:root{
  --bg:#060a0f;
  --bg2:#081018;
  --panel:#0b131a;
  --line:#1b2a35;
  --line2:#243744;
  --text:#e7f2ef;
  --muted:#93a7b4;
  --dim:#617683;
  --accent:#38f5b8;
  --accent2:#12b886;
  --warn:#ffbd2e;
  --radius:18px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"DejaVu Sans Mono",monospace;font-size:.9em}
img{max-width:100%;height:auto}
h1,h2,h3{line-height:1.15;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,5vw,3.9rem);font-weight:800}
h2{font-size:clamp(1.55rem,3vw,2.4rem);font-weight:750}
h3{font-size:1.08rem;font-weight:700}
p{margin:0 0 1em}
.accent{color:var(--accent)}
.eyebrow{color:var(--muted);font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;margin-bottom:.9em}

.nav{
  position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  gap:24px;padding:14px max(20px,calc((100vw - var(--max))/2));
  background:rgba(6,10,15,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(27,42,53,.8);
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:750;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.nav nav{display:flex;align-items:center;gap:22px;font-size:.92rem}
.nav nav a{color:var(--muted)}
.nav nav a:hover{color:var(--text);text-decoration:none}
.nav .gh{border:1px solid var(--line2);padding:7px 14px;border-radius:999px;color:var(--text)}
.nav .gh:hover{border-color:var(--accent);color:var(--accent)}

main{overflow:hidden}
.hero{
  max-width:var(--max);margin:0 auto;padding:72px 24px 48px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.hero-copy .lead{color:var(--muted);font-size:1.08rem;max-width:56ch}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 16px}
.btn{
  display:inline-flex;align-items:center;gap:10px;padding:14px 24px;border-radius:999px;
  font-weight:650;border:1px solid transparent;transition:transform .15s ease,background .15s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn.primary{background:var(--accent);color:#04120c}
.btn.primary span{background:rgba(4,18,12,.14);border-radius:999px;padding:2px 9px;font-size:.8rem}
.btn.ghost{border-color:var(--line2);color:var(--text);background:rgba(255,255,255,.02)}
.btn.ghost:hover{border-color:var(--accent)}
.fineprint{color:var(--dim);font-size:.8rem;word-break:break-all}
.copy{margin-left:8px;background:none;border:1px solid var(--line2);color:var(--muted);border-radius:8px;padding:2px 8px;font-size:.72rem;cursor:pointer}
.copy:hover{color:var(--accent);border-color:var(--accent)}
.hero-media{position:relative}
.hero-media video{
  width:100%;display:block;border-radius:var(--radius);border:1px solid var(--line);
  background:#000;box-shadow:0 24px 80px rgba(0,0,0,.5);
}
.video-caption{color:var(--dim);font-size:.75rem;text-align:right;margin-top:8px}

.strip{
  max-width:var(--max);margin:12px auto 0;padding:18px 24px;
  display:flex;align-items:center;justify-content:center;gap:22px;flex-wrap:wrap;
  color:var(--dim);font-size:.88rem;letter-spacing:.08em;text-transform:uppercase;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.strip i{width:4px;height:4px;border-radius:50%;background:var(--accent);opacity:.5}

.section{max-width:var(--max);margin:0 auto;padding:88px 24px}
.section-head{max-width:720px;margin-bottom:42px}
.section-head h2{color:var(--text)}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{
  background:linear-gradient(180deg,var(--panel),#091117);
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;
}
.card:hover{border-color:var(--line2)}
.ico{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:#0f211d;color:var(--accent);border:1px solid #1f4f43;margin-bottom:16px;
  font-size:1.1rem;
}
.card p{color:var(--muted);font-size:.94rem;margin:0}

.voice{
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.voice-copy p{color:var(--muted)}
.checks{list-style:none;padding:0;margin:22px 0 0}
.checks li{position:relative;padding-left:28px;margin-bottom:10px;color:var(--muted);font-size:.95rem}
.checks li::before{content:"✓";position:absolute;left:0;top:0;color:var(--accent);font-weight:800}
.voice-shot{display:flex;justify-content:center}
.voice-shot img{
  width:min(360px,100%);border-radius:28px;border:1px solid var(--line2);
  box-shadow:0 30px 90px rgba(0,0,0,.55),0 0 0 8px #0a1117;
}

.shots{display:flex;gap:28px;justify-content:center;flex-wrap:wrap}
.shots figure{margin:0;text-align:center}
.shots img{
  width:min(340px,86vw);border-radius:26px;border:1px solid var(--line2);
  box-shadow:0 24px 70px rgba(0,0,0,.5),0 0 0 7px #0a1117;
}
.shots figcaption{color:var(--dim);font-size:.82rem;margin-top:14px}

.install .steps{
  list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  counter-reset:step;
}
.steps li{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;
}
.steps span{
  display:inline-block;color:var(--accent);font-family:ui-monospace,monospace;
  font-size:.8rem;letter-spacing:.12em;margin-bottom:12px;
}
.steps p{color:var(--muted);font-size:.94rem;margin:0}
.note{
  margin-top:20px;padding:18px 22px;border-radius:14px;color:var(--muted);font-size:.92rem;
  background:#0b1a17;border:1px solid #1f4f43;
}
.note strong{color:var(--text)}

.fdroid{
  display:grid;grid-template-columns:1fr;gap:16px;
  background:linear-gradient(135deg,#0a1714,#081016 60%);border:1px solid #1f4f43;
  border-radius:24px;margin-top:40px;margin-bottom:40px;padding:56px;
}
.fdroid p{color:var(--muted);max-width:70ch}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.badge{
  border:1px solid #1f4f43;color:var(--accent);border-radius:999px;padding:6px 14px;font-size:.78rem;
  background:#0d211c;
}
.badge.muted{border-color:var(--line2);color:var(--muted);background:#0b131a}

.build pre{
  background:#0a1117;border:1px solid var(--line);border-radius:14px;padding:20px 22px;overflow:auto;
  color:#b9d6ce;font-size:.88rem;line-height:1.65;
}
.build .fineprint{color:var(--dim);margin-top:14px}

footer{
  max-width:var(--max);margin:0 auto;padding:48px 24px 64px;border-top:1px solid var(--line);
  color:var(--dim);font-size:.86rem;
}
.foot-brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;margin-bottom:10px}
.foot-links{display:flex;gap:18px;flex-wrap:wrap;margin:14px 0}
.foot-links a{color:var(--muted)}
.foot-links a:hover{color:var(--accent)}
footer .small{font-size:.74rem;max-width:80ch}

@media (max-width:980px){
  .hero{grid-template-columns:1fr;gap:36px;padding-top:48px}
  .hero-media{order:2}
  .grid{grid-template-columns:1fr 1fr}
  .voice{grid-template-columns:1fr;gap:36px}
  .install .steps{grid-template-columns:1fr}
  .fdroid{padding:36px 26px}
}
@media (max-width:680px){
  .nav nav a:not(.gh){display:none}
  .nav{padding:12px 18px}
  .section{padding:64px 18px}
  .grid{grid-template-columns:1fr}
  .strip{gap:14px;font-size:.76rem}
  .cta .btn{width:100%;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important}
}

/* FAQ */
.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq details{
  background:linear-gradient(180deg,var(--panel),#091117);
  border:1px solid var(--line);border-radius:14px;padding:18px 20px;
}
.faq details[open]{border-color:var(--line2)}
.faq summary{
  cursor:pointer;font-weight:650;color:var(--text);list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-size:1.2rem;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq details p{color:var(--muted);font-size:.94rem;margin:12px 0 0}

/* F-Droid repository page */
.repo-wrap{max-width:900px;margin:0 auto;padding:56px 24px 80px}
.repo-card{
  background:linear-gradient(180deg,var(--panel),#091117);
  border:1px solid var(--line2);border-radius:var(--radius);padding:28px;
  margin:22px 0;
}
.repo-card h2{font-size:1.25rem;margin-bottom:10px}
.repo-card p{color:var(--muted)}
.repo-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:14px 0}
.repo-url{
  display:block;background:#0a1117;border:1px solid var(--line);border-radius:10px;
  padding:14px 16px;color:#b9d6ce;font-size:.86rem;word-break:break-all;
}
.fingerprint{
  display:block;background:#0a1117;border:1px solid var(--line);border-radius:10px;
  padding:14px 16px;color:var(--accent);font-size:.8rem;word-break:break-all;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.repo-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.qr{background:#fff;border-radius:14px;padding:12px;display:inline-block;margin-top:8px}
.qr img{display:block;width:190px;height:190px}
ol.repo-steps{color:var(--muted);padding-left:22px}
ol.repo-steps li{margin-bottom:10px}
.small-note{color:var(--dim);font-size:.82rem}

@media (max-width:980px){
  .faq-list{grid-template-columns:1fr}
  .repo-wrap{padding-top:36px}
}

/* Architecture */
.arch-figure{
  margin:0 0 26px;padding:0;border:1px solid var(--line);border-radius:var(--radius);
  background:#060a0f;overflow:hidden;
}
.arch-figure img{display:block;width:100%;height:auto}