:root {
  --bg: #07090b; --panel: #101317; --line: #20252d; --line-2: #2f3541; --text: #eceff3; --muted: #8b93a1;
  --accent: #6dffb0; --ink: #04130b; --warn: #ffc857;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: var(--text); font: 17px/1.6 var(--sans); -webkit-font-smoothing: antialiased;
  background:
    radial-gradient(900px 520px at 50% -180px, rgba(109, 255, 176, 0.13), transparent 70%),
    linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 100% 56px,
    var(--bg);
  background-attachment: scroll, fixed, scroll;
}
body::before { content: ""; position: fixed; inset: 0; background: linear-gradient(180deg, transparent, var(--bg) 70%); pointer-events: none; z-index: -1; }
a { color: var(--accent); text-underline-offset: 3px; }
h1, h2, h3, p { margin: 0; }
svg { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.top { max-width: 1040px; margin: 0 auto; padding: 22px 24px; display: flex; justify-content: space-between; align-items: center; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 680; font-size: 19px; letter-spacing: -0.02em; }
.brand img { filter: drop-shadow(0 0 12px rgba(109, 255, 176, 0.5)); }
.top nav { display: flex; gap: 22px; font-size: 15px; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover { color: var(--text); }

main { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
.hero { text-align: center; padding: clamp(40px, 9vw, 96px) 0 0; display: grid; justify-items: center; gap: 22px; }
.tag { display: inline-flex; align-items: center; gap: 9px; font: 600 12.500px/1 var(--mono); letter-spacing: 0.09em; text-transform: uppercase; color: var(--accent); border: 1px solid rgba(109, 255, 176, 0.3); border-radius: 99px; padding: 8px 14px; background: rgba(109, 255, 176, 0.05); }
.pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
h1 { font-size: clamp(44px, 9vw, 92px); line-height: 0.98; letter-spacing: -0.045em; font-weight: 720; }
h1 em { font-style: normal; color: var(--accent); text-shadow: 0 0 36px rgba(109, 255, 176, 0.45); }
.lede { max-width: 560px; color: var(--muted); font-size: clamp(17px, 2.200vw, 20px); }

.download { display: grid; justify-items: center; gap: 12px; margin-top: 6px; }
.btn { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 660; border-radius: 14px; padding: 16px 26px; font-size: 18px; transition: transform 0.12s, box-shadow 0.2s; }
.btn svg { width: 20px; height: 20px; }
.btn.primary { background: var(--accent); color: var(--ink); box-shadow: 0 0 0 1px rgba(109, 255, 176, 0.4), 0 10px 44px rgba(109, 255, 176, 0.28); }
.btn.primary:hover { transform: translateY(-1px); box-shadow: 0 0 0 1px rgba(109, 255, 176, 0.6), 0 14px 54px rgba(109, 255, 176, 0.4); }
.btn.off { background: var(--panel); color: var(--muted); box-shadow: 0 0 0 1px var(--line-2); cursor: default; }
.btn:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.alt { font-size: 14px; color: var(--muted); }

.limits { width: min(760px, 100%); text-align: left; margin-top: 14px; border: 1px solid rgba(255, 200, 87, 0.38); background: linear-gradient(180deg, rgba(255, 200, 87, 0.06), rgba(16, 19, 23, 0.9)); border-radius: 18px; padding: clamp(20px, 4vw, 30px); }
.limits h2 { font-size: 20px; letter-spacing: -0.01em; color: var(--warn); }
.limits-lede { color: var(--muted); font-size: 15px; margin-top: 4px; }
.limits ul { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 14px; }
.limits li { font-size: 15px; color: #c4cad4; padding-left: 20px; position: relative; }
.limits li::before { content: ""; position: absolute; left: 0; top: 10px; width: 7px; height: 7px; border-radius: 2px; background: var(--warn); }
.limits b { color: var(--text); font-weight: 620; }
.limits-foot { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line-2); font-size: 14px; color: var(--muted); }

.shot { margin: clamp(48px, 8vw, 88px) auto 0; max-width: 940px; }
.shot img { width: 100%; height: auto; display: block; border-radius: 16px; border: 1px solid var(--line-2); box-shadow: 0 40px 120px rgba(0, 0, 0, 0.7), 0 0 90px rgba(109, 255, 176, 0.08); }

.steps, .facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: clamp(48px, 8vw, 88px); }
.steps div, .facts div { border: 1px solid var(--line); background: var(--panel); border-radius: 16px; padding: 22px; }
.steps span { font: 600 13px/1 var(--mono); color: var(--ink); background: var(--accent); width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center; margin-bottom: 14px; }
h3 { font-size: 17px; font-weight: 640; letter-spacing: -0.01em; margin-bottom: 6px; }
.steps p, .facts p { color: var(--muted); font-size: 15px; }
.facts { margin-top: 16px; }
.facts div { background: none; }

footer { max-width: 1040px; margin: clamp(56px, 9vw, 100px) auto 0; padding: 24px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 14px; color: var(--muted); }
footer a { color: var(--muted); }

@media (max-width: 720px) {
  .steps, .facts { grid-template-columns: 1fr; }
  .top nav { gap: 16px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }