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

:root {
  --bg-base: #08060c;
  --bg-elevated: rgba(255, 255, 255, 0.03);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --plum-900: #1e0a2e;
  --plum-700: #5b21b6;
  --violet-glow: #a855f7;
  --lavender: #e9d5ff;
  --text-primary: #f8f4fc;
  --text-secondary: rgba(248, 244, 252, 0.72);
  --text-tertiary: rgba(248, 244, 252, 0.45);
  --font-display: 'Fraunces', Georgia, serif;
  --font-ui: 'Plus Jakarta Sans', system-ui, sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3.5rem;
  --radius-sm: 999px;
  --radius-md: 1rem;
  --max-width: 36rem;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  font-weight: 400;
  color: var(--text-primary);
  background-color: var(--bg-base);
  line-height: 1.65;
}

.skip-link {
  position: absolute;
  left: var(--space-md);
  top: var(--space-md);
  padding: var(--space-xs) var(--space-sm);
  background: var(--lavender);
  color: var(--bg-base);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0.375rem;
  transform: translateY(-200%);
  transition: transform 0.2s var(--ease-out);
  z-index: 100;
}

.skip-link:focus {
  transform: translateY(0);
  outline: 2px solid var(--violet-glow);
  outline-offset: 2px;
}

/* Ambient background */
.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.ambient::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 60% at 50% -15%, rgba(91, 33, 182, 0.35), transparent 55%),
    radial-gradient(ellipse 70% 50% at 100% 50%, rgba(168, 85, 247, 0.12), transparent 50%),
    radial-gradient(ellipse 60% 40% at 0% 80%, rgba(139, 92, 246, 0.1), transparent 45%),
    linear-gradient(180deg, #0f0818 0%, var(--bg-base) 45%, #050308 100%);
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
}

.orb-a {
  width: min(480px, 70vw);
  height: min(480px, 70vw);
  top: -12%;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(168, 85, 247, 0.5) 0%, transparent 70%);
}

.orb-b {
  width: min(320px, 50vw);
  height: min(320px, 50vw);
  bottom: 5%;
  right: -8%;
  background: radial-gradient(circle, rgba(91, 33, 182, 0.45) 0%, transparent 70%);
}

.grain {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Layout */
.shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  max-width: calc(var(--max-width) + 3rem);
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md) var(--space-xl);
  display: flex;
  flex-direction: column;
}

.top {
  margin-bottom: var(--space-xl);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius-md);
  transition: opacity 0.2s ease;
}

.logo:hover {
  opacity: 0.85;
}

.logo:focus-visible {
  outline: 2px solid var(--violet-glow);
  outline-offset: 4px;
}

.logo-mark {
  flex-shrink: 0;
}

.logo-type {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-secondary);
}

.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-bottom: var(--space-lg);
}

@media (prefers-reduced-motion: no-preference) {
  .hero > * {
    animation: rise 0.9s var(--ease-out) both;
  }

  .eyebrow { animation-delay: 0.05s; }
  .title { animation-delay: 0.12s; }
  .lead { animation-delay: 0.2s; }
  .body { animation-delay: 0.28s; }
  .pillars { animation-delay: 0.36s; }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.eyebrow {
  margin: 0 0 var(--space-md);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet-glow);
}

.title {
  margin: 0 0 var(--space-lg);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.75rem, 8vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.title-line {
  display: block;
}

.title-line--soft {
  font-weight: 500;
  font-style: italic;
  color: var(--text-secondary);
}

.lead {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.125rem, 2.5vw, 1.3125rem);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  max-width: 32ch;
}

.body p {
  margin: 0;
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 42ch;
}

.pillars {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin: var(--space-lg) 0 0;
  padding: 0;
  list-style: none;
}

.pillars li {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.4rem 0.85rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(8px);
}

.footer {
  margin-top: auto;
  padding-top: var(--space-lg);
}

.footer p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  letter-spacing: 0.01em;
}

@media (min-width: 640px) {
  .shell {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  .hero {
    padding-bottom: 4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero > * {
    animation: none;
  }
}