/* Laplace Transform Calculator CSS - Preserved exactly from original tool */
.laplace-calculator-container * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.laplace-calculator-container body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.laplace-calculator-container .container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.laplace-calculator-container .input-section {
    background-color: white;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.laplace-calculator-container .form-group {
    margin-bottom: 20px;
}

.laplace-calculator-container label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}

.laplace-calculator-container input[type="text"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.laplace-calculator-container input[type="text"]:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.laplace-calculator-container .button-group {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

.laplace-calculator-container button {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.laplace-calculator-container #calculate-btn {
    background-color: #3498db;
    color: white;
}

.laplace-calculator-container #calculate-btn:hover {
    background-color: #2980b9;
}

.laplace-calculator-container #clear-btn {
    background-color: #e74c3c;
    color: white;
}

.laplace-calculator-container #clear-btn:hover {
    background-color: #c0392b;
}

.laplace-calculator-container .results-section {
    background-color: white;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: none;
}

.laplace-calculator-container .result-item {
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.laplace-calculator-container .result-title {
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 18px;
}

.laplace-calculator-container .result-content {
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 6px;
    white-space: pre-wrap;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.5;
}

.laplace-calculator-container .step-by-step {
    max-height: 300px;
    overflow-y: auto;
}

.laplace-calculator-container #export-btn {
    background-color: #28a745;
    color: #ffffff;
    border-radius: 6px;
    font-size: 12px;
    padding: 8px 16px;
    margin-top: 10px;
}

.laplace-calculator-container #export-btn:hover {
    background-color: #218838;
}

.laplace-calculator-container #export-btn:disabled {
    background-color: #6c757d;
    cursor: not-allowed;
}

.laplace-calculator-container .error-message {
    color: #e74c3c;
    margin-top: 5px;
    font-size: 14px;
}

.laplace-calculator-container .trademark {
    position: relative;
    text-align: right;
    margin-top: 20px;
    font-size: 12px;
    color: #7f8c8d;
}

@media (max-width: 768px) {
    .laplace-calculator-container .button-group {
        flex-direction: column;
    }
    
    .laplace-calculator-container button {
        width: 100%;
    }
}