/*
Theme Name: Thumbnail Gallery
Description: A one-page game thumbnail gallery. Images live in wp-content/uploads/thumbnails/ and the list comes from thumbnails.csv in that folder (or every image in the folder if there is no CSV). Manage it under Appearance → Game Gallery.
Version: 1.6.1
Requires at least: 5.8
Requires PHP: 7.4
License: GPLv2 or later
Text Domain: thumbnail-gallery
*/

:root {
  --cols: 5;
  --gap-x: 28px;
  --gap-y: 22px;
  --radius: 14px;
  --accent: #0070d1;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: "SST", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: #fff;
  color: #1f1f1f;
}

/* ---------- header ---------- */
#top {
  max-width: 2400px; margin: 0 auto; padding: 20px 24px 0;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px;
}
#top h1 { margin: 0; font-size: 1.6rem; font-weight: 600; }
#top p  { margin: 2px 0 0; color: #555; }
#top .tools { display: flex; align-items: center; gap: 12px; }
#count { color: #666; font-size: .95rem; white-space: nowrap; }
#q {
  font: inherit; padding: 8px 16px; min-width: 240px;
  border: 1px solid #c9ced8; border-radius: 999px; outline: none;
}
#q:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,112,209,.18); }

/* ---------- grid ---------- */
main { padding: 24px; max-width: 2400px; margin: 0 auto; }
#grid {
  display: grid;
  grid-template-columns: repeat(var(--cols), minmax(0, 1fr));
  column-gap: var(--gap-x);
  row-gap: var(--gap-y);
  align-items: start;
}
.card { display: block; color: inherit; cursor: default; outline: none; }
.cover {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  overflow: hidden;
  background: #e9ecf2;
  display: flex; align-items: center; justify-content: center;
  transition: transform .15s ease, box-shadow .15s ease;
}
.cover img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  /* no "Save image as…", no drag-to-desktop, no long-press save on phones */
  pointer-events: none; user-select: none; -webkit-user-select: none;
  -webkit-user-drag: none; -webkit-touch-callout: none;
}
.cover .ph { padding: 12px; text-align: center; color: #667; font-size: .95rem; }
.card:hover .cover, .card:focus-visible .cover {
  transform: scale(1.025);
  box-shadow: 0 0 0 3px #fff, 0 0 0 6px var(--accent);
}
.badge {
  position: absolute; top: 8px; left: 8px;
  background: var(--accent); color: #fff;
  font-size: .72rem; font-weight: 700; letter-spacing: .05em;
  padding: 3px 8px; border-radius: 999px;
}
.name {
  margin: 6px 1px 0;
  font-size: 1.05rem; line-height: 1.3;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* ---------- pager / empty ---------- */
#pager { display: flex; justify-content: center; align-items: center; gap: 18px; padding: 40px 0 20px; }
.btn {
  background: #fff; color: #1f1f1f; border: 1px solid #c9ced8; border-radius: 999px;
  padding: 8px 18px; font: inherit; cursor: pointer;
}
.btn:hover:not(:disabled) { background: #eef2f9; }
.btn:disabled { opacity: .35; cursor: default; }
#empty { text-align: center; padding: 80px 20px; line-height: 1.8; color: #444; }

[hidden] { display: none !important; }

/* ---------- print: 5 x 6 tiles per A4 sheet ---------- */
@page { size: A4 portrait; margin: 8mm; }
@media print {
  html, body { background: #fff; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  #top, #pager, #viewer, #empty, #wpadminbar { display: none !important; }
  html { margin-top: 0 !important; }
  main { padding: 0; max-width: none; margin: 0; }
  #grid { display: block; }
  .sheet {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    column-gap: 3mm;
    row-gap: 3.5mm;
    align-content: start;
    break-after: page;
  }
  .sheet:last-child { break-after: auto; }
  .card { break-inside: avoid; }
  .cover { border-radius: 2mm; box-shadow: none; transform: none !important; }
  .card:hover .cover, .card:focus-visible .cover { transform: none; box-shadow: none; }
  .badge { top: 1mm; left: 1mm; font-size: 5pt; padding: .4mm 1.4mm; }
  .name { margin: 1mm 0 0; font-size: 7.5pt; line-height: 1.2; height: 2.4em; }
}

@media screen and (max-width: 1200px) { :root { --cols: 4; } }
@media screen and (max-width: 900px)  { :root { --cols: 3; --gap-x: 18px; } }
@media screen and (max-width: 600px)  {
  :root { --cols: 2; --gap-x: 14px; --gap-y: 18px; }
  main { padding: 14px; }
  #top { padding: 14px 14px 0; }
  #top .tools { width: 100%; }
  #q { min-width: 0; flex: 1; }
}