styles.css

/*
 * chromatic-gallery
 *
 * Theme by overriding the custom properties on .cg-root (or any ancestor).
 * Dark mode follows prefers-color-scheme, a .dark class or data-theme="dark"
 * on an ancestor, or the colorScheme prop.
 */

.cg-root {
  /* Colour tokens resolve against the element's color-scheme, set below. */
  --cg-fg: light-dark(#171717, #ffffff);
  --cg-fg-muted: light-dark(#525252, #d4d4d4);
  --cg-fg-subtle: light-dark(#737373, #a3a3a3);
  --cg-fg-faint: light-dark(#a3a3a3, #525252);
  --cg-surface: light-dark(#ffffff, #171717);
  --cg-surface-muted: light-dark(#f5f5f5, #171717);
  --cg-surface-hover: light-dark(#fafafa, rgba(38, 38, 38, 0.5));
  --cg-surface-active: light-dark(#f5f5f5, #262626);
  --cg-pill-active: light-dark(#ffffff, #262626);
  --cg-tile-bg: light-dark(#e5e5e5, #262626);
  --cg-border: light-dark(#e5e5e5, #404040);
  --cg-border-strong: light-dark(#a3a3a3, #737373);
  --cg-divider: light-dark(#f5f5f5, #262626);
  --cg-accent: light-dark(#171717, #f5f5f5);
  --cg-accent-fg: light-dark(#ffffff, #171717);
  --cg-ring: light-dark(rgba(0, 0, 0, 0.1), rgba(255, 255, 255, 0.15));
  --cg-badge: #3b82f6;
  --cg-gap: 1.5rem;
  --cg-bento-gap: 0.5rem;
  --cg-tile-radius: 2px;
  --cg-section-gap: 3rem;
  --cg-z-popover: 40;
  --cg-z-lightbox: 100;

  display: flex;
  flex-direction: column;
  gap: var(--cg-section-gap);
  color: var(--cg-fg);
  font-family: inherit;
}

/*
 * auto:  follows prefers-color-scheme; a .dark/.light class or data-theme
 *        attribute on an ancestor overrides it.
 * class: light unless an ancestor has .dark or data-theme="dark" (Tailwind's
 *        class strategy, next-themes and similar).
 */
.cg-root[data-color-scheme="auto"] { color-scheme: light dark; }
.cg-root[data-color-scheme="light"],
.cg-root[data-color-scheme="class"],
:where(.light, [data-theme="light"]) .cg-root[data-color-scheme="auto"] { color-scheme: light; }
.cg-root[data-color-scheme="dark"],
:where(.dark, [data-theme="dark"]) .cg-root:is([data-color-scheme="auto"], [data-color-scheme="class"]) {
  color-scheme: dark;
}

.cg-root *,
.cg-lightbox * {
  box-sizing: border-box;
}

.cg-root button,
.cg-lightbox button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  margin: 0;
  padding: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.cg-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.cg-icon-xs { width: 0.875rem; height: 0.875rem; }
.cg-icon-sm { width: 1rem; height: 1rem; }

/* Responsive visibility: phones below 768px, everything else above. */
.cg-desktop-only { display: none !important; }
@media (min-width: 768px) {
  .cg-desktop-only { display: inline-flex !important; }
  .cg-mobile-only { display: none !important; }
}

/* ---------- Controls ---------- */

.cg-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cg-filters,
.cg-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cg-actions { margin-left: auto; }

.cg-trigger {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--cg-border) !important;
  border-radius: 9999px;
  padding: 0.5rem 1rem !important;
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--cg-fg-muted) !important;
  transition: border-color 0.2s, background-color 0.2s, color 0.2s;
}
.cg-trigger:hover { border-color: var(--cg-border-strong) !important; }
.cg-trigger.is-active {
  border-color: var(--cg-accent) !important;
  background: var(--cg-accent) !important;
  color: var(--cg-accent-fg) !important;
}

.cg-chevron { transition: transform 0.2s; }
.cg-chevron.is-open { transform: rotate(180deg); }

.cg-badge {
  position: absolute;
  top: -0.25rem;
  right: -0.25rem;
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 9999px;
  border: 2px solid var(--cg-surface);
  background: var(--cg-badge);
}

.cg-popover { position: relative; }

.cg-popover-panel {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: var(--cg-z-popover);
  margin-top: 0.5rem;
  border: 1px solid var(--cg-border);
  border-radius: 0.75rem;
  background: var(--cg-surface);
  padding: 0.375rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}
.cg-popover-panel-wide { width: 15rem; }

.cg-options {
  display: flex;
  flex-direction: column;
  min-width: 10rem;
}

.cg-option {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem !important;
  text-align: left;
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--cg-fg-muted) !important;
  transition: background-color 0.15s, color 0.15s;
}
.cg-option:hover { background: var(--cg-surface-hover) !important; }
.cg-option.is-active {
  background: var(--cg-surface-active) !important;
  color: var(--cg-fg) !important;
  font-weight: 500;
}

.cg-sections { display: flex; flex-direction: column; gap: 0.75rem; }
.cg-section-divided { border-top: 1px solid var(--cg-divider); padding-top: 0.5rem; }
.cg-section-label {
  margin: 0;
  padding: 0 0.5rem 0.25rem;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--cg-fg-faint);
}

.cg-swatch {
  display: block;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: 9999px;
  box-shadow: inset 0 0 0 1px var(--cg-ring);
  transition: background-color 0.3s;
}
.cg-swatch-sm { width: 0.75rem; height: 0.75rem; }
.cg-swatch-md { width: 0.875rem; height: 0.875rem; }
.cg-swatch-lg { width: 1.25rem; height: 1.25rem; margin-bottom: 0.25rem; }

/* Tone wheel */

.cg-wheel-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 0.25rem;
}

.cg-wheel {
  position: relative;
  cursor: pointer;
  touch-action: none;
  user-select: none;
  outline: none;
  border-radius: 9999px;
}
.cg-wheel:focus-visible { box-shadow: 0 0 0 2px var(--cg-accent); }

.cg-wheel-ring {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: 9999px;
  transition: transform 0.3s ease-out;
}
.cg-wheel-ring.is-dragging { transform: scale(1.04); }

.cg-wheel-well {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  background: var(--cg-surface);
  text-align: center;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
}
.cg-wheel-label { font-size: 0.75rem; font-weight: 500; color: var(--cg-fg); }
.cg-wheel-hint { font-size: 10px; color: var(--cg-fg-faint); }

.cg-wheel-knob {
  pointer-events: none;
  position: absolute;
  width: 1.5rem;
  height: 1.5rem;
  transform: translate(-50%, -50%);
  border-radius: 9999px;
  border: 2px solid var(--cg-surface);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease-out;
}

.cg-chips { display: flex; align-items: center; gap: 0.5rem; }

.cg-chip {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  border: 1px solid var(--cg-border) !important;
  border-radius: 9999px;
  padding: 0.25rem 0.75rem !important;
  font-size: 0.75rem;
  line-height: 1rem;
  color: var(--cg-fg-muted) !important;
  transition: border-color 0.2s, background-color 0.2s, color 0.2s;
}
.cg-chip:hover { border-color: var(--cg-border-strong) !important; }
.cg-chip.is-active {
  border-color: var(--cg-accent) !important;
  background: var(--cg-accent) !important;
  color: var(--cg-accent-fg) !important;
}

/* View switcher and shuffle */

.cg-switcher {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  border-radius: 9999px;
  background: var(--cg-surface-muted);
  padding: 0.25rem;
}

.cg-switcher-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 9999px;
  padding: 0.375rem 0.75rem !important;
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 500;
  color: var(--cg-fg-subtle) !important;
  transition: all 0.3s ease-out;
}
@media (min-width: 640px) {
  .cg-switcher-btn { padding: 0.375rem 1rem !important; }
}
.cg-switcher-btn:hover { color: var(--cg-fg-muted) !important; }
.cg-switcher-btn.is-active {
  background: var(--cg-pill-active) !important;
  color: var(--cg-fg) !important;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.cg-shuffle {
  display: flex;
  width: 2.25rem;
  height: 2.25rem;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  background: var(--cg-surface-muted) !important;
  color: var(--cg-fg-subtle) !important;
  transition: color 0.15s;
}
.cg-shuffle:hover { color: var(--cg-fg) !important; }

.cg-ellipsis {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  width: 1rem;
  height: 1rem;
}
.cg-ellipsis > span {
  width: 0.25rem;
  height: 0.25rem;
  border-radius: 9999px;
  background: currentColor;
  animation: cg-bounce 1s infinite;
}
.cg-ellipsis > span:nth-child(1) { animation-delay: -0.3s; }
.cg-ellipsis > span:nth-child(2) { animation-delay: -0.15s; }

/* ---------- Layouts ---------- */

.cg-divider { height: 1px; background: var(--cg-divider); }

.cg-empty {
  margin: 0;
  padding: 6rem 0;
  text-align: center;
  color: var(--cg-fg-faint);
}

.cg-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--cg-gap);
}
@media (min-width: 768px) {
  .cg-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 1024px) {
  .cg-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.cg-columns { display: flex; gap: var(--cg-gap); }
.cg-column { flex: 1 1 0%; min-width: 0; display: flex; flex-direction: column; gap: var(--cg-gap); }
/* Cancels the column gap above it, so the sentinel adds no height. */
.cg-column-sentinel { height: 1px; margin-top: calc(-1 * var(--cg-gap) - 1px); }

/* Square row tracks sized from the container, so single tiles are exact
   squares and spanning tiles are clean multiples. */
.cg-bento-wrap { container-type: inline-size; }
.cg-bento {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-auto-flow: row dense;
  grid-auto-rows: calc((100cqw - var(--cg-bento-gap)) / 2);
  gap: var(--cg-bento-gap);
}
.cg-span-tall { grid-row: span 2 / span 2; }
.cg-span-wide { grid-column: span 2 / span 2; }

.cg-timeline { display: flex; flex-direction: column; gap: 4rem; }
.cg-timeline-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.cg-timeline-head h2 {
  margin: 0;
  white-space: nowrap;
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--cg-fg-subtle);
}
.cg-timeline-head span { font-size: 0.75rem; color: var(--cg-fg-faint); }
.cg-rule { flex: 1 1 0%; height: 1px; background: var(--cg-divider); }

.cg-sentinel { height: 1px; width: 100%; margin-top: calc(-1 * var(--cg-section-gap)); }

/* ---------- Tiles ---------- */

.cg-tile {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  border-radius: var(--cg-tile-radius);
  background: var(--cg-surface-muted) !important;
  transition: transform 0.3s ease-out;
}
.cg-tile:hover { transform: scale(1.05); }
.cg-tile:focus { outline: none; }
.cg-tile:focus-visible { box-shadow: 0 0 0 2px var(--cg-accent); }
.cg-tile-grid { aspect-ratio: 1 / 1; }
.cg-tile-bento { height: 100%; }

.cg-tile-frame {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--cg-tile-bg);
  opacity: 0.2;
  transition: opacity 1s;
}
.cg-tile-frame.is-loaded { opacity: 1; }

.cg-tile-img {
  display: block;
  width: 100%;
  height: auto;
  filter: blur(24px);
  transform: scale(1.1);
  transition: filter 1s, transform 1s;
}
.cg-tile-img.is-loaded { filter: none; transform: none; }
.cg-tile:hover .cg-tile-img.is-loaded { filter: brightness(1.1); }
.cg-tile-img.cg-cover {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cg-tile-letter {
  display: flex;
  aspect-ratio: 1 / 1;
  align-items: center;
  justify-content: center;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2.25rem;
  color: var(--cg-border-strong);
}

.cg-shimmer {
  pointer-events: none;
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.15), transparent);
  animation: cg-shimmer 1.6s ease-in-out infinite;
}

.cg-tile-shade {
  pointer-events: none;
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  transition: background-color 0.3s ease-out;
}
.cg-tile:hover .cg-tile-shade { background: rgba(0, 0, 0, 0.1); }

.cg-tile-caption {
  pointer-events: none;
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 1rem;
  text-align: left;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
  opacity: 0;
  transition: opacity 0.3s ease-out;
}
.cg-tile:hover .cg-tile-caption { opacity: 1; }
.cg-tile-caption p {
  margin: 0;
  color: #ffffff;
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

/* ---------- Lightbox (portalled to <body>, always dark) ---------- */

.cg-lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--cg-z-lightbox, 100);
  width: 100%;
  height: 100dvh;
  max-height: 100dvh;
  overflow: hidden;
  touch-action: none;
  color: #ffffff;
  font-family: inherit;
}

.cg-lb-backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: rgba(0, 0, 0, 0.93) !important;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.cg-lb-close {
  position: absolute;
  top: calc(1rem + env(safe-area-inset-top, 0px));
  right: calc(1rem + env(safe-area-inset-right, 0px));
  z-index: 30;
  padding: 0.75rem !important;
  border-radius: 9999px;
  color: rgba(255, 255, 255, 0.65) !important;
  transition: background-color 0.2s ease-out, color 0.2s ease-out;
}
.cg-lb-close:hover { background: rgba(255, 255, 255, 0.1) !important; color: #ffffff !important; }
.cg-lb-close-icon { width: 1.75rem; height: 1.75rem; }

.cg-lb-nav {
  pointer-events: none;
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.25rem;
}
@media (min-width: 768px) {
  .cg-lb-nav { padding: 0 1.25rem; }
}

.cg-lb-step {
  pointer-events: auto;
  border-radius: 9999px;
  padding: 0.625rem !important;
  color: rgba(255, 255, 255, 0.45) !important;
  transition: background-color 0.2s ease-out, color 0.2s ease-out;
}
.cg-lb-step:hover { background: rgba(255, 255, 255, 0.1) !important; color: #ffffff !important; }
.cg-lb-step-icon { width: 2.25rem; height: 2.25rem; }
@media (min-width: 768px) {
  .cg-lb-step { padding: 0.75rem !important; }
  .cg-lb-step-icon { width: 2.5rem; height: 2.5rem; }
}

.cg-lb-stage { position: absolute; inset: 0; z-index: 10; }

.cg-lb-photo {
  position: absolute;
  inset: 0;
  animation: cg-photo-in 0.4s ease-out both;
}

.cg-lb-img { object-fit: contain; user-select: none; -webkit-user-drag: none; }

.cg-lb-letter {
  display: flex;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 6rem;
  color: #262626;
}

.cg-lb-inspector {
  position: absolute;
  right: calc(0.75rem + env(safe-area-inset-right, 0px));
  bottom: calc(0.75rem + env(safe-area-inset-bottom, 0px));
  z-index: 30;
  box-sizing: border-box;
  width: max-content;
  /* Relative to the lightbox, not 100vw: Safari's 100vw includes a classic scrollbar. */
  max-width: min(20rem, calc(100% - 1.5rem));
  overflow-wrap: anywhere;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0.5rem;
  background: rgba(0, 0, 0, 0.55);
  padding: 0.875rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
@media (min-width: 768px) {
  .cg-lb-inspector { bottom: calc(1.25rem + env(safe-area-inset-bottom, 0px)); padding: 1rem; }
}

.cg-lb-category {
  margin: 0;
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.45);
}

.cg-lb-location {
  margin: 0.5rem 0 0;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.55);
}
.cg-lb-pin { margin-top: 0.125rem; width: 0.875rem; height: 0.875rem; flex-shrink: 0; color: rgba(255, 255, 255, 0.4); }

/* ---------- Motion ---------- */

@keyframes cg-shimmer {
  100% { transform: translateX(100%); }
}

@keyframes cg-photo-in {
  from { opacity: 0; transform: scale(0.985); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes cg-bounce {
  0%, 100% { transform: translateY(-25%); animation-timing-function: cubic-bezier(0.8, 0, 1, 1); }
  50% { transform: none; animation-timing-function: cubic-bezier(0, 0, 0.2, 1); }
}

@media (prefers-reduced-motion: reduce) {
  .cg-shimmer,
  .cg-ellipsis > span,
  .cg-lb-photo { animation: none; }
  .cg-tile,
  .cg-tile-img,
  .cg-tile-frame { transition: none; }
  .cg-tile:hover { transform: none; }
}