:root {
  color-scheme: dark;
  --background: #0b1016;
  --surface: #151d28;
  --surface-soft: #1a2633;
  --border: #2a3948;
  --text: #f7fafc;
  --secondary: #c7d2dc;
  --muted: #91a0ae;
  --teal: #00caba;
  --orange: #ff6b2c;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--background); }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 85% 8%, rgba(0, 202, 186, .13), transparent 32rem),
    radial-gradient(circle at 10% 70%, rgba(255, 107, 44, .08), transparent 28rem),
    var(--background);
  font-family: var(--font);
  line-height: 1.55;
}

.site-header {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: rgba(11,16,22,.84);
}
.brand { color: var(--text); font-size: .9rem; font-weight: 800; letter-spacing: .16em; text-decoration: none; }
.site-header span { color: var(--muted); }
.page-shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.hero { max-width: 880px; padding: clamp(72px, 12vw, 150px) 0 clamp(72px, 10vw, 120px); }
.eyebrow { margin: 0 0 14px; color: var(--teal); font-size: .78rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
h1 { max-width: 900px; margin: 0; font-size: clamp(2.8rem, 7vw, 6rem); line-height: .98; letter-spacing: -.055em; }
h2 { max-width: 650px; margin: 0; font-size: clamp(2rem, 4vw, 3.35rem); line-height: 1.05; letter-spacing: -.04em; }
.lede { max-width: 760px; margin: 28px 0 0; color: var(--secondary); font-size: clamp(1.08rem, 2vw, 1.35rem); }
.status { display: inline-flex; align-items: center; gap: 10px; margin-top: 34px; padding: 10px 15px; border: 1px solid rgba(0,202,186,.38); border-radius: 999px; background: rgba(0,202,186,.08); font-weight: 700; }
.status span { width: 9px; height: 9px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 16px var(--teal); }
.notice { max-width: 700px; margin: 18px 0 0; color: var(--muted); font-size: .92rem; }
.form-error { margin: 20px 0 0; padding: 12px 14px; border: 1px solid rgba(255,107,44,.55); border-radius: 9px; background: rgba(255,107,44,.09); color: #ffd7c5; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
form { display: grid; gap: 10px; margin-top: 28px; }
label { font-size: .9rem; font-weight: 700; }
input { width: 100%; min-height: 48px; margin-bottom: 10px; padding: 0 14px; border: 1px solid var(--border); border-radius: 9px; background: var(--background); color: var(--text); font: inherit; }
input:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; }
.check { display: flex; align-items: flex-start; gap: 10px; color: var(--secondary); }
.check input { width: 18px; min-height: 18px; margin: 3px 0 0; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 20px; border: 1px solid transparent; border-radius: 9px; font: inherit; font-weight: 800; text-decoration: none; cursor: pointer; }
.primary { background: var(--teal); color: #071311; }
.primary:hover { background: #32dfcf; }
.secondary { border-color: var(--border); color: var(--text); background: rgba(255,255,255,.03); }
.secondary:hover { border-color: var(--teal); }
.card { padding: clamp(24px, 5vw, 48px); border: 1px solid var(--border); border-radius: 16px; background: rgba(21,29,40,.96); box-shadow: 0 24px 80px rgba(0,0,0,.28); }
.summary { margin: 28px 0; padding: 18px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-soft); }
.summary div { display: flex; justify-content: space-between; gap: 20px; }
.summary dt { color: var(--muted); }
.summary dd { margin: 0; font-weight: 700; }
.platforms { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.platforms span { padding: 7px 10px; border: 1px solid var(--border); border-radius: 999px; color: var(--secondary); }
.steps { padding: 0 0 110px; }
.step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 38px; }
.step-grid article { min-height: 230px; padding: 28px; border: 1px solid var(--border); border-radius: 16px; background: linear-gradient(145deg, rgba(26,38,51,.94), rgba(21,29,40,.88)); }
.step-grid strong { color: var(--orange); font-size: .8rem; letter-spacing: .12em; }
.step-grid h3 { margin: 46px 0 8px; font-size: 1.25rem; }
.step-grid p { margin: 0; color: var(--muted); }
footer { padding: 28px clamp(20px, 5vw, 72px); border-top: 1px solid rgba(255,255,255,.08); color: var(--muted); font-size: .84rem; }
@media (max-width: 760px) {
  .page-shell { width: min(100% - 28px, 1120px); }
  .step-grid { grid-template-columns: 1fr; }
  .step-grid article { min-height: 190px; }
  h1 { font-size: clamp(2.7rem, 13vw, 4.6rem); }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; } }