/* ===================================================
   LumoArcadia - Base visual
=================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #060610;
  --panel: #0d0d1a;
  --panel-2: #111126;
  --accent: #00f5ff;
  --accent-2: #ff2d78;
  --good: #39ff14;
  --warn: #ffe600;
  --text: #e8e8f8;
  --muted: #7070a0;
  --border: rgba(0, 245, 255, 0.18);
  --font-display: 'Orbitron', monospace;
  --font-body: 'Rajdhani', sans-serif;
}

html {
  font-size: 16px;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(0, 245, 255, 0.12), transparent 35%),
    radial-gradient(circle at 80% 100%, rgba(255, 45, 120, 0.10), transparent 35%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: var(--font-display);
  cursor: pointer;
}

.game-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
}

.game-header {
  width: min(980px, 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.back-link,
.neon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0, 245, 255, 0.48);
  color: var(--accent);
  background: transparent;
  border-radius: 6px;
  padding: 0.55rem 0.9rem;
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: background 0.18s, color 0.18s, box-shadow 0.18s;
}

.back-link:hover,
.neon-btn:hover {
  background: var(--accent);
  color: var(--bg);
  box-shadow: 0 0 18px rgba(0, 245, 255, 0.8);
}

.game-title {
  font-family: var(--font-display);
  font-size: clamp(1rem, 4vw, 1.55rem);
  letter-spacing: 0.14em;
  color: var(--accent);
  text-shadow: 0 0 18px rgba(0, 245, 255, 0.7);
  text-align: center;
}

.hud {
  width: min(980px, 100%);
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.hud-item {
  min-width: 96px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(13, 13, 26, 0.78);
  border-radius: 8px;
  padding: 0.45rem 0.75rem;
  text-align: center;
}

.hud-label {
  display: block;
  color: var(--muted);
  font-family: var(--font-display);
  font-size: 0.56rem;
  letter-spacing: 0.16em;
}

.hud-value {
  display: block;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 1rem;
  text-shadow: 0 0 10px rgba(0, 245, 255, 0.8);
}/* ===================================================
   Memory Neon
=================================================== */

.memory-page {
  text-align: center;
}

.memory-page .game-header {
  max-width: 980px;
}

.memory-board {
  width: min(520px, 92vw);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 1.25rem auto 0;
  padding: 1rem;
  border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent);
  border-radius: 16px;
  background: rgba(6, 6, 16, 0.68);
  box-shadow:
    0 0 30px color-mix(in srgb, var(--accent) 12%, transparent),
    inset 0 0 28px rgba(255, 255, 255, 0.02);
}

.card {
  aspect-ratio: 1 / 1;
  border: 1px solid color-mix(in srgb, var(--accent) 38%, transparent);
  border-radius: 14px;
  background:
    linear-gradient(145deg, rgba(17, 17, 38, 0.95), rgba(8, 8, 20, 0.95));
  color: var(--accent);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 5vw, 2.2rem);
  text-shadow: 0 0 14px color-mix(in srgb, var(--accent) 80%, transparent);
  box-shadow:
    0 0 16px color-mix(in srgb, var(--accent) 12%, transparent),
    inset 0 0 18px rgba(0, 245, 255, 0.04);
  transition:
    transform 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 70%, transparent);
  box-shadow:
    0 0 22px color-mix(in srgb, var(--accent) 22%, transparent),
    inset 0 0 22px rgba(0, 245, 255, 0.07);
}

.card.flipped {
  background:
    radial-gradient(circle at center, rgba(0, 245, 255, 0.22), rgba(17, 17, 38, 0.96));
  color: #ffffff;
  border-color: var(--accent);
  transform: scale(1.03);
}

.card.matched {
  background:
    radial-gradient(circle at center, rgba(57, 255, 20, 0.2), rgba(17, 17, 38, 0.96));
  color: var(--good);
  border-color: color-mix(in srgb, var(--good) 70%, transparent);
  box-shadow:
    0 0 22px color-mix(in srgb, var(--good) 24%, transparent),
    inset 0 0 20px rgba(57, 255, 20, 0.08);
}

.game-note {
  margin-top: 0.9rem;
  color: var(--text);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

@media (max-width: 560px) {
  .memory-board {
    width: min(360px, 94vw);
    gap: 10px;
    padding: 0.75rem;
  }

  .game-header {
    flex-direction: column;
  }

  .back-link,
  .neon-btn {
    width: 100%;
    max-width: 240px;
  }
}