:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --border: #2d3a4d;
  --text: #e7ecf3;
  --muted: #8b9cb3;
  --accent: #3b82f6;
  --danger: #ef4444;
  --ok: #22c55e;
  --warn: #f59e0b;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  font-size: 1.25rem;
}
.logo-mark { display: block; }
.header nav a, .link-btn {
  color: var(--muted);
  text-decoration: none;
  margin-left: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
}
.header nav a:hover, .link-btn:hover { color: var(--text); }

.container { max-width: 960px; margin: 0 auto; padding: 1.5rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
}
.card.narrow { max-width: 420px; margin: 2rem auto; }

h1 { margin: 0 0 1rem; font-size: 1.5rem; }
h2 { font-size: 1.1rem; margin: 1.5rem 0 0.75rem; }
h3 { font-size: 1rem; margin: 0 0 0.5rem; }

.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.muted { color: var(--muted); }
.error { color: var(--danger); }
.warn { color: var(--warn); }

label { display: block; margin-bottom: 1rem; }
input, textarea {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
}
textarea { font-family: monospace; font-size: 0.8rem; }

.btn, button {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: none;
  background: var(--accent);
  color: white;
  text-decoration: none;
  cursor: pointer;
  font: inherit;
}
.btn.secondary { background: var(--border); margin-left: 0.5rem; }
button.danger, .btn.danger { background: var(--danger); }
button.small { padding: 0.25rem 0.5rem; font-size: 0.875rem; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.75rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
}
.badge-active { background: #14532d; color: #86efac; }
.badge-revoked { background: #450a0a; color: #fca5a5; }
.badge-pending { background: #422006; color: #fcd34d; }
.badge-error { background: #450a0a; color: #fca5a5; }

.meta { display: grid; grid-template-columns: auto 1fr; gap: 0.25rem 1rem; }
.meta dt { color: var(--muted); }

.delivery-block {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
}
.qr { max-width: 220px; background: white; padding: 8px; border-radius: 4px; }

.landing-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(59, 130, 246, 0.18), transparent),
    var(--bg);
}

.landing {
  text-align: center;
  padding: 2rem 1.5rem;
}

.landing-logo {
  display: block;
  margin: 0 auto 1.5rem;
}

.landing-title {
  margin: 0 0 0.5rem;
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.landing-tagline {
  margin: 0 0 2rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.landing-admin-link {
  display: inline-block;
  padding: 0.625rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s, border-color 0.15s;
}

.landing-admin-link:hover {
  color: var(--text);
  border-color: var(--accent);
}