/* ============================================================
   Buyer calculators — Kelly Knows Homes
   Scoped under .hbcalc so nothing leaks into site.css.
   Inputs sit on the warm page surface; results live on an
   onyx panel (same treatment as the stats/pullquote bands).
   ============================================================ */

/* ─── SECTION SHELL + TABS ──────────────────────────── */
.calc-section { padding: clamp(48px, 6vw, 80px) 0 clamp(72px, 9vw, 120px); }
.calc-inner { max-width: var(--container-wide); margin: 0 auto; padding: 0 var(--gutter); }
.calc-tabs {
  display: flex; gap: clamp(20px, 4vw, 48px);
  border-bottom: 1px solid var(--color-line);
  margin-bottom: clamp(36px, 5vw, 56px);
}
.calc-tab {
  appearance: none; background: none; border: 0; cursor: pointer;
  font-family: var(--font-sans); font-size: 12px; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--color-fg-subtle);
  padding: 0 0 16px; margin-bottom: -1px;
  border-bottom: 2px solid transparent;
  transition: color var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard);
}
.calc-tab .num { font-family: var(--font-mono); letter-spacing: 0.04em; margin-right: 10px; opacity: 0.7; }
.calc-tab:hover { color: var(--color-fg); }
.calc-tab[aria-selected="true"] { color: var(--color-fg); border-bottom-color: var(--kkh-terracotta); }
.calc-panel[hidden] { display: none; }

/* ─── SHARED CALCULATOR SKIN ────────────────────────── */
.hbcalc { font-family: var(--font-sans); color: var(--color-fg); line-height: var(--lh-body); }
.hbcalc *, .hbcalc *::before, .hbcalc *::after { box-sizing: border-box; }
.hbcalc h2 {
  font-family: var(--font-display); font-weight: var(--fw-regular);
  font-size: clamp(34px, 4vw, 52px); line-height: var(--lh-heading);
  letter-spacing: var(--ls-heading); margin: 0 0 12px;
}
.hbcalc h2 em { font-style: italic; color: var(--color-fg-subtle); }
.hbcalc .hb-sub {
  color: var(--color-fg-muted); font-size: 17px; line-height: 1.6;
  max-width: 60ch; margin: 0 0 clamp(32px, 4vw, 48px);
}
.hbcalc .hb-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 3.5vw, 56px); align-items: start;
}
.hbcalc .hb-card { padding: 0; }
.hbcalc .hb-field { margin-bottom: 26px; }
.hbcalc label.hb-label,
.hbcalc .hb-label {
  display: block; font-family: var(--font-sans); font-size: 11px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--color-fg-subtle); margin-bottom: 10px;
}
.hbcalc .hb-help { font-size: 13px; color: var(--color-fg-muted); margin-top: 8px; line-height: 1.5; }
.hbcalc input[type=number], .hbcalc select {
  width: 100%; box-sizing: border-box;
  font-family: var(--font-sans); font-size: 16px; padding: 14px 16px;
  background: var(--color-bg); border: 1px solid var(--color-line-strong);
  border-radius: var(--r-md); color: var(--color-fg); outline: none;
  transition: border-color var(--dur-base) var(--ease-standard);
}
.hbcalc input[type=number] { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.hbcalc input:focus, .hbcalc select:focus { border-color: var(--color-fg); }
.hbcalc .hb-money-wrap, .hbcalc .hb-pct-wrap { position: relative; }
.hbcalc .hb-money-wrap > span, .hbcalc .hb-pct-wrap > span {
  position: absolute; top: 50%; transform: translateY(-50%);
  font-family: var(--font-mono); font-size: 14px;
  color: var(--color-fg-subtle); pointer-events: none;
}
.hbcalc .hb-money-wrap > span { left: 16px; }
.hbcalc .hb-money-wrap input { padding-left: 32px; }
.hbcalc .hb-pct-wrap > span { right: 16px; }
.hbcalc .hb-two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* segmented choices */
.hbcalc .hb-seg { display: flex; gap: 8px; flex-wrap: wrap; }
.hbcalc .hb-seg button {
  flex: 1; min-width: 104px; padding: 12px 10px; cursor: pointer;
  font-family: var(--font-sans); font-size: 13px; line-height: 1.3;
  color: var(--color-fg); background: var(--color-bg);
  border: 1px solid var(--color-line-strong); border-radius: var(--r-md);
  transition: background var(--dur-base) var(--ease-standard), color var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard);
}
.hbcalc .hb-seg button small {
  display: block; font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.02em; color: var(--color-fg-subtle); margin-top: 4px;
}
.hbcalc .hb-seg button:hover { border-color: var(--color-fg); }
.hbcalc .hb-seg button.on {
  background: var(--kkh-onyx); border-color: var(--kkh-onyx); color: var(--color-fg-inverse);
}
.hbcalc .hb-seg button.on small { color: var(--kkh-bone-70); }
.hbcalc .hb-condo { display: none; }
.hbcalc .hb-condo.show { display: block; }

/* down payment: MSHDA vs manual */
.hbcalc .hb-mshda {
  display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
  padding: 14px 16px; cursor: pointer; font-family: var(--font-sans);
  color: var(--color-fg); background: var(--color-bg);
  border: 1px solid var(--color-line-strong); border-radius: var(--r-md);
  transition: border-color var(--dur-base) var(--ease-standard), background var(--dur-base) var(--ease-standard);
}
.hbcalc .hb-mshda:hover { border-color: var(--color-fg); }
.hbcalc .hb-mshda.on { border-color: var(--kkh-terracotta); background: rgba(182, 90, 60, 0.06); }
.hbcalc .hb-mshda strong { font-size: 15px; font-weight: var(--fw-medium); }
.hbcalc .hb-mshda small { display: block; font-size: 13px; color: var(--color-fg-muted); margin-top: 2px; }
.hbcalc .hb-check {
  width: 20px; height: 20px; border-radius: 50%; flex: 0 0 20px;
  border: 1px solid var(--color-line-strong);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; color: transparent;
}
.hbcalc .hb-mshda.on .hb-check { background: var(--kkh-terracotta); border-color: var(--kkh-terracotta); color: #fff; }
.hbcalc .hb-or {
  text-align: center; font-family: var(--font-sans); font-size: 11px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--color-fg-subtle); margin: 16px 0;
}
.hbcalc .hb-dpman.disabled { opacity: 0.38; pointer-events: none; }
.hbcalc .hb-dp-toggle { display: flex; gap: 8px; margin-bottom: 10px; }
.hbcalc .hb-dp-toggle button {
  flex: 1; padding: 10px; cursor: pointer;
  font-family: var(--font-sans); font-size: 12px; letter-spacing: 0.06em;
  color: var(--color-fg); background: var(--color-bg);
  border: 1px solid var(--color-line-strong); border-radius: var(--r-md);
}
.hbcalc .hb-dp-toggle button.on { background: var(--kkh-onyx); border-color: var(--kkh-onyx); color: var(--color-fg-inverse); }

/* collapsible advanced block */
.hbcalc details { margin-top: 4px; border-top: 1px solid var(--color-line); padding-top: 20px; }
.hbcalc summary {
  cursor: pointer; font-family: var(--font-sans); font-size: 11px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--color-fg);
}
.hbcalc details .hb-field { margin-top: 20px; }

/* ─── RESULTS PANEL (onyx) ──────────────────────────── */
.hbcalc .hb-result {
  background: var(--kkh-onyx); color: var(--color-fg-inverse);
  border-radius: var(--r-lg); padding: clamp(28px, 3vw, 40px);
  --seg-pi: #B65A3C; --seg-tax: #B5B0A6; --seg-ins: #8B7F6E; --seg-pmi: #8E4327; --seg-hoa: rgba(244,241,236,0.42);
}
.hbcalc .hb-result .hb-cap {
  font-family: var(--font-sans); font-size: 11px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--kkh-ivory-55);
}
.hbcalc .hb-headline { padding-bottom: 24px; border-bottom: 1px solid var(--kkh-ivory-15); margin-bottom: 24px; }
.hbcalc .hb-payhead { padding-bottom: 20px; margin-bottom: 20px; }
.hbcalc .hb-big {
  font-family: var(--font-display); font-weight: var(--fw-regular);
  font-size: clamp(52px, 6vw, 76px); line-height: 1.02;
  letter-spacing: var(--ls-display); color: var(--color-fg-inverse); margin-top: 8px;
}
.hbcalc .hb-big small {
  font-family: var(--font-sans); font-size: 15px; font-weight: var(--fw-regular);
  letter-spacing: 0.04em; color: var(--kkh-ivory-55); margin-left: 4px;
}
.hbcalc .hb-block-title {
  font-family: var(--font-sans); font-size: 11px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--kkh-ivory-55); margin: 28px 0 8px;
}
.hbcalc .hb-row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 16px;
  padding: 10px 0; font-size: 15px; border-bottom: 1px solid var(--kkh-ivory-15);
}
.hbcalc .hb-row:last-child { border-bottom: none; }
.hbcalc .hb-row .hb-k { color: var(--kkh-ivory-70); }
.hbcalc .hb-row .hb-v { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: 15px; }
.hbcalc .hb-row.total { border-bottom: none; border-top: 1px solid var(--kkh-ivory-50); margin-top: 8px; padding-top: 14px; }
.hbcalc .hb-row.total .hb-k { color: var(--color-fg-inverse); }
.hbcalc .hb-row.total .hb-v { font-size: 20px; }

/* donut + legend */
.hbcalc .hb-donutwrap { display: flex; align-items: center; gap: 28px; margin: 8px 0 4px; }
.hbcalc .hb-donut { flex: 0 0 128px; width: 128px; }
.hbcalc .hb-legend { flex: 1; min-width: 0; }
.hbcalc .hb-legend .hb-row { padding: 8px 0; font-size: 14px; }
.hbcalc .hb-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 10px; vertical-align: middle; }

/* mini stats */
.hbcalc .hb-mini { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 24px; }
.hbcalc .hb-mini > div {
  background: rgba(244, 241, 236, 0.05); border: 1px solid var(--kkh-ivory-15);
  border-radius: var(--r-md); padding: 14px 12px;
}
.hbcalc .hb-mini .hb-mk {
  font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--kkh-ivory-55);
}
.hbcalc .hb-mini .hb-mv {
  font-family: var(--font-mono); font-variant-numeric: tabular-nums;
  font-size: 15px; margin-top: 6px;
}

/* CTA inside the dark panel */
.hbcalc .hb-cta { margin-top: 28px; }
.hbcalc .hb-cta a {
  display: flex; align-items: center; justify-content: center;
  background: var(--color-fg-inverse); color: var(--kkh-ink);
  text-decoration: none; padding: 16px 20px; border-radius: var(--r-md);
  font-family: var(--font-sans); font-size: 15px; font-weight: var(--fw-medium);
  letter-spacing: 0.01em;
  transition: background var(--dur-base) var(--ease-standard), color var(--dur-base) var(--ease-standard);
}
.hbcalc .hb-cta a:hover { background: var(--kkh-terracotta); color: var(--color-fg-inverse); }
.hbcalc .hb-cta p { text-align: center; color: var(--kkh-ivory-50); font-size: 13px; margin: 12px 0 0; }

/* amortization table */
.hbcalc .hb-amort { margin-top: 28px; }
.hbcalc .hb-amort details { border-top: 1px solid var(--kkh-ivory-15); padding-top: 20px; }
.hbcalc .hb-amort summary { color: var(--kkh-ivory-80); }
.hbcalc .hb-amort-scroll {
  max-height: 300px; overflow: auto;
  border: 1px solid var(--kkh-ivory-15); border-radius: var(--r-md);
}
.hbcalc table { width: 100%; border-collapse: collapse; font-family: var(--font-mono); font-size: 12px; }
.hbcalc th, .hbcalc td {
  padding: 9px 12px; text-align: right;
  border-bottom: 1px solid var(--kkh-ivory-15); font-variant-numeric: tabular-nums;
}
.hbcalc th:first-child, .hbcalc td:first-child { text-align: left; }
.hbcalc thead th {
  position: sticky; top: 0; background: var(--kkh-onyx);
  font-family: var(--font-sans); font-size: 10px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--kkh-ivory-55);
}
.hbcalc tbody tr:last-child td { border-bottom: none; }

.hbcalc .hb-fine { font-size: 12px; line-height: 1.6; color: var(--kkh-ivory-50); margin-top: 24px; }
.hbcalc .hb-fine strong { color: var(--kkh-bone-90); font-weight: var(--fw-medium); }

@media (max-width: 900px) {
  .hbcalc .hb-grid { grid-template-columns: 1fr; }
  .hbcalc .hb-donutwrap { gap: 18px; }
  .hbcalc .hb-donut { flex-basis: 96px; width: 96px; }
}
@media (max-width: 560px) {
  .hbcalc .hb-donutwrap { flex-direction: column; align-items: stretch; }
  .hbcalc .hb-donut { align-self: center; }
  .hbcalc .hb-mini { grid-template-columns: 1fr; }
  .calc-tabs { gap: 20px; }
  .calc-tab { font-size: 11px; }
}

/* cash-to-purchase block (mortgage calc) */
.hbcalc .hb-cash { margin-top: 26px; border-top: 1px solid var(--kkh-ivory-15); padding-top: 6px; }
.hbcalc .hb-row.credit .hb-v { color: var(--kkh-taupe); }
.hbcalc .hb-cash-note { font-size: 12px; line-height: 1.6; color: var(--kkh-ivory-50); margin-top: 12px; }

/* sub-label under a field label, opt-out checkbox, disabled segment group */
.hbcalc .hb-sublabel { font-size: 14px; line-height: 1.5; color: var(--color-fg-muted); margin: -4px 0 12px; }
.hbcalc .hb-seg.disabled { opacity: 0.38; pointer-events: none; }
.hbcalc .hb-opt { display: flex; align-items: flex-start; gap: 10px; margin-top: 14px; cursor: pointer; font-size: 14px; color: var(--color-fg); }
.hbcalc .hb-opt input[type=checkbox] { width: 17px; height: 17px; margin: 2px 0 0; flex: 0 0 17px; accent-color: var(--kkh-terracotta); cursor: pointer; }