:root {
  --bg: #07060f;
  --bg-2: #110b1f;
  --panel: rgba(18, 10, 36, 0.78);
  --ink: #f6f3ff;
  --muted: #9a91b8;
  --line: rgba(139, 92, 246, 0.38);
  --jk-purple: #8b5cf6;
  --jk-cyan: #22f0ff;
  --jk-pink: #ff3cac;
  --jk-gold: #ffe566;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --pixel: 4px;
  --font-pixel: "Press Start 2P", "Noto Sans TC", "PingFang TC", sans-serif;
  --font-term: "VT323", "Noto Sans TC", "PingFang TC", monospace;
  --font-ui: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
}

html {
  background: var(--bg);
}

body.jkdos {
  color: var(--ink);
  font-family: var(--font-ui);
  background:
    radial-gradient(1200px 600px at 12% -10%, rgba(139, 92, 246, 0.28), transparent 55%),
    radial-gradient(900px 500px at 110% 8%, rgba(255, 60, 172, 0.18), transparent 50%),
    radial-gradient(800px 500px at 50% 120%, rgba(34, 240, 255, 0.12), transparent 45%),
    var(--bg);
  overflow-x: hidden;
}

body.jkdos.play-page {
  background: #05040b;
}

.play-page .ticker {
  display: none;
}

.play-page .fx-scan {
  opacity: 0.12;
}

a {
  color: var(--jk-cyan);
  text-decoration: none;
}

a:hover {
  color: var(--jk-gold);
}

img {
  max-width: 100%;
  display: block;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--jk-gold);
  color: #111;
  padding: 8px 12px;
  z-index: 100;
}

.skip-link:focus {
  left: 8px;
}

.fx-stars,
.fx-scan,
.fx-vignette {
  pointer-events: none;
  position: fixed;
  inset: 0;
}

.fx-stars {
  z-index: 0;
  background-image:
    radial-gradient(1px 1px at 12% 22%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 28% 68%, #22f0ff 50%, transparent 51%),
    radial-gradient(1px 1px at 48% 12%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 63% 44%, #ff3cac 50%, transparent 51%),
    radial-gradient(1px 1px at 81% 18%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 91% 72%, #8b5cf6 50%, transparent 51%),
    radial-gradient(1px 1px at 8% 88%, #fff 50%, transparent 51%);
  animation: twinkle 5.5s steps(2) infinite;
  opacity: 0.7;
}

.fx-scan {
  z-index: 40;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 2px,
    rgba(0, 0, 0, 0.16) 3px
  );
  mix-blend-mode: multiply;
  opacity: 0.35;
}

.fx-vignette {
  z-index: 41;
  box-shadow: inset 0 0 180px rgba(0, 0, 0, 0.55);
}

.site {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 18px;
  background: rgba(7, 6, 15, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 2px solid var(--jk-purple);
  box-shadow: 0 0 24px rgba(139, 92, 246, 0.35);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  flex-shrink: 0;
}

.brand:hover {
  color: var(--ink);
}

.brand-mark {
  width: 42px;
  height: 42px;
  image-rendering: pixelated;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-pixel);
  font-size: 13px;
  letter-spacing: 1px;
  line-height: 1.35;
  text-shadow: 3px 0 var(--jk-pink), -3px 0 var(--jk-cyan);
  animation: chroma 3.2s steps(2) infinite;
}

.brand-sub {
  display: block;
  font-family: var(--font-term);
  font-size: 16px;
  letter-spacing: 0.28em;
  color: var(--jk-cyan);
  text-shadow: none;
  margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
}

.nav-links a {
  font-family: var(--font-term);
  font-size: 20px;
  color: var(--ink);
  padding: 6px 10px;
  border: 2px solid transparent;
}

.nav-links a:hover,
.nav-links a.is-active {
  border-color: var(--jk-cyan);
  color: var(--jk-gold);
  box-shadow: 4px 4px 0 var(--jk-pink);
}

.search-form {
  margin-left: auto;
  display: flex;
  min-width: min(420px, 42vw);
}

.search-form input {
  flex: 1;
  min-width: 0;
  background: #160d2a;
  border: 2px solid var(--jk-purple);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 14px;
  padding: 8px 12px;
  outline: none;
}

.search-form input:focus {
  border-color: var(--jk-cyan);
  box-shadow: 0 0 0 3px rgba(34, 240, 255, 0.18);
}

.search-form button,
.btn {
  font-family: var(--font-pixel);
  font-size: 10px;
  letter-spacing: 0.04em;
  border: 0;
  cursor: pointer;
  padding: 10px 14px;
  color: #120814;
  background: var(--jk-cyan);
  box-shadow: 4px 4px 0 var(--jk-pink);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.search-form button:hover,
.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--jk-pink);
}

.btn-ghost {
  background: transparent;
  color: var(--jk-cyan);
  box-shadow: 4px 4px 0 var(--jk-purple);
  border: 2px solid var(--jk-cyan);
}

.btn-ghost:hover {
  color: var(--jk-gold);
}

.nav-toggle {
  display: none;
  margin-left: auto;
  background: transparent;
  color: var(--jk-cyan);
  border: 2px solid var(--jk-cyan);
  width: 42px;
  height: 42px;
  font-size: 20px;
  cursor: pointer;
}

.ticker {
  overflow: hidden;
  border-bottom: 2px solid rgba(34, 240, 255, 0.25);
  background: rgba(255, 60, 172, 0.08);
}

.ticker-track {
  display: flex;
  width: max-content;
  gap: 48px;
  animation: marquee 28s linear infinite;
  font-family: var(--font-term);
  font-size: 22px;
  color: var(--jk-gold);
  padding: 6px 0;
  white-space: nowrap;
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  padding: 36px 24px 12px;
  max-width: 1240px;
  margin: 0 auto;
  width: 100%;
  align-items: center;
}

.crt {
  position: relative;
  background: #04030a;
  border: 4px solid #2a1b4a;
  box-shadow:
    0 0 0 4px var(--jk-purple),
    0 0 40px rgba(34, 240, 255, 0.25),
    inset 0 0 80px rgba(34, 240, 255, 0.08);
  padding: 22px 22px 16px;
  min-height: 280px;
}

.crt::before {
  content: "";
  position: absolute;
  inset: 8px;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(34, 240, 255, 0.07),
    transparent 18%,
    transparent 82%,
    rgba(255, 60, 172, 0.08)
  );
}

.crt-badge {
  font-family: var(--font-pixel);
  font-size: 8px;
  color: var(--jk-cyan);
  letter-spacing: 0.18em;
  margin-bottom: 14px;
}

.boot {
  font-family: var(--font-term);
  font-size: 24px;
  line-height: 1.35;
  color: #b7ffd8;
  min-height: 168px;
}

.boot .dim {
  color: #6f8f7c;
}

.cursor {
  display: inline-block;
  width: 12px;
  height: 22px;
  background: #b7ffd8;
  margin-left: 2px;
  animation: blink 1s steps(1) infinite;
  vertical-align: text-bottom;
}

.hero-copy h1 {
  font-family: var(--font-pixel);
  font-size: clamp(18px, 2.6vw, 28px);
  line-height: 1.55;
  margin: 0 0 14px;
  text-shadow: 4px 0 rgba(255, 60, 172, 0.7), -4px 0 rgba(34, 240, 255, 0.7);
}

.hero-copy p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
  margin: 0 0 22px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.stats {
  display: flex;
  gap: 18px;
  margin-top: 22px;
}

.stat {
  border: 2px solid var(--line);
  padding: 10px 12px;
  min-width: 110px;
  background: var(--panel);
}

.stat b {
  display: block;
  font-family: var(--font-pixel);
  font-size: 14px;
  color: var(--jk-gold);
}

.stat span {
  font-family: var(--font-term);
  font-size: 16px;
  color: var(--muted);
}

.section {
  max-width: 1240px;
  margin: 0 auto;
  padding: 18px 24px 48px;
  width: 100%;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  margin: 18px 0 18px;
}

.section-head h2 {
  font-family: var(--font-pixel);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-term);
  font-size: 20px;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 16px;
}

.game-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #140c24;
  border: 2px solid #3a2468;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.45);
  color: var(--ink);
  overflow: hidden;
  transform: translateZ(0);
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
  animation: rise 0.55s ease both;
}

.game-card:nth-child(1) { animation-delay: 0.02s; }
.game-card:nth-child(2) { animation-delay: 0.05s; }
.game-card:nth-child(3) { animation-delay: 0.08s; }
.game-card:nth-child(4) { animation-delay: 0.11s; }
.game-card:nth-child(5) { animation-delay: 0.14s; }
.game-card:nth-child(6) { animation-delay: 0.17s; }
.game-card:nth-child(7) { animation-delay: 0.2s; }
.game-card:nth-child(8) { animation-delay: 0.23s; }

.game-card:hover {
  transform: translate(-3px, -3px);
  border-color: var(--jk-cyan);
  box-shadow: 8px 8px 0 var(--jk-pink);
  color: var(--ink);
}

.game-card .cover {
  aspect-ratio: 3 / 4;
  background: #090614;
  overflow: hidden;
}

.game-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  image-rendering: auto;
  transition: transform 0.35s steps(6);
}

.game-card:hover .cover img {
  transform: scale(1.08);
}

.game-card .insert {
  position: absolute;
  left: 8px;
  top: 8px;
  font-family: var(--font-pixel);
  font-size: 7px;
  background: var(--jk-gold);
  color: #1a1020;
  padding: 5px 6px;
  opacity: 0;
  transform: translateY(-6px);
  transition: 0.16s ease;
}

.game-card:hover .insert {
  opacity: 1;
  transform: none;
}

.game-card figcaption,
.game-card .title {
  padding: 10px 10px 12px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.more-card {
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 18px;
  background: linear-gradient(160deg, rgba(139, 92, 246, 0.35), rgba(34, 240, 255, 0.12));
  border: 2px dashed var(--jk-cyan);
  color: var(--ink);
}

.more-card:hover {
  color: var(--ink);
}

.more-card strong {
  font-family: var(--font-pixel);
  font-size: 12px;
  line-height: 1.6;
  margin-bottom: 8px;
}

.catalog-tools {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
}

.catalog-tools input {
  flex: 1;
  background: #160d2a;
  border: 2px solid var(--jk-purple);
  color: var(--ink);
  font-size: 16px;
  padding: 10px 12px;
}

.catalog-count {
  font-family: var(--font-term);
  font-size: 20px;
  color: var(--jk-cyan);
  white-space: nowrap;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 2px;
  border: 2px solid var(--line);
}

.catalog-item {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  background: rgba(16, 10, 32, 0.9);
  color: var(--ink);
  border-bottom: 1px dashed rgba(139, 92, 246, 0.25);
}

.catalog-item:hover {
  background: rgba(34, 240, 255, 0.1);
  color: var(--jk-gold);
}

.catalog-item .year {
  color: var(--muted);
  font-family: var(--font-term);
  font-size: 18px;
}

.catalog-item.is-hidden {
  display: none;
}

.empty-state {
  padding: 40px 12px;
  text-align: center;
  color: var(--muted);
}

.play-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 18px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 20px 18px 48px;
  width: 100%;
}

.arcade {
  background: linear-gradient(#1b1233, #0c0816);
  border: 4px solid #3c2468;
  box-shadow:
    0 0 0 4px var(--jk-pink),
    0 20px 50px rgba(0, 0, 0, 0.5);
  padding: 12px 12px 16px;
}

.arcade-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 4px 6px 10px;
}

.arcade-top h1 {
  margin: 0;
  font-size: 18px;
}

.bezel {
  background: #000;
  border: 3px solid #22183a;
  position: relative;
}

#screen_container {
  background: #000;
}

canvas.emscripten {
  border: 0 none;
  background: #000;
  width: 100%;
  display: block;
  image-rendering: auto !important;
}

.play-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.hud {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hud-card {
  background: var(--panel);
  border: 2px solid var(--line);
  padding: 14px;
}

.hud-card h2 {
  margin: 0 0 10px;
  font-family: var(--font-pixel);
  font-size: 10px;
  color: var(--jk-cyan);
}

.hud-card kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 2px 6px;
  margin: 0 4px 4px 0;
  background: #1d1433;
  border: 2px solid var(--jk-purple);
  font-family: var(--font-term);
  font-size: 16px;
}

.hud-card code {
  color: var(--jk-gold);
}

.notice {
  font-family: var(--font-term);
  font-size: 18px;
  color: var(--jk-gold);
  margin: 0 0 10px;
}

.site-footer {
  margin-top: auto;
  border-top: 2px solid var(--jk-purple);
  padding: 22px 24px 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  background: rgba(5, 4, 12, 0.9);
  font-family: var(--font-term);
  font-size: 18px;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.html-fullscreen {
  position: fixed;
  left: 0;
  top: 0;
  max-width: 100%;
  max-height: 100%;
  height: 100%;
  width: 100%;
  z-index: 2000;
  object-fit: contain;
}

.exit_fullscreen {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  opacity: 0.18;
  z-index: 3000;
  display: none;
}

.exit_fullscreen_show {
  display: block !important;
}

.exit_fullscreen_show:hover {
  opacity: 1;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.45; }
  50% { opacity: 0.9; }
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

@keyframes chroma {
  0%, 92%, 100% { text-shadow: 3px 0 var(--jk-pink), -3px 0 var(--jk-cyan); }
  93% { text-shadow: -5px 0 var(--jk-pink), 5px 0 var(--jk-cyan); }
  96% { text-shadow: 2px 0 var(--jk-cyan), -2px 0 var(--jk-gold); }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 900px) {
  .hero,
  .play-layout {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-wrap: wrap;
  }

  .search-form {
    order: 5;
    min-width: 100%;
    margin-left: 0;
    width: 100%;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
  }

  .nav-links {
    display: none;
    order: 6;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    margin-left: 0;
    padding-top: 8px;
  }

  .topbar.is-open .nav-links {
    display: flex;
  }

  .brand-name {
    font-size: 11px;
  }

  .hero-copy h1 {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .fx-stars,
  .ticker-track,
  .brand-name,
  .cursor,
  .game-card,
  .game-card .cover img {
    animation: none !important;
    transition: none !important;
  }

  .fx-scan {
    display: none;
  }
}