/* AnonChat website — one stylesheet for all pages */
@font-face{font-family:Inter;src:url(fonts/Inter-Regular.woff) format('woff');font-weight:400;font-display:swap}
@font-face{font-family:Inter;src:url(fonts/Inter-Medium.woff) format('woff');font-weight:500;font-display:swap}
@font-face{font-family:Inter;src:url(fonts/Inter-SemiBold.woff) format('woff');font-weight:600;font-display:swap}
@font-face{font-family:Inter;src:url(fonts/Inter-Bold.woff) format('woff');font-weight:700;font-display:swap}
@font-face{font-family:Plex;src:url(fonts/IBMPlexMono-Regular.woff) format('woff');font-display:swap}

:root{
  --navy:#0B121A; --navy-2:#111B26; --navy-3:#1A2633;
  --ink:#121820; --body:#3A4350; --muted:#6B7480; --rule:#E2E6EB; --soft:#F3F6F8; --white:#fff;
  --cyan:#0E9BC9; --cyan-l:#1BC1EF; --cyan-t:rgba(27,193,239,.12);
  --on-dark:#E8EEF3; --on-dark-2:#9DAAB7;
  --radius:12px; --wrap:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,'Segoe UI',sans-serif;color:var(--body);background:var(--white);font-size:16.5px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
code{font-family:Plex,ui-monospace,monospace;font-size:.88em;background:var(--soft);padding:.1em .35em;border-radius:5px;color:var(--ink)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
h1,h2,h3{color:var(--ink);letter-spacing:-.015em;margin:0}
h2{font-size:clamp(28px,3.4vw,38px);line-height:1.15;font-weight:700}
h3{font-size:19px;font-weight:600;line-height:1.3}
p{margin:0 0 1em}
.kicker{font-size:12.5px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan)}
.lead{font-size:19px;color:var(--body);max-width:720px}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(11,18,26,.92);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid rgba(255,255,255,.06)}
.nav .wrap{display:flex;align-items:center;gap:28px;height:66px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand img{width:30px;height:30px}
.nav nav{display:flex;gap:26px;margin-left:auto;align-items:center}
.nav nav a{color:var(--on-dark-2);font-size:15px;font-weight:500}
.nav nav a:hover,.nav nav a[aria-current=page]{color:#fff;text-decoration:none}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:9px;font-weight:600;font-size:15px;padding:11px 18px;border:1px solid transparent;transition:background .15s,border-color .15s,color .15s}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--cyan-l);color:#04141C}
.btn-primary:hover{background:#3BCBF2}
.btn-ghost{color:#fff;border-color:rgba(255,255,255,.22)}
.btn-ghost:hover{border-color:rgba(255,255,255,.5)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#26303C}
.btn-line{color:var(--ink);border-color:var(--rule);background:#fff}
.btn-line:hover{border-color:#B9C2CC}
.nav .btn{padding:8px 14px;font-size:14px}
.nav nav a.btn-primary,.nav nav a.btn-primary:hover{color:#04141C}
.menu-toggle{display:none;margin-left:auto;background:none;border:1px solid rgba(255,255,255,.2);color:#fff;border-radius:8px;padding:7px 10px;font:inherit;font-size:14px}

/* hero */
.hero{background:radial-gradient(1100px 520px at 85% -10%,rgba(27,193,239,.22),transparent 60%),var(--navy);color:var(--on-dark);padding:84px 0 0;overflow:hidden}
.hero .grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.hero h1{color:#fff;font-size:clamp(38px,5.2vw,62px);line-height:1.04;font-weight:700;letter-spacing:-.025em;margin:14px 0 20px}
.hero h1 em{font-style:normal;color:var(--cyan-l)}
.hero p.lead{color:var(--on-dark-2);font-size:19.5px}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 22px}
.hero .meta{font-size:14px;color:var(--on-dark-2)}
.hero .shot{align-self:end;margin-bottom:-2px}
.hero .shot img{filter:drop-shadow(0 30px 60px rgba(0,0,0,.55))}
.page-hero{background:radial-gradient(900px 420px at 90% -20%,rgba(27,193,239,.2),transparent 60%),var(--navy);color:var(--on-dark-2);padding:72px 0 64px}
.page-hero h1{color:#fff;font-size:clamp(34px,4.4vw,52px);line-height:1.08;font-weight:700;letter-spacing:-.02em;margin:12px 0 16px;max-width:860px}
.page-hero .lead{color:var(--on-dark-2)}

/* trust strip */
.strip{background:var(--navy-2);border-top:1px solid rgba(255,255,255,.06)}
.strip ul{list-style:none;margin:0 auto;padding:22px 24px;max-width:var(--wrap);display:flex;flex-wrap:wrap;gap:14px 40px;justify-content:space-between}
.strip li{display:flex;align-items:center;gap:10px;color:var(--on-dark);font-size:15px;font-weight:500}
.strip svg{color:var(--cyan-l);flex:none}

/* sections */
section{padding:96px 0}
section.alt{background:var(--soft)}
section.dark{background:var(--navy);color:var(--on-dark-2)}
section.dark h2,section.dark h3{color:#fff}
.head{max-width:760px;margin-bottom:48px}
.head h2{margin:10px 0 14px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--rule);border-radius:var(--radius);padding:26px 24px}
.card .ico{width:42px;height:42px;border-radius:10px;background:var(--cyan-t);color:var(--cyan);display:grid;place-items:center;margin-bottom:16px}
.card h3{margin-bottom:8px}
.card p{margin:0;font-size:15.5px}
.split{display:grid;grid-template-columns:1fr 1.15fr;gap:64px;align-items:center}
.split.rev{grid-template-columns:1.15fr 1fr}
.split.rev .txt{order:2}
.frame img{border-radius:12px;border:1px solid #D3DAE1;box-shadow:0 18px 50px rgba(11,18,26,.18)}
.dark .frame img{border-color:rgba(255,255,255,.12);box-shadow:0 24px 60px rgba(0,0,0,.5)}
.caption{font-size:14px;color:var(--muted);margin-top:12px}
.dark .caption{color:var(--on-dark-2)}
.checks{list-style:none;padding:0;margin:18px 0 0}
.checks li{position:relative;padding-left:30px;margin-bottom:12px}
.checks li::before{content:"";position:absolute;left:0;top:.42em;width:18px;height:18px;border-radius:50%;background:var(--cyan-t) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230E9BC9' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/11px no-repeat}
.dark .checks li{color:var(--on-dark)}

/* table */
.table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--rule);border-radius:var(--radius);overflow:hidden;background:#fff;font-size:15.5px}
.table th{background:var(--navy);color:#fff;text-align:left;font-weight:600;padding:15px 18px;font-size:14.5px}
.table th.hl{background:var(--cyan);}
.table td{padding:15px 18px;border-top:1px solid var(--rule);vertical-align:top}
.table td:first-child{font-weight:600;color:var(--ink);width:28%}
.table td.hl{background:rgba(27,193,239,.06);color:var(--ink)}
.table-wrap{overflow-x:auto}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.gallery figure{margin:0}
.gallery img{border-radius:10px;border:1px solid rgba(255,255,255,.12)}
.gallery figcaption{font-size:14.5px;margin-top:12px;color:var(--on-dark-2)}
.gallery figcaption b{color:#fff;font-weight:600}

/* steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;list-style:none;padding:0;margin:0}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--rule);border-radius:var(--radius);padding:24px 22px}
.steps li::before{content:counter(s,decimal-leading-zero);display:block;font-weight:700;color:var(--cyan);font-size:14px;letter-spacing:.08em;margin-bottom:10px}
.steps h3{font-size:17px;margin-bottom:6px}
.steps p{font-size:15px;margin:0}

/* cta */
.cta{background:linear-gradient(110deg,var(--navy) 0,var(--navy-3) 100%);border-radius:18px;padding:52px 48px;display:flex;gap:32px;align-items:center;justify-content:space-between;flex-wrap:wrap;color:var(--on-dark-2)}
.cta h2{color:#fff;font-size:clamp(26px,3vw,34px)}
.cta p{margin:8px 0 0}

/* downloads */
.platforms{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.platform{background:#fff;border:1px solid var(--rule);border-radius:var(--radius);padding:28px 26px;display:flex;flex-direction:column}
.platform .os{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.platform .os svg{color:var(--ink)}
.platform h3{font-size:21px}
.platform .fmt{color:var(--muted);font-size:14.5px;margin:4px 0 18px}
.platform ul{margin:0 0 22px;padding-left:18px;font-size:15px}
.platform .btn{margin-top:auto;justify-content:center}
.platform.soon{background:var(--soft)}
.badge{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--cyan);background:var(--cyan-t);border-radius:99px;padding:3px 10px;margin-left:auto}
.note{border-left:3px solid var(--cyan);background:var(--soft);padding:18px 22px;border-radius:0 10px 10px 0}
.note b{color:var(--ink)}
.faq{display:grid;grid-template-columns:1fr 1fr;gap:18px 40px}
.faq details{border-bottom:1px solid var(--rule);padding:16px 0}
.faq summary{cursor:pointer;font-weight:600;color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::after{content:"+";color:var(--cyan);font-weight:600;font-size:20px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:10px 0 0;font-size:15.5px}

/* diagram */
.diagram{background:#fff;border:1px solid var(--rule);border-radius:var(--radius);padding:28px}
.diagram svg{width:100%;height:auto;display:block}
.roles{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.roles div{border-top:3px solid var(--ink);padding-top:14px}
.roles div.g{border-color:var(--cyan)}
.roles h3{font-size:17px;margin-bottom:6px}
.roles p{font-size:15px;margin:0}
.limits{display:grid;grid-template-columns:1fr 1fr;gap:16px 40px;list-style:none;padding:0;margin:0}
.limits li{padding-left:22px;position:relative}
.limits li::before{content:"";position:absolute;left:0;top:.55em;width:9px;height:9px;border-radius:2px;background:var(--cyan)}
.limits b{color:var(--ink)}

/* footer */
footer{background:var(--navy);color:var(--on-dark-2);padding:56px 0 40px;font-size:14.5px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
footer h4{color:#fff;font-size:14px;margin:0 0 12px;font-weight:600}
footer ul{list-style:none;padding:0;margin:0}
footer li{margin-bottom:8px}
footer a{color:var(--on-dark-2)}
footer a:hover{color:#fff}
footer .legal{border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding-top:22px;font-size:13px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* responsive */
@media (max-width:980px){
  .hero .grid,.split,.split.rev{grid-template-columns:1fr;gap:40px}
  .split.rev .txt{order:0}
  .cards,.gallery,.platforms{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  footer .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  section{padding:68px 0}
  .nav nav{display:none;position:absolute;top:66px;left:0;right:0;background:var(--navy);flex-direction:column;align-items:flex-start;padding:16px 24px 24px;gap:16px;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav nav.open{display:flex}
  .menu-toggle{display:block}
  .cards,.gallery,.platforms,.steps,.faq,.roles,.limits{grid-template-columns:1fr}
  .cta{padding:36px 26px}
  .hero{padding-top:56px}
  .diagram{padding:16px}
}