:root{--bg:#050608;--panel:rgba(28,32,40,.55);--line:rgba(255,255,255,.10);--text:#EDF1F7;--muted:#9AA3B2;--ice:#8CE0FF;--ice2:#C4EFFF}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Geist',system-ui,sans-serif;font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:-20% -10% auto -10%;height:70vh;background:radial-gradient(60% 60% at 50% 0%,rgba(140,224,255,.16),rgba(140,224,255,0) 70%);pointer-events:none;z-index:0}
a{color:var(--ice);text-decoration:none}
a:hover{color:var(--ice2)}
a:focus-visible,.btn:focus-visible{outline:2px solid var(--ice);outline-offset:3px;border-radius:8px}
.wrap{position:relative;z-index:1;max-width:760px;margin:0 auto;padding:0 20px}
header.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:600;letter-spacing:-.01em}
.brand img{flex:none;border-radius:7px;display:block}
.appicon{display:block;border-radius:22px;margin:0 0 26px;box-shadow:0 18px 50px rgba(108,203,245,.22)}
nav.links{display:flex;gap:20px;font-size:15px}
nav.links a{color:var(--muted)}
nav.links a:hover,nav.links a[aria-current=page]{color:var(--text)}
.eyebrow{font-family:'Geist Mono',ui-monospace,monospace;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--ice);margin:0 0 14px}
h1{font-size:clamp(34px,8vw,60px);line-height:1.12;letter-spacing:-.03em;font-weight:600;margin:0 0 18px;padding-bottom:.08em;overflow-wrap:break-word}
h2{font-size:22px;line-height:1.3;letter-spacing:-.01em;font-weight:600;margin:40px 0 10px}
p{margin:0 0 16px;color:#C9D0DB}
.lead{font-size:19px;color:#C9D0DB;max-width:58ch}
.hero{padding:56px 0 28px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin:28px 0 8px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:inset 0 1px 0 rgba(255,255,255,.08);-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px)}
.card h3{margin:0 0 6px;font-size:17px;font-weight:600;line-height:1.35}
.card p{margin:0;font-size:15.5px;line-height:1.55;color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 22px;border-radius:999px;font-weight:600;color:#04121A;background:linear-gradient(180deg,#A8E8FF,#6CCBF5);box-shadow:0 8px 30px rgba(108,203,245,.25);transition:transform .2s ease,box-shadow .2s ease}
.btn:hover{color:#04121A;transform:translateY(-1px);box-shadow:0 12px 36px rgba(108,203,245,.35)}
.note{font-family:'Geist Mono',ui-monospace,monospace;font-size:12.5px;letter-spacing:.06em;color:var(--muted);margin-top:14px}
main.doc{padding:36px 0 20px}
main.doc ul{margin:0 0 16px;padding-left:20px;color:#C9D0DB}
main.doc li{margin:0 0 8px}
main.doc strong{color:var(--text);font-weight:600}
details{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:0 18px;margin:0 0 10px}
summary{cursor:pointer;padding:16px 0;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--ice);font-size:22px;line-height:1;flex:none}
details[open] summary::after{content:"×"}
details p{padding:0 0 16px;margin:0;color:var(--muted)}
footer{border-top:1px solid var(--line);margin-top:56px;padding:26px 0 44px;font-size:14px;color:var(--muted);display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between}
footer a{color:var(--muted)}footer a:hover{color:var(--text)}
@media (prefers-reduced-motion:reduce){.btn{transition:none}.btn:hover{transform:none}}