/* STUDresearch — V4 Studboards visual alignment
   Dark-first cinematic tokens match studboards.com; research UX layout preserved.
   Internal names (--paper, --signal) stay so list/dossier rules keep working. */

:root {
  /* V4 surfaces (alias names kept for existing rules) */
  --ink: #f7f8f4;
  --ink-muted: #9aa5b1;
  --ink-faint: #8491a1;
  --paper: #05070a;
  --paper-elevated: #0c1117;
  --paper-card: #10161e;
  --rule: rgba(255, 255, 255, 0.1);
  --rule-strong: rgba(255, 255, 255, 0.18);
  --signal: #c8f53f;
  --signal-soft: rgba(200, 245, 63, 0.14);
  --signal-ink: #101503;
  --peptide: #45dbf7;
  --nonpeptide: #a06bff;
  --caution: #ff8a7a;
  --gold: #f4bf46;
  --disclaimer-bg: rgba(5, 7, 10, 0.96);
  --disclaimer-fg: #9aa5b1;
  --focus: #c8f53f;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.48);
  --glow-lime: 0 0 24px rgba(200, 245, 63, 0.22);
  --font-display: "Avenir Next", Avenir, "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-ui: "Avenir Next", Avenir, "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Roboto Mono", ui-monospace, Menlo, monospace;
  --bezel-h: auto;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --touch: 44px;
  --v4-max: 1240px;
  color-scheme: dark;
}

/* Optional light reading mode (not the brand default) */
html[data-theme="paper"] {
  --ink: #12151a;
  --ink-muted: #5c6570;
  --ink-faint: #8491a1;
  --paper: #eef3ef;
  --paper-elevated: #ffffff;
  --paper-card: #f7faf7;
  --rule: rgba(16, 21, 26, 0.12);
  --rule-strong: rgba(16, 21, 26, 0.2);
  --signal: #167a55;
  --signal-soft: rgba(22, 122, 85, 0.14);
  --signal-ink: #ffffff;
  --peptide: #0e7490;
  --nonpeptide: #6d28d9;
  --caution: #b45309;
  --gold: #b45309;
  --disclaimer-bg: #0a0e13;
  --disclaimer-fg: #9aa5b1;
  --focus: #167a55;
  --shadow: 0 16px 40px rgba(16, 21, 26, 0.12);
  --glow-lime: none;
  color-scheme: light;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 100;
  padding: 0.5rem 0.75rem;
  background: var(--signal);
  color: var(--signal-ink);
  font-weight: 700;
  border-radius: var(--radius-sm);
}
.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.theme-btn {
  margin-left: auto;
  min-height: 1.85rem !important;
  font-size: 0.65rem !important;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-back {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 1.85rem;
  padding: 0.2rem 0.65rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink-muted);
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.site-back:hover,
.site-back:focus-visible {
  color: var(--ink);
  border-color: color-mix(in srgb, var(--signal) 45%, var(--rule));
  background: var(--signal-soft);
}

.chrome-brand-row {
  width: 100%;
  align-items: center;
}

.always-cautions {
  margin: 0 0 0.75rem;
  padding: 0.65rem 0.75rem;
  border-left: 3px solid var(--caution);
  background: color-mix(in srgb, var(--caution) 10%, var(--paper-elevated));
  border-radius: 0 6px 6px 0;
}

.always-cautions-h {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--caution);
  margin-bottom: 0.35rem;
}

.always-cautions-note {
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  text-transform: none;
}

.dose-convention-note {
  margin: 0 0 0.55rem;
  padding: 0.4rem 0.5rem;
  font-size: 0.78rem;
  line-height: 1.35;
  color: var(--ink-muted);
  border: 1px dashed var(--rule);
  border-radius: 4px;
  background: color-mix(in srgb, var(--paper) 70%, transparent);
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  background-image:
    radial-gradient(ellipse 90% 50% at 50% -10%, rgba(200, 245, 63, 0.06), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(160, 107, 255, 0.05), transparent 50%);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

html[data-theme="paper"] body {
  background-image: none;
}

::selection {
  background: color-mix(in srgb, var(--signal) 35%, transparent);
  color: var(--ink);
}

button,
input,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

a {
  color: var(--peptide);
}

a:hover {
  color: var(--signal);
}

/* —— Disclaimer strip —— */
.disclaimer-top {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--disclaimer-bg);
  color: var(--disclaimer-fg);
  padding: 0.55rem 1rem;
  text-align: center;
  font-size: 0.78rem;
  line-height: 1.35;
  letter-spacing: 0.01em;
  border-bottom: 1px solid var(--rule);
}

/* —— Chrome: ONLY search strip is sticky. Paths/filters/tip scroll away. —— */
.chrome-sticky {
  position: sticky;
  /* Stick just under the sticky disclaimer strip */
  top: 2.35rem;
  z-index: 40;
  background: rgba(5, 7, 10, 0.78);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-bottom: 1px solid var(--rule-strong);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--signal) 35%, transparent);
}

html[data-theme="paper"] .chrome-sticky {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: none;
}

.chrome-sticky-inner {
  padding: 0.4rem 1rem 0.45rem;
}

.chrome-brand-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 0.65rem;
  margin-bottom: 0.35rem;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
  line-height: 1.15;
  color: var(--ink);
}

.brand-stud {
  letter-spacing: 0.04em;
  font-weight: 800;
  color: var(--signal);
  text-shadow: 0 0 18px rgba(200, 245, 63, 0.25);
}

html[data-theme="paper"] .brand-stud {
  text-shadow: none;
}

.brand-sub {
  margin: 0;
  font-size: 0.7rem;
  color: var(--ink-muted);
  letter-spacing: 0.01em;
}

/* Non-sticky browse panel — hidden by default (list-first) */
.chrome-flow {
  padding: 0.4rem 0 0.35rem;
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}

.chrome-flow[hidden] {
  display: none !important;
}

.browse-more-row {
  padding: 0.25rem 1rem 0.15rem;
}

.active-filters-sticky {
  margin: 0.25rem 0 0;
  max-height: 2.4rem;
  overflow-x: auto;
  overflow-y: hidden;
  flex-wrap: nowrap;
}

.active-filters-sticky:empty {
  display: none;
}

.value-line {
  margin: 0 1rem 0.35rem;
  font-size: 0.8rem;
  line-height: 1.3;
  color: var(--ink-muted);
  max-width: 42rem;
  /* One visual line on small screens */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.value-line strong {
  color: var(--ink);
  font-weight: 650;
}

/* Legacy alias if anything still references .bezel */
.bezel {
  /* no sticky lock */
}

.first-tip {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0 1rem 0.4rem;
  padding: 0.4rem 0.55rem;
  border: 1px solid var(--signal-soft);
  background: color-mix(in srgb, var(--signal-soft) 28%, var(--paper-elevated));
  font-size: 0.75rem;
  line-height: 1.3;
  color: var(--ink);
}

.first-tip[hidden] {
  display: none !important;
}

.tip-x {
  flex: 0 0 auto;
  width: 1.75rem;
  height: 1.75rem;
  font-size: 1.1rem;
  color: var(--ink-muted);
}

/* Audience start-paths — single horizontal strip (no multi-row wrap explosion) */
.audience-paths {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.3rem;
  margin: 0.15rem 0 0.2rem;
  padding: 0 1rem;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.path-k {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--signal);
}

.path-chip {
  flex: 0 0 auto;
  min-height: 1.85rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid color-mix(in srgb, var(--signal) 35%, var(--rule));
  border-radius: 999px;
  background: color-mix(in srgb, var(--signal-soft) 22%, var(--paper-elevated));
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.2;
  white-space: nowrap;
}

.path-chip:hover,
.path-chip:focus-visible {
  border-color: var(--signal);
  background: color-mix(in srgb, var(--signal-soft) 45%, var(--paper-elevated));
}

.path-chip.is-active,
.path-chip[aria-pressed="true"] {
  border-color: var(--signal);
  background: color-mix(in srgb, var(--signal) 22%, var(--paper-elevated));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--signal) 40%, transparent);
}

.hot-searches {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.3rem;
  margin: 0.15rem 0;
  padding: 0 1rem;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.hot-chip {
  flex: 0 0 auto;
  min-height: 1.65rem;
  padding: 0.12rem 0.5rem;
  border: 1px dashed var(--rule);
  border-radius: 999px;
  background: transparent;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--ink-muted);
  white-space: nowrap;
}

.hot-chip:hover {
  border-color: var(--signal);
  color: var(--ink);
}

.qchip-accent {
  border-color: color-mix(in srgb, var(--signal) 50%, var(--rule));
}

.compare-bar {
  margin-top: 0.55rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--signal);
  background: color-mix(in srgb, var(--signal-soft) 35%, var(--paper-elevated));
}

.compare-bar[hidden] {
  display: none !important;
}

.compare-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.65rem;
  font-size: 0.85rem;
}

.compare-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--signal);
}

.compare-names {
  flex: 1;
  min-width: 8rem;
  font-weight: 600;
}

.ledger-row-wrap {
  display: grid;
  grid-template-columns: 1fr auto;
  border-bottom: 1px solid var(--rule);
}

.ledger-row-wrap .ledger-row {
  border-bottom: none;
}

.ledger-row-wrap.is-compare {
  background: color-mix(in srgb, var(--signal-soft) 22%, transparent);
}

.cmp-btn {
  align-self: stretch;
  min-width: 2.5rem;
  padding: 0 0.45rem;
  border-left: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  background: color-mix(in srgb, var(--paper-elevated) 85%, var(--paper));
}

.cmp-btn.is-on {
  background: color-mix(in srgb, var(--signal) 22%, var(--paper-elevated));
  color: var(--ink);
  font-weight: 700;
}

.type-pill.stack-pill {
  color: var(--signal);
  border-color: color-mix(in srgb, var(--signal) 45%, var(--rule));
}

.show-more {
  display: block;
  width: 100%;
  margin: 0.35rem 0 0.15rem;
  padding: 0.45rem 0.6rem;
  border: 1px dashed var(--rule);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--signal-soft) 18%, var(--paper-elevated));
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--ink);
  text-align: center;
}

.show-more:hover {
  border-color: var(--signal);
}

.scan-hint {
  margin: 0 0 0.55rem;
  padding: 0.4rem 0.55rem;
  font-size: 0.78rem;
  line-height: 1.35;
  color: var(--ink-muted);
  background: color-mix(in srgb, var(--paper) 80%, transparent);
  border-radius: 4px;
  border: 1px dashed var(--rule);
}

.scan-hint strong {
  color: var(--ink);
  font-weight: 650;
}

.evidence-badge {
  margin: 0 0 0.65rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--rule);
  border-left-width: 3px;
  background: var(--paper);
}

.evidence-badge.evidence-community {
  border-left-color: var(--signal);
}

.evidence-badge.evidence-trial {
  border-left-color: var(--peptide);
}

.evidence-badge.evidence-mixed {
  border-left-color: var(--ink-muted);
}

.evidence-k {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.evidence-v {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0.15rem 0;
}

.evidence-mode {
  display: block;
  font-size: 0.75rem;
  color: var(--ink-muted);
}

/* Section tools inside scroll region — never sticky (locks viewport) */
.density-toolbar,
.sheet-section-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0.25rem 0 0.15rem;
  padding: 0;
  position: static;
}

.density-toolbar .btn-ghost,
.sheet-section-tools .btn-ghost {
  min-height: 2rem;
  font-size: 0.68rem;
  padding: 0 0.55rem;
}

.density-toolbar .btn-ghost.is-active {
  border-color: var(--signal);
  background: color-mix(in srgb, var(--signal-soft) 45%, var(--paper-elevated));
  font-weight: 700;
}

.sheet-bar-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.3rem;
}

.sheet-bar-actions .btn-ghost {
  min-height: 2rem;
  min-width: 3.1rem;
  padding: 0 0.5rem;
  font-size: 0.65rem;
}

.sheet-bar-actions .btn-ghost.is-active {
  border-color: var(--signal);
  background: color-mix(in srgb, var(--signal-soft) 45%, var(--paper-elevated));
  font-weight: 700;
}

.compare-lead {
  margin: 0 0 0.75rem;
  font-size: 0.88rem;
  color: var(--ink-muted);
  line-height: 1.35;
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .compare-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.compare-col {
  padding: 0.75rem;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--paper);
}

.compare-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin: 0 0 0.55rem;
}

.compare-open {
  margin-bottom: 0.65rem;
}

.compare-facts {
  margin: 0;
}

.compare-facts .dg-watch {
  grid-column: 1 / -1;
  border-left: 3px solid var(--caution);
  background: color-mix(in srgb, var(--caution) 7%, var(--paper-elevated));
}

.compare-h {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 0.45rem;
}

.compare-col .qf {
  margin-bottom: 0.45rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--rule);
}

.search-row {
  display: flex;
  gap: 0.4rem;
  align-items: stretch;
}

/* Compact chrome controls — avoid 44px buttons doubling sticky height */
.chrome-sticky .btn-ghost {
  min-height: 2.35rem;
  padding: 0 0.55rem;
  font-size: 0.7rem;
}

.chrome-sticky .search-wrap input {
  min-height: 2.35rem;
  font-size: 0.95rem;
}

.search-wrap {
  flex: 1;
  position: relative;
}

.search-wrap input {
  width: 100%;
  min-height: var(--touch);
  padding: 0.55rem 2.5rem 0.55rem 0.85rem;
  border: 1px solid var(--rule);
  background: var(--paper-elevated);
  border-radius: var(--radius-sm);
  outline: none;
}

.search-wrap input:focus {
  border-color: var(--signal);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--signal) 35%, transparent);
}

.search-clear {
  position: absolute;
  right: 0.35rem;
  top: 50%;
  transform: translateY(-50%);
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  color: var(--ink-muted);
  font-size: 1.2rem;
  line-height: 1;
  display: grid;
  place-items: center;
}

.search-clear:hover {
  color: var(--ink);
  background: color-mix(in srgb, var(--rule) 40%, transparent);
}

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

/* Quick filters — one horizontal strip */
.quick-filters {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.3rem;
  margin: 0.15rem 0 0.25rem;
  padding: 0 1rem;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.qchip {
  flex: 0 0 auto;
  min-height: 1.85rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper-elevated);
  font-size: 0.74rem;
  line-height: 1.2;
  color: var(--ink);
  white-space: nowrap;
}

.qchip.is-active,
.qchip[aria-pressed="true"] {
  border-color: var(--signal);
  background: color-mix(in srgb, var(--signal) 18%, var(--paper-elevated));
  font-weight: 600;
}

.btn-ghost {
  min-height: var(--touch);
  padding: 0 0.85rem;
  border: 1px solid var(--rule);
  background: var(--paper-elevated);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.btn-ghost[aria-pressed="true"],
.btn-ghost.is-active {
  border-color: color-mix(in srgb, var(--signal) 55%, var(--rule));
  background: var(--signal-soft);
  color: var(--signal);
  box-shadow: var(--glow-lime);
}

html[data-theme="paper"] .btn-ghost[aria-pressed="true"],
html[data-theme="paper"] .btn-ghost.is-active {
  color: var(--signal);
  box-shadow: none;
}

.btn-ghost:focus-visible,
.chip:focus-visible,
.ledger-row:focus-visible,
.az-btn:focus-visible,
.sheet-close:focus-visible,
.section-toggle:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.filter-panel {
  display: none;
  margin-top: 0.65rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--rule);
}

.filter-panel.open {
  display: block;
}

.filter-group {
  margin-bottom: 0.75rem;
}

.filter-group h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.chip {
  min-height: 2rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper-elevated);
  font-size: 0.78rem;
  line-height: 1.2;
}

.chip[aria-pressed="true"] {
  border-color: var(--signal);
  background: color-mix(in srgb, var(--signal) 18%, var(--paper-elevated));
  font-weight: 600;
}

.chip.chip-peptide[aria-pressed="true"] {
  border-color: var(--peptide);
  background: color-mix(in srgb, var(--peptide) 14%, var(--paper-elevated));
}

.chip.chip-nonpeptide[aria-pressed="true"] {
  border-color: var(--nonpeptide);
  background: color-mix(in srgb, var(--nonpeptide) 14%, var(--paper-elevated));
}

.filter-scroll {
  max-height: 9.5rem;
  overflow: auto;
  padding-right: 0.25rem;
  border: 1px solid var(--rule);
  background: var(--paper-elevated);
  padding: 0.4rem;
}

.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.55rem;
  min-height: 0;
}

.active-filters:empty {
  display: none;
}

.tag-removable {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.5rem;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  background: color-mix(in srgb, var(--signal-soft) 40%, transparent);
  border: 1px solid var(--signal-soft);
  border-radius: var(--radius-sm);
}

.tag-removable button {
  font-size: 0.9rem;
  line-height: 1;
  color: var(--ink-muted);
  padding: 0 0.15rem;
}

/* Legend — collapsed by default, thin row only */
.legend {
  margin: 0.25rem 1rem 0;
  border: 1px solid var(--rule);
  background: var(--paper-elevated);
}

.legend-toggle {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 2rem;
  padding: 0.3rem 0.65rem;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.active-filters {
  margin-left: 1rem;
  margin-right: 1rem;
}

.compare-bar {
  margin-left: 1rem;
  margin-right: 1rem;
}

.filter-panel {
  margin-left: 1rem;
  margin-right: 1rem;
}

.legend-body {
  display: none;
  padding: 0 0.85rem 0.85rem;
  font-size: 0.86rem;
  color: var(--ink);
  border-top: 1px solid var(--rule);
}

.legend.open .legend-body {
  display: block;
}

.legend-body ul {
  margin: 0.55rem 0 0;
  padding-left: 1.1rem;
}

.legend-body li {
  margin-bottom: 0.35rem;
}

.legend-body code {
  font-family: var(--font-mono);
  font-size: 0.78em;
  background: color-mix(in srgb, var(--rule) 50%, transparent);
  padding: 0.05rem 0.3rem;
}

/* Layout: A–Z + list */
.workspace {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 0 4rem;
}

.az-rail {
  display: flex;
  gap: 0.2rem;
  overflow-x: auto;
  padding: 0.35rem 1rem;
  border-bottom: 1px solid var(--rule);
  background: color-mix(in srgb, var(--paper-elevated) 90%, var(--paper));
  /* Mobile: NOT sticky — sticky A–Z + sticky search was stealing the viewport */
  position: static;
  z-index: 30;
  scrollbar-width: thin;
}

@media (min-width: 900px) {
  .az-rail {
    /* desktop side rail sticky is set in the 900px layout block */
  }
}

.az-btn {
  flex: 0 0 auto;
  min-width: 2rem;
  min-height: 2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
}

.az-btn:hover,
.az-btn:focus-visible {
  color: var(--ink);
  border-color: var(--rule);
}

.az-btn.is-active,
.az-btn[aria-pressed="true"] {
  color: var(--ink);
  border-color: var(--signal);
  background: color-mix(in srgb, var(--signal-soft) 55%, var(--paper-elevated));
  font-weight: 700;
}

.az-btn:disabled {
  opacity: 0.28;
  cursor: default;
}

.letter-heading {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 1rem;
  border-bottom: 1px solid var(--rule);
  background: color-mix(in srgb, var(--signal-soft) 28%, var(--paper));
  font-size: 0.88rem;
  color: var(--ink-muted);
  /* Leave room under sticky bezel when jumping to this letter */
  scroll-margin-top: 9.5rem;
}

.letter-heading-mark {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
  background: var(--paper-elevated);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
}

.letter-heading-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink);
}

.meta-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  border-bottom: 1px solid var(--rule);
}

.sort-select {
  border: 1px solid var(--rule);
  background: var(--paper-elevated);
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

/* Ledger rows */
.ledger {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ledger-row {
  display: grid;
  grid-template-columns: 5px 1fr auto;
  gap: 0.65rem 0.75rem;
  width: 100%;
  text-align: left;
  padding: 0.75rem 0.55rem 0.75rem 0.9rem;
  min-height: 56px;
  border-bottom: 1px solid var(--rule);
  background: transparent;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.ledger-row:hover,
.ledger-row:focus-visible {
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--signal) 10%, transparent),
    color-mix(in srgb, var(--paper-elevated) 70%, transparent)
  );
  border-color: color-mix(in srgb, var(--signal) 28%, var(--rule));
}

.ledger-row .spine {
  width: 5px;
  border-radius: 1px;
  background: color-mix(in srgb, var(--ink) 25%, transparent);
  align-self: stretch;
}

.ledger-row .spine.high {
  background: var(--signal);
}

.ledger-row .spine.medium {
  background: color-mix(in srgb, var(--signal) 55%, transparent);
}

.ledger-row .spine.emerging {
  background: color-mix(in srgb, var(--ink) 28%, transparent);
}

.row-main {
  min-width: 0;
}

.row-title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.5rem;
  margin-bottom: 0.15rem;
}

.row-name {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.25;
}

.type-pill {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.1rem 0.38rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--ink-muted);
}

.type-pill.peptide {
  color: var(--peptide);
  border-color: color-mix(in srgb, var(--peptide) 40%, var(--rule));
}

.type-pill.non-peptide {
  color: var(--nonpeptide);
  border-color: color-mix(in srgb, var(--nonpeptide) 40%, var(--rule));
}

/* Bro-science one-liner — what it is / why people care (no dose in list) */
.row-blurb {
  display: block;
  margin: 0.2rem 0 0.25rem;
  padding: 0.28rem 0.5rem;
  font-size: 0.86rem;
  line-height: 1.32;
  font-weight: 600;
  color: var(--ink);
  background: color-mix(in srgb, var(--signal-soft) 22%, var(--paper-elevated));
  border-left: 3px solid var(--signal);
  border-radius: 0 3px 3px 0;
}

.row-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 0.4rem;
  font-size: 0.78rem;
  color: var(--ink-muted);
  line-height: 1.3;
}

.row-meta .sep {
  margin: 0 0.3rem;
  opacity: 0.5;
}

.row-route {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.12rem 0.4rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--peptide);
  background: color-mix(in srgb, var(--peptide) 6%, var(--paper-elevated));
}

.row-half {
  font-size: 0.72rem;
  color: var(--ink-muted);
  max-width: 12rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.row-goal {
  font-size: 0.72rem;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid color-mix(in srgb, var(--rule) 80%, transparent);
  color: var(--ink-muted);
}

.row-match {
  display: block;
  margin: 0.1rem 0 0.15rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: color-mix(in srgb, var(--signal) 75%, var(--ink));
}

.row-summary {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.84rem;
  color: var(--ink-muted);
  line-height: 1.35;
}

.row-signal {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--ink-muted);
  align-self: center;
  white-space: nowrap;
  max-width: 5.8rem;
  text-align: right;
  line-height: 1.2;
}

.row-signal-dot {
  display: inline-block;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--ink) 28%, transparent);
}

.row-signal-dot.high {
  background: var(--signal);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--signal) 25%, transparent);
}

.row-signal-dot.medium {
  background: color-mix(in srgb, var(--signal) 60%, transparent);
}

.row-signal-dot.emerging {
  background: color-mix(in srgb, var(--ink) 30%, transparent);
}

.empty-state {
  padding: 2.5rem 1.25rem;
  text-align: center;
  color: var(--ink-muted);
}

.empty-state strong {
  display: block;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}

.empty-state p {
  margin: 0.35rem 0 0.75rem;
  font-size: 0.9rem;
  line-height: 1.4;
}

.empty-suggest-k {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 1rem 0 0.4rem !important;
}

.empty-suggest {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.empty-link {
  min-height: 2.1rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper-elevated);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
}

.empty-link:hover {
  border-color: var(--signal);
}

/* Profile sheet — full-viewport content, minimal locked chrome */
.sheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(18, 21, 26, 0.5);
  z-index: 80;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.sheet-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.sheet {
  position: fixed;
  z-index: 90;
  left: 0;
  right: 0;
  bottom: 0;
  /* Near-full screen on mobile so content is readable */
  height: min(96dvh, 100%);
  max-height: min(96dvh, 100%);
  background: linear-gradient(165deg, var(--paper-card), var(--paper-elevated) 45%, var(--paper));
  border: 1px solid var(--rule-strong);
  border-bottom: none;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: var(--shadow), var(--glow-lime);
  display: flex;
  flex-direction: column;
  transform: translateY(105%);
  transition: transform 0.22s ease-out;
  outline: none;
  overflow: hidden;
}

.sheet.open {
  transform: translateY(0);
}

/* Thin locked bar only — Scan/Full/Close. All dossier + sections scroll in .sheet-scroll */
.sheet-bar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  min-height: 48px;
  max-height: 56px;
  padding: 0.35rem 0.55rem 0.35rem 0.85rem;
  border-bottom: 1px solid var(--rule);
  background: rgba(8, 11, 16, 0.92);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  z-index: 3;
}

html[data-theme="paper"] .sheet-bar {
  background: rgba(255, 255, 255, 0.94);
}

.sheet-bar-text {
  min-width: 0;
  flex: 1;
}

.sheet-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0;
  line-height: 1.15;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sheet-type-line {
  margin: 0.1rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sheet-close {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  font-size: 1.35rem;
  line-height: 1;
  color: var(--ink-muted);
  display: grid;
  place-items: center;
}

/* Single scroll region = nearly full sheet (only thin bar is locked) */
.sheet-scroll {
  flex: 1 1 auto;
  min-height: 0;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding-bottom: max(1.5rem, env(safe-area-inset-bottom, 0));
}

.sheet-intro {
  padding: 0.55rem 1rem 0.35rem;
  border-bottom: 1px solid var(--rule);
  /* Must not create a nested scroll or sticky lock */
  position: static;
  overflow: visible;
}

.sheet-aliases {
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin: 0 0 0.45rem;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Instant dossier card at top of profile (PDF-inspired structure, own design) */
.sheet-quick {
  display: block;
  margin: 0 0 0.55rem;
  padding: 0;
  background: transparent;
  border: none;
}

.dossier {
  margin: 0;
  padding: 0.75rem 0.8rem 0.65rem;
  background: linear-gradient(150deg, var(--paper-card), var(--paper-elevated));
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.dossier-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin: 0 0 0.65rem;
}

.dossier-badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.22rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: var(--paper-elevated);
  color: var(--ink-muted);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dossier-badge.is-peptide {
  border-color: color-mix(in srgb, var(--peptide) 45%, var(--rule));
  color: var(--peptide);
  background: color-mix(in srgb, var(--peptide) 8%, var(--paper-elevated));
}

.dossier-badge.is-nonpeptide {
  border-color: color-mix(in srgb, var(--nonpeptide) 45%, var(--rule));
  color: var(--nonpeptide);
  background: color-mix(in srgb, var(--nonpeptide) 8%, var(--paper-elevated));
}

.dossier-badge.is-talk {
  border-color: color-mix(in srgb, var(--signal) 50%, var(--rule));
  color: color-mix(in srgb, var(--signal) 75%, var(--ink));
  background: color-mix(in srgb, var(--signal-soft) 35%, var(--paper-elevated));
}

.dossier-badge.is-cat {
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: none;
  font-size: 0.68rem;
}

.dossier-block {
  margin: 0 0 0.65rem;
}

.dossier-k {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--signal);
  margin: 0 0 0.28rem;
}

.dossier-what {
  padding-bottom: 0.55rem;
  border-bottom: 1px solid color-mix(in srgb, var(--rule) 80%, transparent);
  margin-bottom: 0.65rem;
}

.dossier-lead {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.38;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.dossier-sub {
  margin: 0.35rem 0 0;
  font-size: 0.88rem;
  line-height: 1.35;
  color: var(--ink-muted);
}

/* Fact grid — the “sudden readable” PDF energy */
.dossier-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  margin: 0 0 0.7rem;
}

.dg {
  min-width: 0;
  padding: 0.5rem 0.55rem;
  background: var(--paper-elevated);
  border: 1px solid var(--rule);
  border-radius: 5px;
  text-align: left;
  font: inherit;
  color: inherit;
  position: relative;
}

/* Clickable fact tiles → deep sections */
button.dg-jump {
  cursor: pointer;
  transition: border-color 0.12s ease, background 0.12s ease, box-shadow 0.12s ease;
  padding-right: 1.35rem;
}

button.dg-jump:hover,
button.dg-jump:focus-visible {
  border-color: var(--signal);
  background: color-mix(in srgb, var(--signal-soft) 35%, var(--paper-elevated));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--signal) 35%, transparent);
  outline: none;
}

button.dg-jump:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.dg-go {
  position: absolute;
  right: 0.4rem;
  top: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--signal);
  opacity: 0.55;
  line-height: 1;
}

button.dg-jump:hover .dg-go,
button.dg-jump:focus-visible .dg-go {
  opacity: 1;
}

button.dg-jump-block {
  display: block;
  width: 100%;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
  transition: border-color 0.12s ease, background 0.12s ease;
}

button.dg-jump-block:hover,
button.dg-jump-block:focus-visible {
  outline: none;
}

button.dossier-bro.dg-jump-block:hover,
button.dossier-bro.dg-jump-block:focus-visible {
  border-color: color-mix(in srgb, var(--peptide) 40%, var(--rule));
  background: color-mix(in srgb, var(--peptide) 12%, var(--paper-elevated));
}

button.dossier-watch.dg-jump-block:hover,
button.dossier-watch.dg-jump-block:focus-visible {
  background: color-mix(in srgb, var(--caution) 14%, var(--paper-elevated));
}

button.dg-jump-block .dossier-k .dg-go {
  position: static;
  margin-left: 0.25rem;
  opacity: 0.55;
}

button.dg-jump-block:hover .dg-go,
button.dg-jump-block:focus-visible .dg-go {
  opacity: 1;
}

.section.sec-flash {
  background: color-mix(in srgb, var(--signal-soft) 28%, transparent);
  transition: background 0.9s ease;
}

.dg-dose {
  grid-column: 1 / -1;
  background: color-mix(in srgb, var(--signal-soft) 28%, var(--paper-elevated));
  border-color: color-mix(in srgb, var(--signal) 35%, var(--rule));
}

.dg-k {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.18rem;
}

.dg-k em {
  font-style: normal;
  font-weight: 600;
  color: color-mix(in srgb, var(--signal) 70%, var(--ink-muted));
  letter-spacing: 0.04em;
}

.dg-v {
  display: block;
  font-size: 0.86rem;
  line-height: 1.32;
  color: var(--ink);
  font-weight: 600;
}

.dg-dose .dg-v {
  font-size: 0.95rem;
  font-weight: 700;
}

.dossier-goals {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.dossier-chip {
  font-size: 0.75rem;
  line-height: 1.2;
  padding: 0.28rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: var(--paper-elevated);
  color: var(--ink);
  max-width: 100%;
}

.dossier-bro {
  padding: 0.55rem 0.6rem;
  background: color-mix(in srgb, var(--peptide) 6%, var(--paper-elevated));
  border: 1px solid color-mix(in srgb, var(--peptide) 18%, var(--rule));
  border-radius: 5px;
}

.dossier-bro .dossier-k {
  color: var(--peptide);
}

.dossier-bro-v {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.38;
  color: var(--ink);
}

.dossier-watch {
  margin: 0 0 0.65rem;
  padding: 0.55rem 0.6rem;
  border-left: 3px solid var(--caution);
  background: color-mix(in srgb, var(--caution) 8%, var(--paper-elevated));
  border-radius: 0 5px 5px 0;
}

.dossier-watch .dossier-k {
  color: var(--caution);
}

.dossier-watch-v {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.35;
  color: var(--ink);
  font-weight: 550;
}

.dossier-rel-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.dossier-rel {
  min-height: 1.85rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid color-mix(in srgb, var(--peptide) 30%, var(--rule));
  border-radius: 999px;
  background: color-mix(in srgb, var(--peptide) 7%, var(--paper-elevated));
  font-size: 0.75rem;
  font-weight: 550;
  color: var(--peptide);
}

.dossier-rel:hover,
.dossier-rel:focus-visible {
  border-color: var(--peptide);
  background: color-mix(in srgb, var(--peptide) 14%, var(--paper-elevated));
}

.dossier-rel.is-plain {
  border-style: dashed;
  color: var(--ink-muted);
  background: var(--paper);
  cursor: default;
}

.dossier-foot {
  margin: 0.15rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  line-height: 1.35;
  color: var(--ink-muted);
}

@media (min-width: 560px) {
  .dossier-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
  .dg-dose {
    grid-column: 1;
    grid-row: 1 / span 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}

.sheet-jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem;
  margin: 0 0 0.55rem;
}

.jump-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-right: 0.15rem;
}

.jump-btn {
  min-height: 1.9rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper-elevated);
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
  color: var(--ink-muted);
}

.jump-btn:hover,
.jump-btn:focus-visible {
  border-color: var(--signal);
  color: var(--ink);
}

.side-callout {
  margin: 0.35rem 0 0.75rem;
  padding: 0.55rem 0.7rem;
  border-left: 3px solid var(--caution);
  background: color-mix(in srgb, var(--caution) 8%, var(--paper-elevated));
  font-size: 0.88rem;
  line-height: 1.35;
}

.side-callout strong {
  color: var(--caution);
}

.sheet-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.55rem;
}

#sec-dosing_ranges_reported,
#sec-reported_side_effects_cautions,
#sec-reported_benefits,
#sec-how_it_feels_over_time,
#sec-common_stacks {
  scroll-margin-top: 0.5rem;
}

.meta-chip {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--paper);
}

.meta-chip.signal-high {
  border-color: var(--signal);
  color: color-mix(in srgb, var(--signal) 80%, var(--ink));
}

.sheet-disclaimer {
  font-size: 0.72rem;
  color: var(--ink-muted);
  border-left: 3px solid var(--signal);
  padding: 0.3rem 0.5rem;
  background: color-mix(in srgb, var(--paper) 70%, transparent);
  margin: 0 0 0.45rem;
  line-height: 1.35;
}

/* Body is NOT a nested scroller — parent .sheet-scroll owns scroll */
.sheet-body {
  flex: none;
  overflow: visible;
  padding: 0.15rem 1rem 2.5rem;
}

.sheet-loading,
.sheet-error {
  padding: 2rem 0.5rem;
  text-align: center;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.section {
  border-bottom: 1px solid var(--rule);
}

.section-toggle {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  min-height: var(--touch);
  padding: 0.65rem 0;
  text-align: left;
}

.section-toggle .sec-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-toggle .sec-title.caution {
  color: var(--caution);
}

.section-toggle .sec-meta {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--ink-muted);
  white-space: nowrap;
}

.section-panel {
  display: none;
  padding: 0 0 0.85rem;
}

.section.open .section-panel {
  display: block;
}

.bullet-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.bullet-list li {
  position: relative;
  padding: 0.35rem 0.35rem 0.35rem 0.75rem;
  font-size: 0.9rem;
  line-height: 1.38;
  border-left: 3px solid color-mix(in srgb, var(--rule) 80%, transparent);
  margin-bottom: 0.28rem;
  border-radius: 0 3px 3px 0;
  background: color-mix(in srgb, var(--paper) 55%, transparent);
}

.bullet-list li.tone-community {
  border-left-color: var(--signal);
  background: color-mix(in srgb, var(--signal-soft) 12%, transparent);
}

.bullet-list li.tone-trial {
  border-left-color: var(--peptide);
  background: color-mix(in srgb, var(--peptide) 5%, transparent);
}

.bullet-list li.tone-mixed {
  border-left-color: color-mix(in srgb, var(--ink-muted) 45%, var(--rule));
}

.bullet-list li::before {
  content: none;
}

.prov {
  display: inline-block;
  margin-left: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-muted);
  background: color-mix(in srgb, var(--rule) 45%, transparent);
  padding: 0.08rem 0.35rem;
  border-radius: 999px;
  vertical-align: baseline;
  white-space: nowrap;
  border: 1px solid transparent;
}

.prov-community {
  color: color-mix(in srgb, var(--signal) 85%, var(--ink));
  background: color-mix(in srgb, var(--signal-soft) 40%, transparent);
  border-color: color-mix(in srgb, var(--signal) 30%, transparent);
}

.prov-trial {
  color: var(--peptide);
  background: color-mix(in srgb, var(--peptide) 10%, transparent);
  border-color: color-mix(in srgb, var(--peptide) 25%, transparent);
}

.prov-anecdote {
  color: var(--nonpeptide);
  background: color-mix(in srgb, var(--nonpeptide) 10%, transparent);
  border-color: color-mix(in srgb, var(--nonpeptide) 22%, transparent);
}

.prov-animal,
.prov-in-vitro {
  color: var(--ink-muted);
  background: color-mix(in srgb, var(--rule) 35%, transparent);
}

.sheet-end-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1.25rem 0 0.5rem;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--rule);
}

.sheet-end-actions .btn-ghost {
  min-height: 2.25rem;
  font-size: 0.72rem;
}

.related-list,
.plain-list {
  margin: 0;
  padding-left: 1.1rem;
}

.related-list li,
.plain-list li {
  margin-bottom: 0.25rem;
  font-size: 0.92rem;
}

.related-list button {
  color: var(--peptide);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-size: inherit;
}

/* Footer disclaimer */
.disclaimer-bottom {
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.35)), var(--disclaimer-bg);
  color: var(--disclaimer-fg);
  padding: 2rem 1.25rem 3rem;
  margin-top: 1.5rem;
  border-top: 1px solid var(--rule);
}

.disclaimer-bottom-inner {
  max-width: 720px;
  margin: 0 auto;
}

.disclaimer-bottom h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 0.75rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.disclaimer-bottom p {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--ink-muted);
  margin: 0 0 0.75rem;
}

.disclaimer-bottom a {
  color: var(--signal);
  text-decoration: none;
  font-weight: 600;
}

.disclaimer-bottom a:hover {
  text-decoration: underline;
}

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

body.sheet-open {
  overflow: hidden;
}

/* Desktop */
@media (min-width: 900px) {
  .chrome-sticky {
    top: 2.5rem;
  }

  .chrome-sticky-inner,
  .chrome-flow {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  .workspace {
    grid-template-columns: 2.75rem 1fr;
    padding: 0 1.5rem 5rem;
    max-width: 1180px;
  }

  .az-rail {
    flex-direction: column;
    position: sticky;
    top: 7.5rem; /* disclaimer + compact search only */
    height: fit-content;
    max-height: calc(100vh - 9rem);
    overflow-y: auto;
    overflow-x: hidden;
    border-bottom: none;
    border-right: 1px solid var(--rule);
    padding: 0.5rem 0.25rem;
    background: transparent;
    align-self: start;
  }

  .az-btn {
    width: 100%;
  }

  .main-col {
    min-width: 0;
  }

  .sheet {
    left: auto;
    right: 0;
    top: 0;
    bottom: 0;
    width: min(520px, 46vw);
    height: 100%;
    max-height: 100%;
    border-radius: 0;
    transform: translateX(105%);
  }

  .sheet.open {
    transform: translateX(0);
  }

  .sheet-title {
    font-size: 1.35rem;
    white-space: normal;
  }
}

@media (min-width: 1100px) {
  .sheet {
    width: min(560px, 42vw);
  }
}