*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.65}a{color:var(--accent)}.wrap{width:min(1180px,100% - 40px);margin:0 auto}.site-top{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.site-top .wrap{display:flex;align-items:center;gap:18px;height:62px}.site-logo{display:flex;align-items:center;gap:11px;color:var(--text);text-decoration:none}.site-logo .mark{width:38px;height:38px;border-radius:11px;flex-shrink:0;display:block}.site-logo .name{display:flex;flex-direction:column;line-height:1.15}.site-logo .name b{font-size:17px;font-weight:700}.site-logo .name span{font-size:12px;color:var(--text-mute)}.site-logo:hover{text-decoration:none}.site-logo:hover .name b{color:var(--accent)}@media (max-width:520px){.site-logo .name span{display:none}}.site-nav{display:flex;gap:4px;margin-left:auto;align-items:center}.site-nav a{padding:8px 12px;border-radius:9px;color:var(--text-dim);text-decoration:none;font-size:14.5px}.site-nav a:hover{background:var(--bg2);color:var(--text);text-decoration:none}.site-nav a.btn-main{color:var(--on-accent)}.site-nav a.btn-main:hover{background:var(--accent);color:var(--on-accent)}.site-nav a.btn-ghost{color:var(--text)}.btn-main{display:inline-block;padding:11px 22px;background:var(--accent);color:var(--on-accent);font-weight:700;font-size:15px;border-radius:11px;text-decoration:none;border:1px solid var(--accent);white-space:nowrap}.btn-main:hover{filter:brightness(1.08);text-decoration:none}.btn-ghost{display:inline-block;padding:11px 22px;background:transparent;color:var(--text);font-weight:600;font-size:15px;border:1px solid var(--border);border-radius:11px;text-decoration:none;white-space:nowrap}.btn-ghost:hover{border-color:var(--text-mute);text-decoration:none}.btn-sm{padding:8px 16px;font-size:14px}.hero{padding:74px 0 54px}.hero h1{font-size:clamp(30px,4.6vw,48px);line-height:1.15;margin:0 0 18px;letter-spacing:-0.5px}.hero .lead{font-size:clamp(16px,1.8vw,19px);color:var(--text-dim);max-width:62ch;margin:0 0 28px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.hero-note{color:var(--text-mute);font-size:13.5px;margin-top:14px}.counters{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:44px 0 0}.counter{background:var(--bg2);border:1px solid var(--border);border-radius:14px;padding:18px 20px}.counter b{display:block;font-size:27px;color:var(--accent);line-height:1.2}.counter span{font-size:13.5px;color:var(--text-dim)}.sec{padding:54px 0;border-top:1px solid var(--border)}.sec h2{font-size:clamp(22px,2.6vw,30px);margin:0 0 10px;letter-spacing:-0.3px}.sec .sub{color:var(--text-dim);margin:0 0 28px;max-width:70ch}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}@media (max-width:900px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:620px){.grid-3{grid-template-columns:1fr}}.feat{background:var(--bg2);border:1px solid var(--border);border-radius:14px;padding:22px}.feat h3{display:flex;align-items:center;gap:10px;margin:0 0 8px;font-size:17px;line-height:1.3}.feat .ico{font-size:20px;line-height:1;width:36px;height:36px;display:grid;place-items:center;border-radius:10px;background:color-mix(in srgb,var(--accent) 14%,var(--bg3));flex-shrink:0}.feat p{margin:0;color:var(--text-dim);font-size:14.5px}.cat-nav{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}.cat-nav a{padding:7px 15px;border:1px solid var(--border);border-radius:999px;background:var(--bg2);color:var(--text-dim);font-size:13.5px;text-decoration:none}.cat-nav a:hover,.cat-nav a.on{color:var(--text);border-color:var(--text-mute);text-decoration:none}.cat-group{margin-bottom:40px}.cat-group h3{font-size:13px;text-transform:uppercase;letter-spacing:.8px;color:var(--text-mute);margin:0 0 14px}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px}.ccard{display:flex;flex-direction:column;background:var(--bg2);border:1px solid var(--border);border-radius:16px;padding:20px;text-decoration:none;color:inherit;transition:border-color .15s,transform .15s}.ccard:hover{border-color:var(--accent);transform:translateY(-2px);text-decoration:none}.ccard-top{display:flex;align-items:center;gap:13px;margin-bottom:12px}.ccard-ico{width:46px;height:46px;display:grid;place-items:center;font-size:24px;border-radius:12px;background:color-mix(in srgb,var(--c) 16%,var(--bg3));border:1px solid color-mix(in srgb,var(--c) 40%,transparent);flex-shrink:0}.ccard h3{margin:0;font-size:17px;line-height:1.3}.ccard .csub{font-size:13px;color:var(--text-mute)}.ccard p{margin:0 0 14px;color:var(--text-dim);font-size:14px;flex:1}.ccard-meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}.tag{font-size:12px;padding:3px 10px;border-radius:999px;background:var(--bg3);border:1px solid var(--border);color:var(--text-dim)}.tag.age{border-color:color-mix(in srgb,var(--c) 45%,transparent);color:var(--text)}.course-hero{padding:48px 0 34px}.course-hero .row{display:flex;align-items:center;gap:18px;margin-bottom:16px}.course-hero .big-ico{width:68px;height:68px;display:grid;place-items:center;font-size:34px;border-radius:16px;background:color-mix(in srgb,var(--c) 16%,var(--bg3));border:1px solid color-mix(in srgb,var(--c) 40%,transparent);flex-shrink:0}.course-hero h1{margin:0;font-size:clamp(26px,3.4vw,38px);line-height:1.2}.course-hero .csub{color:var(--text-dim);font-size:16px}.course-hero .lead{color:var(--text-dim);max-width:70ch;margin:0 0 24px}.two-col{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start}@media (max-width:900px){.two-col{grid-template-columns:1fr}}.panel{background:var(--bg2);border:1px solid var(--border);border-radius:16px;padding:22px}.panel h3{margin:0 0 12px;font-size:16px}.panel + .panel{margin-top:16px}.panel.sticky{position:sticky;top:84px}.track-list{display:flex;flex-direction:column;gap:8px}.track-row{display:flex;align-items:baseline;gap:10px;padding:10px 12px;background:var(--bg3);border:1px solid var(--border);border-radius:10px;font-size:14px}.track-row b{font-size:14px}.track-row span{margin-left:auto;color:var(--text-dim);font-size:13px;text-align:right}.prog-list{counter-reset:sec;display:flex;flex-direction:column;gap:10px}.prog-item{display:flex;gap:14px;padding:16px 18px;background:var(--bg2);border:1px solid var(--border);border-radius:13px}.prog-num{width:30px;height:30px;flex-shrink:0;display:grid;place-items:center;border-radius:9px;background:color-mix(in srgb,var(--c) 18%,var(--bg3));color:var(--text);font-weight:700;font-size:14px}.prog-body{min-width:0}.prog-body b{display:block;font-size:15.5px;margin-bottom:3px}.prog-body p{margin:0 0 6px;color:var(--text-dim);font-size:14px}.prog-meta{font-size:12.5px;color:var(--text-mute)}.skills{margin:0;padding-left:20px;color:var(--text-dim)}.skills li{margin-bottom:7px}.cta{text-align:center;padding:46px 24px;background:var(--bg2);border:1px solid var(--border);border-radius:18px;margin:0 0 46px}.doc .cta{margin-top:34px}.panel + .cta{margin-top:18px}.cta h2{margin:0 0 10px;font-size:clamp(22px,2.8vw,30px)}.cta p{color:var(--text-dim);margin:0 0 22px}.donate{display:flex;gap:18px;align-items:center;flex-wrap:wrap;background:var(--bg2);border:1px solid var(--border);border-left:4px solid var(--gold);border-radius:14px;padding:20px 22px}.donate div{flex:1;min-width:240px}.donate b{display:block;margin-bottom:4px}.donate p{margin:0;color:var(--text-dim);font-size:14px}.site-foot{border-top:1px solid var(--border);padding:34px 0 44px;margin-top:40px;color:var(--text-mute);font-size:13.5px}.site-foot .cols{display:grid;grid-template-columns:minmax(0,1.8fr) repeat(4,minmax(0,1fr));gap:28px;margin-bottom:22px;align-items:start}@media (max-width:860px){.site-foot .cols{grid-template-columns:1fr 1fr}}@media (max-width:560px){.site-foot .cols{grid-template-columns:1fr}}.foot-brand p{margin:0 0 12px;line-height:1.6;color:var(--text-mute)}.foot-mark{display:flex;align-items:center;gap:10px;margin-bottom:10px}.foot-mark img{border-radius:10px;display:block}.foot-mark b{font-size:17px;color:var(--text)}.foot-donate{display:inline-block !important;padding:7px 14px;border:1px solid var(--border);border-radius:999px;font-size:13px;color:var(--text-dim) !important;margin:0 !important}.foot-donate:hover{border-color:var(--gold);color:var(--text) !important}.site-foot h4{margin:0 0 10px;font-size:12px;text-transform:uppercase;letter-spacing:.7px;color:var(--text-dim)}.site-foot a{display:block;color:var(--text-dim);text-decoration:none;margin-bottom:6px}.site-foot a:hover{color:var(--text);text-decoration:none}.site-foot .bottom{padding-top:18px;border-top:1px solid var(--border)}.doc{padding:40px 0 20px}.doc p,.doc li{font-size:16px;line-height:1.8}.doc ul{margin-bottom:16px}.doc h1{font-size:clamp(26px,3.2vw,34px);margin:0 0 8px}.doc .upd{color:var(--text-mute);font-size:13.5px;margin-bottom:26px}.doc h2{font-size:19px;margin:30px 0 10px}.doc p,.doc li{color:var(--text-dim)}.doc ul{padding-left:20px}.doc li{margin-bottom:6px}.doc b{color:var(--text)}@media (max-width:640px){.hero{padding:46px 0 34px}.sec{padding:40px 0}.site-nav .nav-link{display:none}.site-nav .nav-auth{display:none}.site-nav .site-burger{display:inline-flex}.site-nav{gap:8px}}@media (max-width:380px){.site-nav{gap:6px}}.site-theme,.site-burger{width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:var(--bg2);color:var(--text);cursor:pointer;place-items:center;font-size:16px;line-height:1;flex-shrink:0}.site-theme{display:inline-grid}.site-theme:hover,.site-burger:hover{border-color:var(--accent)}.site-burger{display:none;flex-direction:column;gap:4px}.site-burger span{display:block;width:17px;height:2px;border-radius:2px;background:var(--text);transition:transform .18s ease,opacity .18s ease}.site-top.menu-open .site-burger span:nth-child(1){transform:translateY(6px) rotate(45deg)}.site-top.menu-open .site-burger span:nth-child(2){opacity:0}.site-top.menu-open .site-burger span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.site-menu{display:grid;gap:2px;padding:10px 20px 16px;border-top:1px solid var(--border);background:var(--bg)}.site-menu[hidden]{display:none}.site-menu a{padding:12px 10px;border-radius:10px;color:var(--text);text-decoration:none;font-size:15.5px}.site-menu a:hover{background:var(--bg2);text-decoration:none}.site-menu-auth{display:flex;gap:10px;margin-top:8px}.site-menu-auth a{flex:1;text-align:center}.auth-modal{padding:26px 26px 22px}.auth-head{display:flex;align-items:center;gap:13px;margin-bottom:18px}.auth-mark{border-radius:11px;flex-shrink:0}.auth-head h3{margin:0 0 2px;font-size:19px}.auth-head p{margin:0}.auth-body .field{margin-bottom:13px}.auth-body .btn-lg{width:100%;margin-top:6px}.auth-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--border);font-size:13.5px;color:var(--text-dim)}.auth-terms{margin:10px 0 0;font-size:12px;color:var(--text-mute);line-height:1.5}.hp-field{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.bg-aura{position:fixed;inset:0;z-index:-2;overflow:hidden;pointer-events:none}.bg-aura i{position:absolute;display:block;border-radius:50%;filter:blur(90px);opacity:.5;will-change:transform}.bg-aura i:nth-child(1){width:46vw;height:46vw;top:-14vw;left:-8vw;background:radial-gradient(circle,var(--accent),transparent 70%);animation:drift-a 26s ease-in-out infinite alternate}.bg-aura i:nth-child(2){width:38vw;height:38vw;top:6vw;right:-10vw;background:radial-gradient(circle,var(--purple),transparent 70%);opacity:.34;animation:drift-b 32s ease-in-out infinite alternate}.bg-aura i:nth-child(3){width:34vw;height:34vw;bottom:-12vw;left:26vw;background:radial-gradient(circle,var(--green),transparent 70%);opacity:.2;animation:drift-a 38s ease-in-out infinite alternate-reverse}@keyframes drift-a{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(6vw,4vw,0) scale(1.12)}}@keyframes drift-b{from{transform:translate3d(0,0,0) scale(1.06)}to{transform:translate3d(-5vw,6vw,0) scale(0.94)}}.bg-grid{position:fixed;inset:0;z-index:-1;pointer-events:none;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:62px 62px;opacity:.22;mask-image:linear-gradient(180deg,#000 0%,transparent 78%);-webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 78%)}.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}.reveal.seen{opacity:1;transform:none}.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:46px;align-items:center}@media (max-width:940px){.hero-grid{grid-template-columns:1fr;gap:34px}}.hero h1 .accent{background:linear-gradient(120deg,var(--accent),var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}.btn-main{position:relative;overflow:hidden}.btn-main::after{content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.35),transparent);transition:left .55s ease}.btn-main:hover::after{left:130%}.demo-card{background:color-mix(in srgb,var(--bg2) 92%,transparent);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-lg);overflow:hidden;backdrop-filter:blur(6px)}.demo-bar{display:flex;align-items:center;gap:7px;padding:11px 15px;border-bottom:1px solid var(--border);background:var(--bg3)}.demo-bar u{width:10px;height:10px;border-radius:50%;background:var(--border);display:block}.demo-bar u:nth-child(1){background:#e06c62}.demo-bar u:nth-child(2){background:#e0b862}.demo-bar u:nth-child(3){background:#63c98a}.demo-bar span{margin-left:8px;font-size:12.5px;color:var(--text-mute)}.demo-body{padding:20px 22px 22px}.demo-q{font-size:15.5px;font-weight:600;margin-bottom:14px;line-height:1.5}.demo-opt{display:flex;align-items:center;gap:10px;padding:10px 13px;margin-bottom:8px;border:1px solid var(--border);border-radius:11px;background:var(--bg);font-size:14px;color:var(--text-dim);transition:border-color .25s,background .25s,color .25s}.demo-opt i{width:16px;height:16px;border-radius:50%;border:2px solid var(--text-mute);flex-shrink:0;transition:border-color .25s,background .25s}.demo-opt.pick{border-color:var(--accent);color:var(--text)}.demo-opt.pick i{border-color:var(--accent);background:var(--accent)}.demo-opt.right{border-color:var(--green);background:color-mix(in srgb,var(--green) 12%,transparent);color:var(--text)}.demo-opt.right i{border-color:var(--green);background:var(--green)}.demo-res{margin-top:14px;padding:11px 14px;border-radius:11px;border:1px solid color-mix(in srgb,var(--green) 45%,transparent);background:color-mix(in srgb,var(--green) 12%,transparent);font-size:13.5px;color:var(--text);opacity:0;transform:translateY(6px);transition:opacity .4s ease,transform .4s ease}.demo-res.show{opacity:1;transform:none}.ccard{position:relative;overflow:hidden}.ccard::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:linear-gradient(135deg,var(--c),transparent 55%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .25s;pointer-events:none}.ccard:hover::before{opacity:1}.feat{transition:border-color .2s,transform .2s}.feat:hover{border-color:var(--text-mute);transform:translateY(-2px)}.counter b{font-variant-numeric:tabular-nums}.counter,.feat,.ccard,.panel,.prog-item,.cta,.donate{background:color-mix(in srgb,var(--bg2) 88%,transparent);backdrop-filter:blur(4px)}@media (prefers-reduced-motion:reduce){.bg-aura i{animation:none}.reveal{opacity:1;transform:none;transition:none}.btn-main::after{display:none}.demo-res{opacity:1;transform:none}}.cookie-bar{position:fixed;left:50%;bottom:16px;transform:translateX(-50%);z-index:200;width:min(760px,calc(100% - 24px));display:flex;align-items:center;gap:14px;padding:13px 16px;border:1px solid var(--border);border-radius:14px;background:color-mix(in srgb,var(--bg2) 92%,transparent);backdrop-filter:blur(10px);box-shadow:0 12px 34px rgba(0,0,0,.28);animation:cookie-in .25s ease-out}.cookie-bar p{margin:0;flex:1;font-size:13.5px;line-height:1.5;color:var(--text-dim)}.cookie-bar a{color:var(--accent)}.cookie-bar .btn-main{flex-shrink:0;padding:9px 18px;font-size:14px}@keyframes cookie-in{from{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%,0)}}@media (prefers-reduced-motion:reduce){.cookie-bar{animation:none}}@media (max-width:560px){.cookie-bar{flex-direction:column;align-items:stretch;text-align:left}.cookie-bar .btn-main{width:100%;text-align:center}}