* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--type-body);
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.65;
  min-height: 100vh;
  position: relative;
  --motif-glow: var(--page-accent-glow);
  --motif-soft: var(--page-accent-soft);
  --motif-core: var(--page-accent);
}

body[data-motif='wave'] {
  --motif-glow: color-mix(in srgb, var(--aqua-glow) 65%, var(--lav-glow) 35%);
  --motif-soft: color-mix(in srgb, var(--aqua-soft) 70%, transparent 30%);
  --motif-core: var(--aqua);
}

body[data-motif='marble'] {
  --motif-glow: color-mix(in srgb, var(--lav-glow) 70%, transparent 30%);
  --motif-soft: color-mix(in srgb, var(--surface) 85%, var(--lav-soft) 15%);
  --motif-core: var(--lav);
}

body[data-motif='bloom'] {
  --motif-glow: color-mix(in srgb, var(--lav-glow) 55%, var(--aqua-glow) 45%);
  --motif-soft: color-mix(in srgb, var(--lav-soft) 60%, transparent 40%);
  --motif-core: var(--lav-2);
}

body[data-motif='prism'] {
  --motif-glow: color-mix(in srgb, var(--aqua-glow) 55%, var(--lav-glow) 45%);
  --motif-soft: color-mix(in srgb, var(--surface) 82%, var(--aqua-soft) 18%);
  --motif-core: var(--aqua-2);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 15% 10%, color-mix(in srgb, var(--motif-glow) 55%, transparent) 0%, transparent 55%),
    radial-gradient(circle at 85% 0%, color-mix(in srgb, var(--motif-soft) 60%, transparent) 0%, transparent 50%);
  opacity: 0.35;
  pointer-events: none;
  z-index: -2;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="160" height="160" viewBox="0 0 160 160"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.8" numOctaves="2" stitchTiles="stitch"/></filter><rect width="160" height="160" filter="url(%23n)" opacity="0.03"/></svg>');
  mix-blend-mode: soft-light;
  pointer-events: none;
  z-index: -1;
}

img {
  max-width: 100%;
  height: auto;
  background: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--text);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

main {
  display: block;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 var(--space-3);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.08;
  color: var(--text);
}

h1 { font-size: var(--type-h1); letter-spacing: -0.02em; }

h2 { font-size: var(--type-h2); }

h3 { font-size: var(--type-h3); }

p {
  margin: 0 0 var(--space-3);
  color: var(--text-muted);
}

.section-header p {
  max-width: var(--container-text);
}

small {
  font-size: var(--type-small);
  color: var(--text-3);
}

.container {
  max-width: var(--max-width);
  padding: 0 var(--container-pad);
  margin: 0 auto;
}

.container--text {
  max-width: min(var(--container-text), 860px);
  padding: 0 var(--container-pad);
  margin: 0 auto;
}

.section {
  padding-block: var(--section-pad);
  position: relative;
}

.section--hero {
  padding-block: var(--section-pad-hero);
}

.section--alt {
  background: color-mix(in srgb, var(--surface) 92%, transparent 8%);
  border-block: 1px solid var(--border);
}

.section--flush {
  padding-top: 0;
}

.section--soft {
  background: color-mix(in srgb, var(--surface-2) 86%, transparent 14%);
}

.section--hero {
  background: linear-gradient(180deg, color-mix(in srgb, var(--motif-soft) 38%, transparent) 0%, transparent 70%),
    var(--surface);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.section--hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 20%, color-mix(in srgb, var(--motif-glow) 45%, transparent) 0%, transparent 60%);
  opacity: 0.4;
  pointer-events: none;
}

.section--hero > .container {
  position: relative;
  z-index: 1;
}

.section + .section::before {
  content: '';
  position: absolute;
  inset: 0;
  border-top: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  opacity: 0.4;
  pointer-events: none;
}

.skip-link {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  color: var(--text);
  transform: translateY(-120%);
  transition: transform var(--transition-fast);
  z-index: 1000;
}

.skip-link:focus-visible {
  transform: translateY(0);
  box-shadow: var(--focus-ring);
}

.hidden {
  display: none !important;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--page-accent);
}

.section-note {
  color: var(--text-3);
  font-size: var(--text-sm);
}

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

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.grid {
  display: grid;
  gap: var(--space-4);
}

.grid-2 {
  grid-template-columns: 1fr;
}

.grid-3 {
  grid-template-columns: 1fr;
}

.grid-4 {
  grid-template-columns: 1fr;
}

.split {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: center;
  justify-content: space-between;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}