: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: 2rem; }
.back-btn { text-decoration: none; background: #5c6bc0; color: white; padding: 10px 20px; border-radius: 20px; font-weight: bold; box-shadow: 0 4px 0 #3949ab; }
.back-btn:active { transform: translateY(4px); box-shadow: 0 0 0; }
h1 { font-size: 2rem; color: #3f51b5; text-shadow: 2px 2px 0 #000; }

.arena { display: flex; justify-content: space-between; align-items: center; width: 100%; background: white; padding: 20px; border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); margin-bottom: 2rem;}
.player { display: flex; flex-direction: column; align-items: center; }
.player h3 { font-size: 1.5rem; margin-bottom: 10px; color: #7986cb; }
.emoji-display { font-size: 5rem; width: 100px; height: 100px; display: flex; justify-content: center; align-items: center; background: #e8eaf6; border-radius: 50%; transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);}
.emoji-display.pop { transform: scale(1.2); }
.vs { font-size: 2rem; font-weight: 900; color: #ff5252; }

.result-msg { font-size: 2rem; height: 3rem; margin-bottom: 2rem; text-align: center; }

.controls { display: flex; gap: 20px; }
.choice-btn { width: 80px; height: 80px; border-radius: 50%; border: none; background: #ffeb3b; font-size: 3rem; cursor: pointer; box-shadow: 0 6px 0 #fbc02d; transition: transform 0.1s; }
.choice-btn:active { transform: translateY(6px); box-shadow: none; }