/* Random Number Generator Styles */
.calculator-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.form-group input[type="checkbox"] {
    margin-right: 8px;
    margin-bottom: 0;
}

.form-group small {
    color: var(--text-muted);
    font-size: 0.85em;
    margin-top: 4px;
}

.results-section {
    margin-top: 30px;
    padding: 25px;
    background: var(--background-alt);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.results-display {
    margin: 20px 0;
}

.numbers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 10px;
    margin-bottom: 20px;
    max-height: 300px;
    overflow-y: auto;
    padding: 15px;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.number-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border-radius: 6px;
    font-weight: 600;
    font-size: 14px;
    text-align: center;
    word-break: break-all;
}

.results-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.results-actions .btn {
    flex: 1;
    min-width: 140px;
}

.results-summary {
    padding: 15px;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.6;
}

.results-summary strong {
    color: var(--primary-color);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.error-messages {
    background: #f8d7da;
    color: #721c24;
    padding: 12px 15px;
    border-radius: 6px;
    margin-bottom: 15px;
    border: 1px solid #f1aeb5;
}

.error-messages ul {
    margin: 0;
    padding-left: 20px;
}

.form-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 25px;
}

.form-actions .btn {
    min-width: 150px;
}

/* Responsive design */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .numbers-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
        gap: 8px;
    }
    
    .number-item {
        padding: 8px;
        font-size: 12px;
    }
    
    .results-actions {
        flex-direction: column;
    }
    
    .results-actions .btn {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        min-width: auto;
    }
}

/* Dark mode adjustments */
[data-theme="dark"] .error-messages {
    background: #2d1b1e;
    color: #f1aeb5;
    border-color: #721c24;
}

[data-theme="dark"] .number-item {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Animation for number generation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.number-item {
    animation: fadeInUp 0.3s ease-out;
}

.number-item:nth-child(even) {
    animation-delay: 0.1s;
}

.number-item:nth-child(odd) {
    animation-delay: 0.05s;
}