/* Griffhutt Arcade — shared static hub theme
   Self-contained: no external fonts, no CDN. Dark-first neon arcade look,
   with a light fallback via prefers-color-scheme. Token names are stable so
   the JS/markup keep working regardless of theme. */

:root {
  /* dark-first neon arcade */
  --bg: #060912;
  --bg-elev: #10151f;
  --bg-sunken: #0b0f18;
  --border: #1e2740;
  --border-strong: #2f3b5c;
  --text: #eaf0ff;
  --text-dim: #9aa6c4;
  --text-faint: #6b7799;
  --accent: #6ea8ff;
  --accent-2: #b07bff;
  --accent-contrast: #060912;
  --danger: #ff8a8a;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 18px 48px rgba(0, 0, 0, 0.45);
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1120px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6fb;
    --bg-elev: #ffffff;
    --bg-sunken: #eef1f8;
    --border: #d9dfea;
    --border-strong: #c3ccdc;
    --text: #1a2233;
    --text-dim: #5a6478;
    --text-faint: #8a93a6;
    --accent: #3b6fd4;
    --accent-2: #7a4fd0;
    --accent-contrast: #ffffff;
    --danger: #c23b3b;
    --shadow: 0 1px 3px rgba(20, 30, 60, 0.08), 0 8px 24px rgba(20, 30, 60, 0.06);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
  /* neon space glow */
  background-image:
    radial-gradient(1200px 600px at 82% -12%, rgba(110, 168, 255, 0.16), transparent 60%),
    radial-gradient(900px 520px at -12% 8%, rgba(176, 123, 255, 0.14), transparent 55%),
    radial-gradient(700px 400px at 50% 120%, rgba(110, 168, 255, 0.08), transparent 60%);
  background-attachment: fixed;
}

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

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Header ---------- */
.site-header {
  padding: 40px 0 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}
.site-header .wrap {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.brand {
  margin: 0;
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 28px rgba(110, 168, 255, 0.25);
}
.subtitle {
  margin: 0;
  color: var(--text-faint);
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
}
.tagline {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}
.back-link {
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* ---------- Card grid (landing) ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
  padding-bottom: 56px;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--card-accent, var(--accent));
  text-decoration: none;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5),
              0 0 0 1px var(--card-accent, var(--accent)),
              0 12px 40px -8px var(--card-accent, var(--accent));
}

/* screenshot tile at the top of each card (16:9) */
.card__media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-sunken);
}
.card__shot {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* accent-gradient block shown when there's no screenshot */
.card__fallback {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 100% at 20% 0%, color-mix(in srgb, var(--card-accent, var(--accent)) 55%, transparent), transparent 60%),
    linear-gradient(135deg, var(--card-accent, var(--accent)), color-mix(in srgb, var(--card-accent, var(--accent)) 20%, #000));
}
.card__fallback::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(120% 100% at 50% 120%, #000, transparent 70%);
}
/* gradient scrim so overlaid text stays legible */
.card__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 9, 18, 0.85) 0%, rgba(6, 9, 18, 0.15) 55%, transparent 100%);
}
.card__badges {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  gap: 6px;
  z-index: 2;
}

.card__body {
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.card__title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}
.card__blurb {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
  flex: 1;
}
.card__cta {
  margin-top: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--card-accent, var(--accent));
  letter-spacing: 0.02em;
}

/* first card gets a light featured treatment on wide screens */
@media (min-width: 720px) {
  .card--featured { grid-column: span 2; }
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: rgba(6, 9, 18, 0.6);
  color: var(--text-dim);
  backdrop-filter: blur(4px);
}
.badge--new {
  border-color: transparent;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: var(--accent-contrast);
}
.badge--env { color: var(--text); }

/* ---------- Empty / status states ---------- */
.state {
  text-align: center;
  padding: 64px 20px;
  color: var(--text-dim);
}
.state h2 { color: var(--text); margin: 0 0 8px; font-weight: 700; }
.state p { margin: 4px 0; }
.state--inline {
  padding: 32px 20px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--bg-sunken);
}

/* ---------- Game page ---------- */
.game-hero {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-bottom: 8px;
}
.game-hero__accent {
  width: 52px;
  height: 5px;
  border-radius: 999px;
  background: var(--game-accent, var(--accent));
}
.game-title {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.game-blurb {
  margin: 0;
  max-width: 62ch;
  color: var(--text-dim);
  font-size: 1.05rem;
}

/* full-bleed screenshot hero banner variant */
.game-hero--shot {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  min-height: 240px;
  justify-content: flex-end;
  padding: 24px;
}
.game-hero--shot .game-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.game-hero--shot .game-hero__wash {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(to top, rgba(6, 9, 18, 0.92) 0%, rgba(6, 9, 18, 0.35) 60%, rgba(6, 9, 18, 0.15) 100%),
    linear-gradient(120deg, color-mix(in srgb, var(--game-accent, var(--accent)) 40%, transparent), transparent 55%);
}
.game-hero--shot .game-hero__accent,
.game-hero--shot .game-title,
.game-hero--shot .game-blurb {
  position: relative;
  z-index: 2;
}
.game-hero--shot .game-blurb { color: var(--text); opacity: 0.92; }

.panel {
  margin-top: 28px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
}

/* compact env pill (segmented toggle) */
.segment {
  display: inline-flex;
  padding: 3px;
  gap: 3px;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: 999px;
}
.segment button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-dim);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}
.segment button:hover { color: var(--text); }
.segment button[aria-pressed="true"] {
  background: var(--game-accent, var(--accent));
  color: var(--accent-contrast);
}

/* select dropdown */
.select {
  appearance: none;
  font: inherit;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg-sunken);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 9px 38px 9px 14px;
  cursor: pointer;
  min-width: 260px;
  max-width: 100%;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-dim) 50%),
    linear-gradient(135deg, var(--text-dim) 50%, transparent 50%);
  background-position:
    calc(100% - 20px) center,
    calc(100% - 14px) center;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}
.select:focus-visible,
.segment button:focus-visible,
.btn:focus-visible,
.disclosure summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Disclosure (other versions & downloads) ---------- */
.disclosure {
  margin-top: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-sunken);
  overflow: hidden;
}
.disclosure > summary {
  list-style: none;
  cursor: pointer;
  padding: 12px 16px;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 8px;
  user-select: none;
}
.disclosure > summary::-webkit-details-marker { display: none; }
.disclosure > summary::before {
  content: "▸";
  color: var(--text-faint);
  transition: transform 0.14s ease;
}
.disclosure[open] > summary::before { transform: rotate(90deg); }
.disclosure > summary:hover { color: var(--text); }
.disclosure__body {
  padding: 4px 16px 18px;
  border-top: 1px solid var(--border);
}

/* buttons */
.actions {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-sunken);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.1s ease, filter 0.12s ease, background 0.12s ease, box-shadow 0.12s ease;
  text-decoration: none;
}
.btn:hover { filter: brightness(1.08); text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--play {
  background: var(--game-accent, var(--accent));
  border-color: transparent;
  color: var(--accent-contrast);
  font-weight: 700;
  padding: 13px 28px;
  font-size: 1.05rem;
  box-shadow: 0 0 0 0 var(--game-accent, var(--accent));
}
.btn--play:hover {
  box-shadow: 0 8px 30px -6px var(--game-accent, var(--accent));
}
.btn[aria-disabled="true"],
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  filter: none;
  box-shadow: none;
}

.downloads {
  margin-top: 18px;
}
.downloads__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin: 0 0 10px;
}
.downloads__row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.downloads__empty {
  color: var(--text-faint);
  font-size: 0.9rem;
}

/* metadata */
.meta {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
}
.meta div { display: flex; flex-direction: column; gap: 2px; }
.meta dt {
  color: var(--text-faint);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
}
.meta dd {
  margin: 0;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}
.meta code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85em;
  background: var(--bg-sunken);
  padding: 1px 6px;
  border-radius: 5px;
  border: 1px solid var(--border);
}

.hidden { display: none !important; }

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding: 24px 0 48px;
  color: var(--text-faint);
  font-size: 0.85rem;
}

@media (max-width: 560px) {
  .panel { padding: 18px; }
  .select { min-width: 0; width: 100%; }
  .controls { align-items: stretch; }
  .field { width: 100%; }
}

/* ---------- Motion / accessibility ---------- */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
  .card:hover { transform: none; }
  .btn:hover, .btn:active { transform: none; }
}