/**
 * Resources calculators (T31, D-068) -- loaded only on /resources pages via layout.php's
 * $extraStyles. Form controls are the wizard's (wizard.css "Form controls") generalised to a
 * `.calc` scope; the `cs-*` classes colour the SVG graphics drawn by assets/js/calc/ui/svg.js.
 * Colours come exclusively from tokens.css.
 */

/* ---------- Overview page ---------- */

.calc-overview__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-6);
  padding: 0;
  list-style: none;
}

@media (min-width: 640px) {
  .calc-overview__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .calc-overview__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.calc-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  height: 100%;
  padding: var(--space-5);
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  color: var(--color-ink);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}

.calc-card:hover,
.calc-card:focus-visible {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.calc-card h2 {
  margin: 0;
  font-size: 1.15rem;
}

.calc-card p {
  margin: 0;
  color: var(--color-ink-muted);
  font-size: var(--text-small);
}

.calc-card__more {
  margin-top: auto;
  font-weight: 700;
  font-size: var(--text-small);
  color: var(--color-accent);
}

.calc-card__icon,
.calc__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  background: var(--color-paper-dim);
  color: var(--color-accent);
}

.calc-card__icon svg,
.calc__icon svg {
  width: 28px;
  height: 28px;
}

/* ---------- Calculator page ---------- */

.calc-breadcrumb {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  font-size: var(--text-small);
  color: var(--color-ink-muted);
}

.calc-breadcrumb a {
  color: var(--color-ink-muted);
}

.calc__head {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.calc__head > div {
  min-width: 0;
}

/* German compounds ("Bewegungsunschärfe-…") are wider than a phone screen at display size. */
.calc__head h1 {
  margin: 0 0 var(--space-2);
  font-size: clamp(1.6rem, 6.5vw, var(--text-display));
  hyphens: auto;
  overflow-wrap: break-word;
}

@media (max-width: 639px) {
  .calc__icon {
    display: none;
  }
}

.calc__head .hero-sub {
  margin-top: 0;
}

.calc__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-6);
  align-items: start;
}

@media (min-width: 1024px) {
  .calc__layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  /* Keeps the graphic in view while the visitor works down a long form. */
  .calc__output {
    position: sticky;
    top: var(--space-4);
  }
}

.calc__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.calc-group {
  margin: 0;
  padding: var(--space-5) var(--space-4) var(--space-4);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: #fff;
}

.calc-group legend {
  padding: 0 var(--space-2);
  margin-left: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-ink-muted);
  font-weight: 700;
}

.calc-group__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-3);
}

.calc-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
}

.calc-field--wide,
.calc-field--check {
  grid-column: 1 / -1;
}

.calc-field[hidden] {
  display: none;
}

.calc-field > label,
.calc-radio legend {
  font-weight: 700;
  font-size: var(--text-small);
  color: var(--color-ink);
}

.calc-field--check label {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  font-weight: 400;
}

.calc input[type="text"],
.calc input[type="search"],
.calc select {
  display: block;
  width: 100%;
  min-width: 0;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: var(--text-body);
  color: var(--color-ink);
  background: #fff;
}

.calc input:focus-visible,
.calc select:focus-visible,
.calc button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.calc input[aria-invalid] {
  border-color: var(--color-danger);
}

.calc-input {
  position: relative;
  display: flex;
  align-items: center;
}

.calc-input input[type="text"] {
  padding-right: 4.2em;
  font-variant-numeric: tabular-nums;
}

.calc-input__unit {
  position: absolute;
  right: var(--space-3);
  font-size: var(--text-small);
  color: var(--color-ink-muted);
  pointer-events: none;
}

.calc-field__hint {
  font-size: var(--text-small);
  color: var(--color-ink-muted);
  line-height: 1.35;
}

.calc-field__error {
  font-size: var(--text-small);
  color: var(--color-danger);
}

.calc-field__error:empty {
  display: none;
}

.calc-radio {
  margin: 0;
  padding: 0;
  border: 0;
}

.calc-group .calc-radio legend {
  margin: 0 0 var(--space-2);
  padding: 0;
  font-family: var(--font-body);
  letter-spacing: normal;
  text-transform: none;
  color: var(--color-ink);
}

.calc-radio__options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* Segmented-control look for radio groups. */
.calc-radio__options label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: var(--text-small);
  cursor: pointer;
}

.calc-radio__options label:has(input:checked) {
  border-color: var(--color-accent);
  box-shadow: inset 0 0 0 1px var(--color-accent);
  font-weight: 700;
}

.calc__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.btn--small {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-small);
}

.calc__share-status {
  font-size: var(--text-small);
  color: var(--color-success);
  overflow-wrap: anywhere;
}

/* ---------- Database prefill picker ---------- */

.calc-preset {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-4);
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-paper-dim);
}

.calc-preset label {
  font-weight: 700;
  font-size: var(--text-small);
}

.calc-preset__list {
  position: absolute;
  z-index: 10;
  top: 100%;
  left: 0;
  right: 0;
  margin: var(--space-1) 0 0;
  padding: var(--space-1);
  list-style: none;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  max-height: 320px;
  overflow-y: auto;
}

.calc-preset__item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 0;
  border-radius: var(--radius-sm);
  background: none;
  font: inherit;
  text-align: left;
  color: var(--color-ink);
  cursor: pointer;
}

.calc-preset__item:hover,
.calc-preset__item:focus-visible {
  background: var(--color-paper-dim);
}

.calc-preset__item span {
  font-size: var(--text-small);
  color: var(--color-ink-muted);
}

.calc-preset__empty {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-small);
  color: var(--color-ink-muted);
}

.calc-preset__selected {
  margin: 0;
  font-size: var(--text-small);
  color: var(--color-success);
}

/* ---------- Output: headline figures, graphic, details ---------- */

.calc__output {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-width: 0;
}

.calc-kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-3);
}

.calc-kpi {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-surface-dark);
  color: var(--color-on-dark);
}

.calc-kpi__label {
  font-size: var(--text-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-on-dark-muted);
}

.calc-kpi__value {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.calc-kpi__sub {
  font-size: var(--text-small);
  color: var(--color-on-dark-muted);
}

.calc-kpis__empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-paper-dim);
  color: var(--color-ink-muted);
}

.calc-figure {
  margin: 0;
  padding: var(--space-3);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: #fff;
}

.calc-figure figcaption {
  margin-top: var(--space-2);
  font-size: var(--text-small);
  color: var(--color-ink-muted);
}

.calc-svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.calc--empty .calc-figure {
  opacity: 0.35;
}

.calc-results__title {
  margin: var(--space-2) 0 0;
  font-size: var(--text-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

/* Same ledger look as the wizard's .spec-list (wizard.css), which isn't loaded here. */
.calc .spec-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  column-gap: var(--space-5);
  row-gap: var(--space-1);
  margin: 0;
}

.calc .spec-list__group {
  grid-column: 1 / -1;
  margin: var(--space-3) 0 0;
  padding-bottom: var(--space-1);
  border-bottom: 1px solid var(--color-line);
  font-weight: 700;
  font-size: var(--text-small);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.calc .spec-list__group:first-child {
  margin-top: 0;
}

.calc .spec-list__label {
  color: var(--color-ink-muted);
}

.calc .spec-list__value {
  margin: 0;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.calc .spec-list__value--muted { font-weight: 400; color: var(--color-ink-muted); }
.calc .spec-list__value--ok { color: var(--color-success); }
.calc .spec-list__value--warn { color: var(--color-warning); }
.calc .spec-list__value--bad { color: var(--color-danger); }

.calc-notes {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Status always carries an icon + text, never colour alone. */
.calc-note {
  position: relative;
  padding: var(--space-2) var(--space-3) var(--space-2) 2.2em;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-line);
  background: var(--color-paper-dim);
  font-size: var(--text-small);
}

.calc-note::before {
  position: absolute;
  left: 0.75em;
  font-weight: 700;
}

.calc-note--info::before { content: 'i'; color: var(--color-ink-muted); }
.calc-note--ok { border-left-color: var(--color-success); }
.calc-note--ok::before { content: '✓'; color: var(--color-success); }
.calc-note--warn { border-left-color: var(--color-warning); }
.calc-note--warn::before { content: '!'; color: var(--color-warning); }
.calc-note--bad { border-left-color: var(--color-danger); }
.calc-note--bad::before { content: '✕'; color: var(--color-danger); }

/* ---------- Explanation + related ---------- */

.calc-explain p,
.calc-explain ul {
  max-width: 72ch;
}

.calc-formula {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-paper-dim);
  font-family: var(--font-mono);
  font-size: var(--text-small);
  overflow-wrap: anywhere;
}

.calc-related__list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-3);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.calc-related__list a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: #fff;
  color: var(--color-ink);
  text-decoration: none;
  font-weight: 700;
  font-size: var(--text-small);
}

.calc-related__list a:hover,
.calc-related__list a:focus-visible {
  border-color: var(--color-accent);
}

.calc-related__icon {
  display: inline-flex;
  color: var(--color-accent);
}

/* Legal audit: planning-estimate disclaimer above the related-calculators list. */
.calc-disclaimer {
  margin-top: var(--space-6);
  font-size: var(--text-small);
  color: var(--color-ink-muted);
}