:root {
  color-scheme: light;
  --calc-primary: #0154de;
  --calc-primary-hover: #0047c0;
  --calc-primary-active: #00399b;
  --calc-primary-soft: #e8f0ff;
  --calc-on-primary: #ffffff;
  --calc-link: var(--calc-primary);
  --calc-petrol-950: #102a56;
  --calc-petrol-800: var(--calc-primary);
  --calc-petrol-700: var(--calc-primary-hover);
  --calc-green-600: var(--calc-primary);
  --calc-green-100: var(--calc-primary-soft);
  --calc-ink: #17233b;
  --calc-heading: #102a56;
  --calc-muted: #52637c;
  --calc-line: #d7e0ef;
  --calc-control-border: #7d91b2;
  --calc-surface: #ffffff;
  --calc-panel: #f8faff;
  --calc-control: #ffffff;
  --calc-soft: #eef3fc;
  --calc-bg: #f5f8ff;
  --calc-focus: #a85d00;
  --calc-danger: #9f2d2d;
  --calc-danger-bg: #fbe9e7;
  --calc-danger-border: #c97872;
  --calc-success: #174f3c;
  --calc-success-bg: #e1f2e9;
  --calc-success-border: #6cab8d;
  --calc-warn: #735510;
  --calc-warn-bg: #fff4cf;
  --calc-warn-border: #c79627;
  --calc-caution: #70400f;
  --calc-caution-bg: #fff0df;
  --calc-caution-border: #c66a1b;
  --calc-info-border: #8caee5;
  --calc-radius: 18px;
  --calc-shadow: 0 18px 48px rgb(16 42 86 / 12%);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --calc-primary: #2d66d2;
  --calc-primary-hover: #2458bb;
  --calc-primary-active: #1c499e;
  --calc-primary-soft: #162e59;
  --calc-on-primary: #ffffff;
  --calc-link: #76a5ff;
  --calc-petrol-950: #e6efff;
  --calc-petrol-800: var(--calc-primary);
  --calc-petrol-700: var(--calc-primary-hover);
  --calc-green-600: #76a5ff;
  --calc-green-100: var(--calc-primary-soft);
  --calc-ink: #edf3ff;
  --calc-heading: #ffffff;
  --calc-muted: #adbbd0;
  --calc-line: #30425e;
  --calc-control-border: #7184a4;
  --calc-surface: #101a2c;
  --calc-panel: #141f33;
  --calc-control: #0e1828;
  --calc-soft: #182b4d;
  --calc-bg: #091220;
  --calc-focus: #ffc15d;
  --calc-danger: #ffb6b0;
  --calc-danger-bg: #442221;
  --calc-danger-border: #ae5f5a;
  --calc-success: #a7e4c4;
  --calc-success-bg: #173a2c;
  --calc-success-border: #4c9675;
  --calc-warn: #ffdc83;
  --calc-warn-bg: #3c3218;
  --calc-warn-border: #a88331;
  --calc-caution: #ffc78d;
  --calc-caution-bg: #412a16;
  --calc-caution-border: #b86b26;
  --calc-info-border: #496fa8;
  --calc-shadow: 0 20px 46px rgb(0 0 0 / 34%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --calc-primary: #2d66d2;
    --calc-primary-hover: #2458bb;
    --calc-primary-active: #1c499e;
    --calc-primary-soft: #162e59;
    --calc-on-primary: #ffffff;
    --calc-link: #76a5ff;
    --calc-petrol-950: #e6efff;
    --calc-petrol-800: var(--calc-primary);
    --calc-petrol-700: var(--calc-primary-hover);
    --calc-green-600: #76a5ff;
    --calc-green-100: var(--calc-primary-soft);
    --calc-ink: #edf3ff;
    --calc-heading: #ffffff;
    --calc-muted: #adbbd0;
    --calc-line: #30425e;
    --calc-control-border: #7184a4;
    --calc-surface: #101a2c;
    --calc-panel: #141f33;
    --calc-control: #0e1828;
    --calc-soft: #182b4d;
    --calc-bg: #091220;
    --calc-focus: #ffc15d;
    --calc-danger: #ffb6b0;
    --calc-danger-bg: #442221;
    --calc-danger-border: #ae5f5a;
    --calc-success: #a7e4c4;
    --calc-success-bg: #173a2c;
    --calc-success-border: #4c9675;
    --calc-warn: #ffdc83;
    --calc-warn-bg: #3c3218;
    --calc-warn-border: #a88331;
    --calc-caution: #ffc78d;
    --calc-caution-bg: #412a16;
    --calc-caution-border: #b86b26;
    --calc-info-border: #496fa8;
    --calc-shadow: 0 20px 46px rgb(0 0 0 / 34%);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--calc-bg);
  scroll-behavior: smooth;
}

body.calculator-page {
  min-width: 0;
  margin: 0;
  background:
    radial-gradient(circle at 12% 0%, rgb(1 84 222 / 11%), transparent 32rem),
    var(--calc-bg);
  color: var(--calc-ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

.calculator-topbar {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid var(--calc-line);
  background: color-mix(in srgb, var(--calc-surface) 96%, transparent);
  color: var(--calc-ink);
  box-shadow: 0 3px 18px rgb(16 42 86 / 9%);
  backdrop-filter: saturate(150%) blur(14px);
}

.calculator-topbar__inner {
  width: min(1180px, calc(100% - 32px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.calculator-brand,
.calculator-back {
  text-decoration: none;
}

.calculator-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.calculator-brand__logo {
  display: block;
  width: 150px;
  max-width: 45vw;
  height: auto;
  aspect-ratio: 3 / 1;
  border-radius: 10px;
  object-fit: contain;
}

.calculator-brand small {
  color: var(--calc-muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0;
}

.calculator-shell a {
  color: var(--calc-link);
  text-underline-offset: 0.16em;
}

.calculator-shell a:hover {
  text-decoration-thickness: 0.12em;
}

.calculator-back {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 8px 13px;
  border: 1px solid var(--calc-link);
  border-radius: 12px;
  background: var(--calc-surface);
  color: var(--calc-link);
  font-size: 0.92rem;
  font-weight: 700;
}

.calculator-back:hover {
  border-color: var(--calc-link);
  background: var(--calc-primary-soft);
  color: var(--calc-link);
}

.calculator-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 34px auto 56px;
  padding: clamp(20px, 4vw, 44px);
  overflow: hidden;
  border: 1px solid var(--calc-line);
  border-radius: 24px;
  background: color-mix(in srgb, var(--calc-surface) 97%, transparent);
  box-shadow: var(--calc-shadow);
}

.calculator-shell h1,
.calculator-shell h2,
.calculator-shell h3 {
  color: var(--calc-heading);
  line-height: 1.22;
}

.calculator-shell h1 {
  max-width: 850px;
  margin: 0 0 24px;
  font-size: clamp(1.65rem, 4vw, 2.35rem);
  letter-spacing: -0.035em;
}

.calculator-shell h3 {
  margin-top: 30px;
  font-size: 1.15rem;
}

.archive-warning,
.unvalidated-warning {
  margin: 0 0 24px;
  padding: 15px 17px;
  border: 1px solid var(--calc-warn-border);
  border-radius: 18px;
  background: var(--calc-warn-bg);
  color: var(--calc-warn);
}

.archive-warning strong,
.unvalidated-warning strong {
  display: block;
}

.unvalidated-warning strong {
  margin-bottom: 2px;
}

.method-status {
  margin: 0 0 20px;
  padding-left: 12px;
  border-left: 3px solid var(--calc-warn-border);
  color: var(--calc-muted);
  font-size: 0.92rem;
}

.method-status strong {
  color: var(--calc-warn);
}

.calculator-shell form {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: clamp(16px, 3vw, 28px);
  border: 1px solid var(--calc-line);
  border-radius: var(--calc-radius);
  background: var(--calc-panel);
  box-shadow: none;
}

.calculator-shell label {
  color: var(--calc-ink);
}

.calculator-shell input,
.calculator-shell select,
.calculator-shell textarea {
  min-height: 46px;
  max-width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--calc-control-border);
  border-radius: 12px;
  background: var(--calc-control);
  color: var(--calc-ink);
  font: inherit;
  transition: border-color 140ms ease, box-shadow 140ms ease, background-color 140ms ease;
}

.calculator-shell :is(input, select, textarea):hover:not(:disabled) {
  border-color: var(--calc-primary);
}

.calculator-shell :is(input, select, textarea):disabled {
  border-color: var(--calc-line);
  background: var(--calc-soft);
  color: var(--calc-muted);
  cursor: not-allowed;
  opacity: 1;
}

.calculator-shell :is(input, select, textarea):user-invalid {
  border-color: var(--calc-danger-border);
}

.calculator-shell input[type="radio"],
.calculator-shell input[type="checkbox"] {
  width: 1.15rem;
  min-height: 1.15rem;
  margin: 0 0.45rem 0 0;
  padding: 0;
  accent-color: var(--calc-primary);
  vertical-align: -0.16rem;
}

.calculator-shell button,
.calculator-actions button {
  min-height: 46px;
  padding: 10px 18px;
  border: 1px solid var(--calc-primary);
  border-radius: 13px;
  background: var(--calc-primary);
  color: var(--calc-on-primary);
  font: inherit;
  font-weight: 750;
  cursor: pointer;
  transition: border-color 140ms ease, background-color 140ms ease, box-shadow 140ms ease;
}

.calculator-shell button:hover,
.calculator-actions button:hover {
  border-color: var(--calc-primary-hover);
  background: var(--calc-primary-hover);
}

.calculator-shell button:active,
.calculator-actions button:active {
  border-color: var(--calc-primary-active);
  background: var(--calc-primary-active);
}

.calculator-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.calculator-actions .secondary {
  border-color: var(--calc-link);
  background: var(--calc-control);
  color: var(--calc-link);
}

.calculator-actions .secondary:hover {
  border-color: var(--calc-link);
  background: var(--calc-primary-soft);
  color: var(--calc-link);
}

.calculator-shell :is(a, button, input, select, textarea, [tabindex]):focus-visible,
.calculator-topbar :is(a, button):focus-visible {
  outline: 3px solid var(--calc-focus);
  outline-offset: 3px;
}

.calculator-topbar :is(a, button):focus-visible {
  outline-color: var(--calc-focus);
}

.calculator-table-wrap {
  width: 100%;
  margin: 0 0 20px;
  overflow-x: auto;
  border: 1px solid var(--calc-line);
  border-radius: 18px;
  background: var(--calc-control);
  -webkit-overflow-scrolling: touch;
}

.calculator-table-wrap table {
  width: 100%;
  min-width: 680px;
  margin: 0;
  border-collapse: collapse;
}

.calculator-table-wrap caption {
  padding: 16px;
  color: var(--calc-heading);
  font-size: 1.25rem;
  text-align: left;
}

.calculator-shell th,
.calculator-shell td {
  padding: 13px 15px;
  border: 1px solid var(--calc-line);
  text-align: left;
  vertical-align: top;
}

.calculator-shell thead th {
  background: var(--calc-primary);
  color: var(--calc-on-primary);
}

.calculator-shell tbody th {
  background: var(--calc-soft);
  color: var(--calc-heading);
}

.calculator-shell td.option,
.calculator-shell #cdTable tbody tr {
  cursor: pointer;
}

.calculator-shell .resection-choice {
  display: flex;
  align-items: flex-start;
  width: 100%;
  min-height: 44px;
  cursor: pointer;
}

.calculator-shell .resection-choice input {
  flex: 0 0 auto;
  margin-top: 0.12rem;
}

.calculator-shell td.not-applicable {
  background: var(--calc-soft);
  color: var(--calc-muted);
  font-style: italic;
}

.calculator-shell td.option:hover,
.calculator-shell #cdTable tbody tr:hover {
  background: var(--calc-primary-soft);
}

.calculator-shell td:not(.option) > label:has(input[type="radio"]),
.calculator-shell td:not(.option) > label:has(input[type="checkbox"]) {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  margin: 2px 8px 2px 0;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: 12px;
  cursor: pointer;
}

.calculator-shell td:not(.option) > label:has(input:checked) {
  border-color: var(--calc-primary) !important;
  background: var(--calc-primary-soft) !important;
  color: var(--calc-heading) !important;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--calc-primary) 18%, transparent);
}

.calculator-shell .info-box,
.calculator-shell .legend {
  margin: 0 0 22px;
  padding: 16px 18px;
  border: 1px solid var(--calc-info-border);
  border-radius: 18px;
  background: var(--calc-primary-soft);
  color: var(--calc-ink);
}

.calculator-shell .result {
  min-height: 58px;
  margin-top: 20px;
  padding: 16px 18px;
  border: 1px solid var(--calc-primary);
  border-radius: 18px;
  background: var(--calc-primary-soft);
  color: var(--calc-ink);
  font-weight: 750;
}

.calculator-shell .result small,
.calculator-shell .result-note {
  display: block;
  margin-top: 6px;
  font-size: 0.86rem;
  font-weight: 500;
}

.calculator-shell .result.is-stale,
.calculator-shell .result.is-pending {
  border-color: var(--calc-warn-border);
  background: var(--calc-warn-bg);
  color: var(--calc-warn);
}

.calculator-shell .result.is-error {
  border-color: var(--calc-danger-border);
  background: var(--calc-danger-bg);
  color: var(--calc-danger);
}

.calculator-shell .low,
.calculator-shell .low-risk,
.calculator-shell .grade-a,
.calculator-shell .result.i,
.calculator-shell .selected-i,
.calculator-shell .selected-resectable,
.calculator-shell .result.zone-1 {
  border-color: var(--calc-success-border) !important;
  background-color: var(--calc-success-bg) !important;
  color: var(--calc-success) !important;
}

.calculator-shell .moderate,
.calculator-shell .moderate-risk,
.calculator-shell .grade-b,
.calculator-shell .result.ii,
.calculator-shell .result.iii,
.calculator-shell .selected-ii,
.calculator-shell .selected-iii,
.calculator-shell .selected-borderline,
.calculator-shell .result.zone-2 {
  border-color: var(--calc-warn-border) !important;
  background-color: var(--calc-warn-bg) !important;
  color: var(--calc-warn) !important;
}

.calculator-shell .result.zone-3 {
  border-color: var(--calc-caution-border) !important;
  background-color: var(--calc-caution-bg) !important;
  color: var(--calc-caution) !important;
}

.calculator-shell .high,
.calculator-shell .high-risk,
.calculator-shell .grade-c,
.calculator-shell .result.iv,
.calculator-shell .result.v,
.calculator-shell .selected-iv,
.calculator-shell .selected-v,
.calculator-shell .selected-unresectable,
.calculator-shell .result.zone-4 {
  border-color: var(--calc-danger-border) !important;
  background-color: var(--calc-danger-bg) !important;
  color: var(--calc-danger) !important;
}

/* Normalize legacy inline calculator colors to the shared blue system. */
.calculator-shell legend,
.calculator-shell .calculator-form legend {
  color: var(--calc-heading) !important;
}

.calculator-shell .calculator-form fieldset,
.calculator-shell .question,
.calculator-shell .choice-list label,
.calculator-shell .field-card,
.calculator-shell .apache-criteria,
.calculator-shell .apache-breakdown div {
  border-color: var(--calc-line) !important;
  background: var(--calc-panel) !important;
  color: var(--calc-ink) !important;
}

.calculator-shell .calculator-form fieldset,
.calculator-shell .question,
.calculator-shell .field-card,
.calculator-shell .apache-criteria,
.calculator-shell .apache-breakdown div {
  border-radius: 18px !important;
}

.calculator-shell .choice-list label:hover {
  border-color: var(--calc-primary) !important;
  background: var(--calc-primary-soft) !important;
}

.calculator-shell .choice-list label:has(input:checked) {
  border-color: var(--calc-primary) !important;
  background: var(--calc-primary-soft) !important;
  color: var(--calc-heading) !important;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--calc-primary) 18%, transparent);
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 8px;
  left: 8px;
  padding: 10px 14px;
  transform: translateY(-150%);
  border-radius: 12px;
  background: var(--calc-surface);
  color: var(--calc-heading);
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
}

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

@media (max-width: 720px) {
  .calculator-topbar__inner,
  .calculator-shell {
    width: min(100% - 20px, 1120px);
  }

  .calculator-topbar__inner {
    min-height: 64px;
  }

  .calculator-brand__logo {
    width: 132px;
  }

  .calculator-brand small {
    display: none;
  }

  .calculator-back {
    padding-inline: 11px;
    font-size: 0.85rem;
  }

  .calculator-shell {
    margin-top: 18px;
    padding: 18px 14px 24px;
    border-radius: 20px;
  }

  .calculator-shell form {
    padding: 14px;
  }

  .calculator-table-wrap table {
    min-width: 620px;
  }
}

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

@media print {
  @page {
    margin: 14mm;
  }

  html,
  body.calculator-page {
    background: #fff !important;
  }

  .skip-link,
  .calculator-topbar,
  .calculator-actions {
    display: none !important;
  }

  .calculator-shell {
    width: 100%;
    margin: 0;
    padding: 0;
    overflow: visible;
    border: 0;
    box-shadow: none;
  }

  .calculator-table-wrap {
    overflow: visible;
    border-color: #777;
  }

  .calculator-table-wrap table {
    min-width: 0;
  }

  tr,
  .result,
  .info-box,
  .archive-warning,
  .unvalidated-warning {
    break-inside: avoid;
  }
}