/* ==========================================================================
   03-components §§1–17 — Shared component core
   ========================================================================== */

/* 03-components §1 Buttons */
.btn,
.copy-btn {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: var(--r-md);
  cursor: pointer;
  display: inline-flex;
  font: 600 14px/20px var(--font-ui);
  gap: 8px;
  height: 40px;
  justify-content: center;
  padding: 0 16px;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease, transform 150ms ease;
}
.btn:hover,
.copy-btn:hover { text-decoration: none; }
.btn:active,
.copy-btn:active { transform: scale(0.98); }
.btn:focus-visible,
.copy-btn:focus-visible,
.text-action:focus-visible { outline: 3px solid var(--focus-ring); outline-offset: 2px; }
.btn:disabled,
.copy-btn:disabled { cursor: not-allowed; opacity: 0.55; }
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--clinical-green-dark); color: var(--on-primary); }
.btn-secondary { background: var(--surface-card); border: 1px solid var(--border-subtle); color: var(--ink); }
.btn-secondary:hover { background: var(--surface-low); border-color: var(--border-strong); color: var(--ink); }
.btn-quiet { color: var(--secondary); }
.btn-quiet:hover { background: var(--surface-mid); }
.btn-danger { border: 1px solid var(--danger); color: var(--danger); }
.btn-danger:hover,
.btn-danger-quiet:hover { background: var(--danger-bg); color: var(--danger); }
.btn-danger-quiet { color: var(--danger); }
.btn-sm { font: 700 11px/16px var(--font-ui); height: 32px; letter-spacing: 0.05em; padding: 0 12px; text-transform: uppercase; }
.btn-icon { height: 40px; padding: 0; width: 40px; }
.text-action { color: var(--accent-blue); font: 700 11px/16px var(--font-ui); letter-spacing: 0.05em; text-transform: uppercase; }
.text-action:hover { text-decoration: underline; }

/* 03-components §2 Form fields and input grids */
.field label,
.grid > div > label,
.all-tools-toolbar label {
  color: var(--ink-muted);
  display: block;
  font: 700 11px/16px var(--font-ui);
  letter-spacing: 0.05em;
  margin-bottom: 4px;
  text-transform: uppercase;
}
.field input,
.field select,
.grid input,
.grid select,
.all-tools-toolbar input {
  background-color: var(--surface-low);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  color: var(--ink);
  font: 400 14px/20px var(--font-ui);
  height: 40px;
  padding: 0 12px;
  width: 100%;
}
.field input:focus,
.field select:focus,
.grid input:focus,
.grid select:focus,
.all-tools-toolbar input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent-blue) 25%, transparent);
  outline: 0;
}
input::placeholder { color: var(--ink-faint); }
input[type="number"] { font-variant-numeric: tabular-nums; text-align: right; }
select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='m7 10 5 5 5-5'/%3E%3C/svg%3E");
  background-position: right 10px center;
  background-repeat: no-repeat;
  padding-right: 32px;
}
.grid { gap: 16px; }
.field-cluster { background: var(--surface-low); border-radius: var(--r-lg); padding: 16px; }
.field-cluster input,
.field-cluster select { background-color: var(--surface-card); }
.unit-box {
  align-items: center;
  background: var(--surface-mid);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  display: flex;
  font: 500 13px/20px var(--font-mono);
  font-variant-numeric: tabular-nums;
  min-height: 40px;
  padding: 0 12px;
}

/* 03-components §3 Card and card header */
.page > section {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  margin-bottom: 24px;
  padding: 24px;
}
.card-header {
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 12px;
}
.card-header h2 {
  color: var(--ink);
  flex: 1;
  font: 700 12px/16px var(--font-ui);
  letter-spacing: 0.05em;
  margin: 0;
  text-transform: uppercase;
}
.card-header-actions { align-items: center; display: flex; gap: 8px; margin-left: auto; }
.icon-chip {
  align-items: center;
  background: var(--surface-low);
  border-radius: var(--r-md);
  color: var(--ink);
  display: inline-flex;
  flex: 0 0 32px;
  height: 32px;
  justify-content: center;
}
.icon-chip .icon { height: 18px; width: 18px; }
.icon-chip-primary { background: var(--primary-container); color: var(--on-primary-container); }
.icon-chip-secondary { background: var(--secondary-container); color: var(--on-secondary-container); }
.icon-chip-tertiary { background: var(--tertiary-container); color: var(--on-tertiary-container); }
.card-subhead {
  color: var(--ink-muted);
  font: 700 11px/16px var(--font-ui);
  letter-spacing: 0.05em;
  margin: 24px 0 12px;
  text-transform: uppercase;
}

/* 03-components §4 Stat tiles */
.stat-row { display: grid; gap: 12px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.stat { background: var(--surface-low); border-radius: var(--r-lg); padding: 16px; }
.stat .num { color: var(--ink); font: 700 24px/32px var(--font-ui); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.stat .lbl { color: var(--ink-muted); font: 700 11px/16px var(--font-ui); letter-spacing: 0.05em; text-transform: uppercase; }
.stat-hero { grid-column: 1 / -1; text-align: center; }

/* 03-components §5 Nutritional totals */
.totals-card { background: var(--primary-tint); border-color: var(--primary-container); }
.totals-card .stat { align-items: center; background: var(--surface-card); display: flex; justify-content: space-between; }

/* 03-components §6 Detail list */
.detail-list { margin-top: 16px; }
.detail-line { align-items: baseline; border-bottom: 1px solid var(--border-subtle); display: flex; gap: 16px; justify-content: space-between; padding: 8px 0; }
.detail-line:last-child { border-bottom: 0; }
.detail-line > :last-child { font: 600 13px/20px var(--font-mono); font-variant-numeric: tabular-nums; text-align: right; }

/* 03-components §7 Readout and light summary */
.readout-section { overflow: hidden; padding: 0; }
.readout-header { align-items: center; background: var(--readout-bg); display: flex; justify-content: space-between; padding: 12px 16px; }
.readout-header h2 { color: var(--readout-accent); font: 700 11px/16px var(--font-ui); letter-spacing: 0.05em; margin: 0; text-transform: uppercase; }
pre.readout { background: var(--readout-bg); color: var(--readout-ink); font: 500 13px/20px var(--font-mono); margin: 0; min-height: 96px; padding: 16px; white-space: pre-wrap; }
.readout-section .copy-btn { background: transparent; color: var(--readout-accent); }
.readout-section .copy-btn:hover { background: color-mix(in srgb, var(--readout-accent) 15%, transparent); }
.dw-summary-box { align-items: center; background: var(--surface-low); border-radius: var(--r-lg); display: flex; gap: 12px; justify-content: space-between; padding: 12px 16px; }
.dw-summary-box .copy-btn { background: var(--surface-card); border: 1px solid var(--border-subtle); color: var(--ink); flex-shrink: 0; font: 700 11px/16px var(--font-ui); height: 32px; letter-spacing: 0.05em; padding: 0 12px; text-transform: uppercase; }

/* redesign2 §6 .export-card (dashed-border variant of .dw-summary-box) */
.dw-summary-box.export-card { border: 1.5px dashed var(--border-strong); flex-direction: column; align-items: stretch; gap: 8px; }
.export-card-header { align-items: center; color: var(--ink-muted); display: flex; gap: 8px; }
.export-card-header .icon { height: 16px; width: 16px; }
.export-card-body { align-items: center; display: flex; gap: 12px; justify-content: space-between; }

/* redesign2 §10 .source-card (citation footers) */
.source-card { background: var(--surface-low); border-radius: var(--r-lg); margin-top: 16px; padding: 16px; }
.source-card-header { align-items: center; color: var(--ink-muted); display: flex; gap: 8px; margin-bottom: 8px; }
.source-card-header .icon-chip { flex: 0 0 24px; height: 24px; }
.source-card-header .icon-chip .icon { height: 14px; width: 14px; }
.source-card .footnote { margin: 0; }

/* 03-components §8 Data tables */
.table-wrap,
.table-scroll { border: 1px solid var(--border-subtle); border-radius: var(--r-lg); overflow-x: auto; }
.table-wrap .ref-table,
.table-scroll .ref-table { border: 0; }
.ref-table { border-collapse: collapse; width: 100%; }
/* `border: 0` first because the legacy-layer rule boxes all four sides; setting
   only border-bottom here would leave its verticals to render a full grid. */
.ref-table th { background: var(--surface-low); border: 0; border-bottom: 2px solid var(--border-strong); color: var(--ink-muted); font: 700 11px/16px var(--font-ui); letter-spacing: 0.05em; padding: 12px 16px; position: sticky; text-align: left; text-transform: uppercase; top: 0; }
.ref-table td { border: 0; border-bottom: 1px solid var(--border-subtle); font: 400 14px/20px var(--font-ui); padding: 12px 16px; }
.ref-table tbody tr:last-child td { border-bottom: 0; }
.ref-table .num,
.ref-table td:not(:first-child) { font-variant-numeric: tabular-nums; text-align: right; }
.table-dense th,
.table-dense td { padding: 8px 12px; }

/* 03-components §9 Chips */
.chip-success,
.chip-warning,
.chip-danger,
.chip-info,
.chip-neutral,
.chip-outline {
  align-items: center;
  border-radius: var(--r-full);
  display: inline-flex;
  font: 700 11px/16px var(--font-ui);
  gap: 4px;
  letter-spacing: 0.05em;
  padding: 2px 10px;
  text-transform: uppercase;
}
.chip-success { background: var(--success-bg); color: var(--success); }
.chip-warning { background: var(--warning-bg); color: var(--warning); }
.chip-danger { background: var(--danger-bg); color: var(--on-danger-bg); }
.chip-info { background: var(--info-bg); color: var(--accent-blue); }
.chip-neutral { background: var(--secondary-container); color: var(--on-secondary-container); }
.chip-outline { border: 1px solid var(--border-subtle); color: var(--ink-muted); }

/* 03-components §§10–12 Segmented, tabs, and switches */
/* `border: 0` cancels the underline the legacy-layer `.lib-tabs` rule draws for
   the pre-redesign tab strip; it would otherwise sit under the pill switcher. */
.segmented,
.lib-tabs { background: var(--surface-mid); border: 0; border-radius: var(--r-md); display: inline-flex; gap: 4px; padding: 4px; }
.segmented > *,
.lib-tabs > * { background: transparent; border: 0; border-radius: calc(var(--r-md) - 2px); color: var(--ink-muted); cursor: pointer; font: 600 14px/20px var(--font-ui); padding: 6px 16px; }
.segmented > .active,
.segmented > [aria-pressed="true"],
.lib-tabs > .active,
.lib-tabs > [aria-pressed="true"] { background: var(--surface-card); box-shadow: var(--shadow-card); color: var(--ink); }
.segmented > *:hover,
.lib-tabs > *:hover { color: var(--ink); }
.segmented > *:active,
.lib-tabs > *:active { transform: scale(0.98); }
.segmented > *:focus-visible,
.lib-tabs > *:focus-visible { outline: 2px solid var(--accent-blue); outline-offset: 2px; }
.switch { align-items: center; display: inline-flex; gap: 8px; }
.switch input { height: 1px; opacity: 0; overflow: hidden; position: absolute; width: 1px; }
.switch-track {
  background: var(--surface-high);
  border-radius: var(--r-full);
  cursor: pointer;
  display: inline-flex;
  height: 20px;
  padding: 2px;
  transition: background-color 150ms ease;
  width: 36px;
}
.switch-track::after { background: var(--surface-card); border-radius: var(--r-full); content: ""; height: 16px; transition: transform 150ms ease; width: 16px; }
.switch input:checked + .switch-track { background: var(--primary); }
.switch input:checked + .switch-track::after { transform: translateX(16px); }
.switch input:focus-visible + .switch-track { outline: 3px solid var(--focus-ring); outline-offset: 2px; }

/* 03-components §13 Modular rows */
.grid-modular { align-items: end; background: var(--surface-low); border-radius: var(--r-lg); gap: 8px; grid-template-columns: 2fr 1fr 72px 40px; padding: 8px; }

/* 03-components §13a Inline field errors (WP-1 input validation; nodes injected by field-validation.js) */
.field-error { color: var(--danger); font-size: 12px; line-height: 1.4; margin: 4px 0 0; }

/* 03-components §14 Notices */
.notice { align-items: flex-start; border-radius: var(--r-lg); display: flex; gap: 12px; padding: 16px; }
/* Storage-status banner (WP-4): sits directly above the patient banner; needs bottom spacing. */
.storage-banner { display: block; margin: 0 0 12px; }
.notice-info { background: var(--info-bg); }
.notice-warning { background: var(--warning-bg); color: var(--warning); }
.notice-danger { background: var(--danger-bg); color: var(--on-danger-bg); }

/* 03-components §15 Meter */
.meter { background: var(--surface-high); border-radius: var(--r-full); height: 6px; overflow: hidden; }
.meter > span { background: var(--primary); display: block; height: 100%; width: var(--pct, 0%); }
.meter-warning > span { background: var(--warning); }
.meter-danger > span { background: var(--danger); }
.tf-maintenance-row { flex-wrap: wrap; }
.tf-maintenance-row > span:last-of-type { font: 600 13px/20px var(--font-mono); font-variant-numeric: tabular-nums; text-align: right; }
.tf-maintenance-row .meter { flex: 0 0 100%; margin-top: 4px; }
.gp-card .meter { margin-top: 8px; }
.gp-card .meter > span { background: var(--accent-blue); }

/* 03-components §16 Footnotes and citations */
.footnote { color: var(--ink-muted); font: 400 12px/18px var(--font-ui); margin-top: 12px; text-align: left; }

/* 03-components §17 Empty states */
.empty-state { align-items: center; display: flex; flex-direction: column; padding: 32px; text-align: center; }
.empty-state p { color: var(--ink-muted); font: 400 12px/16px var(--font-ui); }

/* 03-components §24 Keyboard hint */
kbd {
  background: var(--surface-mid);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-sm);
  color: var(--ink);
  font: 500 11px/16px var(--font-mono);
  padding: 1px 6px;
}

/* redesign2 §§1-2: calculator hub tiles and feature banner */
.tool-tile-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(var(--tile-cols, 4), minmax(0, 1fr));
}

.tool-section {
  display: grid;
  gap: 12px;
  grid-column: span var(--section-span, 12);
}

.tool-section-heading {
  align-items: center;
  color: var(--ink);
  display: grid;
  font: 600 15px/20px var(--font-ui);
  gap: 10px;
  grid-template-columns: auto max-content minmax(32px, 1fr);
  letter-spacing: 0;
  text-transform: none;
}

.tool-section-heading::after {
  background: var(--border-subtle);
  content: "";
  height: 1px;
}

.tool-section-heading .icon-chip {
  background: transparent;
  color: var(--primary);
  flex-basis: 24px;
  height: 24px;
  width: 24px;
}

.tool-section-heading .icon-chip .icon {
  height: 20px;
  width: 20px;
}

.tool-section:nth-of-type(5n+2) .tool-section-heading .icon-chip { color: var(--accent-blue); }
.tool-section:nth-of-type(5n+3) .tool-section-heading .icon-chip { color: var(--warning); }
.tool-section:nth-of-type(5n+4) .tool-section-heading .icon-chip { color: var(--on-tertiary-container); }
.tool-section:nth-of-type(5n+5) .tool-section-heading .icon-chip { color: var(--secondary); }

/* redesign2 post-audit: tile icon chips pick up the same per-section tint as
   their section heading so a category reads as one color down the grid. The
   mark is a currentColor mask, so `color` here is the glyph ink on that tint. */
.tool-section:nth-of-type(5n+1) .tool-launch-icon { background-color: var(--primary-container); color: var(--on-primary-container); }
.tool-section:nth-of-type(5n+2) .tool-launch-icon { background-color: var(--info-bg); color: var(--info); }
.tool-section:nth-of-type(5n+3) .tool-launch-icon { background-color: var(--warning-bg); color: var(--warning); }
.tool-section:nth-of-type(5n+4) .tool-launch-icon { background-color: var(--tertiary-container); color: var(--on-tertiary-container); }
.tool-section:nth-of-type(5n+5) .tool-launch-icon { background-color: var(--secondary-container); color: var(--on-secondary-container); }

.tool-tile {
  align-items: stretch;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  min-height: 132px;
  padding: 0;
  position: relative;
  transition: background-color 150ms ease, border-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.tool-tile:hover,
.tool-tile:focus-within {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-raised);
  transform: translateY(-1px);
}

.tool-tile-main {
  align-items: flex-start;
  flex: 1;
  flex-direction: column;
  gap: 10px;
  padding: 14px 40px 14px 14px;
}

.tool-tile-main:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: -3px;
}

.tool-tile-main .tool-launch-icon {
  flex: 0 0 36px;
  height: 36px;
  width: 36px;
}

.tool-tile-main .tool-launch-text {
  gap: 4px;
  min-width: 0;
}

.tool-tile-main .headline-sm {
  color: var(--ink);
  font: 700 14px/20px var(--font-ui);
}

.tool-tile-main .body-sm {
  color: var(--ink-muted);
  display: -webkit-box;
  font: 400 12px/16px var(--font-ui);
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

.tool-tile-actions {
  display: flex;
  gap: 4px;
  opacity: 0;
  position: absolute;
  right: 10px;
  top: 10px;
  transition: opacity 150ms ease;
}

.tool-tile:hover .tool-tile-actions,
.tool-tile:focus-within .tool-tile-actions,
.tool-tile-actions:has([aria-pressed="true"]),
.all-tools-item-hidden .tool-tile-actions {
  opacity: 1;
}

@media (hover: none) {
  .tool-tile-actions { opacity: 1; }
}

.tool-tile-action {
  align-items: center;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-full);
  color: var(--ink-muted);
  cursor: pointer;
  display: flex;
  height: 28px;
  justify-content: center;
  padding: 0;
  width: 28px;
}

.tool-tile-action .icon {
  height: 16px;
  width: 16px;
}

.tool-tile-action:hover {
  background: var(--primary-tint);
  border-color: var(--border-strong);
  color: var(--ink);
}

.tool-tile-action:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 1px;
}

.tool-pin-button[aria-pressed="true"] {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--on-primary);
}

.all-tools-item-hidden .tool-tile-main {
  opacity: 0.68;
}

.feature-banner {
  align-items: center;
  background: var(--primary-tint);
  border-color: var(--primary-container);
  display: flex;
  gap: 20px;
  justify-content: space-between;
}

.feature-banner-copy {
  align-items: center;
  display: flex;
  gap: 14px;
  min-width: 0;
}

.feature-banner h2 {
  border: 0;
  color: var(--ink);
  font: 700 18px/24px var(--font-ui);
  letter-spacing: 0;
  margin: 0 0 2px;
  padding: 0;
  text-transform: none;
}

.feature-banner p {
  color: var(--ink-muted);
  font: 400 13px/20px var(--font-ui);
  margin: 0;
  max-width: 62ch;
}

.feature-banner .btn {
  flex: 0 0 auto;
}

/* redesign2 §11: reference hub cards */
.hub-card-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.hub-card {
  align-items: flex-start;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  color: inherit;
  cursor: pointer;
  display: grid;
  font: inherit;
  gap: 16px;
  min-height: 210px;
  padding: 20px;
  text-align: left;
  transition: background-color 150ms ease, border-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.hub-card:hover {
  background: var(--surface-low);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-raised);
  transform: translateY(-1px);
}

.hub-card:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.hub-card > .icon-chip {
  flex: 0 0 40px;
  height: 40px;
  width: 40px;
}

.hub-card > .icon-chip .icon {
  height: 20px;
  width: 20px;
}

.hub-card-copy {
  display: grid;
  gap: 6px;
}

.hub-card-title {
  color: var(--ink);
  font: 700 18px/24px var(--font-ui);
}

.hub-card-desc {
  color: var(--ink-muted);
  font: 400 13px/20px var(--font-ui);
}

.hub-card .text-action {
  align-self: end;
  color: var(--primary);
}

.hub-links {
  background: var(--surface-low);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  display: grid;
  gap: 4px;
  margin-top: 16px;
  padding: 16px;
}

.hub-links-heading {
  color: var(--primary);
  margin-bottom: 4px;
}

.hub-links .text-action {
  background: transparent;
  border: 0;
  border-radius: var(--r-sm);
  color: var(--ink);
  cursor: pointer;
  font: 600 14px/20px var(--font-ui);
  letter-spacing: 0;
  padding: 10px 12px;
  text-align: left;
  text-transform: none;
}

.hub-links .text-action:hover {
  background: var(--surface-card);
  color: var(--primary);
  text-decoration: none;
}

.hub-links .text-action:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

/* redesign2 §12: detail Quick Calc card */
.quick-calc-card {
  background: var(--primary-tint);
  border: 1px solid var(--primary-container);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  padding: 20px;
}

.quick-calc-card .card-header {
  margin-bottom: 14px;
}

.quick-calc-card .detail-list {
  margin-top: 12px;
}

.quick-calc-card .footnote {
  border-top: 1px solid var(--primary-container);
  margin-top: 12px;
  padding-top: 10px;
}

/* redesign2 §5: compare delta decorations */
.compare-toolbar {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  margin-top: 8px;
}
.variance-toggle {
  background: var(--surface-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-full);
  color: var(--ink);
  cursor: pointer;
  font: 700 12px/16px var(--font-ui);
  padding: 6px 14px;
}
.variance-toggle[aria-pressed="true"] { background: var(--primary-container); border-color: var(--primary); color: var(--on-primary-container); }
.compare-legend {
  color: var(--ink-muted);
  display: flex;
  flex-wrap: wrap;
  font: 500 12px/16px var(--font-ui);
  gap: 14px;
}
.compare-legend .delta-glyph { margin-right: 2px; }
.legend-swatch { border-radius: var(--r-full); display: inline-block; height: 8px; margin-right: 4px; width: 8px; }
.legend-swatch-cho { background: var(--accent-blue); }
.legend-swatch-pro { background: var(--primary); }
.legend-swatch-fat { background: var(--warning); }

/* redesign2 §8 .stacked-bar (PN energy distribution) */
.stacked-bar { background: var(--surface-low); border-radius: var(--r-full); display: flex; height: 6px; overflow: hidden; width: 100%; }
.stacked-bar-seg { display: block; height: 100%; }
.stacked-bar-cho { background: var(--accent-blue); width: var(--pct-cho, 0%); }
.stacked-bar-pro { background: var(--primary); width: var(--pct-pro, 0%); }
.stacked-bar-fat { background: var(--warning); width: var(--pct-fat, 0%); }
td.delta-up,
td.delta-down { font-weight: 600; }
td.delta-flag { background: var(--warning-bg); }
td.delta-up .delta-glyph { color: var(--success); }
td.delta-down .delta-glyph { color: var(--danger); }

/* redesign2 §§14-15 dashboard workspace cards */
.workspace-summary-card,
.growth-trend-card {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  display: grid;
  gap: 16px;
  min-width: 0;
  padding: 20px;
}
.workspace-summary-card[hidden],
.growth-trend-card[hidden] {
  display: none;
}
.workspace-card-header {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  min-width: 0;
}
.workspace-card-header h2 {
  color: var(--ink);
  font: 700 12px/16px var(--font-ui);
  letter-spacing: 0.05em;
  margin: 0;
  text-transform: uppercase;
}
.workspace-card-header .field {
  margin-left: auto;
  min-width: 180px;
}
.workspace-summary-card .stat-row { gap: 12px; padding: 0; }
.workspace-summary-card .stat { min-width: 0; }
.workspace-summary-card .stat .num { font-size: 16px; }
.workspace-summary-card .stat .lbl { font-size: 11px; }
.workspace-summary-details { display: grid; gap: 4px; }
.workspace-summary-card .text-action { justify-self: start; margin-top: 4px; }
.growth-trend-legend {
  align-items: center;
  color: var(--ink-muted);
  display: flex;
  flex-wrap: wrap;
  font: 400 12px/16px var(--font-ui);
  gap: 12px;
}
.growth-trend-legend span {
  align-items: center;
  display: inline-flex;
  gap: 6px;
}
.legend-line {
  border-top: 2px solid var(--primary);
  display: inline-block;
  opacity: 0.6;
  width: 20px;
}
.legend-point {
  background: var(--accent-blue);
  border: 1.5px solid var(--surface-card);
  border-radius: var(--r-full);
  box-shadow: 0 0 0 1px var(--border-subtle);
  display: inline-block;
  height: 9px;
  width: 9px;
}

@media (max-width: 640px) {
  .tool-tile-grid { grid-template-columns: 1fr; }
  .hub-card-grid { grid-template-columns: 1fr; }
  .feature-banner {
    align-items: stretch;
    flex-direction: column;
  }
  .feature-banner .btn { width: 100%; }
  .grid.grid-2,
  .grid.grid-3,
  .grid-modular,
  .stat-row { grid-template-columns: 1fr; }
  .dw-summary-box { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after { animation-duration: 0ms !important; transition-duration: 0ms !important; }
}
/* Wave 7 cleanup: retained compatibility selectors in the split stylesheet. */
@layer legacy {
/* ---------------------------------------------------------------------
   Base
   --------------------------------------------------------------------- */
* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--secondary-container); color: var(--clinical-green-dark); }

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 32px 28px 72px;
}

header { margin-bottom: 24px; }

.eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--primary);
  margin: 0 0 4px;
}

h1 {
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}

/* ---------------------------------------------------------------------
   Cards (every <section> is a clinical "panel")
   --------------------------------------------------------------------- */
section {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: 22px 24px 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-card);
}

h2 {
  font-size: 12.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.055em;
  color: var(--primary);
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Sub-headers used inside a calculator to separate batches/sub-tools
   (e.g. Recipe Generator's "Small Batch" / "Large Batch", Growth
   Velocity's "Infants" / "Children" / "Catch-up Growth Needs") should
   read as a lighter internal divider, not repeat the card's own title
   treatment three times in a row. Only the section's first <h2> gets
   the full card-header styling above. */
section h2 ~ h2 {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0.01em;
  color: var(--ink);
  border-bottom: none;
  padding-bottom: 0;
  margin-top: 22px;
  margin-bottom: 10px;
}
section h2 ~ h2::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--primary-container);
}

/* ---------------------------------------------------------------------
   Form controls — touch-friendly (tablet), clear focus states
   --------------------------------------------------------------------- */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: 1fr 1fr 1fr; }
.grid-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-modular { grid-template-columns: 5fr 4fr 3fr auto; align-items: end; }

.renal-ingredient-list { margin-bottom: 14px; }
.renal-mode-picker { display: flex; flex-wrap: wrap; gap: 8px; }
.renal-mode-button {
  background: var(--surface-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  color: var(--primary);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  min-height: 42px;
  padding: 8px 12px;
}
.renal-mode-button.is-active { background: var(--primary-tint); border-color: var(--secondary); }
.renal-mode-button span { font-weight: 400; }
.renal-mode-note { margin: 12px 0 0; }
.renal-context-grid { margin-bottom: 18px; }
.renal-field-help { display: block; color: var(--ink-muted); font-size: 11px; margin-top: 5px; }
.renal-goal-heading { align-items: center; display: flex; gap: 7px; }
.renal-goal-heading .renal-subheading { margin-bottom: 10px; }
.renal-goal-help { display: inline-flex; position: relative; }
.renal-goal-help-button {
  align-items: center;
  background: var(--primary-tint);
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  color: var(--primary);
  cursor: help;
  display: inline-flex;
  font: inherit;
  font-size: 11px;
  font-weight: 700;
  height: 22px;
  justify-content: center;
  line-height: 1;
  padding: 0;
  width: 22px;
}
.renal-goal-help-button:hover,
.renal-goal-help-button:focus-visible { background: var(--secondary-container); border-color: var(--secondary); }
.renal-goal-tooltip {
  background: var(--ink);
  border-radius: var(--r-sm);
  box-shadow: var(--shadow-raised);
  color: var(--readout-ink);
  font-size: 12px;
  font-weight: 400;
  left: 0;
  line-height: 1.5;
  opacity: 0;
  padding: 11px 13px;
  pointer-events: none;
  position: absolute;
  top: calc(100% + 8px);
  transform: translateY(-3px);
  transition: opacity 150ms ease, transform 150ms ease;
  visibility: hidden;
  width: max-content;
  max-width: min(360px, calc(100vw - 40px));
  z-index: 10;
}
.renal-goal-tooltip strong { color: var(--secondary-container); }
.renal-goal-help:hover .renal-goal-tooltip,
.renal-goal-help:focus-within .renal-goal-tooltip {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}
.renal-goal-list { display: grid; gap: 10px; margin-bottom: 18px; }
.renal-goal-row { display: grid; grid-template-columns: minmax(0, 1fr) 132px 104px 90px; gap: 10px; align-items: end; }
.renal-goal-row label { margin: 0; }
.renal-goal-label { color: var(--ink-muted); font-weight: 600; }
.renal-goal-range-end[hidden] { display: none; }
.renal-goal-perkg { align-items: center; display: flex; gap: 6px; min-height: 42px; }
.renal-goal-perkg-check { width: auto; }
.renal-goal-product-selects { display: grid; gap: 12px; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-bottom: 8px; }
.renal-goal-product-field { display: grid; gap: 6px; margin: 0; }
.renal-goal-product-field select:disabled { opacity: 0.55; }
.renal-goal-feedback { margin-top: 14px; color: var(--ink); font-size: 12px; line-height: 1.5; }
.renal-goal-feedback p { margin: 6px 0; }
.renal-goal-feedback ul { margin: 6px 0 0; padding-left: 18px; }
.renal-subheading { border: 0; color: var(--ink); font-size: 13px; margin: 18px 0 10px; padding: 0; }
.renal-ingredient-row {
  display: grid;
  grid-template-columns: minmax(260px, 3fr) minmax(100px, 1fr) minmax(110px, 0.9fr) auto;
  gap: 10px;
  align-items: end;
  padding: 0 0 14px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}
.renal-product-status {
  display: block;
  margin-top: 5px;
  color: var(--ink-muted);
  font-size: 11px;
  line-height: 1.3;
}
.renal-product-status.is-missing { color: var(--warning); }
.renal-fixed-unit {
  align-items: center;
  background: var(--primary-tint);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  display: flex;
  min-height: 42px;
  padding: 9px 11px;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.renal-remove-ingredient { min-height: 42px; }
.renal-delivery-field { display: grid; grid-template-columns: 1fr 86px; gap: 8px; }
.renal-blend-stat-row { margin-bottom: 16px; }
.renal-blend-table-wrap { overflow-x: auto; }
.renal-blend-table { margin-top: 0; }
.renal-blend-table th[scope="row"] { text-align: left; color: var(--ink-muted); font-weight: 500; }
.renal-blend-table td, .renal-blend-table th { font-variant-numeric: tabular-nums; }
.renal-coverage-omittedByPolicy { color: var(--warning); }
.renal-coverage-unavailable { color: var(--danger); }
.renal-coverage-complete { color: var(--success); }
.renal-summary-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 18px; }
.renal-recipe-readout { background: var(--ink); border-radius: var(--r-lg); box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05); padding: 18px 20px; }
.renal-recipe-transfer { display: flex; justify-content: flex-end; margin-top: 10px; }
.renal-recipe-transfer[hidden] { display: none; }
.renal-recipe-transfer .btn:disabled { cursor: not-allowed; opacity: 0.55; }
.renal-readout-heading { align-items: center; color: var(--secondary-container); display: flex; justify-content: space-between; margin-bottom: 10px; }
.renal-recipe-readout pre { color: var(--readout-ink); font-family: var(--font-mono); font-size: 13.5px; line-height: 1.7; margin: 0; white-space: pre-wrap; font-variant-numeric: tabular-nums; }
.btn-copy { background: var(--secondary); border-color: var(--secondary); color: var(--on-primary); }
.btn-copy:hover { background: var(--primary); color: var(--on-primary); }
.btn-copy.copied { background: var(--success); border-color: var(--success); }
.renal-blend-table details, details#renalDetailedView { margin-top: 0; }
details#renalDetailedView summary { color: var(--primary); cursor: pointer; font-weight: 700; padding: 4px 0 12px; }
.renal-issue-info { color: var(--ink); }
.renal-issue-warning { color: var(--warning); }
.renal-issue-error { color: var(--danger); }
.renal-blend-status,
.renal-blend-issues {
  margin-top: 14px;
  padding: 10px 12px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-sm);
  font-size: 12px;
  line-height: 1.5;
}
.renal-blend-status.is-ok { color: var(--success); background: var(--primary-tint); }
.renal-blend-status.is-warning { color: var(--warning); background: var(--warning-bg); }
.renal-blend-issues { color: var(--warning); background: var(--warning-bg); }
.renal-blend-issues ul { margin: 6px 0 0; padding-left: 18px; }

label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-muted);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}

select,
input[type="number"],
input[type="date"],
input[type="text"] {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  padding: 9px 11px;
  font-size: 14.5px;
  background: var(--surface-card);
  color: var(--ink);
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%234b6270' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

select:hover,
input[type="number"]:hover,
input[type="date"]:hover,
input[type="text"]:hover {
  border-color: var(--ink-faint);
}

select:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="text"]:focus {
  outline: none;
  border-color: var(--primary-container);
  box-shadow: 0 0 0 3px rgba(132,167,180,0.18);
}

select:disabled,
input:disabled {
  background: var(--primary-tint);
  color: var(--ink-muted);
  cursor: not-allowed;
}

::placeholder { color: var(--ink-muted); }

.unit-box {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-tint);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-sm);
  padding: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-muted);
  text-align: center;
}

.modular-row + .modular-row { margin-top: 16px; }
.modular-add { margin-top: 16px; min-height: 42px; }
.modular-remove { min-height: 42px; }
.modular-remove[hidden] { display: none; }
.modular-add:disabled { cursor: not-allowed; opacity: 0.55; }

/* ---------------------------------------------------------------------
   Results — stat tiles, detail lines, summary boxes.
   Distinct tinted surface so results always read visually apart from
   the plain-white input areas above them (Inputs → Results → Reference).
   --------------------------------------------------------------------- */
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }

.stat {
  background: var(--primary-tint);
  border: 1px solid var(--secondary-container);
  border-radius: var(--r-md);
  padding: 14px 10px;
  text-align: center;
}
.stat .num {
  font-size: 21px;
  font-weight: 700;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.stat .lbl {
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--primary);
  line-height: 1.3;
  margin-top: 4px;
}

.detail-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 9px 2px;
  border-bottom: 1px solid var(--primary-tint);
  font-size: 14px;
}
.detail-line:last-child { border-bottom: none; }
.detail-line span:first-child { color: var(--ink-muted); }
.detail-line span:last-child {
  font-weight: 600;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

/* Nutrition Reference — Age-Based Energy & Protein Needs: BMR activity-factor
   dual-range slider (two overlapping native range inputs sharing one visual
   track; each input's own thumb captures pointer events, the track itself
   doesn't, so both handles stay independently draggable). */
.ep-activity-block {
  margin-top: 16px;
  padding-top: 4px;
}
.ep-activity-block > label {
  font-size: 13px;
  color: var(--ink-muted);
}
.ep-activity-block > label span { font-weight: 600; color: var(--ink); }
.dual-range {
  position: relative;
  height: 28px;
  margin: 8px 0 4px;
}
.dual-range input[type="range"] {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  margin: 0;
  background: none;
  pointer-events: none;
  -webkit-appearance: none;
  appearance: none;
}
.dual-range input[type="range"]:focus-visible { outline: none; }
.dual-range input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  background: var(--border-strong);
  border-radius: 2px;
}
.dual-range input[type="range"]::-moz-range-track {
  height: 4px;
  background: var(--border-strong);
  border-radius: 2px;
}
.dual-range input[type="range"]::-webkit-slider-thumb {
  pointer-events: auto;
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -6px;
  border-radius: 50%;
  background: var(--secondary);
  border: 2px solid var(--on-primary);
  box-shadow: 0 1px 3px rgba(23,42,51,0.3);
  cursor: pointer;
}
.dual-range input[type="range"]::-moz-range-thumb {
  pointer-events: auto;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--secondary);
  border: 2px solid var(--on-primary);
  box-shadow: 0 1px 3px rgba(23,42,51,0.3);
  cursor: pointer;
}
.dual-range input[type="range"]:focus-visible::-webkit-slider-thumb {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}
.dual-range input[type="range"]:focus-visible::-moz-range-thumb {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.dw-summary-box {
  margin-top: 16px;
  background: var(--primary-tint);
  border: 1px solid var(--secondary-container);
  border-radius: var(--r-sm);
  padding: 13px 14px;
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  line-height: 1.5;
}

/* ---------------------------------------------------------------------
   Regimen readout — styled as a clinical order/note printout: dark
   panel, monospace figures. This is the one deliberately distinctive
   surface in the app; everything else stays quiet around it.
   --------------------------------------------------------------------- */
.readout-section {
  background: var(--ink);
  border-radius: var(--r-lg);
  padding: 18px 20px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05);
}
.readout-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.readout-header h2 {
  color: var(--secondary-container);
  margin: 0;
  padding: 0;
  border: none;
}
button.copy-btn {
  font-size: 12px;
  font-weight: 600;
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  padding: 8px 14px;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.05s ease;
}
button.copy-btn:hover { background: var(--primary); }
button.copy-btn:active { transform: translateY(1px); }
button.copy-btn.copied { background: var(--success); }

pre.readout {
  white-space: pre-wrap;
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--readout-ink);
  line-height: 1.7;
  margin: 0;
  font-variant-numeric: tabular-nums;
}

.patient-summary-readout {
  margin-top: 12px;
  padding: 14px 16px;
}
.patient-summary-readout .readout {
  overflow-wrap: anywhere;
}
.patient-summary-source-note {
  color: var(--ink-muted);
  font-size: 12px;
  margin: 8px 0 0;
}

/* ---------------------------------------------------------------------
   Footnotes — quiet, supplementary. Reads as the "reference / fine
   print" tier beneath a section's inputs and results.
   --------------------------------------------------------------------- */
.footnote {
  font-size: 11.5px;
  color: var(--ink-muted);
  line-height: 1.55;
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--primary-tint);
  text-align: left;
}
/* The handful of standalone, page-level notes (privacy note, source-guide
   colophon) sit directly under .page or .wrap rather than inside a card's
   own <section> — those read as page fine-print, not a card's reference
   strip, so they stay centered with no divider. */
.page > .footnote,
.wrap > .footnote {
  text-align: center;
  border-top: none;
  padding-top: 0;
}

/* ---------------------------------------------------------------------
   App shell / sidebar navigation
   --------------------------------------------------------------------- */
}