:root {
  --bg: #0f172a;
  --accent: #6366f1;
  --accent-soft: #eef2ff;
  --text: #1e293b;
  --muted: #475569;
  --surface: #ffffff;
  --border: #e2e8f0;
  --radius: 16px;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
  color: var(--text);
  font-size: 18px;
  line-height: 1.6;
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.site-header {
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--bg);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
}

.nav-links a:hover {
  color: var(--accent);
}

.hero {
  padding: 6rem 0 4rem;
}

.hero .container {
  display: grid;
  gap: 2.5rem;
  align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero p {
  color: var(--muted);
  margin-bottom: 2rem;
}

.cta {
  display: inline-block;
  background-color: var(--accent);
  color: white;
  padding: 0.9rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.25);
}

.hero-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
  border: 1px solid var(--border);
}

.status-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.status-value {
  font-size: 2.8rem;
  font-weight: 700;
  margin: 0;
}

.status-details {
  color: var(--muted);
}

.status-genuine {
  color: #16a34a;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background-color: var(--surface);
}

.steps {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 2rem;
}

.step {
  background-color: rgba(99, 102, 241, 0.06);
  border-radius: var(--radius);
  padding: 1.75rem;
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.section h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  margin-bottom: 1.5rem;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1.5rem;
}

.feature-list li {
  background-color: rgba(99, 102, 241, 0.08);
  border-left: 4px solid var(--accent);
  padding: 1.5rem;
  border-radius: 12px;
}

.verifier-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: start;
}

.verifier-form {
  display: grid;
  gap: 1rem;
  background-color: var(--surface);
  border-radius: var(--radius);
  padding: 1.75rem;
  border: 1px solid var(--border);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.verifier-form label {
  font-weight: 600;
}

.verifier-form input {
  padding: 0.9rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 1rem;
}

.verifier-form button {
  background-color: var(--accent);
  color: white;
  border: none;
  padding: 0.9rem 1.2rem;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.verifier-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(99, 102, 241, 0.3);
}

.verifier-status {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.75rem;
  border: 1px solid var(--border);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.verifier-status h3 {
  margin-top: 0;
}

dl {
  margin: 0;
  display: grid;
  gap: 1.2rem;
}

dl div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 0.5rem;
}

dl dt {
  font-weight: 600;
  color: var(--muted);
}

dl dd {
  margin: 0;
}

.site-footer {
  padding: 2rem 0;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 600px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding-top: 5rem;
  }

  dl div {
    grid-template-columns: 1fr;
  }
}