/* =========================================================
   CALCULATOR — form, results, charts, tables, FAQ
   ========================================================= */

.calc-shell {
  display: grid;
  grid-template-columns: minmax(320px, 420px) 1fr;
  gap: 28px;
  align-items: start;
}
@media (max-width: 980px) {
  .calc-shell { grid-template-columns: 1fr; }
}

/* ---- Input card ---- */
.calc-form {
  padding: 28px;
  position: sticky; top: calc(var(--header-h) + 16px);
}
@media (max-width: 980px) { .calc-form { position: static; } }

.field { margin-bottom: 22px; }
.field-label {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: .88rem; font-weight: 600; color: var(--forest-dark); margin-bottom: 8px;
}
.field-label .value-pill {
  font-family: var(--font-mono); background: rgba(11,61,46,0.07); color: var(--forest-dark);
  padding: 2px 10px; border-radius: 999px; font-size: .82rem;
}
.field input[type="number"], .field input[type="date"], .field input[type="text"], .field input[type="email"], .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-family: var(--font-mono); font-size: 1rem; background: var(--paper-raised); color: var(--ink);
}
.field input:focus, .field textarea:focus { outline: 2px solid var(--gold); outline-offset: 1px; border-color: var(--gold); }
.field input[type="range"] {
  width: 100%; accent-color: var(--forest); margin-top: 6px;
}
.field-hint { font-size: .78rem; color: var(--muted); margin-top: 6px; }

.toggle-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0; border-top: 1px solid var(--line); margin-top: 4px;
}
.toggle-row label { font-weight: 600; font-size: .9rem; }
.switch { position: relative; width: 46px; height: 26px; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .track {
  position: absolute; inset: 0; background: #D9D2BC; border-radius: 999px; transition: .2s; cursor: pointer;
}
.switch .track::before {
  content: ""; position: absolute; width: 20px; height: 20px; left: 3px; top: 3px;
  background: #fff; border-radius: 50%; transition: .2s; box-shadow: 0 1px 2px rgba(0,0,0,.2);
}
.switch input:checked + .track { background: var(--forest); }
.switch input:checked + .track::before { transform: translateX(20px); }
.switch input:focus-visible + .track { outline: 2px solid var(--gold); outline-offset: 2px; }

.stepup-panel { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
.stepup-panel.open { max-height: 220px; }

.calc-actions { display: flex; gap: 12px; margin-top: 26px; }
.calc-actions .btn { flex: 1; }

/* ---- Results ---- */
.results-summary {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 22px;
}
@media (max-width: 640px) { .results-summary { grid-template-columns: 1fr 1fr; } }
.result-card { padding: 20px; }
.result-card .label { font-size: .8rem; color: var(--muted); margin-bottom: 6px; }
.result-card .amount {
  font-family: var(--font-mono); font-size: clamp(1.15rem, 2.4vw, 1.5rem); font-weight: 700; color: var(--forest-dark);
}
.result-card.highlight { background: var(--forest); color: var(--paper); border-color: var(--forest); }
.result-card.highlight .label { color: #BFD3C8; }
.result-card.highlight .amount { color: var(--gold-light); }
.result-card .delta { font-size: .78rem; margin-top: 6px; color: var(--muted); }
.result-card .delta.positive { color: #2E7D4F; }

/* ---- Chart cards ---- */
.charts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 24px; }
@media (max-width: 820px) { .charts-grid { grid-template-columns: 1fr; } }
.chart-card { padding: 20px; }
.chart-card h3 { margin-bottom: 4px; }
.chart-card canvas { max-width: 100%; }

/* ---- Report actions ---- */
.report-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }

/* ---- Data table ---- */
.table-wrap { overflow-x: auto; border-radius: var(--radius-md); border: 1px solid var(--line); background: var(--paper-raised); }
table.data-table { width: 100%; border-collapse: collapse; font-size: .88rem; min-width: 640px; }
table.data-table th, table.data-table td {
  padding: 11px 14px; text-align: right; border-bottom: 1px solid var(--line); font-family: var(--font-mono);
}
table.data-table th:first-child, table.data-table td:first-child { text-align: left; font-family: var(--font-body); }
table.data-table thead th {
  background: rgba(11,61,46,0.05); color: var(--forest-dark); font-family: var(--font-body); font-weight: 700;
  text-align: right; position: sticky; top: 0;
}
table.data-table thead th:first-child { text-align: left; }
table.data-table tbody tr:hover { background: rgba(201,162,39,0.06); }
.table-tabs { display: flex; gap: 8px; margin-bottom: 14px; }
.table-tab {
  padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--paper-raised);
  font-size: .85rem; font-weight: 600; cursor: pointer;
}
.table-tab.active { background: var(--forest); color: var(--paper); border-color: var(--forest); }

/* ---- FAQ Accordion ---- */
.faq-list { max-width: 820px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-question {
  width: 100%; text-align: left; background: none; border: none; cursor: pointer;
  padding: 18px 4px; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  font-family: var(--font-body); font-weight: 600; font-size: 1rem; color: var(--forest-dark);
}
.faq-question .icon { flex-shrink: 0; transition: transform .2s ease; color: var(--gold); font-size: 1.2rem; }
.faq-question[aria-expanded="true"] .icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
.faq-answer-inner { padding: 0 4px 18px; color: var(--muted); }

/* ---- Anchors for SEO content nav ---- */
.toc { background: rgba(11,61,46,0.04); border-radius: var(--radius-md); padding: 20px 24px; margin-bottom: 30px; }
.toc h4 { margin-bottom: 10px; font-size: .85rem; text-transform: uppercase; letter-spacing: .04em; }
.toc ol { columns: 2; column-gap: 24px; padding-left: 1.1em; font-size: .9rem; }
@media (max-width: 640px) { .toc ol { columns: 1; } }

/* ---- Contact form ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }
.form-status { padding: 12px 14px; border-radius: var(--radius-sm); font-size: .9rem; display: none; margin-bottom: 16px; }
.form-status.success { display: block; background: rgba(46,125,79,0.1); color: #245C3D; }
.form-status.error { display: block; background: rgba(192,80,58,0.1); color: var(--coral); }