesson-layout{grid-template-columns:1fr}.subject-grid.large,.feature-grid,.course-layout,.lesson-layout{padding:0 15px 30px}.map{display:none}.course-banner{margin:0 15px 20px;flex-wrap:wrap}.course-banner>span{font-size:55px}.course-banner .button{margin:0}.page-heading{padding:24px 16px}.page-heading h1{font-size:25px}.questions{padding:0 15px 30px}}