/* Rent vs Buy Calculator — page-specific presentation.

   Shared shell, panels, hero, tables, fact cards, related cards, FAQ and Cozy's pick come from
   styles.css and results.css. This file adds only the split form/results layout, the down-payment
   toggle, first-month bars, timeline chart and decision controls. Everything is scoped to
   .rvb-page, and colours come from the existing theme tokens. */

.rvb-page main > .page-title p { max-width: 72ch; }
.rvb-page .cat-back { display: inline-block; margin-top: 2px; }
.rvb-layout { align-items: start; grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr); }
.rvb-noscript { margin: 0 0 16px; border-left: 4px solid var(--highlight); }
.rvb-form { min-width: 0; }
.rvb-form h2 { margin: 0; }
.rvb-form-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.rvb-form-head .hint { margin: 5px 0 0; }
.rvb-reset { flex: none; font-size: 0.78rem; padding: 7px 10px; min-height: 34px; }
.rvb-confirm { min-height: 1.2em; margin: 0 0 8px; color: var(--primary); font-size: 0.82rem; }

.rvb-page .field { margin-bottom: 14px; min-width: 0; }
.rvb-page .field > label,
.rvb-page .rvb-label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 0.88rem; }
.rvb-page .field input,
.rvb-page .field select { min-width: 0; width: 100%; }

.rvb-money,
.rvb-suffix-field {
  display: flex;
  align-items: stretch;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--input-bg);
}
.rvb-money:focus-within,
.rvb-suffix-field:focus-within { outline: 2px solid var(--highlight); outline-offset: 1px; }
.rvb-money input,
.rvb-suffix-field input {
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  padding: 10px 12px;
  font-variant-numeric: tabular-nums;
}
.rvb-money input:focus,
.rvb-suffix-field input:focus { outline: none !important; }
.rvb-prefix,
.rvb-suffix {
  display: inline-flex;
  align-items: center;
  flex: none;
  padding: 0 10px;
  color: var(--muted);
  background: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
}
.rvb-prefix[hidden],
.rvb-suffix[hidden] { display: none !important; }
.rvb-suffix-field > span { padding-inline: 10px; }

.rvb-segmented,
.rvb-toggle {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 3px;
  padding: 3px;
  margin-bottom: 8px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--accent);
}
.rvb-segmented button,
.rvb-toggle button {
  border: 0;
  border-radius: 6px;
  padding: 6px 10px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}
.rvb-segmented button[aria-pressed="true"],
.rvb-toggle button[aria-pressed="true"] { background: var(--card); color: var(--text); box-shadow: 0 1px 3px rgba(0, 0, 0, 0.14); }
.rvb-segmented button:focus-visible,
.rvb-toggle button:focus-visible { outline: 2px solid var(--highlight); outline-offset: 1px; }
.rvb-down-money { margin-top: 2px; }

.rvb-grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 12px; }
.rvb-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.rvb-page .chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  background: var(--card);
  color: var(--muted);
  font: inherit;
  font-size: 0.78rem;
  cursor: pointer;
}
.rvb-page .chip[aria-pressed="true"],
.rvb-page .chip.is-current { border-color: var(--highlight); color: var(--text); background: var(--accent); }
.rvb-page .chip:focus-visible { outline: 2px solid var(--highlight); outline-offset: 2px; }

.rvb-advanced { margin-top: 18px; border-top: 1px solid var(--border); padding-top: 14px; }
.rvb-advanced > summary {
  cursor: pointer;
  font-weight: 700;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.rvb-advanced > summary::before { content: "＋"; color: var(--highlight); font-weight: 700; }
.rvb-advanced[open] > summary::before { content: "−"; }
.rvb-advanced > summary:focus-visible { outline: 2px solid var(--highlight); outline-offset: 2px; }
.rvb-advanced-body { padding-top: 10px; }
.rvb-group { min-width: 0; border: 0; padding: 0; margin: 0 0 22px; }
.rvb-group legend { padding: 0; margin-bottom: 10px; font-size: 0.95rem; font-weight: 700; }
.rvb-group .hint { margin-top: -2px; }
.rvb-check {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: 6px 0 10px;
  font-size: 0.85rem;
  line-height: 1.45;
  cursor: pointer;
}
.rvb-check input { flex: none; margin-top: 3px; accent-color: var(--highlight); }
.rvb-tax-note {
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.5;
}

.rvb-results { min-width: 0; }
.rvb-results > h2:first-child { margin-top: 0; }
.rvb-page .rvb-results .rvb-hero {
  border-inline-start: 4px solid var(--highlight);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--on-primary);
}
.rvb-hero .label { font-size: 0.82rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; opacity: 0.9; }
.rvb-hero .sub { color: inherit; }
.rvb-hero-split { color: inherit; }
.rvb-hero-split > span { opacity: 0.95; }
.rvb-why { margin: 0 0 12px; font-size: 0.9rem; line-height: 1.55; color: var(--muted); }
.rvb-links { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 0 0 16px; font-size: 0.85rem; }
.rvb-links a { color: var(--primary); font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.rvb-links a:focus-visible { outline: 2px solid var(--highlight); outline-offset: 2px; }
.rvb-warning { padding: 11px 14px; border-left: 3px solid var(--highlight); border-radius: 0 8px 8px 0; background: var(--accent); color: var(--text); font-size: 0.85rem; line-height: 1.5; }
.rvb-warning[hidden] { display: none; }

.rvb-first-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.rvb-first-card { min-width: 0; padding: 14px; border: 1px solid var(--border); border-top: 3px solid var(--highlight); border-radius: 12px; background: var(--card); }
.rvb-first-card > span { display: block; color: var(--muted); font-size: 0.8rem; font-weight: 600; }
.rvb-first-card > strong { display: block; margin: 4px 0 6px; font-size: clamp(1.25rem, 3vw, 1.7rem); line-height: 1.2; overflow-wrap: anywhere; }
.rvb-first-card small { color: var(--muted); font-size: 0.76rem; line-height: 1.45; }
.rvb-first-card small b { color: var(--text); }

.rvb-cost-bars { display: grid; gap: 14px; margin-top: 16px; }
.rvb-cost-block h4,
.rvb-sensitivity-head h4,
.rvb-deposit-card h4 { margin: 0 0 8px; font-size: 0.92rem; }
.rvb-bar-track { height: 28px; border-radius: 7px; overflow: hidden; background: var(--accent); }
.rvb-bar-stack { display: flex; height: 100%; min-width: 2px; border-radius: 7px; overflow: hidden; transition: width 220ms ease; }
.rvb-bar-seg { display: block; height: 100%; padding: 0; border: 0; cursor: pointer; min-width: 0; }
.rvb-bar-seg:hover,
.rvb-bar-seg:focus-visible { filter: brightness(1.12); outline: 2px solid var(--text); outline-offset: -2px; }
.rvb-cost-legend { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px 12px; margin: 8px 0 0; padding: 0; font-size: 0.78rem; color: var(--muted); }
.rvb-cost-legend li { display: flex; align-items: center; gap: 6px; min-width: 0; }
.rvb-cost-legend li strong { margin-left: auto; color: var(--text); font-weight: 600; white-space: nowrap; }
.rvb-swatch { width: 10px; height: 10px; flex: none; border-radius: 2px; }
.seg-principal { background: #2f7d5f; }
.seg-interest { background: #b34a3c; }
.seg-tax { background: #9b6a1f; }
.seg-maint { background: #6c5b9e; }
.seg-insurance { background: #3b6ea8; }
.seg-fee { background: #7a8499; }
.seg-rent { background: #3b6ea8; }
.rvb-hover { min-height: 1.4em; margin: 8px 0 0; font-size: 0.8rem; color: var(--muted); }
.rvb-table-details { margin-top: 14px; border-top: 1px solid var(--border); }
.rvb-table-details summary { cursor: pointer; padding: 12px 0 4px; font-size: 0.85rem; font-weight: 600; min-height: 44px; }
.rvb-table-details summary:focus-visible { outline: 2px solid var(--highlight); outline-offset: 2px; }
.rvb-table-wrap { max-width: 100%; overflow-x: auto; margin-top: 8px; }
.rvb-table { width: 100%; border-collapse: collapse; font-size: 0.8rem; line-height: 1.45; }
.rvb-table caption { text-align: left; color: var(--muted); font-size: 0.78rem; padding: 0 0 8px; }
.rvb-table th,
.rvb-table td { padding: 8px 7px; border-bottom: 1px solid var(--border); text-align: right; vertical-align: top; }
.rvb-table th:first-child,
.rvb-table td:first-child { text-align: left; }
.rvb-table thead th { font-size: 0.73rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); }
.rvb-table tr.is-total td { border-top: 2px solid var(--border); border-bottom: 0; background: var(--accent); }
.rvb-money-table td:nth-child(2),
.rvb-money-table td:nth-child(3) { font-variant-numeric: tabular-nums; white-space: nowrap; }
.rvb-year-table { min-width: 560px; }

.rvb-timeline-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; margin: 0 0 10px; }
.rvb-range-label { font-size: 0.82rem; font-weight: 600; }
.rvb-range { flex: 1 1 180px; min-width: 120px; accent-color: var(--highlight); }
.rvb-inline-check { margin: 0; white-space: nowrap; }
.rvb-figure { margin: 0; }
.rvb-chart-wrap { padding: 8px 4px; border: 1px solid var(--border); border-radius: 12px; background: var(--card); }
.rvb-chart-wrap:focus-visible { outline: 2px solid var(--highlight); outline-offset: 2px; }
.rvb-chart-wrap[tabindex] { cursor: crosshair; }
.rvb-svg { display: block; width: 100%; height: auto; }
.rvb-grid-line { stroke: var(--border); stroke-width: 1; stroke-dasharray: 3 5; }
.rvb-zero-line { stroke: var(--muted); stroke-width: 1.5; opacity: 0.6; }
.rvb-axis-line { stroke: var(--border); stroke-width: 1.5; }
.rvb-axis-label,
.rvb-axis-title { fill: var(--muted); font: 11px system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.rvb-line { fill: none; stroke-width: 2.6; stroke-linejoin: round; stroke-linecap: round; }
.rvb-line-buy { stroke: var(--highlight); }
.rvb-line-rent { stroke: var(--primary); }
.rvb-dot-buy { fill: var(--highlight); }
.rvb-dot-rent { fill: var(--primary); }
.rvb-dot { stroke: var(--card); stroke-width: 1; }
.rvb-marker { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 3 4; opacity: 0.7; }
.rvb-marker-dot { stroke: var(--card); stroke-width: 2; }
.rvb-tooltip { min-height: 2.6em; margin: 8px 0 0; padding: 8px 10px; border-radius: 8px; background: var(--accent); color: var(--text); font-size: 0.78rem; line-height: 1.45; }
.rvb-cross { margin: 8px 0 0; font-size: 0.82rem; line-height: 1.5; color: var(--muted); }

.rvb-stay-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; }
.rvb-stay-grid button {
  display: grid;
  gap: 3px;
  min-width: 0;
  padding: 10px 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.rvb-stay-grid button:hover,
.rvb-stay-grid button:focus-visible { border-color: var(--highlight); outline: none; }
.rvb-stay-grid button.is-current { border-color: var(--highlight); background: var(--accent); }
.rvb-stay-grid button span { color: var(--muted); font-size: 0.72rem; font-weight: 600; }
.rvb-stay-grid button strong { font-size: 0.86rem; overflow-wrap: anywhere; }
.rvb-stay-grid button small { color: var(--muted); font-size: 0.7rem; line-height: 1.3; }

.rvb-appreciation-card { margin-top: 14px; padding: 13px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--accent); }
.rvb-range-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 12px; margin-bottom: 8px; }
.rvb-range-head .hint { margin: 0; }
.rvb-appreciation-card .rvb-range { width: 100%; }

.rvb-sensitivity-head { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 8px 14px; margin: 18px 0 8px; }
.rvb-sensitivity-head h4 { margin: 0 0 2px; }
.rvb-sensitivity-head .hint { margin: 0; }
.rvb-sensitivity-head .rvb-toggle { margin: 0; }
.rvb-sensitivity-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.rvb-sensitivity-card { display: grid; gap: 4px; min-width: 0; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--card); }
.rvb-sensitivity-card.is-baseline { border-color: var(--highlight); background: var(--accent); }
.rvb-sensitivity-card span { color: var(--muted); font-size: 0.73rem; font-weight: 600; }
.rvb-sensitivity-card strong { font-size: 1rem; overflow-wrap: anywhere; }
.rvb-sensitivity-card small { color: var(--muted); font-size: 0.73rem; }
.rvb-sensitivity-card.is-buy { border-top: 3px solid var(--highlight); }
.rvb-sensitivity-card.is-rent { border-top: 3px solid var(--primary); }
.rvb-sensitivity-card.is-tie { border-top: 3px solid var(--muted); }

.rvb-deposit-card { margin-top: 18px; padding: 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--card); }
.rvb-deposit-row { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(50px, 1fr) auto; align-items: center; gap: 8px; margin-top: 8px; font-size: 0.78rem; }
.rvb-deposit-row > span:first-child { color: var(--muted); }
.rvb-deposit-row strong { font-variant-numeric: tabular-nums; white-space: nowrap; }
.rvb-deposit-track { height: 12px; overflow: hidden; border-radius: 999px; background: var(--accent); }
.rvb-deposit-track span { display: block; height: 100%; width: 0; border-radius: inherit; background: var(--highlight); transition: width 220ms ease; }
.rvb-deposit-row:nth-of-type(3) .rvb-deposit-track span { background: var(--primary); }

.rvb-article { margin-top: 24px; }
.rvb-article h2 { margin-top: 0; }
.rvb-article h3 { font-size: 1.02rem; margin: 22px 0 8px; }
.rvb-article p,
.rvb-article li { max-width: 78ch; line-height: 1.6; }
.rvb-article .formula {
  max-width: 100%;
  margin: 7px 0;
  padding: 8px 10px;
  border-left: 3px solid var(--highlight);
  border-radius: 0 7px 7px 0;
  background: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}
.rvb-example-box { padding: 14px 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--accent); }
.rvb-example-box p { margin: 0 0 10px; }
.rvb-example-box p:last-child { margin-bottom: 0; }
.rvb-sources li { margin-bottom: 8px; }
.rvb-sources a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }

.rvb-fact-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 14px; }
.rvb-fact-list .fact { padding: 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--card); }
.rvb-fact-list .fact h3 { display: flex; gap: 8px; align-items: flex-start; margin: 0 0 6px; font-size: 0.94rem; line-height: 1.35; }
.rvb-fact-list .fact p { margin: 0; font-size: 0.85rem; line-height: 1.55; color: var(--muted); }
.fact-emoji { flex: none; font-size: 1.1rem; }
.rvb-fact-intro { color: var(--muted); font-size: 0.9rem; }

.rvb-page .faq { display: grid; gap: 0; }
.rvb-page .faq details { border-bottom: 1px solid var(--border); }
.rvb-page .faq summary { cursor: pointer; padding: 13px 0; font-weight: 600; line-height: 1.5; min-height: 44px; }
.rvb-page .faq summary:focus-visible { outline: 2px solid var(--highlight); outline-offset: 2px; }
.rvb-page .faq details p { margin: 0 0 14px; color: var(--muted); font-size: 0.9rem; }
.rvb-page .faq details[open] summary { color: var(--primary); }

.rvb-reading { margin-top: 16px; font-size: 0.86rem; line-height: 1.55; }
.rvb-reading a { color: var(--primary); font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.rvb-page .cat-link { margin-top: 14px; }
.rvb-page .cozy-pick-panel { margin-top: 24px; }

/* Existing form controls carry their own focus ring. These are the extra rings this page adds. */
.rvb-page .btn-secondary:focus-visible,
.rvb-page .btn-primary:focus-visible { outline: 2px solid var(--highlight); outline-offset: 2px; }

@media (max-width: 1050px) {
  .rvb-layout { grid-template-columns: minmax(0, 1fr); }
  .rvb-results { margin-top: 4px; }
}

@media (max-width: 760px) {
  .rvb-grid-2 { grid-template-columns: minmax(0, 1fr); }
  .rvb-first-grid { grid-template-columns: minmax(0, 1fr); }
  .rvb-cost-legend { grid-template-columns: minmax(0, 1fr); }
  .rvb-stay-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rvb-stay-grid button:last-child { grid-column: span 2; }
  .rvb-sensitivity-grid { grid-template-columns: minmax(0, 1fr); }
  .rvb-fact-list { grid-template-columns: minmax(0, 1fr); }
  .rvb-deposit-row { grid-template-columns: minmax(0, 1fr) auto; }
  .rvb-deposit-row .rvb-deposit-track { grid-column: 1 / -1; grid-row: 2; }
  .rvb-sensitivity-head .rvb-toggle { width: 100%; }
  .rvb-sensitivity-head .rvb-toggle button { flex: 1 1 auto; }
}

@media (max-width: 480px) {
  .rvb-form-head { flex-direction: column; }
  .rvb-reset { align-self: flex-start; }
  .rvb-hero .value { font-size: 1.65rem; }
  .rvb-first-card { padding: 12px; }
  .rvb-chart-wrap { padding: 4px 2px; }
  .rvb-tooltip { font-size: 0.74rem; }
  .rvb-stay-grid button strong { font-size: 0.8rem; }
  .rvb-sensitivity-card strong { font-size: 0.92rem; }
}

@media (prefers-reduced-motion: reduce) {
  .rvb-bar-stack,
  .rvb-deposit-track span { transition: none; }
}