.hsf-wrapper {
    max-width: 720px;
    margin: 24px auto;
    padding: 24px;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    box-shadow: 0 12px 35px rgba(0,0,0,0.06);
}
.hsf-form {
    display: grid;
    gap: 18px;
}
.hsf-field label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #111827;
}
.hsf-field label span {
    color: #dc2626;
}
.hsf-field input,
.hsf-field select {
    width: 100%;
    min-height: 48px;
    padding: 12px 14px;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    font-size: 15px;
    box-sizing: border-box;
    background: #fff;
}
.hsf-field input:focus,
.hsf-field select:focus {
    outline: none;
    border-color: #111827;
    box-shadow: 0 0 0 3px rgba(17, 24, 39, 0.08);
}
.hsf-submit-row { margin-top: 4px; }
.hsf-field button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 160px;
    min-height: 48px;
    background: #111827;
    color: #ffffff;
    padding: 13px 20px;
    border: 0;
    border-radius: 10px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 700;
}
.hsf-field button:disabled {
    opacity: .7;
    cursor: not-allowed;
}
.hsf-alert {
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 14px;
    line-height: 1.6;
}
.hsf-success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}
.hsf-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}