:root { --bg: #1a1a1a; --text: #4caf50; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Outfit', sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; display: flex;
    flex-direction: column; justify-content: flex-start; align-items: center; }
.game-container { width: 100%; max-width: 500px; padding: 1rem; display: flex; flex-direction: column; align-items: center; position: relative;}
header { width: 100%; display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.back-btn { text-decoration: none; background: #00acc1; color: white; padding: 10px 20px; border-radius: 20px; font-weight: bold; box-shadow: 0 4px 0 #00838f; }
.back-btn:active { transform: translateY(4px); box-shadow: 0 0 0; }
h1 { font-size: 2rem; color: #00bcd4; text-shadow: 2px 2px 0 #000; }
.instruction { font-size: 1.5rem; margin-bottom: 2rem; font-weight: bold; text-align: center;}

.items-container { display: flex; gap: 20px; width: 100%; height: 200px; justify-content: center; align-items: flex-end; background: white; padding: 20px; border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.item { cursor: pointer; user-select: none; transition: transform 0.2s, opacity 0.2s; filter: drop-shadow(0 5px 5px rgba(0,0,0,0.2));}
.item:active { transform: scale(0.9); }
.item.selected { opacity: 0.3; pointer-events: none; transform: translateY(-20px); }
.item.wrong { animation: shake 0.3s; }

@keyframes shake { 0% { transform: translateX(0); } 25% { transform: translateX(10px); } 50% { transform: translateX(-10px); } 75% { transform: translateX(10px); } 100% { transform: translateX(0); } }

.overlay { position: absolute; inset: 0; background: rgba(30,30,30,0.95); display: flex; flex-direction: column; justify-content: center; align-items: center; z-index: 10; border-radius: 20px; }
.overlay h2 { font-size: 3rem; color: #4caf50; margin-bottom: 1rem; text-align: center;}
.btn { background: #4caf50; border: none; padding: 15px 40px; font-size: 1.5rem; font-weight: 900; border-radius: 50px; cursor: pointer; color: white; font-family: 'Outfit'; box-shadow: 0 5px 0 #388e3c; }
.btn:active { transform: translateY(5px); box-shadow: none; }
.hidden { display: none !important; }