#roit-calc {
  /* Light theme — matches brief-homepage (warm stone neutrals, slate text,
     emerald accent). Page sits on a subtle stone gray so white cards lift. */
  --bg: #f5f5f4;
  --bg-elev: #f5f5f4;
  --bg-card: #ffffff;
  --bg-card-2: #ece9e6;
  --border: #e7e5e4;
  --border-strong: #d6d3d1;
  --text: #1c1917;
  --text-dim: #57534e;
  /* Muted body tone — lower contrast than --text-dim to preserve hierarchy,
     still passes WCAG AA (~5:1) on the white --bg-card. */
  --text-faint: #6b6662;
  --accent: #1e293b;
  --waste: #dc2626;
  --waste-soft: rgba(220, 38, 38, 0.07);
  --warn: #b45309;
  --warn-soft: rgba(180, 83, 9, 0.09);
  --save: #059669;
  --radius: 10px;
  --radius-sm: 6px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-family: -apple-system, BlinkMacSystemFont, Inter, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

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

#roit-calc .page {
  max-width: 560px;
  margin: 0 auto;
  padding: 48px 20px 64px;
}

#roit-calc header {
  margin-bottom: 40px;
}

#roit-calc .eyebrow {
  color: var(--text-faint);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

#roit-calc h1 {
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

#roit-calc .subhead {
  color: var(--text-dim);
  font-size: 15px;
  margin: 0;
  max-width: 680px;
}

#roit-calc .grid {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(520px, 1.3fr);
  gap: 28px;
  align-items: start;
}

@media (max-width: 980px) {
  #roit-calc .grid { grid-template-columns: 1fr; }
  #roit-calc .page { padding: 32px 20px 60px; }
  #roit-calc h1 { font-size: 26px; }
}

#roit-calc .card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

#roit-calc .card-title {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 600;
  margin: 0 0 22px;
}

/* Inputs */
#roit-calc .field {
  margin-bottom: 22px;
}
#roit-calc .field:last-child { margin-bottom: 0; }

#roit-calc .field-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
  gap: 12px;
}

#roit-calc .field-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

#roit-calc .field-sublabel {
  font-size: 12px;
  color: var(--text-faint);
  margin-top: 2px;
}

#roit-calc .field-value {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  font-weight: 500;
  white-space: nowrap;
}

#roit-calc input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--border-strong);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
#roit-calc input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--text);
  cursor: pointer;
  border: 4px solid var(--bg-card);
  box-shadow: 0 0 0 1px var(--border-strong);
  transition: transform 0.1s ease;
}
#roit-calc input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.12); }
#roit-calc input[type="range"]::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--text);
  cursor: pointer;
  border: 4px solid var(--bg-card);
  box-shadow: 0 0 0 1px var(--border-strong);
}
/* Keyboard focus ring on the slider thumb (outline can't target pseudo-elements,
   so use box-shadow that keeps the existing 1px border ring). */
#roit-calc input[type="range"]:focus-visible::-webkit-slider-thumb {
  box-shadow: 0 0 0 1px var(--border-strong), 0 0 0 4px var(--accent);
}
#roit-calc input[type="range"]:focus-visible::-moz-range-thumb {
  box-shadow: 0 0 0 1px var(--border-strong), 0 0 0 4px var(--accent);
}

#roit-calc select, #roit-calc input[type="number"] {
  width: 100%;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease;
}
#roit-calc select:focus, #roit-calc input[type="number"]:focus { border-color: var(--accent); }
#roit-calc select:focus-visible, #roit-calc input[type="number"]:focus-visible {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 2px var(--accent);
}
#roit-calc select {
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3e%3cpath fill='none' stroke='%2357534e' stroke-width='1.5' d='M3 5l3 3 3-3'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

#roit-calc .custom-price {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
#roit-calc .custom-price label {
  font-size: 12px;
  color: var(--text-dim);
  white-space: nowrap;
}
#roit-calc .custom-price input { flex: 1; }

#roit-calc .advanced-toggle {
  background: none;
  border: none;
  color: var(--text-faint);
  font-size: 12px;
  cursor: pointer;
  padding: 0;
  font-family: inherit;
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.15s ease;
}
#roit-calc .advanced-toggle:hover { color: var(--text-dim); }
#roit-calc .advanced-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
  color: var(--text-dim);
}
#roit-calc .advanced-toggle .arrow {
  transition: transform 0.2s ease;
  display: inline-block;
}
#roit-calc .advanced-toggle.open .arrow { transform: rotate(90deg); }

#roit-calc .advanced-section {
  display: none;
  padding-top: 18px;
  margin-top: 4px;
  border-top: 1px dashed var(--border);
}
#roit-calc .advanced-section.open { display: block; }

#roit-calc .section-divider {
  margin: 26px 0 18px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 600;
}

/* Segmented strategy control */
#roit-calc .strategy-toggle {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 4px;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
}
#roit-calc .strategy-toggle button {
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 8px 4px;
  font-size: 12px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
#roit-calc .strategy-toggle button:hover { color: var(--text); background: rgba(0,0,0,0.04); }
#roit-calc .strategy-toggle button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
#roit-calc .strategy-toggle button.active {
  background: var(--bg-card);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(0,0,0,0.08);
}
#roit-calc .strategy-toggle button.active[data-strategy="raw"] { color: var(--waste); }
#roit-calc .strategy-toggle button.active[data-strategy="md"] { color: var(--warn); }
#roit-calc .strategy-toggle button.active[data-strategy="hybrid"] { color: #c026d3; }
#roit-calc .strategy-toggle button.active[data-strategy="brief"] { color: var(--save); }

/* Maintenance subsection — appears when .md is selected */
#roit-calc .md-maintenance {
  display: none;
  padding: 18px;
  border: 1px solid var(--border);
  background: var(--warn-soft);
  border-radius: var(--radius-sm);
  margin-top: 6px;
}
#roit-calc .md-maintenance.show { display: block; }
#roit-calc .md-maintenance .maint-head {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--warn);
  font-weight: 600;
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}
#roit-calc .md-maintenance .maint-head .dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--warn);
  display: inline-block;
}
#roit-calc .md-maintenance--hybrid {
  border-color: rgba(192, 38, 211, 0.30);
  background: rgba(192, 38, 211, 0.06);
}
#roit-calc .maint-head--hybrid {
  color: #c026d3;
}
#roit-calc .maint-head--hybrid .dot {
  background: #c026d3;
}

/* ----- Results card ----- */
#roit-calc .results-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  position: sticky;
  top: 24px;
}

#roit-calc .section-head {
  padding: 18px 22px 0;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
#roit-calc .section-head h2 {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  font-weight: 600;
}
#roit-calc .section-head .section-sub {
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}

#roit-calc .comparison {
  display: grid;
  border-bottom: 1px solid var(--border);
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
}
/* Stack the 4-col comparison on smaller screens so it stops overflowing. */
@media (max-width: 640px) {
  #roit-calc .comparison {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 430px) {
  #roit-calc .comparison {
    grid-template-columns: 1fr;
  }
}

#roit-calc .col {
  padding: 22px 16px;
  border-right: 1px solid var(--border);
  min-width: 0;
}
#roit-calc .col:last-child { border-right: none; }
#roit-calc .col.active { background: rgba(0,0,0,0.025); }

#roit-calc .col-label {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#roit-calc .col[data-kind="raw"] .col-label { color: var(--waste); }
#roit-calc .col[data-kind="md"] .col-label { color: var(--warn); }
#roit-calc .col[data-kind="md-true"] .col-label { color: var(--waste); }
#roit-calc .col[data-kind="hybrid-true"] .col-label { color: #c026d3; }
#roit-calc .col[data-kind="brief"] .col-label { color: var(--save); }

#roit-calc .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
#roit-calc .col[data-kind="raw"] .dot { background: var(--waste); }
#roit-calc .col[data-kind="md"] .dot { background: var(--warn); }
#roit-calc .col[data-kind="md-true"] .dot { background: var(--waste); }
#roit-calc .col[data-kind="hybrid-true"] .dot { background: #c026d3; }
#roit-calc .col[data-kind="brief"] .dot { background: var(--save); }

#roit-calc .col-cost {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  font-feature-settings: "tnum";
  margin-bottom: 2px;
}
@media (max-width: 1100px) {
  #roit-calc .col-cost { font-size: 19px; }
}

#roit-calc .col-detail {
  font-size: 11px;
  color: var(--text-faint);
  font-family: var(--mono);
  line-height: 1.4;
}

#roit-calc .col-breakdown {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed var(--border);
  display: grid;
  gap: 3px;
}
#roit-calc .breakdown-row {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-dim);
  font-family: var(--mono);
  gap: 6px;
}
#roit-calc .breakdown-row span:last-child {
  color: var(--text);
  white-space: nowrap;
}

#roit-calc .savings-strip {
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
#roit-calc .savings-strip-label {
  font-size: 13px;
  color: var(--text-dim);
}
#roit-calc .savings-strip-value {
  font-size: 22px;
  font-weight: 600;
  color: var(--save);
  letter-spacing: -0.01em;
  font-feature-settings: "tnum";
}

/* Hidden cost (engineer time) section */
#roit-calc .hidden-cost {
  padding: 22px 22px 26px;
  border-bottom: 1px solid var(--border);
}
#roit-calc .hidden-cost-rows {
  margin-top: 14px;
  display: grid;
  gap: 14px;
}
#roit-calc .hidden-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
}
#roit-calc .hidden-row-label {
  font-size: 13px;
  color: var(--text-dim);
}
#roit-calc .hidden-row-value {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-feature-settings: "tnum";
  color: var(--text);
}
#roit-calc .hidden-row.headline {
  /* Anchor the small label to the center of the 36px figure rather than its
     baseline, so it doesn't float against the tall number. */
  align-items: center;
}
#roit-calc .hidden-row.headline .hidden-row-value {
  font-size: 36px;
  font-weight: 700;
  color: var(--waste);
  letter-spacing: -0.02em;
}
#roit-calc .hidden-row.headline .hidden-row-label {
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
}
#roit-calc .hidden-row.subdued .hidden-row-label,
#roit-calc .hidden-row.subdued .hidden-row-value {
  color: var(--text-faint);
  font-size: 12px;
  font-weight: 500;
}

/* Hero block */
#roit-calc .hero-block {
  padding: 36px 28px 38px;
  background: linear-gradient(180deg, rgba(5, 150, 105, 0.07) 0%, rgba(5, 150, 105, 0.0) 100%);
  border-bottom: 1px solid var(--border);
}
#roit-calc .hero-label {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--save);
  font-weight: 600;
  margin-bottom: 12px;
  opacity: 0.9;
}
#roit-calc .hero-amount {
  font-size: 72px;
  font-weight: 700;
  letter-spacing: -0.035em;
  color: var(--save);
  line-height: 1;
  font-feature-settings: "tnum";
}
@media (max-width: 980px) {
  #roit-calc .hero-amount { font-size: 56px; }
}
#roit-calc .hero-sub {
  margin-top: 14px;
  font-size: 14px;
  color: var(--text-dim);
}
#roit-calc .hero-sub strong {
  color: var(--text);
  font-weight: 600;
}
#roit-calc .hero-context {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-faint);
}

/* AI budget breakdown */
#roit-calc .budget-section {
  padding: 22px 22px 24px;
  border-bottom: 1px solid var(--border);
}
#roit-calc .budget-bar-group {
  margin-bottom: 18px;
}
#roit-calc .budget-bar-group:last-of-type {
  margin-bottom: 12px;
}
#roit-calc .budget-bar-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
  gap: 12px;
}
#roit-calc .bar-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}
#roit-calc .bar-title.muted { color: var(--text-dim); }
#roit-calc .bar-amount {
  font-size: 12px;
  color: var(--text-faint);
  font-family: var(--mono);
}
#roit-calc .bar-amount strong {
  color: var(--save);
  font-weight: 600;
}
#roit-calc .budget-bar {
  display: flex;
  height: 28px;
  border-radius: 6px;
  overflow: hidden;
  background: var(--bg-elev);
  border: 1px solid var(--border);
}
#roit-calc .seg {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  color: rgba(0, 0, 0, 0.9);
  font-feature-settings: "tnum";
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
#roit-calc .seg.bug      { background: #ff6b6b; }
#roit-calc .seg.rework   { background: #ff9558; }
#roit-calc .seg.review   { background: #ffb454; }
#roit-calc .seg.shipped  { background: #4ade80; }

#roit-calc .budget-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  margin-top: 14px;
  font-size: 11px;
  color: var(--text-dim);
}
#roit-calc .budget-legend > div {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
#roit-calc .legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}

#roit-calc .budget-takeaway {
  margin-top: 20px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: rgba(5, 150, 105, 0.06);
  border: 1px solid rgba(5, 150, 105, 0.22);
  font-size: 13px;
  line-height: 1.55;
  color: var(--text);
}
#roit-calc .budget-takeaway strong {
  color: var(--save);
  font-weight: 600;
  font-feature-settings: "tnum";
}
#roit-calc .budget-takeaway .strike {
  color: var(--text-dim);
  text-decoration: line-through;
  text-decoration-color: rgba(220, 38, 38, 0.6);
}
#roit-calc .budget-attribution {
  margin-top: 12px;
  font-size: 10.5px;
  color: var(--text-faint);
  font-style: italic;
}

#roit-calc .actions {
  padding: 18px 22px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

#roit-calc .btn {
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s ease, border-color 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
#roit-calc .btn:hover {
  background: var(--bg-card-2);
  border-color: var(--text-faint);
}
#roit-calc .btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
#roit-calc .btn.copied {
  color: var(--save);
  border-color: rgba(5, 150, 105, 0.45);
}

/* Top disclaimer banner */
#roit-calc .top-banner {
  margin: -12px 0 32px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
#roit-calc .top-banner a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  white-space: nowrap;
}
#roit-calc .top-banner a:hover { text-decoration: underline; }
#roit-calc .top-banner a:focus-visible,
#roit-calc a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

/* Confidence badges */
#roit-calc .conf {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 10px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  vertical-align: middle;
  line-height: 1.4;
  border: 1px solid transparent;
}
#roit-calc .conf .conf-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}
#roit-calc .conf.calc {
  background: rgba(5, 150, 105, 0.10);
  color: var(--save);
  border-color: rgba(5, 150, 105, 0.24);
}
#roit-calc .conf.calc .conf-dot { background: var(--save); }
#roit-calc .conf.industry {
  background: rgba(180, 83, 9, 0.10);
  color: var(--warn);
  border-color: rgba(180, 83, 9, 0.24);
}
#roit-calc .conf.industry .conf-dot { background: var(--warn); }
/* Brief is the hero/positive brand here — use the --accent slate, not the --waste
   red reserved for wasted spend, so the projection badge doesn't read as "bad." */
#roit-calc .conf.proj {
  background: rgba(30, 41, 59, 0.07);
  color: var(--accent);
  border-color: rgba(30, 41, 59, 0.18);
}
#roit-calc .conf.proj .conf-dot { background: var(--accent); }

/* Assumptions panel (full-width, below grid) */
#roit-calc .assumptions-card {
  margin-top: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
#roit-calc .assumptions-toggle {
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  padding: 18px 24px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  font-family: inherit;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  transition: background 0.15s ease;
}
#roit-calc .assumptions-toggle:hover { background: var(--bg-card-2); }
#roit-calc .assumptions-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
#roit-calc .assumptions-toggle .arrow {
  transition: transform 0.2s ease;
  color: var(--text-dim);
  font-size: 16px;
}
#roit-calc .assumptions-toggle.open .arrow { transform: rotate(90deg); }
#roit-calc .assumptions-toggle .toggle-cta {
  color: var(--accent);
  font-weight: 500;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

#roit-calc .assumptions-body {
  display: none;
  padding: 4px 24px 24px;
}
#roit-calc .assumptions-body.open { display: block; }

#roit-calc .assumptions-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}
#roit-calc .assumptions-table th {
  text-align: left;
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-strong);
}
#roit-calc .assumptions-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
  vertical-align: top;
  line-height: 1.45;
}
#roit-calc .assumptions-table tr:last-child td { border-bottom: none; }
#roit-calc .assumptions-table .a-name { color: var(--text); font-weight: 500; }
#roit-calc .assumptions-table .a-value {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  white-space: nowrap;
}
#roit-calc .assumptions-table .a-src { font-size: 11px; }
#roit-calc .assumptions-table .a-src.input    { color: var(--save); }
#roit-calc .assumptions-table .a-src.industry { color: var(--warn); }
#roit-calc .assumptions-table .a-src.proj     { color: var(--waste); }
#roit-calc .assumptions-table .a-src.fixed    { color: var(--text-faint); }
#roit-calc .assumptions-table .a-notes { font-size: 11.5px; color: var(--text-dim); }

#roit-calc .assumptions-footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-faint);
  font-style: italic;
  line-height: 1.5;
}
#roit-calc .assumptions-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 12px 0 16px;
}

/* Methodology block (bottom) */
#roit-calc .methodology {
  margin-top: 28px;
  padding: 20px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  font-size: 12px;
  color: var(--text-faint);
  line-height: 1.65;
}
#roit-calc .methodology strong { color: var(--text-dim); font-weight: 600; }

@media (max-width: 700px) {
  #roit-calc .assumptions-table { font-size: 12px; }
  #roit-calc .assumptions-table th:nth-child(4),
  #roit-calc .assumptions-table td:nth-child(4) { display: none; }
}