:root{
  --ink:#0d0e10;--ink-2:#1c1e22;--ink-soft:#5b616b;--ink-mute:#8a9099;
  --paper:#fff;--paper-2:#f5f6f7;--line:#e6e8eb;
  --blue:#0a84ff;--blue-ink:#2563eb;--green:#34c759;
  --dark:#0a0b0d;--on-dark-soft:#b7bcc4;--on-dark-mute:#8b9098;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;background:var(--paper);color:var(--ink)}
body{font-family:Inter,-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",system-ui,sans-serif;font-size:17px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;font-feature-settings:"cv11","ss01","ss03";overflow-x:hidden}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
img{height:auto}
button{font:inherit;cursor:pointer}
.wrap{width:min(1200px,100% - 48px);margin-inline:auto}
.sr{position:absolute;left:-9999px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 22px;border-radius:999px;font-weight:600;font-size:15px;letter-spacing:-.005em;border:0;transition:transform .25s var(--ease),background .2s,box-shadow .25s var(--ease),color .2s;white-space:nowrap}
.btn:active{transform:scale(.98)}
.btn-white{background:#fff;color:var(--ink);box-shadow:0 1px 0 rgba(255,255,255,.3) inset,0 10px 30px -12px rgba(0,0,0,.6)}
.btn-white:hover{background:#f3f4f6;transform:translateY(-1px);box-shadow:0 14px 34px -12px rgba(0,0,0,.7)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#26282d;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;padding-left:6px}
.btn-ghost .play{width:32px;height:32px;border-radius:50%;border:1.5px solid rgba(255,255,255,.75);display:grid;place-items:center;transition:background .2s,border-color .2s}
.btn-ghost:hover .play{background:#fff;border-color:#fff}
.btn-ghost:hover .play svg{fill:var(--ink)}
.btn svg{flex:none}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* header */
.header{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .3s,backdrop-filter .3s,border-color .3s;border-bottom:1px solid transparent}
.header.scrolled{background:rgba(10,11,13,.72);backdrop-filter:saturate(160%) blur(16px);-webkit-backdrop-filter:saturate(160%) blur(16px);border-color:rgba(255,255,255,.06)}
.header .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;color:#fff}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:21px;letter-spacing:-.02em}
.brand img{width:30px;height:27px}
.nav{display:flex;align-items:center;gap:36px;font-size:15px;font-weight:500;color:rgba(255,255,255,.86)}
.nav a{display:inline-flex;align-items:center;gap:6px;transition:color .2s}
.nav a:hover{color:#fff}
.nav svg{opacity:.7}
.header-cta{display:flex;align-items:center;gap:22px;font-size:15px;font-weight:500}
.header-cta .login:hover{opacity:.8}
.menu-btn{display:none;background:none;border:0;color:#fff;width:44px;height:44px;margin-right:-10px}
.menu-btn svg{margin:auto}
.mobile-nav{position:fixed;inset:76px 0 auto 0;z-index:49;background:rgba(10,11,13,.96);backdrop-filter:blur(16px);padding:12px 24px 28px;display:none;border-bottom:1px solid rgba(255,255,255,.08)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:14px 0;color:#fff;font-size:17px;font-weight:500;border-bottom:1px solid rgba(255,255,255,.07)}
.mobile-nav .btn{margin-top:18px;width:100%;justify-content:center}
/* header on light pages */
.header.light:not(.scrolled) .wrap{color:var(--ink)}
.header.light:not(.scrolled) .nav{color:var(--ink-soft)}
.header.light:not(.scrolled) .nav a:hover{color:var(--ink)}
.header.light:not(.scrolled) .menu-btn{color:var(--ink)}
.header.light:not(.scrolled) .btn-white{background:var(--ink);color:#fff;box-shadow:none}
.header.light:not(.scrolled) .brand img{filter:invert(1)}

/* footer */
.footer{background:var(--dark);color:#fff;border-top:1px solid rgba(255,255,255,.08);padding:28px 0}
.footer .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.footer .left{display:flex;align-items:center;gap:18px}
.footer .brand{font-size:17px}
.footer .brand img{width:22px;height:20px}
.footer .sep{width:1px;height:18px;background:rgba(255,255,255,.18)}
.footer .tag{font-size:13.5px;color:var(--on-dark-mute)}
.footer nav{display:flex;gap:28px;font-size:13.5px;color:var(--on-dark-soft)}
.footer nav a:hover{color:#fff}

/* modal */
.modal{position:fixed;inset:0;z-index:100;display:none;place-items:center;padding:24px;background:rgba(10,11,13,.6);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.modal.open{display:grid}
.modal-card{position:relative;width:min(460px,100%);background:#fff;color:var(--ink);border-radius:22px;padding:34px 32px 30px;box-shadow:0 40px 100px -30px rgba(0,0,0,.6);animation:pop .35s var(--ease)}
@keyframes pop{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}
.modal-card h3{font-size:24px;letter-spacing:-.025em;margin:0 0 8px;font-weight:600}
.modal-card p{margin:0 0 22px;color:var(--ink-soft);font-size:15.5px}
.modal-card form{display:grid;gap:10px}
.modal-card input{height:50px;padding:0 16px;border-radius:12px;border:1px solid var(--line);font:inherit;font-size:16px;background:#fafafa;color:var(--ink)}
.modal-card input:focus{outline:none;border-color:var(--ink);background:#fff}
.modal-card .btn{justify-content:center;width:100%}
.modal-card .note{min-height:20px;font-size:14px;color:var(--ink-soft);margin:6px 0 0}
.modal-card .note.ok{color:#15803d}.modal-card .note.err{color:#dc2626}
.modal-close{position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;border:0;background:#f1f2f4;display:grid;place-items:center}
.modal-close:hover{background:#e6e8eb}

/* reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* legal pages */
.legal{padding:140px 0 96px}
.legal .wrap{max-width:760px}
.legal .eyebrow{display:block;font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-mute);margin-bottom:16px}
.legal h1{font-size:clamp(36px,4.5vw,52px);line-height:1.08;letter-spacing:-.03em;font-weight:600;margin:0 0 12px}
.legal .meta{color:var(--ink-mute);font-size:14.5px;margin:0 0 40px;padding-bottom:28px;border-bottom:1px solid var(--line)}
.legal h2{font-size:22px;letter-spacing:-.02em;font-weight:600;margin:44px 0 12px}
.legal h3{font-size:17px;font-weight:600;margin:24px 0 8px}
.legal p,.legal li{font-size:16.5px;line-height:1.65;color:#2d3138}
.legal ul{padding-left:22px}
.legal li{margin:6px 0}
.legal a{color:var(--blue-ink);text-decoration:underline;text-underline-offset:3px}
.legal .summary{background:var(--paper-2);border:1px solid var(--line);border-radius:16px;padding:20px 22px;margin:0 0 8px}
.legal .summary p{margin:0 0 8px;font-size:15.5px}
.legal .summary p:last-child{margin:0}
.legal .toc{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 8px;padding:0;list-style:none}
.legal .toc li{margin:0}
.legal .toc a{display:inline-block;padding:6px 12px;border-radius:999px;border:1px solid var(--line);font-size:13.5px;text-decoration:none;color:var(--ink-soft)}
.legal .toc a:hover{border-color:var(--ink);color:var(--ink)}

@media (max-width:860px){
  .nav,.header-cta .login,.header-cta .btn{display:none}
  .menu-btn{display:block}
  .footer .wrap{flex-direction:column;align-items:flex-start}
  .footer nav{gap:20px;flex-wrap:wrap}
  .legal{padding:116px 0 72px}
}
@media (max-width:520px){.wrap{width:min(1200px,100% - 32px)}}