.sfb-form {
    --sfb-accent: #005a9c;
    --sfb-focus: #005fcc;
    --sfb-error: #b32d2e;
    --sfb-error-bg: #fcf0f1;
    --sfb-success: #0a6b2b;
    --sfb-success-bg: #edfaef;
    --sfb-border: #6f7780;
    color: inherit;
    display: grid;
    gap: 16px;
    max-width: 720px;
}

.sfb-form * {
    box-sizing: border-box;
}

.sfb-field {
    display: grid;
    gap: 6px;
}

.sfb-field label,
.sfb-field legend {
    font-weight: 600;
}

.sfb-field input,
.sfb-field textarea,
.sfb-field select {
    background: #fff;
    border: 1px solid var(--sfb-border);
    border-radius: 6px;
    color: inherit;
    font: inherit;
    min-height: 44px;
    padding: 10px 12px;
    width: 100%;
}

.sfb-field textarea {
    min-height: 132px;
    resize: vertical;
}

.sfb-field input:focus,
.sfb-field textarea:focus,
.sfb-field select:focus,
.sfb-submit:focus {
    outline: 3px solid var(--sfb-focus);
    outline-offset: 2px;
}

.sfb-phone {
    display: grid;
    grid-template-columns: minmax(76px, 112px) 1fr;
}

.sfb-phone .sfb-phone-prefix {
    border-radius: 6px 0 0 6px;
    text-align: center;
}

.sfb-phone input:not(.sfb-phone-prefix) {
    border-left: 0;
    border-radius: 0 6px 6px 0;
}

.sfb-checkbox,
.sfb-radio {
    align-items: flex-start;
    display: flex;
    gap: 10px;
}

.sfb-checkbox input,
.sfb-radio input {
    flex: 0 0 auto;
    margin-top: 4px;
    min-height: auto;
    width: auto;
}

.sfb-error,
.sfb-error-summary {
    color: var(--sfb-error);
    font-weight: 600;
}

.sfb-error-summary,
.sfb-success {
    border-radius: 6px;
    padding: 12px 14px;
}

.sfb-error-summary {
    background: var(--sfb-error-bg);
    border: 2px solid var(--sfb-error);
}

.sfb-success {
    background: var(--sfb-success-bg);
    border: 2px solid var(--sfb-success);
    color: var(--sfb-success);
}

.sfb-submit {
    align-items: center;
    background: var(--sfb-accent);
    border: 2px solid var(--sfb-accent);
    border-radius: 6px;
    color: #fff;
    cursor: pointer;
    display: inline-flex;
    font: inherit;
    font-weight: 700;
    justify-content: center;
    min-height: 46px;
    padding: 10px 20px;
    width: fit-content;
}

.sfb-submit:hover {
    background: #004b82;
    border-color: #004b82;
    filter: none;
}