.ubf-wrapper {
    max-width: 1000px;
    margin: 30px auto;
    background: #ffffff;
    border: 1px solid #dfe3e8;
    border-radius: 8px;
    padding: 24px;
    box-sizing: border-box;
}

.ubf-message {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 14px;
}

.ubf-message-success {
    background: #ecf9f0;
    color: #17663a;
    border: 1px solid #b8e3c7;
}

.ubf-message-error {
    background: #fff1f1;
    color: #8b1e1e;
    border: 1px solid #f0b5b5;
}

.ubf-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
}

.ubf-required {
    color: #c62828;
}

.ubf-grid {
    display: grid;
    gap: 16px;
}

.ubf-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.ubf-field {
    margin-bottom: 16px;
}

.ubf-form input[type="text"],
.ubf-form input[type="email"],
.ubf-form input[type="number"],
.ubf-form input[type="date"],
.ubf-form select,
.ubf-form textarea {
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    border: 1px solid #cfd8dc;
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 14px;
    background: #fff;
}

.ubf-form textarea {
    min-height: 120px;
    resize: vertical;
}

.ubf-checkbox label {
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.ubf-volume-section {
    margin-top: 20px;
    border-top: 1px solid #e5e7eb;
    padding-top: 20px;
}

.ubf-section-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

.ubf-volume-row {
    display: grid;
    grid-template-columns: 2fr 1fr 120px;
    gap: 16px;
    align-items: end;
    margin-bottom: 12px;
    padding: 12px;
    background: #f8fafc;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
}

.ubf-remove-wrap button,
.ubf-add-row-btn,
.ubf-submit button {
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

.ubf-remove-wrap button {
    background: #dc3545;
    color: #fff;
    padding: 11px 14px;
    width: 100%;
}

.ubf-add-row-btn {
    background: #1565c0;
    color: #fff;
    padding: 12px 18px;
    margin-top: 6px;
}

.ubf-submit {
    margin-top: 24px;
}

.ubf-submit button {
    background: #0b5ed7;
    color: #fff;
    padding: 14px 24px;
    font-weight: 600;
}

@media (max-width: 768px) {
    .ubf-grid-2 {
        grid-template-columns: 1fr;
    }

    .ubf-volume-row {
        grid-template-columns: 1fr;
    }

    .ubf-wrapper {
        padding: 18px;
    }
}