/* ==========================================================================
   ORTHO TIPPS - "ORTHO FIELD GUIDE" DESIGN SYSTEM
   Domain: ortho-tipps.info
   Theme: Practical Field Guide / Workbox / Observational Notebook
   Strictly no raster graphics for UI. Clean SVGs, editorial typography & photography.
   ========================================================================== */

:root {
  /* Color Palette - Field Guide System */
  --bg-sand: #F7F5F0;             /* Warm light grey / pale limestone */
  --bg-sand-light: #FDFAF6;       /* Clean paper white */
  --bg-sand-card: #FFFFFF;        /* Crisp card base */
  --bg-sand-muted: #EFECE5;       /* Muted technical surface */
  --bg-sand-dark: #E4E0D6;        /* Darker limestone line */
  
  --text-anthracite: #1E2421;     /* Deep anthracite / ink */
  --text-anthracite-muted: #4F5852; /* Charcoal field guide text */
  --text-anthracite-subtle: #79827B;/* Technical metadata / labels */

  --green-forest: #20352A;        /* Muted deep forest green */
  --green-forest-light: #2C4839;  /* Secondary deep green */
  --green-sage: #D3E0D6;          /* Pale sage accent background */
  --green-sage-dark: #587563;     /* Muted sage line/tag */

  --accent-mustard: #C78D20;      /* Technical mustard yellow */
  --accent-mustard-bg: #FCF4E4;   /* Soft mustard alert/note background */
  --accent-mustard-border: #E8BF6C;

  --accent-coral: #C54E38;        /* Muted red/coral for Red Flags & alert points */
  --accent-coral-bg: #FBECE9;     /* Soft alert highlight */
  --accent-coral-border: #EAA79A;

  --accent-navy: #1E314B;         /* Technical dark navy */
  --accent-navy-bg: #EBF1F8;

  --border-field: #DDD7CB;        /* Crisp guide rule line */
  --border-field-subtle: #ECE7DC;  /* Soft separator line */
  --border-dark: #1E2421;

  /* Typography */
  --font-family-sans: 'Space Grotesk', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-family-mono: 'Space Mono', 'SFMono-Regular', Consolas, "Liberation Mono", Menlo, Courier, monospace;

  /* Field Guide Grids & Measurements */
  --container-max: 1240px;
  --header-height: 72px;
  --header-height-compact: 56px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  
  /* Shadows - Minimal, crisp technical stamps */
  --shadow-guide: 0 2px 0 var(--border-field);
  --shadow-field-elevated: 0 4px 14px rgba(30, 36, 33, 0.06), 0 1px 3px rgba(30, 36, 33, 0.04);
  --shadow-focus: 0 0 0 3px rgba(199, 141, 32, 0.35);

  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background-color: var(--bg-sand);
  color: var(--text-anthracite);
}

body {
  font-family: var(--font-family-sans);
  line-height: 1.62;
  font-weight: 400;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-sand);
  background-image: 
    radial-gradient(var(--border-field-subtle) 0.75px, transparent 0.75px);
  background-size: 24px 24px;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.22;
  color: var(--text-anthracite);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4.2vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.2rem); }
h3 { font-size: clamp(1.2rem, 2.1vw, 1.5rem); }
h4 { font-size: 1.15rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-anthracite-muted);
}
p:last-child { margin-bottom: 0; }

a {
  color: var(--green-forest);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}
a:hover {
  color: var(--accent-mustard);
  text-decoration-color: var(--accent-mustard);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Interactive Accessibility Focus */
:focus-visible {
  outline: 3px solid var(--accent-mustard);
  outline-offset: 2px;
}

/* Layout Utilities */
.guide-container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 3.5vw, 2.5rem);
  padding-right: clamp(1rem, 3.5vw, 2.5rem);
}

.section-spacing {
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

/* Grid & Guide System Markers */
.field-number {
  font-family: var(--font-family-mono);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--accent-mustard);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-transform: uppercase;
}

.field-number::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--accent-mustard);
  border-radius: 50%;
}

.field-number.large {
  font-size: clamp(2rem, 5vw, 3.6rem);
  color: rgba(30, 36, 33, 0.12);
  line-height: 1;
  user-select: none;
}
.field-number.large::before { display: none; }

.field-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.76rem;
  font-family: var(--font-family-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  padding: 0.25rem 0.55rem;
  background: var(--bg-sand-muted);
  border: 1px solid var(--border-field);
  border-radius: var(--radius-sm);
  color: var(--text-anthracite);
}

.field-tag.mustard {
  background: var(--accent-mustard-bg);
  border-color: var(--accent-mustard-border);
  color: #7A530E;
}
.field-tag.sage {
  background: var(--green-sage);
  border-color: #B4C8B8;
  color: #23422F;
}
.field-tag.coral {
  background: var(--accent-coral-bg);
  border-color: var(--accent-coral-border);
  color: #8C2917;
}

/* Orientierungs-Linie / Field Path System */
.orientation-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  padding: 0.9rem 1.2rem;
  background: var(--bg-sand-card);
  border: 1px solid var(--border-field);
  border-left: 4px solid var(--green-forest);
  border-radius: var(--radius-sm);
  margin: 1.5rem 0;
  font-family: var(--font-family-mono);
  font-size: 0.85rem;
}
.orientation-step {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 600;
  color: var(--text-anthracite);
}
.orientation-step span.num {
  color: var(--accent-mustard);
}
.orientation-arrow {
  color: var(--text-anthracite-subtle);
  font-weight: bold;
}

/* Buttons - Field Guide Style */
.btn-guide {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.4rem;
  font-family: var(--font-family-sans);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1.5px solid transparent;
  min-height: 44px;
}

.btn-primary {
  background-color: var(--green-forest);
  color: #FFFFFF;
  border-color: var(--green-forest);
}
.btn-primary:hover {
  background-color: var(--green-forest-light);
  color: #FFFFFF;
  text-decoration: none;
  box-shadow: 0 4px 10px rgba(32, 53, 42, 0.2);
}

.btn-mustard {
  background-color: var(--accent-mustard);
  color: #1E2421;
  border-color: var(--accent-mustard);
}
.btn-mustard:hover {
  background-color: #B57D18;
  color: #FFFFFF;
  text-decoration: none;
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-anthracite);
  border-color: var(--border-dark);
}
.btn-secondary:hover {
  background-color: var(--text-anthracite);
  color: #FFFFFF;
  text-decoration: none;
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.82rem;
  min-height: 36px;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(247, 245, 240, 0.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-field);
  transition: all var(--transition-normal);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 1.5rem;
}

.site-header.scrolled .header-inner {
  height: var(--header-height-compact);
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-anthracite);
}
.brand-wrapper:hover { text-decoration: none; }

.brand-logo-mark {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--green-forest);
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-title .brand-sub {
  font-size: 0.65rem;
  font-family: var(--font-family-mono);
  color: var(--text-anthracite-subtle);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-anthracite);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  background-color: var(--bg-sand-muted);
  color: var(--green-forest);
  text-decoration: none;
}
.nav-link.active {
  box-shadow: inset 0 -2px 0 var(--accent-mustard);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.search-trigger-btn {
  background: var(--bg-sand-card);
  border: 1px solid var(--border-field);
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-anthracite-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-family-sans);
}
.search-trigger-btn:hover {
  border-color: var(--accent-mustard);
  color: var(--text-anthracite);
}
.search-trigger-btn kbd {
  background: var(--bg-sand-muted);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-size: 0.72rem;
  font-family: var(--font-family-mono);
  border: 1px solid var(--border-field);
}

.hamburger-btn {
  display: none;
  background: none;
  border: 1px solid var(--border-field);
  border-radius: var(--radius-sm);
  padding: 0.45rem;
  cursor: pointer;
  color: var(--text-anthracite);
}

/* Mobile Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 360px;
  height: 100vh;
  background: var(--bg-sand-light);
  z-index: 999;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: -4px 0 25px rgba(0,0,0,0.15);
  transition: right 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
}
.mobile-nav-drawer.open { right: 0; }
.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(30, 36, 33, 0.4);
  backdrop-filter: blur(2px);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.mobile-nav-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

/* Search Modal Overlay */
.search-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(22, 28, 25, 0.65);
  backdrop-filter: blur(4px);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(1rem, 5vw, 3rem) 1rem;
}
.search-modal.active { display: flex; }
.search-modal-box {
  background: var(--bg-sand-card);
  width: 100%;
  max-width: 680px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-field);
  box-shadow: 0 12px 35px rgba(0,0,0,0.18);
  overflow: hidden;
  animation: modalSlide 0.2s ease-out;
}
@keyframes modalSlide {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}
.search-input-header {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-field);
  gap: 0.8rem;
}
.search-input-header input {
  flex: 1;
  border: none;
  font-size: 1.1rem;
  font-family: var(--font-family-sans);
  background: transparent;
  color: var(--text-anthracite);
  outline: none;
}
.search-results-list {
  max-height: 60vh;
  overflow-y: auto;
  padding: 0.75rem;
}
.search-result-item {
  display: block;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background var(--transition-fast);
  border-bottom: 1px solid var(--border-field-subtle);
}
.search-result-item:hover, .search-result-item:focus {
  background: var(--bg-sand-muted);
  text-decoration: none;
}
.search-result-item h4 {
  font-size: 0.98rem;
  color: var(--green-forest);
  margin-bottom: 0.2rem;
}
.search-result-item p {
  font-size: 0.85rem;
  color: var(--text-anthracite-muted);
  margin-bottom: 0;
}

/* Cards & Tableau Elements (Field Guide look, asymmetrical) */
.tableau-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.tableau-card {
  background: var(--bg-sand-card);
  border: 1px solid var(--border-field);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  position: relative;
  transition: all var(--transition-fast);
  text-decoration: none;
  display: flex;
  flex-direction: column;
}
.tableau-card:hover {
  transform: translateY(-2px);
  border-color: var(--green-forest);
  box-shadow: 0 6px 16px rgba(30, 36, 33, 0.07);
  text-decoration: none;
}

.card-ghost-num {
  position: absolute;
  top: 0.75rem;
  right: 1rem;
  font-family: var(--font-family-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: rgba(30, 36, 33, 0.08);
  line-height: 1;
  pointer-events: none;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.6rem;
  color: var(--text-anthracite);
}
.tableau-card:hover .card-title {
  color: var(--green-forest);
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-anthracite-muted);
  margin-bottom: 1rem;
  flex-grow: 1;
}

.card-action-link {
  font-size: 0.85rem;
  font-family: var(--font-family-mono);
  font-weight: 600;
  color: var(--accent-mustard);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* 1-Minute-Tip Block */
.one-minute-box {
  background: var(--bg-sand-light);
  border: 1.5px solid var(--border-field);
  border-left: 5px solid var(--accent-mustard);
  border-radius: var(--radius-sm);
  padding: clamp(1.25rem, 3vw, 2rem);
  margin: 2rem 0;
  position: relative;
}
.one-minute-box .one-minute-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.one-minute-steps {
  list-style: none;
  counter-reset: tip-counter;
  margin-top: 1rem;
}
.one-minute-steps li {
  counter-increment: tip-counter;
  position: relative;
  padding-left: 2.4rem;
  margin-bottom: 0.75rem;
  color: var(--text-anthracite);
  font-size: 0.98rem;
}
.one-minute-steps li::before {
  content: counter(tip-counter, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-family-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-mustard);
  background: var(--accent-mustard-bg);
  padding: 0.15rem 0.35rem;
  border-radius: 2px;
}

/* Beobachten Statt Vermuten / Observation Box */
.observation-box {
  background: var(--bg-sand-card);
  border: 1px solid var(--border-field);
  border-top: 4px solid var(--green-forest);
  padding: 1.75rem;
  border-radius: var(--radius-sm);
  margin: 2rem 0;
}
.observation-checklist {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}
.observation-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--bg-sand-muted);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  border: 1px solid var(--border-field-subtle);
}
.observation-icon {
  color: var(--green-forest);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

/* Red-Flag Box */
.red-flag-card {
  background: var(--accent-coral-bg);
  border: 1.5px solid var(--accent-coral-border);
  border-left: 5px solid var(--accent-coral);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  margin: 2rem 0;
}
.red-flag-card h3 {
  color: #7D2211;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}
.red-flag-card p, .red-flag-card li {
  color: #4A1B12;
  font-size: 0.94rem;
}
.red-flag-card ul {
  padding-left: 1.25rem;
  margin-top: 0.5rem;
}

/* Interactive Accordion / FAQ */
.accordion-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.accordion-item {
  background: var(--bg-sand-card);
  border: 1px solid var(--border-field);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}
.accordion-item:hover {
  border-color: var(--green-forest-light);
}
.accordion-header {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 1.2rem 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-family-sans);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-anthracite);
  cursor: pointer;
}
.accordion-header:focus-visible {
  outline: 2px solid var(--accent-mustard);
}
.accordion-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform 0.25s ease;
  color: var(--accent-mustard);
}
.accordion-item.open .accordion-icon {
  transform: rotate(180deg);
}
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1), padding 0.3s ease;
  padding: 0 1.4rem;
}
.accordion-item.open .accordion-body {
  max-height: 800px;
  padding: 0.2rem 1.4rem 1.4rem 1.4rem;
}
.accordion-body p {
  font-size: 0.95rem;
  line-height: 1.65;
}

/* Exercise Card */
.exercise-card {
  background: var(--bg-sand-card);
  border: 1px solid var(--border-field);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.exercise-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-field-elevated);
}
.exercise-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.exercise-steps-box {
  background: var(--bg-sand-muted);
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

/* Filters UI */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding: 0.75rem;
  background: var(--bg-sand-muted);
  border: 1px solid var(--border-field);
  border-radius: var(--radius-sm);
}
.filter-btn {
  background: var(--bg-sand-card);
  border: 1px solid var(--border-field);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: var(--font-family-mono);
  font-weight: 600;
  cursor: pointer;
  color: var(--text-anthracite);
  transition: all var(--transition-fast);
}
.filter-btn:hover {
  border-color: var(--accent-mustard);
}
.filter-btn.active {
  background: var(--green-forest);
  color: #FFFFFF;
  border-color: var(--green-forest);
}

/* Mythos / Fakt Component */
.myth-card {
  background: var(--bg-sand-card);
  border: 1px solid var(--border-field);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}
.myth-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}
.myth-badge {
  background: var(--accent-coral-bg);
  color: #8C2917;
  font-family: var(--font-family-mono);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent-coral-border);
}
.fact-badge {
  background: var(--green-sage);
  color: #23422F;
  font-family: var(--font-family-mono);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid #B4C8B8;
}

/* Article Styles */
.article-header {
  border-bottom: 1px solid var(--border-field);
  padding-bottom: 1.75rem;
  margin-bottom: 2rem;
}
.article-breadcrumbs {
  font-family: var(--font-family-mono);
  font-size: 0.8rem;
  color: var(--text-anthracite-subtle);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.article-breadcrumbs a {
  color: var(--text-anthracite-subtle);
  text-decoration: none;
}
.article-breadcrumbs a:hover {
  color: var(--accent-mustard);
  text-decoration: underline;
}
.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 992px) {
  .article-layout {
    grid-template-columns: 280px 1fr;
  }
}
.article-toc {
  background: var(--bg-sand-card);
  border: 1px solid var(--border-field);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}
.article-toc h4 {
  font-size: 0.9rem;
  font-family: var(--font-family-mono);
  text-transform: uppercase;
  color: var(--text-anthracite-subtle);
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}
.article-toc ul {
  list-style: none;
  font-size: 0.88rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.article-toc a {
  color: var(--text-anthracite);
  text-decoration: none;
  display: block;
  line-height: 1.35;
}
.article-toc a:hover {
  color: var(--accent-mustard);
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.75;
}
.article-content h2 {
  margin-top: 2.25rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-field-subtle);
}
.article-content h3 {
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}
.article-content ul, .article-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}
.article-content li {
  margin-bottom: 0.5rem;
}

/* Footer */
.site-footer {
  margin-top: auto;
  background-color: #17211B;
  color: #D6DFD9;
  padding-top: clamp(3rem, 6vw, 4.5rem);
  padding-bottom: 2.5rem;
  border-top: 3px solid var(--accent-mustard);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem;
  margin-bottom: 3rem;
}
.footer-col h4 {
  color: #FFFFFF;
  font-size: 1rem;
  margin-bottom: 1.25rem;
  font-family: var(--font-family-mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.92rem;
}
.footer-links a {
  color: #BAC7BE;
  text-decoration: none;
}
.footer-links a:hover {
  color: var(--accent-mustard);
  text-decoration: underline;
}
.footer-disclaimer {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: 2rem;
  color: #A4B5A9;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  font-family: var(--font-family-mono);
  color: #798C80;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.5rem;
}

/* Mobile Responsiveness */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .hamburger-btn { display: flex; }
}

@media (max-width: 600px) {
  .header-actions .search-trigger-btn span { display: none; }
  .tableau-grid { grid-template-columns: 1fr; }
  .orientation-strip { font-size: 0.78rem; padding: 0.75rem 0.9rem; }
  .field-number.large { font-size: 2.2rem; }
}

/* Print Styles */
@media print {
  .site-header, .site-footer, .search-trigger-btn, .btn-guide { display: none !important; }
  body { background: white !important; color: black !important; }
}