/* ==========================================================================
   zfc.css — "The Z fc Watch": a status board for the coloured Nikon Z fc
   bodies. Loads AFTER exhibit-page.css and reuses its tokens, washes,
   grain, nav, footer, focus rings and html.evening dark theme.

   This sheet adds: the theme-toggle styling (exhibit-page.css never styles
   the gallery.js-injected button), the freshness pulse, the colour cards
   with their status pills, the change log, and dark-theme + reduced-motion
   coverage for all of it.

   STATUS COLOUR IS NEVER THE ONLY SIGNAL. Every pill carries a glyph and a
   word as well as a hue, and "unknown" is deliberately built to look like
   nothing else on the page — a dashed, gold, question-marked pill with a
   plain-English line underneath — because a watcher that has gone blind
   must never be mistaken for one calmly reporting "still out of stock".
   ========================================================================== */

:root {
  --mat: #fbf7ee; /* exhibit-page.css only defines --mat in evening */
  --hairline: rgba(46, 58, 72, 0.16);

  /* Status pigments. Backgrounds are low-alpha tints so --ink stays the
     text colour and clears AA comfortably in both themes. */
  --in-ink: #3f6b57;
  --in-wash: rgba(147, 180, 139, 0.3);
  --in-edge: #93b48b;

  --out-wash: rgba(46, 58, 72, 0.07);
  --out-edge: rgba(46, 58, 72, 0.3);

  --unk-ink: #7a6420;
  --unk-wash: rgba(205, 184, 120, 0.32);
  --unk-edge: #a8924f;

  --setup-ink: #7c6aa6;
  --setup-wash: rgba(162, 146, 196, 0.26);
  --setup-edge: #a292c4;
}

html.evening {
  --mat: #2b3140;
  --in-ink: #b7d6ad;
  --in-wash: rgba(147, 180, 139, 0.22);
  --in-edge: #93b48b;

  --out-wash: rgba(233, 227, 211, 0.07);
  --out-edge: rgba(233, 227, 211, 0.26);

  --unk-ink: #e3cd8d;
  --unk-wash: rgba(205, 184, 120, 0.2);
  --unk-edge: #cdb878;

  --setup-ink: #cbbce6;
  --setup-wash: rgba(162, 146, 196, 0.2);
  --setup-edge: #a292c4;
}

/* ==========================================================================
   Theme toggle — gallery.js injects it into .exhibit-nav (echoes lab.css).
   ========================================================================== */

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-left: 1rem;
  flex-shrink: 0;
  padding: 0;
  border: 1px solid rgba(46, 58, 72, 0.35);
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.25s ease, background-color 0.25s ease, color 0.25s ease;
}

.theme-toggle:hover {
  border-color: var(--pond-ink);
  background-color: rgba(127, 168, 201, 0.14);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--pond-deep);
  outline-offset: 3px;
}

html.evening .theme-toggle {
  border-color: rgba(233, 227, 211, 0.32);
}

html.evening .theme-toggle:hover {
  border-color: var(--pond-ink);
  background-color: rgba(159, 194, 224, 0.16);
}

html.evening .theme-toggle:focus-visible {
  outline-color: var(--pond-ink);
}

/* The nav keeps the back-link legible when the toggle joins it on a phone */
.exhibit-nav .back-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

/* ==========================================================================
   Freshness pulse — the honesty bar. States: live / stale / never run.
   ========================================================================== */

.zfc-pulse {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.8rem;
  margin: 0 0 2.2rem;
  padding: 0.9rem 1.1rem;
  border-left: 3px solid var(--pond);
  border-radius: 2px 10px 10px 2px;
  background: rgba(127, 168, 201, 0.1);
  font-size: 0.95rem;
  line-height: 1.6;
}

.zfc-pulse-dot {
  width: 0.55rem;
  height: 0.55rem;
  flex: none;
  border-radius: 50%;
  background: var(--sage);
  align-self: center;
}

.zfc-pulse-main {
  font-weight: 500;
  color: var(--ink);
}

.zfc-pulse-sub {
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.zfc-pulse[data-freshness="stale"] {
  border-left-color: var(--gold);
  background: rgba(205, 184, 120, 0.16);
}

.zfc-pulse[data-freshness="stale"] .zfc-pulse-dot {
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(205, 184, 120, 0.25);
}

.zfc-pulse[data-freshness="never"] {
  border-left-color: var(--wisteria);
  background: rgba(162, 146, 196, 0.14);
}

.zfc-pulse[data-freshness="never"] .zfc-pulse-dot,
.zfc-pulse[data-freshness="error"] .zfc-pulse-dot {
  background: var(--wisteria);
}

.zfc-pulse[data-freshness="error"] {
  border-left-color: var(--rose);
  background: rgba(217, 139, 160, 0.14);
}

/* ==========================================================================
   Section headings
   ========================================================================== */

.zfc-h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.6rem, 4.5vw, 2.1rem);
  line-height: 1.2;
  color: var(--ink);
  margin: 0 0 0.35rem;
}

.zfc-h2-note {
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin: 0 0 1.4rem;
  max-width: 40em;
}

/* ==========================================================================
   The colour cards
   ========================================================================== */

.zfc-grid {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 0 0 clamp(2.5rem, 6vw, 4rem);
  padding: 0;
}

@media (min-width: 40rem) {
  .zfc-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.zfc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.15rem 1.2rem 1.25rem;
  border: 1px solid var(--hairline);
  border-radius: 4px 16px 6px 14px / 14px 5px 16px 6px; /* a wet, uneven edge */
  background: var(--mat);
  box-shadow: 0 1px 0 rgba(46, 58, 72, 0.04);
}

.zfc-card-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

/* A dab of the body's own colour, painted rather than printed */
.zfc-swatch {
  width: 1.5rem;
  height: 1.5rem;
  flex: none;
  border-radius: 54% 46% 58% 42% / 44% 56% 46% 54%;
  background: var(--swatch, var(--pond));
  box-shadow: inset 0 0 0 1px rgba(46, 58, 72, 0.18);
}

.zfc-name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.35rem;
  line-height: 1.2;
  color: var(--ink);
  margin: 0;
}

/* ---------- Status pills ---------- */

.zfc-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  align-self: flex-start;
  margin: 0;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--out-edge);
  border-radius: 999px;
  background: var(--out-wash);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.zfc-pill-glyph {
  font-size: 0.95em;
  line-height: 1;
}

.zfc-card[data-status="in_stock"] .zfc-pill {
  border-color: var(--in-edge);
  background: var(--in-wash);
}

.zfc-card[data-status="in_stock"] {
  border-color: var(--in-edge);
  box-shadow: 0 0 0 1px var(--in-edge), 0 6px 20px -16px rgba(63, 107, 87, 0.8);
}

/* UNKNOWN: dashed, gold, question-marked. Nothing else on the page is
   dashed, so "the watcher cannot read this" never reads as "sold out". */
.zfc-card[data-status="unknown"] .zfc-pill {
  border-style: dashed;
  border-width: 2px;
  border-color: var(--unk-edge);
  background: var(--unk-wash);
}

.zfc-card[data-status="unknown"] {
  border-style: dashed;
  border-color: var(--unk-edge);
}

.zfc-card[data-status="unconfigured"] .zfc-pill {
  border-color: var(--setup-edge);
  background: var(--setup-wash);
}

.zfc-card[data-status="unconfigured"] {
  border-color: var(--setup-edge);
}

/* ---------- Card body ---------- */

.zfc-price {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 400;
  color: var(--ink);
}

.zfc-price-none {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--ink-soft);
}

.zfc-was {
  font-size: 0.85rem;
  color: var(--ink-soft);
  text-decoration: line-through;
  margin-left: 0.45rem;
}

.zfc-meta {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--ink-soft);
}

.zfc-why {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--ink-soft);
}

.zfc-why code {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.92em;
  padding: 0.05em 0.35em;
  border-radius: 3px;
  background: rgba(46, 58, 72, 0.07);
}

html.evening .zfc-why code {
  background: rgba(233, 227, 211, 0.1);
}

/* The plain-English line that keeps "unknown" from reading as "out of stock" */
.zfc-caveat {
  margin: 0;
  padding: 0.55rem 0.7rem;
  border-left: 2px solid var(--unk-edge);
  border-radius: 1px 7px 7px 1px;
  background: var(--unk-wash);
  color: var(--ink);
  font-size: 0.84rem;
  line-height: 1.55;
}

.zfc-card[data-status="unconfigured"] .zfc-caveat {
  border-left-color: var(--setup-edge);
  background: var(--setup-wash);
}

/* ---------- Sparkline ---------- */

.zfc-spark {
  display: block;
  width: 100%;
  max-width: 11rem;
  height: 2.2rem;
  overflow: visible;
}

.zfc-spark-line {
  fill: none;
  stroke: var(--pond-deep);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

html.evening .zfc-spark-line {
  stroke: var(--pond-ink);
}

.zfc-spark-dot {
  fill: var(--rose);
}

/* ---------- The link out ---------- */

.zfc-link {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  min-height: 44px;
  margin-top: 0.15rem;
  padding: 0.3rem 0;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--pond-ink);
  border-bottom: 1px solid rgba(69, 106, 143, 0.4);
  transition: color 0.25s ease, border-color 0.25s ease;
}

.zfc-link:hover {
  color: var(--ink);
  border-color: var(--ink);
}

html.evening .zfc-link {
  border-bottom-color: rgba(159, 194, 224, 0.45);
}

/* ==========================================================================
   Empty / error states
   ========================================================================== */

.zfc-note {
  margin: 0 0 clamp(2.5rem, 6vw, 4rem);
  padding: 1.4rem 1.5rem;
  border: 1px dashed var(--hairline);
  border-radius: 6px 18px 8px 16px / 16px 7px 18px 8px;
  background: var(--mat);
}

.zfc-note-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--ink);
  margin: 0 0 0.4rem;
}

.zfc-note p {
  margin: 0 0 0.5rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.zfc-note p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Change log
   ========================================================================== */

.zfc-log {
  list-style: none;
  margin: 0 0 clamp(2.5rem, 6vw, 4rem);
  padding: 0;
  border-left: 1px solid var(--hairline);
}

.zfc-log-item {
  position: relative;
  padding: 0.55rem 0 0.55rem 1.35rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--ink);
}

.zfc-log-item::before {
  content: "";
  position: absolute;
  left: -0.3rem;
  top: 1.1rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--ink-soft);
}

.zfc-log-item[data-kind="in_stock"]::before { background: var(--in-edge); }
.zfc-log-item[data-kind="price"]::before { background: var(--rose); }
.zfc-log-item[data-kind="unknown"]::before { background: var(--unk-edge); }

.zfc-log-when {
  display: block;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.zfc-log-what strong {
  font-weight: 600;
}

/* ==========================================================================
   Entrance — a soft bloom, skipped entirely under reduced motion.
   (The shared .reveal class is NOT used on rendered-in nodes: gallery.js
   only observes elements present at load, so a .reveal added later would
   stay at opacity 0 forever.)
   ========================================================================== */

@keyframes zfc-bloom {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

html.js .zfc-card,
html.js .zfc-log-item {
  animation: zfc-bloom 0.55s ease both;
}

@media (prefers-reduced-motion: reduce) {
  html.js .zfc-card,
  html.js .zfc-log-item {
    animation: none;
  }

  .zfc-pulse-dot,
  .zfc-link,
  .theme-toggle {
    transition: none;
  }
}

/* ==========================================================================
   Narrow phones
   ========================================================================== */

@media (max-width: 24rem) {
  .zfc-card {
    padding: 1rem;
  }

  .zfc-name {
    font-size: 1.2rem;
  }

  .zfc-pill {
    font-size: 0.74rem;
    letter-spacing: 0.06em;
  }
}