/* ============================================
   T/X/Y/and/Z - High Visibility Theme System
   ============================================ */

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

/* Theme Variables - Default White */
:root {
  --bg: #ffffff;
  --fg: #000000;
  --border: #000000;
  
  /* All 22 theme colors */
  --white: #ffffff;
  --black: #000000;
  
  --blue-900: #00008B;
  --blue-800: #0000CD;
  --blue-700: #0000FF;
  --blue-500: #4169E1;
  --blue-100: #ADD8E6;
  
  --red-900: #8B0000;
  --red-800: #B22222;
  --red-700: #DC143C;
  --red-500: #FF6347;
  --red-100: #FFC0CB;
  
  --orange-900: #FF4500;
  --orange-800: #FF6600;
  --orange-700: #FF8C00;
  --orange-500: #FFA500;
  --orange-100: #FFEFD5;
  
  --green-900: #006400;
  --green-800: #228B22;
  --green-700: #32CD32;
  --green-500: #90EE90;
  --green-100: #F0FFF0;
}

/* Theme Classes */
.theme-white { --bg: #ffffff; --fg: #000000; --border: #000000; }
.theme-black { --bg: #000000; --fg: #ffffff; --border: #ffffff; }

.theme-blue-900 { --bg: #00008B; --fg: #ffffff; --border: #ffffff; }
.theme-blue-800 { --bg: #0000CD; --fg: #ffffff; --border: #ffffff; }
.theme-blue-700 { --bg: #0000FF; --fg: #ffffff; --border: #ffffff; }
.theme-blue-500 { --bg: #4169E1; --fg: #ffffff; --border: #ffffff; }
.theme-blue-100 { --bg: #ADD8E6; --fg: #000000; --border: #000000; }

.theme-red-900 { --bg: #8B0000; --fg: #ffffff; --border: #ffffff; }
.theme-red-800 { --bg: #B22222; --fg: #ffffff; --border: #ffffff; }
.theme-red-700 { --bg: #DC143C; --fg: #ffffff; --border: #ffffff; }
.theme-red-500 { --bg: #FF6347; --fg: #ffffff; --border: #ffffff; }
.theme-red-100 { --bg: #FFC0CB; --fg: #000000; --border: #000000; }

.theme-orange-900 { --bg: #FF4500; --fg: #ffffff; --border: #ffffff; }
.theme-orange-800 { --bg: #FF6600; --fg: #000000; --border: #000000; }
.theme-orange-700 { --bg: #FF8C00; --fg: #000000; --border: #000000; }
.theme-orange-500 { --bg: #FFA500; --fg: #000000; --border: #000000; }
.theme-orange-100 { --bg: #FFEFD5; --fg: #000000; --border: #000000; }

.theme-green-900 { --bg: #006400; --fg: #ffffff; --border: #ffffff; }
.theme-green-800 { --bg: #228B22; --fg: #ffffff; --border: #ffffff; }
.theme-green-700 { --bg: #32CD32; --fg: #ffffff; --border: #ffffff; }
.theme-green-500 { --bg: #90EE90; --fg: #000000; --border: #000000; }
.theme-green-100 { --bg: #F0FFF0; --fg: #000000; --border: #000000; }

/* Base Styles */
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  line-height: 1.4;
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 0.9;
}

h1 {
  font-size: clamp(3rem, 15vw, 12rem);
}

h2 {
  font-size: clamp(2rem, 8vw, 6rem);
}

h3 {
  font-size: clamp(1.5rem, 4vw, 3rem);
}

p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.6;
}

a {
  color: var(--fg);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ============================================
   Marquee Section (fixed below sticky header)
   ============================================ */
.marquee-section {
  position: fixed;
  top: 3.5rem; /* Below the header */
  left: 0;
  right: 0;
  z-index: 99; /* Just below header (100) */
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.marquee-row {
  overflow: hidden;
  padding: 0.75rem 0;
}

.marquee-row-top {
  border-bottom: none;
}

.marquee-divider-line {
  height: 1px;
  background: var(--border);
}

.marquee-row-bottom {
  border-top: none;
}

.marquee {
  display: flex;
  white-space: nowrap;
}

.marquee-left {
  animation: marquee-scroll-left 40s linear infinite;
}

.marquee-right {
  animation: marquee-scroll-right 40s linear infinite;
}

.marquee-content {
  display: flex;
  align-items: center;
}

.marquee-item {
  font-size: clamp(0.875rem, 2vw, 1.25rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  padding: 0 0.5rem;
}

.marquee-divider {
  font-size: clamp(0.875rem, 2vw, 1.25rem);
  font-weight: 400;
  opacity: 0.5;
  padding: 0 0.25rem;
}

@keyframes marquee-scroll-left {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes marquee-scroll-right {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}

/* ============================================
   Header
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 1rem;
  pointer-events: none;
  background: var(--bg);
}

.header > * {
  pointer-events: auto;
}

.header-left {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo {
  font-size: 1.125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.header-center {
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  flex: 1;
  padding: 0 1rem;
}

.header-stat {
  font-size: 0.75rem;
  font-weight: 400;
  opacity: 0.7;
  white-space: nowrap;
}

.header-right {
  display: flex;
  gap: 0.5rem;
}

.header-btn {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.header-btn:hover {
  background: var(--fg);
  color: var(--bg);
}

.header-btn.active {
  background: var(--fg);
  color: var(--bg);
}

/* ============================================
   Visibility Side Panel
   ============================================ */
.visibility-overlay {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 320px;
  max-width: 100%;
  z-index: 101; /* Above header */
  background: var(--bg);
  border-left: 1px solid var(--border);
  display: none;
  flex-direction: column;
  padding: 1rem;
  overflow-y: auto;
}

.visibility-overlay.active {
  display: flex;
}

/* Close Button */
.visibility-close {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
  align-self: flex-start;
  margin-bottom: 1.5rem;
}

.visibility-close:hover {
  background: var(--fg);
  color: var(--bg);
}

/* Section */
.visibility-section {
  margin-bottom: 1.5rem;
}

.visibility-section-heading {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.5;
  margin-bottom: 0.5rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

/* Color Row */
.color-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.625rem 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background-color 0.15s ease;
  font-family: inherit;
}

.color-row:hover {
  background: color-mix(in srgb, var(--fg) 5%, transparent);
}

.color-row.active {
  background: color-mix(in srgb, var(--fg) 10%, transparent);
}

.color-row-name {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--fg);
}

.color-row-swatch {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid var(--fg);
  flex-shrink: 0;
}

/* ============================================
   Navigation Menu Overlay
   ============================================ */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 98; /* Below marquee (99), below header (100) */
  background: var(--bg);
  display: none;
  flex-direction: column;
  justify-content: center;
  padding: 10rem 2rem 2rem; /* Below header + marquee */
}

.nav-overlay.active {
  display: flex;
}

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-link {
  font-size: clamp(2.5rem, 10vw, 8rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1;
  display: inline-block;
  transition: opacity 0.2s ease;
}

.nav-link:hover {
  opacity: 0.6;
  text-decoration: none;
}

/* ============================================
   Main Content
   ============================================ */
.main {
  min-height: 100vh;
  padding-top: 9rem; /* Header (3.5rem) + Marquee (~5.5rem) */
}

/* Hero Section */
.hero {
  min-height: calc(100vh - 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem 1rem;
}

.hero-content {
  max-width: 100%;
}

.hero-title {
  margin-bottom: 2rem;
}

.hero-subtitle {
  font-size: clamp(1rem, 3vw, 1.5rem);
  font-weight: 400;
  max-width: 600px;
  line-height: 1.5;
}

/* CTA Button */
.btn--primary {
  display: inline-block;
  margin-top: 2.5rem;
  padding: 1rem 2rem;
  background: var(--fg);
  color: var(--bg);
  border: 2px solid var(--fg);
  border-radius: 0;
  font-family: monospace;
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--bg);
  color: var(--fg);
  outline: none;
}

/* Accessibility utilities */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Section */
.section {
  padding: 4rem 1rem;
  border-bottom: 1px solid var(--border);
}

.section-header {
  margin-bottom: 3rem;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  opacity: 0.5;
  margin-bottom: 1rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-description {
  max-width: 600px;
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

@media (min-width: 768px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background: var(--bg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-number {
  font-size: 0.75rem;
  font-weight: 700;
  opacity: 0.5;
}

.feature-title {
  font-size: 1.5rem;
}

.feature-description {
  font-size: 0.875rem;
  line-height: 1.6;
  opacity: 0.8;
}

/* Supply Chain Visual */
.chain-visual {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
}

@media (min-width: 768px) {
  .chain-visual {
    flex-direction: row;
  }
}

.chain-node {
  flex: 1;
  padding: 2rem 1rem;
  border-bottom: 1px solid var(--border);
  text-align: center;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

@media (min-width: 768px) {
  .chain-node {
    border-bottom: none;
    border-right: 1px solid var(--border);
  }
  
  .chain-node:last-child {
    border-right: none;
  }
}

.chain-node:hover {
  background: var(--fg);
  color: var(--bg);
}

.chain-node.active {
  background: var(--fg);
  color: var(--bg);
}

.chain-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.chain-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.chain-status {
  font-size: 0.625rem;
  margin-top: 0.5rem;
  opacity: 0.7;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-card {
  background: var(--bg);
  padding: 2rem 1rem;
  text-align: center;
}

.stat-value {
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.6;
}

/* Section Header with Line */
.section-header-line {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.section-header-text {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.section-header-rule {
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* How It Works Section */
.how-it-works-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

@media (min-width: 768px) {
  .how-it-works-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.how-it-works-column {
  background: var(--bg);
  padding: 2rem;
}

.how-it-works-heading {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.how-it-works-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.how-it-works-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.how-it-works-number {
  font-size: 0.875rem;
  font-weight: 400;
  opacity: 0.5;
  flex-shrink: 0;
}

.how-it-works-text {
  font-size: 0.875rem;
  line-height: 1.5;
}

/* ============================================
   Live Trace Demo v4 — Brand Compliant
   ============================================ */
.trace-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.trace-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--fg);
}

/* Outer box */
.demo-box {
  border: 1px solid var(--fg);
  padding: 16px;
}

/* Product ID */
.product-id {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.5;
  margin-bottom: 14px;
}

/* Node bar */
.node-bar {
  display: flex;
  align-items: flex-start;
  margin-bottom: 14px;
}

.node-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  cursor: pointer;
  width: 60px;
}

.node-box {
  width: 36px;
  height: 36px;
  border: 1px solid #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.03em;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  color: #ccc;
}
.node-box.active { background: var(--fg); border-color: var(--fg); color: var(--bg); }
.node-box.done   { border-color: var(--fg); color: var(--fg); }

.node-meta { margin-top: 6px; text-align: center; }
.node-title {
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ccc;
  line-height: 1.3;
}
.node-wrap.active .node-title,
.node-wrap.done .node-title { color: var(--fg); }

.node-loc {
  font-size: 8px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #ccc;
  margin-top: 2px;
}
.node-wrap.active .node-loc,
.node-wrap.done .node-loc { color: var(--fg); opacity: 0.5; }

.node-conn {
  flex: 1;
  height: 1px;
  background: #ccc;
  margin-top: 17px; /* centre on 36px box */
  transition: background 0.3s;
  min-width: 4px;
}
.node-conn.done { background: var(--fg); }

/* Divider */
.demo-divider { height: 1px; background: var(--fg); opacity: 0.1; margin-bottom: 12px; }

/* Stats bar */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-bottom: 0;
}
.stat-label {
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg);
  opacity: 0.4;
  margin-bottom: 3px;
}
.stat-value {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
  text-transform: uppercase;
  transition: opacity 0.3s;
}
.stat-value.pending { opacity: 0.15; }

/* Terminal panel */
.terminal-panel {
  border-top: 1px solid var(--fg);
  margin-top: 12px;
  padding-top: 12px;
  display: none;
}

.term-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 16px;
}

.term-data { grid-column: 1; }
.term-uploader { grid-column: 2; display: flex; align-items: flex-start; }

.tl {
  display: flex;
  align-items: baseline;
  gap: 0;
  opacity: 0;
  transform: translateY(2px);
  transition: opacity 0.08s ease, transform 0.08s ease;
  line-height: 1.7;
}
.tl.in { opacity: 1; transform: translateY(0); }

.tl-k {
  font-size: 10px;
  font-weight: 400;
  color: var(--fg);
  opacity: 0.4;
  flex-shrink: 0;
  width: 160px;
  padding-right: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.tl-v {
  font-size: 10px;
  font-weight: 400;
  color: var(--fg);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.tl-v.hi { font-weight: 700; }
.tl-v.dim { opacity: 0.3; }

.tl-sect {
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0;
  padding: 6px 0 1px;
  transition: opacity 0.08s;
}
.tl-sect.in { opacity: 0.3; }

.tl-break {
  height: 1px;
  background: var(--fg);
  opacity: 0;
  margin: 3px 0;
  transition: opacity 0.08s;
}
.tl-break.in { opacity: 0.08; }

/* Uploader card */
.uploader-card {
  border: 1px solid var(--fg);
  padding: 12px;
  opacity: 0;
  transform: translateY(3px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  width: 100%;
}
.uploader-card.in { opacity: 1; transform: translateY(0); }

.avatar {
  width: 32px;
  height: 32px;
  border: 1px solid var(--fg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  flex-shrink: 0;
}

.uploader-name {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin-bottom: 2px;
}
.uploader-role {
  font-size: 8px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.5;
  margin-bottom: 1px;
}
.uploader-org {
  font-size: 8px;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.4;
  margin-bottom: 8px;
}
.uploader-badge {
  display: inline-block;
  border: 1px solid var(--fg);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 6px;
}

/* Cursor */
.cursor {
  display: inline-block;
  width: 5px;
  height: 10px;
  background: var(--fg);
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* Controls */
.demo-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--fg);
  opacity: 0.15;
}
.ctrl-status {
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-left: auto;
}
.btn-reset {
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--fg);
  background: none;
  color: var(--fg);
  padding: 4px 10px;
  cursor: pointer;
}
.btn-reset:hover { background: var(--fg); color: var(--bg); }

/* ============================================
   Live Trace Demo v4 — Responsive
   ============================================ */
@media (max-width: 991px) {
  .node-wrap { width: 52px; }
  .node-box { width: 32px; height: 32px; font-size: 9px; }
  .node-conn { margin-top: 15px; }
  .node-title { font-size: 7px; }
  .node-loc { display: none; }
  .stat-value { font-size: 14px; }
  .tl-k { width: 130px; }
  .term-grid { grid-template-columns: 1fr; }
  .term-uploader { grid-column: 1; margin-top: 12px; }
  .uploader-card { display: flex; align-items: center; gap: 12px; }
  .avatar { margin-bottom: 0; flex-shrink: 0; }
}

@media (max-width: 767px) {
  .demo-box { padding: 12px; }
  .node-wrap { width: 44px; }
  .node-box { width: 28px; height: 28px; font-size: 8px; }
  .node-conn { margin-top: 13px; }
  .node-title { display: none; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 10px 0; }
  .stat-value { font-size: 18px; }
  .tl-k { width: 110px; font-size: 9px; }
  .tl-v { font-size: 9px; }
  .tl-sect { font-size: 7px; }
  .term-grid { grid-template-columns: 1fr; }
  .term-uploader { grid-column: 1; margin-top: 12px; }
  .uploader-card { display: flex; align-items: center; gap: 10px; }
  .avatar { margin-bottom: 0; }
}

@media (max-width: 479px) {
  .demo-box { padding: 10px; }
  .node-wrap { width: 36px; }
  .node-box { width: 24px; height: 24px; font-size: 7px; }
  .node-conn { margin-top: 11px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 10px 0; }
  .stat-label { font-size: 7px; }
  .stat-value { font-size: 15px; }
  .tl-k { width: 90px; font-size: 8px; }
  .tl-v { font-size: 8px; }
  .uploader-name { font-size: 10px; }
  .uploader-role, .uploader-org, .uploader-badge { font-size: 7px; }
}

/* Regulation List */
.regulation-list {
  display: flex;
  flex-direction: column;
}

.regulation-card {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.regulation-card:last-child {
  border-bottom: 1px solid var(--border);
}

.regulation-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.regulation-code {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}

.regulation-name {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.5;
}

.regulation-description {
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 600px;
}

/* Footer */
.footer {
  padding: 4rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

@media (min-width: 768px) {
  .footer {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}

.footer-brand {
  max-width: 400px;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.footer-description {
  font-size: 0.875rem;
  opacity: 0.7;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-link {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-bottom {
  padding: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  opacity: 0.5;
  text-align: center;
}

/* ============================================
   Crosshair Cursor (Desktop Only)
   ============================================ */

/* Hide default cursor on desktop */
@media (hover: hover) and (min-width: 1000px) {
  body, a, button { cursor: none !important; }
}

/* Crosshair container - oversized so lines always span edge to edge */
#crosshair {
  display: none;
  pointer-events: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 200vw;
  height: 200vh;
  will-change: transform;
  /* Inherit line colour from the current text colour */
  color: inherit;
}

@media (hover: hover) and (min-width: 1000px) {
  #crosshair { display: block; }

  /* Vertical line - sits at horizontal centre of the 200vw container */
  #crosshair::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    width: 1px;
    height: 200vh;
    background: currentColor;
  }

  /* Horizontal line - sits at vertical centre of the 200vh container */
  #crosshair::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    width: 200vw;
    height: 1px;
    background: currentColor;
  }
}

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

/* Mobile adjustments */
@media (max-width: 767px) {
  .marquee-row {
    padding: 0.5rem 0;
  }
  
  .marquee-item {
    font-size: 0.75rem;
  }
  
  .marquee-divider {
    font-size: 0.75rem;
  }
  
  .marquee-section {
    top: 3rem; /* Smaller header on mobile */
  }
  
  .header {
    padding: 0.75rem;
  }
  
  .header-center {
    display: none;
  }
  
  .header-btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.625rem;
  }
  
  .main {
    padding-top: 7.5rem; /* Header (3rem) + Marquee (~4.5rem) */
  }
  
  .visibility-overlay {
    padding-top: 8rem;
  }
  
  .nav-overlay {
    padding-top: 8rem;
  }
  
  .section {
  padding: 3rem 1rem;
  }
  
  .visibility-overlay {
  width: 100%;
  border-left: none;
  }
  }

/* ============================================
   Contact Form
   ============================================ */
.contact-form {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-label {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--fg);
  opacity: 0.5;
}

.contact-input {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  font-weight: 400;
  color: var(--fg);
  background: transparent;
  border: 1px solid var(--fg);
  padding: 12px 14px;
  outline: none;
  width: 100%;
  box-sizing: border-box;
  transition: border-color 0.15s ease, opacity 0.15s ease;
  appearance: none;
  border-radius: 0; /* brutalist - no rounding */
}

.contact-input::placeholder {
  color: var(--fg);
  opacity: 0.3;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.contact-input:focus {
  border-color: var(--fg);
  opacity: 1;
}

.contact-textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-footer {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.contact-submit {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--bg);
  background: var(--fg);
  border: 1px solid var(--fg);
  padding: 12px 28px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.contact-submit:hover {
  background: transparent;
  color: var(--fg);
}

.contact-submit:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.contact-status {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  min-height: 20px;
}

.contact-status.success {
  color: var(--fg);
}

.contact-status.error {
  color: var(--fg);
  opacity: 0.6;
}

/* ============================================
   Waitlist Form - Compact Layout
   ============================================ */
#waitlist-form {
  max-width: 420px;
  gap: 16px;
}

#waitlist-form .contact-input {
  padding: 10px 12px;
  font-size: 13px;
}

#waitlist-form .contact-input::placeholder {
  font-size: 11px;
}

#waitlist-form .contact-label {
  font-size: 10px;
}

#waitlist-form .contact-field {
  gap: 6px;
}

#waitlist-form .contact-footer {
  gap: 16px;
}

#waitlist-form .contact-submit {
  padding: 10px 24px;
}

.waitlist-name-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 600px) {
  #waitlist-form {
    max-width: 100%;
  }

  .waitlist-name-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* Makers landing page — hero CTA support text */
.makers-cta-support {
  margin-top: 0.75rem;
  font-family: monospace;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--fg);
}

.makers-demo-link {
  margin-top: 0.5rem;
  font-size: 0.875rem;
}

.makers-demo-link a {
  color: var(--fg);
  text-underline-offset: 3px;
}