/* =============================================================
   CoreOS — by ZenTracker.in · Marketing + legal site
   Shared stylesheet for index.html, privacy.html, terms.html.
   Design tokens, Lexend type and the accent are lifted straight
   from the app (app/styles.css) so the site and product feel like
   one thing. Dark mode follows the OS by default and can be
   overridden with the header toggle (writes data-theme on <html>).
   ============================================================= */

/* Lexend — the app's typeface. Served from Google Fonts with a full
   system fallback so text is readable before the font lands. */
@import url('https://fonts.googleapis.com/css2?family=Lexend:wght@300;400;500;600;700&display=swap');

:root{
  --bg:#ffffff; --bg2:#f7f7f5; --elev:#ffffff; --hover:#f1f1ef; --active:#eae9e6;
  --ink:#37352f; --ink2:#787670; --ink3:#9f9e9a;
  --border:#e9e9e7; --border2:#d9d8d5;
  --accent:#2383e2; --accent-ink:#ffffff; --accent-soft:#e8f1fb;
  --red:#d44c47; --red-soft:#fbecec;
  --amber:#b7791f; --amber-soft:#faf3dd;
  --green:#448361; --green-soft:#e8f0eb;
  --purple:#9065b0;
  --shadow:0 14px 36px rgba(15,15,15,.14), 0 2px 8px rgba(15,15,15,.06);
  --shadow-lg:0 30px 60px rgba(15,15,15,.16), 0 8px 24px rgba(15,15,15,.08);
  --r:12px;
  --maxw:1080px;
  --nav-h:60px;
  --font:'Lexend',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-sub:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}
/* Manual dark + OS dark share one token block */
:root[data-theme="dark"]{
  --bg:#191919; --bg2:#202020; --elev:#262626; --hover:#272727; --active:#303030;
  --ink:#d6d6d3; --ink2:#9d9c98; --ink3:#6f6e6a;
  --border:#2c2c2c; --border2:#3d3d3d;
  --accent:#5b9fd6; --accent-ink:#10222f; --accent-soft:#1d2c3a;
  --red:#e06663; --red-soft:#3a2423;
  --amber:#d3a04d; --amber-soft:#38301c;
  --green:#61a184; --green-soft:#1e2f27;
  --purple:#a985c9;
  --shadow:0 16px 40px rgba(0,0,0,.55);
  --shadow-lg:0 34px 70px rgba(0,0,0,.62);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#191919; --bg2:#202020; --elev:#262626; --hover:#272727; --active:#303030;
    --ink:#d6d6d3; --ink2:#9d9c98; --ink3:#6f6e6a;
    --border:#2c2c2c; --border2:#3d3d3d;
    --accent:#5b9fd6; --accent-ink:#10222f; --accent-soft:#1d2c3a;
    --red:#e06663; --red-soft:#3a2423;
    --amber:#d3a04d; --amber-soft:#38301c;
    --green:#61a184; --green-soft:#1e2f27;
    --purple:#a985c9;
    --shadow:0 16px 40px rgba(0,0,0,.55);
    --shadow-lg:0 34px 70px rgba(0,0,0,.62);
  }
}

/* ---------- Base ---------- */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font:16px/1.6 var(--font);
  background:var(--bg); color:var(--ink);
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
svg{display:block;flex-shrink:0}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;-webkit-tap-highlight-color:transparent}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:var(--accent-soft);color:var(--ink)}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ---------- Brand mark ---------- */
.mark{
  background:var(--accent);color:var(--accent-ink);
  display:grid;place-items:center;flex-shrink:0;border-radius:8px;
}
.mark svg{fill:currentColor}
.brand{display:inline-flex;align-items:center;gap:10px;min-width:0}
.brand .mark{width:30px;height:30px}
.brand .mark svg{width:16px;height:16px}
.brandwrap{display:inline-flex;flex-direction:column;line-height:1.05;gap:2px}
.brandname{font-family:var(--font);font-weight:600;font-size:16px;letter-spacing:.01em}
.brandsub{font-size:9.5px;font-weight:500;color:var(--ink3);letter-spacing:.02em;font-family:var(--font-sub)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;border-radius:10px;font-weight:550;font-size:15px;
  border:1px solid var(--border2);color:var(--ink);background:var(--elev);
  transition:background .15s,border-color .15s,transform .05s,filter .15s;
  white-space:nowrap;
}
.btn:hover{background:var(--hover)}
.btn:active{transform:translateY(1px)}
.btn svg{width:16px;height:16px}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.06);background:var(--accent)}
.btn.ghost{border-color:transparent;background:transparent;color:var(--ink2)}
.btn.ghost:hover{background:var(--hover);color:var(--ink)}
.btn.lg{padding:14px 24px;font-size:16.5px;border-radius:12px}
.btn.sm{padding:8px 13px;font-size:14px}

/* ---------- Nav ---------- */
header.nav{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter:saturate(160%) blur(12px);
  -webkit-backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--border);
}
.nav-in{height:var(--nav-h);display:flex;align-items:center;gap:16px}
.nav-links{margin-left:auto;display:flex;align-items:center;gap:6px}
.nav-links a.navlink{
  padding:8px 12px;border-radius:8px;font-size:14.5px;color:var(--ink2);font-weight:500;
  transition:background .15s,color .15s;
}
.nav-links a.navlink:hover{background:var(--hover);color:var(--ink)}
.nav-links .hide-sm{display:none}
.iconbtn{
  width:38px;height:38px;display:grid;place-items:center;border-radius:9px;color:var(--ink2);
  border:1px solid transparent;transition:background .15s,color .15s;
}
.iconbtn:hover{background:var(--hover);color:var(--ink)}
.iconbtn svg{width:18px;height:18px}
.theme-moon{display:block}.theme-sun{display:none}
:root[data-theme="dark"] .theme-moon{display:none}
:root[data-theme="dark"] .theme-sun{display:block}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .theme-moon{display:none}
  :root:not([data-theme="light"]) .theme-sun{display:block}
}
@media(min-width:640px){.nav-links .hide-sm{display:inline-flex}}

/* ---------- Hero ---------- */
.hero{position:relative;padding:76px 0 40px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-40% 0 auto 0;height:640px;z-index:-1;
  background:
    radial-gradient(720px 340px at 22% -4%, color-mix(in srgb,var(--accent) 22%, transparent), transparent 70%),
    radial-gradient(560px 320px at 90% 4%, color-mix(in srgb,var(--purple) 16%, transparent), transparent 72%);
  opacity:.9;pointer-events:none;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;
  padding:6px 13px;border-radius:999px;font-size:13px;font-weight:550;
  color:var(--ink2);background:var(--bg2);border:1px solid var(--border);
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--green)}
h1.hero-h{
  font-size:clamp(38px,6.4vw,68px);line-height:1.04;letter-spacing:-.022em;
  font-weight:600;max-width:15ch;
}
h1.hero-h .grad{
  background:linear-gradient(105deg,var(--accent),var(--purple));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:22px;font-size:clamp(17px,2.1vw,21px);line-height:1.55;
  color:var(--ink2);max-width:56ch;font-weight:400;
}
.hero-cta{margin-top:32px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-note{margin-top:18px;font-size:13.5px;color:var(--ink3);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.hero-note .sep{width:3px;height:3px;border-radius:50%;background:var(--ink3);display:inline-block}

/* ---------- App mockup (CSS-only product shot) ---------- */
.shot{
  margin-top:56px;position:relative;border-radius:16px;overflow:hidden;
  border:1px solid var(--border);background:var(--elev);box-shadow:var(--shadow-lg);
}
.shot-bar{
  display:flex;align-items:center;gap:7px;padding:11px 14px;
  border-bottom:1px solid var(--border);background:var(--bg2);
}
.shot-bar .tl{width:11px;height:11px;border-radius:50%;background:var(--border2)}
.shot-bar .addr{
  margin-left:10px;font-size:12px;color:var(--ink3);font-family:var(--font-sub);
  background:var(--bg);border:1px solid var(--border);border-radius:7px;padding:4px 12px;
}
.shot-body{display:flex;min-height:360px}
.shot-side{
  width:210px;flex-shrink:0;border-right:1px solid var(--border);background:var(--bg2);
  padding:14px 10px;display:flex;flex-direction:column;gap:3px;
}
.shot-side .s-brand{display:flex;align-items:center;gap:8px;padding:4px 8px 14px}
.shot-side .s-brand .mark{width:24px;height:24px;border-radius:7px}
.shot-side .s-brand .mark svg{width:13px;height:13px}
.s-item{
  display:flex;align-items:center;gap:10px;padding:8px 11px;border-radius:8px;
  font-size:13.5px;color:var(--ink2);font-weight:500;
}
.s-item .sq{width:15px;height:15px;border-radius:4px;background:var(--border2);flex-shrink:0}
.s-item.on{background:var(--accent-soft);color:var(--accent)}
.s-item.on .sq{background:var(--accent)}
.s-label{font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink3);padding:12px 11px 4px}
.s-dot{width:10px;height:10px;border-radius:3px;flex-shrink:0}
.shot-main{flex:1;padding:20px 22px;min-width:0;overflow:hidden}
.sm-h{font-size:17px;font-weight:600;letter-spacing:-.01em;margin-bottom:3px}
.sm-sub{font-size:12.5px;color:var(--ink3);margin-bottom:16px}
.sm-seg{display:inline-flex;background:var(--bg2);border:1px solid var(--border);border-radius:9px;padding:2px;gap:2px;margin-bottom:16px}
.sm-seg span{padding:5px 12px;font-size:12px;border-radius:7px;color:var(--ink2);font-weight:500}
.sm-seg span.on{background:var(--elev);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08)}
.sm-row{
  display:flex;align-items:flex-start;gap:11px;padding:11px 12px;border-radius:9px;
  border:1px solid transparent;
}
.sm-row+.sm-row{border-top:1px solid var(--border)}
.sm-check{width:19px;height:19px;border-radius:6px;border:1.6px solid var(--border2);flex-shrink:0;margin-top:1px;display:grid;place-items:center}
.sm-check.on{background:var(--accent);border-color:var(--accent)}
.sm-check.on::after{content:"";width:9px;height:5px;border-left:2px solid var(--accent-ink);border-bottom:2px solid var(--accent-ink);transform:rotate(-45deg) translateY(-1px)}
.sm-body{flex:1;min-width:0}
.sm-title{font-size:14px;font-weight:500}
.sm-row.done .sm-title{color:var(--ink3);text-decoration:line-through}
.sm-meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:7px}
.chip{
  display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:500;
  padding:3px 9px;border-radius:999px;border:1px solid var(--border);color:var(--ink2);background:var(--elev);
}
.chip .cd{width:7px;height:7px;border-radius:50%}
.chip.blue{background:var(--accent-soft);color:var(--accent);border-color:transparent}
.chip.green{background:var(--green-soft);color:var(--green);border-color:transparent}
.chip.red{background:var(--red-soft);color:var(--red);border-color:transparent}
.chip.amber{background:var(--amber-soft);color:var(--amber);border-color:transparent}
@media(max-width:720px){
  .shot-side{display:none}
  .shot-body{min-height:auto}
}

/* ---------- Section scaffolding ---------- */
section{padding:64px 0}
.sec-head{max-width:640px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;
  color:var(--accent);margin-bottom:12px;
}
h2.sec-h{font-size:clamp(27px,3.6vw,40px);line-height:1.12;letter-spacing:-.02em;font-weight:600}
.sec-lead{margin-top:16px;font-size:17.5px;line-height:1.6;color:var(--ink2)}

/* ---------- Feature grid ---------- */
.fgrid{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:640px){.fgrid{grid-template-columns:1fr 1fr}}
@media(min-width:940px){.fgrid{grid-template-columns:1fr 1fr 1fr}}
.fcard{
  padding:24px;border:1px solid var(--border);border-radius:var(--r);background:var(--elev);
  transition:border-color .18s,transform .18s,box-shadow .18s;
}
.fcard:hover{border-color:var(--border2);transform:translateY(-3px);box-shadow:var(--shadow)}
.fic{
  width:42px;height:42px;border-radius:11px;display:grid;place-items:center;margin-bottom:16px;
  background:var(--accent-soft);color:var(--accent);
}
.fic svg{width:20px;height:20px;fill:currentColor}
.fic.g{background:var(--green-soft);color:var(--green)}
.fic.a{background:var(--amber-soft);color:var(--amber)}
.fic.p{background:color-mix(in srgb,var(--purple) 16%,transparent);color:var(--purple)}
.fic.r{background:var(--red-soft);color:var(--red)}
.fcard h3{font-size:17.5px;font-weight:600;letter-spacing:-.01em;margin-bottom:8px}
.fcard p{font-size:14.5px;line-height:1.6;color:var(--ink2)}

/* ---------- Split / alt sections ---------- */
.band{background:var(--bg2);border-block:1px solid var(--border)}
.split{display:grid;gap:40px;align-items:center;grid-template-columns:1fr}
@media(min-width:900px){.split{grid-template-columns:1.05fr .95fr;gap:60px}
  .split.rev .split-media{order:-1}}
.split-copy h2{font-size:clamp(24px,3vw,34px);line-height:1.15;letter-spacing:-.02em;font-weight:600}
.split-copy p{margin-top:16px;font-size:16.5px;line-height:1.6;color:var(--ink2)}
.checklist{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.checklist li{display:flex;gap:11px;align-items:flex-start;list-style:none;font-size:15px;color:var(--ink)}
.checklist .tick{
  width:22px;height:22px;border-radius:7px;flex-shrink:0;background:var(--green-soft);color:var(--green);
  display:grid;place-items:center;margin-top:1px;
}
.checklist .tick svg{width:13px;height:13px;fill:currentColor}
.checklist b{font-weight:600}
.checklist span{color:var(--ink2)}

/* Data / privacy panel */
.panel{
  border:1px solid var(--border);border-radius:16px;background:var(--elev);padding:30px;
  box-shadow:var(--shadow);
}
.panel .plock{
  width:46px;height:46px;border-radius:13px;background:var(--green-soft);color:var(--green);
  display:grid;place-items:center;margin-bottom:18px;
}
.panel .plock svg{width:23px;height:23px;fill:currentColor}
.pmini{display:flex;gap:12px;padding:14px 0;border-top:1px solid var(--border)}
.pmini:first-of-type{border-top:0}
.pmini .n{width:26px;height:26px;border-radius:8px;background:var(--bg2);color:var(--ink2);display:grid;place-items:center;font-size:13px;font-weight:600;flex-shrink:0;font-family:var(--font-sub)}
.pmini h4{font-size:14.5px;font-weight:600;margin-bottom:2px}
.pmini p{font-size:13.5px;color:var(--ink2);line-height:1.55}

/* ---------- Roadmap ---------- */
.road{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:800px){.road{grid-template-columns:1fr 1fr}}
.rcard{
  position:relative;padding:26px;border:1px solid var(--border);border-radius:var(--r);
  background:var(--elev);overflow:hidden;
}
.rcard::after{
  content:"";position:absolute;inset:0 0 auto 0;height:3px;
  background:linear-gradient(90deg,var(--accent),var(--purple));opacity:.85;
}
.rtag{
  display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:600;letter-spacing:.03em;
  text-transform:uppercase;color:var(--amber);background:var(--amber-soft);border-radius:999px;
  padding:4px 11px;margin-bottom:16px;
}
.rtag.live{color:var(--green);background:var(--green-soft)}   /* v4.3: shipped, not roadmap */
.rcard .fic{margin-bottom:16px}
.rcard h3{font-size:19px;font-weight:600;letter-spacing:-.01em;margin-bottom:9px}
.rcard p{font-size:14.5px;line-height:1.6;color:var(--ink2)}
.rcard .prov{margin-top:14px;font-size:13px;color:var(--ink3);display:flex;align-items:center;gap:7px}
.rcard .prov b{color:var(--ink2);font-weight:600}

/* ---------- CTA ---------- */
.cta{
  text-align:center;border:1px solid var(--border);border-radius:20px;padding:56px 28px;
  background:
    radial-gradient(560px 260px at 50% -10%, color-mix(in srgb,var(--accent) 16%,transparent), transparent 70%),
    var(--elev);
  box-shadow:var(--shadow);
}
.cta h2{font-size:clamp(26px,3.6vw,38px);letter-spacing:-.02em;font-weight:600;line-height:1.1}
.cta p{margin:16px auto 28px;font-size:17px;color:var(--ink2);max-width:46ch}
.cta .hero-cta{justify-content:center}

/* ---------- Footer ---------- */
footer.site{border-top:1px solid var(--border);padding:44px 0 40px;background:var(--bg2)}
.foot-top{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:flex-start}
.foot-brand{max-width:300px}
.foot-brand p{margin-top:12px;font-size:13.5px;color:var(--ink3);line-height:1.6}
.foot-cols{display:flex;flex-wrap:wrap;gap:44px}
.foot-col h5{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink3);margin-bottom:12px}
.foot-col a{display:block;font-size:14px;color:var(--ink2);padding:5px 0;transition:color .15s}
.foot-col a:hover{color:var(--ink)}
.foot-bot{
  margin-top:36px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--ink3);
}
.foot-bot a{color:var(--ink3)}
.foot-bot a:hover{color:var(--ink2)}

/* ---------- Legal documents ---------- */
.legal-hero{padding:52px 0 28px;border-bottom:1px solid var(--border)}
.legal-hero h1{font-size:clamp(30px,5vw,44px);letter-spacing:-.02em;font-weight:600}
.legal-hero .meta{margin-top:14px;font-size:14px;color:var(--ink3);display:flex;flex-wrap:wrap;gap:6px 16px}
.legal-hero .meta b{color:var(--ink2);font-weight:600}
.legal{max-width:760px;margin:0 auto;padding:40px 22px 96px}
.legal .toc{
  background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:18px 22px;margin-bottom:40px;
}
.legal .toc h2{font-size:13px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--ink3);margin-bottom:12px}
.legal .toc ol{margin:0;padding-left:20px;columns:2;column-gap:28px}
.legal .toc li{margin-bottom:7px;font-size:14px}
.legal .toc a{color:var(--ink2)}
.legal .toc a:hover{color:var(--accent)}
.legal h2.doc-h{font-size:21px;font-weight:600;letter-spacing:-.01em;margin:44px 0 14px;scroll-margin-top:80px}
.legal h2.doc-h .num{color:var(--ink3);font-weight:600;margin-right:10px}
.legal h3.doc-sh{font-size:16.5px;font-weight:600;margin:26px 0 10px}
.legal p{font-size:15.5px;line-height:1.72;color:var(--ink);margin:12px 0}
.legal p.lead{font-size:17px;color:var(--ink2)}
.legal ul,.legal ol.body{margin:12px 0 12px 4px;padding-left:22px}
.legal li{font-size:15.5px;line-height:1.7;color:var(--ink);margin:8px 0}
.legal a.inline{color:var(--accent);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
.legal a.inline:hover{filter:brightness(1.1)}
.legal strong{font-weight:600}
.legal .callout{
  border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:10px;
  background:var(--bg2);padding:16px 20px;margin:22px 0;
}
.legal .callout.limited{border-left-color:var(--green)}
/* Marks a section describing a feature that is planned but not yet live. */
.pillsoft{display:inline-block;margin-left:8px;padding:2px 8px;border-radius:999px;vertical-align:2px;
  background:var(--amber-soft,#faf3dd);color:var(--amber,#b7791f);
  font-size:10.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase}
.legal .callout h3{margin-top:0;font-size:15px}
.legal .callout p{font-size:14.5px;color:var(--ink2);margin:8px 0 0}
.legal .backtop{display:inline-block;margin-top:8px;font-size:13px;color:var(--ink3)}
.legal .scopes{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px}
.legal .scopes th,.legal .scopes td{text-align:left;padding:11px 12px;border:1px solid var(--border);vertical-align:top}
.legal .scopes th{background:var(--bg2);font-weight:600;font-size:12.5px;letter-spacing:.02em;color:var(--ink2)}
.legal .scopes code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;background:var(--bg2);border:1px solid var(--border);border-radius:5px;padding:2px 6px}
@media(max-width:600px){
  .legal .toc ol{columns:1}
  .legal .scopes,.legal .scopes tbody,.legal .scopes tr,.legal .scopes td,.legal .scopes th{display:block;border:0}
  .legal .scopes tr{border:1px solid var(--border);border-radius:8px;margin-bottom:10px;padding:4px 0}
  .legal .scopes td,.legal .scopes th{border:0;padding:6px 12px}
}

/* ---------- Reveal-on-scroll (progressive; content shows without JS) ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* ---------- Responsive ---------- */
@media(max-width:520px){
  .wrap{padding:0 18px}
  .hero{padding:52px 0 28px}
  section{padding:48px 0}
  .btn.lg{width:100%}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .cta .hero-cta{flex-direction:column}
}
