:root {
    --befs-primary: #ff3363;
}
.befs-tool {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    padding: 25px;
    margin-bottom: 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.befs-tool:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}
.befs-tool h2 {
    color: var(--befs-primary);
    margin-bottom: 20px;
    font-size: 1.8rem;
}
.befs-form-group {
    margin-bottom: 15px;
}
.befs-form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 5px;
}
.befs-form-group input,
.befs-form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
}
.befs-submit-btn {
    background: var(--befs-primary);
    color: #fff;
    border: none;
    padding: 12px 25px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.2s ease;
}
.befs-submit-btn:hover {
    background: #e02e5a;
}
.befs-result {
    margin-top: 25px;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 15px;
    border-left: 5px solid var(--befs-primary);
}
.befs-loader {
    display: none;
    text-align: center;
    margin: 20px 0;
}
.befs-loader .spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid rgba(0,0,0,0.1);
    border-radius: 50%;
    border-top-color: var(--befs-primary);
    animation: spin 1s ease-in-out infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}
.befs-copy-btn {
    background: #eee;
    border: none;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    margin-left: 10px;
    font-size: 0.8rem;
}
.befs-copy-btn:hover {
    background: #ddd;
}
.befs-hashtag-category {
    margin-bottom: 20px;
}
.befs-hashtag-category h4 {
    margin-bottom: 10px;
}
.befs-hashtag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.befs-hashtag-list span {
    background: #f0f0f0;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
}
@media (min-width: 768px) {
    .befs-form-row {
        display: flex;
        gap: 20px;
    }
    .befs-form-row .befs-form-group {
        flex: 1;
    }
}