/* ---------- Tokens ---------- */
:root{
  --bg:#e7ebf3;
  --surface:#dbe1ed;
  --surface-2:#ccd4e4;
  --ink:#161a24;
  --ink-dim:#454c5c;
  --line:#c1c9dc;
  --accent:#6b74e8;
  --accent-bright:#838bf5;
  --accent-ink:#ffffff;
  --deep:#0b0d16;
  --deep-2:#141727;
  --deep-ink:#e9ebf7;
  --deep-line:rgba(139,147,245,0.28);
  --logo-filter:none;
  --status-ok:#2f9e58;
  --status-warn:#a8710a;
  --status-error:#c4453d;
  --serif:'Outfit', ui-sans-serif, system-ui, sans-serif;
  --sans:'Work Sans', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono:'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0d0f18;
    --surface:#141726;
    --surface-2:#1b1f33;
    --ink:#eef0f8;
    --ink-dim:#9aa2bd;
    --line:#272c46;
    --accent:#8b93f5;
    --accent-bright:#a7aef8;
    --accent-ink:#0d0f18;
    --logo-filter:invert(1) brightness(1.15);
    --status-ok:#4ad07f;
    --status-warn:#e0ac4c;
    --status-error:#f2756b;
  }
}
:root[data-theme="dark"]{
  --bg:#0d0f18;
  --surface:#141726;
  --surface-2:#1b1f33;
  --ink:#eef0f8;
  --ink-dim:#9aa2bd;
  --line:#272c46;
  --accent:#8b93f5;
  --accent-bright:#a7aef8;
  --accent-ink:#0d0f18;
  --logo-filter:invert(1) brightness(1.15);
  --status-ok:#4ad07f;
  --status-warn:#e0ac4c;
  --status-error:#f2756b;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;font-size:106.25%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:1rem;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block;}
a{color:inherit;}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px;}
h1,h2,h3{font-family:var(--serif);font-weight:560;text-wrap:balance;margin:0;color:var(--ink);letter-spacing:-0.01em;}
.eyebrow{
  font-family:var(--mono);
  font-size:13.5px;
  letter-spacing:0.13em;
  text-transform:uppercase;
  color:var(--accent);
}
p{margin:0;}
.lede{color:var(--ink-dim);font-size:1.12rem;max-width:56ch;}
section{padding:96px 0;}
@media (max-width:720px){ section{padding:64px 0;} .wrap{padding:0 20px;} }

.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:14.5px;letter-spacing:0.05em;text-transform:uppercase;
  padding:14px 24px;border-radius:3px;border:1px solid transparent;
  text-decoration:none;cursor:pointer;transition:transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn:focus-visible{outline:2px solid var(--accent-bright);outline-offset:3px;}
.btn-accent{background:var(--accent);color:var(--accent-ink);}
.btn-accent:hover{background:var(--accent-bright);transform:translateY(-1px);}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent;}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- Logo ---------- */
.logo-img{height:60px;width:auto;display:block;filter:var(--logo-filter);}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:40;
  background:color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{position:relative;display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:24px;}
.logo-group{display:flex;align-items:center;gap:14px;}
.logo-link{display:flex;align-items:center;text-decoration:none;}
.product-tag{
  font-family:var(--mono);font-size:12.5px;letter-spacing:0.07em;text-transform:uppercase;
  color:var(--ink-dim);border:1px solid var(--line);border-radius:20px;padding:4px 11px;
  white-space:nowrap;
}
.nav-links{display:flex;gap:32px;list-style:none;margin:0;padding:0;font-size:16px;}
.nav-links a{text-decoration:none;color:var(--ink-dim);transition:color .15s ease;}
.nav-links a:hover{color:var(--ink);}
.nav-cta{display:flex;align-items:center;gap:18px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;background:none;border:1px solid var(--line);border-radius:3px;
  color:var(--ink);cursor:pointer;
}
.nav-toggle svg{width:19px;height:19px;}
.nav-toggle:focus-visible{outline:2px solid var(--accent-bright);outline-offset:2px;}
@media (max-width:860px){
  .nav-toggle{display:flex;}
  .nav-cta .btn-ghost{display:none;}
  .nav-links{
    display:none;
    position:absolute;top:calc(100% + 1px);left:0;right:0;
    flex-direction:column;gap:0;
    background:var(--bg);border:1px solid var(--line);border-top:none;
    padding:6px 20px 16px;
  }
  .nav-links.is-open{display:flex;}
  .nav-links li{border-top:1px solid var(--line);}
  .nav-links a{display:block;padding:15px 4px;}
}

/* ---------- Hero ---------- */
.hero{padding:76px 0 100px;position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1.05fr 0.85fr;gap:56px;align-items:center;}
@media (max-width:920px){ .hero-grid{grid-template-columns:1fr;} .atmos-wrap{order:-1;margin:0 auto 8px;} }
.hero h1{font-size:clamp(2.3rem,4.6vw,3.6rem);line-height:1.08;}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero .lede{margin-top:22px;font-size:1.18rem;}
.hero-actions{display:flex;gap:16px;margin-top:34px;flex-wrap:wrap;}
.hero-note{margin-top:18px;font-family:var(--mono);font-size:13.5px;color:var(--ink-dim);letter-spacing:0.02em;}

/* atmosphere ring graphic */
.atmos-wrap{display:flex;justify-content:center;}
.atmos{--size:min(420px, 80vw);width:var(--size);height:var(--size);position:relative;}
.ring{position:absolute;border-radius:50%;border:1px solid var(--line);}
.ring-1{inset:0;}
.ring-2{inset:14%;border-color:color-mix(in srgb, var(--accent) 30%, var(--line));}
.ring-3{inset:29%;border-color:color-mix(in srgb, var(--accent) 55%, var(--line));}
.ring-4{inset:43%;border-color:color-mix(in srgb, var(--accent) 80%, var(--line));border-style:dashed;}
.atmos-core{
  position:absolute;inset:47%;border-radius:50%;
  background:radial-gradient(circle at 35% 30%, var(--accent-bright), var(--accent) 70%);
  box-shadow:0 0 40px 6px color-mix(in srgb, var(--accent) 40%, transparent);
  animation:core-pulse 5s ease-in-out infinite;
}
@keyframes core-pulse{0%,100%{transform:scale(1);}50%{transform:scale(1.14);}}
@media (prefers-reduced-motion: reduce){ .atmos-core{animation:none;} }
.echo-mark{position:absolute;left:6%;bottom:9%;width:20%;height:30%;}
.echo-mark::before,.echo-mark::after{content:"";position:absolute;top:0;width:2px;height:100%;background:var(--accent);border-radius:2px;transform:rotate(14deg);}
.echo-mark::before{left:0;opacity:0.8;}
.echo-mark::after{left:8px;opacity:0.32;}
.atmos-label{position:absolute;font-family:var(--mono);font-size:12.5px;letter-spacing:0.03em;color:var(--ink-dim);white-space:nowrap;}
.label-1{top:10%;right:4%;}
.label-2{top:24%;right:13%;}
.label-3{top:38%;right:22%;}

/* ---------- Trust strip ---------- */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);}
.trust .wrap{display:flex;flex-wrap:wrap;gap:14px 40px;justify-content:space-between;padding:26px 28px;}
.trust-item{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:14px;letter-spacing:0.02em;color:var(--ink-dim);white-space:nowrap;}
.trust-item svg{width:17px;height:17px;flex:none;color:var(--accent);}

/* ---------- Section headers ---------- */
.section-head{max-width:640px;margin-bottom:52px;}
.section-head h2{font-size:clamp(1.7rem,2.9vw,2.3rem);margin-top:10px;}
.section-head .lede{margin-top:14px;}

/* ---------- Features ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
@media (max-width:920px){ .feature-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:560px){ .feature-grid{grid-template-columns:1fr;} }
.feature{background:var(--bg);padding:32px 26px;min-height:190px;display:flex;flex-direction:column;gap:14px;}
.feature .num{font-family:var(--mono);font-size:12.5px;color:var(--accent);letter-spacing:0.08em;}
.feature svg{width:26px;height:26px;color:var(--accent);}
.feature h3{font-size:1.08rem;font-weight:600;font-family:var(--sans);}
.feature p{color:var(--ink-dim);font-size:1rem;}

/* ---------- How it works ---------- */
.how .eyebrow{color:var(--accent);}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:52px;background:var(--line);border:1px solid var(--line);}
@media (max-width:820px){ .steps{grid-template-columns:1fr;} }
.step{background:var(--surface);padding:34px 30px;position:relative;}
.step .step-no{
  font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:0.09em;
  display:flex;align-items:center;gap:10px;margin-bottom:18px;
}
.step .step-no::after{content:"";flex:1;height:1px;background:var(--line);}
.step h3{font-size:1.2rem;margin-bottom:10px;}
.step p{color:var(--ink-dim);font-size:1rem;}

/* ---------- Product suite ---------- */
.app-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
@media (max-width:920px){ .app-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:560px){ .app-grid{grid-template-columns:1fr;} }
.app-card{background:var(--bg);padding:32px 26px;min-height:190px;display:flex;flex-direction:column;gap:12px;}
.app-card svg{width:27px;height:27px;color:var(--accent);}
.app-card .app-old{font-family:var(--mono);font-size:12.5px;color:var(--ink-dim);letter-spacing:0.02em;}
.app-card h3{font-size:1.1rem;font-weight:600;font-family:var(--sans);}
.app-card p{color:var(--ink-dim);font-size:1rem;}

/* ---------- Pricing calculator ---------- */
.calculator{
  border:1px solid var(--line);border-radius:4px;background:var(--surface);
  padding:38px 36px;display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center;
}
@media (max-width:760px){ .calculator{grid-template-columns:1fr;padding:30px 26px;} }
.calc-row{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:16px;font-family:var(--mono);font-size:14.5px;color:var(--ink-dim);}
.calc-row .calc-gb{color:var(--ink);font-weight:600;font-size:15.5px;}
.calc-slider{width:100%;accent-color:var(--accent);height:4px;cursor:pointer;}
.calc-scale{display:flex;justify-content:space-between;margin-top:10px;font-family:var(--mono);font-size:12.5px;color:var(--ink-dim);}
.calc-result{
  border-left:1px solid var(--line);padding-left:40px;
  display:flex;flex-direction:column;gap:6px;
}
@media (max-width:760px){ .calc-result{border-left:none;border-top:1px solid var(--line);padding-left:0;padding-top:26px;} }
.calc-result-label{font-family:var(--mono);font-size:12.5px;letter-spacing:0.07em;text-transform:uppercase;color:var(--ink-dim);}
.calc-result-price{font-family:var(--serif);font-size:2.6rem;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums;}
.calc-result-note{font-size:0.95rem;color:var(--ink-dim);max-width:26ch;}
.pricing-note{margin-top:32px;text-align:center;color:var(--ink-dim);font-size:0.98rem;}

/* ---------- Community ---------- */
.community-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:52px;background:var(--line);border:1px solid var(--line);}
@media (max-width:920px){ .community-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:560px){ .community-grid{grid-template-columns:1fr;} }
.community-card{background:var(--surface);padding:30px 26px;display:flex;flex-direction:column;gap:12px;}
.community-card svg{width:26px;height:26px;color:var(--accent);}
.community-card h3{font-size:1.08rem;font-weight:600;font-family:var(--sans);}
.community-card p{color:var(--ink-dim);font-size:1rem;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:780px;}
details{border-bottom:1px solid var(--line);}
summary{
  list-style:none;cursor:pointer;padding:22px 4px;display:flex;justify-content:space-between;align-items:center;gap:20px;
  font-family:var(--sans);font-weight:500;font-size:1.1rem;
}
summary::-webkit-details-marker{display:none;}
summary .plus{font-family:var(--mono);color:var(--accent);font-size:1.2rem;flex:none;transition:transform .2s ease;}
details[open] summary .plus{transform:rotate(45deg);}
.faq-a{padding:0 4px 24px;color:var(--ink-dim);max-width:62ch;font-size:1.03rem;}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(135deg, var(--accent), var(--accent-bright));color:var(--accent-ink);}
.cta-band .wrap{display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap;padding:52px 28px;}
.cta-band h2{color:var(--accent-ink);font-size:clamp(1.5rem,2.6vw,2rem);}
.cta-band .eyebrow{color:var(--accent-ink);opacity:0.78;}
.cta-band .btn-ghost{border-color:var(--accent-ink);color:var(--accent-ink);}
.cta-band .btn-ghost:hover{background:var(--accent-ink);color:var(--accent-bright);}

/* ---------- Footer (deliberately fixed dark — the night sky beyond the atmosphere) ---------- */
footer{
  background:
    radial-gradient(1.2px 1.2px at 8% 20%, rgba(255,255,255,0.5) 50%, transparent 51%),
    radial-gradient(1.2px 1.2px at 22% 60%, rgba(255,255,255,0.35) 50%, transparent 51%),
    radial-gradient(1.6px 1.6px at 40% 15%, rgba(255,255,255,0.4) 50%, transparent 51%),
    radial-gradient(1.2px 1.2px at 55% 75%, rgba(255,255,255,0.3) 50%, transparent 51%),
    radial-gradient(1.6px 1.6px at 72% 35%, rgba(255,255,255,0.45) 50%, transparent 51%),
    radial-gradient(1.2px 1.2px at 85% 65%, rgba(255,255,255,0.3) 50%, transparent 51%),
    radial-gradient(1.6px 1.6px at 95% 12%, rgba(255,255,255,0.4) 50%, transparent 51%),
    var(--deep);
  color:var(--deep-ink);
  position:relative;
}
footer::before{
  content:"";display:block;height:1px;
  background:var(--deep-line);
}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px;padding:56px 0 36px;}
@media (max-width:780px){ .footer-grid{grid-template-columns:1fr 1fr;} }
@media (max-width:480px){ .footer-grid{grid-template-columns:1fr;} }
footer h4{
  font-family:var(--mono);font-size:13px;letter-spacing:0.09em;text-transform:uppercase;color:var(--accent-bright);
  margin:0 0 16px;
}
footer .logo-img{height:60px;filter:invert(1) brightness(1.15);}
footer p.lede{color:rgba(233,235,247,0.68);margin-top:14px;font-size:1rem;max-width:32ch;}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;font-size:1rem;}
.footer-links a{text-decoration:none;color:rgba(233,235,247,0.82);transition:color .15s ease;}
.footer-links a:hover{color:var(--accent-bright);}
.footer-bottom{
  border-top:1px solid var(--deep-line);padding:22px 0 32px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-family:var(--mono);font-size:13px;color:rgba(233,235,247,0.58);
}