/* ─── GRYD Design System Tokens — Confident Amber 2026 ─── */
  :root {
    /* ── Confident Amber Palette ─────────────────────────────────────────── */
    --ink:       #1F2937;   /* Deep Slate — body text, high readability        */
    --steel:     #0F172A;   /* Rich Charcoal Navy — headings, nav, authority   */
    --charcoal:  #374151;   /* Mid-dark for secondary headings                 */
    --mid:       #6B7280;   /* Warm mid-grey for supporting text               */
    --subtle:    #9CA3AF;   /* Muted labels, metadata                          */
    --mist:      #D1D5DB;   /* Light borders, ghost text                       */
    --ghost:     #F3EFE8;   /* Soft sand — cards, quote bg, subtle highlights  */
    --canvas:    #FAF7F0;   /* Warm Ivory — site background                    */
    --white:     #FAF7F0;   /* Warm Ivory used wherever white was (cards, etc) */
    --true-white:#FFFFFF;   /* Pure white for text-on-dark only                */

    --amber:     #EAB308;   /* Golden Amber — CTA, accent, metrics             */
    --amber-lift:#FACC15;   /* Bright Amber Lift — hover, focus glow           */
    --amber-bg:  #FEF9C3;   /* Pale amber tint for chip/badge backgrounds      */
    --amber-dark:#92400E;   /* Deep amber for text on amber-bg (WCAG AA+)      */
    --sand:      #EDE4D8;   /* Soft Sand — cards, dividers, blueprint sections */
    --linen:     #F0E9DB;   /* Warm Linen — borders, subtle rules              */

    /* Legacy semantic aliases kept for component compatibility */
    --teal:      #0F172A;   /* Replaced by charcoal navy for hover/active      */
    --teal-bg:   #EDE4D8;   /* → Soft Sand                                     */
    --blueprint: #92400E;   /* Replaced by deep amber for links                */
    --blueprint-bg: #FEF9C3;/* → Pale amber                                    */
    --coral:     #B45309;   /* Warm amber-brown for healthcare chip             */
    --coral-bg:  #FEF3C7;   /* Warm amber tint                                 */
    --emerald:   #EAB308;   /* Status dot → Golden Amber                       */

    --radius-xs: 2px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    --shadow-sm: 0 1px 3px rgba(15,23,42,0.04), 0 4px 8px -2px rgba(15,23,42,0.06);
    --shadow-md: 0 2px 6px rgba(15,23,42,0.04), 0 10px 20px -4px rgba(15,23,42,0.08);
    --shadow-lg: 0 4px 12px rgba(15,23,42,0.05), 0 20px 40px -8px rgba(15,23,42,0.12);

    --grid-line: rgba(234,179,8,0.08);   /* subtle amber tint to grid lines     */
    --border:    rgba(15,23,42,0.09);
    --border-mid: rgba(15,23,42,0.15);

    --font-sans: 'Plus Jakarta Sans', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --nav-h: 57px;
  }

  /* ─── Reset & Base ─── */
  *, *::before, *::after { box-sizing: border-box; }

  html { scroll-behavior: smooth; }

  body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--canvas);
    color: var(--ink);
    -webkit-font-smoothing: antialiased;
    overflow-x: clip;  /* clip instead of hidden — doesn't create stacking context */
    line-height: 1.6;
  }

  /* ─── Technical Grid Background ─── */
  .technical-grid {
    background-image:
      linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
      linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: linear-gradient(to bottom, black 20%, transparent 100%);
  }

  /* ─── Hero Backdrop ─── */
  /* Sits beneath the Three.js canvas (which uses alpha:true).
     Transparent WebGL pixels reveal the photo; the particle cube floats on top.
     Position is absolute (not fixed) so it scrolls with the hero and is
     invisible once the user has scrolled past it. JS fades opacity→0 during scroll. */
  #hero-backdrop {
    position: absolute;          /* scroll-driven: stays inside hero, not viewport-fixed */
    top: 0;
    left: 0;
    width: 100%;                 /* full screen width */
    height: 100%;
    z-index: 0;
    pointer-events: none;

    background-size: cover;            /* image fills the full width */
    background-position: center 30%;  /* keeps the crystal gems + horizon nicely framed */
    background-repeat: no-repeat;

    /* Single bottom-fade mask — dissolves into next section. Applied via JS (theme-aware). */
    transition: opacity 0.1s linear;   /* smooth the JS-driven scroll fade */

    /* Subtle entrance fade-in */
    animation: heroBackdropIn 1.2s var(--ease-out) both;
  }

  @keyframes heroBackdropIn {
    from { opacity: 0; transform: scale(1.03); }
    to   { opacity: 1; transform: scale(1); }
  }

  /* In dark mode the image gets an additional darkening overlay via the JS mask */
  [data-theme="dark"] #hero-backdrop {
    opacity: 0.75;
  }

  /* ─── Typography Scale ─── */
  .label-xs {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--subtle);
    font-family: var(--font-mono);
  }
  .label-sm {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    color: var(--subtle);
  }

  /* ─── Discipline Chips ─── */
  .chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px 3px 7px;
    border-radius: var(--radius-xs);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    border: 0.5px solid;
    font-family: var(--font-mono);
  }
  .chip-dot {
    width: 5px; height: 5px;
    border-radius: 50%;
    flex-shrink: 0;
  }
  .chip-fintech    { background: var(--blueprint-bg); color: var(--blueprint); border-color: rgba(21,88,160,0.2); }
  .chip-designops  { background: var(--amber-bg);     color: var(--amber);     border-color: rgba(184,114,20,0.2); }
  .chip-genai      { background: var(--teal-bg);      color: var(--teal);      border-color: rgba(234,179,8,0.25); }
  .chip-healthcare { background: var(--coral-bg);     color: var(--coral);     border-color: rgba(201,64,64,0.2); }
  .chip-leadership { background: var(--ghost);        color: var(--charcoal);  border-color: var(--border); }
  .chip-logistics  { background: var(--ghost);        color: var(--charcoal);  border-color: var(--border); }

  /* ─── Cards ─── */
  .premium-card {
    background: var(--white);
    border: 0.5px solid var(--border);
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-xl);
    transition: transform 0.35s var(--ease-out),
                box-shadow 0.35s var(--ease-out),
                border-color 0.35s ease;
  }
  .premium-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-mid);
  }

  /* Case study cards */
  .case-card {
    background: var(--white);
    border: 0.5px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform 0.4s var(--ease-out),
                box-shadow 0.4s var(--ease-out),
                border-color 0.4s ease;
    position: relative;
    overflow: hidden;
  }
  .case-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15,15,15,0.025) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    border-radius: var(--radius-xl);
  }
  .case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(234,179,8,0.35);
  }
  .case-card:hover::before { opacity: 1; }

  /* ─── Stat Cards ─── */
  .stat-card {
    background: rgba(255,255,255,0.08);
    border: 0.5px solid rgba(255,255,255,0.22);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    transition: background 0.3s ease, border-color 0.3s ease;
  }
  .stat-card:hover {
    background: rgba(255,255,255,0.14);
    border-color: rgba(255,255,255,0.32);
  }
  .stat-val {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 4px;
  }
  .stat-label {
    font-size: 11px;
    font-weight: 500;
    color: rgba(255,255,255,0.55);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-family: var(--font-mono);
  }

  /* ─── Buttons ─── */
  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #EAB308;
    color: #0F172A;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 700;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
    box-shadow: 0 1px 2px rgba(234,179,8,0.22), inset 0 1px 0 rgba(255,255,255,0.18);
  }
  .btn-primary:hover {
    transform: translateY(-1px) scale(1.02);
    box-shadow: 0 8px 24px -4px rgba(234,179,8,0.48);
    background: #FACC15;
  }
  .btn-primary:active { transform: scale(0.98); }
  .btn-primary .shimmer {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transform: translateX(-100%);
    transition: none;
  }
  .btn-primary:hover .shimmer {
    animation: shimmer 1.4s var(--ease-out) infinite;
  }
  @keyframes shimmer { to { transform: translateX(200%); } }

  .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 500;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    border: 0.5px solid var(--border-mid);
    cursor: pointer;
    transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  }
  .btn-secondary:hover {
    background: rgba(15,15,15,0.04);
    border-color: rgba(15,15,15,0.3);
    box-shadow: var(--shadow-sm);
  }

  /* ─── Nav badge / Status pill ─── */
  .status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: var(--white);
    border: 0.5px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    font-size: 11px;
    font-weight: 500;
    color: var(--mid);
    letter-spacing: 0.02em;
  }
  .pulse-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--emerald);
    animation: pulse-ring 2s ease-in-out infinite;
  }
  @keyframes pulse-ring {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(22,163,74,0.4); }
    50% { opacity: 0.85; box-shadow: 0 0 0 4px rgba(22,163,74,0); }
  }

  /* ─── Pricing / Framework cards ─── */
  .pricing-transition {
    transition:
      transform 300ms var(--ease-out),
      box-shadow 300ms var(--ease-out),
      border-color 500ms ease,
      opacity 400ms ease;
    will-change: transform, opacity;
  }

  /* ─── Lifecycle timeline ─── */
  .lifecycle-step { transition: all 0.5s ease; }

  /* ─── Section accents ─── */
  .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 1rem;
  }
  .eyebrow-line {
    width: 24px; height: 1px;
    background: var(--amber);
    opacity: 0.7;
  }

  /* ─── SVG microanimations: theme-aware base opacity ─── */
  .case-preview { background: var(--canvas); }
  .case-preview svg { color: var(--ink); }
  .case-card .case-preview { transition: background 0.3s ease; }

  /* ─── Case thumbnail: actual screenshot image ──────────────────────────────
     Sits above the SVG pattern but below the ::after fade overlay.
     When image errors (.case-thumb-hidden), the SVG pattern + fallback text show.
  ─────────────────────────────────────────────────────────────────────────── */
  .case-thumb-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    z-index: 2;
    transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
                opacity   0.3s ease;
    border-radius: inherit;
  }
  .case-card:hover .case-thumb-img { transform: scale(1.03); }

  /* Hidden state — applied via onerror so fallback shows through */
  .case-thumb-img.case-thumb-hidden { display: none; }

  /* ─── Fallback: icon + label centred over the SVG pattern ── */
  .case-thumb-fallback {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    pointer-events: none;
  }
  /* Hide fallback text when the real image loads successfully */
  .case-thumb-img:not(.case-thumb-hidden) ~ .case-thumb-fallback { opacity: 0; }

  /* ─── SVG pattern behind the fallback ── */
  .case-thumb-pattern {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
  }

  /* ─── Case study preview SVG container ─── */
  .case-preview {
    width: 100%;
    height: 160px;
    margin-bottom: 1.5rem;
    background: var(--canvas);
    border-radius: var(--radius-md);
    border: 0.5px solid var(--border);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
  }
  .case-preview::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 60%, rgba(250,247,240,0.4));
    pointer-events: none;
  }

  /* ─── Card open button ─── */
  .card-open-btn {
    font-size: 11px;
    font-weight: 700;
    color: var(--subtle);
    letter-spacing: 0.04em;
    font-family: var(--font-mono);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    border: 0.5px solid var(--border);
    background: transparent;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .case-card:hover .card-open-btn {
    background: #EAB308;
    color: #FFFFFF;
    border-color: #EAB308;
    transform: translateX(2px);
  }

  /* ─── ROI badge ─── */
  .roi-badge {
    font-size: 11px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.01em;
    font-family: var(--font-mono);
  }

  /* ─── Link arrows ─── */
  .link-arrow {
    font-size: 11px;
    font-weight: 700;
    color: var(--amber-dark);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.2s ease, color 0.2s ease;
  }
  .link-arrow:hover { gap: 7px; color: var(--amber); }
  .link-muted {
    font-size: 11px;
    font-weight: 600;
    color: var(--subtle);
    text-decoration: none;
    transition: color 0.2s ease;
  }
  .link-muted:hover { color: var(--amber-dark); }

  /* ─── Header ─── */
  .site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 50;
    padding: 16px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(250,247,240,0.90);
    backdrop-filter: blur(12px);
    border-bottom: 0.5px solid var(--border);
    transition: background 0.3s ease, box-shadow 0.3s ease;
  }
  .site-header.scrolled {
    background: rgba(250,247,240,0.97);
    box-shadow: 0 1px 0 var(--border), 0 4px 12px -4px rgba(15,23,42,0.06);
  }
  .logo-mark {
    width: 22px; height: 22px;
    background: var(--ink);
    border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
  }
  .logo-mark svg { width: 12px; height: 12px; }
  html[data-theme="dark"] .logo-mark { background: #F0EEE9; }
  html[data-theme="dark"] .logo-mark svg { stroke: #161513 !important; }
  .logo-name {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--ink);
  }
  .nav-link {
    font-size: 12px;
    font-weight: 500;
    color: var(--subtle);
    text-decoration: none;
    letter-spacing: 0.01em;
    transition: color 0.2s ease;
    position: relative;
  }
  .nav-link:hover { color: var(--amber-dark); }

  /* Active section indicator — small dot under the link */
  .nav-link--active {
    color: var(--ink) !important;
    font-weight: 600;
  }
  .nav-link--active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--amber-dark, #B87214);
  }
  html[data-theme="dark"] .nav-link--active { color: var(--paper) !important; }
  html[data-theme="dark"] .nav-link--active::after { background: var(--amber, #E8A020); }

  /* ─── Domain strip ─── */
  .domain-strip {
    border-top: 0.5px solid var(--border);
    border-bottom: 0.5px solid var(--border);
    padding: 20px 0;
    background: var(--white);
    overflow: hidden;
  }
  .domain-items {
    display: flex;
    gap: 48px;
    align-items: center;
    opacity: 0.5;
    transition: opacity 0.5s ease;
    flex-wrap: wrap;
    justify-content: center;
  }
  .domain-items:hover { opacity: 1; }
  .domain-item {
    font-size: 13px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    white-space: nowrap;
    font-family: var(--font-mono);
  }

  /* ─── Dark section ─── */
  .dark-section {
    background: #0C1628;
    color: #F0EEE9;
    position: relative;
    overflow: hidden;
  }
  html[data-theme="dark"] .dark-section { background: #080D18; }
  .dark-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255,255,255,0.055) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
  }
  .dark-divider { border-top: 0.5px solid rgba(255,255,255,0.1); }

  /* ─── Section layout ─── */
  .page-section {
    padding: 96px 80px;
    max-width: 1280px;
    margin: 0 auto;
  }
  @media (max-width: 768px) {
    .page-section { padding: 64px 24px; }
    .site-header { padding: 14px 20px; }
  }

  /* ─── Mobile hamburger menu ─── */
  .mobile-menu-btn {
    display: none;
    width: 34px; height: 34px;
    border-radius: var(--radius-sm);
    border: 0.5px solid var(--border);
    background: transparent;
    cursor: pointer;
    align-items: center; justify-content: center;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
    transition: background 0.2s ease;
    flex-shrink: 0;
  }
  .mobile-menu-btn span {
    display: block;
    width: 14px; height: 1.5px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform-origin: center;
  }
  .mobile-menu-btn.open span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
  .mobile-menu-btn.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .mobile-menu-btn.open span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

  .mobile-nav-drawer {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(250,247,240,0.98);
    backdrop-filter: blur(16px);
    border-bottom: 0.5px solid var(--border);
    z-index: 49;
    padding: 16px 16px 20px;
    flex-direction: column;
    gap: 2px;
    box-shadow: 0 8px 24px -4px rgba(0,0,0,0.08);
  }
  html[data-theme="dark"] .mobile-nav-drawer { background: rgba(22,20,16,0.98); }
  .mobile-nav-drawer.open { display: flex; }
  .mobile-nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--mid);
    text-decoration: none;
    padding: 11px 12px;
    border-radius: var(--radius-md);
    transition: background 0.2s ease, color 0.2s ease;
    display: block;
  }
  .mobile-nav-link:hover, .mobile-nav-link:active { background: var(--ghost); color: var(--amber-dark); }
  .mobile-nav-link.nav-link--active {
    color: var(--ink);
    font-weight: 600;
    background: var(--ghost);
  }
  html[data-theme="dark"] .mobile-nav-link.nav-link--active {
    color: var(--paper);
    background: rgba(240,238,233,0.07);
  }
  .mobile-nav-divider { height: 0.5px; background: var(--border); margin: 6px 0; }
  .mobile-nav-action {
    margin-top: 8px;
    display: flex;
    gap: 8px;
  }

  @media (max-width: 768px) {
    /* Show hamburger, hide desktop nav */
    .mobile-menu-btn { display: flex; }
    nav.hidden { display: none !important; }

    /* Hero: stack vertically, hide the card */
    section.relative.min-h-\[92vh\] {
      min-height: auto !important;
      flex-direction: column !important;
      padding-top: 96px !important;
      padding-bottom: 48px !important;
      padding-left: 20px !important;
      padding-right: 20px !important;
      gap: 32px !important;
    }
    /* Hide the hero card on mobile */
    section.relative.min-h-\[92vh\] > div:last-child { display: none !important; }

    /* Case studies: single column */
    #case-studies > div > div[style*="grid-template-columns: repeat(3"] {
      grid-template-columns: 1fr !important;
    }
    #case-studies { padding: 64px 20px !important; }

    /* Impact section */
    #impact { padding: 64px 20px !important; }
    #impact > div > div[style*="repeat(4,1fr)"] {
      grid-template-columns: 1fr 1fr !important;
    }
    #impact > div > div[style*="grid-template-columns:3fr 1fr"] {
      grid-template-columns: 1fr !important;
      gap: 40px !important;
    }
    /* Side stats: horizontal on mobile */
    #impact div[style*="border-left:0.5px"] {
      border-left: none !important;
      padding-left: 0 !important;
      border-top: 0.5px solid rgba(255,255,255,0.15) !important;
      padding-top: 32px !important;
      flex-direction: row !important;
      flex-wrap: wrap !important;
      gap: 24px !important;
    }

    /* Leadership sticky scroll: flatten on mobile */
    #leadership {
      height: auto !important;
      padding: 64px 20px !important;
    }
    #leadership > div.sticky {
      position: relative !important;
      top: auto !important;
      height: auto !important;
      overflow: visible !important;
    }
    #leadership .absolute.left-1\/2 { display: none !important; }
    #leadership #lifecycle-line { display: none !important; }
    #lifecycle-header { opacity: 1 !important; margin-bottom: 24px !important; }
    .lifecycle-step {
      flex-direction: column !important;
      align-items: flex-start !important;
      gap: 8px !important;
      padding: 16px 0 !important;
      border-bottom: 0.5px solid var(--border) !important;
      opacity: 1 !important;
      transform: none !important;
    }
    .lifecycle-step .w-5\/12 {
      width: 100% !important;
      text-align: left !important;
      padding-right: 0 !important;
      padding-left: 0 !important;
    }
    .lifecycle-step .relative.shrink-0 { display: none !important; }

    /* Frameworks section */
    #frameworks { padding: 64px 20px !important; }
    #frameworks #pricing-grid {
      grid-template-columns: 1fr !important;
    }
    #pricing-pro { transform: scale(1) !important; box-shadow: 0 4px 16px -4px rgba(0,0,0,0.2) !important; }

    /* Contact section */
    #contact { padding: 64px 20px !important; }
    #contact > div > div[style*="grid-template-columns:1fr 1fr"] {
      grid-template-columns: 1fr !important;
      gap: 40px !important;
    }
    #contact div[style*="flex-wrap:wrap;gap:12px;margin-bottom:40px"] {
      flex-direction: column !important;
    }
    #contact .btn-primary, #contact .btn-secondary {
      width: 100% !important;
      justify-content: center !important;
    }

    /* Footer */
    footer { padding: 48px 20px 32px !important; }
    footer > div > div[style*="grid-template-columns:1fr 1fr 1fr 1fr"] {
      grid-template-columns: 1fr 1fr !important;
      gap: 32px !important;
    }

    /* Hide LinkedIn link in header on mobile (in drawer instead) */
    header .hidden.md\:block { display: none !important; }

    /* ── Logo: show only MAJU on mobile ─────────────────────────────── */
    .logo-name-suffix { display: none !important; }

    /* ── Hide desktop Download CV button; it lives in the drawer ─────── */
    .desktop-cv-btn { display: none !important; }

    /* ── Mobile nav drawer: add breathing room under the header bar ─── */
    .mobile-nav-link.mobile-nav-first { margin-top: 6px !important; }

    /* ── Selected Clients domain strip ──────────────────────────────── */
    .domain-strip > div { padding: 0 20px !important; }
    .domain-strip .flex { flex-direction: column !important; align-items: flex-start !important; gap: 12px !important; }
    .domain-items { gap: 16px 24px !important; flex-wrap: wrap !important; justify-content: flex-start !important; opacity: 1 !important; }
    .domain-item { font-size: 11px !important; }
    /* Hide dot separators — spacing handles it */
    .domain-items span[style*="color:var(--border)"] { display: none !important; }

    /* ── Leadership Methodology mobile polish ────────────────────────── */
    .lifecycle-step {
      background: var(--white) !important;
      border-radius: var(--radius-md) !important;
      border: 0.5px solid var(--border) !important;
      border-bottom: 0.5px solid var(--border) !important;
      padding: 14px 16px !important;
      gap: 12px !important;
    }
    /* Step number label: prominent on mobile */
    .lifecycle-step .label-xs { font-size: 9px !important; margin-bottom: 2px !important; }
    .lifecycle-step h3 { font-size: 14px !important; font-weight: 700 !important; }
    /* Inline badge widgets: full width, left-aligned */
    .lifecycle-step .w-5\/12 div[style*="display:inline-block"],
    .lifecycle-step .w-5\/12 div[style*="display:inline-flex"],
    .lifecycle-step .w-5\/12 span[style*="display:inline-flex"] {
      display: flex !important;
      width: 100% !important;
    }
    /* #leadership section header: visible, compact */
    #lifecycle-header { margin-bottom: 20px !important; }
    #leadership .max-w-4xl { gap: 0 !important; }
    .lifecycle-center-line { display: none !important; }
  }

  @media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr !important; }
    .stat-grid { grid-template-columns: 1fr 1fr !important; }
  }

  /* ─── Class-based mobile overrides (more reliable than attribute selectors) ─── */
  @media (max-width: 768px) {
    .case-grid { grid-template-columns: 1fr !important; }

    .stat-grid { grid-template-columns: 1fr 1fr !important; margin-bottom: 48px !important; }
    .testimonial-grid { grid-template-columns: 1fr !important; gap: 40px !important; }
    .testimonial-side {
      border-left: none !important;
      padding-left: 0 !important;
      border-top: 0.5px solid rgba(255,255,255,0.15) !important;
      padding-top: 32px !important;
      flex-direction: row !important;
      flex-wrap: wrap !important;
      gap: 24px !important;
    }
    .frameworks-grid { grid-template-columns: 1fr !important; }
    #pricing-pro { transform: scale(1) !important; box-shadow: 0 4px 16px -4px rgba(0,0,0,0.2) !important; }
    .contact-grid { grid-template-columns: 1fr !important; gap: 40px !important; }
    .contact-btn-row { flex-direction: column !important; }
    .contact-btn-row a { width: 100% !important; justify-content: center !important; text-align: center !important; }
    .footer-grid { grid-template-columns: 1fr 1fr !important; gap: 28px !important; }

    .leadership-section { height: auto !important; padding: 64px 20px !important; border-bottom: 0.5px solid var(--border); }
    .leadership-sticky {
      position: relative !important;
      top: auto !important;
      height: auto !important;
      overflow: visible !important;
      padding: 0 !important;
    }
    .leadership-sticky > .absolute { display: none !important; }
    #lifecycle-line { display: none !important; }
    #lifecycle-header { opacity: 1 !important; }
    .lifecycle-step {
      flex-direction: column !important;
      align-items: flex-start !important;
      gap: 10px !important;
      padding: 18px 0 !important;
      border-bottom: 0.5px solid var(--border) !important;
      opacity: 1 !important;
      transform: none !important;
    }
    .lifecycle-step .w-5\/12 {
      width: 100% !important;
      text-align: left !important;
      padding-right: 0 !important;
      padding-left: 0 !important;
    }
    .lifecycle-step .relative.shrink-0 { display: none !important; }
    .step-desc { display: block !important; }
    .lifecycle-center-line { display: none; }

    #case-studies { padding: 64px 20px !important; }
    #impact { padding: 64px 20px !important; }
    #frameworks { padding: 64px 20px !important; }
    #contact { padding: 64px 20px !important; }
    footer { padding: 48px 20px 32px !important; }
  }

  /* ═══════════════════════════════════════════════════════════════════════
     MOBILE FIXES — Testimonials · How I Lead · Availability · Footer
     Targets: ≤768px  (and ≤480px for ultra-narrow)
  ════════════════════════════════════════════════════════════════════════ */
  @media (max-width: 768px) {

    /* ── Testimonials ─────────────────────────────────────────────────── */
    /* Inner 2-col grid of testimonial cards → single column */
    .testimonial-grid div[style*="grid-template-columns:1fr 1fr"],
    .testimonial-grid div[style*="grid-template-columns: 1fr 1fr"] {
      grid-template-columns: 1fr !important;
      gap: 16px !important;
    }
    /* Individual testimonial cards: comfortable padding on small screens */
    .testimonial-grid div[style*="border-radius:var(--radius-xl)"] {
      padding: 1.25rem !important;
    }
    /* Section header row: stack instead of side-by-side */
    .testimonial-grid > div { width: 100% !important; }
    /* Verification note: wrap text naturally */
    .testimonial-grid div[style*="align-items:center;gap:8px;padding:10px"] {
      flex-wrap: wrap !important;
      gap: 6px !important;
    }

    /* ── How I Lead (Frameworks) ──────────────────────────────────────── */
    /* 3-col pillar grid → single column */
    #frameworks div[style*="grid-template-columns:1fr 1fr 1fr"] {
      grid-template-columns: 1fr !important;
      gap: 16px !important;
    }
    /* Featured (dark) middle card: remove scale transform on mobile */
    #pricing-pro {
      transform: scale(1) !important;
      box-shadow: 0 4px 20px -4px rgba(0,0,0,0.25) !important;
    }
    /* Section header: no side-by-side on small screens */
    #frameworks div[style*="justify-content:space-between;align-items:flex-end"] {
      flex-direction: column !important;
      align-items: flex-start !important;
      gap: 16px !important;
      margin-bottom: 32px !important;
    }
    #frameworks div[style*="max-width:520px"] { max-width: 100% !important; }

    /* ── Availability / Contact ───────────────────────────────────────── */
    /* 2-col layout → stacked */
    .contact-grid,
    #contact div[style*="grid-template-columns:1fr 1fr"] {
      grid-template-columns: 1fr !important;
      gap: 32px !important;
    }
    /* CTA heading: no forced line-breaks on narrow screens */
    #contact h2 { font-size: clamp(1.8rem, 6vw, 3rem) !important; }
    /* Button row: stack buttons full-width */
    .contact-btn-row,
    #contact div[style*="display:flex;flex-wrap:wrap;gap:12px;margin-bottom"] {
      flex-direction: column !important;
      gap: 10px !important;
    }
    .contact-btn-row a,
    #contact .btn-primary,
    #contact .btn-secondary {
      width: 100% !important;
      justify-content: center !important;
      text-align: center !important;
      box-sizing: border-box !important;
    }
    /* Availability badge: wrap text on tiny screens */
    #contact div[style*="pulse-dot"] ,
    #contact div[style*="Open to opportunities"] {
      flex-wrap: wrap !important;
      gap: 6px !important;
    }
    /* Right column cards: full width, comfortable spacing */
    #contact > div > div > div:last-child {
      width: 100% !important;
    }
    /* Role chip tags: wrap naturally */
    #contact div[style*="flex-wrap:wrap;gap:7px"] { gap: 6px !important; }

    /* ── Footer ──────────────────────────────────────────────────────── */
    /* 4-col grid → 2-col on mobile */
    .footer-grid,
    footer div[style*="grid-template-columns:1fr 1fr 1fr 1fr"] {
      grid-template-columns: 1fr 1fr !important;
      gap: 28px 20px !important;
    }
    /* Bottom bar: stack items on very narrow */
    footer div[style*="justify-content:space-between;align-items:center;flex-wrap:wrap"] {
      flex-direction: column !important;
      align-items: flex-start !important;
      gap: 8px !important;
    }
    /* Footer brand column: no bottom overflow */
    footer p[style*="font-size:11px;color:var(--mist)"] { word-break: break-word; }
    /* Footer list items: comfortable touch targets */
    .footer-link { padding: 2px 0; display: inline-block; }
  }

  /* Ultra-narrow (≤ 480px): footer → single column */
  @media (max-width: 480px) {
    .footer-grid,
    footer div[style*="grid-template-columns:1fr 1fr 1fr 1fr"] {
      grid-template-columns: 1fr !important;
      gap: 24px !important;
    }
    /* Testimonial cards: minimal padding on tiny screens */
    .testimonial-grid div[style*="border-radius:var(--radius-xl)"] {
      padding: 1rem !important;
    }
    /* Availability badge divider: hide on tiny screens */
    #contact span[style*="width:0.5px;height:14px"] { display: none !important; }
  }

  /* ─── Footer ─── */
  .footer-link {
    font-size: 12px;
    color: var(--subtle);
    text-decoration: none;
    transition: color 0.2s ease;
  }
  .footer-link:hover { color: var(--amber-dark); }

  /* ─── Scroll animations ─── */
  .fade-up {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
  }
  .fade-up.visible {
    opacity: 1;
    transform: translateY(0);
  }


  /* ─── Dark Mode Tokens — Confident Amber ─── */
  html[data-theme="dark"] {
    --ink:          #F0EEE9;
    --steel:        #E8E4DB;
    --charcoal:     #C4C1BA;
    --mid:          #A8A49E;
    --subtle:       #807C77;
    --mist:         #4A4845;
    --ghost:        #2A2826;
    --canvas:       #161410;   /* very warm dark, hint of amber in shadows    */
    --white:        #1E1B16;   /* warm dark card bg                           */
    --true-white:   #FFFFFF;

    --amber:        #FACC15;   /* Bright Amber Lift — pops on dark bg          */
    --amber-lift:   #FDE047;   /* Even brighter for hover on dark              */
    --amber-bg:     #2C2108;
    --amber-dark:   #FDE047;
    --sand:         #2A2519;
    --linen:        #312C1F;

    --teal:         #EAB308;   /* semantic alias → amber in dark mode           */
    --teal-bg:      #2C2108;
    --blueprint:    #FACC15;
    --blueprint-bg: #2C2108;
    --coral:        #FBB040;
    --coral-bg:     #2A1D08;
    --emerald:      #FACC15;   /* status dot → amber in dark mode               */

    --grid-line:    rgba(234,179,8,0.06);
    --border:       rgba(240,238,233,0.11);
    --border-mid:   rgba(240,238,233,0.20);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.2), 0 4px 8px -2px rgba(0,0,0,0.3);
    --shadow-md: 0 2px 6px rgba(0,0,0,0.25), 0 10px 20px -4px rgba(0,0,0,0.35);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.3), 0 20px 40px -8px rgba(0,0,0,0.45);
  }

  html[data-theme="dark"] body { background: var(--canvas); color: var(--ink); }
  html[data-theme="dark"] .site-header { background: rgba(22,20,16,0.90); border-color: var(--border); }
  html[data-theme="dark"] .site-header.scrolled { background: rgba(30,27,22,0.96); }
  html[data-theme="dark"] .premium-card { background: var(--white); }
  html[data-theme="dark"] .case-card { background: var(--white); }
  html[data-theme="dark"] .case-preview { background: var(--ghost); }
  html[data-theme="dark"] .domain-strip { background: var(--white); }
  html[data-theme="dark"] footer { background: var(--white); }
  html[data-theme="dark"] #leadership { background: var(--canvas); }
  html[data-theme="dark"] section[style*="background: var(--white)"],
  html[data-theme="dark"] section[style*="background:var(--white)"] { background: var(--white) !important; }

  /* Dark mode: chip readability fixes — ensure chip text contrast on deep bg */
  html[data-theme="dark"] .chip-fintech    { background: #0F2340; color: #82C4F8; border-color: rgba(112,181,240,0.25); }
  html[data-theme="dark"] .chip-designops  { background: #2C2008; color: #F0B040; border-color: rgba(240,170,56,0.25); }
  html[data-theme="dark"] .chip-genai      { background: #2C2108; color: #FACC15; border-color: rgba(234,179,8,0.28); }
  html[data-theme="dark"] .chip-healthcare { background: #2A0F0F; color: #F48888; border-color: rgba(240,120,120,0.25); }
  html[data-theme="dark"] .chip-leadership { background: var(--ghost); color: var(--charcoal); border-color: var(--border-mid); }
  html[data-theme="dark"] .chip-logistics  { background: var(--ghost); color: var(--charcoal); border-color: var(--border-mid); }

  /* ─── Dark mode: btn-primary — Golden Amber on deep dark (8.3:1 — WCAG AAA) ─── */
  html[data-theme="dark"] .btn-primary {
    background: #EAB308;
    color: #0F172A;
    box-shadow: 0 1px 2px rgba(234,179,8,0.22), inset 0 1px 0 rgba(255,255,255,0.14);
  }
  html[data-theme="dark"] .btn-primary:hover {
    background: #FACC15;
    box-shadow: 0 8px 24px -4px rgba(234,179,8,0.42);
  }
  html[data-theme="dark"] .btn-primary .shimmer {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  }

  /* Dark mode theme toggle button */
  .theme-toggle {
    width: 34px; height: 34px;
    border-radius: var(--radius-sm);
    border: 0.5px solid var(--border);
    background: transparent;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
    color: var(--subtle);
    flex-shrink: 0;
  }
  .theme-toggle:hover { background: var(--ghost); border-color: var(--border-mid); color: var(--ink); transform: scale(1.05); }
  .theme-toggle svg { transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1), opacity 0.25s ease; }
  .theme-toggle .icon-moon { position: absolute; opacity: 0; transform: rotate(-30deg) scale(0.8); }
  .theme-toggle .icon-sun  { position: absolute; opacity: 1; transform: rotate(0deg) scale(1); }
  html[data-theme="dark"] .theme-toggle .icon-moon { opacity: 1; transform: rotate(0deg) scale(1); }
  html[data-theme="dark"] .theme-toggle .icon-sun  { opacity: 0; transform: rotate(30deg) scale(0.8); }
  .theme-toggle { position: relative; }


  /* ─── Case Study Modal ─── */
  .cs-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: stretch;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.35s ease;
    isolation: isolate;
  }
  .cs-overlay.open {
    opacity: 1;
    pointer-events: all;
  }
  .cs-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15,15,15,0.6);
    backdrop-filter: blur(6px);
  }
  html[data-theme="dark"] .cs-backdrop { background: rgba(0,0,0,0.75); }

  .cs-panel {
    position: relative;
    z-index: 1;
    width: min(760px, 100vw);
    height: 100vh;
    overflow-y: auto;
    background: var(--white);
    margin-left: auto;
    transform: translateX(40px);
    transition: transform 0.45s cubic-bezier(0.22,1,0.36,1);
    display: flex;
    flex-direction: column;
  }
  .cs-overlay.open .cs-panel {
    transform: translateX(0);
  }

  .cs-panel::-webkit-scrollbar { width: 4px; }
  .cs-panel::-webkit-scrollbar-track { background: transparent; }
  .cs-panel::-webkit-scrollbar-thumb { background: var(--mist); border-radius: 2px; }

  .cs-header {
    padding: 28px 40px 24px;
    border-bottom: 0.5px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    position: sticky;
    top: 0;
    background: var(--white);
    z-index: 10;
  }
  .cs-close {
    width: 32px; height: 32px;
    border-radius: var(--radius-sm);
    border: 0.5px solid var(--border);
    background: transparent;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: var(--subtle);
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    flex-shrink: 0;
  }
  .cs-close:hover { background: var(--ghost); color: var(--ink); transform: scale(1.08); }

  .cs-body { padding: 36px 40px; flex: 1; }

  .cs-hero-visual {
    width: 100%;
    height: 200px;
    background: var(--canvas);
    border-radius: var(--radius-lg);
    border: 0.5px solid var(--border);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 32px;
  }

  .cs-metric-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 32px;
  }
  .cs-metric {
    background: var(--canvas);
    border: 0.5px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
  }
  .cs-metric-val { font-size: 22px; font-weight: 700; color: var(--ink); letter-spacing: -0.02em; margin-bottom: 2px; }
  .cs-metric-lbl { font-size: 10px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--subtle); font-family: var(--font-mono); }

  .cs-section-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--subtle);
    font-family: var(--font-mono);
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 0.5px solid var(--border);
  }
  .cs-body p { font-size: 14px; color: var(--mid); line-height: 1.75; margin-bottom: 24px; }
  .cs-body h3 { font-size: 17px; font-weight: 700; color: var(--ink); letter-spacing: -0.01em; margin-bottom: 8px; }

  .cs-tag-row { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 28px; }

  .cs-process-step {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 14px 0;
    border-bottom: 0.5px solid var(--border);
  }
  .cs-process-step:last-child { border-bottom: none; }
  .cs-step-num {
    width: 24px; height: 24px;
    border-radius: var(--radius-xs);
    background: var(--ink);
    color: var(--white);
    font-size: 10px;
    font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-mono);
    flex-shrink: 0;
    margin-top: 1px;
  }
  html[data-theme="dark"] .cs-step-num { background: var(--ink); color: var(--canvas); }
  .cs-step-content h4 { font-size: 13px; font-weight: 600; color: var(--ink); margin-bottom: 3px; }
  .cs-step-content p { font-size: 12px; color: var(--mid); line-height: 1.6; margin-bottom: 0; }

  .cs-footer-cta {
    margin: 32px 0 0;
    padding: 20px;
    background: var(--canvas);
    border-radius: var(--radius-lg);
    border: 0.5px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
  }
  .cs-footer-cta p { font-size: 13px; color: var(--mid); margin: 0; }

  /* ─── Scroll offset for fixed nav ─── */
  section[id], div[id] {
    scroll-margin-top: var(--nav-h);
  }


  /* ─── Dark mode: hero card SVG ─── */
  html[data-theme="dark"] .premium-card { background: var(--white); border-color: var(--border); }
  html[data-theme="dark"] .premium-card rect[fill="var(--white)"] { fill: var(--ghost); }

  /* ─── Dark mode: case preview gradient overlay ─── */
  html[data-theme="dark"] .case-preview::after {
    background: linear-gradient(to bottom, transparent 60%, rgba(30,28,26,0.4));
  }

  /* ─── Dark mode: SVG microanimations — lighter base strokes ─── */
  html[data-theme="dark"] .case-preview svg circle,
  html[data-theme="dark"] .case-preview svg rect,
  html[data-theme="dark"] .case-preview svg line,
  html[data-theme="dark"] .case-preview svg path {
    stroke: rgba(240,238,233,0.12);
    fill: rgba(240,238,233,0.12);
  }
  html[data-theme="dark"] .case-preview svg circle[fill^="rgba(15"] { fill: rgba(240,238,233,0.15); }
  html[data-theme="dark"] .case-preview svg g[fill^="rgba(15"] { fill: rgba(240,238,233,0.15); }
  html[data-theme="dark"] .case-card:nth-child(1):hover .case-preview circle:not([r="12"]) { fill: var(--ink); }
  html[data-theme="dark"] .case-card:nth-child(1):hover .case-preview circle[r="12"] { stroke: var(--ink); }
  html[data-theme="dark"] .case-card:nth-child(2):hover .case-preview rect { fill: var(--ink); }
  html[data-theme="dark"] .case-card:nth-child(2):hover .case-preview circle { fill: var(--ink); }
  html[data-theme="dark"] .case-card:nth-child(3):hover .case-preview rect[rx="4"] { stroke: var(--ink); }
  html[data-theme="dark"] .case-card:nth-child(4):hover .case-preview circle[r="8"] { fill: var(--ink); }
  html[data-theme="dark"] .case-card:nth-child(5):hover .case-preview path:last-of-type { stroke: var(--ink); }
  html[data-theme="dark"] .case-card:nth-child(6):hover .case-preview path[stroke-linecap] { stroke: var(--ink); }
  html[data-theme="dark"] .case-card:nth-child(6):hover .case-preview circle { fill: var(--ink); }

  /* ─── Dark mode: stat cards in impact section ─── */
  html[data-theme="dark"] .stat-card {
    background: rgba(240,238,233,0.06);
    border-color: rgba(240,238,233,0.10);
  }
  html[data-theme="dark"] .stat-card:hover {
    background: rgba(240,238,233,0.10);
    border-color: rgba(240,238,233,0.16);
  }
  /* boost stat-label visibility in dark mode — was rgba(255,255,255,0.55) on near-black */
  html[data-theme="dark"] .stat-label {
    color: rgba(240,238,233,0.75) !important;
  }
  /* boost Leadership Voice eyebrow label */
  html[data-theme="dark"] #impact .label-sm {
    color: rgba(240,238,233,0.6) !important;
  }

  /* ─── Dark mode: testimonial slider buttons ─── */
  html[data-theme="dark"] #testimonial-prev,
  html[data-theme="dark"] #testimonial-next {
    border-color: rgba(240,238,233,0.15);
    color: rgba(240,238,233,0.7);
  }
  html[data-theme="dark"] #testimonial-prev:hover,
  html[data-theme="dark"] #testimonial-next:hover {
    background: rgba(240,238,233,0.1);
  }

  /* ─── Dark mode: side stats labels and values ─── */
  html[data-theme="dark"] .dark-side-label { color: rgba(240,238,233,0.35) !important; }
  html[data-theme="dark"] .dark-side-val   { color: var(--ink) !important; }
  html[data-theme="dark"] .dark-side-sub   { color: rgba(240,238,233,0.35) !important; }

  /* ─── Dark mode: leadership frameworks cards ─── */
  html[data-theme="dark"] #pricing-hobby,
  html[data-theme="dark"] #pricing-ent {
    background: var(--white) !important;
    border-color: var(--border) !important;
  }
  html[data-theme="dark"] #pricing-pro {
    background: var(--ink) !important;
    box-shadow: 0 20px 40px -8px rgba(0,0,0,0.5) !important;
  }

  /* ─── Dark mode: check icons in framework cards ─── */
  html[data-theme="dark"] .fw-check-light {
    background: var(--ghost) !important;
    color: var(--ink) !important;
  }

  /* ─── Dark mode: domain strip ─── */
  html[data-theme="dark"] .domain-strip { background: var(--white); border-color: var(--border); }

  /* ─── Dark mode: btn-secondary ─── */
  html[data-theme="dark"] .btn-secondary {
    color: var(--ink);
    border-color: var(--border-mid);
  }
  html[data-theme="dark"] .btn-secondary:hover {
    background: rgba(240,238,233,0.07);
    border-color: var(--border-mid);
  }

  /* ─── Dark mode: footer links ─── */
  html[data-theme="dark"] .footer-link { color: var(--mid); }
  html[data-theme="dark"] .footer-link:hover { color: var(--amber); }

  /* ─── Dark mode: response time banner teal ─── */
  html[data-theme="dark"] .teal-response-banner {
    background: var(--teal-bg);
    border-color: rgba(234,179,8,0.22);
  }

  /* ─── Dark mode: cs-body paragraph text — ensure readability ─── */
  html[data-theme="dark"] .cs-body p { color: var(--mid); }
  html[data-theme="dark"] .cs-body h4 { color: var(--ink); }

  /* ─── Dark mode: card open btn ─── */
  html[data-theme="dark"] .card-open-btn {
    border-color: var(--border);
    color: var(--subtle);
  }
  html[data-theme="dark"] .case-card:hover .card-open-btn {
    background: #EAB308;
    color: #0F172A;
    border-color: #EAB308;
  }
  html[data-theme="dark"] .case-card::after { background: var(--ink); }

  /* ─── Dark mode: hero card text overlaid on SVG ─── */
  html[data-theme="dark"] #hero-design-label { fill: var(--canvas) !important; }
  html[data-theme="dark"] #hero-node-dark { fill: var(--ink) !important; }
  html[data-theme="dark"] #hero-node-text { fill: var(--canvas) !important; }

  /* ─── Dark mode: timeline badges ─── */
  html[data-theme="dark"] .timeline-badge-dark {
    background: var(--ink) !important;
    color: var(--canvas) !important;
  }
  html[data-theme="dark"] .timeline-ghost-badge {
    background: var(--ghost) !important;
    color: var(--ink) !important;
  }

  /* ─── Dark mode: Tech Feasibility Secured badge ─── */
  html[data-theme="dark"] .tech-feasibility-badge {
    background: rgba(240,238,233,0.12) !important;
    color: #F0EEE9 !important;
    border: 0.5px solid rgba(240,238,233,0.22) !important;
  }


  /* ─── Pricing Pro card dark mode ─── */
  html[data-theme="dark"] [data-pro-card="true"] {
    background: #E8E5DF !important;
    box-shadow: 0 20px 40px -8px rgba(0,0,0,0.45) !important;
    border: 0.5px solid rgba(15,15,15,0.15) !important;
  }
  html[data-theme="dark"] .pro-card-eyebrow { color: #5A5752 !important; }
  html[data-theme="dark"] .pro-card-title   { color: #0F0F0F !important; }
  html[data-theme="dark"] .pro-card-body    { color: #3A3835 !important; }
  html[data-theme="dark"] .pro-card-li      { color: #2E2C2A !important; }
  html[data-theme="dark"] .pro-card-check   { background: rgba(15,15,15,0.12) !important; color: #0F0F0F !important; }

  /* ─── Dark mode: Leadership Voice label (has hardcoded inline color) ─── */
  html[data-theme="dark"] .impact-eyebrow-label { color: rgba(240,238,233,0.65) !important; }

  /* ─── Node line animation ─── */
  .node-line { stroke-dasharray: 4; animation: dash 30s linear infinite; }
  @keyframes dash { to { stroke-dashoffset: -100; } }
  /* ─── Chip hover ─── */
  .chip {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: default;
  }
  .chip:hover { transform: translateY(-1px); box-shadow: 0 2px 6px rgba(0,0,0,0.08); }

  /* ─── Section fade-in on scroll ─── */
  .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }

  /* ─── Stat card count-up pulse ─── */
  @keyframes stat-in {
    from { opacity: 0; transform: translateY(10px) scale(0.95); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
  }
  .stat-card.animated .stat-val {
    animation: stat-in 0.5s var(--ease-out) both;
  }

  /* ─── Timeline step compact ─── */
  .lifecycle-step { padding: 8px 0; }

  /* ─── Dot ring pulse on active ─── */
  @keyframes dot-ping {
    0%   { box-shadow: 0 0 0 0 rgba(15,15,15,0.3); }
    70%  { box-shadow: 0 0 0 6px rgba(15,15,15,0); }
    100% { box-shadow: 0 0 0 0 rgba(15,15,15,0); }
  }
  .lifecycle-step.active [data-dot] {
    animation: dot-ping 1.5s ease-out 1;
  }

  /* ─── Case card SVG microanimations (CSS, not Tailwind) ─── */

  /* Shared SVG transition base */
  .case-preview svg * {
    transition: stroke 0.5s ease, fill 0.5s ease, opacity 0.5s ease,
                stroke-width 0.5s ease, stroke-dashoffset 0.7s ease,
                transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-box: fill-box;
    transform-origin: center;
  }

  /* Card 01 – Unified SaaS: hub lines draw, circles converge */
  .case-card:nth-child(1) .case-preview circle { transition: transform 0.6s cubic-bezier(0.34,1.56,0.64,1), fill 0.4s ease; }
  .case-card:nth-child(1):hover .case-preview line { stroke: rgba(15,15,15,0.4); stroke-width: 1.2px; }
  .case-card:nth-child(1):hover .case-preview circle:not([r="12"]) { fill: var(--ink); transform: scale(1.5); }
  .case-card:nth-child(1):hover .case-preview circle[r="12"] { stroke: var(--ink); stroke-width: 2px; }

  /* Card 02 – DesignOps: corner squares converge to center */
  .case-card:nth-child(2) .case-preview rect { transition: transform 0.55s cubic-bezier(0.34,1.56,0.64,1), fill 0.4s ease; transform-origin: 50% 50%; }
  .case-card:nth-child(2) .case-preview line { transition: stroke 0.4s ease, stroke-width 0.4s ease; }
  .case-card:nth-child(2) .case-preview circle { transition: transform 0.5s cubic-bezier(0.34,1.56,0.64,1), fill 0.4s ease; }
  .case-card:nth-child(2):hover .case-preview rect:nth-child(1) { transform: translate(16px, 16px); fill: var(--ink); }
  .case-card:nth-child(2):hover .case-preview rect:nth-child(2) { transform: translate(-16px, 16px); fill: var(--ink); }
  .case-card:nth-child(2):hover .case-preview rect:nth-child(3) { transform: translate(16px, -16px); fill: var(--ink); }
  .case-card:nth-child(2):hover .case-preview rect:nth-child(4) { transform: translate(-16px, -16px); fill: var(--ink); }
  .case-card:nth-child(2):hover .case-preview line { stroke: rgba(15,15,15,0.35); stroke-width: 1.2px; }
  .case-card:nth-child(2):hover .case-preview circle { fill: var(--ink); transform: scale(1.6); }

  /* Card 03 – GenAI: output branches draw out */
  .case-card:nth-child(3) .case-preview path[stroke-dasharray] {
    stroke-dasharray: 60;
    stroke-dashoffset: 60;
  }
  .case-card:nth-child(3):hover .case-preview path[stroke-dasharray] { stroke-dashoffset: 0; stroke: rgba(15,15,15,0.55); }
  .case-card:nth-child(3):hover .case-preview rect[rx="4"] { stroke: var(--ink); stroke-width: 1.5px; }
  .case-card:nth-child(3):hover .case-preview circle { fill: var(--ink); transform: scale(1.4); }

  /* Card 04 – Leadership: orbit circles expand, center pulses */
  .case-card:nth-child(4) .case-preview circle[r="8"] { transition: transform 0.5s cubic-bezier(0.34,1.56,0.64,1), fill 0.3s ease; }
  .case-card:nth-child(4) .case-preview circle[r="22"],
  .case-card:nth-child(4) .case-preview circle[r="36"] { transition: stroke 0.5s ease, stroke-width 0.5s ease; }
  .case-card:nth-child(4) .case-preview circle[r="3.5"] { transition: transform 0.6s cubic-bezier(0.34,1.56,0.64,1), fill 0.4s ease; }
  .case-card:nth-child(4):hover .case-preview circle[r="8"] { transform: scale(1.35); }
  .case-card:nth-child(4):hover .case-preview circle[r="22"] { stroke: rgba(15,15,15,0.3); stroke-width: 1.2px; }
  .case-card:nth-child(4):hover .case-preview circle[r="36"] { stroke: rgba(15,15,15,0.15); stroke-width: 1px; }
  .case-card:nth-child(4):hover .case-preview circle[r="3.5"]:nth-child(1) { transform: translateY(-8px); fill: var(--ink); }
  .case-card:nth-child(4):hover .case-preview circle[r="3.5"]:nth-child(2) { transform: translateX(8px); fill: var(--ink); }
  .case-card:nth-child(4):hover .case-preview circle[r="3.5"]:nth-child(3) { transform: translateX(-8px); fill: var(--ink); }
  .case-card:nth-child(4):hover .case-preview circle[r="3.5"]:nth-child(4) { transform: translateY(8px); fill: var(--ink); }

  /* Card 05 – Healthcare: ECG waveform draws left to right */
  .case-card:nth-child(5) .case-preview path:last-of-type {
    stroke-dasharray: 400;
    stroke-dashoffset: 400;
  }
  .case-card:nth-child(5):hover .case-preview path:last-of-type {
    stroke-dashoffset: 0;
    stroke: rgba(15,15,15,0.7);
    stroke-width: 2px;
    transition: stroke-dashoffset 1.1s cubic-bezier(0.4,0,0.2,1), stroke 0.3s ease, stroke-width 0.3s ease;
  }
  .case-card:nth-child(5):hover .case-preview circle { fill: var(--ink); transform: scale(1.5); }

  /* Card 06 – Fintech: data points appear, line draws upward */
  .case-card:nth-child(6) .case-preview path[stroke-linecap] {
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
  }
  .case-card:nth-child(6) .case-preview circle { transition: transform 0.5s cubic-bezier(0.34,1.56,0.64,1) var(--delay, 0s), fill 0.3s ease; }
  .case-card:nth-child(6) .case-preview circle:nth-child(1) { --delay: 0s; }
  .case-card:nth-child(6) .case-preview circle:nth-child(2) { --delay: 0.08s; }
  .case-card:nth-child(6) .case-preview circle:nth-child(3) { --delay: 0.16s; }
  .case-card:nth-child(6) .case-preview circle:nth-child(4) { --delay: 0.24s; }
  .case-card:nth-child(6):hover .case-preview path[stroke-linecap] {
    stroke-dashoffset: 0;
    stroke: rgba(15,15,15,0.7);
    stroke-width: 2px;
    transition: stroke-dashoffset 0.8s cubic-bezier(0.4,0,0.2,1), stroke 0.3s ease;
  }
  .case-card:nth-child(6):hover .case-preview circle { fill: var(--ink); transform: scale(1.6); }

  /* Card hover — top accent bar slides in */
  .case-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--ink);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
  }
  .case-card:hover::after { transform: scaleX(1); }

  /* ROI badge animates on card hover */
  .case-card .roi-badge {
    transition: letter-spacing 0.3s ease, color 0.3s ease;
  }
  .case-card:hover .roi-badge {
    letter-spacing: 0.04em;
    color: var(--steel);
  }

  /* Link arrow pull */
  .case-card .link-arrow {
    transition: gap 0.25s ease, color 0.2s ease;
  }
  .case-card:hover .link-arrow {
    gap: 8px;
  }

  /* ─── Case Study Modal Styles ─── */
  #cs-page {
    background: var(--white);
    font-family: var(--font-sans);
    color: var(--ink);
    animation: csm-fade-in 0.35s var(--ease-out) both;
  }
  @keyframes csm-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  /* ── Reading progress bar ── */
  .csm-read-progress {
    position: fixed;
    top: 0; left: 0;
    width: 0%;
    height: 2px;
    background: var(--ink);
    z-index: 200;
    transition: width 0.1s linear;
    pointer-events: none;
  }
  html[data-theme="dark"] .csm-read-progress { background: var(--ghost); }

  /* ── Sticky nav ── */
  .csm-nav {
    position: sticky; top: 0; z-index: 100;
    display: flex; justify-content: space-between; align-items: center;
    padding: 0 48px; height: 56px;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px) saturate(1.5);
    -webkit-backdrop-filter: blur(12px) saturate(1.5);
    border-bottom: 0.5px solid var(--border);
    transition: background 0.3s ease;
  }
  html[data-theme="dark"] .csm-nav {
    background: rgba(15,15,13,0.92);
  }
  .csm-back {
    display: inline-flex; align-items: center; gap: 7px;
    font-size: 11px; font-weight: 600; letter-spacing: 0.03em;
    color: var(--subtle); cursor: pointer;
    border: none; background: none; font-family: var(--font-sans);
    padding: 0; transition: color 0.2s ease, gap 0.2s ease;
  }
  .csm-back:hover { color: var(--ink); gap: 10px; }
  .csm-nav-right { display: flex; align-items: center; gap: 16px; }
  .csm-progress { display: flex; align-items: center; gap: 4px; }
  .csm-progress-dot {
    width: 5px; height: 5px; border-radius: 50%;
    background: var(--border); transition: background 0.25s, transform 0.25s;
  }
  .csm-progress-dot.active { background: var(--ink); transform: scale(1.3); }

  /* ── Hero image banner ── */
  .csm-hero {
    width: 100%;
    height: clamp(240px, 38vh, 420px);
    overflow: hidden;
    position: relative;
    background: var(--canvas);
  }
  .csm-hero-img {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
    z-index: 1;   /* above the SVG (z-index 0) but below overlay (z-index 2) */
    transition: transform 0.6s var(--ease-out);
  }
  .csm-hero:hover .csm-hero-img { transform: scale(1.025); }
  .csm-hero-overlay {
    position: absolute; inset: 0;
    z-index: 2;
    background: linear-gradient(to bottom, transparent 30%, rgba(15,15,15,0.55) 100%);
    pointer-events: none;
  }
  .csm-hero-badge {
    position: absolute; bottom: 24px; left: 32px;
    z-index: 3;
    display: flex; align-items: center; gap: 10px;
  }
  .csm-hero-roi {
    background: rgba(15,15,15,0.72);
    backdrop-filter: blur(8px);
    color: #fff;
    font-size: 11px; font-weight: 700;
    font-family: var(--font-mono);
    letter-spacing: 0.06em;
    border-radius: 4px;
    padding: 4px 12px;
  }

  /* ── Generative SVG "hero" for cases without an image — sits behind photo ── */
  .csm-hero-svg {
    width: 100%; height: 100%;
    position: absolute; inset: 0;
    z-index: 0;
  }

  /* ── Layout: sidebar + main ── */
  .csm-body-layout {
    display: grid;
    grid-template-columns: 168px 1fr;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 32px;
    gap: 0;
    align-items: start;
  }
  @media (max-width: 960px) {
    .csm-body-layout { grid-template-columns: 1fr; padding: 0 20px; }
    .csm-sidebar { display: none; }
  }

  /* ── Sidebar TOC ── */
  .csm-sidebar {
    position: sticky;
    top: 72px;
    padding-top: 72px;
    padding-right: 32px;
  }
  .csm-toc { display: flex; flex-direction: column; gap: 2px; }
  .csm-toc-link {
    font-size: 10px; font-weight: 600;
    letter-spacing: 0.08em; text-transform: uppercase;
    color: var(--subtle); text-decoration: none;
    font-family: var(--font-mono);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    transition: color 0.2s ease, background 0.2s ease, padding-left 0.2s ease;
    display: flex; align-items: center; gap: 7px;
  }
  .csm-toc-link::before {
    content: '';
    width: 12px; height: 0.5px;
    background: currentColor; opacity: 0.35;
    flex-shrink: 0;
    transition: width 0.2s ease, opacity 0.2s ease;
  }
  .csm-toc-link:hover { color: var(--ink); background: var(--canvas); padding-left: 14px; }
  .csm-toc-link:hover::before { width: 16px; opacity: 0.7; }
  .csm-toc-link.active { color: var(--ink); background: var(--canvas); }

  /* ── Main content column ── */
  .csm-wrap { max-width: 720px; margin: 0; padding: 0; }
  .csm-body-layout .csm-wrap { max-width: 720px; padding: 0; }

  /* ── Header ── */
  .csm-header { padding: 56px 0 44px; border-bottom: 0.5px solid var(--border); }
  .csm-overline { display: flex; align-items: center; gap: 10px; margin-bottom: 22px; }
  .csm-overline-text {
    font-size: 10px; font-weight: 600; letter-spacing: 0.12em;
    text-transform: uppercase; color: var(--subtle); font-family: var(--font-mono);
  }
  .csm-overline-div { width: 1px; height: 12px; background: var(--border); }
  .csm-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
    font-weight: 700; color: var(--ink);
    letter-spacing: -0.04em; line-height: 1.05; margin: 0 0 14px;
  }
  .csm-tagline {
    font-size: 16px; color: var(--mid);
    line-height: 1.72; margin: 0;
    font-weight: 400; max-width: 580px;
  }

  /* ── Key metrics strip ── */
  .csm-metrics {
    display: grid; grid-template-columns: repeat(3,1fr);
    border-bottom: 0.5px solid var(--border);
    background: var(--canvas);
  }
  .csm-metric {
    padding: 28px 0;
    border-right: 0.5px solid var(--border);
    position: relative;
    overflow: hidden;
    transition: background 0.2s ease;
  }
  .csm-metric:hover { background: var(--ghost); }
  .csm-metric::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--ink); opacity: 0;
    transition: opacity 0.2s ease;
  }
  .csm-metric:hover::before { opacity: 1; }
  .csm-metric:last-child { border-right: none; padding-left: 28px; }
  .csm-metric:first-child { padding-right: 28px; }
  .csm-metric:nth-child(2) { padding: 28px; }
  .csm-metric-val {
    font-size: clamp(1.7rem, 3vw, 2.2rem);
    font-weight: 700; color: var(--ink);
    letter-spacing: -0.05em; line-height: 1;
    margin-bottom: 6px;
  }
  .csm-metric-lbl {
    font-size: 10px; font-weight: 600;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--subtle); font-family: var(--font-mono);
  }

  /* ── Sections ── */
  .csm-section {
    padding: 44px 0;
    border-bottom: 0.5px solid var(--border);
  }
  .csm-section-label {
    display: flex; align-items: center; gap: 10px;
    font-size: 10px; font-weight: 700;
    letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--subtle); font-family: var(--font-mono);
    margin-bottom: 20px;
  }
  .csm-section-label::before {
    content: '';
    display: inline-block;
    width: 16px; height: 0.5px;
    background: var(--border-mid); flex-shrink: 0;
  }
  .csm-prose {
    font-size: 15px; color: var(--mid);
    line-height: 1.9; margin: 0;
  }

  /* ── Process steps ── */
  .csm-step {
    display: flex; gap: 20px;
    padding: 22px 0;
    border-bottom: 0.5px solid var(--border);
    transition: background 0.2s ease;
  }
  .csm-step:hover { background: var(--canvas); margin: 0 -16px; padding: 22px 16px; }
  .csm-step:last-child { border-bottom: none; }
  .csm-step-num {
    font-size: 10px; font-weight: 700;
    font-family: var(--font-mono); color: var(--subtle);
    letter-spacing: 0.05em; min-width: 28px;
    padding-top: 2px; flex-shrink: 0;
  }
  .csm-step-body { flex: 1; }
  .csm-step-title {
    font-size: 14px; font-weight: 600;
    color: var(--ink); margin-bottom: 6px;
    letter-spacing: -0.015em;
  }
  .csm-step-text { font-size: 13px; color: var(--mid); line-height: 1.78; }

  /* ── Tags ── */
  .csm-tags { display: flex; flex-wrap: wrap; gap: 8px; }

  /* ── CTA block ── */
  .csm-contact {
    padding: 44px 0 64px;
    display: flex; align-items: center;
    justify-content: space-between;
    flex-wrap: wrap; gap: 20px;
    border-top: none;
  }
  .csm-contact-inner {
    background: var(--canvas);
    border: 0.5px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 28px 32px;
    display: flex; align-items: center;
    justify-content: space-between;
    flex-wrap: wrap; gap: 16px;
    width: 100%;
  }
  .csm-contact-text { font-size: 14px; color: var(--mid); line-height: 1.6; }
  .csm-contact-text strong {
    display: block; font-size: 16px; font-weight: 600;
    color: var(--ink); margin-bottom: 5px; letter-spacing: -0.015em;
  }

  /* ── Adjacent case study navigation ── */
  .csm-adj {
    border-top: 0.5px solid var(--border);
    display: grid; grid-template-columns: 1fr 1fr;
  }
  .csm-adj-card {
    padding: 28px 32px; cursor: pointer;
    transition: background 0.2s ease;
    border: none; background: none;
    font-family: var(--font-sans); text-align: left;
    position: relative; overflow: hidden;
  }
  .csm-adj-card::after {
    content: '';
    position: absolute; bottom: 0; left: 0; right: 0;
    height: 2px; background: var(--ink);
    transform: scaleX(0); transform-origin: left;
    transition: transform 0.3s var(--ease-out);
  }
  .csm-adj-card:last-child::after { transform-origin: right; }
  .csm-adj-card:hover::after { transform: scaleX(1); }
  .csm-adj-card:first-child { border-right: 0.5px solid var(--border); }
  .csm-adj-card:last-child { text-align: right; }
  .csm-adj-card:hover { background: var(--canvas); }
  .csm-adj-dir {
    font-size: 9px; font-weight: 700;
    letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--subtle); font-family: var(--font-mono);
    margin-bottom: 8px; display: block;
  }
  .csm-adj-title {
    font-size: 14px; font-weight: 600;
    color: var(--ink); letter-spacing: -0.015em;
    margin-bottom: 4px; display: block;
  }
  .csm-adj-tag { font-size: 11px; color: var(--subtle); display: block; }

  /* ── Responsive ── */
  @media (max-width: 640px) {
    .csm-nav { padding: 0 20px; }
    .csm-metrics { grid-template-columns: 1fr 1fr; }
    .csm-metric:last-child { grid-column: span 2; border-right: none; border-top: 0.5px solid var(--border); padding: 22px 0 22px; }
    .csm-adj { grid-template-columns: 1fr; }
    .csm-adj-card:first-child { border-right: none; border-bottom: 0.5px solid var(--border); }
    .csm-adj-card:last-child { text-align: left; }
    .csm-title { font-size: 1.85rem; }
    .csm-hero { height: 200px; }
    .csm-hero-badge { left: 20px; bottom: 16px; }
    .csm-contact-inner { padding: 20px; }
  }


  /* ─── About section mobile ─── */
  @media (max-width: 768px) {
    #about { padding: 64px 20px !important; }
    #about > div > div { grid-template-columns: 1fr !important; gap: 32px !important; }
  }

  /* ─── Case Study: CEO Quote Block ─── */
  .csm-ceo-quote {
    margin: 0;
    padding: 40px 0;
    border-bottom: 0.5px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .csm-ceo-inner {
    background: linear-gradient(135deg, var(--canvas) 0%, var(--ghost) 100%);
    border: 0.5px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 28px 32px;
    position: relative;
    overflow: hidden;
  }
  .csm-ceo-inner::before {
    content: '\201C';
    position: absolute; top: -12px; left: 20px;
    font-size: 80px; font-weight: 900;
    color: var(--ink); opacity: 0.06;
    font-family: Georgia, serif;
    line-height: 1;
    pointer-events: none;
  }
  html[data-theme="dark"] .csm-ceo-inner {
    background: rgba(240,238,233,0.04);
    border-color: var(--border-mid);
  }
  .csm-ceo-mark {
    color: var(--ink);
    opacity: 0.12;
    flex-shrink: 0;
    display: none;
  }
  .csm-ceo-text {
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--ink);
    line-height: 1.6;
    letter-spacing: -0.015em;
    margin: 0 0 20px;
    font-style: italic;
  }
  .csm-ceo-attribution {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .csm-ceo-attr-dot {
    width: 24px; height: 1px;
    background: var(--border-mid); flex-shrink: 0;
  }
  .csm-ceo-author {
    font-size: 12px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-family: var(--font-mono);
  }
  .csm-ceo-context {
    font-size: 11px;
    color: var(--subtle);
    font-family: var(--font-mono);
  }

  /* ─── Case Study: Artifact Placeholders (fallback) ─── */
  .csm-artifacts { display: grid; grid-template-columns: 1fr; gap: 10px; }
  .csm-artifact-placeholder {
    display: flex; align-items: flex-start; gap: 14px; padding: 18px;
    background: var(--canvas); border: 1px dashed var(--border-mid);
    border-radius: var(--radius-lg);
    transition: border-color 0.25s ease, background 0.25s ease;
  }
  html[data-theme="dark"] .csm-artifact-placeholder {
    background: rgba(240,238,233,0.04); border-color: rgba(240,238,233,0.12);
  }
  .csm-artifact-icon {
    width: 36px; height: 36px; border-radius: var(--radius-md);
    background: var(--white); border: 0.5px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    color: var(--subtle); flex-shrink: 0; box-shadow: var(--shadow-sm);
  }
  .csm-artifact-meta { display: flex; flex-direction: column; gap: 3px; flex: 1; }
  .csm-artifact-type {
    font-size: 9px; font-weight: 700; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--subtle); font-family: var(--font-mono);
  }
  .csm-artifact-label { font-size: 13px; font-weight: 600; color: var(--ink); line-height: 1.4; }
  .csm-artifact-hint { font-size: 11px; color: var(--mist); font-family: var(--font-mono); line-height: 1.5; }

  /* ─── SVG Artifact Strip ─── */
  .csm-artifact-svg-wrap {
    position: relative;
    width: 100%;
    height: 210px;
    overflow: hidden;
    border-radius: var(--radius-lg);
    border: 0.5px solid var(--border);
    background: var(--canvas);
    cursor: pointer;
    transition: box-shadow 0.22s ease, transform 0.18s ease;
    outline: none;
  }
  .csm-artifact-svg-wrap:hover,
  .csm-artifact-svg-wrap:focus-visible {
    box-shadow: 0 6px 28px rgba(0,0,0,0.11);
    transform: translateY(-2px);
  }
  .csm-artifact-svg-wrap:focus-visible { box-shadow: 0 0 0 3px var(--amber, #E8A020); }
  .csm-artifact-svg-img {
    display: block; width: 100%; height: auto;
    object-fit: cover; object-position: top center;
    pointer-events: none; user-select: none;
  }
  /* Bottom dissolve */
  .csm-artifact-fade {
    position: absolute; inset: 0; pointer-events: none;
    background: linear-gradient(to bottom, transparent 40%, var(--canvas, #F7F6F3) 100%);
  }
  html[data-theme="dark"] .csm-artifact-fade {
    background: linear-gradient(to bottom, transparent 40%, var(--canvas, #16150F) 100%);
  }
  /* Caption + expand bar pinned to bottom */
  .csm-artifact-bar {
    position: absolute; bottom: 0; left: 0; right: 0; z-index: 2;
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 12px 10px;
  }
  .csm-artifact-svg-caption {
    font-size: 10px; font-weight: 600; letter-spacing: 0.06em;
    text-transform: uppercase; color: var(--subtle); font-family: var(--font-mono);
  }
  /* Expand pill — visible on hover */
  .csm-artifact-expand {
    display: flex; align-items: center; gap: 5px;
    padding: 5px 10px 5px 8px;
    background: var(--white, #fff);
    border: 0.5px solid var(--border);
    border-radius: 99px;
    font-size: 10px; font-weight: 600; font-family: var(--font-mono);
    color: var(--ink); cursor: pointer;
    opacity: 0; transform: translateY(4px);
    transition: opacity 0.18s ease, transform 0.18s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.10);
    pointer-events: none;
    white-space: nowrap;
  }
  .csm-artifact-svg-wrap:hover .csm-artifact-expand,
  .csm-artifact-svg-wrap:focus-visible .csm-artifact-expand {
    opacity: 1; transform: translateY(0); pointer-events: auto;
  }
  html[data-theme="dark"] .csm-artifact-expand {
    background: rgba(28,28,22,0.92); color: var(--paper);
    border-color: rgba(240,238,233,0.15);
  }

  /* ─── Artifact Lightbox ─── */
  #artifact-lightbox {
    display: none; position: fixed; inset: 0; z-index: 9999;
    align-items: center; justify-content: center;
  }
  #artifact-lightbox.alb-open { display: flex; }
  .alb-backdrop {
    position: absolute; inset: 0;
    background: rgba(8,8,6,0.80);
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    animation: albFadeIn 0.2s ease both;
  }
  .alb-panel {
    position: relative; z-index: 1;
    width: min(94vw, 1120px); max-height: 92vh;
    display: flex; flex-direction: column;
    background: var(--white, #fff);
    border-radius: var(--radius-lg, 16px);
    overflow: hidden;
    box-shadow: 0 32px 100px rgba(0,0,0,0.40);
    animation: albSlideUp 0.26s cubic-bezier(0.22,1,0.36,1) both;
  }
  html[data-theme="dark"] .alb-panel {
    background: #1C1B16;
    border: 0.5px solid rgba(240,238,233,0.1);
  }
  .alb-close {
    position: absolute; top: 12px; right: 12px; z-index: 2;
    width: 34px; height: 34px; border-radius: 50%;
    background: var(--canvas, #F7F6F3);
    border: 0.5px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    color: var(--ink); cursor: pointer;
    transition: background 0.15s ease, transform 0.15s ease;
  }
  .alb-close:hover { background: var(--ghost); transform: scale(1.08); }
  html[data-theme="dark"] .alb-close {
    background: rgba(240,238,233,0.08); color: var(--paper);
  }
  .alb-img-wrap {
    flex: 1; overflow: auto; padding: 20px;
    /* custom scrollbar */
    scrollbar-width: thin; scrollbar-color: var(--border) transparent;
  }
  .alb-img { display: block; width: 100%; height: auto; border-radius: var(--radius-md, 10px); }
  .alb-caption {
    padding: 10px 20px 14px;
    font-size: 10px; font-weight: 600; letter-spacing: 0.08em;
    text-transform: uppercase; color: var(--subtle); font-family: var(--font-mono);
    border-top: 0.5px solid var(--border);
  }
  @keyframes albFadeIn  { from { opacity: 0; } to { opacity: 1; } }
  @keyframes albSlideUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }

  /* ─── Case Study: What We Got Wrong ─── */
  .csm-label-wrong {
    color: var(--amber) !important;
    border-color: rgba(184,114,20,0.2) !important;
  }
  html[data-theme="dark"] .csm-label-wrong { color: var(--amber) !important; }

  /* ─── Case Study: Share Button ─── */
  .csm-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 11px;
    font-weight: 600;
    color: var(--subtle);
    background: transparent;
    border: 0.5px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 4px 10px;
    cursor: pointer;
    font-family: var(--font-sans);
    letter-spacing: 0.03em;
    transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  }
  .csm-share-btn:hover { color: var(--ink); background: var(--ghost); border-color: var(--border-mid); }

  /* ─── Case Study: Body Layout (sidebar + main) ─── */
  .csm-body-layout {
    display: grid;
    grid-template-columns: 160px 1fr;
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 32px;
    gap: 0;
    align-items: start;
  }
  @media (max-width: 900px) {
    .csm-body-layout { grid-template-columns: 1fr; padding: 0 20px; }
    .csm-sidebar { display: none; }
  }

  /* ─── Case Study: Sidebar TOC ─── */
  .csm-sidebar {
    position: sticky;
    top: 72px;
    padding-top: 80px;
    padding-right: 32px;
  }
  .csm-toc { display: flex; flex-direction: column; gap: 4px; }
  .csm-toc-link {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--subtle);
    text-decoration: none;
    font-family: var(--font-mono);
    padding: 5px 8px;
    border-radius: var(--radius-sm);
    transition: color 0.2s ease, background 0.2s ease;
    display: block;
  }
  .csm-toc-link:hover { color: var(--ink); background: var(--canvas); }

  /* ─── Override csm-wrap inside layout ─── */
  .csm-body-layout .csm-wrap { max-width: 720px; padding: 0; }

  /* ─── Case Study: Meta bar ─── */
  .csm-meta-bar {
    display: grid;
    grid-template-columns: 1fr 1fr 2fr;
    gap: 0;
    border: 0.5px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--white);
    margin-top: 4px;
    box-shadow: var(--shadow-sm);
  }
  .csm-meta-item {
    padding: 20px 22px;
    border-right: 0.5px solid var(--border);
    transition: background 0.2s ease;
  }
  .csm-meta-item:hover { background: var(--canvas); }
  .csm-meta-item:last-child { border-right: none; }
  .csm-meta-label {
    font-size: 9px; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--subtle); font-family: var(--font-mono);
    margin-bottom: 6px;
  }
  .csm-meta-value { font-size: 12px; color: var(--ink); line-height: 1.5; font-weight: 500; }
  @media (max-width: 640px) {
    .csm-meta-bar { grid-template-columns: 1fr 1fr; }
    .csm-meta-wide { grid-column: span 2; border-right: none; border-top: 0.5px solid var(--border); }
  }
  html[data-theme="dark"] .csm-meta-bar { background: rgba(240,238,233,0.04); }

  /* ─── Case Study: Research Insights Grid ─── */
  .csm-insights-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  @media (max-width: 640px) { .csm-insights-grid { grid-template-columns: 1fr; } }
  .csm-insight-card {
    background: var(--canvas);
    border: 0.5px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
    overflow: hidden;
  }
  .csm-insight-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 1.5px;
    background: linear-gradient(90deg, var(--blueprint), transparent);
    opacity: 0; transition: opacity 0.25s ease;
  }
  .csm-insight-card:hover {
    border-color: var(--border-mid);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }
  .csm-insight-card:hover::before { opacity: 1; }
  html[data-theme="dark"] .csm-insight-card { background: rgba(240,238,233,0.04); }
  .csm-insight-label {
    font-size: 9px; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--blueprint); font-family: var(--font-mono);
    margin-bottom: 8px;
  }
  .csm-insight-body { font-size: 12px; color: var(--charcoal); line-height: 1.7; }

  /* ─── Case Study: Decision Points ─── */
  .csm-decisions { display: flex; flex-direction: column; gap: 12px; }
  .csm-decision {
    border: 0.5px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--white);
    transition: box-shadow 0.2s ease;
  }
  .csm-decision:hover { box-shadow: var(--shadow-md); }
  .csm-decision-header {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 18px;
    background: var(--canvas);
    border-bottom: 0.5px solid var(--border);
  }
  .csm-decision-num {
    width: 22px; height: 22px; border-radius: 50%;
    background: var(--ink); color: var(--white);
    font-size: 10px; font-weight: 700; font-family: var(--font-mono);
    display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  }
  .csm-decision-title { font-size: 13px; font-weight: 600; color: var(--ink); letter-spacing: -0.01em; }
  .csm-decision-body { padding: 16px 18px; display: flex; flex-direction: column; gap: 10px; }
  .csm-decision-why, .csm-decision-tradeoff { font-size: 12.5px; color: var(--mid); line-height: 1.72; }
  .csm-decision-tag {
    display: inline-block;
    font-size: 9px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
    font-family: var(--font-mono); color: var(--teal); background: var(--teal-bg);
    border-radius: var(--radius-xs); padding: 2px 6px; margin-right: 8px; vertical-align: middle;
  }
  .csm-decision-tag-tradeoff { color: var(--amber); background: var(--amber-bg); }
  html[data-theme="dark"] .csm-decision { background: rgba(240,238,233,0.03); }
  html[data-theme="dark"] .csm-decision-header { background: rgba(240,238,233,0.04); }

  /* ─── Case Study: Outcomes highlight ─── */
  .csm-section-outcomes {
    background: linear-gradient(135deg, var(--teal-bg) 0%, rgba(234,179,8,0.06) 100%);
    border-radius: var(--radius-xl);
    padding: 32px !important;
    border: 0.5px solid rgba(234,179,8,0.2) !important;
    border-bottom: 0.5px solid rgba(234,179,8,0.2) !important;
    margin-bottom: 1px;
    position: relative; overflow: hidden;
  }
  .csm-section-outcomes::after {
    content: '';
    position: absolute; top: 0; left: 0;
    width: 3px; height: 100%;
    background: var(--teal);
    border-radius: 2px 0 0 2px;
  }
  .csm-section-outcomes .csm-section-label { color: var(--teal) !important; }
  .csm-section-outcomes .csm-prose { color: var(--charcoal) !important; font-size: 14.5px !important; }

  /* ─── Case Study: Lessons highlight ─── */
  .csm-section-lessons {
    border-left: 3px solid var(--ink);
    padding-left: 24px;
    background: none;
  }

  /* ─── Case Study: Ethics section ─── */
  .csm-section-ethics {
    background: linear-gradient(135deg, var(--blueprint-bg) 0%, rgba(21,88,160,0.05) 100%);
    border-radius: var(--radius-xl);
    padding: 28px 32px !important;
    border: 0.5px solid rgba(21,88,160,0.18) !important;
    border-bottom: 0.5px solid rgba(21,88,160,0.18) !important;
    position: relative; overflow: hidden;
  }
  .csm-section-ethics::after {
    content: '';
    position: absolute; top: 0; left: 0;
    width: 3px; height: 100%;
    background: var(--blueprint);
    border-radius: 2px 0 0 2px;
  }
  .csm-section-ethics .csm-section-label { color: var(--blueprint) !important; }
  .csm-section-ethics .csm-prose { color: var(--charcoal) !important; }

  /* ═══════════════════════════════════════════════════════════════════════
     PRESENTATION MODE — Big Four Portfolio Walkthrough
     Light/dark switchable · 3 slides per case · Sidebar nav dots
     ═══════════════════════════════════════════════════════════════════════ */

  /* ── CSS custom properties per theme ── */
  .pm-overlay {
    /* dark defaults */
    --pm-bg:           #0D0D0D;
    --pm-surface:      #161616;
    --pm-surface2:     #1E1E1E;
    --pm-border:       rgba(255,255,255,0.07);
    --pm-border-mid:   rgba(255,255,255,0.12);
    --pm-ink:          #F2F0EB;
    --pm-mid:          rgba(242,240,235,0.55);
    --pm-mist:         rgba(242,240,235,0.30);
    --pm-ghost:        rgba(242,240,235,0.06);
    --pm-accent:       #EAB308;
    --pm-accent-bg:    rgba(234,179,8,0.10);
    --pm-accent-border:rgba(234,179,8,0.22);
    --pm-kpi-val:      #FFFFFF;
    --pm-badge-bg:     rgba(255,255,255,0.06);
    --pm-badge-border: rgba(255,255,255,0.10);
    --pm-progress-bg:  rgba(255,255,255,0.08);
    --pm-progress-bar: #EAB308;
    --pm-btn-bg:       rgba(255,255,255,0.05);
    --pm-btn-border:   rgba(255,255,255,0.12);
    --pm-btn-hover-bg: rgba(255,255,255,0.10);
    --pm-dot-default:  rgba(255,255,255,0.15);
    --pm-dot-past:     rgba(255,255,255,0.40);
    --pm-dot-active:   #EAB308;
    --pm-sidebar-bg:   rgba(255,255,255,0.03);
    --pm-sidebar-bdr:  rgba(255,255,255,0.06);
    --pm-reflection-bg:rgba(234,179,8,0.07);
    --pm-reflection-bdr:rgba(234,179,8,0.18);
    --pm-challenge-bg: rgba(255,255,255,0.04);
    --pm-challenge-bdr:rgba(255,255,255,0.08);
    --pm-process-n:    rgba(255,255,255,0.12);
    --pm-outcome-bdr:  rgba(255,255,255,0.07);
    --pm-quote-bdr:    rgba(255,255,255,0.18);
    --pm-quote-icon:   rgba(255,255,255,0.15);
    --pm-pillar-bg:    rgba(255,255,255,0.04);
    --pm-pillar-bdr:   rgba(255,255,255,0.08);
    --pm-cta-card-bg:  rgba(255,255,255,0.04);
    --pm-cta-card-bdr: rgba(255,255,255,0.08);
  }
  /* ── Light theme overrides ── */
  .pm-overlay[data-pm-theme="light"] {
    --pm-bg:           #F5F3EE;
    --pm-surface:      #FFFFFF;
    --pm-surface2:     #F0EDE6;
    --pm-border:       rgba(0,0,0,0.07);
    --pm-border-mid:   rgba(0,0,0,0.12);
    --pm-ink:          #1F2937;
    --pm-mid:          rgba(31,41,55,0.60);
    --pm-mist:         rgba(31,41,55,0.35);
    --pm-ghost:        rgba(0,0,0,0.03);
    --pm-accent:       #B45309;
    --pm-accent-bg:    rgba(180,83,9,0.08);
    --pm-accent-border:rgba(180,83,9,0.20);
    --pm-kpi-val:      #0F172A;
    --pm-badge-bg:     rgba(0,0,0,0.04);
    --pm-badge-border: rgba(0,0,0,0.09);
    --pm-progress-bg:  rgba(0,0,0,0.08);
    --pm-progress-bar: #B45309;
    --pm-btn-bg:       rgba(0,0,0,0.04);
    --pm-btn-border:   rgba(0,0,0,0.12);
    --pm-btn-hover-bg: rgba(0,0,0,0.08);
    --pm-dot-default:  rgba(0,0,0,0.15);
    --pm-dot-past:     rgba(0,0,0,0.35);
    --pm-dot-active:   #B45309;
    --pm-sidebar-bg:   rgba(0,0,0,0.025);
    --pm-sidebar-bdr:  rgba(0,0,0,0.07);
    --pm-reflection-bg:rgba(180,83,9,0.06);
    --pm-reflection-bdr:rgba(180,83,9,0.16);
    --pm-challenge-bg: rgba(0,0,0,0.03);
    --pm-challenge-bdr:rgba(0,0,0,0.07);
    --pm-process-n:    rgba(0,0,0,0.10);
    --pm-outcome-bdr:  rgba(0,0,0,0.06);
    --pm-quote-bdr:    rgba(0,0,0,0.15);
    --pm-quote-icon:   rgba(0,0,0,0.12);
    --pm-pillar-bg:    rgba(0,0,0,0.03);
    --pm-pillar-bdr:   rgba(0,0,0,0.07);
    --pm-cta-card-bg:  #FFFFFF;
    --pm-cta-card-bdr: rgba(0,0,0,0.08);
  }

  /* ── Overlay shell ── */
  .pm-overlay {
    position: fixed;
    inset: 0;
    z-index: 2147483647;
    background: var(--pm-bg);
    display: flex;
    flex-direction: column;
    font-family: var(--font-sans);
    color: var(--pm-ink);
    transition: background 0.25s ease, color 0.25s ease;
  }

  /* ── Top bar ── */
  .pm-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 32px;
    height: 50px;
    border-bottom: 0.5px solid var(--pm-border);
    flex-shrink: 0;
    gap: 16px;
  }
  .pm-bar-left  { display: flex; align-items: center; gap: 12px; }
  .pm-bar-right { display: flex; align-items: center; gap: 12px; }
  .pm-logo-mark {
    width: 22px; height: 22px;
    background: var(--pm-accent);
    border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    color: #fff;
  }
  .pm-logo-mark svg { width: 12px; height: 12px; }
  .pm-bar-name {
    font-size: 11px; font-weight: 700; letter-spacing: 0.09em;
    color: var(--pm-ink); opacity: 0.6;
  }
  .pm-section-label {
    font-size: 10px; color: var(--pm-mist);
    font-family: var(--font-mono); letter-spacing: 0.04em;
    margin-top: 1px;
  }
  .pm-counter {
    font-size: 11px; color: var(--pm-mist);
    font-family: var(--font-mono);
  }
  /* Light/dark toggle button */
  .pm-theme-btn {
    width: 30px; height: 30px;
    background: var(--pm-btn-bg);
    border: 0.5px solid var(--pm-btn-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: var(--pm-mist);
    transition: background 0.2s ease, color 0.2s ease;
  }
  .pm-theme-btn:hover { background: var(--pm-btn-hover-bg); color: var(--pm-ink); }
  .pm-overlay[data-pm-theme="dark"]  .pm-icon-moon { display: none; }
  .pm-overlay[data-pm-theme="light"] .pm-icon-sun  { display: none; }
  .pm-close-btn {
    width: 30px; height: 30px;
    background: var(--pm-btn-bg);
    border: 0.5px solid var(--pm-btn-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: var(--pm-mist);
    transition: background 0.2s ease, color 0.2s ease;
  }
  .pm-close-btn:hover { background: rgba(220,38,38,0.12); border-color: rgba(220,38,38,0.2); color: #EF4444; }

  /* ── Progress bar ── */
  .pm-progress-track {
    height: 2px;
    background: var(--pm-progress-bg);
    flex-shrink: 0;
  }
  .pm-progress-bar {
    height: 100%;
    background: var(--pm-progress-bar);
    transition: width 0.4s cubic-bezier(0.22,1,0.36,1), background 0.25s ease;
    border-radius: 0 2px 2px 0;
  }

  /* ── Body: sidebar + content ── */
  .pm-body {
    flex: 1;
    display: flex;
    overflow: hidden;
  }

  /* ── Sidebar ── */
  .pm-sidebar {
    width: 64px;
    flex-shrink: 0;
    background: var(--pm-sidebar-bg);
    border-right: 0.5px solid var(--pm-sidebar-bdr);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 28px 0 20px;
    gap: 20px;
    transition: background 0.25s ease;
  }
  .pm-dots {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    flex: 1;
  }
  .pm-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--pm-dot-default);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: background 0.2s ease, transform 0.2s ease, width 0.2s ease;
    flex-shrink: 0;
  }
  .pm-dot:hover   { background: var(--pm-dot-past); transform: scale(1.4); }
  .pm-dot-past    { background: var(--pm-dot-past) !important; }
  .pm-dot-active  {
    background: var(--pm-dot-active) !important;
    width: 6px; height: 14px;
    border-radius: 3px;
    transform: none;
  }
  .pm-sidebar-hint {
    font-size: 8px;
    color: var(--pm-mist);
    font-family: var(--font-mono);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
    letter-spacing: 0.06em;
    opacity: 0.5;
    line-height: 1.4;
  }

  /* ── Slide content area ── */
  .pm-content {
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 40px 52px;
    overflow-y: auto;
    overflow-x: hidden;
  }
  @media (max-width: 700px) {
    .pm-content { padding: 24px 20px; }
    .pm-sidebar { width: 36px; }
    .pm-bar { padding: 0 16px; }
    .pm-controls { padding: 12px 16px; }
  }

  /* ── Bottom controls ── */
  .pm-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 32px;
    border-top: 0.5px solid var(--pm-border);
    flex-shrink: 0;
    gap: 16px;
  }
  .pm-controls-hint {
    font-size: 10px;
    color: var(--pm-mist);
    font-family: var(--font-mono);
    letter-spacing: 0.04em;
  }
  .pm-prev, .pm-next {
    font-size: 12px;
    font-weight: 600;
    color: var(--pm-mid);
    background: var(--pm-btn-bg);
    border: 0.5px solid var(--pm-btn-border);
    border-radius: var(--radius-sm);
    padding: 8px 18px;
    cursor: pointer;
    font-family: var(--font-sans);
    letter-spacing: 0.03em;
    display: flex; align-items: center; gap: 6px;
    transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  }
  .pm-prev:hover, .pm-next:hover {
    color: var(--pm-ink);
    border-color: var(--pm-border-mid);
    background: var(--pm-btn-hover-bg);
  }
  .pm-prev:disabled { pointer-events: none; }

  /* ══════════════════════════════
     SLIDE COMPONENTS
  ══════════════════════════════ */
  .pm-slide {
    max-width: 820px;
    width: 100%;
  }

  /* ── Intro slide ── */
  .pm-intro { text-align: center; padding-top: 16px; }
  .pm-intro-eyebrow {
    display: inline-block;
    font-size: 10px; font-weight: 700; letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--pm-accent);
    background: var(--pm-accent-bg);
    border: 0.5px solid var(--pm-accent-border);
    border-radius: 99px;
    padding: 4px 14px;
    margin-bottom: 24px;
    font-family: var(--font-mono);
  }
  .pm-intro-name {
    font-size: clamp(2.4rem, 5.5vw, 4.2rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 0.95;
    color: var(--pm-ink);
    margin: 0 0 10px;
  }
  .pm-intro-role {
    font-size: 14px;
    color: var(--pm-mist);
    margin: 0 0 36px;
    font-family: var(--font-mono);
    letter-spacing: 0.02em;
  }
  .pm-intro-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 32px;
    flex-wrap: wrap;
    border: 0.5px solid var(--pm-border);
    border-radius: var(--radius-lg);
    background: var(--pm-ghost);
    padding: 20px 0;
  }
  .pm-stat { padding: 0 28px; text-align: center; }
  .pm-stat-div { width: 0.5px; height: 36px; background: var(--pm-border); }
  .pm-stat-val {
    font-size: 1.9rem; font-weight: 700; color: var(--pm-kpi-val);
    letter-spacing: -0.04em; line-height: 1; margin-bottom: 4px;
  }
  .pm-stat-lbl {
    font-size: 9px; color: var(--pm-mist);
    font-family: var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase;
  }
  .pm-intro-divider {
    height: 0.5px; background: var(--pm-border); margin: 28px 0;
  }
  .pm-intro-pillars {
    display: flex; gap: 12px; justify-content: center; margin-bottom: 28px; flex-wrap: wrap;
  }
  .pm-pillar {
    background: var(--pm-pillar-bg);
    border: 0.5px solid var(--pm-pillar-bdr);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    text-align: center;
    flex: 1; min-width: 120px;
  }
  .pm-pillar-icon {
    font-size: 18px; color: var(--pm-accent);
    margin-bottom: 8px; line-height: 1;
  }
  .pm-pillar-label {
    font-size: 11px; font-weight: 600; color: var(--pm-mid);
    line-height: 1.4; letter-spacing: 0.01em;
  }
  .pm-intro-belief {
    font-size: 14px;
    color: var(--pm-mid);
    line-height: 1.75;
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
    padding: 20px;
    background: var(--pm-ghost);
    border: 0.5px solid var(--pm-border);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--pm-accent);
  }

  /* ── Case slide common ── */
  .pm-case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 8px;
  }
  .pm-case-meta {
    display: flex; align-items: center; gap: 10px;
  }
  .pm-case-num {
    font-size: 9px; font-weight: 700; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--pm-mist);
    font-family: var(--font-mono);
  }
  .pm-chip-label {
    font-size: 9px; font-weight: 700; letter-spacing: 0.08em;
    text-transform: uppercase;
    background: var(--pm-accent-bg);
    color: var(--pm-accent);
    border: 0.5px solid var(--pm-accent-border);
    border-radius: 99px;
    padding: 2px 10px;
    font-family: var(--font-mono);
  }
  .pm-case-roi-badge {
    font-size: 11px; font-weight: 700;
    color: var(--pm-accent);
    background: var(--pm-accent-bg);
    border: 0.5px solid var(--pm-accent-border);
    border-radius: var(--radius-sm);
    padding: 4px 10px;
    font-family: var(--font-mono);
    letter-spacing: 0.03em;
  }
  .pm-case-title {
    font-size: clamp(1.5rem, 3.2vw, 2.2rem);
    font-weight: 700; letter-spacing: -0.035em;
    line-height: 1.1; color: var(--pm-ink);
    margin: 0 0 8px;
  }
  .pm-case-title-sm {
    font-size: clamp(1.1rem, 2.2vw, 1.45rem);
    margin-bottom: 18px;
  }
  .pm-case-tagline {
    font-size: 14px; color: var(--pm-mid);
    line-height: 1.65; margin: 0 0 22px;
  }

  /* KPI row */
  .pm-kpi-row {
    display: flex; gap: 0;
    margin-bottom: 22px;
    background: var(--pm-ghost);
    border: 0.5px solid var(--pm-border);
    border-radius: var(--radius-md);
    overflow: hidden;
  }
  .pm-kpi {
    flex: 1;
    padding: 14px 16px;
    border-right: 0.5px solid var(--pm-border);
  }
  .pm-kpi:last-child { border-right: none; }
  .pm-kpi-val {
    font-size: 1.4rem; font-weight: 700;
    color: var(--pm-kpi-val); letter-spacing: -0.03em;
    line-height: 1; margin-bottom: 3px;
  }
  .pm-kpi-lbl {
    font-size: 9px; color: var(--pm-mist);
    font-family: var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase;
  }

  /* Context / challenge grid */
  .pm-section-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  @media (max-width: 700px) { .pm-section-grid { grid-template-columns: 1fr; } }
  .pm-context-block {
    background: var(--pm-ghost);
    border: 0.5px solid var(--pm-border);
    border-radius: var(--radius-md);
    padding: 16px 18px;
  }
  .pm-challenge-block {
    background: var(--pm-challenge-bg);
    border-color: var(--pm-challenge-bdr);
    border-left: 3px solid var(--pm-accent);
  }
  .pm-block-label {
    font-size: 9px; font-weight: 700; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--pm-mist);
    font-family: var(--font-mono); margin-bottom: 8px;
  }
  .pm-challenge-label { color: var(--pm-accent) !important; }
  .pm-block-body {
    font-size: 12.5px; color: var(--pm-mid);
    line-height: 1.7; margin: 0;
  }

  /* Approach slide: process steps */
  .pm-approach-label, .pm-outcomes-label {
    font-size: 9px; font-weight: 700; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--pm-accent);
    font-family: var(--font-mono);
  }
  .pm-process-list {
    display: flex; flex-direction: column; gap: 10px;
    margin-bottom: 18px;
  }
  .pm-process-step {
    display: flex; gap: 14px; align-items: flex-start;
    background: var(--pm-ghost);
    border: 0.5px solid var(--pm-border);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    transition: border-color 0.2s ease;
  }
  .pm-process-step:hover { border-color: var(--pm-border-mid); }
  .pm-process-n {
    font-size: 9px; font-weight: 700;
    color: var(--pm-accent);
    background: var(--pm-accent-bg);
    border: 0.5px solid var(--pm-accent-border);
    border-radius: var(--radius-xs);
    padding: 2px 6px;
    font-family: var(--font-mono);
    flex-shrink: 0;
    margin-top: 1px;
  }
  .pm-process-body { flex: 1; }
  .pm-process-title {
    font-size: 12px; font-weight: 700;
    color: var(--pm-ink); margin-bottom: 3px;
    letter-spacing: -0.01em;
  }
  .pm-process-desc {
    font-size: 11.5px; color: var(--pm-mid); line-height: 1.6;
  }
  .pm-constraints-row { margin-top: 4px; }
  .pm-constraints { display: flex; flex-wrap: wrap; gap: 8px; }
  .pm-constraint {
    display: flex; align-items: center; gap: 6px;
    background: var(--pm-badge-bg);
    border: 0.5px solid var(--pm-badge-border);
    border-radius: 99px;
    padding: 4px 10px;
    font-size: 11px; color: var(--pm-mid);
  }
  .pm-constraint-icon { font-size: 12px; }
  .pm-constraint-lbl { font-size: 10px; font-weight: 600; }

  /* Outcome slide */
  .pm-outcomes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 10px;
    margin-bottom: 18px;
  }
  .pm-outcome {
    background: var(--pm-ghost);
    border: 0.5px solid var(--pm-outcome-bdr);
    border-radius: var(--radius-md);
    padding: 14px 16px;
  }
  .pm-outcome-metric {
    font-size: 1.5rem; font-weight: 700;
    color: var(--pm-kpi-val); letter-spacing: -0.04em;
    line-height: 1; margin-bottom: 3px;
  }
  .pm-outcome-label {
    font-size: 10px; font-weight: 700;
    color: var(--pm-mid); margin-bottom: 4px;
  }
  .pm-outcome-context {
    font-size: 10px; color: var(--pm-mist);
    line-height: 1.5; font-family: var(--font-mono);
  }
  .pm-outcome-bottom-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 10px;
  }
  @media (max-width: 700px) { .pm-outcome-bottom-grid { grid-template-columns: 1fr; } }
  .pm-stakeholder, .pm-reflection {
    background: var(--pm-ghost);
    border: 0.5px solid var(--pm-border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
  }
  .pm-reflection {
    background: var(--pm-reflection-bg);
    border-color: var(--pm-reflection-bdr);
    border-left: 3px solid var(--pm-accent);
  }
  .pm-reflection-label { color: var(--pm-accent) !important; }

  /* Quote */
  .pm-quote {
    display: flex; gap: 14px; align-items: flex-start;
    border: 0.5px solid var(--pm-quote-bdr);
    background: var(--pm-ghost);
    border-radius: var(--radius-md);
    padding: 16px 18px;
    margin-bottom: 14px;
  }
  .pm-quote-mark { color: var(--pm-quote-icon); flex-shrink: 0; margin-top: 2px; }
  .pm-quote-text {
    font-size: 13px; font-weight: 500; color: var(--pm-ink);
    line-height: 1.6; letter-spacing: -0.01em;
    font-style: italic; margin-bottom: 8px;
  }
  .pm-quote-attr {
    font-size: 10px; color: var(--pm-mist);
    font-family: var(--font-mono);
  }

  /* CTA slide */
  .pm-cta { text-align: center; padding-top: 16px; }
  .pm-cta-eyebrow {
    font-size: 10px; font-weight: 700; letter-spacing: 0.12em;
    text-transform: uppercase; color: var(--pm-accent);
    font-family: var(--font-mono); margin-bottom: 16px;
  }
  .pm-cta-title {
    font-size: clamp(1.7rem, 3.8vw, 2.8rem);
    font-weight: 700; letter-spacing: -0.04em;
    line-height: 1.05; color: var(--pm-ink);
    margin: 0 0 14px;
  }
  .pm-cta-sub {
    font-size: 13px; color: var(--pm-mist); margin: 0 0 32px; line-height: 1.6;
  }
  .pm-cta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
    margin-bottom: 28px;
    text-align: left;
  }
  .pm-cta-card {
    background: var(--pm-cta-card-bg);
    border: 0.5px solid var(--pm-cta-card-bdr);
    border-radius: var(--radius-md);
    padding: 14px 16px;
  }
  .pm-cta-card-label {
    font-size: 9px; font-weight: 700; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--pm-mist);
    font-family: var(--font-mono); margin-bottom: 4px;
  }
  .pm-cta-card-val {
    font-size: 12px; font-weight: 600; color: var(--pm-ink);
    word-break: break-all;
  }
  .pm-cta-avail {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 12px; color: var(--pm-mist);
    background: var(--pm-ghost);
    border: 0.5px solid var(--pm-border);
    border-radius: 99px;
    padding: 6px 16px;
  }

  /* ─── About section: currently thinking ─── */
  html[data-theme="dark"] #about div[style*="background:var(--canvas)"] { background: var(--ghost) !important; }

/* ─── Constraints grid ───────────────────────────────────────────────────────── */
.csm-constraints-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
  margin-top: 16px;
}
.csm-constraint-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--ghost, #F7F6F3);
  border: 0.5px solid var(--border, rgba(15,15,15,0.1));
  border-radius: 10px;
  padding: 16px 18px;
}
.csm-constraint-icon {
  font-size: 22px;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}
.csm-constraint-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink, #0F0F0F);
  font-family: var(--font-mono, monospace);
  margin-bottom: 5px;
}
.csm-constraint-detail {
  font-size: 13px;
  color: var(--muted, #6B6B68);
  line-height: 1.65;
}
html[data-theme="dark"] .csm-constraint-card {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.08);
}

/* ─── Outcomes grid ──────────────────────────────────────────────────────────── */
.csm-outcomes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 16px;
}
.csm-outcome-card {
  background: var(--ghost, #F7F6F3);
  border: 0.5px solid var(--border, rgba(15,15,15,0.1));
  border-radius: 10px;
  padding: 20px 18px;
}
.csm-outcome-metric {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--ink, #0F0F0F);
  line-height: 1;
  margin-bottom: 6px;
  font-family: var(--font-mono, monospace);
}
.csm-outcome-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink, #0F0F0F);
  margin-bottom: 8px;
}
.csm-outcome-context {
  font-size: 12px;
  color: var(--muted, #6B6B68);
  line-height: 1.6;
}
html[data-theme="dark"] .csm-outcome-card {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.08);
}
html[data-theme="dark"] .csm-outcome-metric {
  color: #F0EEE9;
}
html[data-theme="dark"] .csm-outcome-label {
  color: rgba(240,238,233,0.7);
}