/* Estimator panel and the letter form (role A3). PLAN §5.8, §5.12, §14 (forms). */

/* ---- shared fields ------------------------------------------------------ */
.field { margin-top: var(--s-5); min-width: 0; }
.field:first-child { margin-top: 0; }
.field__label {
  display: block;
  margin-bottom: var(--s-2);
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: var(--t-ui);
  line-height: 1.3;
  letter-spacing: 0.005em;
  color: var(--ink);
}
.field__req { font-weight: 400; color: var(--ink-soft); }
fieldset.field, fieldset.estimator__choice { margin: var(--s-5) 0 0; padding: 0; border: 0; }
fieldset.estimator__choice { margin-top: var(--s-5); }
legend.field__label { padding: 0; }
.field__hint {
  margin: calc(-1 * var(--s-1)) 0 var(--s-2);
  font-size: var(--t-note);
  line-height: 1.45;
  color: var(--ink-soft);
}
.input {
  display: block;
  width: 100%;
  min-height: 44px;
  padding: 0.625rem 0.75rem;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--control-edge);
  border-radius: var(--r);
  font-family: var(--font-text);
  font-size: 1rem;
  line-height: 1.4;
  transition: border-color var(--d-hover) var(--ease-out);
}
.input--area { min-height: 8.5rem; resize: vertical; }
.input:focus-visible { border-color: var(--forest); }
.input[aria-invalid="true"] { border-color: var(--ink); border-width: 2px; padding: calc(0.625rem - 1px) calc(0.75rem - 1px); }
.choice {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  min-height: 44px;
  cursor: pointer;
  line-height: 1.35;
}
.choice input { flex: none; width: 1.125rem; height: 1.125rem; margin: 0; cursor: pointer; }
.field__error {
  margin-top: var(--s-2);
  padding-left: var(--s-3);
  border-left: 2px solid currentColor;
  font-weight: 700;
  font-size: var(--t-note);
  line-height: 1.45;
}

/* ---- estimator (the only raised panel) --------------------------------- */
.estimator {
  background: var(--paper);
  border-radius: var(--r);
  box-shadow: var(--e1);
  padding: var(--s-6) var(--s-5);
}
@media (min-width: 861px) {
  .estimator { padding: var(--s-6); }
}
.estimator__title { margin-bottom: var(--s-2); }
.estimator__qty { margin-top: var(--s-5); }
.estimator__inputs {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--s-4);
}
.estimator__range {
  width: 100%;
  min-height: 44px;
  margin: 0;
  accent-color: var(--forest);
  cursor: pointer;
}
.estimator__num { display: inline-flex; align-items: center; gap: var(--s-2); }
.estimator__number { width: 6.5rem; text-align: right; font-variant-numeric: tabular-nums; }
.estimator__unit {
  min-width: 3.25rem;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: var(--t-ui);
  color: var(--ink-soft);
}
.estimator__total {
  display: block;
  margin-top: var(--s-6);
  min-height: 1em;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.25rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  text-wrap: balance;
}
.estimator__note {
  margin-top: var(--s-4);
  font-size: var(--t-note);
  line-height: 1.55;
  color: var(--ink-soft);
}
.estimator [data-est-carry] { margin-top: var(--s-5); }
@media (max-width: 400px) {
  .estimator__inputs { grid-template-columns: minmax(0, 1fr); }
}

/* ---- the letter (on paper, under the forest band) ------------------------ */
.field--minat .choice { align-items: flex-start; padding-top: 0.6875rem; }
.field--minat .choice input { margin-top: 0.1rem; }
@media (min-width: 560px) {
  .field--choice:not(.field--minat) { display: flex; flex-wrap: wrap; column-gap: var(--s-6); }
  .field--choice:not(.field--minat) > legend { width: 100%; float: left; }
  .field--minat { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--s-5); }
  .field--minat > legend { grid-column: 1 / -1; float: left; width: 100%; }
}
.letter__send {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-6);
}
.letter__status { margin-top: var(--s-4); max-width: 52ch; color: var(--ink); }
.letter__status:empty { display: none; }
[data-letter-copy] { margin-top: var(--s-2); }
.letter__direct {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 var(--s-5);
  margin-top: var(--s-5);
  font-size: var(--t-note);
  color: var(--ink-soft);
}
.letter__direct a { display: inline-flex; align-items: center; min-height: 44px; }

/* live letter sheet: a cream sheet beside the form */
.letter-preview__toggle {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  min-height: 44px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: var(--t-ui);
  color: var(--ink);
}
.letter-preview__toggle::-webkit-details-marker { display: none; }
.letter-preview__toggle .icon { transition: transform var(--d-state) var(--ease-out); }
.letter-preview[open] > .letter-preview__toggle .icon { transform: rotate(180deg); }
.letter-sheet {
  margin-top: var(--s-3);
  min-height: 18rem;
  padding: var(--s-6) var(--s-5);
  background: var(--paper-2);
  color: var(--ink);
  border: 1px solid var(--rule);   /* a sheet on the page, not raised: only the estimator is a raised panel */
  font-size: var(--t-caption);
  line-height: 1.6;
  letter-spacing: 0.003em;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.letter-sheet__meta {
  display: block;
  padding-bottom: var(--s-3);
  margin-bottom: var(--s-4);
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: var(--t-label);
  line-height: 1.5;
  color: var(--ink-soft);
  white-space: normal;
}
.letter-sheet__empty { color: var(--ink-soft); font-style: italic; }
@media (min-width: 861px) {
  .kontak__sheet { position: relative; }
  .letter-preview { position: sticky; top: calc(var(--head-h) + var(--s-5)); }
  .letter-preview__toggle { display: none; }
  .letter-sheet { margin-top: 0; padding: var(--s-7) var(--s-6); }
}

/* Without JS the estimator cannot calculate: the panel is left out, the instrument table carries the figures. */
html.no-js [data-estimator] { display: none; }