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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
    animation: fadeInDown 0.6s ease-out;
}

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

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

.main-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.6s ease-out;
}

.card h2 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.input-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.input-form input {
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.input-form input:focus {
    outline: none;
    border-color: #667eea;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, #11998e, #38ef7d);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, #f093fb, #f5576c);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #fa709a, #fee140);
    color: #333;
}

.items-list {
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 15px;
}

.item {
    background: #f8f9fa;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: slideIn 0.3s ease-out;
    border-left: 4px solid #667eea;
}

.item-info {
    flex: 1;
}

.item-title {
    font-weight: 600;
    font-size: 1.1rem;
    color: #333;
    margin-bottom: 5px;
}

.item-details {
    color: #666;
    font-size: 0.9rem;
}

.item-delete {
    background: #ff4757;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.3s;
}

.item-delete:hover {
    background: #ff3838;
}

.summary {
    padding: 15px;
    background: linear-gradient(135deg, #667eea15, #764ba215);
    border-radius: 8px;
    text-align: center;
    font-size: 1.1rem;
}

.stats-section {
    grid-column: 1 / -1;
}

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

.stat-item {
    background: linear-gradient(135deg, #667eea15, #764ba215);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

.stat-label {
    display: block;
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: #667eea;
}

footer {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 20px;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    footer {
        flex-direction: column;
    }
}

/* Scrollbar personalizzata */
.items-list::-webkit-scrollbar {
    width: 8px;
}

.items-list::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.items-list::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 10px;
}

.items-list::-webkit-scrollbar-thumb:hover {
    background: #764ba2;
}