.simple-form {
    max-width: 500px;
    margin: 20px 0;
}
/* Standalone shareable form page (#247): centre the form with comfortable
   page padding. Embedded in an iframe, the body has no chrome of its own. */
.sf-standalone-main {
    max-width: 640px;
    margin: 40px auto;
    padding: 0 16px;
}
.sf-standalone-main .simple-form {
    max-width: none;
    margin: 0;
}
.simple-form-group {
    margin-bottom: 20px;
}
.simple-form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}
.simple-form-group .required {
    color: red;
}
.simple-form-group .help-text {
    display: block;
    margin-top: 5px;
    font-size: 0.9em;
    color: #666;
}
.simple-form-group input[type="text"],
.simple-form-group input[type="email"],
.simple-form-group input[type="date"],
.simple-form-group input[type="number"],
.simple-form-group textarea,
.simple-form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1em;
}
.simple-form-group textarea {
    resize: vertical;
}
.simple-form-submit-btn {
    background-color: #0066cc;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1em;
}
.simple-form-submit-btn:hover {
    background-color: #0052a3;
}
.simple-form .form-error {
    color: red;
    font-size: 0.9em;
    margin-top: 5px;
}

/* Form-level error summary (no-JS POST round-trip / hand-authored layouts).
   Reset the browser's default bullet + indent so it reads as a clean list. */
.simple-form-errors {
    list-style: none;
    margin: 0 0 16px;
    padding: 0;
    color: #b91c1c;
}
.simple-form-errors li {
    margin: 2px 0;
}

/* Multi-column rows: a CSS grid that collapses on mobile (no JS). Column widths
   come from the inline `--sf-cols` custom property (e.g. "2fr 1fr" for a 66/33
   split); the per-field weight is set in the builder. The data-cols fallbacks
   below keep older cached markup (no --sf-cols) rendering as equal columns. */
.simple-form-row {
    display: grid;
    gap: 1rem;
    grid-template-columns: var(--sf-cols, 1fr);
}
/* When `--sf-cols` is present (new markup) it wins; the repeat() fallback keeps
   older cached markup, which only has data-cols, rendering as equal columns. */
.simple-form-row[data-cols="2"] { grid-template-columns: var(--sf-cols, repeat(2, 1fr)); }
.simple-form-row[data-cols="3"] { grid-template-columns: var(--sf-cols, repeat(3, 1fr)); }
.simple-form-row[data-cols="4"] { grid-template-columns: var(--sf-cols, repeat(4, 1fr)); }
.simple-form-col { min-width: 0; }
/* Give multi-column layouts room to breathe without affecting single-column
   forms (their .simple-form max-width is unchanged). */
.simple-form:has(.simple-form-row) { max-width: 720px; }
@media (max-width: 600px) {
    /* Match the [data-cols]/--sf-cols specificity so the collapse always wins. */
    .simple-form-row,
    .simple-form-row[data-cols] { grid-template-columns: 1fr; }
}

/* Save & resume */
.simple-form-save-resume { margin-left: .5em; }
.simple-form-resume-link {
    margin-top: 1em;
    padding: .75em 1em;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    background: #f8fafc;
}
.simple-form-resume-link p { margin: 0 0 .5em; }
.simple-form-resume-row { display: flex; gap: .5em; }
.simple-form-resume-url { flex: 1; }

/* Presentational / layout blocks (heading, divider, html) */
.simple-form-layout { margin: 18px 0; }
.simple-form-heading { margin: 0 0 .25em; }
.simple-form-divider { border: 0; border-top: 1px solid #d4d9df; margin: 0; }
.simple-form-divider--labelled {
    display: flex; align-items: center; gap: .75em; color: #6b7280;
}
.simple-form-divider--labelled hr { flex: 1; }
.simple-form-divider__label { white-space: nowrap; font-size: .9em; }
.simple-form-html :first-child { margin-top: 0; }
.simple-form-html :last-child { margin-bottom: 0; }

/* Callout — a toned guidance panel (info/success/warning/error) */
.simple-form-callout {
    display: flex; gap: .6em; align-items: flex-start;
    padding: .75em 1em; border-left: 4px solid; border-radius: 4px;
    font-size: .95em; line-height: 1.5;
}
.simple-form-callout__icon { flex: 0 0 auto; line-height: 1.5; }
.simple-form-callout__body :first-child { margin-top: 0; }
.simple-form-callout__body :last-child { margin-bottom: 0; }
.simple-form-callout--info { background: #eef4fd; border-color: #3b82f6; color: #1e3a5f; }
.simple-form-callout--success { background: #ecfdf3; border-color: #22c55e; color: #14532d; }
.simple-form-callout--warning { background: #fef8ec; border-color: #f59e0b; color: #713f12; }
.simple-form-callout--error { background: #fdeeee; border-color: #ef4444; color: #7f1d1d; }

/* Rating (#128) — a native radio group styled into star/heart/number controls.
   The radios stay in the DOM (no-JS fallback + screen-reader semantics); only
   their visual box is replaced by the label's icon/pill. */
.sf-rating {
    display: inline-flex;
    flex-direction: row;
    gap: .25em;
}
.sf-rating-input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}
.sf-rating-label {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    font-weight: normal;
}
.sf-rating-text {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}
.sf-rating-icon {
    font-size: 1.8em;
    line-height: 1;
    color: #cbd5e1;
    transition: color .1s ease;
}
.sf-rating[data-icon-style="star"] .sf-rating-icon::before { content: "\2605"; }
.sf-rating[data-icon-style="heart"] .sf-rating-icon::before { content: "\2665"; }
.sf-rating[data-icon-style="number"] .sf-rating-label {
    width: 2em;
    height: 2em;
    justify-content: center;
    border: 1px solid #cbd5e1;
    border-radius: 50%;
    margin-right: .15em;
}
.sf-rating[data-icon-style="number"] .sf-rating-icon { display: none; }
.sf-rating[data-icon-style="number"] .sf-rating-text {
    position: static;
    width: auto;
    height: auto;
    clip: auto;
}
/* Selected / hover fill. The number style fills its pill instead of a glyph. */
.sf-rating-input:checked + .sf-rating-label .sf-rating-icon { color: #f59e0b; }
.sf-rating[data-icon-style="heart"] .sf-rating-input:checked + .sf-rating-label .sf-rating-icon { color: #e11d48; }
.sf-rating[data-icon-style="number"] .sf-rating-input:checked + .sf-rating-label {
    background: #0b69a3;
    border-color: #0b69a3;
    color: #fff;
}
.sf-rating-input:focus-visible + .sf-rating-label {
    outline: 2px solid #0b69a3;
    outline-offset: 2px;
}

/* Opinion / NPS scale (#128) — a labelled horizontal strip of numbered radios. */
.sf-opinion {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .5em;
}
.sf-opinion-anchor {
    font-size: .9em;
    color: #475569;
}
.sf-opinion-scale {
    display: inline-flex;
    gap: .25em;
}
.sf-opinion-input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}
.sf-opinion-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.2em;
    height: 2.2em;
    padding: 0 .4em;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    cursor: pointer;
    font-weight: normal;
}
.sf-opinion-input:checked + .sf-opinion-label {
    background: #0b69a3;
    border-color: #0b69a3;
    color: #fff;
}
.sf-opinion-input:focus-visible + .sf-opinion-label {
    outline: 2px solid #0b69a3;
    outline-offset: 2px;
}

/* Signature pad (#129) */
.simple-form-signature { max-width: 100%; }
.simple-form-signature__canvas {
    display: block;
    width: 100%;
    height: 150px;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    background: #fff;
    touch-action: none;
    cursor: crosshair;
}
.simple-form-signature__controls {
    display: flex;
    align-items: center;
    gap: .75em;
    margin-top: .4em;
}
.simple-form-signature__hint { color: #64748b; }
.simple-form-signature__nojs { color: #b91c1c; }

/* Post-submit inline success (#133) */
.simple-form-success {
    padding: .75em 1em;
    border: 1px solid #bbf7d0;
    border-radius: 4px;
    background: #f0fdf4;
    color: #166534;
}

/* Address autocomplete (#250) */
.sf-address-autocomplete {
    position: relative;
    margin-bottom: .75em;
}
.sf-address-suggestions {
    position: absolute;
    z-index: 20;
    left: 0;
    right: 0;
    margin: 2px 0 0;
    padding: 0;
    list-style: none;
    background: #fff;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .08);
    max-height: 240px;
    overflow-y: auto;
}
.sf-address-suggestion {
    padding: .5em .7em;
    cursor: pointer;
    font-size: .95em;
}
.sf-address-suggestion:hover,
.sf-address-suggestion[aria-selected="true"] {
    background: #eff6ff;
}
.sf-address-message {
    margin: .4em 0 0;
    font-size: .9em;
    color: #b91c1c;
}
.sf-address-message:empty {
    display: none;
}

/* Coupon / discount code box (#246) */
.simple-form-coupon {
    margin: .75em 0;
}
.simple-form-coupon-label {
    display: block;
    margin-bottom: .35em;
    font-weight: 600;
}
.simple-form-coupon-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.simple-form-coupon-input {
    flex: 1 1 auto;
    min-width: 0;
}
.simple-form-coupon-apply {
    flex: 0 0 auto;
    cursor: pointer;
}
.simple-form-coupon-apply[disabled] {
    opacity: .6;
    cursor: default;
}
.simple-form-coupon-message {
    margin: .4em 0 0;
    font-size: .9em;
}
.simple-form-coupon-message.simple-form-coupon-ok { color: #166534; }
.simple-form-coupon-message.simple-form-coupon-error { color: #b91c1c; }

/* Conversational render mode (#239): one screen at a time + a nav row. The
   screens toggle via the [hidden] attribute; a gentle slide-up eases the change,
   suppressed under prefers-reduced-motion. */
.simple-form-step-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
}
.simple-form-step-progress {
    margin-left: auto;
    color: #6b7280;
    font-size: .9em;
}
.simple-form--conversational .simple-form-step:not([hidden]) {
    animation: sf-screen-in .25s ease;
}
@keyframes sf-screen-in {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
    .simple-form--conversational .simple-form-step:not([hidden]) { animation: none; }
    .simple-form--conversational .simple-form-progressbar > span { transition: none; }
}

/* Built-in conversational theme (#243): an opinionated, accessible "centered
   card" default so conversational mode is usable with zero theming — a centered
   card, hero-sized question, thin top progress bar, roomy inputs. Every rule is
   scoped to .simple-form--conversational and uses a single class' worth of
   specificity, so a host site can override any of it with its own CSS. */
.simple-form--conversational {
    position: relative;
    max-width: 640px;
    margin-inline: auto;
    padding: 34px clamp(20px, 5vw, 48px) 28px;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    box-shadow: 0 10px 40px rgba(2, 6, 23, .08);
}

/* Thin progress bar pinned to the card's top edge. */
.simple-form--conversational .simple-form-progressbar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: #eef2f7;
    border-radius: 14px 14px 0 0;
    overflow: hidden;
}
.simple-form--conversational .simple-form-progressbar > span {
    display: block;
    height: 100%;
    width: 0;
    background: #2563eb;
    transition: width .3s ease;
}

/* One question per screen, with a stable min-height so the card doesn't jump. */
.simple-form--conversational .simple-form-step {
    min-height: 168px;
}

/* Hero-sized question (the field label) + muted help text. */
.simple-form--conversational .simple-form-step .simple-form-group > label,
.simple-form--conversational .simple-form-step .simple-form-label {
    display: block;
    font-size: clamp(1.4rem, 1rem + 1.6vw, 2rem);
    font-weight: 600;
    line-height: 1.25;
    margin-bottom: .5em;
}
.simple-form--conversational .simple-form-step .help-text {
    display: block;
    font-size: 1rem;
    color: #6b7280;
    margin-bottom: 1em;
}

/* Roomy, touch-friendly controls. */
.simple-form--conversational .simple-form-step input:not([type="checkbox"]):not([type="radio"]):not([type="file"]),
.simple-form--conversational .simple-form-step select,
.simple-form--conversational .simple-form-step textarea {
    width: 100%;
    font-size: 1.1rem;
    padding: .7em .8em;
}

/* Prominent forward action; the progress text stays muted at the end of the row. */
.simple-form--conversational .simple-form-step-nav {
    margin-top: 24px;
}
.simple-form--conversational .simple-form-step-next,
.simple-form--conversational .simple-form-submit-btn {
    font-size: 1.05rem;
    padding: .6em 1.4em;
    cursor: pointer;
}

/* Always-visible keyboard focus (a11y). */
.simple-form--conversational :focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

@media (max-width: 600px) {
    .simple-form--conversational {
        border-radius: 10px;
        padding: 28px 18px 22px;
    }
}