:root{--bg: #0b0f1a;--bg2: #0e1424;--card: rgba(255,255,255,.055);--card-brd: rgba(255,255,255,.12);--txt: #eef2ff;--muted: #9aa6c7;--accent1: #7c6cff;--accent2: #36d1c4;--accent3: #ff7ad9;--ok: #3ddc84;--radius: 18px;--surface: rgba(4,7,16,.55);--surface-brd: rgba(255,255,255,.1);--inline-code: rgba(255,255,255,.12);--code-bg: #070b15;--code-txt: #e6ebff;--topbar-bg: rgba(8,11,20,.55);--orb-op: .5;--body-bg: radial-gradient(1200px 800px at 15% -10%, #1a1140 0%, transparent 55%), radial-gradient(1000px 700px at 110% 10%, #06303a 0%, transparent 50%), linear-gradient(180deg, var(--bg), var(--bg2));--shadow: 0 1px 0 rgba(255,255,255,.06) inset, 0 18px 40px -18px rgba(0,0,0,.75), 0 6px 14px -8px rgba(0,0,0,.55);--shadow-hi: 0 1px 0 rgba(255,255,255,.1) inset, 0 34px 64px -22px rgba(0,0,0,.82), 0 12px 24px -10px rgba(0,0,0,.6);--img-shadow: 0 26px 52px -22px rgba(0,0,0,.85)}html[data-theme=light]{--bg: #eef1fb;--bg2: #e4e9f7;--card: rgba(255,255,255,.74);--card-brd: rgba(22,30,60,.12);--txt: #141b35;--muted: #51608a;--accent1: #6a5cff;--accent2: #0f9f92;--accent3: #d4338b;--ok: #1f9d57;--surface: rgba(255,255,255,.94);--surface-brd: rgba(22,30,60,.1);--inline-code: rgba(22,30,60,.09);--code-bg: #0f1426;--code-txt: #e6ebff;--topbar-bg: rgba(255,255,255,.72);--orb-op: .26;--body-bg: radial-gradient(1200px 800px at 15% -10%, #d8d0ff 0%, transparent 55%), radial-gradient(1000px 700px at 110% 10%, #c2ecec 0%, transparent 50%), linear-gradient(180deg, var(--bg), var(--bg2));--shadow: 0 1px 0 rgba(255,255,255,.65) inset, 0 18px 40px -20px rgba(30,40,90,.35), 0 6px 14px -10px rgba(30,40,90,.25);--shadow-hi: 0 1px 0 rgba(255,255,255,.8) inset, 0 34px 64px -24px rgba(30,40,90,.4), 0 12px 24px -12px rgba(30,40,90,.3);--img-shadow: 0 26px 52px -24px rgba(30,40,90,.4);color-scheme:light}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--body-bg);background-attachment:fixed;color:var(--txt);min-height:100vh;overflow-x:hidden}.orb{position:fixed;border-radius:50%;filter:blur(60px);opacity:var(--orb-op);z-index:0;pointer-events:none;animation:float 18s ease-in-out infinite}.orb.a{width:340px;height:340px;background:var(--accent1);top:-80px;left:-60px}.orb.b{width:300px;height:300px;background:var(--accent2);bottom:-100px;right:-40px;animation-delay:-6s}@keyframes float{0%,to{transform:translate(0) scale(1)}50%{transform:translate(30px,-24px) scale(1.08)}}.glass{background:var(--card);border:1px solid var(--card-brd);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);border-radius:var(--radius);box-shadow:var(--shadow)}.pill{display:inline-block;text-decoration:none;text-align:center;background:linear-gradient(120deg,var(--accent1),var(--accent2));color:#fff;border:none;border-radius:999px;padding:11px 22px;font-weight:700;cursor:pointer;font-size:15px;box-shadow:0 8px 24px #7c6cff59;transition:transform .12s ease}.pill:hover{transform:translateY(-1px)}.pill:disabled{opacity:.5;cursor:not-allowed}.ghost{display:inline-block;text-decoration:none;background:transparent;color:var(--txt);border:1px solid var(--card-brd);border-radius:999px;padding:9px 16px;font-weight:600;cursor:pointer;font-size:14px;box-shadow:0 6px 15px -7px #00000080;transition:transform .12s ease,box-shadow .12s ease}.ghost:hover{border-color:var(--accent2);transform:translateY(-1px);box-shadow:0 10px 22px -8px #0000008c}header.topbar{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:12px;padding:14px 22px;backdrop-filter:blur(12px);background:var(--topbar-bg);border-bottom:1px solid var(--card-brd)}.brand{font-weight:800;font-size:16px;display:flex;align-items:center;gap:9px;white-space:nowrap}.brand .dot{width:11px;height:11px;border-radius:50%;background:linear-gradient(120deg,var(--accent1),var(--accent3));box-shadow:0 0 14px var(--accent1)}.topbar .spacer{flex:1}#themebtn{background:transparent;border:1px solid var(--card-brd);border-radius:999px;padding:8px 12px;font-size:16px;cursor:pointer;color:var(--txt);box-shadow:0 6px 15px -7px #00000080}.layout{position:relative;z-index:1;display:grid;grid-template-columns:300px 1fr;gap:22px;max-width:1220px;margin:22px auto;padding:0 18px;align-items:start;perspective:1600px}nav.sidenav{position:sticky;top:84px;max-height:calc(100vh - 104px);overflow-y:auto;padding:14px}.catgroup h4{margin:12px 6px 6px;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent2)}.projbtn{display:block;text-decoration:none;color:var(--txt);padding:8px 10px;border-radius:12px;font-size:13px;line-height:1.35}.projbtn:hover{background:#ffffff0f}.projbtn.active{background:linear-gradient(120deg,#7c6cff40,#36d1c42e);border:1px solid var(--card-brd)}main.stage{min-width:0;min-height:60vh;padding:28px;box-shadow:var(--shadow-hi)}.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent3);font-weight:700}.level-chip{display:inline-block;font-size:11px;padding:3px 10px;border-radius:999px;border:1px solid var(--card-brd);color:var(--muted);margin-left:8px;text-transform:capitalize}h1.projtitle{font-size:27px;margin:8px 0 6px;line-height:1.18}.outcome{color:var(--muted);margin:0 0 16px;font-size:15px;line-height:1.55}figure.hero{position:relative;margin:0 0 18px;border-radius:18px;overflow:hidden;box-shadow:var(--img-shadow);border:1px solid var(--card-brd)}figure.hero img{display:block;width:100%;height:clamp(180px,30vw,300px);object-fit:cover}figure.hero figcaption{position:absolute;bottom:8px;right:12px;font-size:11px;color:#fff;text-shadow:0 1px 4px rgba(0,0,0,.8)}.videobtn{display:inline-flex;align-items:center;gap:8px;margin:0 10px 18px 0;padding:10px 18px;border-radius:999px;text-decoration:none;font-weight:700;font-size:14px;color:#fff;background:linear-gradient(120deg,#ff3b5c,#ff7ad9);box-shadow:0 8px 22px #ff3b5c52;transition:transform .12s ease}.videobtn:hover{transform:translateY(-1px)}.videowrap{position:relative;width:100%;aspect-ratio:16 / 9;margin:0 0 16px;border-radius:16px;overflow:hidden;background:#000;box-shadow:var(--img-shadow);border:1px solid var(--card-brd)}.videowrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.videocap{font-size:12.5px;color:var(--muted);margin:-6px 0 18px}.audiowrap{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin:0 0 18px;padding:10px 14px;border-radius:14px;background:#7c6cff14;border:1px solid var(--card-brd)}.audiowrap .audiolabel{font-weight:700;font-size:14px;white-space:nowrap}.audiowrap audio{flex:1 1 240px;min-width:200px;height:36px}.prereqs{font-size:13px;color:var(--muted);margin:0 0 18px}.prereqs a{color:var(--accent1);text-decoration:none;font-weight:600}.prose{background:var(--surface);border:1px solid var(--surface-brd);border-radius:14px;padding:20px 24px;line-height:1.65;font-size:15.5px}.prose>h1:first-child{display:none}.prose h2{font-size:21px;margin:28px 0 10px}.prose h3{font-size:17px;margin:22px 0 8px}.prose p{margin:0 0 14px}.prose ul,.prose ol{margin:0 0 14px;padding-left:24px}.prose li{margin:5px 0}.prose code{background:var(--inline-code);padding:2px 6px;border-radius:6px;font-size:.92em}.prose pre{border-radius:12px;padding:14px 16px;overflow-x:auto;font-size:13.5px;line-height:1.5;border:1px solid var(--card-brd);margin:0 0 14px}.prose pre code{background:transparent;padding:0}.prose blockquote{margin:0 0 14px;padding:10px 16px;border-left:3px solid var(--accent2);background:#36d1c412;border-radius:0 10px 10px 0}.prose blockquote p:last-child{margin-bottom:0}.prose img{max-width:100%;border-radius:12px}.prose table{border-collapse:collapse;margin:0 0 14px;display:block;overflow-x:auto;max-width:100%}.prose th,.prose td{border:1px solid var(--surface-brd);padding:7px 11px;font-size:13.5px;text-align:left}.prose a{color:var(--accent1)}.prose hr{border:none;border-top:1px solid var(--surface-brd);margin:22px 0}.navrow{display:flex;justify-content:space-between;gap:12px;margin-top:24px;flex-wrap:wrap}.gate{position:fixed;inset:0;z-index:50;display:none;align-items:center;justify-content:center;padding:20px;background:#050810a8;backdrop-filter:blur(10px)}.gate.show{display:flex}.gatecard{max-width:460px;width:100%;padding:34px;text-align:center}.gatecard h2{margin:6px 0 8px;font-size:24px}.gatecard p{color:var(--muted);margin:0 0 20px}.gatecard input{width:100%;padding:13px 15px;border-radius:12px;border:1px solid var(--card-brd);background:#0000004d;color:var(--txt);font-size:15px;margin:7px 0}.plans{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:18px 0 4px}@media(max-width:460px){.plans{grid-template-columns:1fr}}.planbtn{position:relative;display:flex;flex-direction:column;gap:4px;align-items:flex-start;text-align:left;padding:16px 16px 14px;border-radius:16px;border:1px solid var(--card-brd);background:#ffffff0a;color:var(--txt);cursor:pointer;transition:transform .12s ease,border-color .12s ease,box-shadow .12s ease}.planbtn:hover{transform:translateY(-2px);border-color:var(--accent2);box-shadow:0 14px 30px -14px #0009}.planbtn.best{border-color:var(--accent1);background:linear-gradient(160deg,#7c6cff29,#36d1c41a)}.planbtn .planname{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:700}.planbtn .planprice{font-size:26px;font-weight:800;line-height:1}.planbtn .planprice span{font-size:13px;font-weight:600;color:var(--muted)}.planbtn .planprice .was{text-decoration:line-through;opacity:.45;font-size:15px;font-weight:700;margin-right:6px}.planbtn .plannote{font-size:12px;color:var(--accent2);font-weight:600}.planbtn .badge{position:absolute;top:-10px;right:12px;font-size:10px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:3px 8px;border-radius:999px;background:linear-gradient(120deg,var(--accent1),var(--accent2));color:#fff}.linkbtn{background:none;border:none;color:var(--accent1);font:inherit;cursor:pointer;padding:0;text-decoration:underline}.hidden{display:none!important}.spin{display:inline-block;width:15px;height:15px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:sp .7s linear infinite;vertical-align:-2px}@keyframes sp{to{transform:rotate(360deg)}}@media(max-width:900px){.layout{grid-template-columns:1fr}nav.sidenav{position:static;max-height:260px;order:2}main.stage{order:1;padding:20px}}
