:root{
  --ink:#071720;--ink2:#0d2835;--ink3:#132734;--paper:#f4f6f7;--white:#fff;
  --muted:#9cb0b9;--red:#e31b23;--cyan:#39c6ca;--amber:#f4ab37;--green:#2ab77b;--violet:#9b92ff;
  --line:rgba(255,255,255,.12);--line2:#d9e1e4;--max:1180px;--narrow:920px;
  --mono:ui-monospace,SFMono-Regular,"Cascadia Mono","JetBrains Mono",Consolas,monospace;
}
*{box-sizing:border-box}
html{background:var(--ink);scroll-behavior:smooth}
body{margin:0;min-width:320px;color:var(--white);
  background:radial-gradient(circle at 80% 0,rgba(57,198,202,.14),transparent 30%),radial-gradient(circle at 8% 46%,rgba(227,27,35,.1),transparent 30%),var(--ink);
  font-family:Inter,"Segoe UI",Arial,sans-serif;text-rendering:optimizeLegibility;-webkit-text-size-adjust:100%}
a{color:inherit}
:focus-visible{outline:3px solid var(--cyan);outline-offset:4px}
h1,h2,h3,h4,p,ul,ol{margin-top:0}
code,kbd{font-family:var(--mono)}

.wrap{width:min(calc(100% - 40px),var(--max));margin:auto}
.wrap-n{width:min(calc(100% - 40px),var(--narrow));margin:auto}
.skip{position:fixed;left:16px;top:-80px;z-index:100;padding:11px 15px;color:#fff;background:var(--red);border-radius:12px;text-decoration:none}
.skip:focus{top:16px}

/* header */
.header{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 0;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:850;letter-spacing:-.025em}
.brand span{display:inline-grid;place-items:center;width:36px;height:36px;color:#fff;background:var(--red);border-radius:11px}
.nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.nav a{padding:8px 12px;color:#c8d8dd;border:1px solid var(--line);border-radius:999px;font-size:13px;text-decoration:none;transition:background .18s ease,color .18s ease}
.nav a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav a[aria-current="page"]{color:#fff;background:rgba(227,27,35,.22);border-color:rgba(227,27,35,.5)}
.note{padding:8px 11px;color:#c5d3d9;border:1px solid var(--line);border-radius:999px;font-size:12px}

/* hero */
.hero{padding:74px 0 80px;max-width:1000px}
.eyebrow{margin-bottom:17px;color:#ff7075;font-size:12px;font-weight:850;letter-spacing:.16em;text-transform:uppercase}
.eyebrow:before{content:"";display:inline-block;width:28px;height:2px;margin:0 10px 4px 0;background:currentColor;vertical-align:middle}
h1{margin:0 0 22px;font-size:clamp(40px,6.2vw,86px);line-height:.92;letter-spacing:-.075em}
.lead{max-width:800px;margin:0 0 28px;color:#bdd0d7;font-size:clamp(18px,1.9vw,23px);line-height:1.45}
.lead strong{color:#fff}
.acts{display:flex;flex-wrap:wrap;gap:11px}
.btn{min-height:52px;display:inline-flex;align-items:center;gap:10px;padding:13px 20px;border:1px solid transparent;border-radius:14px;text-decoration:none;font-weight:800;transition:transform .18s ease,background .18s ease}
.btn:hover{transform:translateY(-2px)}
.btn-p{color:#fff;background:var(--red);box-shadow:0 16px 40px rgba(227,27,35,.25)}
.btn-p:hover{background:#b80e16}
.btn-g{color:#d4e0e4;background:rgba(255,255,255,.05);border-color:var(--line)}
.btn-g:hover{background:rgba(255,255,255,.1)}
.hero-facts{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 28px;padding:0;list-style:none}
.hero-facts li{padding:7px 12px;color:#cfe0e5;background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:999px;font-size:13px}
.hero-facts b{color:#fff}

/* sections */
.section{padding:70px 20px 92px;color:var(--ink);background:var(--paper);border-radius:40px 40px 0 0}
.section.dark{color:#fff;background:linear-gradient(180deg,#0b1e28,#071720);border-radius:0}
.section+.section{border-radius:0}
.section h2{margin:0 0 12px;font-size:clamp(30px,4.3vw,54px);line-height:1.02;letter-spacing:-.06em}
.section h3{margin:44px 0 12px;font-size:clamp(22px,2.4vw,30px);letter-spacing:-.04em}
.sub{max-width:760px;margin:0 0 34px;color:#586b75;font-size:18px;line-height:1.55}
.section.dark .sub{color:#a9c1c9}
.kicker{display:inline-block;margin:0 0 14px;padding:6px 10px;color:#50636c;background:#e6ecee;border-radius:999px;font-size:11px;font-weight:850;letter-spacing:.1em;text-transform:uppercase}
.section.dark .kicker{color:#cfe6ea;background:rgba(255,255,255,.1)}
.prose{max-width:780px;color:#3f5560;font-size:17px;line-height:1.65}
.prose p{margin:0 0 16px}
.prose ul,.prose ol{margin:0 0 18px;padding-left:22px}
.prose li{margin-bottom:8px}
.prose strong{color:var(--ink)}
.prose code{padding:2px 6px;background:#e8eef0;border-radius:6px;font-size:.9em}

/* grid + cards */
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.card{grid-column:span 4;padding:24px;display:flex;flex-direction:column;color:var(--ink);background:#fff;border:1px solid var(--line2);border-radius:20px;text-decoration:none;box-shadow:0 18px 45px rgba(7,23,32,.07)}
a.card{transition:transform .18s ease,box-shadow .18s ease}
a.card:hover{transform:translateY(-4px);box-shadow:0 25px 60px rgba(7,23,32,.14)}
.card.wide{grid-column:span 6}
.card.full{grid-column:span 12}
.card.dark{color:#fff;background:linear-gradient(145deg,#172c38,#071720);border-color:transparent}
.card.dark p,.card.dark li{color:#b2c9d0}
.card.violet{background:linear-gradient(145deg,#f4f1ff,#fff);border-color:#d3ceff}
.card.amber{background:linear-gradient(145deg,#fff8e8,#fff);border-color:#f4d28d}
.card.green{background:linear-gradient(145deg,#effaf4,#fff);border-color:#a9dfc4}
.card.red{background:linear-gradient(145deg,#fff1f1,#fff);border-color:#f3bfc1}
.card h4{margin:0 0 10px;font-size:22px;line-height:1.1;letter-spacing:-.04em}
.card p{margin:0 0 10px;color:#657780;line-height:1.5}
.card p:last-child{margin-bottom:0}
.tag{align-self:flex-start;padding:6px 9px;color:#50636c;background:#edf1f2;border-radius:999px;font-size:10px;font-weight:850;letter-spacing:.07em;text-transform:uppercase}
.dark .tag{color:#d4e9ec;background:rgba(255,255,255,.1)}
.icon{width:52px;height:52px;display:grid;place-items:center;margin:20px 0;color:#fff;background:var(--ink2);border-radius:15px;font-size:22px;font-weight:900}
.violet .icon{background:var(--violet)}
.amber .icon{color:#33240c;background:var(--amber)}
.green .icon{background:var(--green)}
.red .icon{background:var(--red)}
.meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:18px}
.meta span{padding:6px 8px;color:#52656e;background:#f0f3f4;border-radius:7px;font-size:10px}
.dark .meta span{color:#c0d8dd;background:rgba(255,255,255,.08)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:0 0 26px}
.stat{padding:20px;background:#fff;border:1px solid var(--line2);border-radius:18px}
.section.dark .stat{background:rgba(255,255,255,.04);border-color:var(--line)}
.stat b{display:block;font-size:34px;line-height:1;letter-spacing:-.05em}
.stat i{display:block;margin-top:8px;color:#6a7c85;font-size:13px;font-style:normal;line-height:1.35}
.section.dark .stat i{color:#a9c1c9}

/* project rows */
.proj{padding:22px 24px;margin-bottom:14px;background:#fff;border:1px solid var(--line2);border-radius:20px;box-shadow:0 14px 36px rgba(7,23,32,.05)}
.proj-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 14px;margin-bottom:12px}
.proj-head h4{margin:0;font-size:23px;letter-spacing:-.04em}
.proj-head a{color:#0d6f9a}
.proj-purpose{margin:0 0 14px;color:#4c626d;font-size:16px;line-height:1.55;max-width:820px}
.proj-purpose code{padding:2px 6px;background:#eef2f4;border-radius:6px;font-size:.88em}
.kv{display:grid;grid-template-columns:120px 1fr;gap:6px 16px;margin:0 0 14px;font-size:14px}
.kv dt{color:#7d8f97;font-weight:700}
.kv dd{margin:0;color:#3f5560;line-height:1.5}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{padding:5px 9px;color:#3d525c;background:#eef2f4;border:1px solid #e0e7ea;border-radius:7px;font-family:var(--mono);font-size:11px}
.ready{display:flex;align-items:center;gap:12px;margin-top:4px}
.bar{position:relative;flex:1;height:8px;max-width:320px;background:#e6ecee;border-radius:999px;overflow:hidden}
.bar i{position:absolute;left:0;top:0;bottom:0;border-radius:999px;background:var(--green)}
.bar.mid i{background:var(--amber)}
.bar.low i{background:#9fb2bb}
.ready b{font-size:13px;color:#41575f;font-weight:800}
.badge{padding:5px 10px;border-radius:999px;font-size:11px;font-weight:850;letter-spacing:.05em;text-transform:uppercase}
.b-prod{color:#0d5c3c;background:#d7f2e4}
.b-beta{color:#7a4c05;background:#ffeecb}
.b-proto{color:#3a4b54;background:#e6ecee}
.b-priv{color:#5b2ea8;background:#ece7ff}
.b-risk{color:#8d1015;background:#ffe0e1}

/* tables */
.tbl-scroll{overflow-x:auto;margin:0 0 22px;border:1px solid var(--line2);border-radius:16px;background:#fff}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid #eaeff1;vertical-align:top;line-height:1.45}
th{color:#41575f;background:#f7f9fa;font-size:12px;font-weight:850;letter-spacing:.05em;text-transform:uppercase;white-space:nowrap}
tr:last-child td{border-bottom:0}
td code{padding:2px 6px;background:#f0f4f5;border-radius:6px;font-size:12px;white-space:nowrap}
.pill{display:inline-block;padding:4px 8px;border-radius:999px;font-size:11px;font-weight:800;white-space:nowrap}
.p-ok{color:#0d5c3c;background:#d7f2e4}
.p-no{color:#8d1015;background:#ffe0e1}
.p-wait{color:#7a4c05;background:#ffeecb}
.p-neutral{color:#41575f;background:#e9eff1}

/* code */
.code{margin:0;padding:16px 18px;overflow-x:auto;color:#dbe9ee;background:#08161e;border:1px solid #14313f;border-radius:14px;font-family:var(--mono);font-size:12.5px;line-height:1.6;tab-size:2}
.code b{color:#7ee3c7;font-weight:600}
.code i{color:#6d8894;font-style:normal}
.code u{color:#ff9ea2;text-decoration:none}
.code em{color:var(--amber);font-style:normal}
.code-h{display:flex;align-items:center;gap:8px;margin:0 0 8px;font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase}
.code-h.now{color:#b3373d}
.code-h.next{color:#12805a}
.code-h:before{content:"";width:18px;height:2px;background:currentColor}

/* before/after */
.ba{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:0 0 8px}
.ba>div{min-width:0}
.fix{padding:26px;margin:0 0 20px;background:#fff;border:1px solid var(--line2);border-radius:22px;box-shadow:0 16px 44px rgba(7,23,32,.06)}
.fix>h3{margin:0 0 10px;font-size:26px;letter-spacing:-.04em}
.fix-n{display:inline-grid;place-items:center;width:34px;height:34px;margin-right:10px;color:#fff;background:var(--ink2);border-radius:10px;font-size:15px;font-weight:900;vertical-align:middle}
.fix-tags{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 16px}
.why{padding:14px 16px;margin:0 0 18px;color:#4c626d;background:#f3f7f8;border-left:3px solid var(--amber);border-radius:0 12px 12px 0;font-size:15px;line-height:1.55}
.why b{color:var(--ink)}
.gain{display:flex;gap:10px;align-items:flex-start;padding:14px 16px;margin:16px 0 0;color:#12513a;background:#effaf4;border:1px solid #bfe8d2;border-radius:14px;font-size:15px;line-height:1.55}
.gain:before{content:"→";font-weight:900}
.risk-box{padding:22px 24px;margin:0 0 20px;color:#fff;background:linear-gradient(150deg,#3d0d10,#1a0709);border:1px solid #6b1d22;border-radius:22px}
.risk-box h3{margin:0 0 10px;font-size:26px;letter-spacing:-.04em}
.risk-box p{color:#f0c9cb;line-height:1.6}
.risk-box .code{background:#12060a;border-color:#4c1418}

/* toc */
.toc{position:sticky;top:14px;padding:18px 20px;background:#fff;border:1px solid var(--line2);border-radius:18px;font-size:14px}
.toc b{display:block;margin-bottom:10px;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#7d8f97}
.toc ol{margin:0;padding-left:20px;color:#41575f}
.toc li{margin-bottom:7px}
.toc a{text-decoration:none;color:#2c4855}
.toc a:hover{color:var(--red)}
.layout{display:grid;grid-template-columns:270px 1fr;gap:28px;align-items:start}

/* misc */
.callout{padding:20px 22px;margin:0 0 20px;background:#fff;border:1px dashed #b9c9cf;border-radius:18px;color:#455c66;font-size:15px;line-height:1.6}
.callout b{color:var(--ink)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.tl{margin:0;padding:0;list-style:none}
.tl li{position:relative;padding:0 0 24px 26px;border-left:2px solid #dde5e8}
.tl li:last-child{border-left-color:transparent;padding-bottom:0}
.tl li:before{content:"";position:absolute;left:-7px;top:4px;width:12px;height:12px;background:#fff;border:3px solid var(--red);border-radius:50%}
.tl h4{margin:0 0 4px;font-size:18px;letter-spacing:-.02em}
.tl .when{display:block;margin-bottom:8px;color:#8698a0;font-size:13px;font-family:var(--mono)}
.tl p,.tl ul{margin:0 0 8px;color:#4c626d;font-size:15px;line-height:1.55}
.tl ul{padding-left:20px}
.footer{padding:34px 0 44px;color:#91a8b2;font-size:12px;line-height:1.8}
.footer a{color:#d5e1e5;text-decoration:none}
.agent-note{padding:16px 18px;margin:24px 0 0;color:#a9c1c9;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:16px;font-size:13px;line-height:1.6}
.agent-note code{color:#cdeef0}
details.raw{margin:12px 0 0}
details.raw summary{cursor:pointer;color:#0d6f9a;font-size:14px;font-weight:700}
details.raw .code{margin-top:10px}

/* gate */
.gate{position:fixed;inset:0;z-index:999;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 50% 0,rgba(57,198,202,.13),transparent 40%),#050f16}
.gate-box{width:min(100%,440px);padding:34px 30px;background:linear-gradient(160deg,#132734,#08161e);border:1px solid var(--line);border-radius:24px;box-shadow:0 40px 90px rgba(0,0,0,.5)}
.gate-box .mark{display:inline-grid;place-items:center;width:44px;height:44px;margin-bottom:20px;color:#fff;background:var(--red);border-radius:13px;font-weight:900}
.gate-box h2{margin:0 0 10px;font-size:26px;letter-spacing:-.04em}
.gate-box p{margin:0 0 22px;color:#9db1bb;font-size:14px;line-height:1.55}
.gate-box code{padding:2px 6px;background:rgba(255,255,255,.08);border-radius:5px;font-size:.9em}
.gate-box input{width:100%;height:52px;padding:0 16px;margin-bottom:12px;color:#fff;background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:13px;font:inherit;letter-spacing:.06em}
.gate-box input:focus{outline:none;border-color:var(--cyan)}
.gate-box button{width:100%;height:52px;color:#fff;background:var(--red);border:0;border-radius:13px;font:inherit;font-weight:800;cursor:pointer}
.gate-box button:hover{background:#b80e16}
.gate-err{margin:12px 0 0;color:#ff8a8f;font-size:13px;min-height:18px}
.hidden{display:none!important}

@media(max-width:1000px){.layout{grid-template-columns:1fr}.toc{position:static}}
@media(max-width:900px){.stats{grid-template-columns:repeat(2,1fr)}.ba,.two{grid-template-columns:1fr}}
@media(max-width:760px){
  .wrap,.wrap-n{width:min(calc(100% - 30px),var(--max))}
  .hero{padding:48px 0 58px}
  .section{padding:54px 15px 70px;border-radius:27px 27px 0 0}
  .card,.card.wide,.card.full{grid-column:span 12}
  .kv{grid-template-columns:1fr;gap:2px 0}
  .kv dt{margin-top:8px}
  .fix{padding:20px}
  .proj{padding:18px}
}
@media print{
  body{background:#fff;color:#000}
  .gate,.nav,.acts,.toc{display:none!important}
  .section{background:#fff;border-radius:0;padding:20px 0}
  .card,.proj{box-shadow:none;break-inside:avoid}
}