:root {
  --bg: #0b0d10;
  --panel: #12151a;
  --text: #e8edf2;
  --muted: #a9b3bd;
  --border: #1e232b;
  --ally: #1e7e34;
  --axis: #8a2424;
  --chip: #1b2028;
  --accent: #2a6df2;
  /* Class colors (distinct warm palette) */
  --recon-color: #22c55e; /* yellow */
  --light-color: #ffcc00; /* orange */
  --medium-color: #f97316; /* deep orange */
  --heavy-color: #ef4444; /* red */
  /* Faction colors (distinct cool/neutral palette) */
  --usa-color: #2a6df2; /* blue */
  --uk-color: #7c3aed; /* purple */
  --ussr-color: #22c55e; /* green */
  --germany-color: #ffffff; /* white */
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  font-size: 14px;
  line-height: 1.35;
  text-align: center;
}

.wrapper {
  max-width: 580px;
  margin: 0 auto;
  padding: 12px;
}

header {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 8px;
}
h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

section.category {
  margin-top: 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 5px;
}
.category-title {
  display: block;
  margin: 0 0 10px 0;
  padding: 8px 0 0px 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.4px;
  border: 0;
  border-radius: 0;
  background: transparent;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
}
/* Color-tinted panels and headings per class */
section.category[data-category="Recon"] {
  background: color-mix(in oklab, var(--recon-color) 12%, var(--panel));
  border-color: color-mix(in oklab, var(--recon-color) 35%, var(--border));
}
section.category[data-category="Recon"] > .category-title {
  background: transparent;
  border-color: transparent;
}
section.category[data-category="Light"] {
  background: color-mix(in oklab, var(--light-color) 12%, var(--panel));
  border-color: color-mix(in oklab, var(--light-color) 35%, var(--border));
}
section.category[data-category="Light"] > .category-title {
  background: transparent;
  border-color: transparent;
}
section.category[data-category="Medium"] {
  background: color-mix(in oklab, var(--medium-color) 12%, var(--panel));
  border-color: color-mix(in oklab, var(--medium-color) 35%, var(--border));
}
section.category[data-category="Medium"] > .category-title {
  background: transparent;
  border-color: transparent;
}
section.category[data-category="Heavy"] {
  background: color-mix(in oklab, var(--heavy-color) 12%, var(--panel));
  border-color: color-mix(in oklab, var(--heavy-color) 35%, var(--border));
}
section.category[data-category="Heavy"] > .category-title {
  background: transparent;
  border-color: transparent;
}

.groups {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
@media (min-width: 720px) {
  .groups {
    grid-template-columns: 1fr 1fr;
  }
}

.group {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
}
.group-title {
  display: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 8px;
}

.card {
  background: #0f1318;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  cursor: default;
  transition: transform 120ms ease, border-color 120ms ease;
}

/* Class-based backgrounds */
.card[data-category="Recon"] {
  background: color-mix(in oklab, var(--recon-color) 70%, #0f1318);
  border-color: color-mix(in oklab, var(--recon-color) 32%, var(--border));
}
.card[data-category="Light"] {
  background: color-mix(in oklab, var(--light-color) 70%, #0f1318);
  border-color: color-mix(in oklab, var(--light-color) 32%, var(--border));
}
.card[data-category="Medium"] {
  background: color-mix(in oklab, var(--medium-color) 70%, #0f1318);
  border-color: color-mix(in oklab, var(--medium-color) 32%, var(--border));
}
.card[data-category="Heavy"] {
  background: color-mix(in oklab, var(--heavy-color) 70%, #0f1318);
  border-color: color-mix(in oklab, var(--heavy-color) 32%, var(--border));
}

.card:focus-within,
.card:hover {
  transform: translateY(-1px);
  border-color: #2a3340;
}

/* Visible focus outlines for keyboard users */
.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.open-btn {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #0d1014;
  color: var(--text);
  font-weight: 700;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
}
.open-btn:hover,
.open-btn:focus-visible {
  border-color: #2a3340;
  outline: none;
}

.thumb {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  display: block;
  object-fit: cover;
  object-position: center;
  background: #0b0e12;
}

.meta {
  padding: 6px 7px 7px 7px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.name {
  margin: 4px 4px 4px 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.meta-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.meta-actions .cost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #41464c;
  color: var(--text);
  font-weight: 700;
  font-size: 15px;
}
.meta-actions .cost .sep {
  opacity: 0.6;
}
.meta-actions .open-btn,
.meta-actions .cost {
  height: 28px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: center;
}

/* Overlay chips on card image */
.card .chips {
  position: absolute;
  top: 8px;
  right: 8px;
  justify-content: flex-end;
  pointer-events: none;
  z-index: 2;
}
.chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 2px 6px;
  font-size: 14px;
  line-height: 1;
  background: var(--chip);
  color: var(--muted);
  border: 1px solid var(--border);
}

.chip.faction.allies {
  background: color-mix(in oklab, var(--ally) 22%, var(--chip));
  color: #dff4e5;
  border-color: color-mix(in oklab, var(--ally) 35%, var(--border));
}
.chip.faction.axis {
  background: color-mix(in oklab, var(--axis) 22%, var(--chip));
  color: #f5dede;
  border-color: color-mix(in oklab, var(--axis) 35%, var(--border));
}
.chip.faction.usa {
  background: color-mix(in oklab, var(--usa-color) 30%, var(--chip));
  color: #e6f0ff;
  border-color: color-mix(in oklab, var(--usa-color) 45%, var(--border));
}
.chip.faction.uk {
  background: color-mix(in oklab, var(--uk-color) 30%, var(--chip));
  color: #efe6ff;
  border-color: color-mix(in oklab, var(--uk-color) 45%, var(--border));
}
.chip.faction.ussr {
  background: color-mix(in oklab, var(--ussr-color) 30%, var(--chip));
  color: #e6ffed;
  border-color: color-mix(in oklab, var(--ussr-color) 45%, var(--border));
}
.chip.faction.germany {
  background: color-mix(in oklab, var(--germany-color) 30%, var(--chip));
  color: #0b0d10;
  border-color: color-mix(in oklab, var(--germany-color) 45%, var(--border));
}

/* Class chips */
.chip.class.recon {
  background: color-mix(in oklab, var(--recon-color) 70%, var(--chip));
  color: #dbe7ff;
  border-color: color-mix(in oklab, var(--recon-color) 40%, var(--border));
}
.chip.class.light {
  background: color-mix(in oklab, var(--light-color) 70%, var(--chip));
  color: #e4f7ea;
  border-color: color-mix(in oklab, var(--light-color) 40%, var(--border));
}
.chip.class.medium {
  background: color-mix(in oklab, var(--medium-color) 70%, var(--chip));
  color: #fff2cc;
  border-color: color-mix(in oklab, var(--medium-color) 40%, var(--border));
}
.chip.class.heavy {
  background: color-mix(in oklab, var(--heavy-color) 70%, var(--chip));
  color: #ffe1e1;
  border-color: color-mix(in oklab, var(--heavy-color) 40%, var(--border));
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
}
.modal[aria-hidden="false"] {
  display: flex;
}
.modal-inner {
  position: relative;
  width: min(100%, 980px);
  max-height: 90vh;
  background: #0f1318;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.modal img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
  background: #0b0e12;
}
.modal-video {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: #0b0e12;
  cursor: grab;
  touch-action: none;
}
.modal-video.dragging {
  cursor: grabbing;
}
.caption {
  padding: 10px 12px;
  font-size: 12px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.caption .title {
  color: var(--text);
  font-weight: 700;
}
.close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(9, 11, 14, 0.85);
  color: var(--text);
  font-size: 20px;
  line-height: 1;
  display: grid;
  place-items: center;
  cursor: pointer;
}
.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;
}

/* Faction selector */
[hidden] {
  display: none !important;
}
.selector {
  margin-top: 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
}
.filters {
  margin-top: 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
}
.filters-icon {
  display: inline-flex;
  width: 20px;
  height: 20px;
  color: var(--muted);
  opacity: 0.85;
}
.filters-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  display: block;
}
.filters-title {
  color: var(--muted);
  font-size: 12px;
  text-align: left;
  margin: 0 4px 0 2px;
  white-space: nowrap;
  font-weight: 700;
  padding: 0 4px;
}
.filter-grid {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
}
.filter-grid::-webkit-scrollbar {
  display: none;
}
.filter-grid {
  scrollbar-width: none;
}
.filter-item {
  position: relative;
  flex: 0 0 auto;
  scroll-snap-align: start;
}
.filter-label {
  display: inline-block;
  width: auto;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #0f1318;
  cursor: pointer;
  user-select: none;
  font-weight: 700;
  font-size: 12px;
}
/* Checked visual: when selected (hidden), remove border emphasis */
input[type="checkbox"].sr-only:checked + .filter-label {
  border-color: transparent;
  background: #0d1014;
  opacity: 0.6;
}
/* Category accents */
.filter-item.recon .filter-label {
  border-color: color-mix(in oklab, var(--recon-color) 35%, var(--border));
}
.filter-item.light .filter-label {
  border-color: color-mix(in oklab, var(--light-color) 35%, var(--border));
}
.filter-item.medium .filter-label {
  border-color: color-mix(in oklab, var(--medium-color) 35%, var(--border));
}
.filter-item.heavy .filter-label {
  border-color: color-mix(in oklab, var(--heavy-color) 35%, var(--border));
}
.selector-title {
  margin: 0 0 8px 0;
  font-size: 14px;
  color: var(--muted);
}
.faction-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.faction-card {
  background: #0f1318;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  text-align: center;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease,
    background 120ms ease;
}
.faction-flag {
  font-size: 18px;
  line-height: 1;
  margin-bottom: 6px;
}
.faction-card:hover {
  transform: translateY(-1px);
  border-color: #2a3340;
}
.faction-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.faction-card[aria-pressed="true"] {
  border-color: #2a3340;
  background: #12151a;
}
.faction-card[aria-pressed="true"][data-faction="USA"] {
  border-color: color-mix(in oklab, var(--usa-color) 35%, var(--border));
  background: color-mix(in oklab, var(--usa-color) 18%, #0f1318);
}
.faction-card[aria-pressed="true"][data-faction="UK"] {
  border-color: color-mix(in oklab, var(--uk-color) 35%, var(--border));
  background: color-mix(in oklab, var(--uk-color) 18%, #0f1318);
}
.faction-card[aria-pressed="true"][data-faction="USSR"] {
  border-color: color-mix(in oklab, var(--ussr-color) 35%, var(--border));
  background: color-mix(in oklab, var(--ussr-color) 18%, #0f1318);
}
.faction-card[aria-pressed="true"][data-faction="Germany"] {
  border-color: color-mix(in oklab, var(--germany-color) 35%, var(--border));
  background: color-mix(in oklab, var(--germany-color) 18%, #0f1318);
}
.faction-name {
  font-weight: 700;
  font-size: 13px;
  margin: 0px;
}
.hint {
  color: var(--muted);
  font-size: 11px;
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .card,
  .faction-card {
    transition: none;
  }
}

/* Footer */
.site-footer {
  margin: 16px 0 24px;
  color: var(--muted);
  font-size: 12px;
}
.site-footer a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px dashed var(--border);
}
.site-footer a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}