/* --------------------------------------------------------------------------
   BreatheFree — Editorial Public Health Monograph & Scientific Journal
   Designed with human editorial typography, restrained hierarchy, and deep
   botanical / forest dark palette.
   -------------------------------------------------------------------------- */

:root {
  /* Editorial Palette: Deep forest soil & botanical greens */
  --bg-deep: #050a07;
  --bg-surface: #0a120d;
  --bg-elevated: #101c14;
  --bg-muted: #15241b;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-accent: rgba(52, 211, 153, 0.3);

  --text-primary: #f2f7f4;
  --text-secondary: #a3b8ac;
  --text-tertiary: #677d70;
  --text-contrast: #ffffff;

  --accent-sage: #34d399;
  --accent-emerald: #10b981;
  --accent-coral: #e06c60;
  --accent-amber: #e5a952;
  --accent-cyan: #38bdf8;

  /* Typography Stacks */
  --font-serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --transition-smooth: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.editorial-body {
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  /* Deep forest wallpaper with tasteful dark botanical overlay */
  background: 
    linear-gradient(180deg, rgba(5, 10, 7, 0.94) 0%, rgba(7, 14, 10, 0.92) 50%, rgba(5, 10, 7, 0.97) 100%),
    url('forest_bg.webp');
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* Site Layout Container */
.site-shell {
  width: 100%;
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* --------------------------------------------------------------------------
   Masthead & Meta Header (Top Rail)
   -------------------------------------------------------------------------- */
.masthead-bar {
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(5, 10, 7, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-size: 0.78rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

.masthead-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
  gap: 1.5rem;
}

.masthead-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.meta-label {
  color: var(--accent-sage);
  font-weight: 600;
}

.live-ticker-text {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
}

.stat-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-coral);
  display: inline-block;
  box-shadow: 0 0 6px var(--accent-coral);
}

.btn-text-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.btn-text-link:hover {
  color: var(--text-contrast);
}

/* --------------------------------------------------------------------------
   Site Header & Editorial Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(7, 13, 9, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.brand-monogram {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text-contrast);
}

.brand-mark {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  border: 1px solid var(--accent-sage);
  color: var(--accent-sage);
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.brand-period {
  color: var(--accent-sage);
}

.editorial-nav {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}

.nav-item {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: var(--transition-smooth);
  position: relative;
  padding: 0.25rem 0;
}

.nav-item:hover {
  color: var(--text-contrast);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-minimal {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-minimal:hover {
  background: var(--bg-elevated);
  border-color: var(--accent-sage);
  color: var(--text-contrast);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--text-primary);
}

/* --------------------------------------------------------------------------
   Section Structure & Eyebrows
   -------------------------------------------------------------------------- */
.section-lead {
  padding: 4.5rem 0 3.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.section-editorial {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent-sage);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.eyebrow-num {
  border-right: 1px solid var(--border-medium);
  padding-right: 0.6rem;
  font-weight: 600;
}

.editorial-section-header {
  margin-bottom: 3.5rem;
}

.header-split {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: baseline;
}

.editorial-heading {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.2vw, 2.8rem);
  font-weight: 400;
  color: var(--text-contrast);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.editorial-subheading {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Lead Story (Hero) Section
   -------------------------------------------------------------------------- */
.lead-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 4rem;
  align-items: start;
}

.lead-headline {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 4.5vw, 4rem);
  font-weight: 300;
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--text-contrast);
  margin-bottom: 1.8rem;
}

.lead-headline em {
  font-style: italic;
  color: #a8dfc1;
  font-weight: 400;
}

.lead-intro {
  font-size: 1.18rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 680px;
}

.lead-metadata {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
}

.meta-block .meta-title {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.3rem;
}

.meta-block .meta-val {
  font-size: 0.88rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* Analytical Observation Card */
.observation-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 2rem;
  position: relative;
}

.observation-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border-subtle);
}

.observation-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
}

.live-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-coral);
  box-shadow: 0 0 8px var(--accent-coral);
}

.observation-data {
  margin-bottom: 1.8rem;
}

.data-value {
  font-family: var(--font-serif);
  font-size: 4rem;
  line-height: 1;
  font-weight: 300;
  color: var(--accent-coral);
  margin-bottom: 0.6rem;
}

.data-caption {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.observation-benchmark {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.2rem;
  margin-bottom: 1.5rem;
}

.benchmark-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  padding: 0.4rem 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
}

.b-lbl {
  color: var(--text-tertiary);
}

.b-val {
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.link-editorial {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--accent-sage);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.link-editorial:hover {
  text-decoration: underline;
  color: #fff;
}

/* --------------------------------------------------------------------------
   Substance Taxonomy (Editorial Grid)
   -------------------------------------------------------------------------- */
.taxonomy-filter-rail {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1rem;
}

.rail-btn {
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  padding: 0.45rem 1rem;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.rail-btn .count {
  color: var(--text-tertiary);
}

.rail-btn:hover {
  color: var(--text-contrast);
  border-color: var(--border-medium);
}

.rail-btn.active {
  background: var(--bg-elevated);
  border-color: var(--accent-sage);
  color: var(--accent-sage);
}

.taxonomy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.8rem;
  margin-bottom: 4rem;
}

.taxonomy-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.taxonomy-card:hover {
  border-color: var(--border-medium);
  background: var(--bg-elevated);
}

.taxonomy-meta-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  margin-bottom: 1rem;
}

.taxonomy-category {
  color: var(--accent-sage);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.taxonomy-marker {
  color: var(--text-tertiary);
}

.taxonomy-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-contrast);
  margin-bottom: 0.8rem;
  line-height: 1.25;
}

.taxonomy-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 1.4rem;
  line-height: 1.55;
}

.taxonomy-stats-table {
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  margin-bottom: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.t-stat-row {
  display: flex;
  justify-content: space-between;
  padding: 0.25rem 0;
}

.t-stat-row .lbl {
  color: var(--text-tertiary);
}

.t-stat-row .val {
  color: var(--text-primary);
  font-weight: 500;
}

.taxonomy-pathology-list {
  list-style: none;
  font-size: 0.86rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.taxonomy-pathology-list li {
  position: relative;
  padding-left: 1.2rem;
  margin-bottom: 0.5rem;
  line-height: 1.45;
}

.taxonomy-pathology-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent-coral);
}

.taxonomy-fallacy-box {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
  font-size: 0.82rem;
}

.taxonomy-fallacy-box .fallacy-header {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--accent-amber);
  margin-bottom: 0.3rem;
  display: block;
}

.taxonomy-fallacy-box p {
  color: var(--text-secondary);
  line-height: 1.45;
}

/* --------------------------------------------------------------------------
   Chemical Monograph Inspector
   -------------------------------------------------------------------------- */
.chemical-monograph {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 2.5rem;
}

.monograph-lead {
  margin-bottom: 1.8rem;
}

.monograph-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--accent-sage);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.4rem;
}

.monograph-lead h3 {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 400;
  color: var(--text-contrast);
  margin-bottom: 0.4rem;
}

.monograph-lead p {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.chemical-selector-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.8rem;
}

.chem-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.chem-btn:hover {
  border-color: var(--border-medium);
}

.chem-btn.active {
  border-color: var(--accent-sage);
  background: var(--bg-elevated);
}

.chem-symbol {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-sage);
  font-weight: 600;
}

.chem-name {
  font-size: 0.84rem;
  color: var(--text-primary);
}

.chemical-inspector-card {
  background: var(--bg-deep);
  border-left: 2px solid var(--accent-sage);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1.5rem 1.8rem;
}

.chem-inspect-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--text-contrast);
  margin-bottom: 0.3rem;
}

.chem-inspect-source {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-tertiary);
  display: block;
  margin-bottom: 0.8rem;
}

.chem-inspect-mechanism {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Pathology & Human Anatomy Explorer
   -------------------------------------------------------------------------- */
.pathology-layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 2.5rem;
  align-items: start;
}

.pathology-tabs {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.path-tab {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.3rem;
  cursor: pointer;
  text-align: left;
  transition: var(--transition-smooth);
}

.path-tab:hover {
  background: var(--bg-elevated);
  border-color: var(--border-medium);
}

.path-tab.active {
  background: var(--bg-elevated);
  border-color: var(--accent-sage);
  box-shadow: inset 3px 0 0 var(--accent-sage);
}

.tab-index {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-sage);
  font-weight: 600;
}

.tab-meta strong {
  display: block;
  font-size: 0.94rem;
  color: var(--text-contrast);
  margin-bottom: 0.2rem;
}

.tab-meta span {
  font-size: 0.78rem;
  color: var(--text-tertiary);
}

.pathology-content {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 2.8rem;
}

.path-header-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  color: var(--accent-coral);
  letter-spacing: 0.08em;
  margin-bottom: 0.6rem;
}

.path-main-title {
  font-family: var(--font-serif);
  font-size: 2.1rem;
  font-weight: 400;
  color: var(--text-contrast);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.path-summary {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.path-lesions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
  margin-bottom: 2rem;
}

.lesion-item {
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.3rem;
}

.lesion-item h4 {
  font-size: 0.94rem;
  color: var(--text-contrast);
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.lesion-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.path-citations {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-tertiary);
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
}

/* --------------------------------------------------------------------------
   Chronology of Human Repair (Timeline)
   -------------------------------------------------------------------------- */
.chronology-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 2.5rem;
}

.chronology-scrubber {
  margin-bottom: 2.5rem;
}

.scrubber-legend {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-tertiary);
  margin-bottom: 0.8rem;
  overflow-x: auto;
}

.range-slider {
  width: 100%;
  -webkit-appearance: none;
  background: var(--bg-deep);
  height: 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  outline: none;
  cursor: pointer;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-sage);
  border: 2px solid var(--bg-deep);
  cursor: pointer;
  transition: transform 0.15s ease;
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.chronology-card {
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2rem;
}

.chrono-stage-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  margin-bottom: 0.8rem;
}

.chrono-badge {
  color: var(--accent-sage);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.chrono-timeframe {
  color: var(--text-secondary);
  font-weight: 600;
}

.chrono-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--text-contrast);
  margin-bottom: 0.8rem;
}

.chrono-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.8rem;
}

.chrono-milestones {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
}

.milestone-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1rem;
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.milestone-item strong {
  color: var(--text-contrast);
  display: block;
  margin-bottom: 0.2rem;
}

/* --------------------------------------------------------------------------
   Personal Exposure & Financial Ledger (Calculator)
   -------------------------------------------------------------------------- */
.ledger-container {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 2.5rem;
}

.ledger-inputs {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 2.2rem;
}

.ledger-fieldset {
  margin-bottom: 1.4rem;
}

.field-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: 0.4rem;
}

.field-label-split {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.4rem;
}

.field-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-sage);
}

.field-input {
  width: 100%;
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  font-size: 0.92rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition-smooth);
}

.field-input:focus {
  border-color: var(--accent-sage);
}

.ledger-row {
  display: flex;
  gap: 1rem;
}

.ledger-row .col {
  flex: 1;
}

.btn-editorial-primary {
  width: 100%;
  background: var(--accent-sage);
  color: #050a07;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-editorial-primary:hover {
  background: #2ebd84;
}

.ledger-sheet {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.sheet-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.8rem;
  margin-bottom: 1.8rem;
}

.sheet-title {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  color: var(--text-tertiary);
  letter-spacing: 0.08em;
}

.sheet-stamp {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-sage);
  border: 1px solid var(--accent-sage);
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-sm);
}

.sheet-hero-metric {
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.8rem;
  text-align: center;
  margin-bottom: 1.8rem;
}

.hero-lbl {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 0.4rem;
}

.hero-num {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 300;
  color: var(--accent-coral);
  line-height: 1.1;
  margin-bottom: 0.3rem;
}

.hero-sub {
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

.sheet-grid-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-bottom: 2rem;
}

.sheet-metric-cell {
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.2rem;
}

.cell-lbl {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-tertiary);
  display: block;
  margin-bottom: 0.3rem;
}

.cell-val {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  display: block;
  line-height: 1.1;
  margin-bottom: 0.2rem;
}

.cell-sub {
  font-size: 0.74rem;
  color: var(--text-tertiary);
}

.text-alert { color: var(--accent-coral); }
.text-warning { color: var(--accent-amber); }
.text-positive { color: var(--accent-sage); }
.text-neutral { color: var(--accent-cyan); }

.btn-editorial-secondary {
  display: block;
  text-align: center;
  background: var(--bg-deep);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.8rem;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.btn-editorial-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--accent-sage);
  color: var(--text-contrast);
}

/* --------------------------------------------------------------------------
   Clinical Research Bulletins
   -------------------------------------------------------------------------- */
.bulletin-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1rem;
  flex-wrap: wrap;
}

.bulletin-filter-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.b-tab {
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.b-tab:hover {
  color: var(--text-contrast);
  border-color: var(--border-medium);
}

.b-tab.active {
  background: var(--bg-surface);
  border-color: var(--accent-sage);
  color: var(--accent-sage);
}

.bulletin-search {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.9rem;
  font-size: 0.84rem;
  color: var(--text-primary);
  outline: none;
  width: 280px;
  font-family: inherit;
  transition: var(--transition-smooth);
}

.bulletin-search:focus {
  border-color: var(--accent-sage);
}

.bulletins-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.8rem;
}

.bulletin-article {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.bulletin-article:hover {
  border-color: var(--border-medium);
  background: var(--bg-elevated);
}

.bulletin-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  margin-bottom: 0.8rem;
}

.bulletin-tag {
  color: var(--accent-sage);
  text-transform: uppercase;
}

.bulletin-date {
  color: var(--text-tertiary);
}

.bulletin-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--text-contrast);
  line-height: 1.3;
  margin-bottom: 0.8rem;
}

.bulletin-snippet {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.4rem;
  flex-grow: 1;
}

.bulletin-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-sage);
  text-decoration: none;
}

.bulletin-link:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Cessation Protocols & Directory
   -------------------------------------------------------------------------- */
.protocols-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.8rem;
  margin-bottom: 4rem;
}

.protocol-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2.2rem;
}

.card-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--accent-sage);
  line-height: 1;
  margin-bottom: 0.8rem;
}

.protocol-card h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text-contrast);
  margin-bottom: 0.6rem;
}

.card-lead {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.2rem;
}

.protocol-steps {
  list-style: none;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.protocol-steps li {
  margin-bottom: 0.8rem;
  line-height: 1.45;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.04);
  padding-bottom: 0.6rem;
}

.protocol-steps strong {
  color: var(--text-contrast);
}

/* Help Desk Directory */
.helpline-directory {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 2.5rem;
}

.directory-lead {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1rem;
}

.dir-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-sage);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.3rem;
}

.directory-lead h3 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--text-contrast);
  margin-bottom: 0.3rem;
}

.directory-lead p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.directory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
}

.dir-cell {
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.2rem;
}

.dir-region {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-tertiary);
  display: block;
  margin-bottom: 0.2rem;
}

.dir-phone {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent-sage);
  text-decoration: none;
  margin-bottom: 0.2rem;
}

.dir-phone:hover {
  text-decoration: underline;
}

.dir-org {
  font-size: 0.76rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   Editorial Footer
   -------------------------------------------------------------------------- */
.editorial-footer {
  background: #030604;
  border-top: 1px solid var(--border-subtle);
  padding: 4.5rem 0 2rem;
  margin-top: 5rem;
}

.footer-layout {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3.5rem;
  margin-bottom: 3.5rem;
}

.footer-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 1.2rem 0;
  max-width: 500px;
}

.footer-legal-notice {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  border-left: 2px solid var(--border-medium);
  padding-left: 0.8rem;
  line-height: 1.5;
  max-width: 520px;
}

.col-header {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  color: var(--text-tertiary);
  letter-spacing: 0.08em;
  margin-bottom: 1.2rem;
}

.col-links {
  list-style: none;
}

.col-links li {
  margin-bottom: 0.6rem;
}

.col-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.86rem;
  transition: var(--transition-smooth);
}

.col-links a:hover {
  color: var(--text-contrast);
}

.footer-colophon {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

/* --------------------------------------------------------------------------
   Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .header-split {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .lead-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .pathology-layout {
    grid-template-columns: 1fr;
  }

  .ledger-container {
    grid-template-columns: 1fr;
  }

  .footer-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .masthead-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }

  .editorial-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .path-lesions-grid,
  .lead-metadata,
  .sheet-grid-metrics {
    grid-template-columns: 1fr;
  }

  .bulletin-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .bulletin-search {
    width: 100%;
  }

  .footer-colophon {
    flex-direction: column;
    gap: 0.5rem;
  }
}