/* P26M — ROI Calculator: form fields — sliders, radios, inputs, validation.
 * Page-scoped: enqueued only on page-roi-calculator template.
 */

/* ── Field groups ──────────────────────────────────────────────────────────── */
.roi-calc__fieldgroup {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.roi-calc__field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.roi-calc__label {
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.roi-calc__label-note {
    font-weight: 400;
    color: var(--color-text-tertiary);
    font-size: var(--fs-xs);
    margin-inline-start: auto;
}

.roi-calc__label-req {
    color: var(--color-danger);
    font-weight: 700;
    margin-inline-start: var(--space-1);
    /* sits right after the label text via the flex gap on .roi-calc__label */
}

/* ── Radio card group ──────────────────────────────────────────────────────── */
.roi-calc__radio-group {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3);
}

@media (min-width: 480px) {
    .roi-calc__radio-group { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
}

/* 3-option group: stay 1-col until 600px to avoid orphan 2+1 layout */
.roi-calc__radio-group--cols-3 {
    grid-template-columns: 1fr;
}

@media (min-width: 600px) {
    .roi-calc__radio-group--cols-3 { grid-template-columns: repeat(3, 1fr); }
}

.roi-calc__radio-option { position: relative; }
.roi-calc__radio-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0; height: 0;
}

.roi-calc__radio-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition:
        border-color var(--dur-base) var(--ease-out),
        background var(--dur-base) var(--ease-out),
        transform var(--dur-fast) var(--ease-out);
}

.roi-calc__radio-card:hover {
    border-color: var(--color-border-strong);
    background: var(--color-overlay);
    transform: translateY(-1px);
}

.roi-calc__radio-option input:checked + .roi-calc__radio-card {
    border-color: var(--color-brand);
    background: rgba(115, 196, 75, 0.06);
}

.roi-calc__radio-option input:focus-visible + .roi-calc__radio-card {
    outline: 2px solid var(--color-brand);
    outline-offset: 3px;
}

.roi-calc__radio-title {
    font-family: var(--font-body);
    font-size: var(--fs-base);
    font-weight: 600;
    color: var(--color-text);
}

.roi-calc__radio-desc {
    font-size: var(--fs-xs);
    color: var(--color-text-tertiary);
    line-height: 1.4;
}

.roi-calc__radio-check {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    width: 20px; height: 20px;
    border-radius: 50%;
    border: 2px solid var(--color-border-strong);
    background: var(--color-surface);
    display: grid;
    place-items: center;
    transition:
        border-color var(--dur-base) var(--ease-out),
        background var(--dur-base) var(--ease-out);
}

.roi-calc__radio-option input:checked ~ .roi-calc__radio-check {
    border-color: var(--color-brand);
    background: var(--color-brand);
}

.roi-calc__radio-check::after {
    content: "";
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--color-text-inverse);
    opacity: 0;
    transition: opacity var(--dur-base) var(--ease-out);
}

.roi-calc__radio-option input:checked ~ .roi-calc__radio-check::after { opacity: 1; }

/* ── Range sliders ─────────────────────────────────────────────────────────── */
.roi-calc__slider-wrap {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.roi-calc__slider-row {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.roi-calc__slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    border-radius: 2px;
    background: var(--color-border-strong);
    cursor: pointer;
    outline: none;
    /* dynamic fill set via JS custom property */
    background: linear-gradient(
        to right,
        var(--color-brand) 0%,
        var(--color-brand) var(--slider-pct, 0%),
        var(--color-border-strong) var(--slider-pct, 0%),
        var(--color-border-strong) 100%
    );
}

.roi-calc__slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px; height: 20px;
    border-radius: 50%;
    background: var(--color-brand);
    border: 3px solid var(--color-elevated);
    box-shadow: 0 0 0 2px var(--color-brand);
    cursor: pointer;
    transition: transform var(--dur-fast) var(--ease-out);
}

.roi-calc__slider::-moz-range-thumb {
    width: 20px; height: 20px;
    border-radius: 50%;
    background: var(--color-brand);
    border: 3px solid var(--color-elevated);
    box-shadow: 0 0 0 2px var(--color-brand);
    cursor: pointer;
}

.roi-calc__slider:hover::-webkit-slider-thumb { transform: scale(1.15); }
.roi-calc__slider:focus-visible { outline: 2px solid var(--color-brand); outline-offset: 4px; }

.roi-calc__slider-val {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: var(--fs-base);
    color: var(--color-brand);
    min-width: 80px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.roi-calc__slider-bounds {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-tertiary);
    letter-spacing: var(--tracking-wide);
}

/* ── Text / email inputs ───────────────────────────────────────────────────── */
.roi-calc__input,
.roi-calc__select {
    width: 100%;
    padding: 12px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: var(--fs-base);
    color: var(--color-text);
    transition:
        border-color var(--dur-base) var(--ease-out),
        box-shadow var(--dur-base) var(--ease-out);
    outline: none;
}

.roi-calc__input::placeholder { color: var(--color-text-tertiary); }

.roi-calc__input:focus,
.roi-calc__select:focus {
    border-color: var(--color-brand);
    box-shadow: 0 0 0 3px rgba(115, 196, 75, 0.15);
}

.roi-calc__input[aria-invalid="true"],
.roi-calc__select[aria-invalid="true"] {
    border-color: var(--color-danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.10);
}

.roi-calc__select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23A0A8B8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    -webkit-appearance: none;
    appearance: none;
    padding-right: 40px;
}

.roi-calc__select option { background: var(--color-elevated); color: var(--color-text); }

/* ── Two-column field layout ───────────────────────────────────────────────── */
.roi-calc__field-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 480px) {
    .roi-calc__field-row { grid-template-columns: 1fr 1fr; }
}

/* ── Fieldset / legend ─────────────────────────────────────────────────────── */
.roi-calc__fieldset {
    border: none;
    margin: 0;
    padding: 0;
}

.roi-calc__legend {
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-3);
    display: block;
}

/* ── Privacy note ──────────────────────────────────────────────────────────── */
.roi-calc__privacy {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-secondary);
    line-height: 1.5;
    padding: var(--space-2) var(--space-3);
    background: transparent;
    border: none;
    border-inline-start: 2px solid var(--color-border);
    border-radius: 0;
}

/* ── Field-level error text ────────────────────────────────────────────────── */
.roi-calc__field-error {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-danger);
    display: none;
}

.roi-calc__field-error[data-visible] { display: block; }

@media (prefers-reduced-motion: reduce) {
    .roi-calc__slider::-webkit-slider-thumb { transition: none; }
    .roi-calc__radio-card { transition: none; }
    .roi-calc__input, .roi-calc__select { transition: none; }
}