:root {
  --color-bg: #F2F0E6;
  --color-surface: #FFFFFF;
  --color-ink: #1F2A24;
  --color-ink-soft: #55645C;
  --color-line: #DEDACB;
  --color-line-strong: #C7C2AE;
  --color-accent: #B87A22;
  --color-accent-dark: #8C5C17;
  --color-accent-soft: #F0DDB6;
  --color-dusk-start: #1B2E35;
  --color-dusk-mid: #4A6B52;
  --color-dusk-end: #A9C99B;
  --color-positive: #3C6E52;
  --color-negative: #E8291A;
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
  --radius: 6px;
  --shadow-card: 0 1px 2px rgba(27, 30, 20, 0.06), 0 8px 24px -12px rgba(27, 30, 20, 0.18);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ---------- HERO ---------- */
.hero-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: #FBF7EE;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  margin-bottom: 16px;
}

.hero-logo-mark {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--color-dusk-start), var(--color-dusk-end));
  border: 1px solid var(--color-accent-soft);
  display: inline-block;
  flex-shrink: 0;
}

.hero {
  position: relative;
  background: linear-gradient(115deg, var(--color-dusk-start) 0%, var(--color-dusk-mid) 55%, var(--color-dusk-end) 100%);
  color: #FBF7EE;
  padding: 30px 32px 40px;
  overflow: hidden;
}

.hero-inner {
  max-width: 780px;
  margin: 0 auto;
}

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  color: var(--color-accent-soft);
  margin: 0 0 14px;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(32px, 5vw, 48px);
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}

.subhead {
  font-size: 16px;
  color: #E8E2D2;
  max-width: 56ch;
  margin: 0;
}

.horizon-line {
  height: 3px;
  width: 100%;
  margin-top: 40px;
  background: linear-gradient(90deg, rgba(169,201,155,0) 0%, var(--color-dusk-end) 45%, var(--color-accent-soft) 55%, rgba(169,201,155,0) 100%);
}

/* ---------- NAV ---------- */
.section-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line-strong);
  padding: 10px 24px;
}

.section-nav a {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  text-decoration: none;
  color: var(--color-ink-soft);
  padding: 8px 12px;
  border-radius: var(--radius);
  transition: background 0.15s ease, color 0.15s ease;
}

.section-nav a:hover,
.section-nav a:focus-visible {
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
}

/* ---------- LAYOUT ---------- */
main {
  max-width: 920px;
  margin: 0 auto;
  padding: 8px 24px 24px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 10px;
  box-shadow: var(--shadow-card);
  padding: 32px 32px 36px;
  margin-bottom: 28px;
  scroll-margin-top: 64px;
}

.disclaimer-card {
  padding: 18px 24px;
  border-left: 4px solid var(--color-accent);
  background: #FBF3E2;
}

.disclaimer-card p {
  margin: 0;
  font-size: 14px;
  color: var(--color-ink);
  line-height: 1.5;
}

.card-head {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 26px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--color-accent-soft);
}

.card-head .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent);
  border: 1px solid var(--color-accent-soft);
  background: #FBF3E2;
  border-radius: 999px;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.card-head h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  margin: 0 0 4px;
}

.card-desc {
  margin: 0;
  font-size: 14px;
  color: var(--color-ink-soft);
}

#overview p,
#overview > div {
  font-size: 14.5px;
  color: var(--color-ink);
  line-height: 1.6;
}

#overview ul {
  margin: 12px 0 0;
  padding-left: 20px;
}

#overview li {
  margin-bottom: 10px;
  font-size: 14.5px;
  color: var(--color-ink);
  line-height: 1.6;
}

#overview li::marker {
  color: var(--color-accent);
}

/* ---------- FIELDS ---------- */
.field-grid {
  display: grid;
  gap: 20px;
  margin-bottom: 20px;
}

.field-grid:last-child {
  margin-bottom: 0;
}

.card > .field {
  margin-bottom: 20px;
}

.card > .field > select,
.card > .field > input[type="text"],
.card > .field > input[type="number"] {
  max-width: 320px;
}

.field-grid.two-col { grid-template-columns: repeat(2, 1fr); }
.field-grid.three-col { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 640px) {
  .field-grid.two-col,
  .field-grid.three-col { grid-template-columns: 1fr; }
}

.field label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--color-ink);
}

.field input[type="text"],
.field input[type="number"],
.field select,
.data-table input[type="text"],
.data-table select {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 9px 11px;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius);
  background: #FDFCF8;
  color: var(--color-ink);
}

.field input:focus,
.field select:focus,
.data-table input:focus,
.data-table select:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
  border-color: var(--color-accent);
}

.readonly-display {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 9px 11px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: #F3F1E9;
  color: var(--color-ink-soft);
  box-sizing: border-box;
}

.print-value {
  display: none;
}

.field-checkbox {
  display: flex;
  align-items: center;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 22px;
}

.checkbox-label input {
  width: 17px;
  height: 17px;
  accent-color: var(--color-accent);
}

.checkbox-row-right {
  display: flex;
  justify-content: flex-end;
  margin: 4px 0 20px;
}

.table-scroll-tall + .checkbox-row-right {
  margin-top: 24px;
}

.checkbox-row-right .checkbox-label {
  margin-top: 0;
}

.field-caption {
  margin: 7px 0 0;
  font-size: 12.5px;
  font-family: var(--font-mono);
  color: var(--color-ink-soft);
}

/* ---------- INFO ICON / POPUP ---------- */
.info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid var(--color-accent);
  background: transparent;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}

.info-icon:hover,
.info-icon:focus-visible {
  background: var(--color-accent);
  color: #FFF;
}

.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(27, 33, 26, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.popup-overlay[hidden] {
  display: none;
}

.popup-box {
  background: var(--color-surface);
  max-width: 420px;
  width: 100%;
  border-radius: 10px;
  padding: 24px;
  box-shadow: 0 20px 50px -12px rgba(0,0,0,0.35);
  border-top: 4px solid var(--color-accent);
}

.popup-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  margin: 0 0 10px;
  color: var(--color-ink);
}

.popup-title:empty {
  display: none;
}

.popup-text {
  font-size: 14.5px;
  color: var(--color-ink);
  margin: 0 0 18px;
  line-height: 1.5;
}

.popup-text ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.popup-text li {
  margin-bottom: 6px;
}

/* ---------- TABLES ---------- */
.table-scroll + .field-grid {
  margin-top: 22px;
}

.table-label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  margin: 8px 0 12px;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: 8px;
}

.table-scroll-tall {
  max-height: 420px;
  overflow-y: auto;
}

.data-table {
  border-collapse: collapse;
  width: 100%;
  min-width: 640px;
  font-size: 13.5px;
}

.data-table thead th {
  position: sticky;
  top: 0;
  background: #FBF3E2;
  text-align: left;
  padding: 10px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent-dark);
  border-bottom: 1px solid var(--color-line-strong);
  white-space: nowrap;
}

.data-table td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--color-line);
  white-space: nowrap;
}

.data-table tbody tr:nth-child(odd) { background: #FCFBF7; }

.data-table td.readonly {
  font-family: var(--font-mono);
  color: var(--color-ink-soft);
  background: #F3F1E9;
}

.data-table td.negative {
  color: var(--color-negative);
  font-weight: 600;
}

.data-table tbody tr.row-shortfall td {
  font-weight: 700;
}

.data-table tbody tr.row-sale td {
  font-style: italic;
  color: var(--color-negative);
}

.data-table input,
.data-table select {
  min-width: 88px;
}

.data-table tfoot td {
  border-top: 2px solid var(--color-line-strong);
  border-bottom: none;
  background: #FBF3E2;
  font-family: var(--font-mono);
}

.tax-detail-table td:first-child {
  color: var(--color-ink-soft);
}

.tax-detail-table td:last-child {
  font-family: var(--font-mono);
  text-align: right;
  white-space: nowrap;
}

/* ---------- RESULTS ---------- */
.result-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

@media (max-width: 900px) {
  .result-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 780px) {
  .result-grid { grid-template-columns: repeat(2, 1fr); }
}

.result-tile {
  background: #FBF9F3;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.result-tile-final {
  background: var(--color-ink);
  border-color: var(--color-ink);
}

.result-tile-final .result-label,
.result-tile-final .result-value {
  color: #FBF7EE;
}

.result-tile-final.result-tile-loss {
  background: var(--color-negative);
  border-color: var(--color-negative);
}

.outlook-message {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 4px 0 28px;
  padding: 16px 20px;
  border-radius: 8px;
  border-left: 4px solid var(--color-line-strong);
  background: #FBF9F3;
  font-size: 14px;
  line-height: 1.55;
  color: var(--color-ink);
}

.outlook-text {
  flex: 1;
}

.outlook-icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 700;
}

.outlook-icon:empty {
  display: none;
}

/* positive: Invest Assets stay positive through to age 120 */
.outlook-message.outlook-positive {
  border-left-color: var(--color-positive);
  background: #E9F3EA;
}

.outlook-message.outlook-positive .outlook-icon {
  background: var(--color-positive);
  color: #FFFFFF;
}

/* after: money runs out, but after life expectancy */
.outlook-message.outlook-after {
  border-left-color: var(--color-ink-soft);
  background: #ECEAE4;
}

.outlook-message.outlook-after .outlook-icon {
  background: var(--color-ink-soft);
  color: #FFFFFF;
}

/* before: money runs out before life expectancy - the most serious case */
.outlook-message.outlook-before {
  border-left-color: var(--color-negative);
  background: #FBE4E0;
}

.outlook-message.outlook-before .outlook-icon {
  background: var(--color-negative);
  color: #FFFFFF;
}

.result-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-ink-soft);
  display: flex;
  align-items: center;
  gap: 6px;
}

.result-label-stacked {
  display: block;
}

.result-value {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 600;
  color: var(--color-ink);
}

/* ---------- CHART ---------- */
.chart-wrap { margin-bottom: 28px; }

.chart-legend {
  display: flex;
  gap: 20px;
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--color-ink-soft);
}

.legend-item { display: flex; align-items: center; gap: 6px; }

.legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  display: inline-block;
}

.swatch-invest-assets { background: var(--color-accent); }
.swatch-property { background: var(--color-dusk-start); }

.chart-container {
  border: 1px solid var(--color-line);
  border-radius: 8px;
  background: #FDFCF8;
  padding: 8px;
}

.chart-svg { width: 100%; height: auto; display: block; }

.chart-grid { stroke: var(--color-line); stroke-width: 1; }
.chart-zero-line { stroke: var(--color-line-strong); stroke-width: 1.5; stroke-dasharray: 4 3; }
.chart-axis-label { font-family: var(--font-mono); font-size: 10px; fill: var(--color-ink-soft); }
.chart-axis-title { font-family: var(--font-body); font-size: 12px; font-weight: 600; fill: var(--color-ink); }
.chart-line { stroke-width: 2.5; }
.chart-line-invest-assets { stroke: var(--color-accent); }
.chart-line-property { stroke: var(--color-dusk-start); }
.chart-life-line { stroke: #8A8A82; stroke-width: 3; }
.chart-zero-cross-line { stroke: var(--color-negative); stroke-width: 3; }

.legend-swatch-line { width: 14px; height: 3px; display: inline-block; }
.swatch-life-exp { background: #8A8A82; }
.swatch-zero-cross { background: var(--color-negative); }

/* ---------- BUTTONS ---------- */
.actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
}

.actions-note {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--color-ink-soft);
}

.btn {
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  padding: 11px 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.08s ease, background 0.15s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--color-accent);
  color: #FFFFFF;
}

.btn-primary:hover { background: var(--color-accent-dark); }

.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-line-strong);
}

.btn-secondary:hover { background: var(--color-accent-soft); }

/* ---------- FOOTER ---------- */
.page-footer {
  max-width: 920px;
  margin: 0 auto;
  padding: 8px 24px 48px;
  color: var(--color-ink-soft);
  font-size: 12.5px;
}

.page-footer p {
  margin: 0 0 6px;
}

/* ---------- FAQ ---------- */
.faq-section {
  max-width: 920px;
  margin: 8px auto 32px;
  padding: 0 24px;
}

.faq-section h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 26px;
  margin: 0 0 20px;
  color: var(--color-ink);
}

.faq-section details {
  border: 1px solid var(--color-line);
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 10px;
  background: var(--color-surface);
}

.faq-section details[open] {
  border-color: var(--color-line-strong);
}

.faq-section summary {
  font-weight: 600;
  font-size: 14.5px;
  color: var(--color-ink);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.faq-section summary::-webkit-details-marker {
  display: none;
}

.faq-section summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.faq-section details[open] summary::after {
  content: '\2212';
}

.faq-section p {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--color-ink-soft);
  margin: 12px 0 0;
}

/* ---------- AD SLOTS ---------- */
.sponsor-panel-wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 24px;
}

.sponsor-panel-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 90px;
  border: 1px dashed var(--color-line-strong);
  border-radius: 8px;
  background: #FBF9F3;
  color: var(--color-ink-soft);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 24px 0;
}

/* ---------- SUPPORT / TIP JAR ---------- */
.support-card {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 24px 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  text-align: center;
}

.support-text {
  font-size: 13.5px;
  color: var(--color-ink-soft);
  margin: 0;
}

.btn-kofi {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #FF5E5B;
  color: #FFFFFF;
  text-decoration: none;
}

.btn-kofi:hover {
  background: #E5504D;
}

/* ---------- FULL DISCLAIMER SECTION ---------- */
.disclaimer-section {
  max-width: 920px;
  margin: 24px auto 0;
  padding: 24px;
  border-top: 1px solid var(--color-line);
}

.disclaimer-section h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  margin: 0 0 12px;
  color: var(--color-ink);
}

.disclaimer-section p {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--color-ink-soft);
  margin: 0 0 10px;
}

.disclaimer-section p:last-child {
  margin-bottom: 0;
}

/* ---------- PRINT ---------- */
@media print {
  .section-nav, .actions-row, .popup-overlay, .sponsor-panel-wrap, .support-card { display: none !important; }
  .card { box-shadow: none; break-inside: avoid; }
  body { background: #fff; }

  .info-icon {
    display: none !important;
  }

  .table-scroll {
    overflow: visible;
    border: none;
  }

  .table-scroll-tall {
    max-height: none;
    overflow: visible;
  }

  .data-table {
    min-width: 0;
    width: 100%;
    font-size: 8px;
    table-layout: fixed;
  }

  .data-table td {
    padding: 2px 3px;
    white-space: normal;
    word-break: break-word;
  }

  .data-table thead th {
    position: static;
    padding: 2px 3px;
    white-space: normal;
    word-break: break-word;
  }

  /* form controls can't wrap their own text and clip anything too long to fit -
     hide them for print and show the plain-text stand-ins created by
     preparePrintValues() instead, which sit in normal flow and wrap freely */
  .field input,
  .field select,
  .data-table input,
  .data-table select {
    display: none !important;
  }

  .print-value {
    display: inline !important;
    white-space: normal;
    word-break: break-word;
    font-family: var(--font-mono);
  }

  .readonly-display {
    border: none;
    background: transparent;
    padding: 2px 0;
    white-space: normal;
    word-break: break-word;
  }
}