* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #0F1115;
  --surface: #171A21;
  --surface-2: #1E222B;
  --border: #2A2F3A;
  --accent: #7C5CFF;
  --accent-hi: #9179FF;
  --text: #E8EAED;
  --dim: #9AA3B2;
  --muted: #7A8494;
  --success: #3DDC97;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent-hi); }

.nav {
  position: sticky; top: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 40px;
  background: rgba(15, 17, 21, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.logo img { width: 32px; height: 32px; }
.badge { padding: 2px 8px; background: var(--surface-2); color: var(--accent); border-radius: 8px; font-size: 11px; font-weight: 600; }
.nav nav { display: flex; gap: 28px; align-items: center; }
.nav nav a { color: var(--dim); font-size: 14px; }
.nav nav a:hover { color: var(--text); }
.btn-mini { padding: 8px 16px; background: var(--accent); color: white !important; border-radius: 8px; font-weight: 600; }
.btn-mini:hover { background: var(--accent-hi); }

.hero {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  max-width: 1280px; margin: 0 auto; padding: 80px 40px;
  align-items: center;
}
.hero-content h1 {
  font-size: 52px; font-weight: 800; line-height: 1.1; letter-spacing: -1px;
  margin-bottom: 24px;
}
.accent { color: var(--accent); }
.hero-sub {
  font-size: 17px; color: var(--dim); margin-bottom: 32px; line-height: 1.7;
}
.hero-sub b { color: var(--text); }
.hero-btns { display: flex; gap: 14px; margin-bottom: 20px; }
.btn-primary {
  display: inline-block; padding: 14px 32px;
  background: var(--accent); color: white !important;
  border-radius: 10px; font-weight: 600; font-size: 15px;
  transition: all .2s;
}
.btn-primary:hover { background: var(--accent-hi); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(124, 92, 255, 0.3); }
.btn-secondary {
  display: inline-block; padding: 14px 32px;
  background: var(--surface); color: var(--text) !important;
  border: 1px solid var(--border); border-radius: 10px;
  font-weight: 600; font-size: 15px;
}
.btn-secondary:hover { background: var(--surface-2); }
.hero-meta { color: var(--muted); font-size: 13px; }
.hero-img img {
  width: 100%; border-radius: 16px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border);
}

.features { max-width: 1280px; margin: 0 auto; padding: 80px 40px; }
.section-title { font-size: 36px; font-weight: 700; text-align: center; margin-bottom: 12px; letter-spacing: -0.5px; }
.section-sub { color: var(--dim); text-align: center; margin-bottom: 56px; font-size: 15px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 26px; transition: all .2s;
}
.card:hover { background: var(--surface-2); transform: translateY(-2px); border-color: var(--accent); }
.card-icon { font-size: 32px; margin-bottom: 14px; }
.card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.card p { color: var(--dim); font-size: 14px; line-height: 1.6; }

.install { background: var(--surface); padding: 80px 40px; }
.install .section-title, .install .section-sub { max-width: 800px; margin-left: auto; margin-right: auto; }
.steps {
  max-width: 900px; margin: 0 auto; display: grid; gap: 20px;
}
.step {
  display: flex; gap: 24px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 14px; padding: 26px; align-items: flex-start;
}
.step-num {
  width: 44px; height: 44px; flex-shrink: 0;
  background: var(--accent); color: white; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 700;
}
.step h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.step p { color: var(--dim); font-size: 14px; }
.req {
  max-width: 900px; margin: 32px auto 0; padding: 16px 22px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
  color: var(--dim); font-size: 13px; text-align: center;
}
.req b { color: var(--text); }

.download { max-width: 900px; margin: 0 auto; padding: 80px 40px; text-align: center; }
.dl-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 32px;
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  margin-bottom: 20px; text-align: left;
}
.dl-name { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.dl-size { color: var(--dim); font-size: 13px; }
.btn-lg { padding: 16px 40px; font-size: 16px; }
.mirror { color: var(--muted); font-size: 13px; }

footer {
  border-top: 1px solid var(--border); padding: 32px 40px;
  margin-top: 40px;
}
.foot-content {
  max-width: 1280px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  color: var(--muted); font-size: 13px;
}
.foot-links { display: flex; gap: 24px; }
.foot-links a { color: var(--dim); }
.foot-links a:hover { color: var(--accent); }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding: 60px 24px; gap: 40px; }
  .hero-content h1 { font-size: 36px; }
  .nav { padding: 14px 20px; }
  .nav nav { gap: 16px; }
  .nav nav a { font-size: 13px; }
  .dl-box { flex-direction: column; text-align: center; }
}