/* ==========================================================================
   BASE — reset, typography, header, footer, shared utilities
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }
img, picture, svg, iframe { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }

body {
  min-height: 100vh;
  background: var(--ink);
  color: var(--parchment);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--text-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--wood); color: var(--parchment); }

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }

:focus-visible { outline: 2px solid var(--ember); outline-offset: 4px; border-radius: var(--radius); }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: var(--gutter); top: -100px; z-index: 100;
  padding: var(--space-3) var(--space-4);
  background: var(--parchment); color: var(--ink);
  font: 500 var(--text-small) / 1 var(--font-ui);
}
.skip-link:focus { top: var(--space-3); }

/* Layout ------------------------------------------------------------------ */
.container {
  width: 100%;
  max-width: calc(var(--max-width) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

main { display: block; }
main:focus { outline: none; }

/* Type helpers ------------------------------------------------------------ */
.label {
  font-family: var(--font-ui);
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  line-height: 1.4;
  color: var(--bronze);
}

.text-link {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-family: var(--font-ui);
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--bronze);
  text-decoration: none;
  padding-block: 0.35em;
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat;
  transition: background-size var(--dur-slow) var(--ease), color var(--dur) var(--ease);
}
.text-link:hover, .text-link:focus-visible { color: var(--parchment); background-size: 100% 1px; }
.text-link .arrow { display: inline-block; transition: transform var(--dur-slow) var(--ease); }
.text-link:hover .arrow, .text-link:focus-visible .arrow { transform: translateX(4px); }

.prose p + p { margin-top: 1em; }
.prose { color: var(--ash); max-width: 62ch; }

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: var(--header-h);
  transition: height var(--dur-slow) var(--ease);
}
/* Background lives on a pseudo-element so the backdrop blur doesn't trap the
   full-screen mobile menu inside the header box. */
.site-header::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--ink-glass);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  transition: opacity var(--dur-slow) var(--ease);
}
.page--home .site-header:not(.is-scrolled)::before { opacity: 0; }
.site-header.is-scrolled { height: var(--header-h-scrolled); }

.site-header__inner {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-5);
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: inline-flex; align-items: center; gap: 0.85rem;
  font-family: var(--font-ui);
  font-size: 0.8125rem; font-weight: 500;
  letter-spacing: var(--tracking-wordmark);
  text-transform: uppercase;
  color: var(--parchment);
  text-decoration: none;
  white-space: nowrap;
}
.wordmark svg { width: 20px; height: 20px; flex: none; color: var(--bronze); }

.site-nav ul { display: flex; gap: clamp(1.5rem, 1rem + 1.5vw, 2.75rem); }
.site-nav a {
  font-family: var(--font-ui);
  font-size: var(--text-label); font-weight: 500;
  letter-spacing: var(--tracking-label); text-transform: uppercase;
  color: var(--ash); text-decoration: none;
  padding-block: 0.5rem;
  background: linear-gradient(var(--bronze), var(--bronze)) 0 100% / 0 1px no-repeat;
  transition: color var(--dur) var(--ease), background-size var(--dur-slow) var(--ease);
}
.site-nav a:hover, .site-nav a:focus-visible, .site-nav a[aria-current] {
  color: var(--parchment); background-size: 100% 1px;
}
.site-nav .ext { font-size: 0.9em; margin-left: 0.25em; color: var(--bronze); }

.menu-toggle { display: none; }

@media (max-width: 767px) {
  .js .menu-toggle {
    display: inline-flex; align-items: center; gap: 0.6rem;
    background: none; border: 0; padding: 0.75rem 0; margin-right: -0.25rem; cursor: pointer;
    font-family: var(--font-ui); font-size: var(--text-label); font-weight: 500;
    letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--parchment);
  }
  .menu-toggle__bars { position: relative; width: 20px; height: 7px; }
  .menu-toggle__bars::before, .menu-toggle__bars::after {
    content: ""; position: absolute; left: 0; right: 0; height: 1px; background: currentColor;
    transition: transform var(--dur) var(--ease), top var(--dur) var(--ease);
  }
  .menu-toggle__bars::before { top: 0; }
  .menu-toggle__bars::after { top: 6px; }
  .menu-open .menu-toggle__bars::before { top: 3px; transform: rotate(45deg); }
  .menu-open .menu-toggle__bars::after { top: 3px; transform: rotate(-45deg); }

  .js .site-nav {
    position: fixed; inset: 0; z-index: -2;
    display: flex; align-items: center;
    padding: calc(var(--header-h) + var(--space-6)) var(--gutter) var(--space-8);
    background: var(--ink);
    opacity: 0; visibility: hidden;
    transition: opacity var(--dur-slow) var(--ease), visibility 0s linear var(--dur-slow);
  }
  .menu-open .site-nav { opacity: 1; visibility: visible; transition-delay: 0s; }
  .js .site-nav ul { flex-direction: column; gap: var(--space-5); }
  .js .site-nav a {
    font-family: var(--font-display); font-size: 2.75rem; font-weight: 300;
    letter-spacing: 0; text-transform: none; color: var(--parchment);
  }
  .menu-open { overflow: hidden; }

  /* Without JavaScript the links simply wrap under the wordmark. */
  html:not(.js) .site-header { position: absolute; height: auto; }
  html:not(.js) .site-header__inner { flex-wrap: wrap; padding-block: var(--space-4); }
  html:not(.js) .site-nav ul { flex-wrap: wrap; gap: var(--space-4); }
}

/* ==========================================================================
   PAGE INTROS (category, worlds, seasons, about)
   ========================================================================== */
.page-top { padding-top: calc(var(--header-h) + clamp(3.5rem, 2rem + 5vw, 7rem)); }

.page-intro { max-width: 52rem; margin-bottom: clamp(3rem, 2rem + 3vw, 5rem); }
.page-intro .label { margin-bottom: var(--space-5); display: block; }
.page-intro h1 {
  font-size: var(--text-h1); font-weight: 300; line-height: 1.02; letter-spacing: -0.01em;
}
.page-intro .prose { margin-top: var(--space-6); font-size: var(--text-lede); line-height: 1.5; }

/* ==========================================================================
   SECTIONS & HEADINGS
   ========================================================================== */
.section-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-5);
  margin-bottom: clamp(1.5rem, 1rem + 1.2vw, 2.25rem);
}
.section-head h2 {
  font-size: var(--text-h2); font-weight: 300; line-height: 1.1; letter-spacing: -0.005em;
}
.section-head .text-link { flex: none; }

.library-section + .library-section { margin-top: var(--section-gap); }

.link-row {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-3) var(--space-6);
  margin-top: var(--section-gap);
  padding-top: var(--space-6); border-top: 1px solid var(--line);
}
.link-row .label { color: var(--stone); margin-right: var(--space-2); }
.link-row a {
  font-size: 1.375rem; color: var(--parchment); text-decoration: none;
  background: linear-gradient(var(--bronze), var(--bronze)) 0 100% / 0 1px no-repeat;
  transition: background-size var(--dur-slow) var(--ease);
}
.link-row a:hover, .link-row a:focus-visible { background-size: 100% 1px; }
.link-row a[aria-current="page"] { color: var(--stone); }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  margin-top: var(--section-gap);
  padding-block: clamp(3rem, 2rem + 3vw, 5rem) var(--space-7);
  border-top: 1px solid var(--line);
  background: var(--ink);
}
.site-footer__grid {
  display: grid; gap: var(--space-7);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .site-footer__grid { grid-template-columns: 1.4fr 1fr; align-items: end; }
}
.site-footer .wordmark { margin-bottom: var(--space-4); }
.site-footer__tagline { font-size: 1.75rem; font-style: italic; color: var(--ash); line-height: 1.2; }
.site-footer__links { display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-6); }
@media (min-width: 768px) { .site-footer__links { justify-content: flex-end; } }
.site-footer__links a {
  font-family: var(--font-ui); font-size: var(--text-label); font-weight: 500;
  letter-spacing: var(--tracking-label); text-transform: uppercase;
  color: var(--ash); text-decoration: none; padding-block: 0.4rem;
}
.site-footer__links a:hover, .site-footer__links a:focus-visible { color: var(--parchment); }
.site-footer__legal {
  margin-top: var(--space-8); padding-top: var(--space-5); border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3);
  font-family: var(--font-ui); font-size: 0.8125rem; color: var(--stone);
}
.site-footer__legal a { color: var(--ash); }

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important; animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}