/* ==========================================================================
   Beyond20 Custom Remix — site stylesheet

   Parchment and ink, with a d20 worked into the details. Everything here is
   served from this site: the display font is self-hosted (see
   /assets/fonts/OFL-Cinzel.txt) and the dice are inline SVG data URIs, so
   loading a page makes no request to anyone else. There is no JavaScript.

   Colours are defined once as tokens and redefined for dark mode, so the two
   themes stay in step.
   ========================================================================== */

@font-face {
  font-family: "Cinzel";
  src: url("../fonts/cinzel-latin.woff2") format("woff2");
  font-weight: 400 900;
  font-style: normal;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   Tokens — light: parchment and ink
   -------------------------------------------------------------------------- */

:root {
  --parchment:       #f4ecdb;
  --parchment-deep:  #e9dcc3;
  --surface:         #fffdf7;
  --ink:             #241c15;
  --ink-soft:        #5f5142;
  --ink-faint:       #8a7a66;
  --rule:            #d6c6a8;
  --rule-strong:     #bda87f;
  --gold:            #9c7a24;
  --gold-bright:     #c8a13c;
  --crimson:         #96271f;
  --crimson-deep:    #7a1d16;
  --crimson-text:    #ffffff;
  --header-bg:       #1d1611;
  --header-ink:      #f2e7d2;
  --header-ink-soft: #bda98c;
  --code-bg:         #efe4cd;
  --code-ink:        #4a3520;
  --shadow:          0 1px 2px rgba(60, 40, 20, .08), 0 8px 24px rgba(60, 40, 20, .07);

  --d20: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cg fill='none' stroke='%23000' stroke-width='5' stroke-linejoin='round'%3E%3Cpolygon points='50,4 93,27 93,73 50,96 7,73 7,27'/%3E%3Cpolygon points='50,4 93,73 7,73'/%3E%3Cpolygon points='7,27 93,27 50,96'/%3E%3C/g%3E%3C/svg%3E");

  --wrap: 60rem;
  --measure: 46rem;
}

/* Dark: the same room with the lanterns out. */
@media (prefers-color-scheme: dark) {
  :root {
    --parchment:       #15110d;
    --parchment-deep:  #1d1712;
    --surface:         #1e1813;
    --ink:             #ece1cd;
    --ink-soft:        #b5a58d;
    --ink-faint:       #8d7d68;
    --rule:            #3a2f23;
    --rule-strong:     #4d3f2e;
    --gold:            #d3ab55;
    --gold-bright:     #e3c274;
    --crimson:         #c8483c;
    --crimson-deep:    #a93a2f;
    --crimson-text:    #1a1210;
    --header-bg:       #0e0b09;
    --header-ink:      #ece1cd;
    --header-ink-soft: #9c8c76;
    --code-bg:         #241d16;
    --code-ink:        #e0cfae;
    --shadow:          0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
  }
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--parchment);
  /* Faint paper grain, drawn with gradients so it costs no request. */
  background-image:
    radial-gradient(circle at 18% 12%, rgba(156, 122, 36, .07), transparent 42%),
    radial-gradient(circle at 82% 78%, rgba(150, 39, 31, .05), transparent 46%);
  background-attachment: fixed;
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--crimson);
  color: var(--crimson-text);
  padding: .6rem 1rem;
  z-index: 10;
}
.skip-link:focus { left: 0; }

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.site-header {
  background: var(--header-bg);
  color: var(--header-ink);
  border-bottom: 3px solid var(--gold);
  position: sticky;
  top: 0;
  z-index: 5;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem 1.5rem;
  flex-wrap: wrap;
  padding-block: .85rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
  color: inherit;
  margin-right: auto;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 9px;
  box-shadow: 0 0 0 1px var(--gold), 0 2px 10px rgba(0, 0, 0, .45);
}

.brand-text { display: flex; flex-direction: column; line-height: 1.15; }

.brand-title {
  font-family: "Cinzel", Georgia, "Times New Roman", serif;
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: .04em;
}

.brand-sub {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .22em;
  color: var(--gold-bright);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: .15rem .35rem;
}

.site-nav a {
  display: block;
  position: relative;
  padding: .4rem .7rem;
  border-radius: 6px;
  color: var(--header-ink-soft);
  text-decoration: none;
  font-size: .82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover { color: var(--header-ink); background: rgba(255, 255, 255, .06); }

.site-nav a.active { color: var(--header-ink); }

/* The active marker is a drawn line rather than a border-bottom, because a
   border on a rounded box curves up around the corners. Sitting it in the
   transparent border's space keeps every item the same height. */
.site-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--gold-bright);
}

/* --------------------------------------------------------------------------
   Hero — home page only
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--rule);
  background:
    linear-gradient(180deg, var(--parchment-deep), transparent 85%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding-block: 3.5rem 3rem;
  max-width: 44rem;
}

/* The big d20, watermarked behind the hero. */
.hero::after {
  content: "";
  position: absolute;
  right: -3rem;
  top: 50%;
  width: 22rem;
  height: 22rem;
  transform: translateY(-50%) rotate(-12deg);
  background-color: var(--gold);
  opacity: .13;
  -webkit-mask: var(--d20) center / contain no-repeat;
  mask: var(--d20) center / contain no-repeat;
  pointer-events: none;
}

.hero .eyebrow {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .22em;
  color: var(--gold);
  margin: 0 0 .8rem;
}

.hero h1 {
  font-family: "Cinzel", Georgia, serif;
  font-weight: 700;
  font-size: clamp(2.1rem, 5.2vw, 3.3rem);
  line-height: 1.1;
  letter-spacing: .01em;
  margin: 0 0 1rem;
  border: 0;
  padding: 0;
}

.hero p {
  font-size: 1.12rem;
  color: var(--ink-soft);
  margin: 0 0 1.8rem;
  max-width: 34rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .7rem 1.3rem;
  border-radius: 8px;
  font-weight: 650;
  font-size: .95rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform .08s ease, background-color .15s ease, border-color .15s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--crimson);
  color: var(--crimson-text);
  box-shadow: var(--shadow);
}
.btn-primary:hover { background: var(--crimson-deep); }

.btn-ghost {
  border-color: var(--rule-strong);
  color: var(--ink);
  background: var(--surface);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

/* Header-sized ghost button. */
.site-header .btn-ghost {
  background: transparent;
  border-color: rgba(211, 171, 85, .5);
  color: var(--header-ink);
  padding: .45rem .9rem;
  font-size: .82rem;
}
.site-header .btn-ghost:hover { border-color: var(--gold-bright); color: var(--gold-bright); }

/* --------------------------------------------------------------------------
   Content
   -------------------------------------------------------------------------- */

main { padding-block: 2.5rem 4rem; }

.prose { max-width: var(--measure); }

/* Pages that need the full width of the wrap — the interactive demo. */
.prose-wide { max-width: none; }

.prose h1, .prose h2, .prose h3, .prose h4 {
  font-family: "Cinzel", Georgia, serif;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: .01em;
  scroll-margin-top: 5rem;
}

.prose h1 { font-size: 2.1rem; margin: 0 0 1.4rem; }

.prose h2 {
  font-size: 1.5rem;
  margin: 3rem 0 1.1rem;
  padding-bottom: .55rem;
  border-bottom: 1px solid var(--rule);
  position: relative;
}

/* A small gold d20 sitting on the rule under each h2. */
.prose h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -9px;
  width: 17px;
  height: 17px;
  background-color: var(--gold);
  -webkit-mask: var(--d20) center / contain no-repeat;
  mask: var(--d20) center / contain no-repeat;
}

.prose h3 { font-size: 1.16rem; margin: 2.2rem 0 .7rem; }
.prose h4 { font-size: 1rem; margin: 1.8rem 0 .5rem; letter-spacing: .04em; }

.prose p { margin: 0 0 1.15rem; }

.prose a {
  color: var(--crimson);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
.prose a:hover { color: var(--gold); text-decoration-thickness: 2px; }

.prose strong { font-weight: 680; color: var(--ink); }

.prose ul, .prose ol { margin: 0 0 1.15rem; padding-left: 1.4rem; }
.prose li { margin-bottom: .45rem; }
.prose li::marker { color: var(--gold); }

.prose hr {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--rule-strong), transparent);
  margin: 2.5rem 0;
}

/* Images: framed like a plate in a rulebook. */
.prose img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--rule);
  box-shadow: var(--shadow);
  background: var(--surface);
}
.prose p > img:only-child { display: block; }

.prose iframe {
  max-width: 100%;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: #000;
}

/* Code */
.prose code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: .88em;
  background: var(--code-bg);
  color: var(--code-ink);
  padding: .12em .38em;
  border-radius: 5px;
  border: 1px solid var(--rule);
}

.prose pre {
  background: var(--code-bg);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--gold);
  /* Square on the left so the gold edge is a straight line, the way the
     blockquote's is; rounded corners would bend it. */
  border-radius: 0 8px 8px 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  margin: 0 0 1.3rem;
}
.prose pre code { background: none; border: 0; padding: 0; font-size: .86rem; color: var(--code-ink); }

/* Quotes and callouts */
.prose blockquote {
  margin: 0 0 1.3rem;
  padding: .9rem 1.2rem;
  background: var(--surface);
  border-left: 3px solid var(--gold);
  border-radius: 0 8px 8px 0;
  color: var(--ink-soft);
  box-shadow: var(--shadow);
}
.prose blockquote p:last-child { margin-bottom: 0; }

/* Tables — a ledger from the character sheet. */
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.5rem;
  font-size: .94rem;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.prose thead th {
  background: var(--header-bg);
  color: var(--header-ink);
  font-family: "Cinzel", Georgia, serif;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  text-align: left;
}

.prose th, .prose td {
  padding: .7rem .9rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

.prose tbody tr:nth-child(even) { background: var(--parchment-deep); }
.prose tbody tr:last-child td { border-bottom: 0; }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  background: var(--header-bg);
  color: var(--header-ink-soft);
  border-top: 3px solid var(--gold);
  padding-block: 2.5rem;
  font-size: .9rem;
}

.site-footer p { margin: 0 0 .8rem; max-width: 52rem; }
.site-footer a { color: var(--header-ink); text-decoration: underline; text-underline-offset: 2px; }
.site-footer a:hover { color: var(--gold-bright); }
.site-footer .fine { font-size: .82rem; color: var(--ink-faint); }

/* --------------------------------------------------------------------------
   Small screens
   -------------------------------------------------------------------------- */

@media (max-width: 46rem) {
  body { font-size: 16px; }
  .header-inner { padding-block: .7rem; }
  .brand-mark { width: 34px; height: 34px; }
  .brand-title { font-size: 1.1rem; }
  .site-nav { order: 3; width: 100%; }
  .site-nav a { padding: .35rem .5rem; font-size: .74rem; letter-spacing: .06em; }
  .hero-inner { padding-block: 2.25rem 2rem; }
  .hero::after { right: -6rem; width: 16rem; height: 16rem; opacity: .1; }
  .prose h2 { margin-top: 2.25rem; }
  .prose table { font-size: .88rem; }
  .prose th, .prose td { padding: .55rem .6rem; }
}

@media print {
  .site-header, .hero::after, .site-footer { display: none; }
  body { background: #fff; color: #000; }
}