.htb-wrapper {
    width: 100%;
    margin: 20px auto;
    direction: rtl;
    font-family: inherit;
}

.htb-card {
    background: #ffffff;
    border: 1px solid #e8edf3;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 8px 30px rgba(20, 40, 80, 0.06);
    max-width: 760px;
}

.htb-title {
    margin: 0 0 20px;
    font-size: 24px;
    font-weight: 700;
    color: #1f2d3d;
}

.htb-form {
    width: 100%;
}

.htb-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.htb-field {
    display: flex;
    flex-direction: column;
}

.htb-field-full {
    grid-column: 1 / -1;
}

.htb-field label {
    margin-bottom: 8px;
    color: #344054;
    font-size: 14px;
    font-weight: 600;
}

.htb-field input {
    width: 100%;
    height: 46px;
    border: 1px solid #d0d5dd;
    border-radius: 12px;
    padding: 0 14px;
    font-size: 15px;
    outline: none;
    transition: 0.2s ease;
    background: #fff;
}

.htb-field input:focus {
    border-color: #1d9bf0;
    box-shadow: 0 0 0 4px rgba(29, 155, 240, 0.12);
}

.htb-summary {
    margin-top: 20px;
    padding: 18px;
    background: #f8fbff;
    border: 1px solid #dbeafe;
    border-radius: 14px;
}

.htb-summary-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    font-size: 16px;
}

.htb-summary-row strong {
    font-size: 20px;
    color: #0f766e;
}

.htb-currency {
    font-size: 14px;
    color: #475467;
}

.htb-actions {
    margin-top: 20px;
}

#htb_submit_btn {
    width: 100%;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, #0ea5e9, #2563eb);
    color: #fff;
    height: 50px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: 0.2s ease;
}

#htb_submit_btn:hover {
    opacity: 0.94;
    transform: translateY(-1px);
}

#htb_submit_btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.htb-message {
    margin-top: 16px;
    padding: 14px 16px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.8;
}

.htb-message.success {
    background: #ecfdf3;
    border: 1px solid #abefc6;
    color: #067647;
}

.htb-message.error {
    background: #fef3f2;
    border: 1px solid #fecdca;
    color: #b42318;
}

.htb-message.loading {
    background: #eff8ff;
    border: 1px solid #b2ddff;
    color: #175cd3;
}

@media (max-width: 767px) {
    .htb-card {
        padding: 18px;
    }

    .htb-grid {
        grid-template-columns: 1fr;
    }

    .htb-title {
        font-size: 20px;
    }
}