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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    font-weight: 400;
}

.operator-info {
    font-size: 1rem;
    opacity: 0.8;
    font-weight: 400;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    display: inline-block;
    margin-top: 10px;
}

main {
    flex: 1;
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    margin-bottom: 20px;
}

.travel-section {
    margin-bottom: 40px;
}

.travel-section h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #333;
    text-align: center;
}

.button-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.location-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 20px;
    border-radius: 15px;
    font-size: 1.3rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.location-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.location-btn.selected {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.4);
}

.result-section {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 25px;
    margin-top: 30px;
    border-left: 5px solid #667eea;
}

.result-section h2 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.6rem;
}

.instructions {
    font-size: 1.1rem;
    line-height: 1.8;
}

.instruction-item {
    background: white;
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 10px;
    border-left: 4px solid #667eea;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.instruction-item h3 {
    color: #667eea;
    margin-bottom: 8px;
    font-size: 1.2rem;
}

.instruction-item p {
    color: #555;
    margin: 0;
}

.reset-btn {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a52 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
    margin: 20px auto;
    display: block;
}

.reset-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

footer {
    text-align: center;
    color: white;
    opacity: 0.8;
    font-size: 1rem;
}

.ripasso-link {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 25px;
    margin-top: 15px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.ripasso-link:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.3);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    main {
        padding: 20px;
    }
    
    .button-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .location-btn {
        font-size: 1.1rem;
        padding: 18px;
        min-height: 70px;
    }
    
    .travel-section h2 {
        font-size: 1.5rem;
    }
}

/* Animazioni */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-section {
    animation: fadeIn 0.5s ease-out;
}

/* Effetti di focus per accessibilità */
.location-btn:focus {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

.reset-btn:focus {
    outline: 3px solid #ff6b6b;
    outline-offset: 2px;
}