/* Rosta landing: brand tokens match the app (~/rosta/index.html) */
:root{
  --bg:#EDF1EF;--surface:#FFFFFF;--soft:#F7F9F8;--ink:#13343B;--text:#13262B;--muted:#56676A;--line:#D8E0DD;--chip:#E2EAE7;
  --band:#13343B;--on-band:#F1F5F3;--band-muted:#A9BFBD;--band-line:#24494F;
  --accent:#E3A23B;--accent-ink:#2B1A02;
  --good:#2E7D4F;--good-bg:#E1F1E7;--amber-text:#8A5A0F;--amber-bg:#FBEFD9;--blue:#3D55B8;--blue-bg:#E6EBFA;
  --shadow:0 1px 2px rgba(10,16,18,.06),0 12px 32px -12px rgba(10,16,18,.2);
  --f-display:"Bricolage Grotesque",ui-sans-serif,system-ui,sans-serif;
  --f-body:"Figtree",ui-sans-serif,system-ui,-apple-system,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0D1618;--surface:#152124;--soft:#111C1F;--ink:#E5EDEB;--text:#D5E0DE;--muted:#93A4A5;--line:#253437;--chip:#1E2D30;
  --band:#0A1E22;--on-band:#EAF1EF;--band-muted:#93ADAB;--band-line:#1C3A40;
  --accent:#ECB352;--accent-ink:#241500;
  --good:#63C48C;--good-bg:#173226;--amber-text:#E6B05A;--amber-bg:#33270F;--blue:#9DB0F2;--blue-bg:#1D2546;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 14px 36px -14px rgba(0,0,0,.6);
  color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0D1618;--surface:#152124;--soft:#111C1F;--ink:#E5EDEB;--text:#D5E0DE;--muted:#93A4A5;--line:#253437;--chip:#1E2D30;
  --band:#0A1E22;--on-band:#EAF1EF;--band-muted:#93ADAB;--band-line:#1C3A40;
  --accent:#ECB352;--accent-ink:#241500;
  --good:#63C48C;--good-bg:#173226;--amber-text:#E6B05A;--amber-bg:#33270F;--blue:#9DB0F2;--blue-bg:#1D2546;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 14px 36px -14px rgba(0,0,0,.6);
  color-scheme:dark}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--f-body);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased}
img,svg,video{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{font-family:var(--f-display);color:var(--ink);margin:0;text-wrap:balance;letter-spacing:-.02em}
h1 i,h2 i,.mark i{font-style:normal;color:var(--accent)}
p{margin:0}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}

.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 max(16px,env(safe-area-inset-left)) 0 max(16px,env(safe-area-inset-right))}
@media (min-width:720px){.wrap{padding:0 32px}}

.skip{position:absolute;left:16px;top:-60px;background:var(--surface);color:var(--ink);padding:10px 14px;border-radius:10px;z-index:20;font-weight:600}
.skip:focus{top:12px}

/* Header */
.top{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 82%,transparent);-webkit-backdrop-filter:saturate(1.6) blur(16px);backdrop-filter:saturate(1.6) blur(16px);border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent)}
.top-in{display:flex;align-items:center;gap:16px;height:60px}
.mark{display:inline-flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);font-family:var(--f-display);font-weight:800;font-size:23px;letter-spacing:-.03em}
.mark img{border-radius:8px}
.mark-sm{font-size:20px}
.top-nav{display:none;margin-left:auto;gap:28px}
.top-nav a{text-decoration:none;color:var(--muted);font-weight:500;font-size:15px}
.top-nav a:hover{color:var(--ink)}
.top .btn{margin-left:auto}
@media (min-width:820px){.top-nav{display:flex}.top .btn{margin-left:8px}}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:999px;font-weight:600;font-size:16px;text-decoration:none;border:1px solid transparent;transition:transform .15s ease,background-color .15s ease,border-color .15s ease;white-space:nowrap}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:color-mix(in srgb,var(--accent) 88%,#000)}
.btn-ghost{background:transparent;color:var(--ink);border-color:color-mix(in srgb,var(--ink) 28%,transparent)}
.btn-ghost:hover{background:color-mix(in srgb,var(--ink) 6%,transparent)}
.btn-sm{min-height:38px;padding:0 16px;font-size:15px}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.cta-center{justify-content:center}

/* Hero */
.hero{padding:44px 0 64px;background:radial-gradient(120% 80% at 85% 10%,color-mix(in srgb,var(--surface) 90%,transparent),transparent 60%)}
.hero-in{display:grid;gap:48px;align-items:center}
@media (min-width:920px){.hero{padding:88px 0 104px}.hero-in{grid-template-columns:1.05fr .95fr;gap:56px}}
.tag{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink);background:var(--surface);border:1px solid var(--line);padding:6px 12px 6px 10px;border-radius:999px}
.tag-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none}
h1{font-weight:800;font-size:clamp(48px,13.5vw,96px);line-height:.95;letter-spacing:-.045em;margin-top:22px}
.lede{font-size:clamp(19px,2.2vw,23px);line-height:1.4;color:var(--text);margin-top:20px;max-width:30ch}
.fine{font-size:15px;color:var(--muted);margin-top:16px}

/* Hero card */
.hero-card{position:relative;margin:0;max-width:500px;width:100%;justify-self:center}
.card{background:var(--surface);border-radius:24px;padding:22px 20px 10px;box-shadow:var(--shadow)}
@media (min-width:480px){.card{padding:26px 26px 12px}}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:10px}
.eyebrow{font-size:12.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);font-weight:700}
.card-big{display:flex;align-items:baseline;gap:10px;margin-top:14px}
.big{font-family:var(--f-display);font-weight:800;font-size:58px;line-height:1;letter-spacing:-.04em;color:var(--ink);font-variant-numeric:tabular-nums}
.big small{font-size:26px;color:var(--muted);letter-spacing:-.02em}
.big-label{font-weight:600;color:var(--good)}
.bar{height:8px;border-radius:99px;background:var(--chip);margin:16px 0 6px;overflow:hidden}
.bar span{display:block;height:100%;width:100%;background:var(--good);border-radius:inherit}
.rows{list-style:none;margin:0;padding:0}
.rows li{display:flex;align-items:center;gap:12px;padding:13px 0;border-top:1px solid var(--line)}
.rows li:first-child{border-top:0}
.av{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-weight:700;font-size:13px;flex:none}
.av-1{background:#DCEBEA;color:#13343B}.av-2{background:var(--amber-bg);color:var(--amber-text)}.av-3{background:var(--blue-bg);color:var(--blue)}.av-4{background:var(--good-bg);color:var(--good)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .av-1{background:#1C3A40;color:#CFE3E1}}
.who{display:flex;flex-direction:column;min-width:0;flex:1}
.who b{font-weight:600;color:var(--ink);font-size:15.5px}
.who small{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chip{display:inline-flex;align-items:center;font-size:12.5px;font-weight:700;padding:4px 10px;border-radius:999px;white-space:nowrap;flex:none}
.chip-good{background:var(--good-bg);color:var(--good)}
.chip-amber{background:var(--amber-bg);color:var(--amber-text)}
.toast{position:absolute;left:50%;bottom:-20px;transform:translateX(-50%);display:inline-flex;align-items:center;gap:8px;background:var(--band);color:var(--on-band);font-weight:600;font-size:14px;padding:10px 16px 10px 10px;border-radius:999px;box-shadow:var(--shadow);white-space:nowrap}
.toast-ic{width:24px;height:24px;border-radius:50%;background:var(--good);color:#fff;display:grid;place-items:center}
@media (min-width:920px){.toast{left:auto;right:-14px;transform:none;bottom:-22px}}
@media (max-width:400px){.rows .chip{font-size:11.5px;padding:3px 8px}.who small{white-space:normal}}

/* Sections */
section{scroll-margin-top:72px}
.sec-head{margin-bottom:36px;max-width:640px}
.sec-head.center{text-align:center;margin-left:auto;margin-right:auto}
.sec-head h2{font-weight:800;font-size:clamp(32px,5.4vw,52px);line-height:1.02;margin-top:10px}

.film{padding:72px 0;background:var(--surface)}
.film-frame{border-radius:20px;overflow:hidden;box-shadow:var(--shadow);background:#EEF2F6;color:#13343B;max-width:960px;margin:0 auto;aspect-ratio:16/9}
.film-frame video{width:100%;height:100%;object-fit:cover}

.how{padding:80px 0}
.steps{list-style:none;margin:0;padding:0;display:grid;gap:16px}
@media (min-width:820px){.steps{grid-template-columns:repeat(3,1fr);gap:20px}}
.step{background:var(--surface);border-radius:20px;padding:26px 24px 28px;border:1px solid color-mix(in srgb,var(--line) 70%,transparent)}
.step-n{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--band);color:var(--on-band);font-family:var(--f-display);font-weight:800;font-size:18px}
.step h3,.feat h3{font-weight:800;font-size:22px;line-height:1.15;margin-top:18px}
.step p,.feat p{color:var(--muted);margin-top:8px;font-size:16px}

.features{padding:24px 0 88px}
.grid{display:grid;gap:16px}
@media (min-width:640px){.grid{grid-template-columns:repeat(2,1fr)}}

.feat{background:var(--surface);border-radius:20px;padding:24px 24px 28px;border:1px solid color-mix(in srgb,var(--line) 70%,transparent);display:grid;grid-template-columns:auto 1fr;column-gap:14px;align-items:center}
.feat h3{margin-top:0}
.feat p{grid-column:1/-1;margin-top:14px}
.ic{width:46px;height:46px;border-radius:14px;display:grid;place-items:center}
.ic svg,.fact-ic svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.ic-teal{background:#DCEBEA;color:#13343B}.ic-blue{background:var(--blue-bg);color:var(--blue)}.ic-amber{background:var(--amber-bg);color:var(--amber-text)}.ic-green{background:var(--good-bg);color:var(--good)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .ic-teal{background:#1C3A40;color:#CFE3E1}}
.devices{display:flex;align-items:center;gap:18px;margin-top:16px;background:var(--surface);border-radius:20px;padding:22px 24px;border:1px solid color-mix(in srgb,var(--line) 70%,transparent)}
.devices p{color:var(--muted);font-size:16px}
.devices b{color:var(--ink);font-weight:600}
.dev-ic{color:var(--ink);flex:none}
.dev-ic svg{width:56px;height:28px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}

.security{background:var(--band);color:var(--on-band);padding:84px 0}
.security h2,.security h3{color:var(--on-band)}
.eyebrow-band{color:var(--band-muted)}
.facts{list-style:none;margin:0;padding:0;display:grid;gap:0}
@media (min-width:820px){.facts{grid-template-columns:repeat(2,1fr);column-gap:48px}}
.facts li{display:flex;gap:16px;padding:22px 0;border-top:1px solid var(--band-line)}
.fact-ic{width:44px;height:44px;border-radius:13px;background:color-mix(in srgb,var(--on-band) 9%,transparent);color:var(--accent);display:grid;place-items:center;flex:none}
.facts h3{font-weight:800;font-size:19px;line-height:1.2}
.facts p{color:var(--band-muted);font-size:16px;margin-top:4px}
.note{margin-top:28px;padding:18px 20px;border-radius:16px;background:color-mix(in srgb,var(--accent) 14%,transparent);border:1px solid color-mix(in srgb,var(--accent) 40%,transparent);font-size:16px;color:var(--on-band)}
.note b{font-weight:700}

.close{padding:88px 0;text-align:center}
.close-in h2{font-weight:800;font-size:clamp(40px,8vw,72px);line-height:1;letter-spacing:-.04em}
.close-in p{color:var(--muted);margin-top:14px;font-size:18px}

.foot{border-top:1px solid var(--line);padding:32px 0 calc(32px + env(safe-area-inset-bottom))}
.foot-in{display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px}
.foot-in > p{color:var(--muted);font-size:15px}
.foot-meta{display:flex;align-items:center;gap:12px;margin-left:auto;color:var(--muted);font-size:15px}
.pill-test{font-size:12.5px;font-weight:700;letter-spacing:.04em;padding:4px 10px;border-radius:999px;background:var(--amber-bg);color:var(--amber-text)}
@media (max-width:640px){.foot-meta{margin-left:0;width:100%}}