/* Prompt Kit PH. Corzo palette + clean editorial layout. */
:root{--bg:#0a1628;--surface:#0f1f38;--panel:#12233f;--border:rgba(255,255,255,.09);--text:#f4f6fa;--muted:#9aa8bf;--red:#c41e3a;--red2:#ff4d66;--r:20px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.65 Inter,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;overflow-x:hidden}
a{color:#ff7a8c}a:hover{color:#fff}
img{max-width:100%;height:auto}
.skip{position:absolute;left:-999px;top:8px;background:#fff;color:#000;padding:8px 12px;border-radius:8px;z-index:99}.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--red2);outline-offset:3px}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
header.top{position:sticky;top:0;z-index:30;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:rgba(10,22,40,.8);border-bottom:1px solid var(--border)}
.top .in{max-width:1180px;margin:0 auto;height:64px;display:flex;align-items:center;gap:16px;padding:0 20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#fff;text-decoration:none;letter-spacing:-.02em;white-space:nowrap}
.brand i{width:24px;height:24px;border-radius:8px;background:conic-gradient(from 0deg,var(--red),#fff,#1e3a5f,var(--red));animation:spin 8s linear infinite}
.brand em{font-style:normal;color:var(--red2)}.brand small{color:var(--muted);font-weight:500;font-size:12px}
@keyframes spin{to{transform:rotate(360deg)}}
nav.main{margin-left:auto}nav.main ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
nav.main a{display:block;color:var(--muted);text-decoration:none;font-size:14.5px;padding:8px 14px;border-radius:999px}
nav.main a:hover{color:#fff}nav.main a[aria-current]{background:var(--red);color:#fff;box-shadow:0 8px 30px -10px rgba(196,30,58,.8)}
@media(max-width:820px){.brand small{display:none}nav.main{overflow-x:auto;max-width:62vw}nav.main a{padding:8px 10px;font-size:13.5px}}
main{display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.narrow{max-width:780px}
.hero{position:relative;overflow:hidden;padding:96px 0 72px;border-bottom:1px solid var(--border)}
.hero.sm{padding:64px 0 44px}
.gridbg{position:absolute;inset:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.4;pointer-events:none;animation:float 14s ease-in-out infinite}
.o1{width:460px;height:460px;background:var(--red);top:-180px;left:-160px}.o2{width:420px;height:420px;background:#1e4f8f;top:40px;right:-160px;animation-delay:-6s}
@keyframes float{50%{transform:translate(40px,30px) scale(1.08)}}
.hero .wrap{position:relative}
.hgrid{display:grid;gap:44px;align-items:center}@media(min-width:980px){.hgrid{grid-template-columns:1.1fr .9fr}}
.pill{display:inline-flex;gap:8px;align-items:center;padding:6px 14px;border-radius:999px;border:1px solid var(--border);background:rgba(255,255,255,.04);font-size:13px;color:var(--muted)}
.pill b{width:8px;height:8px;border-radius:50%;background:var(--red);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(196,30,58,.7)}70%{box-shadow:0 0 0 10px rgba(196,30,58,0)}}
h1{font-size:clamp(38px,6vw,72px);line-height:1.03;letter-spacing:-.045em;margin:20px 0;font-weight:850}
.hero.sm h1{font-size:clamp(34px,5vw,56px)}
.grad{background:linear-gradient(90deg,var(--red),var(--red2),#fff);-webkit-background-clip:text;background-clip:text;color:transparent;background-size:200% auto;animation:sh 8s linear infinite}
@keyframes sh{to{background-position:200% center}}
.lead{font-size:clamp(17px,2vw,20px);color:var(--muted);max-width:680px;margin:0}
.ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 22px;border-radius:999px;font:700 15px/1 inherit;font-family:inherit;text-decoration:none;border:1px solid var(--border);color:#fff;background:rgba(255,255,255,.04);cursor:pointer;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);color:#fff}
.btn.pri{background:linear-gradient(90deg,var(--red),#e63950);border:0;box-shadow:0 10px 40px -10px rgba(196,30,58,.7)}
.btn.sm{min-height:36px;padding:8px 14px;font-size:13.5px}
section.sec{padding:80px 0}
.eyebrow{font-size:12.5px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--red2);margin:0 0 10px}
h2{font-size:clamp(26px,3.4vw,40px);line-height:1.12;letter-spacing:-.03em;margin:0 0 14px;font-weight:820}
h3{letter-spacing:-.01em;line-height:1.3}
.muted{color:var(--muted)}
.card{border-radius:var(--r);background:linear-gradient(160deg,var(--panel),var(--surface));border:1px solid var(--border);padding:24px;transition:border-color .3s,transform .3s}
.card:hover{border-color:rgba(196,30,58,.5)}
.glow{position:relative;box-shadow:0 30px 80px -30px rgba(196,30,58,.55)}
.glow:before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:conic-gradient(from var(--a,0deg),transparent 0 70%,var(--red2) 85%,transparent);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;animation:rot 6s linear infinite;pointer-events:none}
@property --a{syntax:"<angle>";inherits:false;initial-value:0deg}
@keyframes rot{to{--a:360deg}}
.nb-head{display:flex;justify-content:space-between;font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.nb-tabs{display:flex;gap:8px;margin:14px 0;flex-wrap:wrap}
.chip{min-height:40px;padding:8px 14px;border-radius:999px;border:1px solid var(--border);background:rgba(255,255,255,.04);color:var(--text);font:600 14px/1 inherit;font-family:inherit;cursor:pointer}
.chip[aria-pressed=true]{background:var(--red);border-color:var(--red);color:#fff}
.part{margin-top:10px;padding:12px 14px;border-radius:12px;background:rgba(0,0,0,.25);border-left:3px solid var(--border);opacity:.35;transition:opacity .4s,border-color .4s,transform .4s}
.part.on{opacity:1;border-color:var(--red2);transform:translateX(4px)}
.part b{font-size:11.5px;letter-spacing:.14em;color:var(--red2)}
.part p{font:500 14px/1.55 ui-monospace,Menlo,Consolas,monospace;margin:4px 0 0}
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:28px;list-style:none;padding:0}
@media(min-width:760px){.steps{grid-template-columns:repeat(4,1fr)}}
.steps li{padding:18px;border-radius:16px;border:1px solid var(--border);background:rgba(255,255,255,.03);transition:background .5s,border-color .5s}
.steps li.on{background:rgba(196,30,58,.16);border-color:rgba(255,77,102,.6)}
.steps span{display:block;font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--red2)}
.steps strong{display:block;font-size:17px;margin-top:4px}.steps p{margin:6px 0 0;font-size:14px;color:var(--muted)}
.grid{display:grid;gap:18px;margin-top:28px}@media(min-width:640px){.grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:980px){.grid{grid-template-columns:repeat(3,1fr)}}
.kitcard{display:flex;flex-direction:column;gap:10px;text-decoration:none;color:var(--text);height:100%}
.kitcard:hover{transform:translateY(-3px);color:var(--text)}
.kitcard img{border-radius:12px;display:block;width:100%;aspect-ratio:3/2;object-fit:cover;background:var(--surface)}
.kitcard h3{margin:0;font-size:19px}.kitcard p{margin:0;font-size:15px;color:var(--muted)}
.tag{display:inline-block;align-self:flex-start;font-size:11.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;padding:4px 10px;border-radius:999px;background:rgba(196,30,58,.16);color:#ff8a9a;border:1px solid rgba(255,77,102,.35)}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.search{width:100%;max-width:520px;min-height:48px;padding:12px 16px;border-radius:12px;background:#081222;border:1px solid var(--border);color:var(--text);font:inherit}
label.lbl{display:block;font-weight:700;margin:0 0 8px}
.count{margin-top:12px;color:var(--muted);font-size:14px}
.crumbs ol{display:flex;flex-wrap:wrap;gap:6px;list-style:none;padding:0;margin:0 0 6px;font-size:14px;color:var(--muted)}
.crumbs li+li:before{content:"/";margin-right:6px;opacity:.5}.crumbs a{color:var(--muted)}
.meta{display:flex;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:14px;margin-top:14px}
.notice{margin:24px 0;padding:14px 18px;border-radius:14px;background:rgba(196,30,58,.12);border:1px solid rgba(255,77,102,.4);font-weight:600}
.layout{display:grid;gap:40px;padding:56px 20px}@media(min-width:1000px){.layout{grid-template-columns:240px 1fr}}
.toc{position:sticky;top:84px;align-self:start;font-size:14.5px}
.toc ol{list-style:none;padding:0;margin:8px 0 0;border-left:1px solid var(--border)}
.toc a{display:block;padding:6px 14px;color:var(--muted);text-decoration:none;border-left:2px solid transparent;margin-left:-1px}
.toc a.on,.toc a:hover{color:#fff;border-color:var(--red2)}
@media(max-width:999px){.toc{position:static}}
article.prose{max-width:760px}
.prose h2{margin-top:52px;scroll-margin-top:84px}.prose h3{margin-top:28px;font-size:20px}
.prose li{margin:6px 0}
.pblock{position:relative;margin:14px 0;border-radius:16px;background:#081222;border:1px solid var(--border);overflow:hidden}
.pblock .ph{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--border);font-size:12.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--red2)}
.pblock pre{margin:0;padding:16px;white-space:pre-wrap;word-break:break-word;font:500 14.5px/1.6 ui-monospace,Menlo,Consolas,monospace;color:var(--text)}
.copy{min-height:34px;padding:6px 14px;border-radius:999px;border:1px solid var(--border);background:rgba(255,255,255,.06);color:#fff;font:700 13px/1 inherit;font-family:inherit;cursor:pointer}
.copy.ok{background:var(--red);border-color:var(--red)}
.checklist{list-style:none;padding:0}.checklist li{padding-left:30px;position:relative}
.checklist li:before{content:"";position:absolute;left:0;top:5px;width:18px;height:18px;border-radius:6px;border:2px solid var(--red2)}
.pager{display:grid;gap:14px;margin-top:48px}@media(min-width:640px){.pager{grid-template-columns:1fr 1fr}}
.pager a{text-decoration:none;color:var(--text)}.pager small{color:var(--muted);display:block}
.pager .next{text-align:right}
.tools{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.builder label{display:block;font-weight:700;margin:18px 0 8px}
.builder fieldset{border:0;padding:0;margin:18px 0 0}.builder legend{font-weight:700;margin-bottom:8px;padding:0}
.out{margin-top:20px}
footer.site{border-top:1px solid var(--border);margin-top:40px;padding:36px 0 96px;color:var(--muted);font-size:14px}
footer.site .wrap{display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between}
footer.site a{color:var(--muted)}footer.site ul{list-style:none;display:flex;gap:16px;flex-wrap:wrap;margin:0;padding:0}
.mbar{position:fixed;left:0;right:0;bottom:0;z-index:25;display:flex;gap:8px;padding:10px 12px;background:rgba(10,22,40,.94);backdrop-filter:blur(10px);border-top:1px solid var(--border);transform:translateY(110%);transition:transform .35s}
.mbar.show{transform:none}.mbar .btn{flex:1}
@media(min-width:768px){.mbar{display:none}footer.site{padding-bottom:40px}}
.js .rv{opacity:0;transform:translateY(24px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.js .rv.in{opacity:1;transform:none}
.cta-box{border-radius:30px;padding:52px 28px;text-align:center;background:linear-gradient(120deg,rgba(196,30,58,.22),rgba(18,35,63,.9) 55%,rgba(255,255,255,.06));border:1px solid var(--border)}
.cta-box .ctas{justify-content:center}
@media(prefers-reduced-motion:reduce){*,*:before{animation:none!important;transition:none!important;scroll-behavior:auto!important}.js .rv{opacity:1;transform:none}}
@media print{
 body{background:#fff;color:#000;font-size:12pt}
 header.top,footer.site,.mbar,.toc,.tools,.copy,.pager,.related,.orb,.gridbg,.skip{display:none!important}
 .hero{padding:0;border:0}.layout{display:block;padding:0}
 .pblock{background:#fff;border:1px solid #999;break-inside:avoid}.pblock pre,.pblock .ph{color:#000}
 .notice{background:#fff;color:#000;border:1px solid #000}
 .grad{color:#000;-webkit-text-fill-color:#000;background:none}
 a{color:#000}.muted,.meta,.lead{color:#333}
 .js .rv{opacity:1;transform:none}
}
.preview{margin:28px 0 0}.pv{display:grid;gap:14px;grid-template-columns:1fr 1fr;max-width:900px}
.pv img{display:block;width:100%;border-radius:14px;border:1px solid var(--border);box-shadow:0 24px 60px -30px rgba(196,30,58,.6)}
.preview figcaption{margin-top:10px;font-size:14px;color:var(--muted)}
@media print{.preview{display:none}}
@media(max-width:600px){nav.main li:first-child{display:none}nav.main{max-width:none}nav.main a{padding:7px 8px;font-size:13px}.brand span{font-size:15px}.top .in{gap:8px;padding:0 12px}}
.artbanner{margin:20px 0;border-radius:16px;overflow:hidden;border:1px solid rgba(255,255,255,.12)}.artbanner img{display:block;width:100%;aspect-ratio:16/6;height:auto;object-fit:cover}@media(max-width:640px){.artbanner img{aspect-ratio:4/3}}@media print{.artbanner{display:none}}