:root {
  --lun-color-blue-900: #1e3a8a;
  --lun-color-blue-700: #1d4ed8;
  --lun-color-blue-600: #2563eb;
  --lun-color-purple-500: #a855f7;
  --lun-color-purple-600: #9333ea;
  --lun-color-emerald-500: #22c55e;
  --lun-color-ink-900: #1e293b;
  --lun-color-ink-600: #475569;
  --lun-color-surface-100: #ffffff;
  --lun-color-surface-200: #f0f4ff;
  --lun-color-border-300: #c7d2fe;

  --lun-color-primary: var(--lun-color-blue-600);
  --lun-color-accent: var(--lun-color-purple-500);
  --lun-color-success: var(--lun-color-emerald-500);
  --lun-color-danger: #ef4444;
  --lun-color-text: var(--lun-color-ink-900);
  --lun-color-muted: var(--lun-color-ink-600);
  --lun-color-surface: var(--lun-color-surface-100);
  --lun-color-surface-alt: var(--lun-color-surface-200);
  --lun-color-border: var(--lun-color-border-300);

  --lun-font-heading: "Montserrat", sans-serif;
  --lun-font-body: "Inter", system-ui, sans-serif;

  --lun-space-1: 0.5rem;
  --lun-space-2: 0.75rem;
  --lun-space-3: 1rem;
  --lun-space-4: 1.5rem;
  --lun-space-5: 2rem;
  --lun-space-6: 3rem;

  --lun-radius-sm: 8px;
  --lun-radius-md: 12px;
  --lun-radius-lg: 16px;
  --lun-radius-pill: 999px;

  --lun-shadow-raised: 0 10px 25px rgba(37, 99, 235, 0.12);
  --lun-shadow-soft: 0 6px 16px rgba(37, 99, 235, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--lun-font-body);
  font-size: 1rem;
  color: var(--lun-color-text);
  background: var(--lun-color-surface-alt);
  line-height: 1.6;
}

img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--lun-color-accent);
  outline-offset: 2px;
}

.lun-container { width: min(1120px, 92vw); margin: 0 auto; }
.lun-section { padding: var(--lun-space-6) 0; }
.lun-section--compact { padding: var(--lun-space-4) 0; }

.lun-heading-1 {
  font-family: var(--lun-font-heading);
  font-size: clamp(2rem, 2.8vw, 2.8rem);
  font-weight: 700;
  margin: 0 0 var(--lun-space-3);
}

.lun-heading-2 {
  font-family: var(--lun-font-heading);
  font-size: clamp(1.5rem, 2.2vw, 2rem);
  font-weight: 700;
  margin: 0 0 var(--lun-space-2);
}

.lun-heading-3 {
  font-family: var(--lun-font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 var(--lun-space-2);
}

.lun-text-muted { color: var(--lun-color-muted); }

.lun-hero {
  background: linear-gradient(135deg, #1e3a8a 0%, #3730a3 50%, #7c3aed 100%);
  color: #ffffff;
  border-bottom: 1px solid var(--lun-color-border);
}

.lun-hero__grid {
  display: grid;
  gap: var(--lun-space-5);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.lun-card {
  background: var(--lun-color-surface);
  border: 1px solid var(--lun-color-border);
  border-radius: var(--lun-radius-lg);
  box-shadow: var(--lun-shadow-raised);
  padding: var(--lun-space-4);
}

.lun-card--soft {
  background: var(--lun-color-surface-alt);
  box-shadow: var(--lun-shadow-soft);
}

.lun-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--lun-space-1);
  padding: 0.35rem 0.85rem;
  border-radius: var(--lun-radius-pill);
  background: var(--lun-color-surface);
  border: 1px solid var(--lun-color-border);
  font-size: 0.875rem;
  font-weight: 500;
}

.lun-grid-2 {
  display: grid;
  gap: var(--lun-space-4);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.lun-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: var(--lun-radius-pill);
  padding: 0.85rem 1.6rem;
  border: 1px solid transparent;
  font-weight: 500;
  background: var(--lun-color-primary);
  color: #ffffff;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  min-height: 44px;
}

.lun-btn--accent { background: var(--lun-color-accent); }
.lun-btn--ghost { background: transparent; color: var(--lun-color-primary); border-color: var(--lun-color-primary); }
.lun-btn:hover { transform: translateY(-1px); box-shadow: var(--lun-shadow-soft); }

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

.lun-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--lun-space-3);
  padding: var(--lun-space-3) 0;
}

.lun-brand {
  font-family: var(--lun-font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--lun-color-primary);
}

.lun-menu { display: flex; align-items: center; gap: var(--lun-space-3); flex-wrap: wrap; }

.lun-breadcrumbs { font-size: 0.875rem; color: var(--lun-color-muted); }
.lun-breadcrumbs a { color: var(--lun-color-primary); }

.lun-table { width: 100%; border-collapse: collapse; border-radius: var(--lun-radius-md); overflow: hidden; }
.lun-table th, .lun-table td { padding: 0.85rem 1rem; border-bottom: 1px solid var(--lun-color-border); text-align: left; }
.lun-table thead { background: var(--lun-color-surface-alt); }
.lun-table tr:nth-child(even) { background: #f8faff; }

.lun-alert { padding: var(--lun-space-3); border-radius: var(--lun-radius-md); border: 1px solid var(--lun-color-border); background: var(--lun-color-surface); }
.lun-alert--success { border-color: rgba(34, 197, 94, 0.3); background: #f0fdf4; }

.lun-accordion { border: 1px solid var(--lun-color-border); border-radius: var(--lun-radius-md); overflow: hidden; }
.lun-accordion__item + .lun-accordion__item { border-top: 1px solid var(--lun-color-border); }
.lun-accordion__trigger { width: 100%; text-align: left; background: var(--lun-color-surface); border: none; padding: var(--lun-space-3); font-weight: 500; cursor: pointer; }
.lun-accordion__panel { padding: 0 var(--lun-space-3) var(--lun-space-3); display: none; }
.lun-accordion__item.lun-is-open .lun-accordion__panel { display: block; }

.lun-list { padding-left: 1.2rem; }

.lun-footer { background: var(--lun-color-blue-900); color: #ffffff; padding: var(--lun-space-5) 0; }
.lun-footer a { color: #ffffff; }

.lun-sticky-cta { position: fixed; bottom: 1rem; left: 50%; transform: translateX(-50%); z-index: 20; display: none; }

@media (max-width: 767px) {
  .lun-sticky-cta { display: block; }
  .lun-menu { flex-direction: column; align-items: flex-start; }
}