:root {
  --bg-a: #fff8e7;
  --bg-b: #dff7ff;
  --card: #ffffff;
  --text: #1e293b;
  --muted: #475569;
  --primary: #ff7f50;
  --primary-hover: #ff6b3d;
  --success: #16a34a;
  --danger: #dc2626;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 15% 20%, var(--bg-a), transparent 45%),
    radial-gradient(circle at 85% 10%, #e9ffe7, transparent 40%),
    linear-gradient(135deg, var(--bg-b), #fffaf0);
  display: grid;
  place-items: center;
  padding: 16px;
}

.app {
  width: min(900px, 100%);
}

.screen {
  background: var(--card);
  border-radius: 20px;
  box-shadow: 0 14px 30px rgba(30, 41, 59, 0.15);
  padding: 24px;
  text-align: center;
  border: 6px solid #ff7f50;
  animation: borderRainbow 6s linear infinite;
}

@keyframes borderRainbow {
  0% { border-color: #ff7f50; }
  33% { border-color: #47b8ff; }
  66% { border-color: #4ade80; }
  100% { border-color: #ff7f50; }
}

.game-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2) !important;
}

.primary-btn {
  border: none;
  background: var(--primary);
  color: #fff;
  padding: 12px 24px;
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease;
}

.primary-btn:hover { background: var(--primary-hover); transform: translateY(-2px) scale(1.02); }

.secondary-btn {
  border: none;
  background: #3b82f6;
  color: #fff;
  padding: 12px 24px;
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease;
}

.secondary-btn:hover { background: #2563eb; transform: translateY(-2px) scale(1.02); }