*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(135deg, #0f172a, #020617);
  color: #0f172a;
  line-height: 1.6;
}

.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 16px;
}

.site-header {
  max-width: 900px;
  margin: 0 auto 16px auto;
  padding: 16px 20px;
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.9);
  color: #e5e7eb;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.logo-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-circle {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 20px;
  background: radial-gradient(circle at 30% 30%, #38bdf8, #0ea5e9, #0369a1);
  color: #f9fafb;
  box-shadow: 0 10px 25px rgba(56, 189, 248, 0.35);
}

.site-name {
  font-size: 1.25rem;
  font-weight: 600;
}

.site-tagline {
  font-size: 0.875rem;
  color: #9ca3af;
}

.content {
  flex: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 12px 0 24px 0;
}

.card {
  background: #f9fafb;
  border-radius: 16px;
  padding: 18px 20px;
  margin-bottom: 14px;
  box-shadow:
    0 18px 40px rgba(15, 23, 42, 0.35),
    0 0 0 1px rgba(148, 163, 184, 0.35);
}

.card h2,
.card h3 {
  margin-bottom: 8px;
  color: #0f172a;
}

.card h2 {
  font-size: 1.4rem;
}

.card h3 {
  font-size: 1.1rem;
}

.card p {
  margin-bottom: 8px;
  color: #111827;
  font-size: 0.95rem;
}

.card ul {
  margin-left: 18px;
  margin-bottom: 4px;
}

.card li {
  margin-bottom: 4px;
  font-size: 0.95rem;
}

.muted {
  font-size: 0.85rem;
  color: #6b7280;
}

.highlight {
  margin-top: 4px;
  padding: 9px 11px;
  border-radius: 10px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  font-size: 0.9rem;
  color: #1e3a8a;
}

.contact-block {
  padding: 10px 12px;
  border-radius: 12px;
  background: #eef2ff;
  border: 1px solid #c7d2fe;
  font-size: 0.93rem;
}

.site-footer {
  max-width: 900px;
  margin: auto;
  margin-top: 0;
  padding-top: 8px;
  padding-bottom: 4px;
  text-align: center;
  font-size: 0.8rem;
  color: #9ca3af;
}

/* Responsive */
@media (max-width: 640px) {
  .site-header {
    padding: 14px 16px;
  }

  .card {
    padding: 16px 14px;
  }
}