:root {
  --bg: #16181D;
  --bg-2: #1B1E24;
  --card: #1F2229;
  --line: #2C3038;
  --text: #ECEDEF;
  --muted: #9AA0AA;
  --accent: #FF7A1A;
  --accent-2: #FFC24A;
  --ink: #1A0E05;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 Inter, "Segoe UI", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px max(16px, calc((100% - 1080px) / 2));
  background: rgba(22, 24, 29, 0.85); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.logo { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; letter-spacing: -0.2px; }
.logo:hover { text-decoration: none; }
.nav nav { display: flex; align-items: center; gap: 22px; }
.nav nav a:not(.btn) { color: var(--muted); font-size: 15px; }
.nav nav a:not(.btn):hover { color: var(--text); text-decoration: none; }

.btn {
  display: inline-block; background: var(--accent); color: var(--ink); font-weight: 700;
  padding: 13px 22px; border-radius: 12px; border: 1px solid var(--accent);
  transition: transform .12s, filter .12s;
}
.btn:hover { text-decoration: none; filter: brightness(1.08); transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--muted); }
.btn.small { padding: 7px 14px; font-size: 14px; border-radius: 10px; }

.hero { position: relative; text-align: center; padding: 96px 16px 88px; overflow: hidden; }
.glow {
  position: absolute; left: 50%; top: 40px; width: 640px; height: 640px; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(255, 122, 26, 0.22), transparent 62%); pointer-events: none;
}
.hero-flame { position: relative; width: 72px; height: 104px; filter: drop-shadow(0 8px 30px rgba(255, 122, 26, 0.45)); }
.hero h1 {
  position: relative; margin: 12px 0 8px; font-size: clamp(56px, 11vw, 96px); line-height: 1; letter-spacing: -3px; font-weight: 800;
  background: linear-gradient(180deg, #fff 30%, #FFD9B8); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { position: relative; max-width: 620px; margin: 0 auto 32px; font-size: clamp(18px, 2.6vw, 22px); color: #C9CCD2; }
.actions { position: relative; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.fine { color: var(--muted); font-size: 14px; margin-top: 18px; }
.fine.center { text-align: center; }

.section { max-width: 1080px; margin: 0 auto; padding: 72px 16px; }
.section h2 { font-size: clamp(28px, 4.4vw, 40px); letter-spacing: -1px; line-height: 1.15; margin: 0 0 28px; text-align: center; }
.eyebrow { color: var(--accent); font-weight: 600; font-size: 14px; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 8px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 26px; }
.card h3 { margin: 12px 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.icon { font-size: 28px; line-height: 1; }

.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.split h2 { text-align: left; }
.split p { color: #C9CCD2; }
.steps { list-style: none; counter-reset: s; margin: 0; padding: 0; display: grid; gap: 14px; }
.steps li {
  counter-increment: s; position: relative; background: var(--card); border: 1px solid var(--line);
  border-radius: 16px; padding: 18px 20px 18px 64px; color: var(--muted);
}
.steps li b { color: var(--text); }
.steps li::before {
  content: counter(s); position: absolute; left: 18px; top: 16px; width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 800; color: var(--ink); background: linear-gradient(135deg, var(--accent-2), var(--accent));
}

.downloads { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; }
.dl {
  display: flex; flex-direction: column; gap: 4px; padding: 20px 22px; border-radius: 16px;
  background: var(--card); border: 1px solid var(--line); color: var(--text); transition: border-color .12s, transform .12s;
}
.dl:hover { text-decoration: none; border-color: var(--accent); transform: translateY(-2px); }
.dl-title { font-weight: 700; }
.dl-title::after { content: " ↓"; color: var(--accent); }
.dl-sub { color: var(--muted); font-size: 14px; }

footer {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 28px max(16px, calc((100% - 1080px) / 2)); border-top: 1px solid var(--line); color: var(--muted); font-size: 14px;
}

@media (max-width: 760px) {
  .nav nav a:not(.btn) { display: none; }
  .hero { padding: 64px 16px 56px; }
  .section { padding: 52px 16px; }
  .split { grid-template-columns: 1fr; gap: 28px; }
  .split h2 { text-align: center; }
}

.btn.disabled { background: var(--card); color: var(--muted); border-color: var(--line); cursor: default; }
.btn.disabled:hover { filter: none; transform: none; }
.dl.disabled { cursor: default; }
.dl.disabled:hover { border-color: var(--line); transform: none; }
.dl.disabled .dl-title::after { content: ""; }