/* Egrekci download page. Colours follow the app (src/ui.rs). */
:root {
  --bg: #0e1016;
  --surface: #161922;
  --surface-hi: #1e222e;
  --border: #262b3a;
  --text: #eef0f6;
  --muted: #8b91a7;
  --cyan: #22d3ee;
  --violet: #7c3aed;
  --accent: #7c6cff;
  --good: #34d399;
  --grad: linear-gradient(135deg, var(--cyan), var(--violet));
  --radius: 18px;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.15; margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.muted { color: var(--muted); }

/* Header */
header.top {
  position: sticky; top: 0; z-index: 10;
  background: rgba(14, 16, 22, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
header.top .wrap { display: flex; align-items: center; gap: 24px; height: 64px; }
header.top .logo img { height: 28px; width: auto; }
header.top nav { display: flex; gap: 22px; margin-left: auto; font-size: 14.5px; }
header.top nav a { text-decoration: none; color: var(--muted); }
header.top nav a:hover { color: var(--text); }
.lang { font-size: 13px; font-weight: 600; text-decoration: none; padding: 6px 10px; border: 1px solid var(--border); border-radius: 8px; color: var(--muted); }
.lang:hover { color: var(--text); border-color: var(--accent); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 12px;
  font-weight: 600; font-size: 16px; text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--grad); color: #fff; box-shadow: 0 8px 30px -8px rgba(124, 58, 237, .6);
  position: relative; overflow: hidden;
}
.btn-primary::after {
  content: ""; position: absolute; inset: 0; transform: translateX(-120%);
  background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, .35) 50%, transparent 70%);
  animation: shine 4.5s ease-in-out infinite;
}
.btn-primary:hover { box-shadow: 0 12px 36px -8px rgba(34, 211, 238, .55); }
.btn-ghost { border: 1px solid var(--border); color: var(--text); background: var(--surface); }
.btn svg { width: 20px; height: 20px; flex: none; }

/* Hero */
.hero { position: relative; padding: 88px 0 72px; }
.hero::before {
  content: ""; position: absolute; inset: -200px 0 auto 0; height: 700px; z-index: -1;
  animation: drift 18s ease-in-out infinite alternate;
  background: radial-gradient(600px 300px at 70% 30%, rgba(124, 58, 237, .28), transparent 70%),
              radial-gradient(500px 260px at 25% 20%, rgba(34, 211, 238, .16), transparent 70%);
}
.hero .wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.badge {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600;
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--muted);
}
.badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--good); box-shadow: 0 0 10px var(--good); animation: pulse 2s ease-in-out infinite; }
.hero h1 { font-size: clamp(36px, 5.4vw, 60px); margin: 18px 0 18px; font-weight: 800; }
.hero .lead { font-size: 18.5px; color: var(--muted); max-width: 560px; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 14px; }
.hero .meta { font-size: 13.5px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 6px 16px; }
.hero .meta span { display: inline-flex; align-items: center; gap: 6px; }
.shot { position: relative; justify-self: center; perspective: 1200px; }
.shot img {
  width: 360px; filter: drop-shadow(0 40px 50px rgba(0, 0, 0, .7));
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform .4s cubic-bezier(.2, .7, .2, 1);
  animation: float 7s ease-in-out infinite;
}
.shot::after {
  content: ""; position: absolute; inset: 10% -10%; z-index: -1; filter: blur(60px);
  background: var(--grad); opacity: .35; border-radius: 40px;
}

/* Sections */
section { padding: 80px 0; }
.sec-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.sec-head .eyebrow { font-size: 12.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--cyan); }
.sec-head h2 { font-size: clamp(28px, 3.6vw, 40px); margin: 10px 0 14px; font-weight: 800; }
.sec-head p { color: var(--muted); font-size: 17px; }

.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px;
  transition: border-color .25s ease, transform .25s ease, background .25s ease;
}
.card:hover { border-color: rgba(124, 108, 255, .45); transform: translateY(-3px); background: #191c27; }
.card h3 { font-size: 17.5px; margin: 14px 0 8px; }
.card p { color: var(--muted); font-size: 15px; }
.ico {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(34, 211, 238, .16), rgba(124, 58, 237, .22));
  border: 1px solid rgba(124, 108, 255, .3);
}
.ico svg { width: 22px; height: 22px; stroke: #c8c3ff; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* Presets */
.presets .card { text-align: center; }
.presets .bars { display: flex; align-items: flex-end; justify-content: center; gap: 5px; height: 56px; margin-bottom: 6px; }
.presets .bars i { width: 9px; border-radius: 5px; background: var(--grad); opacity: .9; transform-origin: bottom; animation: eq 1.6s ease-in-out infinite; }
.presets .bars i:nth-child(2) { animation-delay: -.3s; }
.presets .bars i:nth-child(3) { animation-delay: -.7s; }
.presets .bars i:nth-child(4) { animation-delay: -1.1s; }
.presets .bars i:nth-child(5) { animation-delay: -.5s; }
.presets .card:nth-child(4) .bars i { animation: none; }
.presets .tag { font-size: 12px; color: var(--cyan); font-weight: 600; }

/* Steps */
.steps { counter-reset: s; }
.steps .card { position: relative; padding-top: 56px; }
.steps .card::before {
  counter-increment: s; content: counter(s);
  position: absolute; top: 20px; left: 24px; width: 28px; height: 28px; border-radius: 8px;
  display: grid; place-items: center; font-weight: 700; font-size: 14px; background: var(--grad); color: #fff;
}

/* Logos */
.logos { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.logos .track { display: flex; gap: 14px; width: max-content; animation: marquee 32s linear infinite; }
.logos:hover .track { animation-play-state: paused; }
.logo-chip {
  display: inline-flex; align-items: center; gap: 10px; padding: 12px 18px;
  border: 1px solid var(--border); background: var(--surface); border-radius: 12px; font-weight: 600; font-size: 15px;
}
.logo-chip img, .logo-chip svg { width: 22px; height: 22px; }
.logo-chip img { filter: invert(1); opacity: .9; }
.os { display: flex; justify-content: center; margin-top: 28px; }

/* Tech */
.tech .card { display: flex; gap: 16px; align-items: flex-start; }
.tech .card .tl { width: 44px; height: 44px; flex: none; border-radius: 12px; background: var(--surface-hi); display: grid; place-items: center; }
.tech .card .tl img { width: 24px; height: 24px; filter: invert(1); }
.tech .card .tl b { font-size: 13px; color: #c8c3ff; }
.tech h3 { margin: 0 0 4px; }

/* FAQ */
.faq { max-width: 780px; margin: 0 auto; display: grid; gap: 10px; }
.faq details { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 4px 20px; }
.faq summary { cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--muted); padding: 0 0 16px; }

/* Download band */
.dl {
  text-align: center; padding: 56px 24px; border-radius: 24px; border: 1px solid var(--border);
  background: radial-gradient(500px 200px at 50% 0%, rgba(124, 58, 237, .25), transparent 70%), var(--surface);
}
.dl h2 { font-size: clamp(28px, 3.6vw, 40px); font-weight: 800; margin-bottom: 12px; }
.dl p { color: var(--muted); margin-bottom: 28px; }
.dl .sha { margin-top: 18px; font-size: 12px; color: var(--muted); word-break: break-all; }
.dl code { font-family: ui-monospace, Consolas, monospace; }

footer { border-top: 1px solid var(--border); padding: 32px 0 48px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; align-items: center; }
footer a { color: var(--muted); }

@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .shot img { width: 300px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  header.top nav { display: none; }
  header.top .lang { margin-left: auto; }
}
@media (max-width: 560px) {
  .hero { padding: 48px 0; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .btn { width: 100%; justify-content: center; }
  .wrap { padding: 0 16px; }
}

/* Waveform demo */
.demo { padding: 8px 0 40px; }
.demo-card { background: var(--surface); border: 1px solid var(--border); border-radius: 22px; padding: 22px 24px 18px; }
.demo-labels { display: flex; justify-content: space-between; font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
#wave { display: block; width: 100%; height: 150px; }

/* Scroll reveal (site.js adds .in) */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
.reveal.in { opacity: 1; transform: none; }

@keyframes float { 50% { translate: 0 -10px; } }
@keyframes pulse { 50% { opacity: .45; box-shadow: 0 0 2px var(--good); } }
@keyframes drift { to { transform: translate(-4%, 6%) scale(1.08); } }
@keyframes shine { 0%, 60% { transform: translateX(-120%); } 100% { transform: translateX(120%); } }
@keyframes eq { 50% { transform: scaleY(.55); } }
@keyframes marquee { to { transform: translateX(-50%); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* VB-CABLE credit */
.credit {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 32px; align-items: center; padding: 36px;
  border-radius: 24px; border: 1px solid var(--border);
  background: radial-gradient(420px 200px at 100% 0%, rgba(34, 211, 238, .12), transparent 70%), var(--surface);
}
.credit .eyebrow { font-size: 12.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--cyan); }
.credit h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; margin: 8px 0 14px; }
.credit p { color: var(--muted); margin-bottom: 10px; }
.credit p b { color: var(--text); }
.credit p a { color: var(--cyan); }
.credit .muted { font-size: 13px; }
.credit-cta { display: flex; flex-direction: column; gap: 10px; }
.credit-cta .btn { justify-content: center; }
@media (max-width: 900px) { .credit { grid-template-columns: 1fr; padding: 24px; } }