/* The Endless Folio — an original encyclopedia-style design: a field almanac
   printed on warm paper. Serif body, oxblood dotted cross-references, ruled
   specimen card, ornamented section rules. */

:root {
  --paper: #f2ecdf;
  --paper-deep: #e8dfcc;
  --ink: #221d17;
  --ink-soft: #5b5246;
  --rule: #b9ab92;
  --accent: #8e2f1c;
  --accent-soft: #c8742b;
  --measure: 40rem;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Charter, Georgia, serif;
  --label: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(ellipse at 20% 0%, rgba(255, 255, 255, 0.55), transparent 60%),
    radial-gradient(ellipse at 100% 100%, rgba(142, 47, 28, 0.05), transparent 50%),
    var(--paper);
  font: 17px/1.62 var(--serif);
  font-feature-settings: "onum" 1, "kern" 1;
  min-height: 100vh;
  padding-bottom: calc(5rem + env(safe-area-inset-bottom));
}

/* ---- masthead ----------------------------------------------------------- */
.masthead {
  max-width: calc(var(--measure) + 2.4rem);
  margin: 0 auto;
  padding: calc(1rem + env(safe-area-inset-top)) max(1.2rem, env(safe-area-inset-right)) 0.4rem max(1.2rem, env(safe-area-inset-left));
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.2rem 1rem;
  border-bottom: 3px double var(--rule);
}
.mark { color: var(--ink); text-decoration: none; display: inline-flex; align-items: baseline; gap: 0.45rem; }
.mark-glyph { color: var(--accent); font-size: 1.3rem; }
.mark-name { font-variant: small-caps; letter-spacing: 0.08em; font-size: 1.15rem; }
.mark-tag { margin: 0; font-style: italic; color: var(--ink-soft); font-size: 0.9rem; }

/* ---- article ------------------------------------------------------------ */
.page {
  max-width: calc(var(--measure) + 2.4rem);
  margin: 0 auto;
  padding: 0 max(1.2rem, env(safe-area-inset-right)) 0 max(1.2rem, env(safe-area-inset-left));
  position: relative;
  overflow-x: hidden; /* scattered words must never create sideways scroll */
  overflow-x: clip;
  overflow-clip-margin: 0;
}

.entry-head { padding: 1.6rem 0 0.6rem; }
.entry-head h1 {
  margin: 0;
  font-weight: 400;
  font-style: italic;
  font-size: clamp(2rem, 6.5vw, 3.1rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
}
.entry-meta {
  margin: 0.5rem 0 0;
  font: 0.72rem/1.4 var(--label);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}

.entry p { margin: 0 0 1rem; hyphens: auto; -webkit-hyphens: auto; }
.entry p.lead { font-size: 1.08em; }
.entry p.lead::first-letter {
  float: left;
  font-size: 3.3em;
  line-height: 0.85;
  padding: 0.08em 0.08em 0 0;
  color: var(--accent);
}

.entry h2 {
  margin: 2.2rem 0 0.7rem;
  font-weight: 400;
  font-variant: small-caps;
  letter-spacing: 0.06em;
  font-size: 1.32rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.entry h2::before { content: "§"; color: var(--accent); font-variant: normal; }
.entry h2::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, var(--rule), transparent); }

/* Every word is its own inline-block so it can be transformed (scattered)
   without changing line breaking. */
.w { display: inline-block; transform-origin: 50% 60%; }

a.xref { color: var(--accent); text-decoration: none; }
a.xref .w { text-decoration: underline dotted; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a.xref:hover .w, a.xref:focus-visible .w { text-decoration-style: solid; }
a.xref:focus-visible { outline: 2px solid var(--accent-soft); outline-offset: 2px; border-radius: 2px; }

/* ---- specimen card ----------------------------------------------------- */
.card {
  margin: 0.4rem 0 1.4rem;
  border: 1px solid var(--rule);
  outline: 1px solid var(--rule);
  outline-offset: 3px;
  background: rgba(255, 252, 244, 0.6);
  padding: 0.8rem;
}
.card .plate { margin: 0 0 0.6rem; }
.card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 0.15rem 0.9rem; font-size: 0.88rem; }
.card dt { font: 0.68rem/1.9 var(--label); text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-soft); }
.card dd { margin: 0; }

@media (min-width: 720px) {
  .card { float: right; width: 15.5rem; margin: 0.4rem 0 1rem 1.4rem; }
}

/* ---- plates ------------------------------------------------------------- */
.plate { margin: 1.4rem 0; }
.plate-svg { display: block; width: 100%; height: auto; max-height: 60vh; }
.plate-bg { fill: #f7f1e4; stroke: var(--rule); }
.plate-ink { stroke: var(--ink); }
.plate-ink path, .plate-ink ellipse, .plate-ink circle { vector-effect: non-scaling-stroke; }
.plate-solid { fill: var(--ink); stroke: none; }
.plate-route { stroke: var(--accent); stroke-dasharray: 2 4; stroke-width: 1.2; }
.plate-glyph { fill: var(--ink); font-family: var(--serif); }
.plate-glyph.ghost { fill: none; stroke: var(--ink-soft); stroke-width: 0.5; opacity: 0.5; }
.plate figcaption { font-size: 0.82rem; font-style: italic; color: var(--ink-soft); margin-top: 0.4rem; line-height: 1.45; }

/* ---- contents + see also ----------------------------------------------- */
.toc {
  display: inline-block;
  min-width: min(100%, 16rem);
  margin: 0.4rem 0 0.6rem;
  padding: 0.6rem 1rem 0.6rem 0.9rem;
  border-left: 3px solid var(--accent);
  background: var(--paper-deep);
}
.toc-title { margin: 0 0 0.2rem !important; font: 0.7rem/1.6 var(--label); text-transform: uppercase; letter-spacing: 0.12em; color: var(--ink-soft); }
.toc ol { margin: 0; padding-left: 1.3rem; }
.toc a { color: var(--ink); text-decoration-color: var(--rule); }
.toc-more { list-style: none; font-style: italic; color: var(--ink-soft); margin-left: -1.3rem; font-size: 0.9rem; }

.see-also ul { columns: 2 12rem; padding-left: 1.1rem; margin: 0; }

.continuation-note {
  text-align: center;
  font-style: italic;
  color: var(--ink-soft);
  font-size: 0.85rem;
  margin: 2.5rem 0 0 !important;
}
.continuation-note::before, .continuation-note::after { content: " ❧ "; color: var(--accent); font-style: normal; }
.continuation .entry-section.fresh { animation: ink-in 1.4s ease-out both; }
@keyframes ink-in { from { opacity: 0; filter: blur(2px); } to { opacity: 1; filter: none; } }

.sentinel { height: 1px; }

/* ---- creature + effects --------------------------------------------------- */
.crawler-canvas {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100vh;
  height: 100lvh; /* large viewport: no resize when mobile toolbars collapse */
  pointer-events: none; /* taps and scrolls go straight through to the page */
  z-index: 50;
}
.cw-threads { color: var(--accent); }
.cw-thread { opacity: 0.75; }

.fx-hl { animation: fx-hl 1.8s ease-out both; border-radius: 3px; }
@keyframes fx-hl {
  0% { background-color: rgba(200, 116, 43, 0.55); background-color: color-mix(in srgb, var(--fx-color, var(--accent-soft)) 45%, transparent); }
  100% { background-color: transparent; }
}
.fx-linked { text-decoration: underline; text-decoration-color: var(--accent-soft); text-underline-offset: 0.2em; }
.fx-ghost { color: var(--ink-soft); }
.fx-pulse { animation: fx-pulse 0.9s ease-out; }
.fx-press { translate: 0 1.5px; scale: .97; filter: brightness(.6) contrast(1.4); }

@keyframes fx-pulse { 30% { transform: scale(1.025) rotate(-0.6deg); } }

/* ---- controls --------------------------------------------------------------- */
.controls {
  position: fixed;
  z-index: 60;
  right: max(0.75rem, env(safe-area-inset-right));
  bottom: max(0.75rem, env(safe-area-inset-bottom));
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 0.4rem;
  max-width: calc(100vw - 1.5rem);
  font: 0.72rem/1 var(--label);
}
.controls button, .controls a {
  font: inherit;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: rgba(242, 236, 223, 0.92);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  border: 1px solid var(--rule);
  border-radius: 999px;
  min-height: 2.5rem; /* ≥ 40px touch target */
  padding: 0 0.9rem;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
}
.controls button[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.seed-label { color: var(--ink-soft); padding: 0 0.3rem; text-transform: uppercase; letter-spacing: 0.08em; }

.controls .ico { width: 1.15rem; height: 1.15rem; margin-right: 0.45rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.controls .ico path:first-child { fill: currentColor; stroke: none; }
#new-specimen .ico path:first-child { fill: none; stroke: currentColor; }
#sound-toggle[aria-pressed="false"] .ico-on, #sound-toggle[aria-pressed="true"] .ico-off { display: none; }
.controls {
  transition: transform 0.28s cubic-bezier(.2,.7,.2,1), opacity 0.22s;
}

@media (max-width: 480px) {
  body { font-size: 16.5px; }
}

/* Phones: a compact column of round icon buttons on the right edge that slides
   away while reading downward (main.js toggles .is-hidden / .is-yielding). */
@media (max-width: 600px) {
  .seed-label { display: none; }
  .controls {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0.5rem;
    right: max(0.6rem, env(safe-area-inset-right));
    bottom: max(0.75rem, env(safe-area-inset-bottom));
  }
  .controls button, .controls a {
    width: 2.75rem; height: 2.75rem; min-height: 0; /* 44px touch target */
    padding: 0;
    justify-content: center;
    border-radius: 50%;
    box-shadow: 0 1px 4px rgba(40, 28, 16, 0.12);
  }
  .controls .ico { margin: 0; width: 1.3rem; height: 1.3rem; }
  .controls .lbl {
    position: absolute; width: 1px; height: 1px; overflow: hidden;
    clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
  }
  .controls.is-hidden {
    transform: translateX(calc(100% + 1.2rem + env(safe-area-inset-right)));
    opacity: 0;
    pointer-events: none;
  }
  /* The creature is under the buttons: step aside so it can be poked. */
  .controls.is-yielding { opacity: 0.18; pointer-events: none; }
}

@media (prefers-reduced-motion: reduce) {
  .continuation .entry-section.fresh { animation: none; }
  .controls, .controls.is-hidden { transform: none; }
  .fx-pulse { animation: none; }
  .fx-press { translate: none; scale: none; }
}