/* ============================================================
   Arcade design system — shared by the hub and every game page.
   Dark neon-arcade theme. No external fonts, no dependencies.
   ============================================================ */

:root {
  --bg: #0a0d18;
  --bg-2: #0e1322;
  --panel: #131a30;
  --panel-2: #182140;
  --line: #26304f;
  --line-bright: #35426e;
  --text: #e9edff;
  --muted: #98a1c4;
  --faint: #6b7396;

  --green: #3ee97f;
  --yellow: #fde047;
  --violet: #a78bfa;
  --pink: #f472b6;
  --orange: #fb923c;
  --cyan: #38dff0;
  --red: #f87171;

  --accent: var(--cyan);

  --radius: 14px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

/* Per-page accent, set via <body data-accent="..."> */
body[data-accent="green"]  { --accent: var(--green); }
body[data-accent="yellow"] { --accent: var(--yellow); }
body[data-accent="violet"] { --accent: var(--violet); }
body[data-accent="pink"]   { --accent: var(--pink); }
body[data-accent="orange"] { --accent: var(--orange); }
body[data-accent="cyan"]   { --accent: var(--cyan); }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(1100px 500px at 15% -10%, rgba(167, 139, 250, 0.10), transparent 60%),
    radial-gradient(900px 480px at 90% -5%, rgba(56, 223, 240, 0.08), transparent 55%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.55;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ---------- Shared game-page shell (injected by Arcade.mountShell) ---------- */

.shell-bar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 20px;
  background: rgba(10, 13, 24, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.shell-bar .back {
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
}
.shell-bar .back:hover { color: var(--text); text-decoration: none; }

.shell-bar .game-title {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin: 0;
  flex: 1;
  text-align: center;
}
.shell-bar .game-title::after {
  content: "";
  display: block;
  width: 34px;
  height: 3px;
  margin: 2px auto 0;
  border-radius: 2px;
  background: var(--accent);
}

.shell-bar .shell-right {
  display: flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}
.shell-bar .best {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
}
.shell-bar .best strong { color: var(--accent); font-weight: 700; }

.icon-btn {
  appearance: none;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  width: 36px;
  height: 36px;
  font-size: 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, transform 0.15s;
}
.icon-btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.icon-btn[aria-pressed="true"] { opacity: 0.45; }

/* ---------- Game stage layout ---------- */

.game-stage {
  max-width: 1060px;
  margin: 0 auto;
  padding: 26px 20px 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.game-wrap {
  position: relative;
  max-width: 100%;
}

.game-wrap canvas {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line-bright);
  border-radius: var(--radius);
  background: var(--bg-2);
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.4),
    0 18px 50px -18px rgba(0, 0, 0, 0.8),
    0 0 42px -14px color-mix(in srgb, var(--accent) 45%, transparent);
}

/* Overlay panel games can show over the canvas (start / pause / game over) */
.game-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  text-align: center;
  padding: 24px;
  background: rgba(8, 10, 20, 0.78);
  backdrop-filter: blur(4px);
  border-radius: var(--radius);
  z-index: 5;
}
.game-overlay h2 {
  margin: 0;
  font-size: clamp(26px, 5vw, 40px);
  letter-spacing: 0.03em;
  color: var(--accent);
  text-shadow: 0 0 24px color-mix(in srgb, var(--accent) 60%, transparent);
}
.game-overlay p { margin: 0; color: var(--muted); font-size: 15px; }
.game-overlay .big-score {
  font-family: var(--mono);
  font-size: 22px;
  color: var(--text);
}
.game-overlay .new-best {
  color: var(--yellow);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 13px;
}
.game-overlay.hidden { display: none; }

/* ---------- HUD / controls ---------- */

.hud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--muted);
}
.hud b, .hud strong { color: var(--text); font-weight: 700; }

.controls-hint {
  color: var(--faint);
  font-size: 13px;
  text-align: center;
  margin: 0;
}
.controls-hint kbd {
  font-family: var(--mono);
  font-size: 11.5px;
  background: var(--panel);
  border: 1px solid var(--line-bright);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 2px 7px;
  color: var(--text);
  margin: 0 2px;
}

/* ---------- Buttons, selects, panels ---------- */

.btn {
  appearance: none;
  font: inherit;
  font-weight: 700;
  font-size: 14px;
  color: #0a0d18;
  background: var(--accent);
  border: none;
  border-radius: 10px;
  padding: 10px 22px;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: transform 0.15s, box-shadow 0.15s, filter 0.15s;
  box-shadow: 0 6px 22px -8px color-mix(in srgb, var(--accent) 70%, transparent);
}
.btn:hover { transform: translateY(-2px); filter: brightness(1.08); }
.btn:active { transform: translateY(0); }

.btn.ghost {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line-bright);
  box-shadow: none;
}
.btn.ghost:hover { border-color: var(--accent); }

.select, select.select {
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line-bright);
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
}
.select:hover { border-color: var(--accent); }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 20px;
}

/* ---------- Score table (game pages) ---------- */

.scores { width: 100%; max-width: 460px; }
.scores h3 {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
  text-align: center;
}
.scores ol {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.scores li {
  display: flex;
  justify-content: space-between;
  padding: 9px 16px;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--muted);
  background: var(--panel);
}
.scores li:nth-child(odd) { background: var(--bg-2); }
.scores li .v { color: var(--text); font-weight: 600; }
.scores li:first-child .v { color: var(--accent); }
.scores .empty { justify-content: center; color: var(--faint); }

/* ============================================================
   Hub (index.html)
   ============================================================ */

.hub-header {
  max-width: 1160px;
  margin: 0 auto;
  padding: 54px 24px 8px;
  text-align: center;
}

.hub-header .logo {
  font-size: clamp(38px, 7vw, 62px);
  font-weight: 900;
  letter-spacing: 0.04em;
  margin: 0;
  background: linear-gradient(100deg, var(--cyan) 0%, var(--violet) 45%, var(--pink) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 26px rgba(167, 139, 250, 0.35));
}
.hub-header .tagline {
  color: var(--muted);
  font-size: 16px;
  margin: 10px 0 0;
}

.hub-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 28px auto 6px;
  padding: 0 24px;
}
.chip {
  appearance: none;
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 18px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.chip:hover { color: var(--text); border-color: var(--line-bright); }
.chip.active {
  color: #0a0d18;
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

.hub-grid {
  max-width: 1160px;
  margin: 22px auto 0;
  padding: 0 24px 70px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
}

.game-card {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.game-card:hover {
  transform: translateY(-4px);
  text-decoration: none;
  border-color: var(--card-accent, var(--cyan));
  box-shadow: 0 20px 44px -18px rgba(0, 0, 0, 0.9),
              0 0 34px -12px color-mix(in srgb, var(--card-accent, var(--cyan)) 55%, transparent);
}

.game-card .thumb {
  aspect-ratio: 16 / 10;
  background:
    linear-gradient(150deg,
      color-mix(in srgb, var(--card-accent, var(--cyan)) 26%, var(--bg-2)),
      var(--bg-2) 70%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.game-card .thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.game-card .thumb .glyph { font-size: 54px; }

.game-card .card-body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.game-card h2 { margin: 0; font-size: 18px; font-weight: 800; letter-spacing: 0.01em; }
.game-card .blurb { margin: 0; color: var(--muted); font-size: 13.5px; flex: 1; }

.game-card .meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 2px;
}
.game-card .cat {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--card-accent, var(--cyan));
  border: 1px solid color-mix(in srgb, var(--card-accent, var(--cyan)) 45%, transparent);
  border-radius: 999px;
  padding: 3px 10px;
}
.game-card .best {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--faint);
}
.game-card .best strong { color: var(--text); font-weight: 600; }

.game-card .badge-last {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(10, 13, 24, 0.8);
  color: var(--yellow);
  border: 1px solid color-mix(in srgb, var(--yellow) 50%, transparent);
  border-radius: 999px;
  padding: 3px 10px;
  backdrop-filter: blur(4px);
}

.game-card .badge-lock {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(10, 13, 24, 0.85);
  color: var(--violet);
  border: 1px solid color-mix(in srgb, var(--violet) 50%, transparent);
  border-radius: 999px;
  padding: 3px 10px;
  backdrop-filter: blur(4px);
}
.game-card.locked .thumb img { filter: saturate(0.35) brightness(0.7); }

.hub-footer {
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 13px;
  text-align: center;
  padding: 26px 20px 40px;
}
.hub-footer a { color: var(--muted); }

/* Ad containers (rendered by shared/ads.js only when ads are enabled) */
.ad-box {
  width: 100%;
  max-width: 1112px;
  margin: 22px auto 0;
  padding: 10px 12px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-height: 110px;
}
.ad-box .ad-label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 6px;
}
.game-stage .ad-box, .shop-main .ad-box { max-width: 860px; }

@media (max-width: 560px) {
  .shell-bar { padding: 8px 12px; gap: 10px; }
  .shell-bar .best { display: none; }
  .game-stage { padding: 16px 10px 40px; }
}
