/* Tubecast landing page. Tokens shared with the app (src/renderer/styles.css). */
:root {
  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px; --s5: 24px; --s6: 32px; --s7: 40px; --s8: 48px; --s9: 64px; --s10: 96px; --s11: 128px;
  --r-sm: 4px; --r-md: 8px; --r-lg: 12px; --r-xl: 16px; --r-2xl: 24px; --r-pill: 999px;
  --bg: #0f0f0f;
  --raised: #181818;
  --raised-2: #212121;
  --hover: rgba(255, 255, 255, .1);
  --chip: rgba(255, 255, 255, .1);
  --line: rgba(255, 255, 255, .14);
  --line-soft: rgba(255, 255, 255, .08);
  --text: #f1f1f1;
  --text-2: #aaa;
  --text-3: #717171;
  --red: #f00;
  --red-soft: #ff4e45;
  --red-deep: #c4000b;
  --blue: #3ea6ff;
  --shadow: 0 4px 32px rgba(0, 0, 0, .6);
  --wrap: 1120px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 Roboto, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
svg { width: 24px; height: 24px; fill: currentColor; flex: none; }
h1, h2, h3 { margin: 0; letter-spacing: -.02em; line-height: 1.1; }
em { font-style: normal; background: linear-gradient(90deg, var(--red-soft), var(--red)); -webkit-background-clip: text; background-clip: text; color: transparent; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: var(--r-md); }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--s5); }
.narrow { max-width: 760px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s2);
  height: 40px; padding: 0 var(--s5); border-radius: var(--r-pill);
  background: var(--chip); font-weight: 500; white-space: nowrap; transition: background .15s, transform .15s, box-shadow .15s;
}
.btn:hover { background: rgba(255, 255, 255, .18); }
.btn:active { transform: scale(.98); }
.btn.primary { background: var(--text); color: var(--bg); }
.btn.primary:hover { background: #fff; box-shadow: 0 0 0 6px rgba(255, 255, 255, .08); }
.btn.sm { height: 36px; padding: 0 var(--s4); font-size: 14px; }
.btn.lg { height: 52px; padding: 0 var(--s6); font-size: 17px; }
.btn.ghost { background: transparent; box-shadow: inset 0 0 0 1px var(--line); }
.btn.ghost:hover { background: var(--hover); }
.soon {
  font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: 2px var(--s2); border-radius: var(--r-pill); background: rgba(255, 78, 69, .16); color: var(--red-soft);
}

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(15, 15, 15, .72); backdrop-filter: saturate(160%) blur(16px); -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid var(--line-soft);
}
.nav-in { height: 64px; display: flex; align-items: center; gap: var(--s6); }
.brand { display: flex; align-items: center; gap: var(--s2); font-weight: 700; font-size: 18px; letter-spacing: -.01em; }
.brand img { display: block; }
.links { display: flex; gap: var(--s6); margin-left: auto; font-size: 15px; color: var(--text-2); }
.links a:hover { color: var(--text); }

/* Hero */
.hero { position: relative; padding: var(--s10) 0 var(--s9); text-align: center; overflow: hidden; }
.glow {
  position: absolute; inset: -240px 0 auto; height: 720px; pointer-events: none;
  background:
    radial-gradient(520px 320px at 50% 40%, rgba(255, 0, 0, .28), transparent 70%),
    radial-gradient(360px 240px at 28% 60%, rgba(255, 78, 69, .12), transparent 70%),
    radial-gradient(360px 240px at 72% 60%, rgba(196, 0, 11, .14), transparent 70%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: linear-gradient(var(--line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 30%, #000, transparent);
  mask-image: radial-gradient(ellipse 60% 50% at 50% 30%, #000, transparent);
}
.hero-in { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; }
.pill {
  display: inline-flex; align-items: center; gap: var(--s2); height: 32px; padding: 0 var(--s4) 0 var(--s3);
  border-radius: var(--r-pill); background: var(--chip); box-shadow: inset 0 0 0 1px var(--line-soft);
  font-size: 14px; font-weight: 500; color: var(--text-2);
}
.pill svg { width: 18px; height: 18px; color: var(--red-soft); }
.hero h1 { margin-top: var(--s5); font-size: clamp(44px, 8vw, 88px); font-weight: 900; letter-spacing: -.04em; }
.lead { max-width: 620px; margin: var(--s5) 0 0; font-size: clamp(17px, 2.2vw, 20px); color: var(--text-2); }
.cta { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--s3); margin-top: var(--s7); }
.fine { margin: var(--s4) 0 0; font-size: 13px; color: var(--text-3); }

/* App mock */
.shot { width: 100%; max-width: 1000px; margin-top: var(--s9); perspective: 1600px; }
.win {
  border-radius: var(--r-xl); overflow: hidden; background: var(--bg); text-align: left;
  box-shadow: 0 0 0 1px var(--line), 0 40px 120px -20px rgba(255, 0, 0, .25), var(--shadow);
  transform: rotateX(8deg); transform-origin: 50% 0; transition: transform .6s ease;
}
.shot:hover .win { transform: rotateX(0); }
.win-bar { height: 44px; display: flex; align-items: center; gap: var(--s2); padding: 0 var(--s4); border-bottom: 1px solid var(--line-soft); }
.win-bar i { width: 12px; height: 12px; border-radius: 50%; background: #ff5f57; }
.win-bar i:nth-child(2) { background: #febc2e; }
.win-bar i:nth-child(3) { background: #28c840; }
.search { margin: 0 auto; width: min(420px, 50%); height: 28px; display: flex; align-items: center; padding: 0 var(--s4); border-radius: var(--r-pill); background: #121212; box-shadow: inset 0 0 0 1px var(--line); font-size: 12px; color: var(--text-3); }
.win-body { display: flex; }
.side { width: 168px; flex: none; padding: var(--s3); display: flex; flex-direction: column; gap: var(--s2); border-right: 1px solid var(--line-soft); }
.side b { height: 28px; border-radius: var(--r-md); background: linear-gradient(90deg, rgba(255,255,255,.08) 0 18px, transparent 18px 28px, rgba(255,255,255,.06) 28px 75%, transparent 75%); }
.side b.on { background-color: var(--chip); }
.side hr { width: 100%; border: 0; border-top: 1px solid var(--line-soft); margin: var(--s2) 0; }
.feed { flex: 1; padding: var(--s4); min-width: 0; }
.chips { display: flex; align-items: center; gap: var(--s2); font-size: 12px; font-weight: 500; }
.chips span { padding: var(--s1) var(--s3); border-radius: var(--r-md); background: var(--chip); }
.chips span.on { background: var(--text); color: var(--bg); }
.chips em { margin-left: var(--s1); background: none; color: var(--text-3); -webkit-text-fill-color: var(--text-3); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s4) var(--s3); margin-top: var(--s4); }
.card p { height: 10px; margin: var(--s2) 0 0; border-radius: var(--r-sm); background: rgba(255,255,255,.12); }
.card p.short { width: 55%; background: rgba(255,255,255,.07); }
.th { position: relative; aspect-ratio: 16/9; border-radius: var(--r-lg); }
.th s { position: absolute; right: 6px; bottom: 6px; padding: 1px 4px; border-radius: var(--r-sm); background: rgba(0,0,0,.8); font-size: 10px; font-weight: 500; text-decoration: none; }
.t1 { background: linear-gradient(135deg, #3a1c71, #d76d77 60%, #ffaf7b); }
.t2 { background: linear-gradient(135deg, #0f2027, #2c5364); }
.t3 { background: linear-gradient(135deg, #8e0e00, #1f1c18); }
.t4 { background: linear-gradient(135deg, #134e5e, #71b280); }
.t5 { background: linear-gradient(135deg, #232526, #414345 50%, #c4000b); }
.t6 { background: linear-gradient(135deg, #42275a, #734b6d); }
.player { border-top: 1px solid var(--line-soft); background: #181818; }
.seek { height: 3px; background: rgba(255,255,255,.15); }
.seek i { display: block; width: 38%; height: 100%; background: var(--red); }
.pl-in { height: 56px; display: flex; align-items: center; gap: var(--s4); padding: 0 var(--s4); }
.pp { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--text); color: var(--bg); }
.pp svg { width: 20px; height: 20px; }
.player .meta { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.player .meta b { height: 9px; width: 42%; border-radius: var(--r-sm); background: rgba(255,255,255,.18); }
.player .meta b.short { width: 24%; background: rgba(255,255,255,.08); }
.eq { display: flex; align-items: flex-end; gap: 3px; height: 18px; }
.eq i { width: 3px; background: var(--red); border-radius: 2px; animation: eq 1s ease-in-out infinite; }
.eq i:nth-child(2) { animation-delay: -.3s; } .eq i:nth-child(3) { animation-delay: -.6s; } .eq i:nth-child(4) { animation-delay: -.15s; }
@keyframes eq { 0%, 100% { height: 4px; } 50% { height: 18px; } }
.tag { font-size: 12px; font-weight: 500; padding: var(--s1) var(--s3); border-radius: var(--r-pill); background: var(--chip); }

/* Stats band */
.band { border-block: 1px solid var(--line-soft); background: var(--raised); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.stats div { padding: var(--s7) var(--s5); display: flex; flex-direction: column; gap: var(--s1); text-align: center; }
.stats div + div { border-left: 1px solid var(--line-soft); }
.stats b { font-size: 32px; font-weight: 900; letter-spacing: -.03em; }
.stats span { font-size: 14px; color: var(--text-2); }

/* Sections */
.sec { padding: var(--s10) 0; }
.sec.alt { background: var(--raised); border-block: 1px solid var(--line-soft); }
.sec h2 { font-size: clamp(32px, 5vw, 48px); font-weight: 900; text-align: center; }
.sub { max-width: 560px; margin: var(--s4) auto 0; text-align: center; color: var(--text-2); font-size: 18px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s4); margin-top: var(--s8); }
.feat {
  padding: var(--s6); border-radius: var(--r-xl); background: var(--raised); box-shadow: inset 0 0 0 1px var(--line-soft);
  transition: transform .2s, box-shadow .2s, background .2s;
}
.feat:hover { transform: translateY(-4px); background: var(--raised-2); box-shadow: inset 0 0 0 1px var(--line), 0 24px 48px -24px rgba(255, 0, 0, .35); }
.ic { width: 48px; height: 48px; border-radius: var(--r-lg); display: grid; place-items: center; background: linear-gradient(135deg, var(--red-soft), var(--red-deep)); color: #fff; box-shadow: 0 8px 24px -8px rgba(255, 0, 0, .6); }
.feat h3 { margin-top: var(--s5); font-size: 20px; font-weight: 700; }
.feat p { margin: var(--s2) 0 0; color: var(--text-2); font-size: 15px; }

.steps { list-style: none; padding: 0; margin: var(--s8) 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s4); counter-reset: s; }
.steps li { position: relative; padding: var(--s6); border-radius: var(--r-xl); background: var(--bg); box-shadow: inset 0 0 0 1px var(--line-soft); }
.steps span { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--chip); font-weight: 900; }
.steps h3 { margin-top: var(--s5); font-size: 20px; }
.steps p { margin: var(--s2) 0 0; color: var(--text-2); font-size: 15px; }

details { border-bottom: 1px solid var(--line-soft); }
details:first-of-type { margin-top: var(--s7); border-top: 1px solid var(--line-soft); }
summary { list-style: none; cursor: pointer; padding: var(--s5) var(--s7) var(--s5) 0; font-size: 18px; font-weight: 500; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: var(--s2); top: 50%; transform: translateY(-50%); font-size: 24px; font-weight: 400; color: var(--text-2); transition: transform .2s; }
details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
details p { margin: 0 0 var(--s5); color: var(--text-2); }

.final {
  position: relative; overflow: hidden; padding: var(--s9) var(--s5); border-radius: var(--r-2xl); text-align: center;
  background: radial-gradient(600px 300px at 50% 0, rgba(255, 0, 0, .22), transparent 70%), var(--raised);
  box-shadow: inset 0 0 0 1px var(--line);
}
.final img { display: block; margin: 0 auto; filter: drop-shadow(0 16px 32px rgba(255, 0, 0, .35)); }
.final h2 { margin-top: var(--s5); }
.final > p { margin: var(--s3) 0 0; color: var(--text-2); font-size: 18px; }
.final .cta { margin-top: var(--s6); }

.foot { border-top: 1px solid var(--line-soft); }
.foot-in { min-height: 72px; display: flex; align-items: center; flex-wrap: wrap; gap: var(--s2) var(--s5); padding-block: var(--s5); font-size: 14px; color: var(--text-2); }
.foot a { color: var(--text); }
.foot a:hover { text-decoration: underline; }
.muted { color: var(--text-3); }
.link { margin-left: auto; color: var(--blue); font-size: 14px; }
.link:hover { text-decoration: underline; }

/* Sign-up dialog */
.modal { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: var(--s4); background: rgba(0, 0, 0, .7); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); animation: fade .2s ease; }
.modal[hidden] { display: none; }
.dialog { position: relative; width: 100%; max-width: 440px; padding: var(--s7) var(--s6) var(--s6); border-radius: var(--r-2xl); background: var(--raised-2); box-shadow: inset 0 0 0 1px var(--line), var(--shadow); animation: pop .25s cubic-bezier(.2, .9, .3, 1.2); }
.x { position: absolute; top: var(--s3); right: var(--s3); width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; color: var(--text-2); }
.x:hover { background: var(--hover); color: var(--text); }
.x svg { width: 20px; height: 20px; }
.m-badge { display: inline-flex; align-items: center; gap: var(--s2); padding: var(--s1) var(--s3) var(--s1) var(--s2); border-radius: var(--r-pill); background: rgba(40, 200, 64, .14); color: #5ee27a; font-size: 13px; font-weight: 500; }
.m-badge svg { width: 16px; height: 16px; }
.m-badge[hidden] { display: none; }
.dialog h3 { margin-top: var(--s4); font-size: 24px; font-weight: 700; }
.dialog p { margin: var(--s2) 0 0; color: var(--text-2); font-size: 15px; }
.field { display: flex; gap: var(--s2); margin-top: var(--s5); }
.field input {
  flex: 1; min-width: 0; height: 44px; padding: 0 var(--s4); border-radius: var(--r-pill); border: 0;
  background: #121212; color: var(--text); font: inherit; font-size: 15px; box-shadow: inset 0 0 0 1px var(--line); outline: none;
}
.field input:focus { box-shadow: inset 0 0 0 2px var(--blue); }
.field .btn { height: 44px; }
.err { min-height: 20px; margin: var(--s2) 0 0 !important; padding-left: var(--s4); color: var(--red-soft) !important; font-size: 13px !important; }
.skip { display: block; margin: var(--s2) auto 0; padding: var(--s2) var(--s3); border-radius: var(--r-md); color: var(--text-3); font-size: 14px; }
.skip:hover { color: var(--text-2); background: var(--hover); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.m-done { text-align: center; }
.m-done[hidden], .m-body[hidden] { display: none; }
.done-ic { width: 56px; height: 56px; margin: 0 auto; border-radius: 50%; display: grid; place-items: center; background: rgba(40, 200, 64, .16); color: #5ee27a; }
.m-done .btn { margin-top: var(--s5); }
@keyframes fade { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: translateY(12px) scale(.97); } }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .features, .steps { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stats div:nth-child(3) { border-left: 0; }
  .stats div:nth-child(n+3) { border-top: 1px solid var(--line-soft); }
  .side { display: none; }
}
@media (max-width: 640px) {
  .links { display: none; }
  .nav-in .btn { margin-left: auto; }
  .hero { padding-top: var(--s9); }
  .cta { flex-direction: column; width: 100%; }
  .cta .btn { width: 100%; }
  .features, .steps { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr 1fr; }
  .grid .card:nth-child(n+5) { display: none; }
  .win { transform: none; }
  .sec { padding: var(--s9) 0; }
  .field { flex-direction: column; }
  .link { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}