/* Question steps: cards, choice chips, toggle tiles, number fields, info popovers. */

.step[hidden] { display: none; }
.step { border: 0; margin: 0; padding: 0; min-width: 0; }
.step-head { margin-bottom: 22px; }
.step-kicker { margin: 0 0 6px; font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.step-title { font-size: clamp(30px, 4vw, 44px); display: flex; align-items: center; gap: 10px; }
.step-title:focus { outline: none; }

.q {
    position: relative;
    margin: 0 0 16px;
    padding: 22px 22px 20px;
    border-radius: var(--radius-m);
    background: var(--surface);
    box-shadow: var(--shadow-1);
    transition: box-shadow var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out);
}
.q:focus-within { box-shadow: var(--shadow-1), 0 0 0 2px color-mix(in oklab, var(--accent) 45%, transparent); }
.q[data-answered="true"]::before {
    content: "";
    position: absolute;
    left: 0;
    top: 22px;
    bottom: 22px;
    width: 4px;
    border-radius: 0 4px 4px 0;
    background: var(--accent);
    animation: grow-y var(--dur-med) var(--ease-spring);
}
.q-title { display: flex; gap: 10px; align-items: flex-start; margin: 0 0 14px; font-size: 18px; font-weight: 650; line-height: 1.35; }
.q-num {
    flex: none;
    display: grid;
    place-items: center;
    min-width: 28px;
    height: 28px;
    padding: 0 6px;
    border-radius: 99px;
    background: var(--surface-2);
    font-size: 13px;
    font-weight: 700;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}
.q-text { flex: 1; }
.q-note { margin: -6px 0 14px; font-size: 14px; color: var(--text-muted); }
.fields + .q-note, .tiles + .q-note, .radio + .q-note { margin: 16px 0 12px; }

/* ---------- Choice chips (radio) ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 42px;
    padding: 8px 16px;
    border-radius: 99px;
    background: var(--surface-2);
    font-size: 15px;
    line-height: 1.25;
    cursor: pointer;
    user-select: none;
    transition: background-color var(--dur-fast) var(--ease-out), color var(--dur-fast), transform var(--dur-med) var(--ease-spring), box-shadow var(--dur-fast);
}
.chip:hover { background: color-mix(in oklab, var(--surface-2), var(--accent) 12%); }
.chip:active { transform: scale(.95); }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip:has(input:focus-visible) { outline: 3px solid var(--focus); outline-offset: 2px; }
.chip:has(input:checked) {
    background: var(--accent);
    color: var(--accent-ink);
    box-shadow: 0 6px 16px color-mix(in oklab, var(--accent) 30%, transparent);
    animation: pop var(--dur-med) var(--ease-spring);
}
.chip-check {
    display: grid;
    place-items: center;
    width: 18px;
    height: 18px;
    margin-left: -4px;
    border-radius: 50%;
    box-shadow: inset 0 0 0 1.5px currentColor;
    opacity: .5;
}
.chip:has(input:checked) .chip-check { opacity: 1; background: var(--accent-ink); box-shadow: none; }
.chip:has(input:checked) .chip-check::after {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: pop var(--dur-med) var(--ease-spring);
}
.chips-stack { flex-direction: column; align-items: stretch; }
.chips-stack .chip { border-radius: var(--radius-s); justify-content: flex-start; }

.chip-other { padding-right: 8px; }
.chip-other .field-input { width: 110px; min-height: 32px; background: var(--surface); color: var(--text); }
.chip-other-suffix { font-size: 13px; opacity: .85; }

/* ---------- Toggle tiles (checkbox) ---------- */
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 8px; }
.tile {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 52px;
    padding: 10px 14px;
    border-radius: var(--radius-s);
    background: var(--surface-2);
    font-size: 15px;
    line-height: 1.3;
    cursor: pointer;
    transition: background-color var(--dur-fast), transform var(--dur-med) var(--ease-spring);
}
.tile:active { transform: scale(.97); }
.tile input { position: absolute; opacity: 0; pointer-events: none; }
.tile:has(input:focus-visible) { outline: 3px solid var(--focus); outline-offset: 2px; }
.tile-switch {
    flex: none;
    position: relative;
    width: 38px;
    height: 22px;
    border-radius: 99px;
    background: color-mix(in oklab, var(--text) 22%, transparent);
    transition: background-color var(--dur-fast);
}
.tile-switch::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 3px rgb(0 0 0 / .25);
    transition: transform var(--dur-med) var(--ease-spring);
}
.tile:has(input:checked) { background: color-mix(in oklab, var(--surface-2), var(--accent) 16%); }
.tile:has(input:checked) .tile-switch { background: var(--accent); }
.tile:has(input:checked) .tile-switch::after { transform: translateX(16px); }

/* ---------- Number fields ---------- */
.fields { display: grid; gap: 12px; }
.field { display: grid; grid-template-columns: minmax(120px, 200px) auto; gap: 6px 14px; align-items: center; }
.field-label { font-size: 15px; font-weight: 500; }
.field-control { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.field-input {
    width: 140px;
    min-height: 44px;
    padding: 0 14px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-s);
    background: var(--bg);
    color: var(--text);
    font: 600 17px/1 var(--font-sans);
    font-variant-numeric: tabular-nums;
    transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.field-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 22%, transparent); }
.field-input[aria-invalid="true"] { border-color: var(--zone-high); animation: shake 360ms var(--ease-out); }
.field-suffix { font-size: 14px; color: var(--text-muted); }
.field-error { grid-column: 1 / -1; margin: 0; font-size: 13px; color: var(--zone-high); }
.field-error:empty { display: none; }

.units { display: inline-flex; padding: 3px; border-radius: 99px; background: var(--surface-2); position: relative; }
.units label { position: relative; z-index: 1; padding: 6px 12px; font-size: 13px; font-weight: 600; border-radius: 99px; cursor: pointer; transition: color var(--dur-fast); }
.units input { position: absolute; opacity: 0; pointer-events: none; }
.units label:has(input:checked) { color: var(--accent-ink); background: var(--accent); }
.units label:has(input:focus-visible) { outline: 3px solid var(--focus); }

/* ---------- Info button + popover ---------- */
.info-btn {
    flex: none;
    display: inline-grid;
    place-items: center;
    width: 26px;
    height: 26px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: color-mix(in oklab, var(--accent) 14%, transparent);
    color: var(--accent);
    font: italic 700 14px/1 var(--font-display);
    cursor: pointer;
    vertical-align: middle;
    transition: transform var(--dur-fast) var(--ease-out), background-color var(--dur-fast);
}
.info-btn:hover { transform: scale(1.12); background: color-mix(in oklab, var(--accent) 24%, transparent); }

.popover {
    width: min(560px, calc(100vw - 32px));
    max-height: min(70vh, 640px);
    overflow: auto;
    padding: 22px 22px 18px;
    border: 0;
    border-radius: var(--radius-l);
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow-2);
    font-size: 15px;
    line-height: 1.55;
    opacity: 0;
    transform: translateY(16px) scale(.97);
    transition: opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-spring),
                overlay var(--dur-med) allow-discrete, display var(--dur-med) allow-discrete;
}
.popover:popover-open { opacity: 1; transform: none; }
@starting-style { .popover:popover-open { opacity: 0; transform: translateY(16px) scale(.97); } }
.popover::backdrop { background: rgb(8 24 30 / .35); backdrop-filter: blur(2px); }
.popover table { border-collapse: collapse; width: 100%; margin: 10px 0; font-size: 13px; }
.popover td, .popover th { border: 1px solid var(--line) !important; padding: 5px 7px; text-align: left; vertical-align: top; }
.popover-close { display: flex; margin: 12px 0 0 auto; }

@keyframes pop { 0% { transform: scale(.9); } 100% { transform: scale(1); } }
@keyframes grow-y { from { transform: scaleY(0); } }
@keyframes shake { 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }

@media (max-width: 560px) {
    .q { padding: 18px 16px 16px; }
    .field { grid-template-columns: 1fr; }
    .tiles { grid-template-columns: 1fr; }
    .popover { margin: auto auto 12px; }
}