/* Vitaminnet - Warm Humanist Editorial Stylesheet */
:root {
  --color-primary: #c2541a;
  --color-secondary: #8a6a3f;
  --color-accent: #e9b949;
  --color-surface: #fbf5ec;
  --color-surface-card: #f5ece0;
  --color-ink: #2b2118;
  --color-border: rgba(138, 106, 63, 0.25);
  --font-display: 'Arvo', Georgia, serif;
  --font-body: 'Nunito Sans', system-ui, -apple-system, sans-serif;
}

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

html {
  font-size: 16px;
  background-color: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  background-color: var(--color-surface);
  color: var(--color-ink);
  overflow-x: hidden;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

a:hover, a:focus {
  color: #9e3f0e;
  text-decoration-color: var(--color-primary);
}

/* Base Shell Grid Layout (CHROME) */
.vn-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
  max-width: 1320px;
  margin: 0 auto;
}

/* Sidebar Index Rail (Left Column - FIRST in source order) */
.vn-rail-nav {
  background-color: #f4ea Single;
  background-color: rgba(138, 106, 63, 0.05);
  border-right: 1px solid var(--color-border);
  padding: 2.5rem 1.5rem 3rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.vn-brand-anchor {
  text-decoration: none;
  display: block;
}

.vn-brand-title {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.vn-brand-tagline {
  font-size: 0.85rem;
  color: var(--color-secondary);
  margin-top: 0.35rem;
  font-weight: 600;
}

.vn-menu-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.vn-menu-link {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-ink);
  text-decoration: none;
  padding: 0.4rem 0.6rem;
  border-radius: 4px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.vn-menu-link:hover, .vn-menu-link.is-active {
  background-color: var(--color-accent);
  color: var(--color-ink);
}

.vn-index-block {
  margin-top: 1rem;
}

.vn-index-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--color-primary);
}

.vn-index-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.vn-index-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-size: 0.92rem;
  gap: 0.4rem;
}

.vn-index-item-link {
  color: var(--color-ink);
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
}

.vn-index-item-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.vn-index-dots {
  flex-grow: 1;
  border-bottom: 1px dotted var(--color-secondary);
  opacity: 0.5;
  margin: 0 0.2rem;
  position: relative;
  top: -3px;
}

.vn-index-num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--color-secondary);
  font-weight: 700;
}

.vn-rail-footer {
  margin-top: auto;
  font-size: 0.8rem;
  color: var(--color-secondary);
  line-height: 1.4;
  border-top: 1px stroke var(--color-border);
  padding-top: 1rem;
}

/* Main Content Area (Right Column) */
.vn-main-stage {
  padding: 3rem 3.5rem;
  min-width: 0;
}

/* Stacked Masthead (HOMEPAGE OPENING) */
.vn-stacked-header {
  margin-bottom: 3.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 2px stroke var(--color-border);
  border-bottom-style: double;
}

.vn-stacked-masthead {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: 1.25rem;
  line-height: 0.95;
}

.vn-mast-word-1 {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.vn-mast-word-2 {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 400;
  color: var(--color-ink);
  font-style: italic;
  margin-left: 0.2rem;
}

.vn-mast-word-3 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-secondary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.vn-masthead-sub {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 2rem;
  padding-left: 0.2rem;
}

.vn-intro-column {
  max-width: 680px;
  background-color: var(--color-surface-card);
  padding: 1.75rem 2rem;
  border-left: 4px solid var(--color-primary);
  border-radius: 0 8px 8px 0;
  box-shadow: 0 2px 8px rgba(43, 33, 24, 0.04);
}

/* Editorial Multi-Column Article Presentation */
.vn-section-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--color-ink);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.vn-newsprint-flow {
  column-count: 2;
  column-gap: 2.5rem;
  column-rule: 1px solid var(--color-border);
  margin-bottom: 3rem;
}

.vn-flow-item {
  break-inside: avoid;
  margin-bottom: 2rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--color-border);
}

.vn-flow-item:last-child {
  border-bottom: none;
}

.vn-flow-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.vn-flow-title a {
  color: var(--color-ink);
  text-decoration: none;
}

.vn-flow-title a:hover {
  color: var(--color-primary);
}

.vn-flow-meta {
  font-size: 0.82rem;
  color: var(--color-secondary);
  margin-bottom: 0.6rem;
  font-weight: 600;
}

.vn-flow-summary {
  font-size: 0.98rem;
  color: #403328;
  line-height: 1.5;
}

/* Pillar Showcase Box on Homepage */
.vn-pillar-callout {
  background-color: #f2e4d2;
  border: 1px solid rgba(138, 106, 63, 0.3);
  border-radius: 8px;
  padding: 2rem;
  margin-top: 3rem;
  margin-bottom: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.vn-pillar-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.vn-pillar-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  line-height: 1.25;
}

.vn-pillar-title a {
  color: var(--color-ink);
  text-decoration: none;
}

.vn-pillar-title a:hover {
  color: var(--color-primary);
}

.vn-pillar-text {
  font-size: 1rem;
  color: #382c22;
}

/* Single Article & Page Layouts */
.vn-article-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.vn-article-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  line-height: 1.2;
  color: var(--color-ink);
  margin-bottom: 1rem;
}

.vn-article-lead {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--color-secondary);
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.vn-article-date {
  font-size: 0.88rem;
  color: var(--color-secondary);
  font-weight: 600;
  display: inline-block;
  background-color: rgba(138, 106, 63, 0.1);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
}

.vn-article-body {
  max-width: 760px;
  font-size: 1.08rem;
  line-height: 1.75;
  color: #2b2118;
}

/* Explicit List Rules for Both Article Body AND Intro Prose (Mandatory requirement!) */
.vn-article-body ul,
.vn-article-body ol,
.vn-intro-prose ul,
.vn-intro-prose ol {
  padding-left: 1.75rem;
  margin-top: 1.25rem;
  margin-bottom: 1.25rem;
}

.vn-article-body li,
.vn-intro-prose li {
  margin-bottom: 0.5rem;
  line-height: 1.65;
}

.vn-article-body h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-ink);
  line-height: 1.3;
}

.vn-article-body h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
  line-height: 1.35;
}

.vn-article-body p {
  margin-bottom: 1.5rem;
}

.vn-article-body blockquote {
  border-left: 4px solid var(--color-accent);
  background-color: rgba(233, 185, 73, 0.12);
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
  font-style: italic;
  color: var(--color-ink);
  border-radius: 0 6px 6px 0;
}

.vn-article-body hr {
  border: none;
  border-top: 1px stroke var(--color-border);
  margin: 2.5rem 0;
}

/* Overflow-x Containers for Tables, Code and Pre */
.vn-article-body table,
.vn-intro-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.vn-article-body th,
.vn-article-body td,
.vn-intro-prose th,
.vn-intro-prose td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  text-align: left;
  font-size: 0.95rem;
}

.vn-article-body th,
.vn-intro-prose th {
  background-color: rgba(138, 106, 63, 0.12);
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-ink);
}

.vn-article-body pre,
.vn-intro-prose pre {
  overflow-x: auto;
  padding: 1.25rem;
  background: #231b14;
  color: #fbf5ec;
  border-radius: 6px;
  margin: 1.75rem 0;
  font-size: 0.9rem;
  max-width: 100%;
}

.vn-article-body code,
.vn-intro-prose code {
  font-family: monospace;
  word-break: break-word;
}

/* Article Footnote / Warning Callout Box */
.vn-disclaimer-box {
  background-color: rgba(194, 84, 26, 0.07);
  border: 1px stroke var(--color-primary);
  border-radius: 6px;
  padding: 1.25rem;
  margin-top: 3rem;
  font-size: 0.9rem;
  color: var(--color-ink);
  line-height: 1.5;
}

.vn-disclaimer-title {
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
}

/* Site Footer in Main Stage */
.vn-site-footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--color-secondary);
  flex-wrap: wrap;
  gap: 1rem;
}

.vn-footer-links {
  display: flex;
  gap: 1.25rem;
  list-style: none;
}

/* Responsive Media Queries (Specifically checked for 375px mobile) */
@media (max-width: 960px) {
  .vn-shell {
    grid-template-columns: 240px minmax(0, 1fr);
  }
  .vn-main-stage {
    padding: 2.5rem 2rem;
  }
  .vn-mast-word-1 { font-size: 3.6rem; }
  .vn-mast-word-2 { font-size: 2.5rem; }
  .vn-mast-word-3 { font-size: 2rem; }
}

@media (max-width: 768px) {
  .vn-shell {
    grid-template-columns: minmax(0, 1fr);
    display: flex;
    flex-direction: column;
  }

  .vn-rail-nav {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 1.25rem 1.5rem;
    gap: 1.25rem;
  }

  .vn-brand-anchor {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
  }

  .vn-brand-title {
    font-size: 1.5rem;
  }

  .vn-brand-tagline {
    margin-top: 0;
  }

  .vn-menu-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.4rem 1rem;
  }

  .vn-menu-link {
    font-size: 0.95rem;
    padding: 0.25rem 0.5rem;
  }

  /* Hide detailed TOC rail section list on mobile horizontal bar to keep it compact */
  .vn-index-block {
    display: none;
  }

  .vn-rail-footer {
    display: none;
  }

  .vn-main-stage {
    padding: 1.75rem 1.25rem;
  }

  .vn-mast-word-1 { font-size: 2.8rem; }
  .vn-mast-word-2 { font-size: 2rem; }
  .vn-mast-word-3 { font-size: 1.6rem; }

  .vn-newsprint-flow {
    column-count: 1;
    column-gap: 0;
  }

  .vn-article-title {
    font-size: 1.9rem;
  }
}