@font-face{font-family:'Poppins';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/poppins-400.woff) format('woff')}
@font-face{font-family:'Poppins';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/poppins-500.woff) format('woff')}
@font-face{font-family:'Poppins';font-style:normal;font-weight:600 800;font-display:swap;src:url(fonts/poppins-700.woff) format('woff')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400 500;font-display:swap;src:url(fonts/plexmono-400.woff) format('woff')}
/* Layout: one reading column (66ch) with a sticky contents rail on wide screens; home is a stacked set of bands.
   Palette and type follow the app: deep navy, the logo's cyan, Poppins; IBM Plex Mono for dates and labels. */
:root{
  --bg:#F3F6FA; --surface:#FFFFFF; --ink:#0B1E42; --ink-2:#3B4A66; --muted:#66748F; --line:#DCE3EE;
  --accent:#0E86AE; --accent-soft:#E2F4FA; --brand:#2FC1E8; --alert:#C8364D; --alert-soft:#FBE9EC; --mark:#FFE7A8; --mark-ink:#5A3D00;
  --f-display:'Poppins', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-body:'Poppins', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-mono:'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --r:14px; --bezel:#0B1E42; color-scheme:light;
}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){
  --bg:#08111F; --surface:#0F1C31; --ink:#E8EEF8; --ink-2:#C2CEE2; --muted:#8E9DB8; --line:#22324D;
  --accent:#5FD0F0; --accent-soft:#0F2A3A; --brand:#2FC1E8; --alert:#F07186; --alert-soft:#3A1520; --mark:#5A4410; --mark-ink:#FFE7A8; --bezel:#1E2C45; color-scheme:dark } }
:root[data-theme="dark"]{
  --bg:#08111F; --surface:#0F1C31; --ink:#E8EEF8; --ink-2:#C2CEE2; --muted:#8E9DB8; --line:#22324D;
  --accent:#5FD0F0; --accent-soft:#0F2A3A; --brand:#2FC1E8; --alert:#F07186; --alert-soft:#3A1520; --mark:#5A4410; --mark-ink:#FFE7A8; --bezel:#1E2C45; color-scheme:dark }
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.65 var(--f-body);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:3px}
a:focus-visible,summary:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:6px}
img{max-width:100%;height:auto}
.wrap{max-width:1080px;margin:0 auto;padding-left:max(16px, env(safe-area-inset-left, 0px));padding-right:max(16px, env(safe-area-inset-right, 0px))}
mark.ph{background:var(--mark);color:var(--mark-ink);padding:0 4px;border-radius:4px;font:600 .85em var(--f-mono)}
/* header */
.top{position:sticky;top:env(safe-area-inset-top, 0px);z-index:5;background:var(--ink);color:#fff}
:root[data-theme="dark"] .top{background:#050C18}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]) .top{background:#050C18} }
.top .wrap{display:flex;align-items:center;gap:16px;padding-block:10px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font:700 1.15rem var(--f-display);letter-spacing:-.01em}
.brand img{width:34px;height:34px;border-radius:9px}
.brand b{color:var(--brand);font-weight:700}
.nav{display:flex;gap:4px;flex-wrap:wrap;margin-left:auto}
.nav a{color:#C9D5EA;text-decoration:none;font:500 .82rem var(--f-display);padding:6px 10px;border-radius:999px}
.nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav a[aria-current="page"]{color:#06122A;background:var(--brand)}
/* policy pages */
.phead{padding-block:40px 8px}
.eyebrow{font:500 .74rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
h1{font:700 clamp(1.8rem, 4vw, 2.6rem)/1.15 var(--f-display);letter-spacing:-.02em;margin:.25em 0 .35em;text-wrap:balance}
.lead{font-size:1.06rem;color:var(--ink-2);max-width:62ch;margin:0}
.meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.chip{font:500 .74rem var(--f-mono);border:1px solid var(--line);background:var(--surface);color:var(--ink-2);border-radius:999px;padding:4px 10px}
.layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;padding-block:24px 64px}
@media (min-width:920px){ .layout{grid-template-columns:230px minmax(0,1fr)} }
.toc{font-size:.85rem}
@media (min-width:920px){ .toc{position:sticky;top:84px;align-self:start;max-height:calc(100vh - 110px);overflow:auto} }
.toc details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px}
.toc summary{cursor:pointer;font:600 .8rem var(--f-display);color:var(--ink)}
.toc ol{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:6px}
.toc a{color:var(--ink-2);text-decoration:none}
.toc a:hover{color:var(--accent);text-decoration:underline}
.doc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:clamp(20px, 4vw, 44px);min-width:0}
.doc > *{max-width:68ch}
.doc h2{font:600 1.18rem/1.3 var(--f-display);margin:1.9em 0 .5em;scroll-margin-top:90px;text-wrap:balance}
.doc h2:first-child{margin-top:0}
.doc h3{font:600 1rem var(--f-display);margin:1.4em 0 .4em}
.doc p,.doc li{color:var(--ink-2)}
.doc strong{color:var(--ink)}
.doc ul,.doc ol{padding-left:1.25em}
.doc li{margin:.3em 0}
.doc blockquote{margin:1em 0;padding:12px 16px;border-left:3px solid var(--brand);background:var(--accent-soft);border-radius:0 10px 10px 0}
.doc table{border-collapse:collapse;width:100%;font-size:.92rem}
.doc .tw{overflow-x:auto}
.doc th,.doc td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.backtop{margin-top:28px;font:500 .8rem var(--f-mono)}
/* home */
.hero{padding-block:56px 32px}
.hero .wrap{display:grid;gap:36px;align-items:center}
@media (min-width:860px){ .hero .wrap{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr)} }
.hero h1{font-size:clamp(2.3rem, 6vw, 3.6rem);margin:.1em 0 .25em}
.hero h1 b{color:var(--accent)}
.hero .lead{font-size:1.12rem}
.pill{display:inline-flex;align-items:center;gap:8px;font:500 .78rem var(--f-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:6px 12px}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.btn{display:inline-flex;align-items:center;gap:8px;font:600 .92rem var(--f-display);text-decoration:none;border-radius:12px;padding:12px 18px;border:1px solid var(--line);color:var(--ink);background:var(--surface)}
.btn.primary{background:var(--ink);color:#fff;border-color:var(--ink)}
:root[data-theme="dark"] .btn.primary{background:var(--brand);color:#06122A;border-color:var(--brand)}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]) .btn.primary{background:var(--brand);color:#06122A;border-color:var(--brand)} }
.logoart{justify-self:center;width:min(300px, 70vw);aspect-ratio:1;max-width:100%;border-radius:28%;box-shadow:0 30px 60px -28px rgba(11,30,66,.55)}
.trace{display:block;width:100%;height:56px;color:var(--brand)}
.band{padding-block:48px}
.band h2{font:700 clamp(1.4rem, 3vw, 1.9rem)/1.2 var(--f-display);letter-spacing:-.01em;margin:0 0 8px;text-wrap:balance}
.band .sub{color:var(--ink-2);margin:0 0 28px;max-width:60ch}
.features{display:grid;gap:14px;grid-template-columns:repeat(auto-fill, minmax(min(100%, 300px), 1fr))}
.feat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.feat h3{font:600 1rem var(--f-display);margin:0 0 6px;display:flex;align-items:center;gap:10px}
.feat h3 .dot{width:10px;height:10px;border-radius:3px;background:var(--brand);flex:none}
.feat.crit h3 .dot{background:var(--alert)}
.feat p{margin:0;color:var(--ink-2);font-size:.94rem}
.shots{display:grid;gap:22px;grid-template-columns:repeat(auto-fit, minmax(min(100%, 230px), 1fr))}
.shot{margin:0}
.shot img{display:block;width:100%;border-radius:26px;border:6px solid var(--bezel);background:var(--bezel);box-shadow:0 24px 50px -30px rgba(11,30,66,.6)}
.shot figcaption{margin-top:12px;font-size:.9rem;color:var(--ink-2)}
.shot figcaption b{display:block;color:var(--ink);font-family:var(--f-display)}
.promise{background:var(--ink);color:#fff;border-radius:22px;padding:clamp(22px, 4vw, 40px);display:grid;gap:18px}
:root[data-theme="dark"] .promise{background:var(--surface);border:1px solid var(--line)}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]) .promise{background:var(--surface);border:1px solid var(--line)} }
.promise h2{color:#fff;margin:0}
:root[data-theme="dark"] .promise h2{color:var(--ink)}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]) .promise h2{color:var(--ink)} }
.promise ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;grid-template-columns:repeat(auto-fit, minmax(min(100%, 220px), 1fr))}
.promise li{display:flex;gap:10px;color:#D4DEEE}
:root[data-theme="dark"] .promise li{color:var(--ink-2)}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]) .promise li{color:var(--ink-2)} }
.promise li::before{content:"";flex:none;width:18px;height:18px;margin-top:3px;border-radius:50%;background:var(--brand) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2306122A' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/12px no-repeat}
.promise a{color:var(--brand)}
.caution{border:1px solid var(--line);background:var(--surface);border-radius:var(--r);padding:18px 20px;display:grid;gap:6px}
.caution b{font-family:var(--f-display)}
.docs{display:grid;gap:10px;grid-template-columns:repeat(auto-fill, minmax(min(100%, 240px), 1fr))}
.docs a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--ink)}
.docs a span{display:block;font:600 .95rem var(--f-display)}
.docs a small{color:var(--muted);font-size:.84rem}
.docs a:hover{border-color:var(--accent)}
/* footer */
.foot{border-top:1px solid var(--line);padding-block:28px 40px;color:var(--muted);font-size:.85rem}
.foot .wrap{display:grid;gap:10px}
.foot nav{display:flex;flex-wrap:wrap;gap:6px 16px}
.foot a{color:var(--ink-2)}