/* ============================================================
   BLOC-NOTES NUMÉRIQUES — Design System
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=Newsreader:ital,wght@0,400;0,600;1,400;1,600&display=swap');

/* --- Variables --- */
:root {
  --color-bg:         #F7F6F1;
  --color-bg-alt:     #ECECE7;
  --color-text:       #202321;
  --color-text-muted: #6B6E6A;
  --color-primary:    #52675A;
  --color-accent:     #C66A4A;
  --color-border:     #D8D9D3;
  --color-white:      #FFFFFF;

  --font-sans:   'Manrope', system-ui, sans-serif;
  --font-serif:  'Newsreader', Georgia, serif;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  14px;

  --shadow-xs:  0 1px 3px rgba(32,35,33,0.06);
  --shadow-sm:  0 2px 8px rgba(32,35,33,0.08);

  --max-width:  1160px;
  --header-h:   64px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5 { font-family: var(--font-serif); font-weight: 600; line-height: 1.2; }
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p  { font-size: 1rem; color: var(--color-text); }
.lead { font-size: 1.15rem; color: var(--color-text-muted); line-height: 1.75; }
.sans { font-family: var(--font-sans); }
.serif { font-family: var(--font-serif); }

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 72px 0; }
.section--alt { background: var(--color-bg-alt); }
.section--white { background: var(--color-white); }

/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  gap: 32px;
}

/* Logo */
.site-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  gap: 0;
  flex-shrink: 0;
}
.site-logo .logo-line1 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}
.site-logo .logo-line2 {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.02em;
}
.logo-pen {
  display: inline-block;
  width: 20px;
  height: 2px;
  background: var(--color-primary);
  position: relative;
  vertical-align: middle;
  margin-left: 6px;
  border-radius: 2px;
}
.logo-pen::after {
  content: '';
  position: absolute;
  right: -4px;
  top: -3px;
  width: 0;
  height: 0;
  border-left: 5px solid var(--color-primary);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}

/* Nav */
.site-nav { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav-item { position: relative; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}
.nav-link:hover,
.nav-item:hover > .nav-link { color: var(--color-primary); background: var(--color-bg-alt); }
.nav-link .chevron {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  transition: transform 0.2s;
}
.nav-item:hover > .nav-link .chevron { transform: rotate(180deg); }

/* Dropdown */
.dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 240px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  z-index: 200;
}
.nav-item:hover > .dropdown,
.nav-item:focus-within > .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown a {
  display: block;
  padding: 8px 12px;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background 0.15s, color 0.15s;
}
.dropdown a:hover { background: var(--color-bg-alt); color: var(--color-primary); }
.dropdown-separator {
  height: 1px;
  background: var(--color-border);
  margin: 6px 0;
}
.dropdown-label {
  padding: 6px 12px 4px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Header CTA */
.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.84rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: background 0.15s;
  flex-shrink: 0;
}
.header-cta:hover { background: #3f5145; }

/* Mobile burger */
.burger { display: none; flex-direction: column; gap: 5px; padding: 6px; }
.burger span { display: block; width: 22px; height: 2px; background: var(--color-text); border-radius: 2px; transition: transform 0.2s; }
.burger[aria-expanded="true"] span:first-child { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:last-child { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: 80px 0 64px;
  background: var(--color-bg);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 99px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 20px;
}
.hero-title { margin-bottom: 20px; }
.hero-desc { margin-bottom: 32px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  min-height: 380px;
  position: relative;
  overflow: hidden;
}
.hero-visual-placeholder {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  text-align: center;
  padding: 32px;
}
.paper-study { position: relative; width: 72%; height: 72%; }
.paper-study span {
  position: absolute;
  display: block;
  width: 62%;
  height: 82%;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  box-shadow: var(--shadow-xs);
}
.paper-study span:nth-child(1) { left: 4%; top: 12%; transform: rotate(-7deg); }
.paper-study span:nth-child(2) { right: 4%; top: 5%; transform: rotate(6deg); background: #FDFCF7; }
.paper-study span:nth-child(3) { left: 20%; top: 0; border: 5px solid var(--color-text); background: repeating-linear-gradient(to bottom, #FDFCF7 0, #FDFCF7 25px, #E8E5D8 26px); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.btn-primary { background: var(--color-primary); color: var(--color-white); }
.btn-primary:hover { background: #3f5145; }
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn-secondary:hover { background: var(--color-primary); color: var(--color-white); }
.btn-accent { background: var(--color-accent); color: var(--color-white); }
.btn-accent:hover { background: #a8563a; }
.btn-disabled { opacity: 0.55; cursor: not-allowed; }
.btn-ghost { background: var(--color-bg-alt); color: var(--color-text); border: 1px solid var(--color-border); }
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-sm { padding: 8px 14px; font-size: 0.82rem; }
.btn-lg { padding: 15px 28px; font-size: 1rem; }

/* ============================================================
   USAGE CARDS
   ============================================================ */
.usage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.usage-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: border-color 0.2s, box-shadow 0.2s;
  cursor: pointer;
}
.usage-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}
.usage-icon {
  width: 40px;
  height: 40px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.usage-icon svg { width: 20px; height: 20px; stroke: var(--color-primary); fill: none; stroke-width: 1.5; }
.usage-card h3 { font-size: 1rem; font-family: var(--font-sans); font-weight: 700; margin-bottom: 6px; }
.usage-card p { font-size: 0.84rem; color: var(--color-text-muted); }

/* ============================================================
   COMPARISON TABLE
   ============================================================ */
.table-wrapper { overflow-x: auto; border-radius: var(--radius-md); border: 1px solid var(--color-border); }
.comp-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; background: var(--color-white); }
.comp-table th {
  background: var(--color-bg-alt);
  font-weight: 700;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: 14px 16px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid var(--color-border);
}
.comp-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
  color: var(--color-text);
}
.comp-table tr:last-child td { border-bottom: none; }
.comp-table tr:hover td { background: #F7F6F1; }
.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 700;
}
.badge-primary { background: #EBF0EC; color: var(--color-primary); }
.badge-accent  { background: #F9EDE8; color: var(--color-accent); }
.badge-neutral { background: var(--color-bg-alt); color: var(--color-text-muted); }
.verdict-star { color: var(--color-accent); font-weight: 700; }

/* ============================================================
   RECOMMENDATION CARDS
   ============================================================ */
.reco-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.reco-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xs);
  transition: box-shadow 0.2s;
}
.reco-card:hover { box-shadow: var(--shadow-sm); }
.reco-card-badge {
  padding: 8px 16px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--color-primary);
  color: var(--color-white);
}
.reco-card-badge.accent { background: var(--color-accent); }
.reco-card-badge.neutral { background: var(--color-bg-alt); color: var(--color-text-muted); }
.reco-card-img {
  background: var(--color-bg-alt);
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}
.product-silhouette {
  display: block;
  width: 92px;
  height: 132px;
  border: 5px solid var(--color-text);
  background: repeating-linear-gradient(to bottom, #FDFCF7 0, #FDFCF7 20px, #E5E2D6 21px);
  box-shadow: 10px 12px 0 rgba(82,103,90,0.12);
  transform: rotate(-3deg);
}
.product-silhouette--wide { width: 112px; transform: rotate(2deg); }
.product-silhouette--compact { width: 84px; height: 120px; transform: rotate(-1deg); }
.draft-notice {
  padding: 18px 20px;
  border-left: 3px solid var(--color-accent);
  background: #FDFCF7;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}
.reco-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; gap: 12px; }
.reco-card-body h3 { font-family: var(--font-sans); font-size: 1.05rem; font-weight: 700; }
.reco-meta { display: flex; flex-direction: column; gap: 6px; }
.reco-pro, .reco-con {
  display: flex;
  gap: 6px;
  font-size: 0.82rem;
  align-items: flex-start;
}
.reco-pro::before { content: '+'; color: var(--color-primary); font-weight: 800; flex-shrink: 0; }
.reco-con::before { content: '–'; color: var(--color-accent); font-weight: 800; flex-shrink: 0; }
.reco-price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-sans);
}
.reco-actions { display: flex; gap: 8px; margin-top: auto; }
.reco-actions .btn { flex: 1; justify-content: center; font-size: 0.82rem; padding: 9px 12px; }

/* ============================================================
   VS SECTION
   ============================================================ */
.vs-grid { display: flex; flex-direction: column; gap: 12px; }
.vs-row {
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  align-items: center;
  gap: 16px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: border-color 0.2s;
}
.vs-row:hover { border-color: var(--color-primary); }
.vs-brand {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text);
}
.vs-sep {
  text-align: center;
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  padding: 6px;
}
.vs-brand-right { text-align: right; }

/* ============================================================
   ARTICLE / CONTENT CARDS
   ============================================================ */
.content-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.content-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s;
}
.content-card:hover { box-shadow: var(--shadow-sm); }
.content-card-img {
  background: var(--color-bg-alt);
  height: 140px;
}
.content-card-body { padding: 16px 20px; flex: 1; display: flex; flex-direction: column; gap: 8px; }
.content-type {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.type-test        { background: #EBF0EC; color: var(--color-primary); }
.type-comparatif  { background: #F9EDE8; color: var(--color-accent); }
.type-guide       { background: #EEF0F5; color: #4A5580; }
.type-explication { background: #F5F0EE; color: #7A5A4A; }
.content-card-body h3 { font-family: var(--font-sans); font-size: 0.95rem; font-weight: 700; line-height: 1.3; }
.content-card-body p  { font-size: 0.82rem; color: var(--color-text-muted); }
.content-date { font-size: 0.72rem; color: var(--color-text-muted); margin-top: auto; }

/* ============================================================
   METHODOLOGY SECTION
   ============================================================ */
.method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 32px; }
.method-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
}
.method-num {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-primary);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: 10px;
}
.method-card h4 { font-family: var(--font-sans); font-size: 0.9rem; font-weight: 700; margin-bottom: 6px; }
.method-card p  { font-size: 0.82rem; color: var(--color-text-muted); }

/* ============================================================
   HANDWRITTEN NOTE
   ============================================================ */
.handnote {
  display: inline-block;
  position: relative;
  background: #FDFCF7;
  border: 1px solid #E2DFC8;
  border-radius: 4px;
  padding: 14px 20px 14px 48px;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--color-text);
  box-shadow: 2px 2px 0 rgba(0,0,0,0.04);
}
.handnote::before {
  content: '✒';
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  opacity: 0.4;
  font-style: normal;
}

/* ============================================================
   PAGE INNER (hub / content pages)
   ============================================================ */
.page-hero {
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--color-border);
}
.page-breadcrumb {
  display: flex;
  gap: 6px;
  align-items: center;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}
.page-breadcrumb a { color: var(--color-text-muted); }
.page-breadcrumb a:hover { color: var(--color-primary); }
.page-breadcrumb .sep { opacity: 0.4; }
.page-meta {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-top: 16px;
  flex-wrap: wrap;
}
.page-meta-item {
  display: flex;
  gap: 4px;
  align-items: center;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}
.update-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 99px;
  color: var(--color-text-muted);
}

/* Content + Sidebar layout */
.content-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  padding: 48px 0 80px;
  align-items: start;
}
.content-main { min-width: 0; }
.content-main h2 { margin: 40px 0 16px; }
.content-main h3 { margin: 28px 0 12px; }
.content-main p  { margin-bottom: 16px; }
.content-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 16px);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.sidebar-box {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}
.sidebar-box h4 {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}
.sidebar-toc a {
  display: block;
  padding: 5px 0;
  font-size: 0.84rem;
  color: var(--color-text-muted);
  border-left: 2px solid var(--color-border);
  padding-left: 10px;
  transition: color 0.15s, border-color 0.15s;
}
.sidebar-toc a:hover { color: var(--color-primary); border-color: var(--color-primary); }
.affiliation-note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Score display */
.score-display {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 4px;
}
.score-num {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--color-primary);
}
.score-max { font-size: 1rem; color: var(--color-text-muted); }
.score-bars { display: flex; flex-direction: column; gap: 8px; }
.score-bar-item { display: flex; flex-direction: column; gap: 3px; }
.score-bar-label { font-size: 0.75rem; font-weight: 600; display: flex; justify-content: space-between; }
.score-bar-track {
  height: 4px;
  background: var(--color-bg-alt);
  border-radius: 2px;
  overflow: hidden;
}
.score-bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 2px;
}

/* Product summary box */
.product-summary {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: 32px 0;
}
.product-summary-header {
  background: var(--color-bg-alt);
  padding: 16px 20px;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}
.product-summary-body { padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.summary-row { display: flex; gap: 12px; font-size: 0.875rem; }
.summary-label { font-weight: 700; min-width: 130px; flex-shrink: 0; }
.summary-val { color: var(--color-text-muted); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
  padding: 56px 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo-line1 { color: rgba(255,255,255,0.9); }
.footer-brand .logo-line2 { color: var(--color-accent); }
.footer-tagline {
  margin-top: 12px;
  font-size: 0.84rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.5);
}
.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 14px;
}
.footer-col a {
  display: block;
  font-size: 0.84rem;
  color: rgba(255,255,255,0.6);
  padding: 4px 0;
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--color-white); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom a { color: rgba(255,255,255,0.35); }
.footer-bottom a:hover { color: rgba(255,255,255,0.6); }

/* ============================================================
   SECTION HEADINGS
   ============================================================ */
.section-heading { margin-bottom: 40px; }
.section-heading .eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.section-heading h2 { margin-bottom: 10px; }
.section-heading p { color: var(--color-text-muted); }

/* ============================================================
   HUB PAGE
   ============================================================ */
.hub-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.hub-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.hub-link:hover { border-color: var(--color-primary); box-shadow: var(--shadow-xs); color: var(--color-primary); }
.hub-link-arrow { color: var(--color-text-muted); font-size: 1rem; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { min-height: 260px; }
  .usage-grid { grid-template-columns: repeat(2, 1fr); }
  .reco-grid { grid-template-columns: 1fr 1fr; }
  .method-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .content-layout { grid-template-columns: 1fr; }
  .content-sidebar { position: static; }
}
@media (max-width: 768px) {
  .site-nav, .header-cta { display: none; }
  .burger { display: flex; }
  body.nav-open { overflow: hidden; }
  body.nav-open .site-nav {
    display: flex;
    position: fixed;
    inset: var(--header-h) 0 0 0;
    overflow-y: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 20px 24px 48px;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
  }
  body.nav-open .nav-link { justify-content: space-between; padding: 14px 0; font-size: 1rem; }
  body.nav-open .nav-link .chevron { display: none; }
  body.nav-open .dropdown {
    position: static;
    min-width: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    border-left: 1px solid var(--color-border);
    border-radius: 0;
    padding: 0 0 12px 12px;
    background: transparent;
  }
  body.nav-open .dropdown a { padding: 7px 10px; }
  body.nav-open .dropdown-label, body.nav-open .dropdown-separator { display: none; }
  .usage-grid { grid-template-columns: 1fr; }
  .reco-grid { grid-template-columns: 1fr; }
  .content-grid { grid-template-columns: 1fr; }
  .method-grid { grid-template-columns: 1fr; }
  .hub-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .vs-row { grid-template-columns: 1fr 40px 1fr; }
  .section { padding: 48px 0; }
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.4rem; }
  .hero { padding-top: 48px; }
  .hero-actions .btn { width: 100%; justify-content: center; white-space: normal; text-align: center; }
}