@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500;600;700;800&family=Source+Sans+3:wght@400;500;600;700&display=swap');
:root{--navy:#0e3a66;--blue:#1c7ed6;--orange:#f28a1e;--bg:#f4f9fe;--line:#d5e5f5;--muted:#596f87;--ink:#22364f}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:18px 'Source Sans 3',Arial,sans-serif}h1,h2,h3,h4,.brand{font-family:Montserrat,Arial,sans-serif;color:var(--navy)}h1{font-size:clamp(32px,4.5vw,58px);line-height:1.13;letter-spacing:-1.6px}h2{font-size:29px;letter-spacing:-.6px}h3{font-size:20px}a{color:#1163a8;text-underline-offset:4px}button,.button{font:700 16px 'Source Sans 3',Arial;cursor:pointer;border:0;border-radius:12px;padding:12px 20px;background:var(--navy);color:white;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}button:hover,.button:hover{filter:brightness(1.12)}button:disabled{opacity:.5;cursor:wait}button.secondary,.button.secondary{background:white;color:var(--navy);border:1px solid var(--line)}button.orange,.button.orange{background:var(--orange);color:#fff}button.danger{background:#a72b38}.small{font-size:14px}.muted{color:var(--muted)}header{min-height:94px;background:#fff;border-bottom:1px solid var(--line);padding:20px max(24px,calc((100vw - 1240px)/2));display:flex;align-items:center;justify-content:space-between;gap:20px;position:relative;z-index:2}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:21px;line-height:1.25;white-space:nowrap}.brand b{font-weight:500}.brand small{display:block;color:var(--muted);font:14px 'Source Sans 3',Arial}.mark{background:var(--navy);border-radius:14px;color:white;padding:8px 15px;font-weight:800;box-shadow:5px 5px 0 #f28a1e}nav{display:flex;gap:8px;align-items:center;flex-wrap:wrap}nav a{font-size:16px;text-decoration:none;color:var(--navy);padding:8px 11px;border-radius:8px}nav a:hover,nav a.active{background:#e7f2fc}main{max-width:1240px;margin:0 auto;padding:42px 24px 80px;min-height:70vh}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:54px;align-items:center;padding:18px 0 48px}.hero h1{margin:18px 0 24px}.eyebrow{font-size:13px;letter-spacing:2px;text-transform:uppercase;font-weight:700;color:#1266ac}.hero p{font-size:21px;line-height:1.6}.hero-art{position:relative;background:var(--navy);border-radius:30px;padding:44px;color:white;overflow:hidden;box-shadow:0 20px 50px #0e3a6620;min-height:340px}.hero-art:before{content:'';position:absolute;width:230px;height:230px;right:-70px;top:-65px;border:48px solid #1c7ed6;border-radius:50%}.hero-art h2{color:#fff;position:relative;font-size:32px;max-width:260px;line-height:1.3}.hero-art p{position:relative;font-size:17px;max-width:280px}.art-row{display:flex;gap:12px;position:relative;margin-top:26px}.art-row span{background:#ffffff14;border:1px solid #ffffff30;border-radius:12px;padding:13px;font-size:15px}.dot{width:34px;height:7px;display:block;background:var(--orange);border-radius:10px}.toolbar,.row{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.toolbar{margin:22px 0}.toolbar input{flex:2;min-width:200px}.toolbar select{flex:1;min-width:160px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.card,.panel{border:1px solid var(--line);border-radius:20px;background:white;padding:26px}.card{display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-3px);box-shadow:0 12px 28px #0e3a660c}.card h3{line-height:1.5}.card .button{margin-top:auto;align-self:start}.card-top{height:100px;background:linear-gradient(120deg,#e8f3fd,#f5faff);margin:-26px -26px 22px;padding:24px;border-radius:20px 20px 0 0;display:flex;align-items:center;gap:16px}.course-icon{font-size:32px;color:var(--blue);font-family:Montserrat;font-weight:800}.badge{display:inline-block;border-radius:20px;background:#e8f3fd;color:#125b97;padding:4px 11px;font-size:13px;font-weight:700}.badge.green{background:#e3f5ed;color:#197347}.badge.orange{background:#fff0df;color:#94520c}.meta{color:var(--muted);font-size:15px;line-height:1.8}.empty{padding:40px;border:1px dashed #aac8e6;border-radius:18px;text-align:center;color:var(--muted);grid-column:1/-1}.stack{display:grid;gap:24px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px}.split{display:grid;grid-template-columns:290px minmax(0,1fr);gap:26px}.sidebar{align-self:start}.sidebar a{display:block;padding:13px;border-radius:8px;text-decoration:none;border-bottom:1px solid var(--line);font-size:16px}.sidebar a.active{background:#e9f3ff}.content{white-space:pre-wrap;line-height:1.75;overflow-wrap:anywhere}.content:empty{display:none}.video-wrap{background:#0a2948;border-radius:18px;overflow:hidden;box-shadow:0 14px 38px #0e3a6620;margin-bottom:24px}video,iframe{display:block;width:100%;aspect-ratio:16/9;border:0}video{max-height:70vh}.video-caption{padding:12px 20px;color:#d9ecff;font-size:14px}.question{padding:22px 0;border-bottom:1px solid var(--line)}.choice{display:flex;gap:10px;align-items:start;padding:10px;border-radius:8px;background:var(--bg);margin:8px 0}.choice input{width:auto;margin:5px 0}.correct{color:#197347}.wrong{color:#a72b38}label{display:block;font-weight:600;font-size:16px;margin-bottom:15px}input,textarea,select{display:block;width:100%;border:1px solid #bed4e8;border-radius:10px;padding:12px 14px;font:17px 'Source Sans 3',Arial;background:#fff;color:var(--ink);margin-top:6px}input:focus,textarea:focus,select:focus,button:focus-visible,a:focus-visible{outline:3px solid #1c7ed650;outline-offset:2px}textarea{min-height:110px;resize:vertical}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.full{grid-column:1/-1}progress{width:100%;height:10px;accent-color:var(--blue)}.error{background:#fff0f0;color:#9b2230;border:1px solid #f1c2ca;padding:14px;border-radius:10px}.success{background:#e8f7ef;color:#1d6844;padding:16px;border-radius:10px}.note{padding:16px 20px;background:#edf5fd;border-left:4px solid var(--blue);border-radius:8px;font-size:16px}.form-error:empty{display:none}.form-error{color:#a72b38;margin:12px 0}.auth{max-width:550px;margin:20px auto}.auth h1{font-size:34px}.qr{display:block;width:230px;max-width:100%;margin:20px auto}.secret{overflow-wrap:anywhere;background:#edf5fd;padding:12px;text-align:center;letter-spacing:2px}.recovery{display:grid;grid-template-columns:1fr 1fr;gap:12px;font-family:monospace;background:#edf5fd;padding:20px;border-radius:10px}dialog{border:1px solid var(--line);border-radius:20px;max-width:620px;width:calc(100% - 32px);padding:32px;color:var(--ink)}dialog::backdrop{background:#092c4dcc}.close{float:right;padding:2px 10px;background:#edf5fd;color:var(--navy);font-size:26px}#notice{position:fixed;bottom:24px;right:24px;z-index:50;background:var(--navy);color:white;border-radius:12px;padding:16px 24px;box-shadow:0 8px 30px #0002;display:none;max-width:calc(100% - 48px)}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:16px}th,td{text-align:left;padding:14px 10px;border-bottom:1px solid var(--line);vertical-align:top}td .row{min-width:200px}td button{padding:7px 10px;font-size:14px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:25px}.stat strong{display:block;font:800 32px Montserrat;color:var(--navy)}.stat span{font-size:15px}.lesson-list a{padding:18px 0;display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);text-decoration:none}.editor-question{padding:20px;border:1px solid var(--line);border-radius:15px;background:var(--bg);margin:16px 0}.editor-question textarea{min-height:70px}.file-list{display:flex;gap:10px;flex-wrap:wrap;font-size:15px}.file-list a{padding:8px 12px;background:var(--bg);border-radius:8px}.message{padding:16px 0;border-bottom:1px solid var(--line)}.message p{white-space:pre-wrap;overflow-wrap:anywhere}.breadcrumbs{margin-bottom:26px;font-size:15px}footer{border-top:1px solid var(--line);background:white;display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;padding:30px max(24px,calc((100vw - 1192px)/2));font-size:15px;color:var(--muted)}footer strong{color:var(--navy)}@media(max-width:950px){.grid{grid-template-columns:repeat(2,1fr)}.hero{gap:24px}.hero-art{padding:28px}header{flex-wrap:wrap}.stats{grid-template-columns:repeat(2,1fr)}}@media(max-width:650px){main{padding:26px 18px 50px}.hero,.split{grid-template-columns:1fr}.hero{padding-bottom:30px}.hero-art{min-height:260px}.hero-art h2{font-size:26px}.grid,.form-grid{grid-template-columns:1fr}.full{grid-column:auto}h1{letter-spacing:-1px}h2{font-size:25px}.section-head{align-items:start;flex-direction:column}.card,.panel{padding:20px}.card-top{margin:-20px -20px 20px}.sidebar{max-height:280px;overflow:auto}.brand{font-size:19px}nav{gap:2px}nav a{font-size:14px;padding:7px}header{padding:18px}.stats{gap:10px}.stat strong{font-size:26px}.art-row span{font-size:13px}footer{padding:25px 18px}.recovery{font-size:13px}}
.wide{grid-column:span 2}@media(max-width:650px){.wide{grid-column:auto}}
.wide{grid-column:span 2}@media(max-width:650px){.wide{grid-column:auto}}