:root {
  --bg: #08080b;
  --panel: rgba(255, 255, 255, 0.055);
  --panel-strong: rgba(255, 255, 255, 0.08);
  --text: #f7f7fb;
  --muted: #a8a8b5;
  --line: rgba(255, 255, 255, 0.1);
  --accent: #9b8cff;
  --accent-2: #65d4ff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% -10%, rgba(155, 140, 255, .18), transparent 32%),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.background-glow {
  position: fixed;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  opacity: .16;
  z-index: -1;
}
.glow-one { background: var(--accent); top: 22%; left: -180px; }
.glow-two { background: var(--accent-2); right: -180px; top: 62%; }

.container { width: min(1060px, 92%); margin: 0 auto; }
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 26px 0;
}
.brand {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: -1px;
}
.brand span { color: var(--accent); }
.youtube-mini {
  color: var(--muted);
  font-size: 14px;
  transition: .2s ease;
}
.youtube-mini:hover { color: var(--text); }

.hero { padding: 84px 0 54px; text-align: center; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  border-radius: 999px;
  color: #d9d9e4;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
}
.badge span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #69ef9d;
  box-shadow: 0 0 15px #69ef9d;
}

h1 {
  margin-top: 20px;
  font-size: clamp(48px, 8vw, 92px);
  line-height: .96;
  letter-spacing: -0.065em;
}
h1 span {
  background: linear-gradient(90deg, #c9c1ff, #8adfff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.subtitle {
  max-width: 620px;
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.app-card {
  max-width: 860px;
  margin: 42px auto 0;
  padding: 18px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
  text-align: left;
  background: linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.045));
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 24px 70px rgba(0,0,0,.35);
  backdrop-filter: blur(16px);
}
.app-icon {
  width: 70px;
  height: 70px;
  display: grid;
  place-items: center;
  border-radius: 19px;
  font-size: 26px;
  font-weight: 900;
  background: linear-gradient(135deg, #1b1930, #121f2a);
  border: 1px solid rgba(255,255,255,.12);
}
.app-label, .section-kicker {
  font-size: 11px;
  color: #8e8e9e;
  letter-spacing: .14em;
  font-weight: 800;
}
.app-info h2 { margin-top: 5px; font-size: 22px; }
.app-info p { margin-top: 5px; color: var(--muted); font-size: 13px; }
.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: 14px;
  background: var(--text);
  color: #0a0a0d;
  font-weight: 800;
  font-size: 14px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.download-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(255,255,255,.14); }
.download-icon { font-size: 18px; line-height: 1; }
.install-note {
  margin: 14px auto 0;
  color: #777784;
  font-size: 12px;
  line-height: 1.6;
  max-width: 700px;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 24px;
}
.info-card {
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 20px;
  min-height: 210px;
}
.card-icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  margin-bottom: 28px;
  background: var(--panel-strong);
  color: #d7d2ff;
}
.info-card h3 { font-size: 18px; }
.info-card p { margin-top: 9px; color: var(--muted); line-height: 1.65; font-size: 14px; }
.text-link {
  display: inline-block;
  margin-top: 14px;
  color: #d9d4ff;
  font-size: 13px;
  word-break: break-word;
}
.text-link:hover { text-decoration: underline; }

.steps {
  margin: 72px 0 36px;
  padding: 30px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 30px;
}
.steps h2 { margin-top: 8px; font-size: 32px; letter-spacing: -.04em; }
.step-list { display: grid; gap: 12px; }
.step {
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
  color: var(--muted);
  font-size: 14px;
}
.step:last-child { border-bottom: 0; }
.step strong { color: var(--text); font-size: 12px; letter-spacing: .08em; }
.step b { color: var(--text); }

footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 0 38px;
  color: #676773;
  font-size: 12px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translate(-50%, 20px);
  opacity: 0;
  padding: 11px 15px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #17171d;
  color: #ededf2;
  font-size: 13px;
  transition: .25s ease;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 760px) {
  .hero { padding: 66px 0 44px; }
  .app-card { grid-template-columns: auto 1fr; }
  .download-btn { grid-column: 1 / -1; justify-content: center; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}

@media (max-width: 460px) {
  h1 { font-size: 54px; }
  .subtitle { font-size: 15px; }
  .app-icon { width: 58px; height: 58px; }
  .app-info h2 { font-size: 18px; }
  .app-details { padding: 24px; }
  .details-header h2 { font-size: 26px; }
  .features-grid { grid-template-columns: 1fr; }
  .steps { padding: 22px; }
}