body {
    font-family: 'Arial', sans-serif;
    background-color: #f5f6f5;
}

header {
    background-color: #dc3545;
    color: white;
    padding: 1rem 0;
}

header h1 {
    font-size: 1.5rem;
    margin: 0;
}

.section-border {
    border: 1px solid #d7dadd;
    border-radius: 8px;
    background-color: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.form-control {
    background-color: #e9ecef;
    border-radius: 6px;
}

.form-label {
    font-weight: 500;
}

.btn-custom {
    background-color: #6c757d;
    border-color: #6c757d;
    border-radius: 6px;
    padding: 0.5rem 1.5rem;
}

.btn-custom:disabled {
    background-color: #adb5bd;
    border-color: #adb5bd;
}

.icon-list i {
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

.result-placeholder {
    background-color: #e9ecef;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.bd-title {
    border: 1px solid #d7dadd;
}

.bd-lr-none {
    border-left: none;
    border-right: none;
}

.tooltip-content {
    max-width: 250px;
    text-align: left;
    padding: 5px;
}

.tooltip-content img {
    margin-top: 8px;
    border: 1px solid #ddd;
}

.tooltip {
    --bs-tooltip-max-width: 300px;
}

.popover {
    max-width: 400px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.popover-content {
    padding: 5px;
}

.popover-content img {
    margin-top: 8px;
    border: 1px solid #ddd;
    max-width: 100%;
}

footer {
    background-color: #f8f9fa;
    padding: 1rem 0;
    color: #333;
}