/* Dogs of Wakefield — portrait gallery
   The portraits are loud and colourful, so the page around them stays quiet. */

:root {
  --bg: #2c2c2f;
  --surface: #3a3a3e;
  --ink: #ffffff;
  --ink-soft: #b6b6bc;
  --line: #4a4a4f;
  --shadow: 0 0 0;
  --focus: #7aa5ff;
  --radius: 14px;
  --font-display: "Inter", system-ui, sans-serif;
  /* Facebook brand blue is #1877f2, but white text on it only reaches 4.23:1.
     Nudged one step darker to clear WCAG AA (4.5:1) while still reading as
     Facebook blue. */
  --messenger-blue: #166fe5;
  --messenger-blue-hover: #0b5fcc;


  /* Matches scrollbars and any native UI to the dark page. */
  color-scheme: dark;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 ui-rounded, "Segoe UI", system-ui, -apple-system, sans-serif;
}
h2 {
  margin: 0.3em;
}

/* ---------- Masthead ---------- */

/* Inter covers the whole masthead — the title and the count beneath it. */
.masthead {
  text-align: center;
  font-family: var(--font-display);
}

/* Edge to edge. The source is 1024x320, so the height is capped at its native
   320px — past that it would just upscale. */
.masthead__image {
  display: block;
  width: 100%;
  height: clamp(150px, 24vw, 320px);
  object-fit: cover;
  object-position: center;
}

.masthead__text {
  padding: clamp(1.5rem, 4vw, 2.5rem) 1.25rem 1.5rem;
}

.masthead h1 {
  margin: 0;
  /* Inter is a variable face spanning 100–900, so a real heavy weight is
     available here, and it wants slightly negative tracking at display size. */
  font-weight: 600;
  font-size: clamp(2rem, 6vw, 3.25rem);
  letter-spacing: -0.022em;
  line-height: 1.1;
  margin-bottom: 0.3em;
}

.masthead__count {
  margin: 0.5rem 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
  display: flex;
  justify-content: center;
  gap: 0.5rem;   /* space between "52 portraits ·" and "4 remembered" */
}

.site-footer {
  padding: 0 1.25rem 3.5rem;
  text-align: center;
}

/* Understated on purpose — the portraits should still be the loudest thing. */
.messenger-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  padding: 0.5em 1em;
  border-radius: 999px;
  background: var(--messenger-blue);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 150ms ease, transform 150ms ease;
}

.messenger-link__icon {
  width: 1.25em;
  height: 1.25em;
  fill: currentColor;
}

.messenger-link:hover {
  background: var(--messenger-blue-hover);
  transform: translateY(-1px);
}

.messenger-link:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

/* inline-flex centres the rainbow against the text without relying on
   vertical-align, which is finicky at this size. */
.masthead__remembered {
  display: inline-flex;
  white-space: nowrap;   /* keeps the icon from wrapping away from the number */
  justify-content: center;
}

/* Masthead rainbow only. Scoped so tweaking it here leaves the modal's copy
   alone. Sizes are in em, so they track the surrounding text. */
.masthead__remembered .rainbow-key {
  display: flex;
  justify-items: center;
  margin-right: 1em;
}

/* ---------- Grid ---------- */

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(210px, 100%), 1fr));
  gap: clamp(1rem, 3vw, 1.75rem);
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2.5rem) 3rem;
  list-style: none;
}

.card {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: center;
  cursor: pointer;
}

.card__frame {
  display: block;
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface);
  /* Carried deliberately heavy — a soft shadow disappears against the grey. */
  box-shadow: 0 1px 2px rgb(var(--shadow) / 0.30), 0 6px 18px rgb(var(--shadow) / 0.26);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.card__frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card:hover .card__frame,
.card:focus-visible .card__frame {
  transform: translateY(-4px);
  box-shadow: 0 2px 4px rgb(var(--shadow) / 0.36), 0 14px 30px rgb(var(--shadow) / 0.42);
}

.card:focus { outline: none; }

.card:focus-visible .card__frame {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

/* Name sits between two equal slots so it stays optically centred whether or
   not the dog has a rainbow. */
.card__caption {
  display: grid;
  /* Both side columns match .card__rainbow so the name stays centred. */
  grid-template-columns: 1.9rem auto 1.9rem;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  margin-top: 0.7rem;
}

.card__name {
  grid-column: 2;
  font-size: 1.02rem;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.card__rainbow {
  grid-column: 3;
  width: 1.9rem;
  height: 1.9rem;
}

/* ---------- Rainbow ---------- */

/* Both rules point at rainbow.svg; its colours live inside the file. */
.rainbow {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Copy used inline in the footer key and the modal caption. Sized in em so it
   tracks the surrounding text; the 4:3 ratio matches the artwork. */
.rainbow-key {
  display: inline-block;
  width: 1.8em;
  height: 1.35em;
}

.rainbow-big {
  width: 4em;
  height: auto;
  aspect-ratio: auto;
}

.empty {
  padding: 3rem 1.25rem;
  color: var(--ink-soft);
  text-align: center;
}

/* ---------- Modal ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: clamp(0.75rem, 3vw, 2rem);
}

.lightbox[hidden] { display: none; }

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgb(12 10 8 / 0.72);
  backdrop-filter: blur(3px);
  animation: fade 180ms ease;
}

.lightbox__dialog {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(0.25rem, 2vw, 1rem);
  width: min(100%, 1100px);
  max-height: 100%;
  animation: rise 200ms ease;
}

.lightbox__figure {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  margin: 0;
}

.lightbox__image {
  display: block;
  width: auto;
  max-width: 100%;
  /* Leave headroom for the caption and the page padding. */
  max-height: min(72vh, 760px);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 24px 60px rgb(0 0 0 / 0.45);
}

.lightbox__caption {
  color: #fff;
  text-align: center;
}

.lightbox__name {
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.lightbox__memorial {
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;

}

.lightbox__memorial[hidden] { display: none; }

/* Modal buttons */

.lightbox__close,
.lightbox__nav {
  display: grid;
  place-items: center;
  flex: none;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgb(255 255 255 / 0.12);
  color: #fff;
  cursor: pointer;
  transition: background 150ms ease, transform 150ms ease;
}

.lightbox__close svg,
.lightbox__nav svg {
  width: 55%;
  height: 55%;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.lightbox__close {
  position: absolute;
  top: -0.5rem;
  right: -0.5rem;
  z-index: 1;
  width: 2.5rem;
  height: 2.5rem;
}

.lightbox__nav {
  width: clamp(2.5rem, 5vw, 3.25rem);
  height: clamp(2.5rem, 5vw, 3.25rem);
}

/* display:grid above would otherwise defeat the hidden attribute. */
.lightbox__nav[hidden] { display: none; }

.lightbox__close:hover,
.lightbox__nav:hover {
  background: rgb(255 255 255 / 0.24);
  transform: scale(1.06);
}

.lightbox__close:focus-visible,
.lightbox__nav:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

/* ---------- Utility ---------- */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.6rem 1rem;
  background: var(--surface);
  color: var(--ink);
  border-radius: 0 0 var(--radius) 0;
}

.skip-link:focus {
  left: 0;
  z-index: 20;
}

body.is-locked { overflow: hidden; }

@keyframes fade {
  from { opacity: 0; }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px) scale(0.99); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* On narrow screens the arrows move below the image so the portrait keeps
   the full width. */
@media (max-width: 640px) {
  .lightbox__dialog { flex-wrap: wrap; justify-content: center; }
  .lightbox__figure { flex-basis: 100%; order: -1; }
  .lightbox__image { max-height: 62vh; }
}