:root {
  --bg: #0a0c11;
  --panel: #12151d;
  --panel-2: #171b25;
  --line: #232838;
  --txt: #e8ecf4;
  --muted: #8b93a7;
  --accent: #4f8cff;
  --green: #22c55e;
  --amber: #f59e0b;
  --red: #ef4444;
  --violet: #a78bfa;
  --radius: 14px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 50% -10%, #16203a 0%, var(--bg) 60%);
  color: var(--txt);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  min-height: 100vh;
}
a { color: var(--accent); }
.wrap { max-width: 960px; margin: 0 auto; padding: 48px 20px 80px; }
.brand { font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
h1 { font-size: clamp(28px, 5vw, 40px); line-height: 1.15; margin: 10px 0 12px; letter-spacing: -.02em; }
.lede { color: var(--muted); max-width: 60ch; margin: 0 0 36px; }
.offers { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.offer {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; display: flex; flex-direction: column; position: relative;
}
.offer.featured { border-color: #2f4d8f; box-shadow: 0 0 0 1px #2f4d8f33, 0 20px 40px -24px #4f8cff66; }
.tag {
  position: absolute; top: -11px; left: 26px; background: var(--accent); color: #07101f;
  font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px;
}
.offer h2 { font-size: 17px; margin: 0 0 4px; font-weight: 600; }
.price { font-size: 34px; font-weight: 700; letter-spacing: -.03em; margin: 12px 0 2px; }
.price small { font-size: 14px; font-weight: 500; color: var(--muted); letter-spacing: 0; }
.detail { color: var(--muted); font-size: 14px; margin: 0 0 20px; }
ul.perks { list-style: none; padding: 0; margin: 0 0 24px; color: var(--muted); font-size: 14px; }
ul.perks li { padding: 5px 0 5px 24px; position: relative; }
ul.perks li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 700; }
button.cta {
  margin-top: auto; width: 100%; border: 0; border-radius: 10px; padding: 14px 18px;
  font: inherit; font-weight: 600; cursor: pointer; background: var(--panel-2);
  color: var(--txt); border: 1px solid var(--line); transition: .15s;
}
button.cta:hover:not(:disabled) { background: #1e2432; }
button.cta.primary { background: var(--accent); color: #07101f; border-color: transparent; }
button.cta.primary:hover:not(:disabled) { background: #6ba0ff; }
button.cta:disabled { opacity: .55; cursor: progress; }
.field { margin: 0 0 26px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 7px; }
.field input {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--panel); color: var(--txt); font: inherit;
}
.field input:focus { outline: 2px solid #2f4d8f; outline-offset: 0; border-color: transparent; }
.note { margin-top: 28px; color: var(--muted); font-size: 13px; }
.err { color: #fca5a5; background: #ef44441a; border: 1px solid #ef444440; padding: 12px 14px; border-radius: 10px; margin-bottom: 20px; }
.hidden { display: none !important; }