:root { color-scheme: dark; }
* { box-sizing: border-box; }
html, body { margin: 0; background: #0c0c0c; color: #f4f4f5; font-family: Inter, ui-sans-serif, system-ui, sans-serif; }
body { padding-bottom: 84px; }
a { color: inherit; text-decoration: none; }
.nav {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; gap: 16px;
  padding: 16px 24px;
  background: rgba(12, 12, 12, 0.92);
  border-bottom: 1px solid #1f1f1f;
}
.brand { font-weight: 800; letter-spacing: -0.04em; font-size: 1.15rem; }
.nav-note { margin: 0 auto 0 8px; color: #737373; font-size: 0.82rem; letter-spacing: 0.12em; text-transform: uppercase; }
.btn {
  border: 0; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 18px; border-radius: 999px;
  background: #f4f4f5; color: #0a0a0a;
  font: inherit; font-weight: 800; letter-spacing: -0.02em;
}
.btn.big { padding: 16px 28px; font-size: 1.05rem; }
.hero, .steps { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.hero { padding: 64px 0 20px; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 28px; align-items: center; }
.kicker { margin: 0 0 10px; color: #737373; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; }
h1 { margin: 0 0 12px; font-size: clamp(3.2rem, 7vw, 5.6rem); line-height: 0.9; letter-spacing: -0.06em; }
.lede { max-width: 36ch; color: #a3a3a3; font-size: 1.05rem; line-height: 1.5; }
.wallets { margin: 14px 0 0; color: #737373; font-size: 0.88rem; }
.card-stage { display: grid; place-items: center; }
.visa-card {
  width: min(380px, 100%); aspect-ratio: 1.6 / 1; padding: 22px; border-radius: 22px;
  background: linear-gradient(145deg, #2a2a2a, #111);
  border: 1px solid #3a3a3a;
  display: flex; flex-direction: column; justify-content: space-between;
  box-shadow: 0 30px 80px rgba(0,0,0,0.45);
}
.visa-top, .visa-bot { display: flex; justify-content: space-between; font-weight: 700; }
.visa-lock { margin: 0; color: #a3a3a3; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.8rem; }
.reasons {
  width: min(1120px, calc(100% - 40px)); margin: 28px auto;
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid #2a2a2a; border-bottom: 1px solid #2a2a2a;
}
.reasons article { padding: 26px 22px; }
.reasons article + article { border-left: 1px solid #2a2a2a; }
.reasons h2 { margin: 0 0 8px; letter-spacing: -0.04em; font-size: 1.2rem; }
.reasons p, .steps li span { color: #a3a3a3; line-height: 1.5; }
.steps { padding: 48px 0 24px; }
.steps ol { list-style: none; margin: 12px 0 22px; padding: 0; }
.steps li { display: grid; grid-template-columns: 64px 1fr; gap: 12px; padding: 16px 0; border-top: 1px solid #2a2a2a; font-size: 1.15rem; }
.steps strong { color: #737373; font-size: 0.8rem; }
.find { width: min(1120px, calc(100% - 40px)); margin: 0 auto; padding: 12px 0 36px; }
.find h2 { margin: 0 0 8px; letter-spacing: -0.04em; }
.find ul { list-style: none; margin: 16px 0 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; }
.find li { padding: 16px 0; border-top: 1px solid #2a2a2a; }
.find strong { display: block; margin-bottom: 4px; }
.find span { color: #a3a3a3; line-height: 1.45; }
@media (max-width: 800px) { .find ul { grid-template-columns: 1fr; } }
.dock {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 6;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 20px;
  background: #111; border-top: 1px solid #2a2a2a;
}
.dock p { margin: 0; color: #a3a3a3; }
.sheet {
  position: fixed; inset: 0; z-index: 20;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
  background: rgba(0, 0, 0, 0.78);
  overflow: auto;
}
.sheet[hidden] { display: none; }
.sheet-card {
  width: min(360px, 100%);
  max-height: calc(100dvh - 32px);
  overflow: auto;
  margin: auto;
  background: #161616;
  border-radius: 22px;
  padding: 22px 18px 14px;
  position: relative;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
}
.sheet-x {
  position: absolute; top: 10px; right: 10px;
  width: 32px; height: 32px; border: 0; border-radius: 50%;
  background: transparent; color: #a3a3a3; font-size: 20px; cursor: pointer;
}
.sheet-x:hover { color: #fff; }
.sheet-card h2 { margin: 0 0 6px; font-size: 1.7rem; letter-spacing: -0.05em; line-height: 1; }
.sub, .sheet-status { margin: 0; color: #a3a3a3; font-size: 0.92rem; }
.sheet-list { display: grid; gap: 8px; margin-top: 16px; }
.sheet-list button {
  display: grid; grid-template-columns: 36px 1fr; gap: 12px; align-items: center;
  text-align: left; padding: 10px 12px; border-radius: 14px;
  border: 1px solid #2a2a2a; background: #0c0c0c; color: #fff;
  font: inherit; cursor: pointer;
}
.sheet-list button:hover { border-color: #f4f4f5; }
.sheet-list strong { display: block; font-size: 0.95rem; letter-spacing: -0.02em; }
.sheet-list small { display: block; margin-top: 2px; color: #737373; font-size: 0.78rem; }
.mark {
  width: 36px; height: 36px; border-radius: 10px;
  display: grid; place-items: center;
  background: #f4f4f5; color: #0a0a0a;
  font-size: 0.72rem; font-weight: 800; letter-spacing: -0.04em;
}
.sheet-status { min-height: 1.2em; margin-top: 12px; }
@media (max-width: 800px) {
  .hero, .reasons { grid-template-columns: 1fr; }
  .reasons article + article { border-left: 0; border-top: 1px solid #2a2a2a; }
  .nav-note { display: none; }
}