:root{
  --bg:#0E1726;--surface:#172236;--surface2:#1F2D45;
  --accent:#2DD4A0;--accent2:#FF6B57;--ok:#2DD4A0;--warn:#F5B422;
  --text:#F5F7FA;--muted:#A3ADBD;--hint:#6B7280;--border:rgba(255,255,255,.09);
  --radius:14px;--max:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}
.skip:focus{left:16px;top:16px;background:var(--accent);color:#000;padding:8px 12px;border-radius:8px;z-index:9}

header.top{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text);letter-spacing:-.01em}
.brand img,.brand svg{width:32px;height:32px;border-radius:8px}
nav a{color:var(--muted);margin-left:22px;font-size:15px}
nav a:hover{color:var(--text);text-decoration:none}
nav a.btn{color:#0b0d12}
@media(max-width:640px){nav a:not(.btn){display:none}nav a.btn{padding:10px 14px;font-size:14px}}

.btn{white-space:nowrap;display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:#0b0d12;font-weight:600;padding:12px 20px;border-radius:999px;border:0;cursor:pointer;font-size:15px}
.btn:hover{filter:brightness(1.08);text-decoration:none}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--border)}
.btn.ghost:hover{border-color:var(--muted)}
.note{font-size:13px;color:var(--hint);margin-top:10px}

.hero{padding:72px 0 40px}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(34px,5vw,56px);line-height:1.05;letter-spacing:-.03em;margin:0 0 18px}
.hero p.lede{font-size:19px;color:var(--muted);margin:0 0 28px;max-width:56ch}
.hero em{font-style:normal;color:var(--text)}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
@media(max-width:820px){.hero .wrap{grid-template-columns:1fr}.hero{padding-top:44px}}

/* phone mockup */
.phone{width:280px;margin:0 auto;aspect-ratio:9/18.5;border-radius:36px;background:#000;border:6px solid #2a2f3a;box-shadow:0 30px 60px rgba(0,0,0,.5),0 0 0 1px rgba(255,255,255,.06);position:relative;overflow:hidden}
.phone .screen{position:absolute;inset:0;background:radial-gradient(120% 80% at 50% 0%,color-mix(in srgb,var(--accent) 30%,var(--bg)),var(--bg) 60%);padding:52px 14px 14px}
.phone .notch{position:absolute;top:10px;left:50%;transform:translateX(-50%);width:80px;height:20px;border-radius:10px;background:#000}
.phone .clock{position:absolute;top:14px;left:20px;font-size:12px;color:#fff;font-weight:600}
.notif{background:rgba(28,31,38,.92);border:1px solid var(--border);border-radius:16px;padding:12px 14px;box-shadow:0 10px 30px rgba(0,0,0,.4)}
.notif .app{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--muted);margin-bottom:6px}
.notif .app i{width:12px;height:12px;border-radius:3px;background:var(--accent);display:inline-block}
.notif b{display:block;font-size:14px;margin-bottom:3px}
.notif span{font-size:13px;color:var(--muted)}
.chip{display:inline-block;margin-top:10px;font-size:11px;padding:4px 9px;border-radius:999px;background:color-mix(in srgb,var(--warn) 22%,transparent);color:var(--warn);border:1px solid color-mix(in srgb,var(--warn) 40%,transparent);font-weight:600}
.phone .map{position:absolute;left:14px;right:14px;bottom:14px;top:190px;border-radius:14px;background:
  linear-gradient(transparent 48%,rgba(255,255,255,.05) 49%,rgba(255,255,255,.05) 51%,transparent 52%) 0 0/100% 40px,
  linear-gradient(90deg,transparent 48%,rgba(255,255,255,.05) 49%,rgba(255,255,255,.05) 51%,transparent 52%) 0 0/40px 100%,
  var(--surface)}
.phone .ring{position:absolute;left:50%;top:55%;width:120px;height:120px;border-radius:50%;border:2px solid color-mix(in srgb,var(--accent) 60%,transparent);transform:translate(-50%,-50%);background:color-mix(in srgb,var(--accent) 12%,transparent)}
.phone .ring:after{content:"";position:absolute;left:50%;top:50%;width:14px;height:14px;border-radius:50%;background:var(--ok);transform:translate(-50%,-50%);box-shadow:0 0 0 4px color-mix(in srgb,var(--ok) 30%,transparent)}

section{padding:56px 0}
section h2{font-size:clamp(26px,3.2vw,34px);letter-spacing:-.02em;margin:0 0 10px}
section p.intro{color:var(--muted);max-width:70ch;margin:0 0 30px;font-size:17px}
.grid{display:grid;gap:16px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
@media(max-width:820px){.grid.c3,.grid.c2{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px}
.card h3{margin:0 0 8px;font-size:17px;letter-spacing:-.01em}
.card p{margin:0;color:var(--muted);font-size:15px}
.step{position:relative;padding-top:26px}
.step .n{position:absolute;top:16px;left:22px;width:28px;height:28px;border-radius:50%;background:var(--accent);color:#0b0d12;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px}
.step h3{margin-top:22px}
.band{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.band .card{background:var(--surface2)}

details{border-top:1px solid var(--border);padding:16px 0}
details:last-of-type{border-bottom:1px solid var(--border)}
summary{cursor:pointer;font-weight:600;font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";color:var(--accent);font-weight:400;font-size:22px;line-height:1}
details[open] summary:after{content:"–"}
details p{color:var(--muted);margin:10px 0 0;max-width:70ch}

.callout{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 22%,var(--surface)),var(--surface));border:1px solid var(--border);border-radius:var(--radius);padding:32px}
.callout h2{margin:0 0 6px}
.callout p{margin:0;color:var(--muted)}
@media(max-width:640px){.callout{grid-template-columns:1fr}}

footer{border-top:1px solid var(--border);padding:36px 0;color:var(--hint);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;align-items:center}
footer a{color:var(--muted)}
footer .links a{margin-right:18px}
footer .co{display:flex;align-items:center;gap:8px}
.bh{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:6px;background:var(--text);color:var(--bg);font-weight:800;font-size:10px;letter-spacing:-.02em}

/* text pages */
.page{padding:56px 0 72px}
.page .wrap{max-width:760px}
.page h1{font-size:clamp(30px,4vw,42px);letter-spacing:-.02em;margin:0 0 6px}
.page .updated{color:var(--hint);margin:0 0 32px}
.page h2{font-size:20px;margin:30px 0 8px}
.page p,.page li{color:var(--muted)}
.page p strong{color:var(--text)}

form{display:grid;gap:16px;margin-top:24px}
label{display:grid;gap:6px;font-weight:600;font-size:14px}
input,select,textarea{width:100%;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:12px 14px;font:inherit}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
textarea{min-height:150px;resize:vertical}
.hp{display:none}