:root{--bg:#0b0c10;--bg2:#13151c;--ink:#14161d;--mut:#6b7080;--line:#e7e8ee;--acc:#ff4d2e;--acc2:#e01e5a;--soft:#f6f6f9;--r:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,.logo,.stats b,.chip b,.glyph{font-family:"Space Grotesk",Inter,sans-serif;letter-spacing:-.02em}
a{color:inherit}.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.ic{width:16px;height:16px;flex:none;vertical-align:-3px}.ic.sm{width:14px;height:14px}.ic.lg{width:28px;height:28px}.ic.xl{width:56px;height:56px}
.btn{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--acc),var(--acc2));color:#fff!important;border:0;border-radius:999px;padding:12px 22px;font-weight:600;text-decoration:none;cursor:pointer;font:600 15px Inter,sans-serif;white-space:nowrap}
.btn.sm{padding:8px 16px;font-size:14px}
/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(11,12,16,.92);backdrop-filter:blur(12px);border-bottom:1px solid #ffffff12}
.nav-in{max-width:1200px;margin:0 auto;padding:12px 24px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-size:20px;font-weight:700}.logo b{color:var(--acc)}
.menu{display:flex;align-items:center;gap:6px}.menu>a,.dd>button{color:#d6d8e0;text-decoration:none;font:500 15px Inter,sans-serif;background:none;border:0;padding:10px 12px;border-radius:10px;cursor:pointer;display:flex;align-items:center;gap:4px}
.menu>a:hover,.dd>button:hover{color:#fff;background:#ffffff10}.menu>.btn{margin-left:8px;padding:8px 16px}
.dd{position:relative}.mega{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);background:#fff;border-radius:16px;box-shadow:0 24px 60px #0005;padding:22px;min-width:460px;opacity:0;visibility:hidden;transition:.18s}
.mega.narrow{min-width:300px}.dd:hover .mega,.dd:focus-within .mega{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.mega h4{margin:0 0 10px;font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--mut)}
.mcols{display:grid;grid-template-columns:repeat(3,1fr);gap:2px 10px}.mcols.one{grid-template-columns:1fr}
.mcols a{padding:7px 10px;border-radius:8px;text-decoration:none;font-size:14px;font-weight:500}.mcols a:hover{background:var(--soft);color:var(--acc)}
.burger{display:none;cursor:pointer;padding:8px}.burger i{display:block;width:22px;height:2px;background:#fff;margin:5px 0;border-radius:2px}
/* hero */
.hero{position:relative;background:radial-gradient(900px 500px at 85% -10%,#ff4d2e55,transparent 60%),radial-gradient(700px 500px at 10% 120%,#e01e5a40,transparent 60%),var(--bg);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(#ffffff08 1px,transparent 1px),linear-gradient(90deg,#ffffff08 1px,transparent 1px);background-size:48px 48px;mask:linear-gradient(#000,transparent 85%);pointer-events:none}
.hero-in{position:relative;z-index:1;padding:96px 24px 72px}
.eyebrow{display:inline-block;border:1px solid #ffffff2a;background:#ffffff0d;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;color:#ffb3a3}
.hero h1{font-size:clamp(40px,6.4vw,76px);line-height:1.02;margin:22px 0 18px;max-width:900px}.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--acc),#ff9a5a);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(17px,2vw,20px);color:#c4c7d2;max-width:640px;margin:0}.lead.dark{color:#3a3e4b}
.hsearch{display:flex;align-items:center;gap:10px;background:#fff;border-radius:999px;padding:6px 6px 6px 20px;max-width:620px;margin:32px 0 40px;color:var(--mut);box-shadow:0 20px 50px #0006}
.hsearch input{flex:1;border:0;outline:0;font:16px Inter,sans-serif;min-width:0;color:var(--ink);padding:10px 0}
.stats{display:flex;gap:40px;flex-wrap:wrap}.stats div{color:#9a9eac;font-size:14px}.stats b{display:block;color:#fff;font-size:30px}
/* sections */
.sec{padding:56px 24px 8px}.sh{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:20px;gap:12px}.sh a{color:var(--acc);font-weight:600;text-decoration:none}
.h2{font-size:clamp(26px,3vw,34px);margin:0}.muted{color:var(--mut)}
.chips{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px}
.chip{display:flex;flex-direction:column;gap:2px;padding:16px;border-radius:16px;text-decoration:none;background:linear-gradient(135deg,hsl(var(--h) 75% 96%),#fff);border:1px solid hsl(var(--h) 60% 90%);font-weight:600;transition:.15s}
.chip b{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,hsl(var(--h) 80% 55%),hsl(calc(var(--h) + 40) 80% 45%));margin-bottom:8px;font-size:14px}
.chip small{color:var(--mut);font-weight:500}.chip:hover{transform:translateY(-3px);box-shadow:0 10px 24px #0000000f}
.filters{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:22px}
.filters select{appearance:none;padding:12px 38px 12px 14px;border:1px solid var(--line);border-radius:12px;font:500 14px Inter,sans-serif;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7080' stroke-width='3'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 14px center;color:var(--ink)}
/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
.card{display:flex;flex-direction:column;border-radius:var(--r);overflow:hidden;text-decoration:none;background:#fff;border:1px solid var(--line);transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px #0b0c1018;border-color:transparent}
.card-art{position:relative;height:130px;background:radial-gradient(circle at 80% 20%,hsl(calc(var(--h) + 30) 90% 60%),transparent 55%),linear-gradient(135deg,hsl(var(--h) 70% 22%),hsl(var(--h) 60% 10%));overflow:hidden}
.card-art::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,#ffffff07 0 2px,transparent 2px 14px)}
.glyph{position:absolute;right:14px;bottom:-14px;font-size:76px;font-weight:700;color:#ffffff1c}
.badge{display:inline-block;background:#ffffffe8;color:#111;font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;position:relative;z-index:1}
.card-art .badge{position:absolute;top:14px;left:14px}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1}.card h3{margin:0 0 4px;font-size:18px;line-height:1.25}
.skills{margin:0 0 14px;color:var(--mut);font-size:13px}
.meta{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;margin-top:auto;font-size:13px;color:var(--mut)}.meta span{display:inline-flex;align-items:center;gap:5px}
.pill{padding:3px 10px;border-radius:999px;font-weight:600;font-size:12px}.pill.beginner{background:#e6f7ee;color:#148a4b}.pill.intermediate{background:#fff3df;color:#b26b00}.pill.advanced{background:#fde7ec;color:#c21d4a}
.skills-g{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.skill{padding:22px;border-radius:var(--r);background:var(--soft);text-decoration:none;transition:.15s;display:flex;flex-direction:column}.skill:hover{background:#fff;box-shadow:0 0 0 1px var(--line),0 12px 30px #0000000d}
.skill h3{margin:0 0 6px;font-size:18px}.skill p{margin:0 0 12px;color:var(--mut);font-size:14px;flex:1}.skill span{color:var(--acc);font-weight:600;font-size:14px;display:flex;gap:4px;align-items:center}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin-bottom:20px}
.pcard{position:relative;display:flex;flex-direction:column;padding:26px;border-radius:22px;color:#fff;text-decoration:none;min-height:250px;background:radial-gradient(circle at 100% 0,hsl(calc(var(--h) + 30) 90% 55% / .7),transparent 55%),linear-gradient(160deg,hsl(var(--h) 50% 18%),#0b0c10);transition:.2s}
.pcard.static{color:var(--ink);background:var(--soft);min-height:0}.pcard:hover{transform:translateY(-4px)}
.pcard h3{font-size:24px;margin:14px 0 8px;line-height:1.15}.pcard p{color:#c9ccd6;font-size:15px;margin:0 0 16px}.pcard.static p{color:var(--mut)}
.pcard .badge{align-self:flex-start}.pcard .meta{color:#c9ccd6}.go{margin-top:16px;font-weight:600;display:flex;gap:6px;align-items:center;color:#ffb3a3}
/* page hero */
.phero{color:#fff;background:radial-gradient(700px 400px at 90% 0,hsl(calc(var(--h) + 20) 90% 55% / .45),transparent 60%),linear-gradient(160deg,hsl(var(--h) 45% 14%),var(--bg) 70%);padding:56px 0 48px}
.phero h1{font-size:clamp(34px,5vw,56px);line-height:1.05;margin:8px 0 14px;max-width:880px}
.crumbs{font-size:14px;color:#9a9eac;margin:0}.crumbs a{color:#d6d8e0;text-decoration:none}.count{color:#ffb3a3;font-weight:600;margin:18px 0 0}
.meta.big{font-size:14px;color:#c4c7d2;margin-top:6px}.tagsl{margin:16px 0 0;display:flex;gap:10px;flex-wrap:wrap}.tagsl a{color:#ffb3a3;text-decoration:none;font-size:14px;font-weight:500}
/* drill layout */
.dl{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;padding-top:40px;padding-bottom:8px}
.dl h2{font-size:24px;margin:36px 0 12px}
.video{aspect-ratio:16/9;border-radius:var(--r);background:linear-gradient(135deg,#1b1d26,#0b0c10);color:#7d8191;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;font-size:13px;font-weight:600;letter-spacing:.06em;border:2px dashed #3a3d4a;text-align:center;padding:12px}
.keys{list-style:none;padding:0;margin:0;display:grid;gap:10px}.keys li{display:flex;gap:12px;align-items:flex-start;background:var(--soft);padding:14px 16px;border-radius:12px}.keys .ic{color:#148a4b;margin-top:4px}
.timeline{list-style:none;padding:0;margin:0;counter-reset:s}.timeline li{display:flex;gap:16px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.timeline .t{font:700 15px "Space Grotesk",monospace;background:var(--bg);color:#fff;border-radius:10px;padding:6px 10px;min-width:62px;text-align:center}
.note{display:flex;gap:14px;background:var(--soft);border-radius:14px;padding:16px 18px;margin:16px 0}.note p{margin:4px 0 0;color:#4a4e5c;font-size:15px}.note .ic{width:22px;height:22px;color:var(--mut);margin-top:2px}
.note.warn{background:#fff6e8}.note.warn .ic{color:#d07a00}
aside{position:sticky;top:90px;align-self:start;display:grid;gap:16px}
.box{border:1px solid var(--line);border-radius:var(--r);padding:20px}.box h4{margin:0 0 12px}.box dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:8px 16px;font-size:14px}.box dt{color:var(--mut)}.box dd{margin:0;font-weight:600}
.ph-box{border:2px dashed #c9ccd6;border-radius:var(--r);padding:20px;text-align:center;color:var(--mut);background:#fafafc;font-size:13px;font-weight:600;letter-spacing:.04em}.ph-box small{font-weight:500;letter-spacing:0}.ph-box a{color:var(--acc)}
.sponsor-strip{padding:28px}
.week{margin:28px 0}.week h3{display:flex;gap:10px;align-items:center;font-size:20px}
.prose{max-width:860px}
/* newsletter + footer */
#newsletter{padding:72px 24px 0}
.news{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:center;padding:44px;border-radius:28px;color:#fff;background:radial-gradient(600px 300px at 100% 0,#ff4d2e66,transparent 60%),var(--bg)}
.news h2{font-size:clamp(24px,3vw,32px);margin:12px 0 6px;line-height:1.15}.news p{color:#a9adba;margin:0}.news .ic{color:var(--acc)}
.news form{display:flex;flex-wrap:wrap;gap:10px}.news input{flex:1;min-width:200px;padding:14px 18px;border-radius:999px;border:1px solid #ffffff22;background:#ffffff10;color:#fff;font:15px Inter,sans-serif}
.phl{width:100%;color:#80859a;font-size:12px}
.foot{background:var(--bg);color:#9a9eac;margin-top:72px;padding:56px 0 28px}.fcols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.foot h4{color:#fff;margin:0 0 12px;font-size:15px}.foot a:not(.logo){display:block;text-decoration:none;padding:4px 0;font-size:14px}.foot a:hover{color:#fff}.foot p{font-size:14px;max-width:280px}
.legal{border-top:1px solid #ffffff12;margin-top:36px;padding-top:20px;font-size:13px}
[hidden]{display:none!important}
@media(max-width:900px){
 .burger{display:block}.menu{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg);flex-direction:column;align-items:stretch;padding:12px 16px 20px;border-bottom:1px solid #ffffff12}
 #mt:checked~.menu{display:flex}.mega{position:static;transform:none!important;opacity:1;visibility:visible;display:none;min-width:0;background:#ffffff08;box-shadow:none}.mega h4{display:none}.mcols a{color:#d6d8e0}
 .dd:hover .mega,.dd:focus-within .mega{display:block}.menu>.btn{margin:8px 0 0;justify-content:center}
 .dl{grid-template-columns:1fr;gap:16px}aside{position:static}.filters{grid-template-columns:1fr 1fr}.news{grid-template-columns:1fr;padding:28px}.fcols{grid-template-columns:1fr 1fr}
 .hero-in{padding:64px 24px 48px}.stats{gap:24px}}
@media(max-width:520px){.hsearch .btn{padding:10px 14px}.chips{grid-template-columns:1fr 1fr}.stats b{font-size:24px}}
.menu>.btn{background:linear-gradient(135deg,var(--acc),var(--acc2))}
.fighter{position:absolute;z-index:1;right:max(0px,calc(50% - 700px));top:52%;transform:translateY(-50%);width:min(37vw,560px);pointer-events:none}
.fighter svg{width:100%;height:auto;display:block}
@media(max-width:900px){.fighter{width:340px;right:-90px;top:30px;transform:none;opacity:.22}}
.vembed{position:relative;aspect-ratio:16/9;border-radius:var(--r);overflow:hidden;background:#000}.vembed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.vcredit{font-size:13px;color:var(--mut);margin:10px 0 0}.vcredit a{color:var(--ink);font-weight:600}
.more-wrap{text-align:center;margin:28px 0 0}.btn.ghost{background:#fff!important;color:var(--ink)!important;border:1px solid var(--line)}
.fsearch{padding:12px 14px;border:1px solid var(--line);border-radius:12px;font:500 14px Inter,sans-serif;color:var(--ink);background:#fff}
.filters:has(.fsearch){grid-template-columns:2fr 1fr 1fr 1fr}
.filters select[hidden]{display:none}

.card-art.thumb{aspect-ratio:16/9;height:auto;background:#111}
.card-art.thumb::after{background:linear-gradient(180deg,#0008 0,#0000 38%,#0000 55%,#000c 100%);z-index:1}
.card-art.thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .35s}
.card:hover .card-art.thumb img{transform:scale(1.05)}
.card-art.thumb .badge{z-index:2}
.tplay{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;width:46px;height:46px;border-radius:50%;background:#0009;backdrop-filter:blur(4px);display:grid;place-items:center;color:#fff;opacity:.85;transition:.2s;border:1px solid #fff5}
.tplay .ic{width:26px;height:26px}
.tplay svg circle{display:none}.tplay svg path{fill:#fff;stroke:#fff}
.card:hover .tplay{opacity:1;background:#e8475fdd;border-color:transparent}
.tmeta{position:absolute;left:12px;right:12px;bottom:10px;z-index:2;display:flex;gap:8px;align-items:center;font-size:12px;font-weight:600;color:#fff;text-shadow:0 1px 2px #000a}
.tmeta>span{display:inline-flex;gap:4px;align-items:center;background:#0008;padding:3px 8px;border-radius:999px}
.tmeta .ic.sm{width:13px;height:13px}
.vembed{background-size:cover;background-position:center}
@media(max-width:600px){.tplay{width:40px;height:40px}.tmeta{font-size:11px}}
.card .card-art{height:auto;aspect-ratio:16/9}

/* learn / drill tabs */
.ktabs{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 18px;padding:4px;background:var(--soft);border-radius:14px;width:fit-content;max-width:100%}
.ktab{appearance:none;border:0;background:transparent;color:var(--mut);font:600 14px Inter,sans-serif;padding:10px 16px;border-radius:10px;cursor:pointer;display:inline-flex;align-items:center;gap:8px}
.ktab:hover{color:var(--ink)}.ktab.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px #00000014}
.ktab .tc{font-size:12px;font-weight:700;background:#eef0f5;color:var(--mut);padding:2px 8px;border-radius:999px}.ktab.on .tc{background:linear-gradient(135deg,#ffe4dc,#ffd0e0);color:#c43}
.kchip{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.02em;padding:2px 8px;border-radius:999px;vertical-align:middle;margin-right:6px}
.kchip.learn{background:#e8f1ff;color:#1a5fb4}.kchip.drill{background:#fff0e6;color:#c45a12}
.meta.big .kchip{margin-right:0}
@media(max-width:720px){.ktabs{width:100%}.ktab{flex:1;justify-content:center;padding:10px 8px;font-size:13px}}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0}.nlmsg{flex-basis:100%;margin:4px 6px 0;font-size:14px;min-height:1.2em;color:#a9adba}.nlmsg.ok{color:#5be39b}.nlmsg.err{color:#ff8a73}
/* legacy-page guard: hides old placeholder markup on pages not yet redeployed */
#newsletter:not(:has(.nlf)),.box.ph-box,.sponsor-strip,.video,.menu a[href$="sponsor.html"],.foot a[href$="sponsor.html"]{display:none!important}