:root{--cream:#FAF7F0;--navy:#091B35;--teal:#074766;--ink:#19384B;--muted:#60767D;--orange:#EE7618;--orange2:#C65006;--panel:#E8EFF0;--panel2:#C9DDE1;--line:#D3DDD9;--white:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--cream);color:var(--ink);font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;font-size:16px;line-height:1.5}
a{color:var(--teal)}a:hover{color:var(--orange2)}
.topbar{position:sticky;top:0;z-index:20;background:var(--navy);color:#fff;display:flex;align-items:center;gap:16px;padding:10px 24px;box-shadow:0 2px 8px rgba(0,0,0,.2)}
.topbar a{color:#fff;text-decoration:none;opacity:.9}.topbar a:hover{opacity:1;color:#FFD6B3}
.topbar .brand{font-weight:bold;letter-spacing:.06em;font-size:13px;text-transform:uppercase}
.topbar .title{flex:1;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .nav a{margin-left:14px;font-size:14px}.topbar .nav a.dis{opacity:.35;pointer-events:none}
.tag{display:inline-block;background:var(--orange);color:#fff;font-weight:bold;font-size:12px;letter-spacing:.08em;padding:3px 10px;border-radius:3px;text-transform:uppercase}
/* стартовая страница */
.hero{max-width:1180px;margin:0 auto;padding:48px 24px 16px;display:flex;gap:32px;align-items:flex-start;flex-wrap:wrap}
.hero img.logo{height:44px}
.hero h1{color:var(--navy);font-size:40px;margin:14px 0 8px;line-height:1.15}
.hero p{color:var(--muted);margin:4px 0;max-width:760px}
.grid{max-width:1180px;margin:0 auto;padding:16px 24px 64px;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.card{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:18px 18px 16px;display:flex;flex-direction:column;gap:8px;min-height:150px;position:relative;text-decoration:none;color:inherit;transition:transform .15s,box-shadow .15s}
a.card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(9,27,53,.12);color:inherit}
.card .num{font-size:12px;font-weight:bold;letter-spacing:.1em;color:var(--orange2);text-transform:uppercase}
.card h3{margin:0;font-size:18px;color:var(--navy);line-height:1.3}
.card .meta{margin-top:auto;font-size:13px;color:var(--muted)}
.card.soon{background:#F3F1EA;color:var(--muted)}.card.soon h3{color:#7A8A94}
.card .bar{position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;background:var(--teal)}.card.soon .bar{background:var(--line)}
/* страница лекции */
.layout>*{min-width:0}.layout{display:grid;grid-template-columns:300px 1fr;max-width:1500px;margin:0 auto;gap:24px;padding:20px 24px 80px}
.toc{position:sticky;top:64px;align-self:start;max-height:calc(100vh - 80px);overflow:auto;background:var(--white);border:1px solid var(--line);border-radius:10px;padding:14px 10px;font-size:14px}
.toc h2{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:4px 8px 8px}
.toc a{display:block;color:var(--ink);text-decoration:none;padding:4px 8px;border-radius:5px;line-height:1.3}
.toc a:hover{background:var(--panel)}.toc a.sec{font-weight:bold;color:var(--teal);margin-top:8px}
.toc a .n{display:inline-block;width:26px;color:var(--muted);font-size:12px}
.toc a.active{background:var(--panel2)}
.lec-head{grid-column:1/-1;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:26px 30px;display:flex;gap:28px;align-items:center;flex-wrap:wrap}
.lec-head h1{color:var(--navy);font-size:32px;margin:6px 0 4px;line-height:1.2}
.lec-head p{margin:2px 0;color:var(--muted)}.lec-head>div{flex:1 1 320px;min-width:0}
.lec-head img{width:340px;max-width:100%;border-radius:8px;border:1px solid var(--line)}
.teacher{margin-top:14px;padding:12px 16px;border-left:4px solid var(--orange);background:var(--panel);border-radius:0 8px 8px 0;display:flex;flex-direction:column;gap:2px;font-size:15px;max-width:520px}.teacher .lbl{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:2px}.teacher b{color:var(--navy);font-size:17px}.teacher a{word-break:break-all}
.controls{display:flex;gap:10px;align-items:center;margin:0 0 14px;font-size:14px;color:var(--muted);flex-wrap:wrap}
.controls button{background:var(--white);border:1px solid var(--line);border-radius:6px;padding:6px 12px;cursor:pointer;color:var(--ink);font-size:14px}
.controls button.on{background:var(--teal);color:#fff;border-color:var(--teal)}
.slide{background:var(--white);border:1px solid var(--line);border-radius:12px;margin:0 0 22px;overflow:hidden;scroll-margin-top:70px}
.slide .head{display:flex;align-items:baseline;gap:12px;padding:12px 18px 8px;border-bottom:1px solid var(--line)}
.slide .head .n{font-size:12px;font-weight:bold;color:var(--orange2);letter-spacing:.08em;min-width:64px}
.slide .head h2{margin:0;font-size:20px;color:var(--navy);font-weight:bold}
.slide .head h2 .secl{color:var(--teal);font-weight:bold;margin-right:8px}
.slide .img{background:#E6E2D8;line-height:0}
.slide .img img{width:100%;height:auto;display:block;cursor:zoom-in}
.slide .text{padding:16px 22px 10px;border-top:1px solid var(--line)}
body.noText .slide .text{display:none}
.text h4{margin:12px 0 4px;color:var(--teal);font-size:16px}.text h4:first-child{margin-top:0}
.text p{margin:6px 0}.text .sub{color:var(--muted);font-style:italic}
.text ul,.text ol{margin:6px 0 10px;padding-left:24px}.text li{margin:3px 0}
.text .pair{margin:6px 0}.text .pair b{color:var(--teal)}.text .pair b::after{content:" — "}
.text .stat{display:flex;gap:14px;align-items:baseline;margin:8px 0}.text .stat .val{font-size:26px;font-weight:bold;color:var(--orange2);white-space:nowrap}
.text .hlist{margin:8px 0}.text h4.stat-h{font-size:26px;color:var(--orange2)}
.text blockquote{margin:10px 0;padding:10px 18px;border-left:4px solid var(--orange);background:var(--panel);font-style:italic;font-size:17px;color:var(--navy)}
.text .source{font-size:13px;color:var(--muted);font-style:italic}.text .note{font-size:14px;color:var(--muted);border-top:1px dashed var(--line);padding-top:8px}
.text dl.timeline{margin:6px 0;display:grid;grid-template-columns:max-content 1fr;gap:4px 14px}.text dl.timeline dt{font-weight:bold;color:var(--orange2)}.text dl.timeline dd{margin:0}
.tw{overflow-x:auto;margin:8px 0}table{border-collapse:collapse;width:100%;font-size:14px}th{background:var(--teal);color:#fff;text-align:left;padding:7px 10px;font-weight:bold}td{padding:6px 10px;border-bottom:1px solid var(--line);vertical-align:top}tr:nth-child(even) td{background:#F4F7F7}td.num{text-align:right;white-space:nowrap}
.tw.chart table{width:auto;min-width:320px}
.pager{display:flex;justify-content:space-between;gap:16px;margin-top:10px}.pager a{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:12px 16px;text-decoration:none;color:var(--navy);max-width:48%}.pager a:hover{border-color:var(--teal)}.pager span.dis{opacity:.4}
/* лайтбокс */
#lb{position:fixed;inset:0;background:rgba(9,27,53,.94);display:none;z-index:50;align-items:center;justify-content:center;flex-direction:column}
#lb.on{display:flex}#lb img{max-width:96vw;max-height:88vh;box-shadow:0 10px 40px rgba(0,0,0,.5)}
#lb .cap{color:#fff;margin-top:10px;font-size:14px;opacity:.85}#lb .x{position:absolute;top:14px;right:22px;color:#fff;font-size:34px;cursor:pointer;line-height:1}
#lb .arr{position:absolute;top:50%;transform:translateY(-50%);color:#fff;font-size:48px;cursor:pointer;padding:20px;user-select:none;opacity:.8}#lb .arr:hover{opacity:1}#lb .prev{left:10px}#lb .next{right:10px}
footer{max-width:1180px;margin:0 auto;padding:20px 24px 40px;color:var(--muted);font-size:13px;border-top:1px solid var(--line)}
@media (max-width:980px){.layout{grid-template-columns:1fr}.toc{position:static;max-height:none}.hero h1{font-size:30px}}
@media (max-width:640px){.topbar .nav{display:none}.lec-head{padding:18px}.lec-head h1{font-size:24px}.slide .text{padding:12px 14px}.grid{padding:8px 16px 40px}}