/* Tokens + reset. Page sheets handle layout. */
:root {
  --ink: oklch(0.23 0.028 155);
  --ink-soft: oklch(0.4 0.03 155);
  --paper: oklch(0.985 0.01 155);
  --paper-2: oklch(0.955 0.018 155);
  --mist: oklch(0.94 0.025 155);
  --emerald: oklch(0.58 0.17 155);
  --emerald-deep: oklch(0.44 0.13 155);
  --hero: oklch(0.2 0.035 155);
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --radius: 1.25rem;
  --radius-lg: 1.75rem;
  --wrap: 70rem;
  --measure: 68ch;
  --font-display: "Bodoni Moda", "Iowan Old Style", "Palatino Linotype", serif;
  --font-body: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --ease: cubic-bezier(0.32, 0.72, 0, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  font-weight: 400;
  min-height: 100dvh;
  padding-bottom: 3.25rem;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--emerald); text-decoration: underline; text-underline-offset: 0.18em; }
a:hover { color: var(--emerald-deep); }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-sm);
}
p { margin: 0 0 var(--space-sm); max-width: var(--measure); }
button, input, textarea, select { font: inherit; }

.checks { list-style: none; margin: 0; padding: 0; }
.checks li {
  position: relative;
  padding-left: 1.6rem;
  margin-bottom: 0.55rem;
}
.checks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--emerald);
  font-weight: 700;
}

.badge {
  display: inline-block;
  padding: 0.15em 0.55em;
  color: var(--emerald-deep);
  outline: 1px solid var(--emerald);
  outline-offset: -1px;
  border-radius: 999px;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  background: transparent;
  font-weight: 600;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  color: var(--emerald-deep);
  font-weight: 700;
  text-decoration: none;
  background: none;
  padding: 0.55rem 0;
  cursor: pointer;
}
.cta .chev {
  display: inline-block;
  transition: transform 0.4s var(--ease);
}
.cta:hover { text-decoration: underline; }
.cta:hover .chev { transform: translateX(0.4rem); }

.kicker {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 var(--space-xs);
}

.accent { color: var(--emerald); }

.break {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  color: var(--emerald);
  font-size: 0.7rem;
  margin: var(--space-xl) 0;
  letter-spacing: 0.2em;
}
.break::before, .break::after {
  content: "";
  width: 2.5rem;
  height: 1px;
  background: color-mix(in oklch, var(--emerald) 40%, transparent);
}

.skip {
  position: absolute;
  left: -999px;
  top: 0;
}
.skip:focus {
  left: var(--space-sm);
  top: var(--space-sm);
  z-index: 30;
  background: var(--paper);
  padding: var(--space-xs) var(--space-sm);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

body {
  background-color: var(--paper);
  background-image:
    repeating-linear-gradient(
      118deg,
      transparent 0 18px,
      color-mix(in oklch, var(--ink) 4%, transparent) 18px 19px
    );
}

.aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(42rem 28rem at 12% -8%, oklch(0.82 0.12 155 / 0.45), transparent 60%),
    radial-gradient(36rem 24rem at 92% 8%, oklch(0.78 0.1 180 / 0.28), transparent 55%),
    radial-gradient(30rem 22rem at 70% 100%, oklch(0.86 0.08 140 / 0.3), transparent 50%);
}

.grain {
  position: relative;
}
.grain::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  opacity: 0.12;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='80' height='80'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.55'/></svg>");
}

.mast {
  background: color-mix(in oklch, var(--paper) 88%, white);
  padding: var(--space-sm) 0 0;
}
.mast-box {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: var(--space-sm) var(--space-md) var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  background: color-mix(in oklch, var(--paper) 70%, white);
  border-radius: var(--radius);
  box-shadow: none;
}
.mast-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--space-md);
  border-bottom: 2px solid var(--ink);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}
.brand img { width: 2.15rem; height: 2.15rem; border-radius: 0.7rem; }
.nav-toggle {
  display: none;
  background: none;
  color: var(--ink);
  padding: 0.45rem 0.7rem;
}
.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 1.1rem;
}
.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--emerald-deep);
  text-decoration: underline;
}
.crumbs {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0.45rem var(--space-md) 0.7rem;
  font-size: 0.8rem;
  color: var(--ink-soft);
}
.crumbs a { color: var(--ink-soft); }

.age-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  background: var(--ink);
  color: oklch(0.96 0.02 155);
  font-size: 0.78rem;
  padding: 0.55rem 1rem;
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  text-align: center;
}
.age-bar a { color: oklch(0.86 0.12 155); }

.cookie {
  position: fixed;
  right: var(--space-sm);
  bottom: 3.6rem;
  z-index: 21;
  max-width: 22rem;
  background: var(--paper);
  padding: var(--space-md);
  border-radius: var(--radius);
  box-shadow: 0 18px 40px oklch(0.3 0.04 155 / 0.12);
}
.cookie p { font-size: 0.92rem; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-inline: var(--space-md);
}

.foot {
  background: var(--mist);
  padding: var(--space-2xl) var(--space-md) var(--space-xl);
}
.foot-grid {
  max-width: var(--wrap);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--space-lg);
}
.foot h2 {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-family: var(--font-body);
  font-weight: 700;
  color: var(--ink-soft);
}
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { margin-bottom: 0.4rem; }
.foot a { color: var(--ink); text-decoration: underline; }
.foot-note {
  max-width: var(--wrap);
  margin: var(--space-lg) auto 0;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.timeline {
  display: grid;
  gap: var(--space-sm);
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  background: color-mix(in oklch, var(--paper) 55%, white);
  border-radius: var(--radius-lg);
}
.timeline ol { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-sm); }
.timeline li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: var(--space-sm);
  align-items: start;
}
.timeline .n {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--emerald);
  line-height: 1;
}

.toc {
  background: var(--mist);
  padding: var(--space-md);
  border-radius: var(--radius);
  margin-bottom: var(--space-lg);
}
.toc ol { margin: 0; padding-left: 1.1rem; }

.media-frame {
  background: var(--mist);
  padding: var(--space-xs);
  border-radius: var(--radius-lg);
  margin: var(--space-md) 0 var(--space-lg);
}
.media-frame img, .media-frame svg {
  width: 100%;
  border-radius: calc(var(--radius-lg) - 0.4rem);
}

.prose { max-width: 42rem; }
.prose h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); margin-top: var(--space-xl); }
.page-hero { padding: var(--space-2xl) 0 var(--space-lg); }
.page-hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  max-width: 16ch;
}
.is-anchor { outline: 2px solid var(--emerald); outline-offset: 6px; border-radius: 0.4rem; }
.form label { display: block; font-weight: 700; margin: var(--space-sm) 0 0.3rem; }
.form input, .form textarea, .form select {
  width: 100%;
  max-width: 32rem;
  padding: 0.7rem 0.85rem;
  background: color-mix(in oklch, var(--paper) 40%, white);
  color: var(--ink);
  border-radius: 0.9rem;
}
.form textarea { min-height: 9rem; }
.dl dt { font-weight: 700; font-family: var(--font-display); font-size: 1.25rem; margin-top: var(--space-md); }
.dl dd { margin: 0.25rem 0 0; max-width: var(--measure); }
.faq-page details {
  background: color-mix(in oklch, var(--paper) 40%, white);
  padding: var(--space-md);
  border-radius: var(--radius);
  margin-bottom: var(--space-sm);
}
.faq-page summary {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  cursor: pointer;
}

@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none;
    position: absolute;
    left: var(--space-md);
    right: var(--space-md);
    top: 4.6rem;
    background: var(--paper);
    padding: var(--space-md);
    border-radius: var(--radius);
    flex-direction: column;
    z-index: 12;
  }
  .site-nav.is-open { display: flex; }
  .mast { position: relative; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .foot-grid { grid-template-columns: 1fr; }
}