/* MusicTune AI — v2 site design system (landing + legal + contact).
   Dark, premium, gradient — matches the app and the shared-song page. */
:root{
  --bg:#070A12; --bg2:#0A0E1A;
  --card:rgba(20,25,42,.6); --line:rgba(255,255,255,.08);
  --text:#F4F6FF; --mute:#A6AEC6; --faint:#737B95;
  --teal:#34E2C6; --violet:#8A6BFF;
  --grad:linear-gradient(135deg,#34E2C6,#8A6BFF);
  --maxw:1080px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.6;overflow-x:hidden;
}
/* ambient gradient glows */
.ambient{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(60% 50% at 50% -5%,rgba(138,107,255,.30),transparent 60%),
    radial-gradient(55% 45% at 85% 15%,rgba(52,226,198,.16),transparent 60%),
    radial-gradient(60% 60% at 15% 90%,rgba(138,107,255,.12),transparent 60%),
    linear-gradient(180deg,var(--bg),var(--bg2))}
a{color:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ---- header ---- */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  background:rgba(7,10,18,.55);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:12px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;font-size:17px}
.brand img{width:30px;height:30px;border-radius:9px}
.nav .spacer{flex:1}
.nav a.link{color:var(--mute);text-decoration:none;font-weight:600;font-size:14px;margin:0 10px}
.nav a.link:hover{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-weight:800;
  border-radius:999px;padding:11px 20px;font-size:14.5px;border:none;cursor:pointer}
.btn-primary{background:var(--grad);color:#06121A;box-shadow:0 10px 28px rgba(138,107,255,.4)}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--text);border:1px solid var(--line)}

/* ---- hero ---- */
.hero{text-align:center;padding:74px 0 56px}
.hero .glyph{width:88px;height:88px;border-radius:24px;margin:0 auto 26px;display:block;
  box-shadow:0 18px 50px rgba(138,107,255,.45)}
.hero h1{font-size:clamp(34px,6vw,60px);line-height:1.06;font-weight:800;margin:0 0 18px;letter-spacing:-.5px}
.hero h1 .g{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{font-size:clamp(16px,2.4vw,20px);color:var(--mute);max-width:620px;margin:0 auto 30px;font-weight:500}
.stores{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.store{display:inline-flex;align-items:center;gap:10px;text-decoration:none;background:#fff;color:#000;
  font-weight:700;border-radius:14px;padding:12px 18px;transition:transform .12s ease}
.store:hover{transform:translateY(-2px)}
.store svg{width:22px;height:22px}
.store small{display:block;font-size:10px;font-weight:600;opacity:.65;line-height:1}
.store b{font-size:15px;font-weight:800;line-height:1.2}
.hero .note{color:var(--faint);font-size:13px;font-weight:600;margin-top:16px}

/* ---- features ---- */
.features{padding:34px 0 70px}
.features .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:26px 22px;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.feature .ic{width:50px;height:50px;border-radius:15px;display:grid;place-items:center;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(52,226,198,.22),rgba(138,107,255,.22))}
.feature .ic svg{width:26px;height:26px;fill:none;stroke:var(--teal);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.feature h3{margin:0 0 7px;font-size:18px;font-weight:800}
.feature p{margin:0;color:var(--mute);font-size:14.5px;font-weight:500}
@media(max-width:760px){.features .grid{grid-template-columns:1fr}}

/* ---- footer ---- */
.foot{border-top:1px solid var(--line);padding:34px 0;color:var(--faint)}
.foot .wrap{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.foot .links{display:flex;gap:18px;flex-wrap:wrap}
.foot a{color:var(--mute);text-decoration:none;font-weight:600;font-size:14px}
.foot a:hover{color:var(--text)}
.foot .copy{flex:1;font-size:13px;font-weight:600;min-width:200px}

/* ---- long-form (privacy / terms / contact) ---- */
.doc{max-width:780px;margin:0 auto;padding:54px 22px 70px}
.doc h1{font-size:clamp(30px,5vw,44px);font-weight:800;margin:0 0 6px;letter-spacing:-.4px}
.doc .updated{color:var(--faint);font-weight:600;font-size:14px;margin-bottom:34px}
.doc h2{font-size:21px;font-weight:800;margin:34px 0 10px}
.doc h3{font-size:17px;font-weight:700;margin:22px 0 8px}
.doc p,.doc li{color:var(--mute);font-size:15.5px;font-weight:450}
.doc ul{padding-left:22px}.doc li{margin:6px 0}
.doc a{color:var(--teal);text-decoration:none;font-weight:600}
.doc a:hover{text-decoration:underline}
.doc .callout{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 18px;margin:22px 0;color:var(--mute);font-size:14px}
.doc strong{color:var(--text)}