:root {
  --bg: #f2f2f2;
  --surface: #ffffff;
  --surface-soft: #f2fbfd;
  --text: #12285f;
  --text-muted: #3f4d73;
  --primary: #12285f;
  --primary-strong: #2581c4;
  --border: #d1ebff;
  --shadow: 0 20px 40px -28px rgba(18, 40, 95, 0.35);
  --radius-lg: 20px;
  --radius-md: 14px;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Avenir Next", "Segoe UI Variable", "Gill Sans", "Trebuchet MS", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 85% 10%, rgba(37, 129, 196, 0.24), transparent 38%),
    radial-gradient(circle at 10% 25%, rgba(18, 40, 95, 0.14), transparent 34%),
    linear-gradient(180deg, #f8fbff 0%, var(--bg) 55%, #fafafa 100%);
  line-height: 1.55;
}

a {
  color: inherit;
}

.page-shell {
  width: min(1100px, 92vw);
  margin: 0 auto;
  padding: var(--space-6) 0 var(--space-5);
}

.hero,
.panel,
.site-footer {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero {
  padding: clamp(1.75rem, 2.5vw, 3rem);
  margin-bottom: var(--space-5);
  animation: rise-in 520ms ease-out;
}

.eyebrow {
  margin: 0 0 var(--space-1);
  font-size: 0.8rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.2;
  font-family: "Rockwell", "Bookman Old Style", "Avenir Next", serif;
}

h1 {
  font-size: clamp(2rem, 5.5vw, 3.4rem);
}

.lead {
  margin: var(--space-3) 0 0;
  max-width: 65ch;
  color: var(--text-muted);
  font-size: clamp(1rem, 2vw, 1.2rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.button {
  text-decoration: none;
  border: 0;
  border-radius: 999px;
  padding: 0.72rem 1.25rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
  box-shadow: 0 10px 22px -14px rgba(18, 40, 95, 0.9);
}

.button-secondary {
  border: 1px solid #b9ddfe;
  background: #f2fbfd;
  color: #12285f;
}

.panel {
  padding: clamp(1.25rem, 2.2vw, 2rem);
  margin-bottom: var(--space-4);
  animation: rise-in 620ms ease-out;
}

.panel p {
  margin: var(--space-2) 0 0;
  color: var(--text-muted);
}

.card-grid,
.architecture-grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.card-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.card {
  text-decoration: none;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.card-static {
  display: block;
}

.card:hover,
.card:focus-visible {
  transform: translateY(-4px);
  border-color: #65b4ff;
  box-shadow: 0 14px 30px -24px rgba(18, 40, 95, 0.55);
}

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

.card p {
  margin-top: var(--space-2);
}

.card-link {
  display: inline-block;
  margin-top: var(--space-3);
  color: var(--primary);
  font-weight: 700;
}

.copy-row {
  margin-top: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.copy-row code {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.36rem 0.56rem;
  font-size: 0.95rem;
}

.copy-button {
  border: 1px solid #b9ddfe;
  background: #ffffff;
  color: var(--primary);
  border-radius: 999px;
  padding: 0.38rem 0.72rem;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 160ms ease, transform 160ms ease;
}

.copy-button:hover,
.copy-button:focus-visible {
  transform: translateY(-1px);
  border-color: #65b4ff;
}

.copy-status {
  min-height: 1.25rem;
  margin-top: var(--space-2);
  font-size: 0.92rem;
}

.architecture-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.architecture-item {
  background: #f8fbff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}

.architecture-item p {
  margin-top: var(--space-2);
}

.site-footer {
  padding: var(--space-3) var(--space-4);
  font-size: 0.95rem;
  color: #3f4d73;
  animation: rise-in 720ms ease-out;
}

.site-footer p {
  margin: 0;
}

a:focus-visible {
  outline: 3px solid rgba(18, 40, 95, 0.35);
  outline-offset: 3px;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding-top: var(--space-4);
  }

  .hero,
  .panel,
  .site-footer {
    border-radius: 16px;
  }

  .button {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}