:root {
  --color-navy: #17324d;
  --color-ocean: #2f6fa3;
  --color-teal: #2fae9b;
  --color-seaglass: #eaf6f3;
  --color-cream: #f7f3e8;
  --color-warm-white: #fbfcfa;
  --color-gold: #d9a441;
  --color-coral: #f28c6b;
  --color-text: #1b2a3a;
  --color-muted: #5e6c78;
  --color-border: #d8e1e8;
  --color-card: #ffffff;
  --color-page: #f8faf8;
  /* Accessible companions: fresh accents are not small-text colors. */
  --color-ocean-dark: #235983;
  --color-teal-dark: #157568;
  --color-blue-soft: #edf4fa;
  --color-amber-dark: #855d17;
  --color-control-border: #728b9a;
  --color-error: #a83f32;
  --color-error-soft: #fff0eb;
  --color-inverse-border: rgb(251 252 250 / 30%);
  --color-focus: var(--color-ocean);
  --shadow: 0 6px 22px rgb(23 50 77 / 5%);
  --shadow-card: 0 2px 8px rgb(23 50 77 / 4%);
  --shadow-button: 0 3px 10px rgb(47 111 163 / 16%);
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --radius: 18px;
}

* { box-sizing: border-box; }
h1, h2, h3, h4, p, li, a, strong, label { overflow-wrap: anywhere; }
html { font-size: 18px; scroll-behavior: smooth; overflow-x: hidden; }
body {
  min-width: 0;
  margin: 0;
  overflow-x: hidden;
  color: var(--color-text);
  background: var(--color-page);
  font: 18px/1.6 var(--font-sans);
}
button, input { font: inherit; }
button, a, input, summary { -webkit-tap-highlight-color: transparent; }
a { color: var(--color-ocean); text-underline-offset: .16em; text-decoration-thickness: .08em; }
a:hover { color: var(--color-ocean-dark); }
[hidden] { display: none !important; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
  padding: 0;
}

.site-header {
  padding: .8rem max(1rem, calc((100% - 1120px) / 2));
  border-bottom: 1px solid var(--color-border);
  background: var(--color-warm-white);
}
.brand {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: .75rem;
  color: var(--color-text);
  text-decoration: none;
}
.brand-mark {
  display: grid;
  width: 2.65rem;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background: var(--color-ocean);
  color: var(--color-card);
  font-family: var(--font-sans);
  font-weight: 800;
}
.brand strong { display: block; font: 800 1.08rem/1.15 var(--font-sans); }
.brand small { display: block; margin-top: .12rem; color: var(--color-muted); font-size: .9rem; }

main {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
  padding-bottom: 4rem;
}
h1, h2 {
  margin-top: 0;
  color: var(--color-text);
  font-family: var(--font-serif);
  letter-spacing: -.025em;
}
h1 {
  max-width: 850px;
  margin-bottom: .85rem;
  font-size: clamp(2.2rem, 5.8vw, 4.25rem);
  line-height: 1.08;
}
.hero-subheadline {
  margin: -.15rem 0 .55rem;
  color: var(--color-ocean);
  font-size: clamp(1.3rem, 3.5vw, 1.8rem);
  font-weight: 750;
  letter-spacing: -.015em;
}
h2 { font-size: clamp(1.8rem, 4.5vw, 2.8rem); line-height: 1.08; }
h3, h4 {
  margin-top: 0;
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.25;
}
h3 { font-size: clamp(1.55rem, 4vw, 2.15rem); }
h4 { font-size: 1.12rem; }

.hero { max-width: 900px; padding: clamp(1.8rem, 5vw, 3.5rem) 0 2.2rem; }
.hero h1 { color: var(--color-navy); letter-spacing: -.025em; text-wrap: balance; }
.hero > .eyebrow::before {
  display: inline-block;
  width: 1.5rem;
  height: 3px;
  margin-right: .55rem;
  vertical-align: middle;
  background: var(--color-gold);
  content: "";
}
.eyebrow, .step-count {
  margin: 0 0 .45rem;
  color: var(--color-ocean);
  font-size: .78rem;
  font-weight: 850;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.dek {
  max-width: 720px;
  margin: 0 0 1.25rem;
  color: var(--color-muted);
  font-size: clamp(1.08rem, 2.5vw, 1.32rem);
  line-height: 1.5;
}
.disclaimer, .final-disclaimer {
  max-width: 820px;
  color: var(--color-muted);
  font-size: .9rem;
}
.hero .disclaimer { margin: .85rem 0 0; }

.primary-button, .secondary-button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  border: 2px solid transparent;
  border-radius: 12px;
  padding: .75rem 1.2rem;
  font-weight: 800;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}
.primary-button {
  background: var(--color-ocean);
  color: var(--color-card);
  box-shadow: var(--shadow-button);
}
.primary-button:hover { background: var(--color-ocean-dark); color: var(--color-card); }
.primary-button, .secondary-button { transition: background-color .15s ease, border-color .15s ease; }
.secondary-button {
  border-color: var(--color-ocean);
  background: var(--color-card);
  color: var(--color-ocean);
}
.secondary-button:hover { border-color: var(--color-ocean-dark); background: var(--color-blue-soft); color: var(--color-ocean-dark); }
.hero-cta { min-width: min(100%, 290px); }
.primary-button.inline { width: auto; }

input:focus-visible,
button:focus-visible,
summary:focus-visible,
a:focus-visible,
[tabindex="-1"]:focus-visible {
  outline: 4px solid var(--color-focus);
  outline-offset: 3px;
}

.calculator-shell,
.result-section,
.results-hero,
.lower-content {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-card);
}
.calculator-shell {
  max-width: 880px;
  margin-inline: auto;
  overflow: clip;
  box-shadow: var(--shadow);
}
.calculator-top {
  display: grid;
  gap: 1rem;
  padding: clamp(1.15rem, 4vw, 1.65rem);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-warm-white);
}
.calculator-top h2 { margin: 0; font: 750 clamp(1.35rem, 4vw, 1.65rem)/1.25 var(--font-sans); }
.progress-copy {
  display: grid;
  gap: .4rem;
  color: var(--color-muted);
  font-size: .9rem;
  font-weight: 700;
}
.progress-copy > span:first-child { color: var(--color-text); }
progress {
  width: 100%;
  height: .55rem;
  overflow: hidden;
  border: 0;
  border-radius: 20rem;
  accent-color: var(--color-ocean);
}
progress::-webkit-progress-bar { background: var(--color-border); }
progress::-webkit-progress-value { background: var(--color-ocean); }
progress::-moz-progress-bar { background: var(--color-ocean); }

form { padding: clamp(1rem, 4vw, 2rem); }
.running-indicator {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .75rem;
  margin-bottom: clamp(1.2rem, 4vw, 2rem);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-control-border);
  border-radius: 14px;
  padding: .8rem 1rem;
  background: var(--color-warm-white);
}
.running-indicator .status-icon {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  background: var(--color-blue-soft);
  color: var(--color-text);
  font-weight: 900;
}
.running-indicator > span:last-child { display: grid; gap: .08rem; min-width: 0; }
.running-indicator small {
  color: var(--color-muted);
  font-size: .9rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.running-indicator strong { color: var(--color-text); font-size: 1rem; }
.running-indicator #running-copy { color: var(--color-muted); font-size: .9rem; }
.running-indicator[data-state="earlier"] { border-left-color: var(--color-gold); background: var(--color-cream); }
.running-indicator[data-state="balanced"] { border-left-color: var(--color-ocean); background: var(--color-blue-soft); }
.running-indicator[data-state="later"] { border-left-color: var(--color-teal); background: var(--color-seaglass); }
.running-indicator[data-state="review"] { border-left-color: var(--color-gold); background: var(--color-cream); }

.step-panel { max-width: 720px; margin-inline: auto; animation: step-in .2s ease-out; }
.step-panel h3 { max-width: 680px; margin-bottom: .6rem; }
.step-intro { max-width: 650px; margin: 0 0 1.35rem; color: var(--color-muted); }
.control-group { min-width: 0; margin: 0; border: 0; padding: 0; }
.choice-grid { display: grid; gap: .65rem; }
.age-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.benefit-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.three-up { grid-template-columns: 1fr; }
.two-up { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stacked { grid-template-columns: 1fr; }

.choice-card { position: relative; min-width: 0; cursor: pointer; }
.choice-card input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}
.choice-card > span {
  position: relative;
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-control-border);
  border-radius: 16px;
  padding: .65rem .8rem;
  background: var(--color-card);
  color: var(--color-text);
  font-weight: 780;
  line-height: 1.3;
  text-align: center;
}
.choice-card.text-choice > span { justify-content: flex-start; padding-left: 2.65rem; text-align: left; }
.choice-indicator {
  position: absolute;
  top: 50%;
  left: .7rem;
  display: grid;
  width: 1.25rem;
  height: 1.25rem;
  place-items: center;
  border: 2px solid var(--color-control-border);
  border-radius: 50%;
  background: var(--color-card);
  color: transparent;
  font-size: .9rem;
  transform: translateY(-50%);
}
.choice-card:not(.text-choice) .choice-indicator { left: .5rem; }
.choice-card:not(.text-choice) > span { padding-left: 1.9rem; }
.choice-card:hover > span { border-color: var(--color-ocean); }
.choice-card > span { transition: background-color .15s ease, border-color .15s ease; }
.choice-card input:checked + span {
  border-color: var(--color-teal-dark);
  background: var(--color-seaglass);
  color: var(--color-text);
}
.choice-card input:checked + span .choice-indicator {
  border-color: var(--color-teal-dark);
  background: var(--color-teal-dark);
  color: var(--color-card);
}
.choice-card input:focus-visible + span { outline: 4px solid var(--color-focus); outline-offset: 3px; }

.conditional-field {
  margin-top: 1.15rem;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 1rem;
  background: var(--color-warm-white);
}
.compact-field { max-width: 360px; }
.compact-field label, .family-details legend { display: block; color: var(--color-text); font-weight: 780; }
.compact-field > input,
.money-input {
  width: min(100%, 300px);
  margin-top: .5rem;
}
.compact-field > input,
.money-input input {
  min-height: 54px;
  border: 2px solid var(--color-control-border);
  border-radius: 10px;
  padding: .65rem .8rem;
  background: var(--color-card);
  color: var(--color-text);
  font-size: 1.08rem;
}
.compact-field > input { width: min(100%, 14rem); }
.money-input {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  overflow: hidden;
  border: 2px solid var(--color-control-border);
  border-radius: 10px;
  background: var(--color-card);
}
.money-input > span { padding-left: .85rem; color: var(--color-muted); font-weight: 800; }
.money-input input { width: 100%; margin: 0; border: 0; }
.money-input:focus-within { outline: 4px solid var(--color-focus); outline-offset: 3px; }
.money-input input:focus-visible { outline: 0; }
input[type="number"] { appearance: textfield; -moz-appearance: textfield; }
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button { margin: 0; -webkit-appearance: none; }

.help { margin: .65rem 0 0; color: var(--color-muted); font-size: .9rem; }
.step-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: .7rem;
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--color-border);
}
.step-actions.end { grid-template-columns: 1fr; }
.step-actions .primary-button, .step-actions .secondary-button { width: 100%; }

.check-grid { display: grid; gap: .65rem; margin-top: .8rem; }
.check-card {
  display: flex;
  min-height: 54px;
  align-items: flex-start;
  gap: .7rem;
  border: 2px solid var(--color-control-border);
  border-radius: 12px;
  padding: .72rem .8rem;
  background: var(--color-card);
  color: var(--color-text);
  cursor: pointer;
}
.check-card input {
  flex: 0 0 auto;
  width: 1.3rem;
  height: 1.3rem;
  margin: .13rem 0 0;
  accent-color: var(--color-ocean);
}
.check-card:has(input:checked) {
  border-color: var(--color-teal-dark);
  background: var(--color-seaglass);
  color: var(--color-text);
}
.check-card:has(input:focus-visible) { outline: 4px solid var(--color-focus); outline-offset: 3px; }

.impact-panel {
  margin-top: 1.2rem;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-ocean);
  border-radius: 14px;
  padding: 1rem;
  background: var(--color-blue-soft);
  animation: impact-in .2s ease-out;
}
.impact-panel[data-state="earlier"] { border-left-color: var(--color-gold); background: var(--color-cream); }
.impact-panel[data-state="balanced"] { border-left-color: var(--color-ocean); background: var(--color-blue-soft); }
.impact-panel[data-state="later"] { border-left-color: var(--color-teal); background: var(--color-seaglass); }
.impact-panel[data-state="caution"],
.impact-panel[data-state="review"] { border-left-color: var(--color-gold); background: var(--color-cream); }
.impact-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .4rem .8rem;
}
.impact-heading strong {
  color: var(--color-muted);
  font-size: .9rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.impact-state {
  color: var(--color-text);
  font-size: .9rem;
  font-weight: 850;
}
.impact-panel[data-state="earlier"] .impact-state,
.impact-panel[data-state="caution"] .impact-state,
.impact-panel[data-state="review"] .impact-state { color: var(--color-amber-dark); }
.impact-panel[data-state="balanced"] .impact-state { color: var(--color-ocean); }
.impact-panel[data-state="later"] .impact-state { color: var(--color-teal-dark); }
.impact-state::before { margin-right: .35rem; font-weight: 900; }
.impact-panel[data-state="earlier"] .impact-state::before { content: "←"; }
.impact-panel[data-state="balanced"] .impact-state::before { content: "↔"; }
.impact-panel[data-state="later"] .impact-state::before { content: "→"; }
.impact-panel[data-state="caution"] .impact-state::before,
.impact-panel[data-state="review"] .impact-state::before { content: "!"; }
.impact-copy { max-width: 650px; margin: .55rem 0 0; color: var(--color-muted); font-size: .9rem; }

.notice { border-radius: 12px; padding: .85rem 1rem; }
.notice.error {
  max-width: 720px;
  margin: 1rem auto 0;
  border: 1px solid var(--color-coral);
  background: var(--color-error-soft);
  color: var(--color-error);
  font-weight: 700;
}
.notice.warning, .warning-section { background: var(--color-cream); }
.notice.verify { margin-top: 1rem; border: 1px solid var(--color-gold); background: var(--color-cream); color: var(--color-text); }
.planning-note {
  max-width: 650px;
  margin-top: 1rem;
  border: 1px solid var(--color-border);
  background: var(--color-blue-soft);
  color: var(--color-muted);
}
.birthday-clarification { max-width: 650px; }
.birthday-clarification legend { color: var(--color-text); font-weight: 780; }

.results { display: grid; gap: 1.25rem; margin-top: 2rem; }
.results-hero {
  display: grid;
  gap: 1.25rem;
  padding: clamp(1.35rem, 4vw, 2.35rem);
  border-color: var(--color-navy);
  background: var(--color-navy);
  background-image: linear-gradient(115deg, var(--color-navy), var(--color-ocean-dark));
  color: var(--color-card);
  box-shadow: var(--shadow);
  --color-focus: var(--color-warm-white);
}
.results-hero .eyebrow { color: var(--color-seaglass); }
.results-hero h2 { margin-bottom: .65rem; color: var(--color-card); }
.results-hero p { color: var(--color-warm-white); }
.results-hero .result-context-note,
.results-hero .family-result-note {
  max-width: 760px;
  margin-top: 1rem;
  border: 1px solid var(--color-inverse-border);
  border-left: 3px solid var(--color-gold);
  border-radius: 12px;
  padding: .85rem 1rem;
  background: var(--color-seaglass);
  color: var(--color-text);
}
.family-result-note strong { display: block; margin-bottom: .2rem; }
.results-hero .result-context-note p, .results-hero .family-result-note p { margin: 0; color: var(--color-text); }
.why-block {
  max-width: 760px;
  margin-top: 1.25rem;
  border-top: 1px solid var(--color-inverse-border);
  padding-top: 1rem;
}
.why-block h3 { margin-bottom: .55rem; color: var(--color-card); font-size: 1.05rem; }
.why-block li::marker { color: var(--color-gold); }
.why-block ul { display: grid; gap: .45rem; margin: 0; padding-left: 1.25rem; color: var(--color-warm-white); }
.results-hero .secondary-button { align-self: start; justify-self: start; }
.results-hero > div { min-width: 0; }

.result-section { padding: clamp(1.2rem, 4vw, 2rem); box-shadow: var(--shadow); }
.section-heading > p:last-child { max-width: 720px; color: var(--color-muted); }
.section-heading h3, .range-heading h3 { margin-bottom: .7rem; color: var(--color-navy); }
.scenario-grid { display: grid; gap: .8rem; }
.scenario-card {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: 15px;
  padding: 1.05rem;
  background: var(--color-card);
  box-shadow: var(--shadow-card);
}
.scenario-card.is-leader { border: 2px solid var(--color-teal-dark); background: var(--color-seaglass); }
.scenario-card h4 { margin-bottom: .35rem; }
.leader-tag {
  display: inline-block;
  margin-bottom: .65rem;
  border-radius: 30px;
  padding: .25rem .6rem;
  background: var(--color-seaglass);
  color: var(--color-teal-dark);
  font-size: .9rem;
  font-weight: 850;
  text-transform: uppercase;
}
.leader-tag::before {
  display: inline-block;
  width: .4rem;
  height: .4rem;
  margin-right: .4rem;
  border-radius: 50%;
  background: var(--color-gold);
  content: "";
}
.monthly { margin: .75rem 0 .35rem; color: var(--color-navy); font: 800 clamp(1.8rem, 5vw, 2.35rem)/1.15 var(--font-sans); font-variant-numeric: tabular-nums; }
.monthly span, .annual { color: var(--color-muted); font: 500 .9rem/1.5 var(--font-sans); }
.cumulative { margin: 1rem 0 0; border-top: 1px solid var(--color-border); padding-top: .8rem; color: var(--color-muted); }
.cumulative strong { display: block; color: var(--color-text); font: 750 1.35rem/1.3 var(--font-sans); font-variant-numeric: tabular-nums; }

.planning-control { background: var(--color-warm-white); }
.range-heading { display: grid; gap: .8rem; }
.range-heading output {
  justify-self: start;
  min-width: 3.6rem;
  border-radius: 10px;
  padding: .4rem .7rem;
  background: var(--color-ocean);
  color: var(--color-card);
  font: 800 1.3rem/1.2 var(--font-sans); font-variant-numeric: tabular-nums;
  text-align: center;
}
/* Keep native active/inactive tracks, keyboard controls, and high-contrast adaptation. */
input[type="range"] { width: 100%; min-height: 48px; margin: .8rem 0 0; accent-color: var(--color-ocean); color-scheme: light; cursor: pointer; }
.range-scale { display: flex; justify-content: space-between; color: var(--color-muted); font-size: .9rem; }
.planning-leader { margin: 1rem 0 0; border-left: 4px solid var(--color-gold); padding-left: .9rem; color: var(--color-muted); font-weight: 700; }
.break-even-grid { display: grid; gap: .8rem; }
.break-even-card {
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  min-width: 0;
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-teal);
  border-radius: 16px;
  padding: 1rem;
  background: var(--color-card);
  box-shadow: var(--shadow-card);
}
.break-even-card h4 { margin: 0; font-size: 1rem; }
.break-even-summary, .break-even-timeline { color: var(--color-muted); }
.break-even-summary { margin: .65rem 0; font-size: .94rem; }
.break-even-metric {
  margin: 1rem 0;
  border-radius: 12px;
  padding: .9rem;
  background: var(--color-seaglass);
}
.break-even-metric span {
  display: block;
  margin-bottom: .3rem;
  color: var(--color-teal-dark);
  font-size: .9rem;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.break-even-metric strong {
  display: block;
  color: var(--color-text);
  font: 800 clamp(1.55rem, 4vw, 1.85rem)/1.2 var(--font-sans); font-variant-numeric: tabular-nums;
}
.break-even-timeline { margin: 0; font-size: .9rem; }
.break-even-card:nth-child(2) .break-even-metric { background: var(--color-blue-soft); }
.warning-section { border-color: var(--color-gold); }
.check-list { display: grid; gap: .65rem; padding-left: 1.25rem; }
.final-disclaimer { padding: .5rem 1rem; }

.lower-content {
  max-width: 880px;
  margin: 1.25rem auto 0;
  padding: clamp(1.2rem, 4vw, 1.7rem);
  box-shadow: none;
}
.lower-content h2 { margin-bottom: .7rem; font-size: clamp(1.45rem, 4vw, 1.9rem); }
.lower-content p:last-child { margin-bottom: 0; color: var(--color-muted); }
.faq details { border-top: 1px solid var(--color-border); padding: .9rem 0; }
.faq details:last-child { border-bottom: 1px solid var(--color-border); }
.faq summary { min-height: 48px; cursor: pointer; font-weight: 780; }
.faq details p { color: var(--color-muted); }
.sources { max-width: 880px; margin: 1rem auto 0; padding: 1rem; color: var(--color-muted); }
.sources h2 { margin-bottom: .5rem; font: 800 1rem/1.3 var(--font-sans); }
.sources ul { display: grid; gap: .3rem; padding-left: 1.2rem; font-size: .9rem; }
.sources p { font-size: .9rem; }

footer {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: 1.5rem max(1rem, calc((100% - 1120px) / 2));
  border-top: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-muted);
  font-size: .9rem;
}
footer span:first-child { color: var(--color-text); font: 800 1.1rem/1.3 var(--font-sans); }

@keyframes step-in {
  from { opacity: 0; transform: translateX(.35rem); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes impact-in {
  from { opacity: 0; transform: translateY(-.2rem); }
  to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 480px) {
  .age-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .benefit-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .step-actions { grid-template-columns: auto minmax(180px, 1fr); }
  .step-actions.end { grid-template-columns: minmax(180px, 320px); justify-content: end; }
  .step-actions .primary-button, .step-actions .secondary-button { width: auto; }
}

@media (min-width: 640px) {
  .calculator-top { grid-template-columns: 1fr minmax(230px, 310px); align-items: center; }
  .age-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .three-up { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .check-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .scenario-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .range-heading { grid-template-columns: minmax(0, 1fr) auto; align-items: end; }
  footer { flex-direction: row; justify-content: space-between; }
}

@media (min-width: 900px) {
  .results-hero { grid-template-columns: minmax(0, 1fr) auto; align-items: start; }
  .scenario-grid, .break-even-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 360px) {
  main { width: min(100% - 1rem, 1120px); }
  .site-header { padding-inline: .75rem; }
  .brand small { display: none; }
  form { padding: .8rem; }
  .calculator-top { padding: 1rem; }
  .running-indicator { padding: .7rem; }
  .age-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .benefit-grid { grid-template-columns: 1fr; }
  .choice-card > span { padding-inline: .55rem; }
  .choice-card:not(.text-choice) > span { padding-left: 1.9rem; }
  .hero-subheadline { letter-spacing: 0; }
  .results-hero .secondary-button { width: 100%; }
  .break-even-metric { padding: .75rem; }
  .results-hero, .result-section { padding: 1rem; }
}

@media (prefers-contrast: more) {
  :root { --color-border: var(--color-muted); --color-control-border: var(--color-text); }
  .choice-card input:checked + span, .check-card:has(input:checked) { border-width: 3px; }
}

@media (forced-colors: active) {
  .results-hero { background-image: none; border-color: CanvasText; }
  .choice-card input:focus-visible + span, .check-card:has(input:focus-visible) { outline-color: Highlight; }
  .choice-indicator { forced-color-adjust: auto; }
  .choice-card input:checked + span, .check-card:has(input:checked) { outline: 3px solid SelectedItem; }
  .choice-card input:checked + span .choice-indicator { forced-color-adjust: none; border-color: SelectedItem; background: SelectedItem; color: SelectedItemText; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}