:root {
  --bg: #0b0d12;
  --bg-alt: #12151d;
  --card: #161a24;
  --border: #262b38;
  --text: #e7e9ee;
  --text-dim: #9aa1b2;
  --accent: #ffb020;
  --accent-dim: #7a5714;
  --radius: 14px;
  --max-width: 960px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  line-height: 1.55;
}

img { max-width: 100%; }

a { color: var(--accent); }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

header.site {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 13, 18, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  color: var(--text);
}

.brand .logo {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #14161c;
  font-weight: 800;
}

nav.main {
  display: flex;
  overflow-x: auto;
  scrollbar-width: none;
}

nav.main::-webkit-scrollbar { display: none; }

nav.main a {
  flex: 0 0 auto;
  color: var(--text-dim);
  text-decoration: none;
  margin-left: 1.25rem;
  font-size: 0.92rem;
  white-space: nowrap;
}

nav.main a:first-child { margin-left: 0; }

nav.main a:hover { color: var(--text); }

.hero {
  padding: 4.5rem 0 3rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin: 0 0 0.8rem;
}

.hero p.lead {
  color: var(--text-dim);
  font-size: 1.15rem;
  max-width: 640px;
  margin: 0 auto 1.8rem;
}

.hero .cta-row {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  font-size: 0.95rem;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn.primary {
  background: var(--accent);
  color: #17130a;
  border-color: var(--accent);
}

.btn.primary:hover { transform: translateY(-1px); }

section { padding: 3rem 0; border-top: 1px solid var(--border); }
section h2 { font-size: 1.6rem; margin-bottom: 0.3rem; }
section p.sub { color: var(--text-dim); margin-top: 0; margin-bottom: 1.8rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
}

.card h3 { margin-top: 0; font-size: 1.05rem; }
.card p { color: var(--text-dim); margin-bottom: 0; font-size: 0.93rem; }

.claim-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 635px;
  margin: 0 auto;
  text-align: center;
}

.claim-panel h3 {
  margin-top: 0;
  font-size: 1.25rem;
}

.claim-panel .hint {
  color: var(--text-dim);
  font-size: 1rem;
  margin-top: 0;
}

.check-steps {
  text-align: left;
  color: var(--text-dim);
  font-size: 1.05rem;
  margin: 1rem 0;
  padding-left: 1.3rem;
}

.check-steps li { margin-bottom: 0.5rem; }
.check-steps li:last-child { margin-bottom: 0; }
.check-steps strong { color: var(--text); }
.check-steps code { word-break: break-all; }

.contract-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.85rem;
  word-break: break-all;
}

.contract-box dt { color: var(--text-dim); margin-top: 0.7rem; }
.contract-box dt:first-child { margin-top: 0; }
.contract-box dd { margin: 0.15rem 0 0; color: var(--text); }

details.faq {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1.2rem;
  margin-bottom: 0.7rem;
}

details.faq summary {
  cursor: pointer;
  font-weight: 600;
}

details.faq p { color: var(--text-dim); margin-bottom: 0; }

footer.site {
  border-top: 1px solid var(--border);
  padding: 2.2rem 0;
  color: var(--text-dim);
  font-size: 0.85rem;
  text-align: center;
}

footer.site a { color: var(--text-dim); margin: 0 0.5rem; }
footer.site a:hover { color: var(--accent); }

code { font-family: "Cascadia Code", Consolas, monospace; font-size: 0.92em; }

@media (max-width: 640px) {
  header.site .wrap {
    gap: 0.6rem;
    padding-top: 0.7rem;
    padding-bottom: 0.7rem;
  }

  .brand { font-size: 1rem; }
  .brand .logo { width: 28px; height: 28px; }

  nav.main a { margin-left: 1rem; font-size: 0.85rem; }

  .hero { padding: 2.8rem 0 2rem; }
  section { padding: 2.2rem 0; }

  .claim-panel { padding: 1.4rem; }

  .cta-row .btn { width: 100%; text-align: center; }
}