:root {
  --bg-base: #090b10;
  --bg-surface: rgba(18, 22, 31, 0.65);
  --bg-surface-hover: rgba(26, 32, 44, 0.8);
  --text-primary: #f3f5f8;
  --text-secondary: #949eb0;
  --text-muted: #5e6778;
  --accent: #7aa2f7;
  --accent-Subtle: rgba(122, 162, 247, 0.14);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(255, 255, 255, 0.16);
}

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

html, body {
  min-height: 100%;
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  selection-background-color: var(--accent);
}

::selection {
  background: rgba(122, 162, 247, 0.25);
  color: #ffffff;
}

body {
  position: relative;
  overflow-x: hidden;
  display: flex;
  justify-content: center;
}

/* Subtle atmospheric lighting */
.ambient-glow {
  position: fixed;
  top: -25vh;
  left: 50%;
  transform: translateX(-50%);
  width: 90vw;
  max-width: 1100px;
  height: 55vh;
  background: radial-gradient(
    ellipse at center,
    rgba(86, 124, 228, 0.12) 0%,
    rgba(56, 189, 248, 0.04) 45%,
    transparent 75%
  );
  pointer-events: none;
  z-index: 0;
  filter: blur(40px);
}

.grid-overlay {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 30%, black 15%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, black 15%, transparent 80%);
  pointer-events: none;
  z-index: 0;
}

.page-shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1080px;
  min-height: 100vh;
  padding: 2.75rem 2rem 2.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 4rem;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: linear-gradient(135deg, #93b4ff 0%, #4c6ef5 100%);
  box-shadow: 0 0 16px rgba(122, 162, 247, 0.5);
}

.brand-name {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--text-primary);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

/* Main Content */
.main-content {
  display: flex;
  flex-direction: column;
  gap: 4.5rem;
  margin: auto 0;
}

.hero {
  max-width: 760px;
}

.eyebrow {
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.headline {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(2.25rem, 4.8vw, 3.75rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  background: linear-gradient(180deg, #ffffff 0%, #c6d0e3 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lead {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  font-weight: 300;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 640px;
}

/* Pillars Grid */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.pillar-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 1.85rem 1.65rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.pillar-card:hover {
  transform: translateY(-2px);
  background: var(--bg-surface-hover);
  border-color: var(--border-highlight);
}

.pillar-index {
  font-family: 'Plus Jakarta Sans', monospace;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent);
  opacity: 0.85;
}

.pillar-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.pillar-body {
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Footer */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--text-primary);
}

.footer-divider {
  color: var(--text-muted);
  opacity: 0.5;
}

.footer-note {
  letter-spacing: 0.04em;
}

/* Responsive */
@media (max-width: 860px) {
  .pillars {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .page-shell {
    padding: 2rem 1.35rem 1.75rem;
    gap: 3rem;
  }

  .main-content {
    gap: 3rem;
  }
}

@media (max-width: 520px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}