/* blivvio.css — shared brand system for Blivvio landing pages.
   Dark liquid-glass, privacy-first. Per-page personality via a body class +
   --accent overrides. Responsive: desktop ≥ 900px, mobile below. */

:root{
  --ink:#0a0c12;
  --panel:#11141c;
  --text:#EEF2FA;
  --dim:rgba(238,242,250,0.62);
  --faint:rgba(238,242,250,0.40);
  --rule:rgba(255,255,255,0.10);
  --rule2:rgba(255,255,255,0.06);
  --glass:rgba(255,255,255,0.045);
  --glass2:rgba(255,255,255,0.07);
  --accent:#84C5D9;
  --accent-solid:#5E9DB8;
  --accent-glow:rgba(132,197,217,0.55);
  --sage:#7CA177;
  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",sans-serif;
  --disp:-apple-system,BlinkMacSystemFont,"SF Pro Display","Helvetica Neue",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);color:var(--text);background:var(--ink);
  -webkit-font-smoothing:antialiased;line-height:1.5;overflow-x:hidden;
}
/* ambient aurora behind everything */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(120% 80% at 50% -10%, #1b2233 0%, #11141c 45%, #0a0c12 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background:
    radial-gradient(40% 40% at 14% 8%, var(--accent-glow), transparent 70%),
    radial-gradient(42% 42% at 88% 14%, rgba(120,110,200,.45), transparent 70%);
  filter:blur(30px);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.wrap{max-width:1120px;margin:0 auto;padding:0 28px}
.wrap--narrow{max-width:880px}
section{position:relative}

/* ── type ───────────────────────────────────────────── */
.eyebrow{font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 14px}
h1,h2,h3{font-family:var(--disp);letter-spacing:-.022em;margin:0;font-weight:760;text-wrap:balance}
h1{font-size:clamp(38px,5.4vw,66px);line-height:1.04}
h2{font-size:clamp(28px,3.4vw,42px);line-height:1.1}
h3{font-size:19px;font-weight:680;letter-spacing:-.01em}
.lead{font-size:clamp(16px,1.7vw,20px);color:var(--dim);line-height:1.55;text-wrap:pretty}
.muted{color:var(--dim)}
.faint{color:var(--faint)}
.mono{font-family:var(--mono)}
.center{text-align:center}

/* ── buttons ────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:9px;padding:11px 20px;border-radius:11px;
  font-size:14.5px;font-weight:600;cursor:pointer;border:.5px solid var(--rule);
  background:var(--glass2);color:var(--text);transition:transform .15s,background .15s,box-shadow .15s;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:linear-gradient(180deg,var(--accent),var(--accent-solid));color:#0a141a;border:none;
  box-shadow:0 8px 24px -8px var(--accent-glow),inset 0 1px 0 rgba(255,255,255,.3)}
.btn--ghost{background:transparent}
.btn--lg{padding:14px 26px;font-size:16px;border-radius:13px}
.btn .sub{font-weight:450;opacity:.7}

/* ── nav ────────────────────────────────────────────── */
.nav{position:sticky;top:0;z-index:30;backdrop-filter:blur(20px) saturate(160%);-webkit-backdrop-filter:blur(20px) saturate(160%);
  background:rgba(10,12,18,.6);border-bottom:.5px solid var(--rule2)}
.nav__in{display:flex;align-items:center;gap:24px;height:62px;max-width:1120px;margin:0 auto;padding:0 28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:740;font-size:17px;letter-spacing:-.02em;font-family:var(--disp)}
.brand .mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(180deg,#28385A,#0B1426);
  display:flex;align-items:center;justify-content:center;box-shadow:inset 0 1px 0 rgba(255,255,255,.18)}
.nav__links{display:flex;gap:26px;margin-left:8px}
.nav__links a{font-size:14px;color:var(--dim);font-weight:520}
.nav__links a:hover{color:var(--text)}
.nav__cta{margin-left:auto;display:flex;align-items:center;gap:14px}

/* ── aperture mark ──────────────────────────────────── */
.aperture{display:block}
.mark .aperture{color:#F2EDE0}

/* ── glass surfaces ─────────────────────────────────── */
.glass{background:var(--glass);border:.5px solid var(--rule);border-radius:16px;
  box-shadow:inset 0 .5px 0 rgba(255,255,255,.08);backdrop-filter:blur(12px)}
.pill{display:inline-flex;align-items:center;gap:8px;padding:7px 13px;border-radius:999px;
  background:var(--glass2);border:.5px solid var(--rule);font-size:13px;font-weight:540;color:var(--dim)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--sage);flex:none}

/* ── hero ───────────────────────────────────────────── */
.hero{padding:64px 0 40px}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero__copy .lead{margin:18px 0 26px;max-width:30em}
.cta-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.cta-note{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-top:16px}

/* ── waveform ───────────────────────────────────────── */
.waves{display:flex;align-items:center;gap:3px;height:24px;color:var(--accent)}
.waves i{width:3px;border-radius:2px;background:currentColor;height:100%;transform-origin:center;
  animation:wv 900ms ease-in-out infinite}
@keyframes wv{0%,100%{transform:scaleY(.22)}50%{transform:scaleY(1)}}

/* ── app window mock ────────────────────────────────── */
.appwin{border-radius:16px;overflow:hidden;border:.5px solid rgba(255,255,255,.14);
  background:rgba(24,27,34,.82);backdrop-filter:blur(34px) saturate(180%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14),0 40px 90px -28px rgba(0,0,0,.8);
  font-size:13px;width:100%}
.appwin__bar{height:38px;display:flex;align-items:center;gap:8px;padding:0 14px;
  border-bottom:.5px solid var(--rule);background:rgba(255,255,255,.03);position:relative}
.tl{width:11px;height:11px;border-radius:50%}
.appwin__bar .ti{position:absolute;left:0;right:0;text-align:center;font-size:12px;font-weight:600;color:var(--dim)}
.appwin__body{display:flex;min-height:300px}
.appwin__side{width:150px;flex:none;border-right:.5px solid var(--rule);background:rgba(255,255,255,.03);padding:10px 8px;display:flex;flex-direction:column;gap:2px}
.navrow{display:flex;align-items:center;gap:9px;height:30px;padding:0 9px;border-radius:8px;font-size:12.5px;color:var(--dim);font-weight:500}
.navrow.on{background:rgba(255,255,255,.08);color:#fff;position:relative}
.navrow.on::before{content:"";position:absolute;left:2px;top:8px;bottom:8px;width:2.5px;border-radius:2px;background:var(--accent);box-shadow:0 0 8px var(--accent-glow)}
.navrow svg{width:15px;height:15px;flex:none;opacity:.8}
.navrow.on svg{color:var(--accent);opacity:1}
.appwin__main{flex:1;padding:16px;display:flex;flex-direction:column;gap:12px;min-width:0}
.posture{border-radius:13px;border:.5px solid var(--rule);background:var(--glass);padding:14px;position:relative;overflow:hidden}
.posture .ico{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.07);display:flex;align-items:center;justify-content:center;color:var(--accent);flex:none}
.row3{display:flex;gap:7px;margin-top:13px}
.row3 .c{flex:1;border-radius:9px;background:rgba(255,255,255,.05);border:.5px solid var(--rule);padding:9px 10px}
.row3 .c b{font-size:12px;display:flex;align-items:center;gap:6px}
.row3 .c span{font-size:10px;color:var(--faint)}
.grp{border-radius:12px;border:.5px solid var(--rule);background:var(--glass);overflow:hidden}
.grp .gr{display:flex;align-items:center;gap:10px;padding:11px 13px;border-top:.5px solid var(--rule)}
.grp .gr:first-child{border-top:none}
.grp .gr .t{flex:1;font-size:12.5px}
.tog{width:34px;height:20px;border-radius:11px;background:var(--accent-solid);position:relative;flex:none}
.tog::after{content:"";position:absolute;top:2px;left:16px;width:16px;height:16px;border-radius:50%;background:#fff}
.tog.off{background:rgba(255,255,255,.18)}
.tog.off::after{left:2px}

/* ── phone frame ────────────────────────────────────── */
.phone{width:300px;border-radius:42px;padding:11px;background:#1a1d24;border:.5px solid rgba(255,255,255,.12);
  box-shadow:0 40px 80px -30px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.1)}
.phone__scr{border-radius:32px;overflow:hidden;background:#0c0e14;position:relative;aspect-ratio:9/19.5}
.phone__notch{position:absolute;top:9px;left:50%;transform:translateX(-50%);width:90px;height:24px;border-radius:14px;background:#000;z-index:2}

/* ── sections / features ───────────────────────────── */
.sec{padding:60px 0}
.sec__head{max-width:640px;margin-bottom:38px}
.grid{display:grid;gap:18px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.feature{padding:22px}
.feature .fi{width:40px;height:40px;border-radius:11px;background:var(--glass2);display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:16px}
.feature h3{margin-bottom:7px}
.feature p{margin:0;font-size:14px;color:var(--dim);line-height:1.55}

/* steps */
.steps{counter-reset:s;display:grid;gap:16px}
.step{display:flex;gap:16px;padding:20px 22px}
.step .n{width:30px;height:30px;border-radius:50%;border:.5px solid var(--rule);display:flex;align-items:center;justify-content:center;
  font-weight:700;color:var(--accent);flex:none;font-size:14px;background:var(--glass2)}
.step h3{margin-bottom:4px}
.step p{margin:0;font-size:14px;color:var(--dim)}

/* pricing */
.prices{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;max-width:720px;margin:0 auto}
.price{padding:26px}
.price.feat{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent-glow),inset 0 .5px 0 rgba(255,255,255,.1)}
.price .amt{font-family:var(--disp);font-size:42px;font-weight:780;letter-spacing:-.03em;margin:10px 0}
.price .amt small{font-size:15px;font-weight:500;color:var(--dim)}
.price ul{list-style:none;padding:0;margin:18px 0 0;display:flex;flex-direction:column;gap:11px}
.price li{display:flex;gap:10px;font-size:14px;color:var(--dim);align-items:flex-start}
.price li svg{color:var(--sage);flex:none;margin-top:2px}

/* faq */
.faq{display:grid;gap:12px;max-width:780px;margin:0 auto}
.faq__q{padding:18px 22px}
.faq__q h3{font-size:16px;margin-bottom:8px;display:flex;justify-content:space-between;gap:12px}
.faq__q p{margin:0;font-size:14px;color:var(--dim);line-height:1.55}

/* cta band */
.cta-band{padding:72px 0;text-align:center}

/* footer */
.foot{border-top:.5px solid var(--rule2);padding:46px 0 38px;margin-top:30px}
.foot__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}
.foot h4{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--faint);margin:0 0 14px;font-weight:600}
.foot a{display:block;font-size:14px;color:var(--dim);margin-bottom:10px}
.foot a:hover{color:var(--text)}
.foot__bottom{display:flex;align-items:center;justify-content:space-between;margin-top:36px;padding-top:22px;border-top:.5px solid var(--rule2);font-size:13px;color:var(--faint);flex-wrap:wrap;gap:12px}

/* ── responsive ─────────────────────────────────────── */
@media (max-width:900px){
  .hero__grid{grid-template-columns:1fr;gap:36px}
  .hero__grid>*{min-width:0}
  .appwin,.appwin__main,.row3{min-width:0}
  .row3{flex-wrap:wrap}
  .hero{padding:36px 0 20px}
  .g3,.g2{grid-template-columns:1fr}
  .prices{grid-template-columns:1fr}
  .foot__grid{grid-template-columns:1fr 1fr}
  .nav__links{display:none}
  .hero__art{order:-1}
}
@media (max-width:560px){
  .wrap{padding:0 18px}
  .nav__in{padding:0 18px}
  .foot__grid{grid-template-columns:1fr 1fr}
  .cta-row{flex-direction:column;align-items:stretch}
  .btn{justify-content:center}
}

/* ── sub-pages (download / support / legal / changelog) ─────────── */
.subhero{padding:54px 0 30px;border-bottom:.5px solid var(--rule2)}
.subhero .eyebrow{margin-bottom:12px}
.subhero h1{font-size:clamp(32px,4.2vw,50px)}
.subhero .lead{margin-top:14px;max-width:36em}
.crumbs{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--faint);margin-bottom:18px}
.crumbs a:hover{color:var(--text)}

/* doc article + TOC */
.doc-wrap{display:grid;grid-template-columns:200px 1fr;gap:48px;padding:48px 0}
.toc{position:sticky;top:84px;align-self:start;font-size:13.5px;display:flex;flex-direction:column;gap:9px}
.toc a{color:var(--dim)}
.toc a:hover{color:var(--text)}
.toc .tt{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--faint);font-weight:600;margin-bottom:4px}
.doc{max-width:720px}
.doc h2{font-size:24px;margin:36px 0 12px;scroll-margin-top:84px}
.doc h2:first-child{margin-top:0}
.doc h3{font-size:16px;margin:22px 0 8px}
.doc p,.doc li{font-size:15px;line-height:1.7;color:var(--dim)}
.doc p{margin:0 0 14px}
.doc ul{margin:0 0 16px;padding-left:20px;display:flex;flex-direction:column;gap:7px}
.doc strong{color:var(--text);font-weight:620}
.doc a{color:var(--accent)}
.doc .updated{font-size:13px;color:var(--faint);margin-bottom:26px;padding-bottom:18px;border-bottom:.5px solid var(--rule)}

/* support: categories + articles + contact */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cat{padding:20px;display:block}
.cat .ci{width:38px;height:38px;border-radius:10px;background:var(--glass2);display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:14px}
.cat h3{margin-bottom:5px}
.cat p{margin:0;font-size:13.5px;color:var(--dim)}
.searchbar{display:flex;align-items:center;gap:11px;padding:14px 18px;border-radius:13px;max-width:560px}
.searchbar input{flex:1;background:none;border:none;outline:none;color:var(--text);font-size:15px;font-family:var(--sans)}
.searchbar input::placeholder{color:var(--faint)}
.alist{display:flex;flex-direction:column}
.alist a{display:flex;align-items:center;gap:12px;padding:15px 4px;border-top:.5px solid var(--rule);font-size:14.5px;color:var(--text)}
.alist a:first-child{border-top:none}
.alist a .ar{margin-left:auto;color:var(--faint)}
.alist a:hover .ar{color:var(--accent)}
.contact{display:flex;align-items:center;gap:18px;padding:24px;flex-wrap:wrap}

/* download specifics */
.reqs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.req{padding:16px 18px}
.req .l{font-size:12px;color:var(--faint);text-transform:uppercase;letter-spacing:.05em}
.req .v{font-size:15px;font-weight:600;margin-top:4px}
.dlbox{padding:30px;text-align:center}
.dlbox .ver{font-family:var(--mono);font-size:13px;color:var(--dim);margin-top:14px}

/* changelog timeline */
.rel{display:grid;grid-template-columns:160px 1fr;gap:28px;padding:26px 0;border-top:.5px solid var(--rule)}
.rel:first-child{border-top:none}
.rel .when{font-size:13px;color:var(--faint)}
.rel .ver{font-family:var(--disp);font-size:22px;font-weight:740;letter-spacing:-.02em;margin-top:4px}
.rel .tag{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:3px 9px;border-radius:999px;margin-bottom:9px}
.tag--new{background:rgba(124,161,119,.16);color:#9CC097}
.tag--imp{background:rgba(132,197,217,.16);color:var(--accent)}
.tag--fix{background:rgba(201,154,82,.16);color:#D9B36A}
.rel ul{list-style:none;padding:0;margin:0 0 16px;display:flex;flex-direction:column;gap:8px}
.rel li{font-size:14.5px;color:var(--dim);display:flex;gap:10px}
.rel li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--faint);flex:none;margin-top:8px}

@media (max-width:820px){
  .doc-wrap{grid-template-columns:1fr;gap:24px;padding:30px 0}
  .toc{position:static;flex-direction:row;flex-wrap:wrap;gap:14px}
  .toc .tt{display:none}
  .cat-grid,.reqs{grid-template-columns:1fr}
  .rel{grid-template-columns:1fr;gap:8px}
}