/* ============================================================================
   views.css — page composition.

   The three signature pieces of this interface live here: the hero at the
   surface, the scroll-driven descent through the zones, and the dive console.
   ========================================================================= */

/* ============================================================================
   Hero
   ========================================================================= */

.hero {
  position: relative;
  min-height: calc(100dvh - var(--topbar-h) - var(--strip-h));
  display: grid;
  align-content: center;
  gap: var(--s-4);
  padding: var(--s-7) var(--gutter) var(--s-8);
  max-width: var(--page-max);
  margin-inline: auto;
}
/* Grid children default to min-width:auto; the display-size title sets a
   min-content floor wider than a small phone without this. */
.hero > * { min-width: 0; }
.hero__title, .hero__lede { overflow-wrap: break-word; }

.hero__eyebrow { margin-bottom: var(--s-1); }

.hero__title {
  font-family: var(--font-display);
  font-size: var(--t-6);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 400;
  margin-block: var(--s-1) var(--s-2);
  max-width: 20ch;
  background: linear-gradient(
    175deg,
    var(--text-0) 0%,
    color-mix(in oklab, var(--text-0) 70%, var(--accent)) 62%,
    var(--accent) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__title em {
  font-style: italic;
  color: color-mix(in oklab, var(--accent) 80%, var(--text-0));
  -webkit-text-fill-color: currentColor;
}

.hero__lede {
  font-size: var(--t-0);
  line-height: var(--lh-snug);
  color: var(--text-1);
  max-width: 64ch;
}

.hero__actions { display: flex; gap: var(--s-3); flex-wrap: wrap; margin-top: var(--s-2); }

/* The headline numbers under the hero. */
.hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(148px, 100%), 1fr));
  gap: var(--s-4) var(--s-5);
  margin-top: var(--s-5);
  padding-top: var(--s-5);
  border-top: 1px solid var(--line-1);
}

/* Scroll cue */
.hero__cue {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  margin-top: var(--s-3);
  font-family: var(--font-mono);
  font-size: var(--t--2);
  letter-spacing: var(--tr-wide);
  text-transform: uppercase;
  color: var(--text-3);
}
.hero__cue-bar {
  position: relative;
  width: 1px;
  height: 42px;
  background: var(--line-2);
  overflow: hidden;
}
.hero__cue-bar::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  height: 14px;
  background: var(--accent);
  animation: cue-fall 2.2s var(--ease-in-out) infinite;
}
@keyframes cue-fall {
  0% { top: -14px; opacity: 0; }
  30% { opacity: 1; }
  100% { top: 42px; opacity: 0; }
}

/* ── Light extinction strip ───────────────────────────────────────────── */

.bands { display: grid; gap: var(--s-3); }
.band {
  display: grid;
  grid-template-columns: 74px 1fr 88px;
  align-items: center;
  gap: var(--s-3);
  font-size: var(--t--2);
}
.band__name { color: var(--text-2); letter-spacing: var(--tr-wide); text-transform: uppercase; }
.band__track {
  position: relative;
  height: 22px;
  border-radius: var(--r-1);
  background: var(--surface-1);
  border: 1px solid var(--line-1);
  overflow: hidden;
}
.band__fill {
  position: absolute;
  inset: 0;
  transform-origin: left;
  background: linear-gradient(90deg, var(--band-color), color-mix(in oklab, var(--band-color) 30%, transparent));
  transition: transform var(--d-slow) var(--ease-out);
}
.band__pct {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: var(--text-1);
}

/* ============================================================================
   Descent — scroll-driven zone narrative
   ========================================================================= */

.descent { position: relative; }

.zone-block {
  position: relative;
  min-height: 100dvh;
  display: grid;
  align-content: center;
  gap: var(--s-6);
  padding: var(--s-9) var(--gutter);
  max-width: var(--page-max);
  margin-inline: auto;
  scroll-margin-top: var(--topbar-h);
}

.zone-block__head { max-width: 72ch; }

.zone-block__index {
  font-family: var(--font-mono);
  font-size: var(--t--2);
  letter-spacing: var(--tr-wider);
  color: var(--zone-accent, var(--accent));
}

.zone-block__name {
  font-family: var(--font-display);
  font-size: var(--t-4);
  line-height: var(--lh-tight);
  letter-spacing: var(--tr-tight);
  font-weight: 400;
  margin-block: var(--s-2) var(--s-1);
}
.zone-block__alias {
  font-size: var(--t-1);
  font-style: italic;
  color: var(--zone-accent, var(--accent));
  margin-bottom: var(--s-4);
}
.zone-block__summary {
  font-size: var(--t-0);
  color: var(--text-1);
  max-width: 62ch;
}

/* Live readings for the zone boundary */
.zone-block__readings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(128px, 100%), 1fr));
  gap: var(--s-4);
  padding: var(--s-5) 0;
  border-block: 1px solid var(--line-1);
}

/* Featured species strip inside a zone */
.zone-block__fauna {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(228px, 100%), 1fr));
  gap: var(--s-4);
}

/* ============================================================================
   Atlas
   ========================================================================= */

.atlas__toolbar {
  position: sticky;
  top: var(--topbar-h);
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-4) 0;
  margin-bottom: var(--s-5);
  background: linear-gradient(180deg, var(--bg-0) 62%, transparent);
}
.atlas__search { position: relative; flex: 1; min-width: 210px; max-width: 380px; }
.atlas__search svg {
  position: absolute;
  left: var(--s-3);
  top: 50%;
  transform: translateY(-50%);
  width: 17px;
  height: 17px;
  color: var(--text-3);
  pointer-events: none;
}
.atlas__search .input { padding-left: calc(var(--s-3) * 2 + 17px); }

.atlas__filters { display: flex; gap: var(--s-2); flex-wrap: wrap; }

.atlas__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--t--2);
  color: var(--text-3);
  letter-spacing: var(--tr-wide);
}

.atlas__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(272px, 100%), 1fr));
  gap: var(--s-4);
}

/* ── Specimen card ────────────────────────────────────────────────────── */

.specimen {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding: 0;
  overflow: hidden;
  text-align: left;
  width: 100%;
  background: var(--surface-1);
  border: 1px solid var(--line-1);
  border-radius: var(--r-4);
  transition:
    border-color var(--d-base) var(--ease-out),
    background var(--d-base) var(--ease-out),
    transform var(--d-base) var(--ease-out),
    box-shadow var(--d-base) var(--ease-out);
}
.specimen:hover {
  border-color: color-mix(in oklab, var(--specimen-accent, var(--accent)) 55%, transparent);
  background: var(--surface-2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
}

.specimen__art {
  position: relative;
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(
      ellipse 70% 90% at 50% 118%,
      color-mix(in oklab, var(--specimen-accent, var(--accent)) 22%, transparent),
      transparent 72%
    ),
    linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border-bottom: 1px solid var(--line-1);
}
.specimen__art svg {
  width: 74%;
  height: 74%;
  color: color-mix(in oklab, var(--specimen-accent, var(--accent)) 82%, var(--text-0));
  filter: drop-shadow(0 0 18px color-mix(in oklab, var(--specimen-accent, var(--accent)) 40%, transparent));
  transition: transform var(--d-slow) var(--ease-out);
}
.specimen:hover .specimen__art svg { transform: scale(1.06) translateY(-2px); }

.specimen__glow {
  position: absolute;
  top: 12%;
  right: 14%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lure);
  box-shadow: 0 0 12px 3px var(--lure);
  animation: biolum 3.4s var(--ease-in-out) infinite;
}
@keyframes biolum {
  0%, 100% { opacity: 0.25; transform: scale(0.85); }
  45% { opacity: 1; transform: scale(1.15); }
}

/* ── Species photography ──────────────────────────────────────────────
   A photograph occupies the same slot as the drawn plate, so a mixed grid
   keeps its rhythm. The credit is overlaid on a scrim rather than placed
   below: it must stay visible (CC BY and CC BY-SA make naming the creator a
   condition of use) but a caption line under thirty-six cards would wreck the
   grid. The scrim guarantees contrast over any photograph, which is why the
   text colour below is a literal white rather than a theme token — it sits on
   a dark gradient in both themes, never on the page background. */

.specimen__photo {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border-bottom: 1px solid var(--line-1);
}
.specimen__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--d-slow) var(--ease-out);
}
.specimen:hover .specimen__photo img { transform: scale(1.045); }

.specimen__photo .credit {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 18px var(--s-3) 5px;
  font-size: 9.5px;
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.9);
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.82));
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Detail plate ─────────────────────────────────────────────────── */

.taxon__photo {
  margin: 0 0 var(--s-6);
  border: 1px solid var(--line-1);
  border-radius: var(--r-4);
  overflow: hidden;
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
}
.taxon__photo img {
  width: 100%;
  /* `contain`, not `cover`. The plate is very wide, so a centre crop discards
     most of a portrait-orientation photo and can cut an off-centre subject out
     entirely — the dumbo octopus sits on the right of a mostly-black frame and
     disappeared under `cover`. A detail view should show the whole animal. */
  height: clamp(240px, 42vh, 460px);
  object-fit: contain;
  background: var(--bg-1);
}

/* The full attribution record: creator, licence deed, source file page. */
.credit--full {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--s-1) var(--s-4);
  padding: var(--s-3) var(--s-4);
  border-top: 1px solid var(--line-1);
  background: var(--surface-1);
  font-size: var(--t--2);
  color: var(--text-2);
}
.credit--full a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
}
.credit--full a {
  position: relative;
  display: inline-block;
}
/* Grow the touch target to the WCAG 2.2 AA minimum without changing how the
   line looks: the credit links are 13-18px tall as text. */
.credit--full a::after {
  content: '';
  position: absolute;
  inset: -6px -4px;
}
.credit--full a:hover { text-decoration-thickness: 2px; }
.credit--full .dim { color: var(--text-3); }

/* In the drawer the plate bleeds to the panel edges, matching .taxon__art. */
.drawer .taxon__photo {
  margin: calc(var(--s-7) * -1) calc(var(--s-6) * -1) var(--s-6);
  border: none;
  border-bottom: 1px solid var(--line-1);
  border-radius: 0;
}
.drawer .taxon__photo img { height: clamp(200px, 28vh, 300px); }

.specimen__body { padding: 0 var(--s-4) var(--s-4); display: flex; flex-direction: column; gap: var(--s-2); flex: 1; }
.specimen__name { font-size: var(--t-0); font-weight: 600; line-height: var(--lh-snug); }
.specimen__sci {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--t--1);
  color: var(--text-2);
}
.specimen__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-2);
  margin-top: auto;
  padding-top: var(--s-2);
}
.specimen__depth {
  font-family: var(--font-mono);
  font-size: var(--t--2);
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
}

/* Depth bar shown on each card, spanning the full 0-11 000 m so the cards are
   comparable to one another at a glance. */
.depthbar {
  position: relative;
  height: 3px;
  border-radius: var(--r-full);
  background: var(--surface-3);
  margin-top: var(--s-1);
}
.depthbar__span {
  position: absolute;
  top: 0;
  bottom: 0;
  border-radius: var(--r-full);
  background: var(--specimen-accent, var(--accent));
  min-width: 3px;
}

/* ============================================================================
   Species detail (drawer + full page)
   ========================================================================= */

/* Specimen plate. On a full page it is a bounded panel — the negative margin
   that bleeds it to the drawer's edges is applied only inside the drawer,
   otherwise it would ride up over the breadcrumb. */
.taxon__art {
  position: relative;
  display: grid;
  place-items: center;
  height: clamp(200px, 30vh, 300px);
  margin-bottom: var(--s-6);
  border: 1px solid var(--line-1);
  border-radius: var(--r-4);
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 90% at 50% 118%, color-mix(in oklab, var(--spec-accent, var(--accent)) 26%, transparent), transparent 70%),
    linear-gradient(180deg, var(--bg-2), var(--bg-1));
}
.taxon__art svg {
  width: auto;
  height: 78%;
  max-width: 62%;
  color: color-mix(in oklab, var(--spec-accent, var(--accent)) 85%, var(--text-0));
  filter: drop-shadow(0 0 26px color-mix(in oklab, var(--spec-accent, var(--accent)) 45%, transparent));
}

/* In the drawer the plate bleeds to the panel's edges. */
.drawer .taxon__art {
  margin: calc(var(--s-7) * -1) calc(var(--s-6) * -1) var(--s-6);
  height: clamp(190px, 26vh, 260px);
  border: none;
  border-bottom: 1px solid var(--line-1);
  border-radius: 0;
}

.taxon__names { margin-bottom: var(--s-5); }
.taxon__common {
  font-family: var(--font-display);
  font-size: var(--t-3);
  line-height: var(--lh-tight);
  letter-spacing: var(--tr-tight);
  font-weight: 400;
}
.taxon__sci {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--t-1);
  color: var(--text-2);
  margin-top: var(--s-1);
}

.taxon__facts {
  display: grid;
  gap: var(--s-3);
  margin-top: var(--s-5);
}
.fact {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: var(--s-3);
  align-items: start;
  padding: var(--s-3) var(--s-4);
  background: var(--surface-1);
  border: 1px solid var(--line-1);
  border-radius: var(--r-3);
  font-size: var(--t--1);
  line-height: var(--lh-snug);
  color: var(--text-1);
}
.fact__n {
  font-family: var(--font-mono);
  font-size: var(--t--2);
  color: var(--accent);
  padding-top: 2px;
}

.speclist { display: grid; gap: 0; }
.speclist__row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: var(--s-4);
  padding: var(--s-3) 0;
  border-bottom: 1px solid var(--line-1);
  font-size: var(--t--1);
}
.speclist__row:last-child { border-bottom: none; }
.speclist__key {
  font-size: var(--t--2);
  letter-spacing: var(--tr-wide);
  text-transform: uppercase;
  color: var(--text-3);
  padding-top: 2px;
}
.speclist__val { color: var(--text-0); }

.related { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(150px, 100%), 1fr)); gap: var(--s-3); }
.related__item {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
  padding: var(--s-3);
  background: var(--surface-1);
  border: 1px solid var(--line-1);
  border-radius: var(--r-3);
  font-size: var(--t--2);
  transition: all var(--d-fast) linear;
  text-align: left;
}
.related__item:hover { border-color: var(--line-strong); background: var(--surface-2); }
.related__item b { font-size: var(--t--1); font-weight: 600; color: var(--text-0); }

/* ============================================================================
   Dive console
   ========================================================================= */

.console {
  display: grid;
  grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  gap: var(--s-5);
  align-items: start;
}

.console__controls {
  display: grid;
  gap: var(--s-5);
  min-width: 0;
  position: sticky;
  top: calc(var(--topbar-h) + var(--s-5));
}

.depth-input {
  display: flex;
  align-items: baseline;
  gap: var(--s-2);
  font-family: var(--font-mono);
}
.depth-input input {
  /* `flex: 1` + `min-width: 0`, NOT `width: 100%`. As a flex item, a 100% width
     resolves against the container and then the sibling unit suffix and the gap
     are added on top, overflowing the panel by ~27px and clipping the "m". */
  flex: 1;
  min-width: 0;
  width: auto;
  background: none;
  border: none;
  border-bottom: 2px solid var(--line-2);
  padding: var(--s-1) 0;
  font-size: var(--t-4);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: var(--tr-tight);
  color: var(--text-0);
  transition: border-color var(--d-fast) linear;
}
.depth-input input:focus { outline: none; border-color: var(--accent); }
.depth-input span { font-size: var(--t-2); color: var(--text-3); }

.presets { display: flex; flex-wrap: wrap; gap: var(--s-2); }

.console__stage { display: grid; gap: var(--s-5); min-width: 0; }
/* Grid children default to min-width:auto, so an unwrapped panel or a plain
   wrapper div refuses to shrink and drags the whole column wider than the
   phone. Applies to the direct children whatever element they are. */
.console__stage > *,
.console__controls > * { min-width: 0; }

.gauges {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(132px, 100%), 1fr));
  gap: var(--s-4);
}

.chart-wrap { position: relative; min-width: 0; }
/* A canvas is a replaced element: in min-content sizing, width:100% falls
   back to the intrinsic width of its bitmap, which put a floor under the
   whole console column on a narrow phone. min-width:0 releases it. */
.chart-wrap canvas { width: 100%; min-width: 0; height: 260px; display: block; }
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-4);
  padding: var(--s-3) var(--s-5);
  border-top: 1px solid var(--line-1);
  font-size: var(--t--2);
}
.chart-legend span { display: inline-flex; align-items: center; gap: 6px; color: var(--text-2); }
.chart-legend i { width: 12px; height: 2px; border-radius: 2px; background: currentColor; }

/* Equivalence list — the "what does this pressure mean" panel */
.equiv { display: grid; gap: 0; min-width: 0; }
.equiv__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-1) var(--s-4);
  padding: var(--s-3) 0;
  border-bottom: 1px solid var(--line-1);
  min-width: 0;
}
.equiv__row:last-child { border-bottom: none; }
.equiv__label {
  font-size: var(--t--1);
  line-height: var(--lh-snug);
  color: var(--text-1);
  min-width: 0;
}
.equiv__value {
  font-family: var(--font-mono);
  font-size: var(--t-0);
  line-height: var(--lh-snug);
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  /* Numbers must not break mid-figure, but a prose value such as the water
     compression line has to be allowed to wrap or it sets the row's
     min-content width and gets clipped by .panel's overflow:hidden. */
  overflow-wrap: break-word;
  min-width: 0;
  margin-left: auto;
  text-align: right;
}

/* Live stream readout */
.live {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(104px, 100%), 1fr));
  gap: var(--s-4);
}
.live__cell { display: grid; gap: 2px; }
.live__k {
  font-size: 9.5px;
  letter-spacing: var(--tr-wide);
  text-transform: uppercase;
  color: var(--text-3);
}
.live__v {
  font-family: var(--font-mono);
  font-size: var(--t-1);
  font-variant-numeric: tabular-nums;
  color: var(--text-0);
}

/* Mission clock + progress */
.mission { display: grid; gap: var(--s-3); }
.mission__bar {
  height: 8px;
  border-radius: var(--r-full);
  background: var(--surface-2);
  overflow: hidden;
  position: relative;
}
.mission__fill {
  height: 100%;
  width: 0;
  border-radius: var(--r-full);
  background: linear-gradient(90deg, var(--accent), var(--lure));
  transition: width 120ms linear;
}
.mission__meta {
  display: flex;
  justify-content: space-between;
  gap: var(--s-4);
  font-family: var(--font-mono);
  font-size: var(--t--2);
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
}

/* Landmark ladder */
.ladder { position: relative; display: grid; gap: 0; min-width: 0; }
.ladder__row {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--s-4);
  padding: var(--s-2) 0;
  border-bottom: 1px solid var(--line-1);
  font-size: var(--t--1);
  transition: background var(--d-fast) linear, color var(--d-fast) linear;
}
.ladder__row:last-child { border-bottom: none; }
.ladder__row.is-passed { color: var(--text-3); }
.ladder__row.is-passed .ladder__name { color: var(--text-3); }
.ladder__row.is-current {
  background: var(--accent-soft);
  border-radius: var(--r-2);
  /* Bleed the highlight into the panel's padding WITHOUT widening the row:
     negative margins made .ladder 24px wider than its container, and
     .panel's overflow:hidden cut the right-hand edge off. */
  box-shadow: 0 0 0 var(--s-3) var(--accent-soft);
}
.ladder__row.is-current .ladder__name { color: var(--accent); font-weight: 600; }
.ladder__d { font-family: var(--font-mono); font-variant-numeric: tabular-nums; color: var(--text-2); }
.ladder__name { color: var(--text-1); line-height: var(--lh-snug); min-width: 0; }
.ladder__note {
  font-size: var(--t--2);
  line-height: var(--lh-snug);
  color: var(--text-3);
  text-align: right;
  min-width: 0;
}

/* ============================================================================
   Dive log
   ========================================================================= */

.logstats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(140px, 100%), 1fr));
  gap: var(--s-5);
  padding: var(--s-5);
  background: var(--surface-1);
  border: 1px solid var(--line-1);
  border-radius: var(--r-4);
}

.loglist { display: grid; gap: var(--s-3); }

.logentry {
  display: grid;
  grid-template-columns: 4px 1fr auto;
  gap: var(--s-5);
  align-items: center;
  padding: var(--s-4) var(--s-5);
  background: var(--surface-1);
  border: 1px solid var(--line-1);
  border-radius: var(--r-3);
  transition: all var(--d-base) var(--ease-out);
}
.logentry:hover { border-color: var(--line-2); background: var(--surface-2); }
.logentry__bar { align-self: stretch; border-radius: var(--r-full); background: var(--entry-accent, var(--accent)); opacity: 0.8; }
.logentry__main { min-width: 0; }
.logentry__label { font-weight: 600; font-size: var(--t-0); }
.logentry__notes {
  font-size: var(--t--2);
  color: var(--text-2);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.logentry__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2) var(--s-4);
  margin-top: var(--s-2);
  font-family: var(--font-mono);
  font-size: var(--t--2);
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}
.logentry__depth {
  font-family: var(--font-mono);
  font-size: var(--t-2);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text-0);
  text-align: right;
  white-space: nowrap;
}
.logentry__depth small { font-size: max(0.5em, 11px); color: var(--text-3); font-weight: 400; margin-left: 2px; }

/* ============================================================================
   Prose (Method page)
   ========================================================================= */

.prose { max-width: var(--measure); }
.prose h2 {
  font-family: var(--font-display);
  font-size: var(--t-3);
  font-weight: 400;
  letter-spacing: var(--tr-tight);
  line-height: var(--lh-snug);
  margin-top: var(--s-8);
  margin-bottom: var(--s-4);
  padding-top: var(--s-5);
  border-top: 1px solid var(--line-1);
}
.prose h3 {
  font-size: var(--t-1);
  font-weight: 600;
  margin-top: var(--s-6);
  margin-bottom: var(--s-2);
}
.prose p { margin-bottom: var(--s-4); color: var(--text-1); }
.prose ul { margin-bottom: var(--s-4); display: grid; gap: var(--s-2); }
.prose li {
  position: relative;
  padding-left: var(--s-5);
  color: var(--text-1);
}
.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 10px;
  height: 1px;
  background: var(--accent);
}
.prose strong { color: var(--text-0); font-weight: 600; }
.prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 1px 5px;
  border-radius: var(--r-1);
  background: var(--surface-2);
  border: 1px solid var(--line-1);
  color: var(--accent);
}
.prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.prose a:hover { text-decoration-thickness: 2px; }

.equation {
  margin: var(--s-5) 0;
  padding: var(--s-4) var(--s-5);
  background: var(--surface-1);
  border: 1px solid var(--line-1);
  border-left: 2px solid var(--accent);
  border-radius: var(--r-2);
  font-family: var(--font-mono);
  font-size: var(--t--1);
  line-height: var(--lh-loose);
  color: var(--text-0);
  overflow-x: auto;
  white-space: pre;
}
.equation em { color: var(--text-3); font-style: normal; }

/* Architecture diagram on the Method page */
.arch { display: grid; gap: var(--s-4); }
.arch__row {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: var(--s-4);
  align-items: start;
  padding: var(--s-4) 0;
  border-bottom: 1px solid var(--line-1);
}
.arch__row:last-child { border-bottom: none; }
.arch__layer {
  font-family: var(--font-mono);
  font-size: var(--t--2);
  letter-spacing: var(--tr-wide);
  text-transform: uppercase;
  color: var(--accent);
  padding-top: 3px;
}
.arch__items { display: flex; flex-wrap: wrap; gap: var(--s-2); }

/* ============================================================================
   Responsive
   ========================================================================= */

@media (max-width: 1080px) {
  .console { grid-template-columns: 1fr; }
  .console__controls { position: static; }
}

@media (max-width: 720px) {
  .band { grid-template-columns: 60px minmax(0, 1fr) 64px; }
  .speclist__row { grid-template-columns: 1fr; gap: var(--s-1); }
  .ladder__row { grid-template-columns: 62px minmax(0, 1fr); gap: var(--s-3); }
  .ladder__note { display: none; }
  .logentry { grid-template-columns: 3px 1fr; }
  .logentry__depth { grid-column: 2; text-align: left; }
  .arch__row { grid-template-columns: 1fr; gap: var(--s-2); }
  .atlas__count { margin-left: 0; width: 100%; }
}

@media (max-width: 640px) {
  /* Side-by-side call-to-action buttons do not fit a small phone; full-width
     stacked buttons also give a larger tap target. */
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { width: 100%; }

  /* Label over value reads better than a squeezed two-column row, and gives
     the long prose values room without clipping or a horizontal scroll. */
  .equiv__row {
    flex-direction: column;
    align-items: stretch;
    gap: var(--s-1);
    padding: var(--s-3) 0;
  }
  .equiv__value { margin-left: 0; text-align: left; }

  /* The equation blocks scroll horizontally; make them need to less often. */
  .equation {
    padding: var(--s-3) var(--s-4);
    font-size: var(--t--2);
    line-height: var(--lh-body);
  }
}

/* ============================================================================
   Reduced motion
   ========================================================================= */

@media (prefers-reduced-motion: reduce) {
  .hero__cue-bar::after,
  .specimen__glow,
  .strip__dot { animation: none; }
  .specimen:hover { transform: none; }
  .specimen:hover .specimen__art svg { transform: none; }
  .js .reveal { opacity: 1; transform: none; }
}