/* Popyachsa AirPlay landing — dark, Apple-ish, matches the app's palette. */
:root{
  --blue:#0A84FF; --bg:#0d0f14; --bg2:#14171e; --panel:#1b1f29;
  --field:#232733; --text:#f2f2f7; --dim:#9a9faa; --line:#2a2f3a;
  --radius:16px; --max:1080px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,
       "Noto Sans","Apple Color Emoji","Segoe UI Emoji",sans-serif;
  background:var(--bg);color:var(--text);
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
a{color:var(--blue);text-decoration:none}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;font-weight:700}

/* nav */
.nav{position:sticky;top:0;z-index:10;background:rgba(13,15,20,.72);
  backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:600}
.brand img{border-radius:7px}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-links a{color:var(--dim);font-size:14px;font-weight:500}
.nav-links a:hover{color:var(--text)}
#lang-select{background:var(--field);color:var(--text);border:1px solid var(--line);
  border-radius:8px;padding:6px 10px;font-size:13px;cursor:pointer}
@media(max-width:640px){.nav-links a:not(#lang-select){display:none}}

/* hero */
.hero{text-align:center;padding:88px 0 64px;
  background:radial-gradient(1200px 480px at 50% -10%,rgba(10,132,255,.18),transparent 60%)}
.hero-icon{border-radius:26px;box-shadow:0 18px 60px rgba(10,132,255,.35);margin-bottom:28px}
.hero h1{font-size:clamp(34px,6vw,56px);max-width:14ch;margin:0 auto 18px}
.lead{font-size:clamp(17px,2.4vw,21px);color:var(--dim);max-width:60ch;margin:0 auto 34px}
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 26px;border-radius:12px;font-weight:600;
  font-size:16px;transition:transform .08s ease,background .15s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 30px rgba(10,132,255,.4)}
.btn-primary:hover{background:#2b95ff}
.btn-ghost{background:var(--field);color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--panel)}
.req{color:var(--dim);font-size:13px;margin-top:18px}
.req-min{margin-top:6px;font-size:12px;opacity:.8}
.mirror-cap{margin-top:16px;font-size:12px;color:var(--dim)}
.cta-row-mirror{margin-top:8px;gap:10px}
.btn-mirror{padding:8px 16px;font-size:13px;font-weight:500;background:transparent;
  color:var(--dim);border:1px solid var(--line)}
.btn-mirror:hover{color:var(--text);border-color:var(--blue);background:var(--panel)}

/* screenshot */
.shot{padding:24px 0 16px}
.shot img{width:100%;border-radius:var(--radius);border:1px solid var(--line);
  box-shadow:0 30px 80px rgba(0,0,0,.5)}

/* features */
.features{padding:72px 0}
.features h2,.how h2,.cta-bottom h2{text-align:center;font-size:clamp(26px,4vw,38px);margin-bottom:44px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid{grid-template-columns:1fr}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px}
.card .ico{font-size:26px;margin-bottom:12px}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--dim);font-size:15px}

/* how */
.how{padding:24px 0 72px;background:var(--bg2)}
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:920px;margin:0 auto}
@media(max-width:760px){.steps{grid-template-columns:1fr}}
.steps li{display:flex;gap:14px;align-items:flex-start}
.steps .n{flex:0 0 36px;height:36px;display:grid;place-items:center;border-radius:50%;
  background:var(--blue);color:#fff;font-weight:700}
.steps p{color:var(--dim);font-size:15px}

/* bottom cta */
.cta-bottom{text-align:center;padding:80px 0;
  background:radial-gradient(900px 360px at 50% 120%,rgba(10,132,255,.16),transparent 60%)}
.cta-bottom h2{margin-bottom:26px}

/* footer */
.footer{border-top:1px solid var(--line);padding:36px 0;background:var(--bg)}
.footer-inner{display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center}
.foot-brand{display:flex;align-items:center;gap:9px;font-weight:600}
.foot-brand img{border-radius:6px}
.foot-links{display:flex;gap:22px;flex-wrap:wrap;justify-content:center}
.foot-links a{color:var(--dim);font-size:14px}
.foot-links a:hover{color:var(--text)}
.foot-note{color:var(--dim);font-size:13px}
.foot-donate{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:center;
  font-size:13px;color:var(--dim);background:var(--panel);border:1px solid var(--line);
  border-radius:12px;padding:10px 16px}
.foot-donate code{background:var(--field);color:var(--text);padding:4px 8px;border-radius:6px;
  font-size:12px;word-break:break-all}
.foot-donate #usdt-copy{background:var(--blue);color:#fff;border:0;border-radius:6px;
  padding:5px 12px;font-size:12px;cursor:pointer}
.foot-donate #usdt-copy:hover{background:#2b95ff}
.usdt-net{font-size:11px;opacity:.75}

/* RTL (Arabic) */
html[dir="rtl"] .steps li{flex-direction:row-reverse}
html[dir="rtl"] .brand,html[dir="rtl"] .foot-brand{flex-direction:row-reverse}