body {
    background: linear-gradient(135deg, #4b6cb7 0%, #182848 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333;
}

.game-container {
    width: 90%;
    max-width: 500px;
}

.card {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 15px 25px rgba(0,0,0,0.2);
    border: none;
    overflow: hidden;
}

h1 {
    color: #2c3e50;
    font-size: 2rem;
}

.badge {
    font-size: 0.9rem;
    padding: 0.5rem 0.8rem;
}

#guessInput {
    font-size: 1.5rem;
    height: 60px;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
    border: 1px solid #ced4da;
}

.btn-primary {
    background-color: #3498db;
    border-color: #3498db;
    transition: all 0.3s;
}

.btn-primary:hover {
    background-color: #2980b9;
    border-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.btn-outline-secondary:hover {
    transform: rotate(15deg);
}

.result-message {
    min-height: 30px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.animate-success {
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.message-area {
    min-height: 80px;
}

.text-warning {
    color: #f39c12 !important;
}

.text-success {
    color: #2ecc71 !important;
}

.text-danger {
    color: #e74c3c !important;
}