/* Public gallery — the page visitors and crawlers see.
   Deliberately separate from styles.css (the studio): this page must stay small
   and fast, since it's the one being measured for search ranking. */

:root {
  --bg: #f6f7f9;
  --bg-elev: #ffffff;
  --bg-sunken: #eceef2;
  --fg: #12151c;
  --fg-dim: #5b6272;
  --line: #dfe3ea;
  --accent: #3b6ef6;
  --accent-fg: #ffffff;
  --kofi: #e0576a;
  --radius: 14px;
  --safe-l: env(safe-area-inset-left, 0px);
  --safe-r: env(safe-area-inset-right, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0f14;
    --bg-elev: #171a21;
    --bg-sunken: #05070a;
    --fg: #eef1f6;
    --fg-dim: #949cad;
    --line: #262b35;
    --accent: #6d95ff;
    --accent-fg: #07101f;
    --kofi: #ff7d90;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", system-ui, sans-serif;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body.locked { overflow: hidden; }

h1, h2 { margin: 0; font-weight: 650; letter-spacing: -0.02em; line-height: 1.2; }

img { max-width: 100%; }

svg {
  width: 20px; height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}

a { color: var(--accent); }

/* Anything that also carries .wrap must set padding-block, never the `padding`
   shorthand — the shorthand resets padding-inline and drops the gutter. */
.wrap {
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: max(18px, var(--safe-l)) max(18px, var(--safe-r));
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--accent-fg);
  z-index: 100;
}

.skip:focus { left: 8px; top: 8px; }

/* ---------- masthead ---------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 30;
  padding-top: var(--safe-t);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.masthead .wrap {
  height: 58px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand { display: flex; align-items: center; gap: 9px; margin-right: auto; }
.brand-name { font-weight: 700; font-size: 18px; letter-spacing: -0.02em; }

.brand-mark {
  width: 22px; height: 22px;
  border-radius: 7px;
  background: linear-gradient(140deg, #6d95ff, #b06dff 55%, #ff7a9c);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .25);
}

.kofi-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--kofi);
  color: #fff;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  touch-action: manipulation;
}

.kofi-btn:active { transform: translateY(1px); }
.kofi-btn svg { width: 18px; height: 18px; }

@media (max-width: 460px) {
  /* Keep the coffee cup, drop the words — the header must not wrap. */
  .kofi-btn span { display: none; }
  .kofi-btn { padding: 0; width: 40px; justify-content: center; }
}

/* ---------- intro ---------- */

.intro { padding-block: 44px 30px; max-width: 760px; margin-inline: auto; }
.intro h1 { font-size: clamp(30px, 7vw, 46px); }
.lede { color: var(--fg-dim); font-size: clamp(16px, 2.4vw, 18px); margin: 14px 0 0; }
.counts { color: var(--fg-dim); font-size: 14px; margin: 16px 0 0; }
.licence-line { color: var(--fg-dim); font-size: 13px; margin: 16px 0 0; }

.intro-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev);
  color: var(--fg);
  font: inherit;
  font-size: 15px;
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
}

.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: transparent; }
.btn:disabled { opacity: .55; cursor: default; }

@media (max-width: 460px) { .intro-actions .btn { flex: 1 1 100%; } }

/* ---------- gallery ---------- */

/* minmax(0, 1fr) rather than 1fr: a grid item's automatic minimum size is its
   min-content width, so a long caption or a wide image would otherwise push the
   track past the viewport and give the whole page a horizontal scrollbar. */
.gallery {
  padding-block: 10px 40px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
}

@media (min-width: 620px) { .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; } }
@media (min-width: 1000px) { .gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

.gallery-empty { grid-column: 1 / -1; text-align: center; color: var(--fg-dim); padding: 40px 0; }

/* No content-visibility here on purpose. It was measured at 66 photos on a
   4x-throttled phone profile and made no difference (2403ms vs 2407ms of scroll
   work, zero long tasks either way) — loading="lazy" already defers the
   expensive part — while its size estimates made the scroll height wrong for
   tiles that had never been rendered. Past a few hundred photos the answer is
   pagination, not this. */
.shot { margin: 0; min-width: 0; }

.shot-link {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-sunken);
  line-height: 0;
}

/* The blur-up placeholder is painted as the link's background by the build.
   Scaling a 16px JPEG to tile size is the blur — no filter needed, so there's
   no compositing cost while scrolling. */
.shot-link img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform .35s cubic-bezier(.22, 1, .36, 1), opacity .3s ease;
  /* Suppresses the iOS long-press "Save Image" sheet and the desktop drag
     ghost. Friction only — see the note in js/gallery.js. */
  -webkit-touch-callout: none;
  -webkit-user-drag: none;
  -webkit-user-select: none;
  user-select: none;
}

/* Only fade when JS is present to add .lit — without it the image must be
   visible immediately, since the page has to work with no script at all. */
.js .shot-link img { opacity: 0; }
.js .shot-link img.lit { opacity: 1; }

@media (hover: hover) {
  .shot-link:hover img { transform: scale(1.02); }
}

.shot figcaption {
  min-width: 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 11px 2px 0;
  line-height: 1.45;
}

.shot-title { font-weight: 650; font-size: 15px; min-width: 0; overflow-wrap: anywhere; }
.shot-caption { color: var(--fg-dim); font-size: 14px; flex: 1 1 100%; order: 3; min-width: 0; overflow-wrap: anywhere; }

.shot-dl {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 0 11px;
  border-radius: 999px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  color: var(--fg-dim);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  touch-action: manipulation;
}

.shot-dl svg { width: 15px; height: 15px; }
.shot-dl:active { transform: translateY(1px); }

/* ---------- support + licence ---------- */

.support, .licence {
  max-width: 760px;
  margin-inline: auto;
  padding-block: 30px;
}

.support {
  text-align: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.support h2, .licence h2 { font-size: 20px; }
.support p, .licence p { color: var(--fg-dim); margin: 10px 0 20px; }
.licence p { margin-bottom: 0; }
.support .btn.primary { background: var(--kofi); color: #fff; }

.foot {
  max-width: 760px;
  margin-inline: auto;
  padding-block: 28px calc(36px + var(--safe-b));
  color: var(--fg-dim);
  font-size: 13.5px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  justify-content: space-between;
  border-top: 1px solid var(--line);
}

.foot p { margin: 0; }

/* ---------- viewer ---------- */

.viewer {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: #000;
  display: grid;
  place-items: center;
  touch-action: none;
}

.viewer-stage {
  margin: 0;
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  padding: calc(60px + var(--safe-t)) 8px calc(72px + var(--safe-b));
}

.viewer-stage img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  -webkit-user-drag: none;
  user-select: none;
  pointer-events: none;
}

.viewer-bar {
  position: absolute;
  left: 0; right: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px max(12px, var(--safe-r)) 10px max(12px, var(--safe-l));
  color: #fff;
}

.viewer-top { top: 0; padding-top: calc(10px + var(--safe-t)); background: linear-gradient(to bottom, rgba(0, 0, 0, .65), transparent); }
.viewer-bottom { bottom: 0; padding-bottom: calc(12px + var(--safe-b)); background: linear-gradient(to top, rgba(0, 0, 0, .65), transparent); }
.viewer-bottom p { margin: 0 auto; font-size: 13.5px; text-align: center; color: rgba(255, 255, 255, .85); }
.viewer-count { font-size: 13px; font-weight: 600; opacity: .8; margin-right: auto; }

.vbtn {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: #fff;
  cursor: pointer;
  touch-action: manipulation;
}

.vbtn:active { background: rgba(255, 255, 255, .14); }

.vnav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px; height: 48px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, .1);
  color: #fff;
  cursor: pointer;
  touch-action: manipulation;
}

.vnav.prev { left: 10px; }
.vnav.next { right: 10px; }
.vnav:disabled { opacity: .25; cursor: default; }

/* Arrows are a pointer affordance; on touch the gesture is a swipe. */
@media (hover: none) and (pointer: coarse) { .vnav { display: none; } }

/* ---------- toast ---------- */

.toast {
  position: fixed;
  z-index: 90;
  left: 50%;
  bottom: calc(24px + var(--safe-b));
  transform: translateX(-50%);
  max-width: min(92vw, 420px);
  padding: 11px 16px;
  border-radius: 12px;
  background: #12151c;
  color: #fff;
  font-size: 13.5px;
  text-align: center;
  box-shadow: 0 8px 30px rgba(0, 0, 0, .4);
}

@media (prefers-color-scheme: dark) { .toast { background: #2a303c; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* Ko-fi keeps its brand colour as a secondary action: the photos are what the
   page is for, and the ask reads better after the work than in front of it. */
.kofi-cta { color: var(--kofi); border-color: color-mix(in srgb, var(--kofi) 45%, transparent); }

/* ---------- supporter prompt ---------- */

.gate-scrim {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(0, 0, 0, .5);
}

.gate {
  position: fixed;
  z-index: 91;
  left: 0; right: 0; bottom: 0;
  padding: 26px max(20px, var(--safe-r)) calc(24px + var(--safe-b)) max(20px, var(--safe-l));
  background: var(--bg-elev);
  border-radius: 20px 20px 0 0;
  box-shadow: 0 -8px 40px rgba(0, 0, 0, .4);
  animation: gate-in .24s cubic-bezier(.22, 1, .36, 1);
}

@keyframes gate-in { from { transform: translateY(100%); } }

@media (min-width: 620px) {
  .gate {
    left: 50%;
    right: auto;
    bottom: auto;
    top: 50%;
    width: 460px;
    transform: translate(-50%, -50%);
    border-radius: 18px;
    animation: none;
  }
}

.gate h2 { font-size: 20px; padding-right: 32px; }
.gate-body { color: var(--fg-dim); font-size: 14.5px; margin: 10px 0 0; }
.gate-file { font-size: 13.5px; font-weight: 600; margin: 14px 0 0; overflow-wrap: anywhere; }

/* Both actions are the same size on purpose. The bypass is a real choice, not a
   grudging one — see the note in js/gallery.js. */
.gate-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.gate-actions .btn { flex: 1 1 190px; }
.gate-actions .gate-support { background: var(--kofi); color: #fff; border-color: transparent; }

.gate-note { color: var(--fg-dim); font-size: 12.5px; margin: 14px 0 0; }

.gate-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px; height: 36px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--fg-dim);
  cursor: pointer;
  touch-action: manipulation;
}

.gate-close:active { background: var(--bg-sunken); }

/* Owner's way back to the uploader. Muted rather than hidden — see the note in
   tools/build-gallery.mjs about why the URL isn't the thing protecting it. */
.foot-studio { color: var(--fg-dim); }