/* FireFly site: a darkened screening room. Shared by the home page and the install guide. */
:root{
  --night:#08090b; --reel:#111318; --seat:#1a1d24; --line:#262a33;
  --ink:#f2efe6; --dim:#9a9a92; --faint:#6c6c66;
  --glow:#ffc83d; --glow-tint:rgba(255,200,61,.14); --ok:#3ecf8e; --ok-tint:rgba(62,207,142,.12); --no:#e2665a;
  --f-display:"Noto Serif SC","Songti SC","STSong",serif;
  --f-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important}}
body{margin:0;background:var(--night);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%}
.in{max-width:1160px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.eyebrow{font-family:var(--f-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--glow)}
h1,h2,h3{text-wrap:balance}
h2{font-family:var(--f-display);font-weight:900;font-size:clamp(28px,4.2vw,44px);line-height:1.25;margin:0}
.lead{color:var(--dim);max-width:36em;margin:0}
.head{display:grid;gap:14px;max-width:680px;margin-bottom:48px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:8px;font-weight:700;font-size:15px;text-decoration:none;transition:box-shadow .15s,border-color .15s}
.btn.primary{background:var(--glow);color:#1a1300}
.btn.primary:hover,.btn.primary:focus-visible{box-shadow:0 0 28px 2px rgba(255,200,61,.45);outline:none}
.btn.ghost{border:1px solid var(--line);color:var(--ink);background:rgba(255,255,255,.02)}
.btn.ghost:hover,.btn.ghost:focus-visible{border-color:var(--glow);outline:none}
.btn svg{width:18px;height:18px}
.soon{font-size:11px;font-family:var(--f-mono);color:var(--glow);border:1px solid rgba(255,200,61,.35);border-radius:4px;padding:0 6px;font-weight:400;white-space:nowrap}

/* nav */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:30;background:var(--night)}
nav.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:rgba(8,9,11,.78);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(38,42,51,.7)}
nav.site .in{display:flex;align-items:center;gap:28px;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;text-decoration:none;font-size:16px;white-space:nowrap}
.brand i{width:9px;height:9px;border-radius:50%;background:var(--glow);box-shadow:0 0 12px 4px rgba(255,200,61,.7)}
.brand small{font-family:var(--f-mono);font-weight:400;color:var(--dim);font-size:12px}
nav.site ul{flex:none;white-space:nowrap;display:flex;gap:24px;list-style:none;margin:0;padding:0;font-size:14px;color:var(--dim)}
nav.site ul a{text-decoration:none}
nav.site ul a:hover,nav.site ul a:focus-visible,nav.site ul a[aria-current]{color:var(--ink);outline:none}
nav.site .right{margin-left:auto;display:flex;gap:10px}
nav.site .right .btn{font-size:13px;padding:7px 14px}
@media (max-width:540px){nav.site .in{gap:16px}nav.site ul{gap:16px}nav.site .brand small{display:none}}
@media (max-width:420px){nav.site .right .ghost{display:none}}

/* panels and small UI pieces reused in mock-ups */
.panel{background:var(--reel);border:1px solid var(--line);border-radius:12px;padding:18px;min-width:0}
.chips{display:flex;flex-wrap:wrap;gap:6px;font-size:11.5px}
.chips span{background:#232731;border-radius:4px;padding:1px 7px;color:#cfccc2}
.chips span.q{background:var(--glow-tint);color:var(--glow);font-weight:700}
.chips span.src{background:var(--ok-tint);color:var(--ok)}
.code{display:flex;align-items:center;gap:10px;background:#050607;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-family:var(--f-mono);font-size:12.5px;overflow-x:auto}
.code code{white-space:nowrap;flex:1;min-width:0}
.code code.sh::before{content:"$ ";color:var(--glow)}
.copybtn{flex:none;font:inherit;font-size:11.5px;color:var(--dim);background:none;border:1px solid var(--line);border-radius:5px;padding:2px 8px;cursor:pointer}
.copybtn:hover,.copybtn:focus-visible{color:var(--ink);border-color:var(--glow);outline:none}

/* faq */
details{background:var(--reel);border:1px solid var(--line);border-radius:12px;padding:0 20px}
summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--f-mono);color:var(--glow);font-weight:400}
details[open] summary::after{content:"–"}
summary:focus-visible{outline:2px solid var(--glow);outline-offset:4px;border-radius:4px}
details p,details ol,details ul{margin:0 0 16px;color:var(--dim);font-size:15px}

/* footer */
footer{margin-top:120px;border-top:1px solid var(--line);padding-block:48px}
footer .in{display:flex;flex-wrap:wrap;gap:24px 48px;justify-content:space-between;font-size:13.5px;color:var(--dim)}
footer .closing{font-family:var(--f-display);font-size:22px;color:var(--ink);margin:0 0 6px}
footer nav{display:flex;gap:20px;flex-wrap:wrap}
footer nav a{text-decoration:none}
footer nav a:hover{color:var(--ink)}
.fine{flex-basis:100%;font-size:12px;color:var(--faint);max-width:60em;margin:0}