/* ============================================
   Dual-Facet Layer System — Full Theme Variants
   ============================================
   Two visual environments from one design system:

   SYSTEMS LAYER — structured, technical, precise
     Slate/blue palette, Inter typography, sharp geometry,
     tight spacing, grid patterns, monochrome surfaces

   HUMAN LAYER — warm, literary, organic
     Cream/amber palette, Cormorant Garamond, soft edges,
     generous whitespace, textured surfaces, serif body

   Applied via data-layer="systems|human|both|gateway"
   on <body>. Overrides design-system.css tokens.
   ============================================ */


/* ============================================
   § 1  DESIGN TOKENS — Layer Overrides
   ============================================ */

[data-layer="systems"] {
  /* Color */
  --layer-accent: #2563EB;
  --layer-accent-hover: #1D4ED8;
  --layer-accent-light: #EFF6FF;
  --layer-accent-subtle: rgba(37, 99, 235, 0.04);
  --layer-accent-rgb: 37, 99, 235;

  /* Typography */
  --layer-heading-font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --layer-body-font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Surfaces */
  --layer-bg: #F8FAFC;
  --layer-bg-alt: #F1F5F9;
  --layer-card-bg: #FFFFFF;
  --layer-card-border: rgba(226, 232, 240, 0.8);
  --layer-card-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --layer-card-shadow-hover: 0 10px 25px rgba(15, 23, 42, 0.08), 0 4px 10px rgba(15, 23, 42, 0.04);
  --layer-card-radius: 12px;

  /* Geometry */
  --layer-section-radius: 16px;
  --layer-border-width: 1px;
  --layer-border-style: solid;

  /* Spacing rhythm */
  --layer-section-gap: 3rem;
  --layer-content-max: 52rem;
}

[data-layer="human"] {
  /* Color */
  --layer-accent: #B45309;
  --layer-accent-hover: #92400E;
  --layer-accent-light: #FFFBEB;
  --layer-accent-subtle: rgba(180, 83, 9, 0.03);
  --layer-accent-rgb: 180, 83, 9;

  /* Typography */
  --layer-heading-font: 'Cormorant Garamond', Georgia, serif;
  --layer-body-font: 'Source Serif Pro', Georgia, serif;

  /* Surfaces */
  --layer-bg: #FEFDFB;
  --layer-bg-alt: #FAF9F6;
  --layer-card-bg: rgba(255, 253, 250, 0.9);
  --layer-card-border: rgba(214, 211, 209, 0.5);
  --layer-card-shadow: 0 2px 8px rgba(28, 25, 23, 0.04);
  --layer-card-shadow-hover: 0 12px 32px rgba(28, 25, 23, 0.07);
  --layer-card-radius: 20px;

  /* Geometry */
  --layer-section-radius: 24px;
  --layer-border-width: 1px;
  --layer-border-style: solid;

  /* Spacing rhythm — more breathing room */
  --layer-section-gap: 4rem;
  --layer-content-max: 44rem;
}

[data-layer="both"],
[data-layer="gateway"] {
  --layer-accent: var(--accent-color);
  --layer-accent-hover: var(--accent-hover);
  --layer-accent-light: var(--accent-light);
  --layer-accent-subtle: rgba(37, 99, 235, 0.03);
  --layer-accent-rgb: 37, 99, 235;
  --layer-heading-font: var(--font-display);
  --layer-body-font: var(--font-body);
  --layer-bg: var(--background-color);
  --layer-bg-alt: #F5F5F4;
  --layer-card-bg: #FFFFFF;
  --layer-card-border: rgba(22, 19, 17, 0.08);
  --layer-card-shadow: 0 4px 12px rgba(22, 19, 17, 0.05);
  --layer-card-shadow-hover: 0 16px 36px rgba(22, 19, 17, 0.08);
  --layer-card-radius: 22px;
  --layer-section-radius: 22px;
  --layer-section-gap: 3.5rem;
  --layer-content-max: 48rem;
}


/* ============================================
   § 1b  DARK MODE TOKEN OVERRIDES
   ============================================ */

[data-theme="dark"][data-layer="systems"] {
  --layer-accent-light: rgba(37, 99, 235, 0.1);
  --layer-accent-subtle: rgba(37, 99, 235, 0.04);
  --layer-bg: #0B1120;
  --layer-bg-alt: #111827;
  --layer-card-bg: #1E293B;
  --layer-card-border: rgba(148, 163, 184, 0.1);
  --layer-card-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  --layer-card-shadow-hover: 0 12px 30px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"][data-layer="human"] {
  --layer-accent: #F59E0B;
  --layer-accent-hover: #D97706;
  --layer-accent-light: rgba(245, 158, 11, 0.08);
  --layer-accent-subtle: rgba(245, 158, 11, 0.03);
  --layer-accent-rgb: 245, 158, 11;
  --layer-bg: #1A1614;
  --layer-bg-alt: #231F1C;
  --layer-card-bg: rgba(35, 31, 28, 0.95);
  --layer-card-border: rgba(168, 162, 158, 0.1);
  --layer-card-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  --layer-card-shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.35);
}


/* ============================================
   § 2  PAGE CANVAS — Background & Body
   ============================================
   These override beautifuljekyll.css page-col.
   Must use !important to win specificity.
   ============================================ */

/* --- Systems: precision engineering canvas --- */
[data-layer="systems"] {
  background-color: #F0F4F8 !important;
}

[data-layer="systems"] .intro-header,
[data-layer="systems"] .container-md {
  position: relative;
}

/* Circuit-board grid — precision dot matrix with cross-hairs */
[data-layer="systems"]::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.22;
  background-image:
    radial-gradient(circle, #64748B 0.6px, transparent 0.6px),
    linear-gradient(to right, rgba(100, 116, 139, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(100, 116, 139, 0.04) 1px, transparent 1px);
  background-size: 20px 20px, 80px 80px, 80px 80px;
  background-position: 0 0, 0 0, 0 0;
}

/* Precision gradient — cool blue light from top-left (like a monitor glow) */
[data-layer="systems"]::after {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60vh;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse at 10% 0%, rgba(37, 99, 235, 0.06), transparent 50%),
    radial-gradient(ellipse at 90% 20%, rgba(96, 165, 250, 0.03), transparent 40%),
    linear-gradient(180deg, rgba(241, 245, 249, 0.5) 0%, transparent 100%);
}

/* Systems page header — frosted glass on slate */
[data-layer="systems"] .intro-header.no-img {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* --- Human: warm paper, handmade feel --- */
[data-layer="human"] {
  background-color: #FAF8F3 !important;
}

/* Paper texture — organic noise-like layered gradients */
[data-layer="human"]::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse at 10% 15%, rgba(180, 83, 9, 0.05), transparent 35%),
    radial-gradient(ellipse at 90% 85%, rgba(217, 119, 6, 0.04), transparent 35%),
    radial-gradient(ellipse at 50% 50%, rgba(254, 243, 199, 0.18), transparent 55%),
    radial-gradient(ellipse at 30% 70%, rgba(251, 191, 36, 0.03), transparent 30%),
    radial-gradient(ellipse at 70% 20%, rgba(245, 158, 11, 0.02), transparent 30%);
}

/* Warm light from above — like sunlight through a window */
[data-layer="human"]::after {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 50vh;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse at 40% 0%, rgba(254, 243, 199, 0.35), transparent 50%),
    radial-gradient(ellipse at 70% 10%, rgba(251, 191, 36, 0.08), transparent 40%),
    linear-gradient(180deg, rgba(253, 248, 240, 0.6) 0%, transparent 100%);
}

/* --- Gateway / Both: neutral warm-white --- */
[data-layer="gateway"],
[data-layer="both"] {
  background-color: #FAFAF8 !important;
}

/* --- Dark mode canvas --- */
[data-theme="dark"][data-layer="systems"] {
  background-color: #0B1120 !important;
}

[data-theme="dark"][data-layer="systems"]::before {
  opacity: 0.12;
  background-image: radial-gradient(circle, #334155 0.5px, transparent 0.5px);
}

[data-theme="dark"][data-layer="systems"]::after {
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.04) 0%, transparent 100%);
}

[data-theme="dark"][data-layer="human"] {
  background-color: #1A1614 !important;
}

[data-theme="dark"][data-layer="human"]::before {
  background:
    radial-gradient(ellipse at 15% 10%, rgba(245, 158, 11, 0.04), transparent 45%),
    radial-gradient(ellipse at 85% 80%, rgba(217, 119, 6, 0.03), transparent 40%);
}

[data-theme="dark"][data-layer="human"]::after {
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.03) 0%, transparent 100%);
}

[data-theme="dark"][data-layer="gateway"],
[data-theme="dark"][data-layer="both"] {
  background-color: #1C1917 !important;
}


/* ============================================
   § 3  TYPOGRAPHY — Full Stack Per Layer
   ============================================ */

/* --- Systems: all Inter, tight, technical --- */
[data-layer="systems"] {
  font-family: var(--layer-body-font);
  letter-spacing: -0.01em;
}

[data-layer="systems"] h1,
[data-layer="systems"] h2,
[data-layer="systems"] h3,
[data-layer="systems"] h4,
[data-layer="systems"] h5,
[data-layer="systems"] h6,
[data-layer="systems"] .page-heading,
[data-layer="systems"] .section-heading,
[data-layer="systems"] .post-title {
  font-family: var(--layer-heading-font);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

[data-layer="systems"] h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); }
[data-layer="systems"] h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
[data-layer="systems"] h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }

[data-layer="systems"] p,
[data-layer="systems"] li,
[data-layer="systems"] article {
  font-family: var(--layer-body-font);
  font-size: 0.95rem;
  line-height: 1.7;
}

[data-layer="systems"] .page-subheading,
[data-layer="systems"] .post-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

/* --- Human: literary, generous, warm serif --- */
[data-layer="human"] {
  font-family: var(--layer-body-font);
  letter-spacing: 0;
}

[data-layer="human"] h1,
[data-layer="human"] h2,
[data-layer="human"] h3,
[data-layer="human"] h4,
[data-layer="human"] h5,
[data-layer="human"] h6,
[data-layer="human"] .page-heading,
[data-layer="human"] .section-heading,
[data-layer="human"] .post-title {
  font-family: var(--layer-heading-font);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.2;
}

[data-layer="human"] h1 { font-size: clamp(2.6rem, 6vw, 4rem); }
[data-layer="human"] h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
[data-layer="human"] h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }

[data-layer="human"] p,
[data-layer="human"] li {
  font-family: var(--layer-body-font);
  font-size: 1.05rem;
  line-height: 1.85;
}

[data-layer="human"] .page-subheading {
  font-family: var(--layer-body-font);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-secondary);
  letter-spacing: 0;
}

[data-layer="human"] blockquote {
  font-family: var(--layer-heading-font);
  font-size: 1.3rem;
  font-style: italic;
  line-height: 1.6;
  border-left: 3px solid var(--layer-accent);
  padding-left: 1.5rem;
  color: var(--text-secondary);
}


/* ============================================
   § 4  PAGE HEADER — Layer-Specific Treatment
   ============================================
   Rich, immersive page headers that fill the
   empty real estate above content with decorative
   patterns (Systems) or warm textures (Human).
   ============================================ */

/* --- Shared header decoration container --- */
.header-decor {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.header-decor__shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.intro-header.no-img {
  position: relative;
  overflow: hidden;
}

.intro-header.no-img .container-md {
  position: relative;
  z-index: 1;
}

/* --- Systems: blueprint-style immersive header --- */
[data-layer="systems"] .intro-header.no-img {
  border-bottom: 2px solid var(--layer-accent);
  padding: 3.5rem 0 2.5rem;
  margin-bottom: 2rem;
  background:
    linear-gradient(180deg, #EFF6FF 0%, #F8FAFC 60%, transparent 100%);
}

/* Geometric grid overlay for Systems headers */
[data-layer="systems"] .intro-header.no-img .header-decor__shape--1 {
  opacity: 0.07;
  top: -20%;
  right: -5%;
  width: 320px;
  height: 320px;
  border-radius: 0;
  border: 2px solid #2563EB;
  transform: rotate(45deg);
}

[data-layer="systems"] .intro-header.no-img .header-decor__shape--2 {
  opacity: 0.05;
  bottom: -30%;
  left: -3%;
  width: 240px;
  height: 240px;
  border-radius: 0;
  border: 2px solid #2563EB;
  transform: rotate(15deg);
}

[data-layer="systems"] .intro-header.no-img .header-decor__shape--3 {
  opacity: 0.12;
  top: 15%;
  right: 12%;
  width: 8px;
  height: 8px;
  background: #2563EB;
  box-shadow:
    40px 20px 0 #2563EB,
    80px 0px 0 #2563EB,
    120px 30px 0 #2563EB,
    20px 50px 0 #2563EB,
    60px 45px 0 #2563EB,
    100px 55px 0 #2563EB,
    140px 10px 0 #2563EB,
    -20px 30px 0 #2563EB;
}

[data-layer="systems"] .intro-header .page-heading h1 {
  font-family: var(--layer-heading-font);
  font-weight: 800;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  letter-spacing: -0.04em;
  color: var(--text-color);
}

[data-layer="systems"] .intro-header .page-subheading {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  font-weight: 400;
}

/* --- Layer indicator in headers --- */
[data-layer="systems"] .intro-header .layer-indicator,
[data-layer="human"] .intro-header .layer-indicator {
  margin-bottom: 0.75rem;
}

/* --- Human: warm, literary immersive header --- */
[data-layer="human"] .intro-header.no-img {
  padding: 4rem 0 3rem;
  margin-bottom: 2.5rem;
  border-bottom: none;
  position: relative;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(254, 243, 199, 0.4), transparent 50%),
    radial-gradient(ellipse at 80% 60%, rgba(180, 83, 9, 0.05), transparent 40%),
    linear-gradient(180deg, #FDF8F0 0%, #FBF9F4 60%, transparent 100%);
}

/* Warm organic shapes for Human headers */
[data-layer="human"] .intro-header.no-img .header-decor__shape--1 {
  opacity: 0.12;
  top: -15%;
  right: 5%;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(180, 83, 9, 0.15), transparent 70%);
  border-radius: 50%;
}

[data-layer="human"] .intro-header.no-img .header-decor__shape--2 {
  opacity: 0.08;
  bottom: -25%;
  left: -5%;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(254, 243, 199, 0.6), transparent 65%);
  border-radius: 50%;
}

[data-layer="human"] .intro-header.no-img .header-decor__shape--3 {
  opacity: 0.15;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 1px;
  height: 60%;
  background: linear-gradient(180deg, transparent, rgba(180, 83, 9, 0.15), transparent);
  border-radius: 0;
}

[data-layer="human"] .intro-header.no-img::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  border-radius: 2px;
  background: var(--layer-accent);
  opacity: 0.5;
  z-index: 1;
}

[data-layer="human"] .intro-header .page-heading h1 {
  font-family: var(--layer-heading-font);
  font-weight: 500;
  font-size: clamp(2.6rem, 5.5vw, 4rem);
  letter-spacing: -0.02em;
  color: var(--text-color);
}

[data-layer="human"] .intro-header .page-subheading {
  font-family: var(--layer-body-font);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

/* --- Both / Gateway: clean neutral --- */
[data-layer="both"] .intro-header.no-img,
[data-layer="gateway"] .intro-header.no-img {
  padding: 3rem 0 2rem;
  background: linear-gradient(180deg, rgba(245, 245, 244, 0.5) 0%, transparent 100%);
}

/* --- Dark mode header treatments --- */
[data-theme="dark"][data-layer="systems"] .intro-header.no-img {
  background:
    linear-gradient(180deg, rgba(15, 23, 42, 0.8) 0%, transparent 100%);
}

[data-theme="dark"][data-layer="systems"] .intro-header.no-img .header-decor__shape--1,
[data-theme="dark"][data-layer="systems"] .intro-header.no-img .header-decor__shape--2 {
  border-color: #60A5FA;
}

[data-theme="dark"][data-layer="systems"] .intro-header.no-img .header-decor__shape--3 {
  background: #60A5FA;
  box-shadow:
    40px 20px 0 #60A5FA,
    80px 0px 0 #60A5FA,
    120px 30px 0 #60A5FA,
    20px 50px 0 #60A5FA,
    60px 45px 0 #60A5FA,
    100px 55px 0 #60A5FA,
    140px 10px 0 #60A5FA,
    -20px 30px 0 #60A5FA;
}

[data-theme="dark"][data-layer="human"] .intro-header.no-img {
  background:
    radial-gradient(ellipse at 20% 30%, rgba(245, 158, 11, 0.06), transparent 50%),
    linear-gradient(180deg, rgba(26, 22, 20, 0.8) 0%, transparent 100%);
}

[data-theme="dark"][data-layer="human"] .intro-header.no-img .header-decor__shape--1 {
  background: radial-gradient(circle, rgba(245, 158, 11, 0.1), transparent 70%);
}


/* ============================================
   § 5  CARDS — Different Aesthetics
   ============================================ */

/* Systems: crisp white cards on slate background */
[data-layer="systems"] .card,
[data-layer="systems"] .card-lift,
[data-layer="systems"] .signature-card,
[data-layer="systems"] .outcome-card,
[data-layer="systems"] .case-study-card,
[data-layer="systems"] .monetization-card,
[data-layer="systems"] .engagement-card,
[data-layer="systems"] .cross-card,
[data-layer="systems"] .testimonial-card {
  background: #FFFFFF;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--layer-card-radius);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

[data-layer="systems"] .card:hover,
[data-layer="systems"] .card-lift:hover,
[data-layer="systems"] .signature-card:hover,
[data-layer="systems"] .outcome-card:hover,
[data-layer="systems"] .case-study-card:hover,
[data-layer="systems"] .monetization-card:hover,
[data-layer="systems"] .engagement-card:hover,
[data-layer="systems"] .cross-card:hover,
[data-layer="systems"] .testimonial-card:hover {
  box-shadow: var(--layer-card-shadow-hover);
  border-color: rgba(37, 99, 235, 0.15);
  transform: translateY(-2px);
}

/* Systems: card kicker/label styling */
[data-layer="systems"] .kicker,
[data-layer="systems"] .signature-label,
[data-layer="systems"] .case-study-kicker,
[data-layer="systems"] .monetization-label,
[data-layer="systems"] .engagement-label,
[data-layer="systems"] .section-kicker {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--layer-accent);
  border: none;
  background: none;
  padding: 0;
}

/* Systems: card heading */
[data-layer="systems"] .signature-card h3,
[data-layer="systems"] .outcome-card h3,
[data-layer="systems"] .case-study-card h3,
[data-layer="systems"] .monetization-card h3 {
  font-family: var(--layer-heading-font);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

/* Systems: card body text */
[data-layer="systems"] .signature-card p,
[data-layer="systems"] .outcome-card p,
[data-layer="systems"] .case-study-card p,
[data-layer="systems"] .monetization-card p {
  font-family: var(--layer-body-font);
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

/* Human: warm parchment cards on cream background */
[data-layer="human"] .card,
[data-layer="human"] .card-lift,
[data-layer="human"] .signature-card,
[data-layer="human"] .outcome-card,
[data-layer="human"] .case-study-card,
[data-layer="human"] .monetization-card,
[data-layer="human"] .engagement-card,
[data-layer="human"] .cross-card,
[data-layer="human"] .testimonial-card {
  background: rgba(255, 253, 248, 0.85);
  border: 1px solid rgba(214, 211, 209, 0.4);
  border-radius: var(--layer-card-radius);
  box-shadow: 0 2px 10px rgba(28, 25, 23, 0.04);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

[data-layer="human"] .card:hover,
[data-layer="human"] .card-lift:hover,
[data-layer="human"] .signature-card:hover,
[data-layer="human"] .outcome-card:hover,
[data-layer="human"] .case-study-card:hover,
[data-layer="human"] .monetization-card:hover,
[data-layer="human"] .engagement-card:hover,
[data-layer="human"] .cross-card:hover,
[data-layer="human"] .testimonial-card:hover {
  box-shadow: var(--layer-card-shadow-hover);
  border-color: rgba(180, 83, 9, 0.12);
  transform: translateY(-4px);
}

/* Human: card kicker — smaller, italic, refined */
[data-layer="human"] .kicker,
[data-layer="human"] .signature-label,
[data-layer="human"] .case-study-kicker,
[data-layer="human"] .monetization-label,
[data-layer="human"] .engagement-label,
[data-layer="human"] .section-kicker {
  font-family: var(--layer-body-font);
  font-size: 0.82rem;
  font-weight: 400;
  font-style: italic;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--layer-accent);
}

/* Human: card headings — larger, elegant */
[data-layer="human"] .signature-card h3,
[data-layer="human"] .outcome-card h3,
[data-layer="human"] .case-study-card h3,
[data-layer="human"] .monetization-card h3 {
  font-family: var(--layer-heading-font);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

/* Human: card body — larger, more readable */
[data-layer="human"] .signature-card p,
[data-layer="human"] .outcome-card p,
[data-layer="human"] .case-study-card p,
[data-layer="human"] .monetization-card p {
  font-family: var(--layer-body-font);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-secondary);
}


/* ============================================
   § 6  BUTTONS — Layer Variants
   ============================================ */

/* Systems: sharp, tight, technical buttons */
[data-layer="systems"] .btn-primary,
[data-layer="systems"] .hero-primary {
  background: var(--layer-accent);
  border-radius: 8px;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  text-transform: none;
  box-shadow: 0 2px 8px rgba(var(--layer-accent-rgb), 0.2);
}

[data-layer="systems"] .btn-primary:hover,
[data-layer="systems"] .hero-primary:hover {
  background: var(--layer-accent-hover);
  box-shadow: 0 6px 16px rgba(var(--layer-accent-rgb), 0.25);
}

[data-layer="systems"] .btn-secondary,
[data-layer="systems"] .hero-secondary {
  border-radius: 8px;
  border: 1px solid var(--layer-card-border);
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.85rem;
  background: var(--layer-card-bg);
  color: var(--text-color) !important;
}

[data-layer="systems"] .hero-secondary:hover {
  border-color: var(--layer-accent);
  color: var(--layer-accent) !important;
  background: var(--layer-accent-light);
}

/* Human: rounded, warm, inviting buttons */
[data-layer="human"] .btn-primary,
[data-layer="human"] .hero-primary {
  background: var(--layer-accent);
  border-radius: 999px;
  font-family: var(--layer-body-font);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  box-shadow: 0 4px 14px rgba(var(--layer-accent-rgb), 0.18);
}

[data-layer="human"] .btn-primary:hover,
[data-layer="human"] .hero-primary:hover {
  background: var(--layer-accent-hover);
  box-shadow: 0 8px 24px rgba(var(--layer-accent-rgb), 0.22);
}

[data-layer="human"] .btn-secondary,
[data-layer="human"] .hero-secondary {
  border-radius: 999px;
  border: 1px solid rgba(var(--layer-accent-rgb), 0.2);
  font-family: var(--layer-body-font);
  font-weight: 500;
  font-size: 0.95rem;
  background: rgba(var(--layer-accent-rgb), 0.04);
  color: var(--layer-accent) !important;
}

[data-layer="human"] .hero-secondary:hover {
  background: rgba(var(--layer-accent-rgb), 0.08);
  border-color: rgba(var(--layer-accent-rgb), 0.3);
}


/* ============================================
   § 7  LINKS — Layer Accents
   ============================================ */

[data-layer="systems"] a:not(.btn):not(.hero-primary):not(.hero-secondary):not(.nav-link):not(.navbar-brand):not(.dropdown-item):not(.footer-nav-group a):not(.testimonial-avatar):not(.gateway-panel__link) {
  color: var(--layer-accent);
}

[data-layer="systems"] a:not(.btn):not(.hero-primary):not(.hero-secondary):not(.nav-link):not(.navbar-brand):not(.dropdown-item):not(.gateway-panel__link):hover {
  color: var(--layer-accent-hover);
}

[data-layer="human"] a:not(.btn):not(.hero-primary):not(.hero-secondary):not(.nav-link):not(.navbar-brand):not(.dropdown-item):not(.footer-nav-group a):not(.testimonial-avatar):not(.gateway-panel__link) {
  color: var(--layer-accent);
}

[data-layer="human"] a:not(.btn):not(.hero-primary):not(.hero-secondary):not(.nav-link):not(.navbar-brand):not(.dropdown-item):not(.gateway-panel__link):hover {
  color: var(--layer-accent-hover);
}


/* ============================================
   § 8  SECTION SPACING & DIVIDERS
   ============================================ */

/* Systems: tighter rhythm, horizontal rules */
[data-layer="systems"] .section-shell,
[data-layer="systems"] .section {
  margin-bottom: var(--layer-section-gap);
}

[data-layer="systems"] .section-header {
  margin-bottom: 1.5rem;
}

/* Human: more air, centered decorative breaks */
[data-layer="human"] .section-shell,
[data-layer="human"] .section {
  margin-bottom: var(--layer-section-gap);
}

[data-layer="human"] .section-header {
  margin-bottom: 2.2rem;
}

/* Human: section heading alignment — centered on narrow content */
[data-layer="human"] .section-header {
  text-align: center;
}

[data-layer="human"] .section-heading {
  max-width: var(--layer-content-max);
  margin-left: auto;
  margin-right: auto;
}


/* ============================================
   § 9  NAVBAR — Layer Tinting
   ============================================ */

/* Systems pages: navbar tinted cool */
[data-layer="systems"] .navbar-custom {
  background: rgba(241, 245, 249, 0.85) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
}

[data-layer="systems"] .navbar-custom .nav-link.active {
  color: var(--layer-accent) !important;
}

/* Human pages: navbar tinted warm */
[data-layer="human"] .navbar-custom {
  background: rgba(251, 249, 244, 0.85) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(214, 211, 209, 0.4);
}

[data-layer="human"] .navbar-custom .nav-link.active {
  color: var(--layer-accent) !important;
}

/* Nav layer indicator dots and labels */
.nav-layer-label {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.nav-layer-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.nav-layer-dot--systems { background: #2563EB; }
.nav-layer-dot--human { background: #B45309; }

/* Active layer highlight in nav */
[data-layer="systems"] .nav-group--systems > .nav-link,
[data-layer="systems"] .nav-group--systems > .dropdown-toggle {
  color: #2563EB !important;
  font-weight: 600;
}

[data-layer="human"] .nav-group--human > .nav-link,
[data-layer="human"] .nav-group--human > .dropdown-toggle {
  color: #B45309 !important;
  font-weight: 600;
}

/* Dropdown layer tinting — colored top border */
.nav-group--systems .dropdown-menu {
  border-top: 2px solid #2563EB;
}

.nav-group--human .dropdown-menu {
  border-top: 2px solid #B45309;
}


/* ============================================
   § 10  FOOTER — Layer Labels
   ============================================ */

.footer-nav-label--systems { color: #2563EB !important; }
.footer-nav-label--human { color: #B45309 !important; }

/* Systems footer: tighter, monospace-forward */
[data-layer="systems"] .footer-brand-tagline {
  font-family: var(--font-ui);
  font-style: normal;
  font-size: 0.85rem;
}

/* Human footer: literary, serif */
[data-layer="human"] .footer-brand-tagline {
  font-family: var(--layer-body-font);
  font-style: italic;
  font-size: 0.92rem;
}


/* ============================================
   § 11  LAYER INDICATOR BADGE
   ============================================
   Magazine section label — appears in page
   headers and on content cards.
   ============================================ */

.layer-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.28rem 0.7rem 0.28rem 0.55rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 1;
  transition: opacity var(--transition-base);
}

.layer-indicator::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.layer-indicator--systems {
  background: rgba(37, 99, 235, 0.06);
  border: 1px solid rgba(37, 99, 235, 0.12);
  color: #2563EB;
}
.layer-indicator--systems::before { background: #2563EB; }

.layer-indicator--human {
  background: rgba(180, 83, 9, 0.06);
  border: 1px solid rgba(180, 83, 9, 0.12);
  color: #B45309;
}
.layer-indicator--human::before { background: #B45309; }

[data-theme="dark"] .layer-indicator--systems {
  background: rgba(96, 165, 250, 0.08);
  border-color: rgba(96, 165, 250, 0.18);
  color: #60A5FA;
}
[data-theme="dark"] .layer-indicator--systems::before { background: #60A5FA; }

[data-theme="dark"] .layer-indicator--human {
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.18);
  color: #F59E0B;
}
[data-theme="dark"] .layer-indicator--human::before { background: #F59E0B; }


/* ============================================
   § 12  CONTENT AREA — Max Width & Alignment
   ============================================ */

/* Systems: slightly wider, utilitarian */
[data-layer="systems"] .post-content,
[data-layer="systems"] .page-content {
  max-width: var(--layer-content-max);
}

/* Human: narrower column, more immersive reading */
[data-layer="human"] .post-content,
[data-layer="human"] .page-content {
  max-width: var(--layer-content-max);
}


/* ============================================
   § 13  CODE BLOCKS — Layer Specific
   ============================================ */

[data-layer="systems"] pre,
[data-layer="systems"] code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  border-radius: 8px;
}

[data-layer="human"] pre,
[data-layer="human"] code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  border-radius: 12px;
}


/* ============================================
   § 14  TESTIMONIALS — Layer Specific
   ============================================ */

[data-layer="systems"] .testimonial-quality {
  border-color: rgba(37, 99, 235, 0.16);
  background: rgba(37, 99, 235, 0.04);
  color: #2563EB;
}

[data-layer="human"] .testimonial-quality {
  border-color: rgba(180, 83, 9, 0.16);
  background: rgba(180, 83, 9, 0.04);
  color: #B45309;
}


/* ============================================
   § 15  GATEWAY / HOMEPAGE HERO
   ============================================ */

.gateway-hero {
  width: min(100%, 1320px);
  margin: 2rem auto 3rem;
  padding: 0 1.5rem;
}

.gateway-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.gateway-panel {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  padding: 2.5rem 2.5rem 2rem;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gateway-panel:hover {
  transform: translateY(-3px);
}

/* Systems panel — dark, structured */
.gateway-panel--systems {
  background: linear-gradient(160deg, #0F172A 0%, #1E293B 100%);
  color: #F8FAFC;
  border: 1px solid rgba(96, 165, 250, 0.12);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25);
}

.gateway-panel--systems:hover {
  box-shadow: 0 24px 56px rgba(15, 23, 42, 0.32);
  border-color: rgba(96, 165, 250, 0.2);
}

.gateway-panel--systems::before {
  content: "";
  position: absolute;
  top: -6rem;
  right: -4rem;
  width: 20rem;
  height: 20rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15), transparent 70%);
  pointer-events: none;
}

.gateway-panel--systems::after {
  content: "";
  position: absolute;
  bottom: -5rem;
  left: -3rem;
  width: 14rem;
  height: 14rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.08), transparent 70%);
  pointer-events: none;
}

/* Human panel — warm, textured */
.gateway-panel--human {
  background: linear-gradient(160deg, #FFFBEB 0%, #FEF3C7 40%, #FAFAF8 100%);
  color: #1C1917;
  border: 1px solid rgba(180, 83, 9, 0.1);
  box-shadow: 0 20px 50px rgba(180, 83, 9, 0.08);
}

.gateway-panel--human:hover {
  box-shadow: 0 24px 56px rgba(180, 83, 9, 0.12);
  border-color: rgba(180, 83, 9, 0.18);
}

.gateway-panel--human::before {
  content: "";
  position: absolute;
  bottom: -5rem;
  right: -3rem;
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(180, 83, 9, 0.1), transparent 70%);
  pointer-events: none;
}

/* Panel content */
.gateway-panel__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.gateway-panel--systems .gateway-panel__kicker {
  color: rgba(96, 165, 250, 0.8);
}

.gateway-panel--human .gateway-panel__kicker {
  font-family: 'Source Serif Pro', Georgia, serif;
  font-style: italic;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--accent-warm);
}

.gateway-panel__kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.gateway-panel--systems .gateway-panel__kicker::before {
  background: #3B82F6;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.gateway-panel--human .gateway-panel__kicker::before {
  background: #B45309;
  box-shadow: 0 0 10px rgba(180, 83, 9, 0.3);
}

.gateway-panel__title {
  margin: 0 0 0.8rem;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.gateway-panel--systems .gateway-panel__title {
  font-family: 'Inter', sans-serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: #F8FAFC;
}

.gateway-panel--human .gateway-panel__title {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 500;
  color: #1C1917;
  letter-spacing: -0.02em;
}

.gateway-panel__desc {
  margin: 0 0 1.5rem;
  max-width: 32rem;
}

.gateway-panel--systems .gateway-panel__desc {
  color: rgba(248, 250, 252, 0.72);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  line-height: 1.65;
}

.gateway-panel--human .gateway-panel__desc {
  color: rgba(28, 25, 23, 0.72);
  font-family: 'Source Serif Pro', Georgia, serif;
  font-style: italic;
  font-size: 1rem;
  line-height: 1.8;
}

.gateway-panel__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.gateway-panel__link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.5rem 1rem;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none !important;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.gateway-panel__link:hover {
  transform: translateY(-1px);
}

/* Systems panel buttons — sharp */
.gateway-panel--systems .gateway-panel__link {
  border-radius: 8px;
}

.gateway-panel--systems .gateway-panel__link--primary {
  background: #2563EB;
  color: #fff !important;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.gateway-panel--systems .gateway-panel__link--primary:hover {
  background: #1D4ED8;
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.35);
}

.gateway-panel--systems .gateway-panel__link--secondary {
  background: rgba(248, 250, 252, 0.06);
  border: 1px solid rgba(248, 250, 252, 0.15);
  color: rgba(248, 250, 252, 0.85) !important;
}

.gateway-panel--systems .gateway-panel__link--secondary:hover {
  background: rgba(248, 250, 252, 0.1);
  border-color: rgba(248, 250, 252, 0.25);
  color: #F8FAFC !important;
}

/* Human panel buttons — rounded */
.gateway-panel--human .gateway-panel__link {
  border-radius: 999px;
}

.gateway-panel--human .gateway-panel__link--primary {
  background: #B45309;
  color: #fff !important;
  box-shadow: 0 4px 14px rgba(180, 83, 9, 0.18);
}

.gateway-panel--human .gateway-panel__link--primary:hover {
  background: #92400E;
  box-shadow: 0 8px 22px rgba(180, 83, 9, 0.25);
}

.gateway-panel--human .gateway-panel__link--secondary {
  background: rgba(180, 83, 9, 0.05);
  border: 1px solid rgba(180, 83, 9, 0.15);
  color: #92400E !important;
}

.gateway-panel--human .gateway-panel__link--secondary:hover {
  background: rgba(180, 83, 9, 0.09);
  border-color: rgba(180, 83, 9, 0.25);
}

/* Meta tags */
.gateway-panel__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.2rem;
}

.gateway-panel__meta-tag {
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.gateway-panel--systems .gateway-panel__meta-tag {
  background: rgba(96, 165, 250, 0.08);
  border: 1px solid rgba(96, 165, 250, 0.12);
  color: rgba(148, 163, 184, 0.9);
}

.gateway-panel--human .gateway-panel__meta-tag {
  background: rgba(180, 83, 9, 0.06);
  border: 1px solid rgba(180, 83, 9, 0.1);
  color: rgba(120, 113, 108, 0.9);
  font-family: 'Source Serif Pro', Georgia, serif;
  font-style: italic;
  text-transform: none;
  letter-spacing: 0.02em;
  font-size: 0.72rem;
}

/* Scroll prompt */
.gateway-scroll {
  text-align: center;
  margin: 0 0 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-light);
}

.gateway-scroll::before { content: "——  "; }
.gateway-scroll::after { content: "  ——"; }


/* ============================================
   § 16  UNIFIED CONTENT STREAM
   ============================================ */

.stream-section {
  width: min(100%, 1320px);
  margin: 0 auto 3rem;
  padding: 0 1.5rem;
}

.stream-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.15rem;
  margin-top: 1.5rem;
}

.stream-card {
  position: relative;
  padding: 1.5rem;
  border-radius: 22px;
  border: 1px solid rgba(22, 19, 17, 0.08);
  background: linear-gradient(180deg, rgba(255,255,255,0.9), rgba(255,255,255,0.78));
  box-shadow: 0 8px 22px rgba(22, 19, 17, 0.05);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
  text-decoration: none !important;
  color: inherit;
}

.stream-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(22, 19, 17, 0.08);
}

.stream-card__layer {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.stream-card__layer::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
}

.stream-card__layer--systems { color: #2563EB; }
.stream-card__layer--systems::before { background: #2563EB; }
.stream-card__layer--human { color: #B45309; }
.stream-card__layer--human::before { background: #B45309; }

.stream-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin: 0;
}

.stream-card__title a {
  color: var(--text-color) !important;
  text-decoration: none;
}

.stream-card__title a:hover {
  color: var(--layer-accent, var(--accent-color)) !important;
}

.stream-card__subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-style: italic;
  margin: 0;
  line-height: 1.5;
}

.stream-card__date {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-light);
  letter-spacing: 0.06em;
  margin-top: auto;
}

.stream-card--systems { border-top: 2px solid #2563EB; }
.stream-card--human { border-top: 2px solid #B45309; }
.stream-card--technical { border-top: 2px solid #059669; }

[data-theme="dark"] .stream-card {
  background: rgba(28, 25, 23, 0.92);
  border-color: rgba(231, 229, 228, 0.08);
}


/* ============================================
   § 17  RESPONSIVE
   ============================================ */

@media (max-width: 900px) {
  .gateway-panels {
    grid-template-columns: 1fr;
  }

  .gateway-panel {
    min-height: auto;
    padding: 2rem;
  }

  .stream-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 580px) {
  .gateway-hero {
    padding: 0 1rem;
    margin-top: 1rem;
  }

  .gateway-panel {
    padding: 1.5rem;
    border-radius: 22px;
  }

  .gateway-panel__title {
    font-size: 1.6rem !important;
  }

  .stream-grid {
    grid-template-columns: 1fr;
  }

  .stream-section {
    padding: 0 1rem;
  }

  /* Layer typography scales down gracefully */
  [data-layer="human"] h1 { font-size: 2rem; }
  [data-layer="systems"] h1 { font-size: 1.8rem; }
}

@media (prefers-reduced-motion: reduce) {
  .gateway-panel,
  .stream-card {
    transition: none;
  }

  .gateway-panel:hover,
  .stream-card:hover {
    transform: none;
  }
}


/* ============================================
   § 18  GLOBAL COMPONENT OVERRIDES
   ============================================
   Catches ALL shared components from other CSS
   files (shared-components, premium-theme,
   writing-hub, projects, cv, navbar-theme, etc.)
   that have hardcoded values.

   Loaded LAST in base.html so these win.
   ============================================ */

/* --- Shared component surfaces --- */
[data-layer="systems"] .card-surface,
[data-layer="systems"] .card-surface--hero,
[data-layer="systems"] .card-surface--compact,
[data-layer="systems"] .writing-intro,
[data-layer="systems"] .writing-topic-card,
[data-layer="systems"] .writing-item,
[data-layer="systems"] .post-preview,
[data-layer="systems"] .kun-card,
[data-layer="systems"] .astra-card,
[data-layer="systems"] .project-card,
[data-layer="systems"] .blog-post {
  background: #FFFFFF !important;
  border: 1px solid rgba(226, 232, 240, 0.9) !important;
  border-radius: 12px !important;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04) !important;
}

[data-layer="systems"] .card-surface:hover,
[data-layer="systems"] .writing-topic-card:hover,
[data-layer="systems"] .writing-item:hover,
[data-layer="systems"] .post-preview:hover,
[data-layer="systems"] .project-card:hover {
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.08), 0 4px 10px rgba(15, 23, 42, 0.04) !important;
  border-color: rgba(37, 99, 235, 0.15) !important;
  transform: translateY(-2px);
}

[data-layer="human"] .card-surface,
[data-layer="human"] .card-surface--hero,
[data-layer="human"] .card-surface--compact,
[data-layer="human"] .writing-intro,
[data-layer="human"] .writing-topic-card,
[data-layer="human"] .writing-item,
[data-layer="human"] .post-preview,
[data-layer="human"] .kun-card,
[data-layer="human"] .astra-card,
[data-layer="human"] .project-card,
[data-layer="human"] .blog-post {
  background: rgba(255, 253, 248, 0.85) !important;
  border: 1px solid rgba(214, 211, 209, 0.4) !important;
  border-radius: 20px !important;
  box-shadow: 0 2px 10px rgba(28, 25, 23, 0.04) !important;
}

[data-layer="human"] .card-surface:hover,
[data-layer="human"] .writing-topic-card:hover,
[data-layer="human"] .writing-item:hover,
[data-layer="human"] .post-preview:hover,
[data-layer="human"] .project-card:hover {
  box-shadow: 0 12px 32px rgba(28, 25, 23, 0.07) !important;
  border-color: rgba(180, 83, 9, 0.12) !important;
  transform: translateY(-4px);
}

/* --- All headings --- */
[data-layer="systems"] .section-heading,
[data-layer="systems"] .writing-heading,
[data-layer="systems"] .creative-heading,
[data-layer="systems"] .cv-name,
[data-layer="systems"] .cv-entry-role,
[data-layer="systems"] .writing-item-title,
[data-layer="systems"] .project-title,
[data-layer="systems"] .kun-title,
[data-layer="systems"] .astra-title {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
  font-weight: 700 !important;
  letter-spacing: -0.03em !important;
}

[data-layer="human"] .section-heading,
[data-layer="human"] .writing-heading,
[data-layer="human"] .creative-heading,
[data-layer="human"] .cv-name,
[data-layer="human"] .cv-entry-role,
[data-layer="human"] .writing-item-title,
[data-layer="human"] .project-title,
[data-layer="human"] .kun-title,
[data-layer="human"] .astra-title {
  font-family: 'Cormorant Garamond', Georgia, serif !important;
  font-weight: 600 !important;
  letter-spacing: -0.015em !important;
}

/* --- All kickers / section labels --- */
[data-layer="systems"] .kicker,
[data-layer="systems"] .section-kicker,
[data-layer="systems"] .creative-kicker,
[data-layer="systems"] .exec-kicker,
[data-layer="systems"] .content-type-badge {
  font-family: var(--font-mono) !important;
  font-size: 0.68rem !important;
  font-weight: 600 !important;
  font-style: normal !important;
  letter-spacing: 0.12em !important;
  text-transform: uppercase !important;
  color: #2563EB !important;
}

[data-layer="human"] .kicker,
[data-layer="human"] .section-kicker,
[data-layer="human"] .creative-kicker,
[data-layer="human"] .exec-kicker,
[data-layer="human"] .content-type-badge {
  font-family: 'Source Serif Pro', Georgia, serif !important;
  font-size: 0.82rem !important;
  font-weight: 400 !important;
  font-style: italic !important;
  letter-spacing: 0.02em !important;
  text-transform: none !important;
  color: #B45309 !important;
}

/* --- All accent-colored elements --- */
[data-layer="systems"] .section-lead,
[data-layer="systems"] .exec-lead,
[data-layer="systems"] .cv-summary,
[data-layer="systems"] .kun-quote,
[data-layer="systems"] .blog-post blockquote {
  border-left-color: #2563EB !important;
}

[data-layer="human"] .section-lead,
[data-layer="human"] .exec-lead,
[data-layer="human"] .cv-summary,
[data-layer="human"] .kun-quote,
[data-layer="human"] .blog-post blockquote {
  border-left-color: #B45309 !important;
}

/* --- Metric/stat values --- */
[data-layer="systems"] .metric-value,
[data-layer="systems"] .exec-proof-metric,
[data-layer="systems"] .cv-headline,
[data-layer="systems"] .authority-metric {
  color: #2563EB !important;
  font-family: 'Inter', sans-serif !important;
  font-weight: 800 !important;
}

[data-layer="human"] .metric-value,
[data-layer="human"] .exec-proof-metric,
[data-layer="human"] .cv-headline,
[data-layer="human"] .authority-metric {
  color: #B45309 !important;
  font-family: 'Cormorant Garamond', Georgia, serif !important;
  font-weight: 600 !important;
}

/* --- Pagination --- */
[data-layer="systems"] .pagination .page-link {
  background: #FFFFFF;
  border-color: rgba(226, 232, 240, 0.9);
  border-radius: 8px;
}

[data-layer="systems"] .pagination .page-link.active,
[data-layer="systems"] .pagination .page-item.active .page-link {
  background: #2563EB;
  border-color: #2563EB;
}

[data-layer="human"] .pagination .page-link {
  background: rgba(255, 253, 248, 0.85);
  border-color: rgba(214, 211, 209, 0.4);
  border-radius: 999px;
}

[data-layer="human"] .pagination .page-link.active,
[data-layer="human"] .pagination .page-item.active .page-link {
  background: #B45309;
  border-color: #B45309;
}

/* --- Navbar override for all layers --- */
[data-layer="systems"] .navbar-custom .navbar-toggler:focus {
  outline-color: rgba(37, 99, 235, 0.4);
}

[data-layer="human"] .navbar-custom .navbar-toggler:focus {
  outline-color: rgba(180, 83, 9, 0.4);
}

/* --- CV page badges --- */
[data-layer="systems"] .cv-badge,
[data-layer="systems"] .cv-tag {
  background: rgba(37, 99, 235, 0.06);
  border-color: rgba(37, 99, 235, 0.12);
  color: #2563EB;
}

/* --- Writing hub filter tabs --- */
[data-layer="systems"] .writing-filter.active,
[data-layer="both"] .writing-filter.active {
  background: #2563EB;
  color: #fff;
}

[data-layer="human"] .writing-filter.active {
  background: #B45309;
  color: #fff;
}

/* --- Content type badges on cards --- */
[data-layer="systems"] .badge-newsletter,
[data-layer="systems"] .badge-essay,
[data-layer="systems"] .badge-technical {
  border-top-color: #2563EB;
}

[data-layer="human"] .badge-newsletter,
[data-layer="human"] .badge-essay,
[data-layer="human"] .badge-reflection,
[data-layer="human"] .badge-poetry {
  border-top-color: #B45309;
}

/* ============================================
   § 19  ONE-OF-A-KIND — Unique Layer Identity
   ============================================
   Details that make each layer feel like an
   entirely different site, not just a color swap.
   ============================================ */

/* --- Selection color per layer --- */
[data-layer="systems"] ::selection {
  background: rgba(37, 99, 235, 0.18);
  color: #0F172A;
}

[data-layer="human"] ::selection {
  background: rgba(180, 83, 9, 0.15);
  color: #1C1917;
}

/* --- Horizontal rules — Systems: precise line. Human: ornamental. --- */
[data-layer="systems"] hr,
[data-layer="systems"] hr.small {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, #CBD5E1 20%, #94A3B8 50%, #CBD5E1 80%, transparent);
  margin: 2rem 0;
}

[data-layer="human"] hr,
[data-layer="human"] hr.small {
  border: none;
  height: auto;
  background: none;
  text-align: center;
  margin: 2.5rem 0;
}

[data-layer="human"] hr::after,
[data-layer="human"] hr.small::after {
  content: "◆ ◇ ◆";
  display: block;
  font-size: 0.5rem;
  letter-spacing: 0.5em;
  color: rgba(180, 83, 9, 0.3);
}

/* --- Scrollbar per layer (webkit) --- */
[data-layer="systems"]::-webkit-scrollbar {
  width: 6px;
}
[data-layer="systems"]::-webkit-scrollbar-track {
  background: #E2E8F0;
}
[data-layer="systems"]::-webkit-scrollbar-thumb {
  background: #94A3B8;
  border-radius: 3px;
}
[data-layer="systems"]::-webkit-scrollbar-thumb:hover {
  background: #2563EB;
}

[data-layer="human"]::-webkit-scrollbar {
  width: 8px;
}
[data-layer="human"]::-webkit-scrollbar-track {
  background: #F5F0E8;
}
[data-layer="human"]::-webkit-scrollbar-thumb {
  background: #D6D3D1;
  border-radius: 999px;
}
[data-layer="human"]::-webkit-scrollbar-thumb:hover {
  background: #B45309;
}

/* --- Systems: terminal-style code blocks --- */
[data-layer="systems"] pre {
  position: relative;
  background: #0F172A !important;
  border: 1px solid rgba(96, 165, 250, 0.15);
  color: #E2E8F0;
}

[data-layer="systems"] pre::before {
  content: "●  ●  ●";
  display: block;
  font-size: 0.45rem;
  letter-spacing: 0.2em;
  color: rgba(148, 163, 184, 0.4);
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
  margin-bottom: 0.75rem;
}

/* --- Human: literary blockquote ornaments --- */
[data-layer="human"] blockquote::before {
  content: "\201C";
  position: absolute;
  top: -0.3rem;
  left: -0.5rem;
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 4rem;
  line-height: 1;
  color: rgba(180, 83, 9, 0.12);
  pointer-events: none;
}

[data-layer="human"] blockquote {
  position: relative;
  padding-left: 2rem;
}

/* --- Systems: accent line on left of content cards (data visualization feel) --- */
[data-layer="systems"] .exec-hero,
[data-layer="systems"] .exec-card,
[data-layer="systems"] .exec-section {
  border-left: 3px solid rgba(37, 99, 235, 0.12);
  padding-left: 1.5rem;
}

/* --- Human: soft float animation for decorative elements --- */
@keyframes float-gentle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.float-gentle {
  animation: float-gentle 6s ease-in-out infinite;
}

/* --- Systems: subtle scan-line animation on cards (tech dashboard feel) --- */
[data-layer="systems"] .card-surface::after,
[data-layer="systems"] .exec-hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.15), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

[data-layer="systems"] .card-surface:hover::after,
[data-layer="systems"] .exec-hero:hover::after {
  opacity: 1;
}

/* --- Human: warm glow on card hover (candlelight feel) --- */
[data-layer="human"] .card-surface:hover,
[data-layer="human"] .exec-hero:hover,
[data-layer="human"] .poem-card:hover {
  box-shadow:
    0 12px 32px rgba(28, 25, 23, 0.07),
    0 0 60px rgba(180, 83, 9, 0.04) !important;
}

/* --- Reading progress bar per layer --- */
[data-layer="systems"] .reading-progress-bar {
  background: linear-gradient(90deg, #2563EB, #60A5FA) !important;
}

[data-layer="human"] .reading-progress-bar {
  background: linear-gradient(90deg, #B45309, #F59E0B) !important;
}

/* --- Systems: data visualization accent on metrics --- */
[data-layer="systems"] .authority-card {
  border-left: 3px solid rgba(37, 99, 235, 0.15);
}

[data-layer="systems"] .authority-metric {
  font-variant-numeric: tabular-nums;
}

/* --- Human: generous first-letter treatment on prose --- */
[data-layer="human"] .blog-post > p:first-of-type::first-letter,
[data-layer="human"] .creative-lead::first-letter,
[data-layer="human"] .exec-lead::first-letter {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 3.2em;
  float: left;
  line-height: 0.8;
  margin-right: 0.1em;
  margin-top: 0.08em;
  color: var(--layer-accent);
  font-weight: 600;
}

/* --- Systems: chevron list markers --- */
[data-layer="systems"] .exec-card li::marker,
[data-layer="systems"] .case-study-points li::marker {
  content: "› ";
  color: #2563EB;
}

/* --- Human: em-dash list markers --- */
[data-layer="human"] .blog-post li::marker {
  content: "— ";
  color: #B45309;
}


/* --- Dark mode for global overrides --- */
[data-theme="dark"][data-layer="systems"] .card-surface,
[data-theme="dark"][data-layer="systems"] .writing-intro,
[data-theme="dark"][data-layer="systems"] .writing-topic-card,
[data-theme="dark"][data-layer="systems"] .writing-item,
[data-theme="dark"][data-layer="systems"] .post-preview,
[data-theme="dark"][data-layer="systems"] .project-card {
  background: #1E293B !important;
  border-color: rgba(148, 163, 184, 0.1) !important;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3) !important;
}

[data-theme="dark"][data-layer="human"] .card-surface,
[data-theme="dark"][data-layer="human"] .writing-intro,
[data-theme="dark"][data-layer="human"] .writing-topic-card,
[data-theme="dark"][data-layer="human"] .writing-item,
[data-theme="dark"][data-layer="human"] .post-preview,
[data-theme="dark"][data-layer="human"] .project-card {
  background: rgba(35, 31, 28, 0.95) !important;
  border-color: rgba(168, 162, 158, 0.1) !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25) !important;
}

[data-theme="dark"][data-layer="systems"] .kicker,
[data-theme="dark"][data-layer="systems"] .section-kicker,
[data-theme="dark"][data-layer="systems"] .creative-kicker {
  color: #60A5FA !important;
}

[data-theme="dark"][data-layer="human"] .kicker,
[data-theme="dark"][data-layer="human"] .section-kicker,
[data-theme="dark"][data-layer="human"] .creative-kicker {
  color: #F59E0B !important;
}

[data-theme="dark"][data-layer="systems"] .section-lead,
[data-theme="dark"][data-layer="systems"] .exec-lead,
[data-theme="dark"][data-layer="systems"] .blog-post blockquote {
  border-left-color: #60A5FA !important;
}

[data-theme="dark"][data-layer="human"] .section-lead,
[data-theme="dark"][data-layer="human"] .exec-lead,
[data-theme="dark"][data-layer="human"] .blog-post blockquote {
  border-left-color: #F59E0B !important;
}

[data-theme="dark"][data-layer="systems"] .metric-value,
[data-theme="dark"][data-layer="systems"] .exec-proof-metric,
[data-theme="dark"][data-layer="systems"] .authority-metric {
  color: #60A5FA !important;
}

[data-theme="dark"][data-layer="human"] .metric-value,
[data-theme="dark"][data-layer="human"] .exec-proof-metric,
[data-theme="dark"][data-layer="human"] .authority-metric {
  color: #F59E0B !important;
}
