/* The product's own views: the optimizer on one page (country, decision, results - laid out as the reference
 * prototype lays them out), a run's results, the run history, the comparison and the case-study analyses.
 * Tokens only; every flex/grid rule has its [hidden] twin. */

/* --- Icons (fragments/icons.html) --------------------------------------------------------------- */
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon {
    width: 1.125rem;
    height: 1.125rem;
    flex: none;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    vertical-align: middle;
}
.icon--spin { animation: icon-spin 0.9s linear infinite; }
@keyframes icon-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
    .icon--spin { animation: none; }
}

/* --- Small type the page shares ---------------------------------------------------------------------- */
.kicker {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-1);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-blue-dark);
}
.kicker[hidden] { display: none; }
.kicker--plain { color: var(--color-text-muted); }
.chip--year, .chip--context, .chip--summary, .chip--stale {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    white-space: nowrap;
    background: var(--action-tint);
    border-color: var(--action);
    color: var(--c-navy);
}
.chip--stale { background: var(--color-warning-bg); border-color: var(--c-yellow); color: var(--color-warning); }
.tag {
    padding: 2px 8px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 0.5625rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    white-space: nowrap;
}
.tag--max { background: var(--action-tint-strong); color: var(--c-navy); }
.tag--min { background: var(--surface-cool); border-color: var(--color-border); color: var(--color-text-muted); }

/* --- The three stages ---------------------------------------------------------------------------------- */
/* The optimizer and a run's results are dashboards; the sub-header above them widens with them. */
.site-main:has(.optimizer) .container--page, .site-main:has(.results) .container--page {
    max-width: var(--container-dashboard);
}
.optimizer { padding-bottom: var(--sp-6); }
.stage {
    display: grid;
    grid-template-columns: 7rem minmax(0, 1fr);
    gap: var(--sp-4);
    margin-bottom: var(--sp-4);
    padding: var(--sp-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.stage[hidden] { display: none; }
.stage:focus { outline: none; }
.stage__rail {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-2);
    padding-right: var(--sp-3);
    border-right: 1px solid var(--color-border);
}
.stage__rail[hidden] { display: none; }
.stage__number { font-size: 2.25rem; font-weight: 700; line-height: 1; color: var(--c-green-ink); }
.stage__icon {
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-sm);
    background: var(--action);
    color: var(--c-navy);
}
.stage__icon[hidden] { display: none; }
.stage__label {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-blue-dark);
}
.stage__title { margin: 0; font-size: var(--fs-300); font-weight: 500; line-height: 1.3; color: var(--c-navy); }
.stage__content { min-width: 0; }
.stage__content--country {
    display: grid;
    grid-template-columns: 15rem minmax(0, 1fr);
    gap: var(--sp-3);
    align-items: start;
}
.stage__content--country[hidden] { display: none; }

/* --- 01: the country and its current system --------------------------------------------------------- */
.country-picker { display: flex; flex-direction: column; gap: var(--sp-3); min-width: 0; }
.country-picker[hidden] { display: none; }
.country-list { display: flex; flex-direction: column; gap: var(--sp-1); min-width: 0; margin: 0; padding: 0; border: 0; }
.country-list[hidden] { display: none; }
.country-option {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding: var(--sp-3);
    border-radius: var(--radius-sm);
    color: var(--c-navy);
    font-weight: 500;
    cursor: pointer;
}
.country-option[hidden] { display: none; }
.country-option:hover { background: var(--color-bg); }
.country-option:has(:checked) { background: var(--action-tint); }
.country-option:has(:disabled) { color: var(--color-text-muted); cursor: not-allowed; }
.country-option:has(:focus-visible) { outline: 3px solid var(--c-blue); outline-offset: 1px; }
.country-option__note { margin-left: auto; font-size: var(--fs-100); color: var(--color-text-muted); }

/* A choice drawn as a card: the native radio or checkbox stays in the page for the keyboard and the screen
 * reader, the mark beside it is what the eye reads. */
.option__input { position: absolute; width: 1px; height: 1px; margin: 0; opacity: 0; pointer-events: none; }
.option__mark {
    display: grid;
    place-items: center;
    flex: none;
    width: 1.25rem;
    height: 1.25rem;
    border: 1.5px solid var(--color-text-muted);
    border-radius: 50%;
    background: var(--color-surface);
    color: transparent;
}
.option__mark[hidden] { display: none; }
.option__mark--square { border-radius: 4px; }
.option__mark .icon { width: 0.875rem; height: 0.875rem; stroke-width: 3; }
.option__input:checked ~ .option__mark { background: var(--action); border-color: var(--action); color: var(--c-navy); }

.rate-card { padding: var(--sp-3); border: 1px solid var(--color-border); border-radius: var(--radius); }
.rate-card .field { margin-bottom: 0; }
.rate-card .field-note { margin: var(--sp-2) 0 0; font-size: var(--fs-100); color: var(--color-text-muted); }
.rate-card .form__error { margin: var(--sp-2) 0 0; }
.number-input {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    max-width: 13rem;
    padding: 0 var(--sp-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
}
.number-input[hidden] { display: none; }
.number-input:focus-within { outline: 2px solid var(--c-blue); outline-offset: 1px; }
.number-input:has(.is-invalid) { border-color: var(--color-danger); }
.number-input .input { min-width: 0; padding: var(--sp-2) 0; border: 0; font-size: var(--fs-400); color: var(--c-navy); }
.number-input .input:focus { outline: none; }
.number-input b { font-size: var(--fs-200); font-weight: 600; color: var(--color-text-muted); white-space: nowrap; }
.number-input--small { max-width: 5.5rem; padding: 0 var(--sp-2); }
.number-input--small .input { padding: var(--sp-1) 0; font-size: var(--fs-200); }

.country-main { min-width: 0; }
.country-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-4);
    min-height: 12rem;
    padding: var(--sp-5);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius);
}
.country-empty[hidden] { display: none; }
.country-empty__icon {
    display: grid;
    place-items: center;
    flex: none;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius);
    background: var(--action-tint);
    color: var(--c-navy);
}
.country-empty__icon[hidden] { display: none; }
.country-empty__icon .icon { width: 1.75rem; height: 1.75rem; }
.country-empty__title { margin: 0 0 var(--sp-1); font-size: var(--fs-500); font-weight: 500; color: var(--c-navy); }
.country-empty__text { margin: 0; color: var(--color-text-muted); }

/* --- Panels, and the figures inside them ------------------------------------------------------------------ */
.baseline, .panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}
/* The figure grids draw their dividers as the gaps between cells, so these two clip the corners. */
.baseline, .comparison { overflow: hidden; }
.panel { margin-bottom: var(--sp-4); }
.panel__head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--sp-3);
    padding: var(--sp-3) var(--sp-4);
    border-bottom: 1px solid var(--color-border);
}
.panel__head[hidden] { display: none; }
.panel__title { margin: 0; font-size: var(--fs-400); font-weight: 500; color: var(--c-navy); }
.panel__tools { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: var(--sp-2); }
.panel__tools[hidden] { display: none; }

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    background: var(--color-border);
}
.metric-grid[hidden] { display: none; }
.metric-grid--headline { border-bottom: 1px solid var(--color-border); }
.metric-grid--results { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.metric {
    display: flex;
    flex-direction: column;
    gap: var(--sp-1);
    min-width: 0;
    padding: var(--sp-3) var(--sp-4);
    background: var(--color-surface);
}
.metric[hidden] { display: none; }
.metric__label {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.metric__label[hidden] { display: none; }
.metric__label .info-tip { margin-left: var(--sp-1); }
.metric__value {
    font-size: clamp(1.25rem, 1.7vw, 1.75rem);
    font-weight: 500;
    line-height: 1.15;
    color: var(--c-navy);
    font-variant-numeric: tabular-nums;
}
.metric--good .metric__value { color: var(--c-green-ink); }
.metric--bad .metric__value { color: var(--chart-flow-landfill); }
.metric__values { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0 var(--sp-2); }
.metric__values[hidden] { display: none; }
.metric__was { font-size: 0.9375rem; color: var(--color-text-muted); }
.metric__agg {
    display: flex;
    align-items: baseline;
    gap: var(--sp-1);
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.metric__agg[hidden] { display: none; }
.metric__agg b { font-family: var(--font-mono); font-size: 0.75rem; color: var(--c-navy); }
.metric__note { font-size: 0.6875rem; line-height: 1.35; }
.metric__note.is-better { color: var(--delta-better); }
.metric__note.is-worse { color: var(--delta-worse); }

/* A figure's ten years (components/trend.js). */
.trend { margin-top: auto; padding-top: var(--sp-2); }
.trend__plot { position: relative; }
.trend__svg { display: block; width: 100%; height: auto; overflow: visible; }
.trend__axis { stroke: var(--color-border); stroke-width: 1; }
.trend__primary { fill: none; stroke: var(--chart-trend); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.trend__comparison { fill: none; stroke: var(--color-text-muted); stroke-width: 1.5; stroke-dasharray: 5 5; }
.trend__end { fill: var(--color-surface); stroke: var(--chart-trend); stroke-width: 2.5; }
.trend__hit { fill: transparent; cursor: crosshair; }
.trend__tip {
    position: absolute;
    left: var(--x);
    top: var(--y);
    z-index: 2;
    display: flex;
    flex-direction: column;
    padding: var(--sp-1) var(--sp-2);
    border-radius: var(--radius-sm);
    background: var(--c-navy);
    color: var(--on-dark);
    font-size: 0.6875rem;
    white-space: nowrap;
    transform: translate(-50%, calc(-100% - 8px));
    pointer-events: none;
}
.trend__tip[hidden] { display: none; }
.trend__caption {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0 var(--sp-2);
    font-family: var(--font-mono);
    font-size: 0.625rem;
    color: var(--color-text-muted);
}
.trend__caption[hidden] { display: none; }
/* A year and its value stay on one line; the second year goes under the first when both do not fit. */
.trend__caption span { white-space: nowrap; }

/* --- 02: the decision --------------------------------------------------------------------------------- */
.notice {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    margin-bottom: var(--sp-3);
    padding: var(--sp-3) var(--sp-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text-muted);
    font-size: var(--fs-200);
}
.notice[hidden] { display: none; }
.notice strong { display: block; color: var(--c-navy); }

.question-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-3);
    align-items: start;
}
.question-grid[hidden] { display: none; }
.question-grid.is-locked { opacity: 0.55; }
.question-card {
    position: relative;
    min-width: 0;
    margin: 0;
    padding: var(--sp-3) var(--sp-3) var(--sp-4) var(--sp-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--surface-cool);
}
.question-card.is-active { background: var(--color-surface); box-shadow: var(--shadow-sm); }
.question-card.is-active::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 4px;
    border-radius: var(--radius) 0 0 var(--radius);
    background: var(--action);
}
.card-step {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--sp-2);
    margin-bottom: var(--sp-2);
}
.card-step[hidden] { display: none; }
.card-step > span {
    display: grid;
    place-items: center;
    width: 1.5rem;
    height: 1.5rem;
    border: 1.5px solid var(--action);
    border-radius: 50%;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--c-green-ink);
}
.card-step > span[hidden] { display: none; }
.card-step > i { height: 1px; background: var(--color-border); }
.card-step small {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.card-title h3 { margin: 0; font-size: var(--fs-400); font-weight: 500; color: var(--c-navy); }
.card-title p { margin: var(--sp-1) 0 var(--sp-3); font-size: var(--fs-100); color: var(--color-text-muted); }
.locked {
    display: grid;
    justify-items: center;
    gap: var(--sp-2);
    padding: var(--sp-7) var(--sp-3);
    text-align: center;
    color: var(--color-text-muted);
}
.locked[hidden] { display: none; }
.locked__icon {
    display: grid;
    place-items: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 1.5px dashed var(--color-text-muted);
    border-radius: 50%;
}
.locked__icon[hidden] { display: none; }
.locked h3 { margin: 0; font-size: var(--fs-400); font-weight: 500; }
.locked p { margin: 0; font-size: var(--fs-100); }

.option-list { display: grid; gap: var(--sp-2); }
.option-list[hidden] { display: none; }
.option {
    position: relative;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--sp-2) var(--sp-3);
    padding: var(--sp-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    cursor: pointer;
}
.option[hidden] { display: none; }
.option:hover { border-color: var(--c-navy); }
.option:has(:checked) { border-color: var(--action); background: var(--action-tint); box-shadow: inset 4px 0 0 var(--action); }
.option:has(:focus-visible) { outline: 3px solid var(--c-blue); outline-offset: 2px; }
.option:has(:disabled) { cursor: not-allowed; }
.option:has(:disabled):hover { border-color: var(--color-border); }
.option--plain, .option--question, .option--guardrail { grid-template-columns: auto minmax(0, 1fr); align-items: start; }
.option--plain[hidden], .option--question[hidden], .option--guardrail[hidden] { display: none; }
.option__icon {
    display: grid;
    place-items: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    background: var(--info-bg);
    color: var(--c-navy);
}
.option__icon[hidden] { display: none; }
.option:has(:checked) .option__icon { background: var(--action); }
.option__copy { display: grid; gap: 2px; min-width: 0; }
.option__copy[hidden] { display: none; }
.option__title {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--sp-1) var(--sp-2);
    font-size: var(--fs-200);
    font-weight: 600;
    color: var(--c-navy);
}
.option__title[hidden] { display: none; }
.option__text { font-size: var(--fs-100); color: var(--color-text-muted); }
.option__eyebrow {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-blue-dark);
}
.divider {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: var(--sp-2);
    margin: var(--sp-3) 0;
    font-family: var(--font-mono);
    font-size: 0.625rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.divider[hidden] { display: none; }
.divider::before, .divider::after { content: ''; height: 1px; background: var(--color-border); }
.guardrail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-2); }
.guardrail-grid[hidden] { display: none; }

.bounds { display: grid; gap: var(--sp-4); }
.bounds[hidden] { display: none; }
.bound { min-width: 0; }
.bound .field__label { margin-bottom: var(--sp-2); }
.bound .field-note { margin: var(--sp-1) 0 0; font-size: var(--fs-100); color: var(--color-text-muted); }
.bound .number-input { max-width: none; }
.material-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-1); }
.material-list[hidden] { display: none; }
.material-list.is-per-material { grid-template-columns: 1fr; }
.material-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-2);
    min-width: 0;
    padding: var(--sp-1) var(--sp-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}
.material-row[hidden] { display: none; }
.material-row:has([data-role="material-input"]:checked) { border-color: var(--action); background: var(--action-tint); }
.material-row__toggle {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    min-width: 0;
    padding: var(--sp-1) 0;
    font-size: var(--fs-100);
    font-weight: 500;
    color: var(--c-navy);
    cursor: pointer;
}
.material-row__toggle[hidden] { display: none; }
.material-row__toggle:has(:focus-visible) { outline: 3px solid var(--c-blue); outline-offset: 2px; }

.segmented { display: inline-flex; overflow: hidden; border: 1px solid var(--color-border); border-radius: 999px; }
.segmented[hidden] { display: none; }
.segmented--wide { display: flex; }
.segmented--wide[hidden] { display: none; }
.segmented__option {
    position: relative;
    flex: 1 1 auto;
    margin: 0;
    padding: var(--sp-2) var(--sp-3);
    border: 0;
    background: transparent;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-align: center;
    white-space: nowrap;
    color: var(--color-text-muted);
    cursor: pointer;
}
.segmented__option:has(:checked), .segmented__option.is-active { background: var(--action); color: var(--c-navy); }
.segmented__option:has(:focus-visible), .segmented__option:focus-visible { outline: 3px solid var(--c-blue); outline-offset: -3px; }
.segmented__input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

.budget-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-2); margin-top: var(--sp-2); }
.budget-grid[hidden] { display: none; }
.budget-grid--single { grid-template-columns: minmax(0, 17rem); }
.budget-year {
    display: flex;
    align-items: center;
    gap: var(--sp-1);
    padding: 0 var(--sp-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    text-transform: uppercase;
    white-space: nowrap;
    color: var(--color-text-muted);
}
.budget-year[hidden] { display: none; }
.budget-year:focus-within { outline: 2px solid var(--c-blue); outline-offset: 1px; }
.budget-year .input {
    min-width: 0;
    padding: var(--sp-2) var(--sp-1);
    border: 0;
    text-align: right;
    font-family: var(--font-sans);
    font-size: var(--fs-200);
    font-weight: 600;
    color: var(--c-navy);
}
.budget-year .input:focus { outline: none; }
.budget-year small { text-transform: none; }
.budget-year .input.is-invalid { color: var(--color-danger); }
.budget-total {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--sp-2);
    margin-top: var(--sp-2);
    padding: var(--sp-2) var(--sp-3);
    border: 1px solid var(--action);
    border-radius: var(--radius-sm);
    background: var(--action-tint);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    text-transform: uppercase;
}
.budget-total[hidden] { display: none; }
.budget-total strong { font-family: var(--font-sans); font-size: var(--fs-400); font-weight: 600; text-transform: none; color: var(--c-navy); }
.guard-value + .guard-value { margin-top: var(--sp-3); }

.run-bar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--sp-3);
    margin-top: var(--sp-3);
    padding: var(--sp-2) var(--sp-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--surface-cool);
    color: var(--color-text-muted);
}
.run-bar[hidden] { display: none; }
.run-bar.is-ready { border-color: var(--action); background: var(--action-tint); color: var(--c-navy); }
.run-bar__icon {
    display: grid;
    place-items: center;
    width: 2.25rem;
    height: 2.25rem;
    border: 1.5px solid currentColor;
    border-radius: 50%;
}
.run-bar__icon[hidden] { display: none; }
.run-bar__summary { display: grid; min-width: 0; }
.run-bar__summary[hidden] { display: none; }
.run-bar__summary small { font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.08em; text-transform: uppercase; }
.run-bar__summary strong { font-weight: 600; color: var(--c-navy); }
.run-bar__label { display: inline-flex; align-items: center; gap: var(--sp-2); }
.run-bar__label[hidden] { display: none; }
.decision-error { margin-top: var(--sp-3); }

/* --- 03: the results (fragments/results-view.html) ------------------------------------------------------ */
.results__head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--sp-3);
    margin-bottom: var(--sp-3);
}
.results__head[hidden] { display: none; }
.results__heading { max-width: 46rem; }
.results__title { margin: var(--sp-1) 0; font-size: var(--fs-600); font-weight: 500; color: var(--c-navy); }
.results__lede { margin: 0; color: var(--color-text-muted); }
.results__context { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: var(--sp-2); }
.results__context[hidden] { display: none; }
.results__actions { margin-bottom: var(--sp-4); }
.results__subtitle { margin: var(--sp-3) 0 var(--sp-2); font-size: var(--fs-300); }
.results__notes .findings { margin: var(--sp-2) 0 0; padding: 0; list-style: none; font-size: var(--fs-200); }
.results__notes .finding { margin-bottom: var(--sp-1); padding: var(--sp-1) var(--sp-2); border-radius: var(--radius-sm); background: var(--color-warning-bg); }

.comparison__head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--sp-3);
    padding: var(--sp-3) var(--sp-4);
    border-bottom: 1px solid var(--color-border);
    font-size: var(--fs-400);
}
.comparison__head[hidden] { display: none; }
.comparison__head s { color: var(--color-text-muted); }
.comparison__head strong { font-weight: 500; color: var(--c-green-ink); }

/* The question's material scope beside the whole system (the prototype's "constrained material set"). */
.scoped {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-3) var(--sp-5);
    padding: var(--sp-3) var(--sp-4);
}
.scoped[hidden] { display: none; }
.scoped__head { display: flex; flex-direction: column; gap: var(--sp-1); min-width: 0; }
.scoped__head[hidden] { display: none; }
.scoped__head strong { font-weight: 600; color: var(--c-navy); }
.scoped__stats { display: flex; flex-wrap: wrap; gap: var(--sp-2) var(--sp-5); }
.scoped__stats[hidden] { display: none; }
.scoped__stat { display: flex; flex-direction: column; gap: 2px; }
.scoped__stat[hidden] { display: none; }
.scoped__stat b { font-size: var(--fs-400); font-weight: 600; color: var(--c-navy); }
.scoped__stat small {
    font-family: var(--font-mono);
    font-size: 0.5625rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.finance { padding: var(--sp-4); }
.finance__stats { display: flex; flex-wrap: wrap; gap: var(--sp-4) var(--sp-7); }
.finance__stats[hidden] { display: none; }
.finance__stat { display: grid; gap: 2px; }
.finance__stat[hidden] { display: none; }
.finance__stat strong { font-size: var(--fs-500); font-weight: 500; color: var(--c-navy); }
.finance__stat small { font-size: var(--fs-100); color: var(--color-text-muted); }
.icon--capex { color: var(--chart-capex); }
.icon--opex { color: var(--chart-opex); }
.finance__sub { margin: var(--sp-3) 0 0; font-size: var(--fs-200); color: var(--color-text-muted); }
.phasing {
    position: relative;
    display: grid;
    grid-template-columns: repeat(10, minmax(0, 1fr));
    align-items: end;
    gap: var(--sp-2);
    padding-top: var(--sp-4);
}
.phasing[hidden] { display: none; }
.phasing__bar { display: flex; flex-direction: column; align-items: center; gap: var(--sp-1); outline: none; cursor: crosshair; }
.phasing__bar[hidden] { display: none; }
.phasing__track {
    position: relative;
    width: 100%;
    height: 3.5rem;
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: var(--surface-cool);
}
.phasing__bar:hover .phasing__track, .phasing__bar:focus-visible .phasing__track {
    border-color: var(--action);
    box-shadow: inset 0 0 0 1px var(--action);
}
.phasing__capex { position: absolute; bottom: 0; left: 0; width: 100%; height: var(--capex, 0%); background: var(--chart-capex); }
.phasing__bar.is-over .phasing__capex { background: var(--chart-flow-landfill); }
.phasing__budget { position: absolute; bottom: var(--budget, 0%); left: 0; width: 100%; height: 2px; background: var(--c-navy); opacity: 0.65; }
.phasing__bar small { font-family: var(--font-mono); font-size: 0.625rem; color: var(--color-text-muted); }
.phasing__tip {
    position: absolute;
    bottom: calc(100% - var(--sp-3));
    left: var(--x);
    z-index: 3;
    display: grid;
    gap: 2px;
    min-width: 11rem;
    padding: var(--sp-2) var(--sp-3);
    border-radius: var(--radius-sm);
    background: var(--c-navy);
    color: var(--on-dark);
    font-size: var(--fs-100);
    transform: translateX(-50%);
    pointer-events: none;
}
.phasing__tip[hidden] { display: none; }
.phasing__tip.is-start { transform: none; }
.phasing__tip.is-end { transform: translateX(-100%); }
.phasing__tip-year { font-family: var(--font-mono); font-size: 0.625rem; text-transform: uppercase; color: var(--on-dark-muted); }
.phasing__tip-row { display: flex; align-items: center; gap: var(--sp-1); }
.phasing__tip-row[hidden] { display: none; }
.phasing__tip-row b { margin-left: auto; padding-left: var(--sp-3); }
.phasing__tip-row--total { padding-top: 2px; border-top: 1px solid var(--on-dark-line); }
.phasing__tip-row.is-over b { color: var(--delta-worse-on-dark); }
.swatch { display: inline-block; width: 0.625rem; height: 0.625rem; border-radius: 2px; vertical-align: middle; }
.swatch--capex { background: var(--chart-capex); }
.swatch--opex { background: var(--chart-opex); }
.swatch--budget { width: 1rem; height: 2px; border-radius: 0; background: var(--c-navy); }
.finance__foot {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--sp-2);
    margin-top: var(--sp-3);
    padding-top: var(--sp-2);
    border-top: 1px solid var(--color-border);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.finance__foot[hidden] { display: none; }
.phasing__legend { display: inline-flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2); }
.phasing__legend[hidden] { display: none; }
.finance__flag { font-family: var(--font-sans); text-transform: none; }
.finance__flag.is-over { color: var(--delta-worse); }

.investment { padding-bottom: var(--sp-4); }
.chip-row { display: flex; flex-wrap: wrap; gap: var(--sp-1); }
.chip-row[hidden] { display: none; }
.investment-list { display: grid; gap: var(--sp-2); margin: 0; padding: var(--sp-3) var(--sp-4) 0; list-style: none; }
.investment-list[hidden] { display: none; }
.investment-row {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) repeat(3, auto);
    align-items: baseline;
    gap: var(--sp-2) var(--sp-4);
    padding: var(--sp-2) var(--sp-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}
.investment-row[hidden] { display: none; }
.investment-row__name strong { color: var(--c-navy); }
.investment-row__name small { font-size: var(--fs-100); color: var(--color-text-muted); }
.investment-row__stat { text-align: right; white-space: nowrap; }
.investment-row__stat b { color: var(--c-navy); }
.investment-row__stat small, .investment-card__facts dt {
    font-family: var(--font-mono);
    font-size: 0.5625rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.action-badge {
    justify-self: start;
    padding: 3px 8px;
    border-radius: 999px;
    background: var(--c-blue);
    font-family: var(--font-mono);
    font-size: 0.5625rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--c-navy);
}
.is-build .action-badge { background: var(--action); }
.investment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 17rem), 1fr));
    gap: var(--sp-3);
    padding: var(--sp-3) var(--sp-4) 0;
}
.investment-grid[hidden] { display: none; }
.investment-card { padding: var(--sp-3); border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.investment-card__head { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2); color: var(--c-navy); }
.investment-card__head[hidden] { display: none; }
.investment-card__text { margin: var(--sp-2) 0; font-size: var(--fs-100); color: var(--color-text-muted); }
.investment-card__facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-2); margin: 0; }
.investment-card__facts[hidden] { display: none; }
.investment-card__facts div { padding-left: var(--sp-2); border-left: 2px solid var(--c-blue); }
.is-build .investment-card__facts div { border-left-color: var(--action); }
.investment-card__facts dd { margin: 0; font-weight: 600; color: var(--c-navy); }
.investment__note, .investment__empty { margin: var(--sp-3) var(--sp-4) 0; font-size: var(--fs-100); color: var(--color-text-muted); }

/* The flow diagrams are as wide as their labels need; on a phone they scroll inside their panel, never the page. */
.flow { padding: var(--sp-2) var(--sp-4) 0; overflow-x: auto; }
.flow__columns {
    display: grid;
    min-width: 40rem;
    font-family: var(--font-mono);
    font-size: 0.625rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.flow__columns[hidden] { display: none; }
.flow__columns--two { grid-template-columns: 1fr 1fr; }
.flow__columns--two span:last-child { text-align: right; }
.flow__columns--four { grid-template-columns: repeat(4, 1fr); }
.flow__columns--four span:nth-child(3), .flow__columns--four span:nth-child(4) { text-align: right; }
.flow__holder { min-width: 40rem; }
.flow__note { margin: var(--sp-2) var(--sp-4) var(--sp-4); font-size: var(--fs-100); color: var(--color-text-muted); }
/* Only where the diagram is wider than the screen. */
.flow__hint { display: none; margin: var(--sp-2) var(--sp-4) 0; font-size: var(--fs-100); color: var(--color-text-muted); }
.sankey__svg { display: block; width: 100%; height: auto; }
.sankey__link { fill: none; stroke-opacity: 0.34; }
.sankey__link:hover { stroke-opacity: 0.6; }
.sankey__node { stroke: var(--c-navy); stroke-width: 0.6; }
.sankey__label { font-size: 12px; fill: var(--c-navy); }

.explorer__key { display: inline-flex; align-items: center; gap: var(--sp-2); font-size: var(--fs-100); color: var(--color-text-muted); }
.explorer__key[hidden] { display: none; }
.explorer__layout { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); }
.explorer__layout[hidden] { display: none; }
.explorer__radar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--sp-3);
    padding: var(--sp-4);
    border-right: 1px solid var(--color-border);
}
.explorer__radar[hidden] { display: none; }
.selected-badge {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-3);
    width: min(100%, 30rem);
    padding: var(--sp-2) var(--sp-3);
    border: 2px solid var(--series-color);
    border-radius: var(--radius-sm);
    background: var(--c-navy);
    color: var(--on-dark);
}
.selected-badge[hidden] { display: none; }
.selected-badge span { font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--on-dark-muted); }
.radar { width: min(100%, 26rem); }
.radar__svg { display: block; width: 100%; height: auto; overflow: visible; }
.radar__ring { fill: none; stroke: var(--color-border); }
.radar__axis { stroke: var(--color-border); }
.radar__label { font-size: 10px; fill: var(--c-navy); }
.radar__shape { fill: transparent; stroke: var(--series-color); stroke-width: 1.6; stroke-linejoin: round; opacity: 0.45; }
.radar__series circle { fill: var(--color-surface); stroke: var(--series-color); stroke-width: 1.6; opacity: 0.5; }
.radar__series.is-selected .radar__shape { fill: var(--series-color); fill-opacity: 0.25; stroke-width: 3.5; opacity: 1; }
.radar__halo { fill: none; stroke: var(--c-navy); stroke-width: 7; stroke-linejoin: round; opacity: 0.9; }
.radar__series.is-selected circle { fill: var(--series-color); stroke: var(--c-navy); stroke-width: 2; opacity: 1; }
.radar-legend {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-1) var(--sp-4);
    width: 100%;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: var(--fs-100);
}
.radar-legend[hidden] { display: none; }
.radar-legend__item { display: flex; align-items: center; gap: var(--sp-2); color: var(--color-text-muted); }
.radar-legend__item[hidden] { display: none; }
.radar-legend__item.is-active { font-weight: 600; color: var(--c-navy); }
.radar-legend__swatch { flex: none; width: 0.625rem; height: 0.625rem; border-radius: 50%; background: var(--series-color); }
.radar-legend__selected, .alternative__selected {
    padding: 2px 7px;
    border-radius: 999px;
    background: var(--action);
    font-family: var(--font-mono);
    font-size: 0.5625rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-navy);
}
.readout { display: grid; gap: var(--sp-1); width: 100%; }
.readout[hidden] { display: none; }
.readout__title { font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-muted); }
.readout__row {
    display: grid;
    grid-template-columns: 8rem minmax(0, 1fr) 2.75rem;
    align-items: center;
    gap: var(--sp-2);
    font-size: var(--fs-100);
}
.readout__row[hidden] { display: none; }
.readout__row em { font-style: normal; }
.readout__row b { text-align: right; }
.score-bar { display: block; height: 6px; overflow: hidden; border-radius: 999px; background: var(--color-border); }
.score-bar > i { display: block; width: var(--w, 0%); height: 100%; border-radius: 999px; background: var(--series-color, var(--action)); }
.explorer__foot { margin: 0; font-size: var(--fs-100); text-align: center; }
.explorer__list { min-width: 0; }
.explorer__intro { padding: var(--sp-3) var(--sp-4); border-bottom: 1px solid var(--color-border); background: var(--surface-cool); }
.explorer__intro p { margin: var(--sp-1) 0 0; font-size: var(--fs-100); color: var(--color-text-muted); }
.explorer__none { margin: var(--sp-3) var(--sp-4); }
.alternatives { display: grid; }
.alternatives[hidden] { display: none; }
.alternative {
    display: grid;
    grid-template-columns: 2rem minmax(0, 1fr) 7rem auto;
    align-items: start;
    gap: var(--sp-1) var(--sp-3);
    width: 100%;
    padding: var(--sp-3) var(--sp-4);
    border: 0;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font: inherit;
    text-align: left;
    cursor: pointer;
}
.alternative[hidden] { display: none; }
.alternative:last-child { border-bottom: 0; }
.alternative:hover { background: var(--action-tint); }
.alternative:focus-visible { outline: 3px solid var(--c-blue); outline-offset: -3px; }
.alternative:disabled { cursor: default; }
.alternative.is-active { background: var(--c-navy); color: var(--on-dark); box-shadow: inset 6px 0 0 var(--action); }
.alternative__index { font-family: var(--font-mono); font-size: var(--fs-100); color: var(--series-color); }
.alternative.is-active .alternative__index { color: var(--on-dark-muted); }
.alternative__copy { display: grid; gap: var(--sp-1); min-width: 0; }
.alternative__copy[hidden] { display: none; }
.alternative__title { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2); }
.alternative__title[hidden] { display: none; }
.alternative__title strong { font-size: var(--fs-400); font-weight: 500; }
.alternative__bound {
    padding: 2px 6px;
    border-radius: 999px;
    background: var(--color-bg);
    font-family: var(--font-mono);
    font-size: 0.625rem;
    color: var(--color-text-muted);
}
.alternative.is-active .alternative__bound { background: var(--on-dark-line); color: var(--on-dark-muted); }
.alternative__text { font-size: var(--fs-100); color: var(--color-text-muted); }
.alternative.is-active .alternative__text, .alternative.is-active .alternative__score small { color: var(--on-dark-muted); }
.alternative__metrics { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--sp-2); margin-top: var(--sp-1); }
.alternative__metrics[hidden] { display: none; }
.alt-metric { display: grid; gap: 1px; min-width: 0; padding-top: var(--sp-1); border-top: 1px solid var(--color-border); }
.alt-metric[hidden] { display: none; }
.alternative.is-active .alt-metric { border-top-color: var(--on-dark-line); }
.alt-metric em {
    font-family: var(--font-mono);
    font-size: 0.5625rem;
    font-style: normal;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.alternative.is-active .alt-metric em { color: var(--on-dark-muted); }
.alt-metric b { font-size: var(--fs-100); font-weight: 600; white-space: nowrap; }
.alt-metric__delta { font-family: var(--font-mono); font-size: 0.625rem; font-style: normal; white-space: nowrap; color: var(--color-text-muted); }
.alt-metric__delta.is-better { color: var(--delta-better); }
.alt-metric__delta.is-worse { color: var(--delta-worse); }
.alternative.is-active .alt-metric__delta { color: var(--on-dark-muted); }
.alternative.is-active .alt-metric__delta.is-better { color: var(--action); }
.alternative.is-active .alt-metric__delta.is-worse { color: var(--delta-worse-on-dark); }
.alternative__score { display: grid; gap: 2px; text-align: right; }
.alternative__score[hidden] { display: none; }
.alternative__score b { font-size: var(--fs-500); font-weight: 500; }
.alternative__score small { font-size: 0.625rem; color: var(--color-text-muted); }
.alternative.is-active .score-bar { background: var(--on-dark-line); }
.alternative__arrow { align-self: center; transition: transform var(--dur-fast); }
.alternative:hover .alternative__arrow, .alternative.is-active .alternative__arrow { transform: translateX(3px); }
.results__notes { margin-top: var(--sp-2); }

/* --- Narrower screens (the prototype's steps, on the page widths the tour measures) ---------------------- */
@media (max-width: 1260px) {
    .metric-grid--results { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .guardrail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 1100px) {
    .stage__content--country { grid-template-columns: 13rem minmax(0, 1fr); }
    .metric-grid--headline, .metric-grid--baseline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .question-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .question-card[data-role="card-bounds"] { grid-column: 1 / -1; }
    .explorer__layout { grid-template-columns: 1fr; }
    .explorer__radar { border-right: 0; border-bottom: 1px solid var(--color-border); }
}
@media (max-width: 860px) {
    .stage { grid-template-columns: 1fr; gap: var(--sp-3); padding: var(--sp-3); }
    .stage__rail {
        display: grid;
        grid-template-columns: auto auto 1fr;
        grid-template-rows: auto auto;
        align-items: center;
        column-gap: var(--sp-3);
        padding: 0 0 var(--sp-3);
        border-right: 0;
        border-bottom: 1px solid var(--color-border);
    }
    .stage__number, .stage__icon { grid-row: 1 / 3; }
    .stage__content--country { grid-template-columns: 1fr; }
    .question-grid { grid-template-columns: 1fr; }
    .investment-row { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .investment-row .action-badge, .investment-row__name { grid-column: 1 / -1; }
    .investment-row__stat { text-align: left; white-space: normal; }
    .flow__hint { display: block; }
    .alternative { grid-template-columns: 2rem minmax(0, 1fr) auto; }
    .alternative__score { grid-column: 2; grid-row: 2; text-align: left; }
    .alternative__metrics { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
    .metric-grid, .metric-grid--headline, .metric-grid--baseline, .metric-grid--results { grid-template-columns: 1fr; }
    .run-bar { grid-template-columns: auto minmax(0, 1fr); }
    .run-bar__button { grid-column: 1 / -1; justify-content: center; }
    .country-empty { flex-direction: column; text-align: center; }
    .alternative__metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .radar-legend { grid-template-columns: 1fr; }
    .readout__row { grid-template-columns: 6.5rem minmax(0, 1fr) 2.75rem; }
    .results__context { justify-content: flex-start; }
}

/* --- A notice across the width ---------------------------------------------------------------------------- */
.banner {
    padding: var(--sp-3) var(--sp-4);
    border-radius: var(--radius-sm);
    margin-bottom: var(--sp-4);
}
.banner--warning { background: var(--color-warning-bg); color: var(--c-navy); border-left: 4px solid var(--c-yellow); }
.banner--info { background: var(--info-bg); color: var(--info-ink); border-left: 4px solid var(--c-blue); }

/* --- Charts (the comparison and the case-study analyses) ---------------------------------------------------- */
.chart-grid {
    display: grid;
    gap: var(--sp-4);
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 26rem), 1fr));
    margin-bottom: var(--sp-5);
}
.chart-grid[hidden] { display: none; }
.chart-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--sp-4);
    min-width: 0;
}
.chart-card__title { margin: 0 0 var(--sp-2); font-size: var(--fs-300); }
.chart-card__note { margin: 0 0 var(--sp-2); }
/* Chart.js sizes itself to its parent, so the parent has the height. */
.chart-box { position: relative; height: 16rem; min-width: 0; }
.chart-box--tall { height: 24rem; }
.results__block { margin-bottom: var(--sp-5); }
.results__meta { margin-top: var(--sp-3); }

/* --- Choices as cards (the case-study form) ------------------------------------------------------------------ */
.step { margin-bottom: var(--sp-6); }
.step__title { font-size: var(--fs-500); }
.choice-cards {
    display: grid;
    gap: var(--sp-3);
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
}
.choice-cards[hidden] { display: none; }
/* A radio as a card: the whole card is the label, the checked one wears the green rule. */
.choice-card {
    display: flex;
    gap: var(--sp-2);
    align-items: flex-start;
    padding: var(--sp-3) var(--sp-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    cursor: pointer;
}
.choice-card[hidden] { display: none; }
.choice-card:hover { border-color: var(--c-navy); }
.choice-card:has(input:checked) { border-color: var(--action); box-shadow: inset 4px 0 0 var(--action); }
.choice-card:has(input:focus-visible) { outline: 3px solid var(--c-blue); outline-offset: 2px; }
.choice-card > input { flex: 0 0 auto; margin-top: 0.3em; }
.choice-card__title { display: block; font-weight: 600; color: var(--c-navy); }
.choice-card__text { display: block; font-size: var(--fs-200); color: var(--color-text-muted); }

/* --- Run history and comparison ------------------------------------------------------------------------------- */
.run-select { width: 1.25rem; height: 1.25rem; }
.compare-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--sp-3);
    margin-bottom: var(--sp-4);
}
.compare-bar[hidden] { display: none; }
.compare-table th[scope="row"] { font-weight: 600; color: var(--c-navy); text-transform: none; letter-spacing: 0; }
.compare-table td, .compare-table th { white-space: nowrap; }

/* --- Case-study analyses ---------------------------------------------------------------------------------------- */
.analysis-progress { width: 100%; height: 0.5rem; accent-color: var(--action); }
.analysis-list { display: grid; gap: var(--sp-3); }
.analysis-list[hidden] { display: none; }