/* Raxi Game — core stylesheet. Dark-red gaming theme. No external requests. */

:root {
  --bg: #0a0908;
  --bg-alt: #121012;
  --surface: #1b1719;
  --surface-2: #241f22;
  --border: #34292c;
  --red: #ff3049;
  --red-strong: #cf1130;
  --red-dark: #7a0a1c;
  --red-glow: rgba(255, 48, 73, 0.35);
  --gold: #ffb020;
  --text: #f4eef0;
  --text-dim: #cbc2c5;
  --text-mute: #9a9095;
  --radius: 12px;
  --radius-sm: 8px;
  --max: 1180px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 900px 500px at 15% -10%, var(--red-glow), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 0%, rgba(255,48,73,0.12), transparent 55%);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
a { color: var(--red); text-decoration: none; }
a:hover { color: #ff6478; text-decoration: underline; }
p a, .disclosure a, .form-note a, .faq-answer a, .lead a {
  text-decoration: underline;
  text-decoration-color: currentColor;
  text-underline-offset: 2px;
}

h1, h2, h3, h4 {
  font-family: var(--font);
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.15;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.2rem); }
h3 { font-size: clamp(1.15rem, 2.2vw, 1.5rem); }
p { color: var(--text-dim); margin: 0 0 1em; }

.eyebrow {
  display: inline-block;
  color: var(--gold);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.75em;
}

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

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--red-strong);
  color: #fff;
  padding: 12px 18px;
  z-index: 200;
  border-radius: 0 0 8px 0;
  font-weight: 700;
}
.skip-link:focus {
  left: 0;
}

/* Focus visibility for accessibility */
a:focus-visible, button:focus-visible, input:focus-visible,
textarea:focus-visible, select:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 9, 8, 0.88);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  max-width: var(--max);
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.3rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.brand:hover { text-decoration: none; color: var(--text); }
.brand .mark { color: var(--red); }
.logo-img { height: 34px; width: auto; display: block; }
.footer-grid .logo-img { height: 28px; margin-bottom: 10px; }

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
.nav-links a {
  display: inline-block;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.94rem;
}
.nav-links a:hover, .nav-links a[aria-current="page"] {
  color: #fff;
  background: var(--surface-2);
  text-decoration: none;
}
.nav-cta {
  background: var(--red-strong);
  color: #fff !important;
  font-weight: 700;
}
.nav-cta:hover { background: var(--red); }

.nav-toggle {
  display: none;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: 1.1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary {
  background: var(--red-strong);
  color: #fff;
  box-shadow: 0 8px 24px -8px var(--red-glow);
}
.btn-primary:hover { background: var(--red); color: #fff; text-decoration: none; }
.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--red); color: #fff; text-decoration: none; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

/* Hero */
.hero {
  padding: 64px 0 48px;
  text-align: center;
}
.hero p.lead {
  max-width: 640px;
  margin: 0 auto 1.75em;
  font-size: 1.1rem;
}
.hero-art {
  display: block;
  width: 100%;
  max-width: 1000px;
  height: auto;
  margin: 44px auto 0;
  border-radius: var(--radius);
}
.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Sections & cards */
section { padding: 56px 0; }
section.tight { padding: 32px 0; }
.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.card {
  background: linear-gradient(180deg, var(--surface), var(--bg-alt));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.card h3, .card h2 { color: var(--text); font-size: clamp(1.15rem, 2.2vw, 1.5rem); }
.card .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid rgba(255,176,32,0.4);
  padding: 3px 9px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.section-head { text-align: center; max-width: 620px; margin: 0 auto 36px; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 18px; }
.stat { text-align: center; padding: 18px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.stat b { display: block; font-size: 1.8rem; color: var(--red); font-weight: 900; }
.stat span { color: var(--text-mute); font-size: 0.85rem; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); }
th { color: var(--text-mute); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* Forms */
label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.92rem; }
input, textarea, select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  margin-bottom: 16px;
}
input::placeholder, textarea::placeholder { color: var(--text-mute); }
.form-note { color: var(--text-mute); font-size: 0.85rem; margin-top: -8px; }
.field-error { color: #ff8a8a; font-size: 0.85rem; margin-top: -12px; margin-bottom: 14px; display: none; }
.form-status[role="status"] { font-weight: 700; }

/* FAQ */
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; background: var(--surface); overflow: hidden; }
.faq-item summary {
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 700;
  color: var(--text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--red); font-size: 1.4rem; font-weight: 400; }
.faq-item[open] summary::after { content: "\2212"; }
.faq-item .faq-answer { padding: 0 20px 18px; color: var(--text-dim); }

/* Breadcrumb */
.breadcrumb { font-size: 0.85rem; color: var(--text-mute); margin-bottom: 18px; }
.breadcrumb a { color: var(--text-mute); }
.breadcrumb a:hover { color: var(--red); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 44px 0 26px;
  margin-top: 40px;
  color: var(--text-mute);
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 28px;
}
.footer-grid h2 { color: var(--text); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.06em; margin: 0 0 0.5em; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a { color: var(--text-mute); }
.footer-grid a:hover { color: var(--red); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.disclosure {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 0.85rem;
  color: var(--text-mute);
  margin-top: 24px;
}

/* Badges */
.badge { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 800; letter-spacing: 0.05em; text-transform: uppercase; }
.badge-free { background: rgba(46, 204, 113, 0.15); color: #4ee08a; }
.badge-new { background: rgba(255,176,32,0.15); color: var(--gold); }

/* Game hub tabs */
.tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
  margin-bottom: 24px;
}
.tabs [role="tab"] {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
  font-size: 0.92rem;
}
.tabs [role="tab"][aria-selected="true"] {
  background: var(--red-strong);
  border-color: var(--red-strong);
  color: #fff;
}
.game-panel { padding-top: 6px; }
.game-meta {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  color: var(--text-mute);
  font-size: 0.9rem;
}
.game-meta b { color: var(--text); }
.game-status[role="status"] { min-height: 1.4em; color: var(--text-dim); margin-bottom: 12px; }
.game-stage {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
canvas#snake-canvas {
  background: #121012;
  border-radius: var(--radius-sm);
  width: 100%;
  max-width: 400px;
  height: auto;
  image-rendering: pixelated;
}

.t2048-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  width: 100%;
  max-width: 360px;
}
.t2048-cell {
  aspect-ratio: 1;
  background: var(--bg-alt);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-mute);
}
.t2048-cell.filled { color: #fff; background: var(--red-dark); }
.t2048-cell.v8, .t2048-cell.v16 { background: #9c1226; }
.t2048-cell.v32, .t2048-cell.v64 { background: #cf1130; }
.t2048-cell.v128, .t2048-cell.v256, .t2048-cell.v512 { background: #ff3049; }
.t2048-cell.v1024, .t2048-cell.v2048 { background: var(--gold); color: #1b1719; }

.memory-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  width: 100%;
  max-width: 360px;
}
.memory-card {
  aspect-ratio: 1;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1.5rem;
  color: var(--text-mute);
  cursor: pointer;
}
.memory-card.flipped { background: var(--surface-2); color: var(--text); }
.memory-card.matched { background: var(--red-dark); color: #fff; opacity: 0.85; }

.ttt-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  width: 100%;
  max-width: 280px;
}
.ttt-cell {
  aspect-ratio: 1;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 2rem;
  font-weight: 900;
  color: var(--red);
  cursor: pointer;
}

.whack-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  width: 100%;
  max-width: 320px;
}
.whack-hole {
  aspect-ratio: 1;
  background: var(--bg-alt);
  border: 2px solid var(--border);
  border-radius: 50%;
  cursor: pointer;
}
.whack-hole.up { background: var(--red-strong); border-color: var(--red); box-shadow: 0 0 20px var(--red-glow); }

.reaction-box {
  width: 100%;
  max-width: 360px;
  height: 200px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  color: #fff;
  cursor: pointer;
  border: none;
}
.reaction-box.idle { background: var(--surface-2); color: var(--text); }
.reaction-box.waiting { background: var(--red-dark); }
.reaction-box.go { background: #1fae5c; }

@media (max-width: 760px) {
  .nav-links { position: fixed; inset: 62px 0 0 0; background: var(--bg); flex-direction: column; padding: 20px; display: none; overflow-y: auto; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: inline-block; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}