/* ============================================================
   NEUBRUTALISM.COM — Design System & Styles
   A living reference that exemplifies what it teaches.
   ============================================================ */

/* --- DESIGN TOKENS --- */
:root {
  /* Border system */
  --border: 3px solid #000;
  --border-thin: 2px solid #000;
  --border-thick: 4px solid #000;

  /* Shadow system (hard offset, zero blur) */
  --shadow-sm: 3px 3px 0 0 #000;
  --shadow: 5px 5px 0 0 #000;
  --shadow-lg: 8px 8px 0 0 #000;
  --shadow-xl: 12px 12px 0 0 #000;

  /* Radius: zero. That's the point. */
  --radius: 0;

  /* Color palette */
  --black: #000;
  --white: #fff;
  --bg: #FFFDF5;
  --bg-warm: #f5f0e8;
  --yellow: #FFD23F;
  --yellow-light: #FFF3C4;
  --pink: #FF6B6B;
  --pink-light: #FFE0E0;
  --blue: #74B9FF;
  --blue-light: #E3F2FD;
  --green: #88D498;
  --green-light: #E8F5E9;
  --orange: #FFA552;
  --orange-light: #FFF0E0;
  --purple: #B8A9FA;
  --purple-light: #F0ECFF;
  --cyan: #7FDBDA;
  --red: #FF4444;

  /* Typography */
  --font-display: 'Syne', sans-serif;
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'Space Mono', monospace;

  /* Spacing scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;
}


/* --- RESET & BASE --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--black);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

a:hover {
  background: var(--yellow);
}

::selection {
  background: var(--yellow);
  color: var(--black);
}

::-moz-selection {
  background: var(--yellow);
  color: var(--black);
}


/* --- CUSTOM CURSOR --- */
body {
  cursor: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='20' height='20'><rect width='14' height='14' x='3' y='3' fill='%23000' stroke='%23fff' stroke-width='1'/></svg>") 10 10, auto;
}

a, button, [role='button'], input[type='range'], .swatch:hover, .card:hover {
  cursor: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24'><rect width='18' height='18' x='3' y='3' fill='%23FFD23F' stroke='%23000' stroke-width='2'/></svg>") 12 12, pointer;
}


/* --- SKIP LINK (a11y) --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: var(--yellow);
  border: var(--border);
  font-family: var(--font-heading);
  font-weight: 700;
  z-index: 9999;
}

.skip-link:focus {
  top: 1rem;
}


/* --- TYPOGRAPHY --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.display {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.03em;
}

h1, .h1 { font-size: clamp(2.5rem, 6vw, 5rem); font-weight: 700; }
h2, .h2 { font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 700; }
h3, .h3 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; }
h4, .h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); font-weight: 700; }

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.25rem; }
.text-xl { font-size: 1.5rem; }

.font-display { font-family: var(--font-display); }
.font-heading { font-family: var(--font-heading); }
.font-mono { font-family: var(--font-mono); }

.uppercase { text-transform: uppercase; }
.bold { font-weight: 700; }
.extrabold { font-weight: 800; }

p + p { margin-top: 1em; }


/* --- LAYOUT --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container-narrow {
  max-width: 800px;
}

.container-wide {
  max-width: 1400px;
}

section {
  padding: var(--space-4xl) 0;
}

.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex {
  display: flex;
  gap: var(--space-sm);
}

.flex-wrap { flex-wrap: wrap; }
.flex-center { align-items: center; }
.flex-between { justify-content: space-between; }

.text-center { text-align: center; }

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  padding: 0.4rem 0.8rem;
  border: var(--border-thin);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-lg);
}

.section-intro {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  line-height: 1.65;
  max-width: 720px;
}


/* --- NAVIGATION --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: var(--border-thick);
  padding: 0.75rem 0;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.nav-logo:hover {
  background: none;
}

.nav-links {
  display: flex;
  gap: 0;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 0.4rem 0.6rem;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  border: 2px solid transparent;
  transition: all 0.15s ease;
}

.nav-links a:hover {
  border: var(--border-thin);
  box-shadow: var(--shadow-sm);
  background: var(--yellow);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: var(--border);
  padding: 0.5rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  cursor: pointer;
}

.nav-links.is-open {
  display: flex !important;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: var(--border-thick);
  padding: var(--space-sm) 0;
  z-index: 999;
}

.nav-links.is-open a {
  padding: 0.75rem var(--space-md);
  border-bottom: var(--border-thin);
  border-left: none;
  border-right: none;
  border-top: none;
}

.nav-links a.active {
  background: var(--yellow);
  border-color: var(--black);
  box-shadow: var(--shadow-sm);
}

.nav.is-scrolled {
  box-shadow: 0 4px 0 0 #000;
}


/* --- HERO --- */
.hero {
  background: var(--yellow);
  border-bottom: var(--border-thick);
  padding: var(--space-3xl) 0 var(--space-4xl);
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3.5rem, 10vw, 9rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-lg);
}

.hero-subtitle {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  line-height: 1.4;
  max-width: 700px;
  margin-bottom: var(--space-xl);
  font-weight: 500;
}

.hero-description {
  font-size: 1.125rem;
  max-width: 600px;
  line-height: 1.7;
}

.hero-cards {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  perspective: 800px;
}

.hero-card {
  width: 220px;
  height: 140px;
  border: var(--border);
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s cubic-bezier(0.2, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  text-align: center;
  padding: var(--space-sm);
}

.hero-card:nth-child(1) {
  background: var(--white);
  transform: rotate(-3deg);
}

.hero-card:nth-child(2) {
  background: var(--pink);
  transform: rotate(2deg) translateX(-30px);
}

.hero-card:nth-child(3) {
  background: var(--cyan);
  transform: rotate(-1deg) translateX(10px);
}

.hero-cta {
  display: inline-flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  flex-wrap: wrap;
}


/* --- MARQUEE --- */
.marquee {
  background: var(--black);
  color: var(--white);
  border-bottom: var(--border-thick);
  padding: 0.75rem 0;
  overflow: hidden;
  white-space: nowrap;
}

.marquee-track {
  display: inline-flex;
  animation: marquee 40s linear infinite;
}

.marquee-content {
  display: inline-flex;
  align-items: center;
  gap: 2rem;
  padding-right: 2rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.marquee-dot {
  width: 8px;
  height: 8px;
  background: var(--yellow);
  flex-shrink: 0;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}


/* --- COMPONENTS: CARDS --- */
.card {
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: var(--space-lg);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
}

.card-flat {
  box-shadow: none;
}

.card-flat:hover {
  transform: none;
  box-shadow: none;
}

.card-header {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}


/* --- COMPONENTS: BUTTONS --- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: var(--border);
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  box-shadow: var(--shadow);
  background: var(--white);
  color: var(--black);
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
  background: var(--white);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

.btn:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--black);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--black);
  color: var(--white);
}

.btn-yellow { background: var(--yellow); }
.btn-pink { background: var(--pink); }
.btn-blue { background: var(--blue); }
.btn-green { background: var(--green); }
.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  box-shadow: var(--shadow-sm);
}

.btn-small:hover {
  box-shadow: var(--shadow);
}


/* --- COMPONENTS: BADGES --- */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: var(--border-thin);
  box-shadow: var(--shadow-sm);
  background: var(--white);
}

.badge-yellow { background: var(--yellow); }
.badge-pink { background: var(--pink); }
.badge-blue { background: var(--blue); }
.badge-green { background: var(--green); }
.badge-orange { background: var(--orange); }
.badge-purple { background: var(--purple); }


/* --- COMPONENTS: PULL QUOTE --- */
.pullquote {
  border-left: 6px solid var(--black);
  padding: var(--space-lg) var(--space-xl);
  margin: var(--space-xl) 0;
  background: var(--yellow-light);
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 500;
  line-height: 1.4;
  position: relative;
}

.pullquote::before {
  content: '"';
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  position: absolute;
  top: -0.25rem;
  left: 1rem;
  line-height: 1;
  opacity: 0.2;
}

.pullquote cite {
  display: block;
  font-size: 0.875rem;
  font-weight: 400;
  font-style: normal;
  margin-top: var(--space-sm);
  font-family: var(--font-mono);
}


/* --- COMPONENTS: TYPE CARDS --- */
.type-card {
  border: var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.type-card-header {
  padding: var(--space-sm) var(--space-md);
  border-bottom: var(--border);
  background: var(--bg-warm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.type-card-header h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0;
}

.type-card-specimen {
  padding: var(--space-lg);
  background: var(--white);
}

.type-card-sample {
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  line-height: 1.15;
  margin-bottom: var(--space-sm);
}

.type-card-alphabet {
  font-size: 0.8rem;
  line-height: 1.6;
  color: #777;
  word-break: break-all;
}

.type-card-meta {
  padding: var(--space-sm) var(--space-md);
  border-top: var(--border-thin);
  background: var(--bg-warm);
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  line-height: 1.6;
}


/* --- COMPONENTS: PAIRING CARDS --- */
.pairing-card {
  border: var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.pairing-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
}

.pairing-card-header {
  padding: var(--space-sm) var(--space-md);
  border-bottom: var(--border);
  background: var(--bg-warm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
}

.pairing-card-body {
  padding: var(--space-md);
  background: var(--white);
}

.pairing-tier {
  padding: var(--space-xs) 0;
  border-bottom: 1px solid #eee;
}

.pairing-tier:last-child {
  border-bottom: none;
}


/* --- COMPONENTS: CODE BLOCKS --- */
.code-block {
  background: #1a1a2e;
  color: #e0e0e0;
  border: var(--border);
  padding: var(--space-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  box-shadow: var(--shadow);
}

.code-block .comment { color: #6b7280; }
.code-block .property { color: #7FDBDA; }
.code-block .value { color: #FFD23F; }
.code-block .selector { color: #FF6B6B; }
.code-block .tag { color: #74B9FF; }
.code-block .string { color: #88D498; }

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-warm);
  padding: 0.15em 0.4em;
  border: 1px solid #ddd;
}

.code-label {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--black);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: var(--border);
  margin-bottom: -3px;
  position: relative;
  z-index: 1;
}


/* --- COMPONENTS: COMPARISON TABLE --- */
.comparison-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  border: var(--border);
  font-size: 0.95rem;
}

.comparison-table th,
.comparison-table td {
  padding: 1rem 1.25rem;
  border: var(--border-thin);
  text-align: left;
  vertical-align: top;
}

.comparison-table thead th {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
}

.comparison-table tbody th {
  background: var(--bg-warm);
  font-family: var(--font-heading);
  font-weight: 600;
  white-space: nowrap;
}

.comparison-table tbody tr:hover {
  background: var(--yellow-light);
}


/* --- COMPONENTS: ERA CARDS --- */
.era-card {
  border: var(--border);
  box-shadow: var(--shadow);
  background: var(--white);
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.era-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
}

.era-card-header {
  padding: var(--space-md);
  border-bottom: var(--border);
}

.era-card-era {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.15rem 0.5rem;
  background: var(--black);
  color: var(--white);
  margin-bottom: 0.5rem;
}

.era-card-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  line-height: 1.2;
}

.era-card-body {
  padding: var(--space-md);
  flex: 1;
}

.era-card-body dt {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: var(--space-sm);
  padding-bottom: 0.25rem;
  border-bottom: 1px solid #ddd;
}

.era-card-body dt:first-child {
  margin-top: 0;
}

.era-card-body dd {
  margin: 0;
  padding-top: 0.35rem;
  font-size: 0.9rem;
  line-height: 1.5;
}


/* --- COMPONENTS: DEMO BOX --- */
.demo-box {
  border: var(--border);
  background: var(--white);
  padding: var(--space-lg);
  box-shadow: var(--shadow);
}

.demo-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #666;
  margin-bottom: var(--space-sm);
}

.demo-row {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
}


/* --- COLOR SWATCHES --- */
.swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-sm);
}

.swatch {
  border: var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.swatch-color {
  height: 80px;
}

.swatch-info {
  padding: 0.5rem 0.75rem;
  background: var(--white);
  border-top: var(--border-thin);
}

.swatch-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
}

.swatch-hex {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #666;
}


/* --- SHADOW COMPARISON --- */
.shadow-demos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
}

.shadow-demo {
  text-align: center;
}

.shadow-demo-box {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--space-sm);
  border: var(--border);
  background: var(--white);
}

.shadow-demo-box.shadow-none { box-shadow: none; }
.shadow-demo-box.shadow-soft { box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.shadow-demo-box.shadow-neu { box-shadow: 5px 5px 0 0 #000; }
.shadow-demo-box.shadow-large { box-shadow: 10px 10px 0 0 #000; }

.shadow-demo-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}


/* --- BORDER DEMOS --- */
.border-demos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-lg);
}

.border-demo {
  text-align: center;
}

.border-demo-box {
  width: 120px;
  height: 80px;
  margin: 0 auto var(--space-sm);
  border: 3px solid #000;
  background: var(--white);
}

.border-demo-box.border-rounded { border-radius: 12px; }
.border-demo-box.border-pill { border-radius: 999px; }
.border-demo-box.border-square { border-radius: 0; }
.border-demo-box.border-thin { border-width: 1px; }
.border-demo-box.border-thick { border-width: 4px; }

.border-demo-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}


/* --- TIMELINE --- */
.timeline {
  position: relative;
  padding-left: 3rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--black);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-xl);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -3rem;
  top: 0.25rem;
  width: 20px;
  height: 20px;
  border: var(--border);
  background: var(--yellow);
  transform: translateX(-8px);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
  display: inline-block;
  padding: 0.15rem 0.5rem;
  background: var(--black);
  color: var(--white);
}

.timeline-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  margin: 0.5rem 0;
}

.timeline-text {
  font-size: 1rem;
  line-height: 1.65;
  max-width: 600px;
}


/* --- DO / DON'T BOXES --- */
.do-dont {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.do-box, .dont-box {
  border: var(--border);
  padding: var(--space-lg);
}

.do-box {
  background: var(--green-light);
  box-shadow: 5px 5px 0 0 var(--green);
}

.dont-box {
  background: var(--pink-light);
  box-shadow: 5px 5px 0 0 var(--pink);
}

.do-box h4, .dont-box h4 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.do-box ul, .dont-box ul {
  padding-left: 1.25rem;
}

.do-box li, .dont-box li {
  margin-bottom: 0.5rem;
  line-height: 1.5;
}


/* --- SECTOR CARDS --- */
.sector-card {
  border: var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.sector-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
}

.sector-card-header {
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  border-bottom: var(--border);
}

.sector-card-body {
  padding: var(--space-md);
  background: var(--white);
}

.sector-card-body p {
  font-size: 0.95rem;
  line-height: 1.6;
}

.sector-good .sector-card-header { background: var(--green); }
.sector-ok .sector-card-header { background: var(--yellow); }
.sector-bad .sector-card-header { background: var(--pink); }


/* --- TOKEN TABLE --- */
.token-table {
  width: 100%;
  border-collapse: collapse;
  border: var(--border);
  font-size: 0.9rem;
}

.token-table th,
.token-table td {
  padding: 0.75rem 1rem;
  border: var(--border-thin);
  text-align: left;
}

.token-table thead th {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
}

.token-table tbody tr:nth-child(even) {
  background: var(--bg-warm);
}

.token-table code {
  background: transparent;
  border: none;
  padding: 0;
  font-size: 0.85rem;
}


/* --- ECOSYSTEM GRID --- */
.ecosystem-card {
  border: var(--border);
  box-shadow: var(--shadow);
  padding: var(--space-md);
  background: var(--white);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.ecosystem-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
}

.ecosystem-card h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.ecosystem-card p {
  font-size: 0.9rem;
  line-height: 1.5;
}

.ecosystem-card .badge {
  margin-bottom: 0.75rem;
}


/* --- CHEAT SHEET --- */
.cheat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.cheat-item {
  border: var(--border);
  box-shadow: var(--shadow-sm);
  padding: var(--space-md);
  background: var(--white);
}

.cheat-item h4 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  color: #666;
}

.cheat-item .cheat-value {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
}

.cheat-item code {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8rem;
}


/* --- INTERACTIVE BUTTON DEMO --- */
.button-playground {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  align-items: flex-start;
}

.btn-demo {
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  border: 3px solid #000;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.btn-demo-default {
  background: var(--white);
  box-shadow: 5px 5px 0 0 #000;
}
.btn-demo-default:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 0 #000;
}
.btn-demo-default:active {
  transform: translate(3px, 3px);
  box-shadow: none;
}

.btn-demo-yellow {
  background: var(--yellow);
  box-shadow: 5px 5px 0 0 #000;
}
.btn-demo-yellow:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 0 #000;
}
.btn-demo-yellow:active {
  transform: translate(3px, 3px);
  box-shadow: none;
}

.btn-demo-dark {
  background: var(--black);
  color: var(--white);
  box-shadow: 5px 5px 0 0 var(--pink);
}
.btn-demo-dark:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 0 var(--pink);
}
.btn-demo-dark:active {
  transform: translate(3px, 3px);
  box-shadow: none;
}

.btn-demo-outline {
  background: transparent;
  box-shadow: none;
  border: 3px solid var(--black);
}
.btn-demo-outline:hover {
  background: var(--yellow);
  box-shadow: 5px 5px 0 0 #000;
  transform: translate(-2px, -2px);
}


/* --- CARD DEMOS --- */
.card-demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.card-demo {
  border: 3px solid #000;
  padding: 1.5rem;
  background: var(--white);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card-demo-1 {
  box-shadow: 5px 5px 0 0 #000;
}
.card-demo-1:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 0 #000;
}

.card-demo-2 {
  box-shadow: 5px 5px 0 0 var(--pink);
  border-color: var(--pink);
}

.card-demo-3 {
  background: var(--yellow);
  box-shadow: 8px 8px 0 0 #000;
}

.card-demo h5 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.card-demo p {
  font-size: 0.9rem;
  line-height: 1.5;
}


/* --- TYPE SPECIMEN --- */
.type-specimen {
  border: var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.type-specimen-header {
  padding: var(--space-sm) var(--space-md);
  border-bottom: var(--border);
  background: var(--bg-warm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.type-specimen-body {
  padding: var(--space-lg);
  background: var(--white);
}


/* --- NUMBER/STAT CALLOUT --- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

.stat-card {
  border: var(--border);
  box-shadow: var(--shadow);
  padding: var(--space-lg);
  text-align: center;
  background: var(--white);
  overflow: hidden;
}

.stat-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #000;
}


/* --- SECTION BACKGROUNDS --- */
.bg-white { background: var(--white); }
.bg-warm { background: var(--bg-warm); }
.bg-yellow { background: var(--yellow); }
.bg-yellow-light { background: var(--yellow-light); }
.bg-pink-light { background: var(--pink-light); }
.bg-blue-light { background: var(--blue-light); }
.bg-green-light { background: var(--green-light); }
.bg-orange-light { background: var(--orange-light); }
.bg-purple-light { background: var(--purple-light); }
.bg-black { background: var(--black); color: var(--white); }


/* --- SECTION DIVIDER --- */
.divider {
  border: none;
  border-top: var(--border-thick);
  margin: 0;
}

.divider-thin {
  border-top: var(--border-thin);
}

.divider-band {
  border: none;
  border-top: var(--border-thick);
  border-bottom: var(--border-thick);
  margin: 0;
  height: 16px;
}

.divider-band-yellow { background: var(--yellow); }
.divider-band-pink { background: var(--pink); }
.divider-band-blue { background: var(--blue); }
.divider-band-green { background: var(--green); }
.divider-band-orange { background: var(--orange); }
.divider-band-purple { background: var(--purple); }


/* --- INLINE HIGHLIGHT --- */
mark {
  background: var(--yellow);
  padding: 0.1em 0.3em;
  border-bottom: 2px solid var(--black);
}


/* --- FOOTER --- */
.footer {
  background: var(--black);
  color: var(--white);
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: var(--border-thick);
}

.footer a {
  color: var(--yellow);
}

.footer a:hover {
  background: var(--yellow);
  color: var(--black);
}

.footer-grid {
  display: grid;
  grid-template-columns: 3fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.1rem, 5vw, 2rem);
  margin-bottom: var(--space-sm);
  overflow-wrap: break-word;
  word-break: break-word;
}

.footer h4 {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
  color: var(--yellow);
}

.footer ul {
  list-style: none;
}

.footer li {
  margin-bottom: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #888;
}


/* --- DOT PATTERN (subtle texture) --- */
.pattern-dots {
  background-image: radial-gradient(#000 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.03;
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}


/* --- INTERACTIVE PLAYGROUND --- */
.playground {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: var(--border-thick);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.playground-preview {
  background: var(--bg-warm);
  background-image: radial-gradient(#ccc 1px, transparent 1px);
  background-size: 16px 16px;
  padding: var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: var(--border);
  min-height: 320px;
}

.playground-card {
  background: var(--white);
  padding: var(--space-lg);
  border: 3px solid #000;
  box-shadow: 5px 5px 0 0 #000;
  border-radius: 0;
  transition: all 0.15s ease;
  max-width: 280px;
  width: 100%;
}

.playground-card h5 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.playground-card p {
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: var(--space-sm);
}

.playground-btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  border: 2px solid #000;
  box-shadow: 3px 3px 0 0 #000;
  border-radius: 0;
  background: var(--yellow);
  transition: all 0.15s ease;
}

.playground-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 0 #000;
}

.playground-btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

.playground-controls {
  padding: var(--space-lg);
  background: var(--white);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  justify-content: center;
}

.playground-controls label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.playground-controls label > span,
.playground-controls > div > span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #555;
}

.playground-controls input[type='range'] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  background: var(--bg-warm);
  border: 2px solid #000;
  border-radius: 0;
  outline: none;
}

.playground-controls input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  background: var(--yellow);
  border: 2px solid #000;
}

.playground-controls input[type='range']::-moz-range-thumb {
  width: 22px;
  height: 22px;
  background: var(--yellow);
  border: 2px solid #000;
  border-radius: 0;
}

.playground-controls input[type='range']:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}

.playground-controls output {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
}

.playground-colors {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.playground-colors button {
  width: 36px;
  height: 36px;
  border: 2px solid #000;
  font-size: 0;
  color: transparent;
  overflow: hidden;
  transition: transform 0.1s, box-shadow 0.1s;
}

.playground-colors button.active {
  box-shadow: 3px 3px 0 0 #000;
  transform: translate(-2px, -2px);
}

.playground-colors button:hover {
  transform: translate(-1px, -1px);
  box-shadow: 2px 2px 0 0 #000;
}


/* --- STYLE TOGGLE DEMO --- */
.style-toggle-demo {
  border: var(--border-thick);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.style-toggle-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  background: var(--black);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.style-toggle-btns {
  display: flex;
  gap: 0.5rem;
}

.style-toggle-btn {
  padding: 0.35rem 0.75rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.75rem;
  border: 2px solid rgba(255,255,255,0.3);
  background: transparent;
  color: #ccc;
  cursor: pointer;
  transition: all 0.15s;
}

.style-toggle-btn:hover {
  border-color: var(--yellow);
  color: var(--yellow);
}

.style-toggle-btn.is-active {
  background: var(--yellow);
  color: var(--black);
  border-color: var(--yellow);
}

.style-toggle-body {
  padding: var(--space-xl);
  background: #f8f8f8;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 360px;
  transition: background 0.4s;
}

.style-toggle-body.is-neu {
  background: var(--bg-warm);
  background-image: radial-gradient(#ccc 1px, transparent 1px);
  background-size: 16px 16px;
}

.toggle-preview-card {
  background: #fff;
  padding: var(--space-lg);
  max-width: 320px;
  width: 100%;
  transition: all 0.4s cubic-bezier(0.2, 0, 0.2, 1);
  border: 1px solid #e2e2e2;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.toggle-preview-card.is-neu {
  border: 3px solid #000;
  border-radius: 0;
  box-shadow: 8px 8px 0 0 #000;
}

.toggle-preview-card .tp-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.7rem;
  font-family: var(--font-body);
  border: 1px solid #e2e2e2;
  border-radius: 999px;
  color: #888;
  margin-bottom: 0.75rem;
  transition: all 0.4s;
}

.toggle-preview-card.is-neu .tp-badge {
  border: 2px solid #000;
  border-radius: 0;
  background: var(--pink);
  color: #000;
  font-family: var(--font-mono);
  font-weight: 700;
  box-shadow: 2px 2px 0 0 #000;
}

.toggle-preview-card h5 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  transition: all 0.4s;
}

.toggle-preview-card.is-neu h5 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
}

.toggle-preview-card p {
  font-size: 0.9rem;
  line-height: 1.5;
  color: #666;
  margin-bottom: var(--space-md);
}

.toggle-preview-card .tp-btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  border: 1px solid #e2e2e2;
  border-radius: 8px;
  background: #f5f5f5;
  color: #333;
  cursor: default;
  transition: all 0.4s cubic-bezier(0.2, 0, 0.2, 1);
}

.toggle-preview-card.is-neu .tp-btn {
  border: 3px solid #000;
  border-radius: 0;
  background: var(--yellow);
  color: #000;
  font-weight: 700;
  box-shadow: 4px 4px 0 0 #000;
}


/* --- FORM ELEMENTS DEMO --- */
.form-demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.form-demo-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nb-label {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
}

.nb-input,
.nb-textarea,
.nb-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: var(--border);
  border-radius: 0;
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.nb-input:focus,
.nb-textarea:focus,
.nb-select:focus {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
  box-shadow: var(--shadow);
  transform: translate(-1px, -1px);
}

.nb-input::placeholder,
.nb-textarea::placeholder {
  color: #999;
}

.nb-textarea {
  resize: vertical;
  min-height: 80px;
}

.nb-select {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23000' stroke-width='2' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.nb-checkbox,
.nb-radio {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.nb-checkbox input[type="checkbox"],
.nb-radio input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border: var(--border);
  border-radius: 0;
  background: var(--white);
  flex-shrink: 0;
  cursor: pointer;
  position: relative;
  transition: background 0.15s;
}

.nb-checkbox input[type="checkbox"]:checked {
  background: var(--yellow);
}

.nb-checkbox input[type="checkbox"]:checked::after {
  content: '\2713';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-weight: 800;
  font-size: 1rem;
  line-height: 1;
}

.nb-radio input[type="radio"]:checked {
  background: var(--pink);
}

.nb-radio input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background: #000;
}

.nb-checkbox input:focus-visible,
.nb-radio input:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}

.nb-toggle-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.nb-toggle-label input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.nb-toggle-track {
  width: 52px;
  height: 28px;
  border: var(--border);
  background: var(--bg-warm);
  position: relative;
  flex-shrink: 0;
  transition: background 0.2s;
}

.nb-toggle-thumb {
  width: 18px;
  height: 18px;
  background: var(--white);
  border: 2px solid #000;
  position: absolute;
  top: 2px;
  left: 2px;
  transition: transform 0.2s cubic-bezier(0.2, 0, 0.2, 1);
}

.nb-toggle-label input:checked + .nb-toggle-track {
  background: var(--green);
}

.nb-toggle-label input:checked + .nb-toggle-track .nb-toggle-thumb {
  transform: translateX(24px);
}

.nb-toggle-label input:focus-visible + .nb-toggle-track {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}


/* --- TOAST DEMO --- */
.toast-demo-container {
  border: var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.toast-demo-controls {
  padding: var(--space-md);
  background: var(--white);
  border-bottom: var(--border);
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.toast-demo-area {
  position: relative;
  min-height: 220px;
  background: var(--bg-warm);
  background-image: radial-gradient(#ccc 1px, transparent 1px);
  background-size: 16px 16px;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  overflow: hidden;
}

.nb-toast {
  padding: 0.75rem var(--space-md);
  border: var(--border);
  box-shadow: var(--shadow);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 340px;
  width: 100%;
  animation: toast-in 0.3s cubic-bezier(0.2, 0, 0.2, 1) forwards;
}

.nb-toast-success { background: var(--green); }
.nb-toast-error { background: var(--pink); }
.nb-toast-info { background: var(--blue); }
.nb-toast-warning { background: var(--yellow); }

.nb-toast-icon { font-size: 1.1rem; flex-shrink: 0; }

.nb-toast-dismiss {
  margin-left: auto;
  background: none;
  border: 2px solid #000;
  font-size: 0.9rem;
  cursor: pointer;
  font-weight: 700;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.15s;
}

.nb-toast-dismiss:hover {
  background: rgba(0,0,0,0.1);
}

.nb-toast.is-leaving {
  animation: toast-out 0.25s cubic-bezier(0.2, 0, 0.2, 1) forwards;
}

@keyframes toast-in {
  from { transform: translateY(20px) scale(0.95); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

@keyframes toast-out {
  from { transform: translateY(0) scale(1); opacity: 1; }
  to { transform: translateY(-10px) scale(0.95); opacity: 0; }
}


/* --- CONTRAST CHECKER --- */
.contrast-checker {
  border: var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.contrast-checker-top {
  padding: var(--space-lg);
  background: var(--white);
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
  flex-wrap: wrap;
}

.contrast-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contrast-input-group .nb-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #555;
}

.contrast-color-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.contrast-color-row input[type="color"] {
  width: 48px;
  height: 48px;
  border: var(--border);
  padding: 2px;
  cursor: pointer;
  background: none;
}

.contrast-color-row input[type="text"] {
  width: 90px;
  padding: 0.5rem;
  border: var(--border);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
}

.contrast-result-area {
  flex: 1;
  min-width: 180px;
  text-align: center;
}

.contrast-ratio-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1;
}

.contrast-wcag-badges {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.contrast-preview-strip {
  padding: var(--space-md) var(--space-lg);
  border-top: var(--border);
  text-align: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
}


/* --- CODE COPY BUTTON --- */
.code-block-wrap {
  position: relative;
}

.code-copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.3rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 2px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.06);
  color: #999;
  cursor: pointer;
  transition: all 0.15s;
  z-index: 2;
}

.code-copy-btn:hover {
  background: var(--yellow);
  color: var(--black);
  border-color: var(--yellow);
}

.code-copy-btn.is-copied {
  background: var(--green);
  color: var(--black);
  border-color: var(--green);
}


/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .hero-cards { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root {
    --shadow: 4px 4px 0 0 #000;
    --shadow-lg: 6px 6px 0 0 #000;
    --shadow-xl: 8px 8px 0 0 #000;
  }

  section {
    padding: var(--space-2xl) 0;
  }

  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }

  .nav-logo { font-size: 1.2rem; }
  .nav-links:not(.is-open) { display: none; }
  .mobile-menu-toggle { display: block; }

  .playground { grid-template-columns: 1fr; }
  .playground-preview { border-right: none; border-bottom: var(--border); min-height: 240px; }

  .hero { padding: var(--space-2xl) 0; }
  .hero-title { font-size: clamp(2.5rem, 12vw, 5rem); }

  .comparison-table { font-size: 0.8rem; }
  .comparison-table th,
  .comparison-table td { padding: 0.5rem; }

  .do-dont { grid-template-columns: 1fr; }

  .style-toggle-body { min-height: 280px; padding: var(--space-md); }
  .contrast-checker-top { gap: var(--space-md); }
  .form-demo-grid { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-sm); text-align: center; }

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

@media (max-width: 480px) {
  .container { padding: 0 var(--space-sm); }
  .hero-title { font-size: 2.5rem; }
  .btn { padding: 0.625rem 1.25rem; font-size: 0.9rem; }
  .swatch-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: 1fr; }
  .cheat-grid { grid-template-columns: 1fr; }
}

@media (max-width: 320px) {
  :root {
    --space-md: 1rem;
    --space-lg: 1.25rem;
    --space-xl: 1.75rem;
    --space-2xl: 2.5rem;
    --space-3xl: 3rem;
    --shadow: 3px 3px 0 0 #000;
    --shadow-lg: 5px 5px 0 0 #000;
    --shadow-xl: 6px 6px 0 0 #000;
  }

  body { font-size: 1rem; }

  .container { padding: 0 0.625rem; }

  .hero-title { font-size: clamp(1.75rem, 14vw, 2.5rem); }
  .hero-subtitle { font-size: 1rem; }

  h2, .h2 { font-size: 1.5rem; }
  h3, .h3 { font-size: 1.2rem; }
  h4, .h4 { font-size: 1.05rem; }

  .nav-logo { font-size: 0.95rem; letter-spacing: -0.04em; }

  .section-label { font-size: 0.65rem; padding: 0.3rem 0.5rem; }

  .pullquote { padding: var(--space-sm) var(--space-md); font-size: 1rem; }
  .pullquote::before { font-size: 2.5rem; left: 0.5rem; }

  .card { padding: var(--space-sm); }

  .comparison-table { font-size: 0.7rem; }
  .comparison-table th,
  .comparison-table td { padding: 0.35rem 0.4rem; }

  .token-table { font-size: 0.75rem; }
  .token-table th,
  .token-table td { padding: 0.4rem 0.5rem; }

  .swatch-grid { grid-template-columns: repeat(2, 1fr); }
  .swatch-color { height: 50px; }

  .shadow-demos { grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); }
  .shadow-demo-box { width: 80px; height: 80px; }

  .border-demos { grid-template-columns: repeat(3, 1fr); gap: var(--space-sm); }
  .border-demo-box { width: 70px; height: 50px; }

  .btn { padding: 0.5rem 0.875rem; font-size: 0.8rem; }
  .btn-demo { padding: 0.5rem 0.875rem; font-size: 0.85rem; }

  .badge { font-size: 0.65rem; padding: 0.2rem 0.5rem; }

  .code-block { font-size: 0.7rem; padding: var(--space-sm); }

  .timeline { padding-left: 2rem; }
  .timeline-dot { left: -2rem; width: 16px; height: 16px; transform: translateX(-6px); }
  .timeline-title { font-size: 1rem; }
  .timeline-text { font-size: 0.875rem; }

  .stat-number { font-size: 2rem; }

  .sector-card-header { font-size: 0.95rem; padding: 0.5rem 0.75rem; }
  .sector-card-body { padding: 0.75rem; }
  .sector-card-body p { font-size: 0.85rem; }

  .playground-preview { min-height: 200px; padding: var(--space-sm); }
  .playground-card { padding: var(--space-sm); max-width: 100%; }
  .playground-controls { padding: var(--space-sm); }

  .footer-brand { font-size: 1.4rem; }

  .marquee-content { font-size: 0.8rem; gap: 1rem; }
}


/* --- REDUCED MOTION --- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .marquee-track { animation: none; }

  .card:hover,
  .btn:hover,
  .btn:active,
  .sector-card:hover,
  .ecosystem-card:hover {
    transform: none;
  }
}


/* --- FOCUS VISIBLE (global) --- */
*:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}


/* --- PRINT --- */
@media print {
  .nav, .marquee, .hero-cards { display: none; }
  body { font-size: 12pt; background: white; }
  section { padding: 1rem 0; }
  .card, .demo-box { box-shadow: none; break-inside: avoid; }
  a { text-decoration: underline; }
  a[href]::after { content: " (" attr(href) ")"; font-size: 0.8em; }
}


/* --- UTILITIES --- */
.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.overflow-x-auto {
  overflow-x: auto;
}