:root {
    --ink: #0f0818;
    --bone: #faf9f6;
    --rust: #883CF0;
    --chrome: #e2e9ee;
    --grid: rgba(149, 10, 200, 0.08);
  }

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

  html { scroll-behavior: smooth; }

  .builddemos {
    background: #191127;
    color: var(--bone);
    overflow-x: hidden;
    cursor: none;
    position: relative;
    height: 100vh;
  }

  /* CUSTOM CURSOR */
  #cursor {
    width: 12px; height: 12px;
    background: var(--rust);
    border-radius: 50%;
    z-index:2;
    position: fixed; top: 0; left: 0;
    pointer-events: none;
    transform: translate(-50%,-50%);
    transition: transform 0.1s, width 0.2s, height 0.2s, background 0.2s;
    mix-blend-mode: exclusion;
  }
  #cursor-ring {
    width: 36px; height: 36px;
    z-index:2;
    border: 1px solid var(--rust);
    border-radius: 50%;
    position: fixed; top: 0; left: 0;
    pointer-events: none; 
    transform: translate(-50%,-50%);
    transition: transform 0.15s ease-out, width 0.2s, height 0.2s, border-color 0.2s;
    opacity: 0.6;
  }

  .builddemos:hover #cursor { opacity: 1; }

  /* NOISE OVERLAY */
  .builddemos::before {
    content: '';
    position: absolute; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none; opacity: 0.4;
  }

  /* GRID BACKGROUND */
  .grid-bg {
    position: absolute; inset: 0;
    background-image:
      linear-gradient(var(--grid) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, rgb(47, 34, 45) 20%, transparent 100%);
  }

  /* HEADER */
  .builddemos header {
    position: sticky; top: 0; left: 0; right: 0; z-index: 1;
    padding: 20px 48px;
    display: flex; align-items: center; justify-content: space-between;
    border-bottom: 1px solid #3a1c63;
    background: #180f26;
    backdrop-filter: blur(12px);
  }

  .logo {
    
    font-size: 28px;
    
    color: var(--bone);
  }
  .logo span { color: var(--rust); }

  .builddemos nav { display: flex; gap: 32px; }
  .builddemos nav a {
    
    font-size: 11px;
   
    color: var(--chrome);
    text-decoration: none;
    text-transform: uppercase;
    transition: color 0.2s;
  }
  .builddemos nav a:hover { color: var(--rust); }

  .cta-btn {
    
    font-size: 11px;
   
    text-transform: uppercase;
    padding: 10px 24px;
    border: 1px solid var(--rust);
    color: var(--rust);
    background: transparent;
    cursor: none;
    transition: all 0.2s;
  }
  .cta-btn:hover { background: var(--rust); color: var(--bone); }

  /* SECTIONS */
  .builddemos section { position: relative; }

  /* ── HERO ── */
  #hero {
    min-height: 100vh;
    display: flex; flex-direction: column;
    justify-content: flex-end;
    padding: 0 48px 80px;
    overflow: hidden;
  }

  .hero-canvas {
    position: absolute; inset: 0; 
  }

  .hero-content { position: relative; max-width: 900px; }

  .hero-label {
    
    font-size: 11px;
    
    color: var(--rust);
    text-transform: uppercase;
    margin-bottom: 20px;
    opacity: 0; animation: fadeUp 0.8s 0.3s forwards;
  }

  .builddemos h1 {
    
    font-size: clamp(62px, 7vw, 108px);
    line-height: 0.92;
    color: var(--bone);
    opacity: 0; animation: fadeUp 0.8s 0.5s forwards;
  }
  
  .builddemos h1 em { color: var(--rust); font-style: normal; }

  .hero-sub {
    margin-top: 32px;
    font-size: 18px;
    font-weight: 300;
    color: var(--chrome);
    max-width: 520px;
    line-height: 1.6;
    opacity: 0; animation: fadeUp 0.8s 0.7s forwards;
  }

  .hero-actions {
    margin-top: 48px;
    display: flex; gap: 20px; align-items: center;
    opacity: 0; animation: fadeUp 0.8s 0.9s forwards;
  }

  .btn-primary {
    font-size: 12px;
    text-transform: uppercase;
    padding: 16px 40px;
    background: var(--rust);
    color: var(--bone);
    border: none;
    cursor: none;
    transition: all 0.2s;
    position: relative; overflow: hidden;
  }

  .btn-primary:hover { transform: translateX(0);  background: #883cf0e0; color:#fff;}
  .btn-primary span { position: relative; }

  .btn-ghost {
    
    font-size: 12px;
   
    text-transform: uppercase;
    color: var(--chrome);
    background: none; border: none;
    cursor: none;
    display: flex; align-items: center; gap: 8px;
    transition: color 0.2s;
  }
  .btn-ghost:hover { color: var(--bone); }
  .btn-ghost::after { content: '→'; transition: transform 0.2s; }
  .btn-ghost:hover::after { transform: translateX(6px); }

  /* STATS TICKER */
  .ticker-wrap {
    border-top: 1px solid #3a1c63;
    border-bottom: 1px solid #3a1c63;
    padding: 16px 0;
    overflow: hidden;
    background: #23133a;
  }
  .ticker {
    display: flex; gap: 80px;
    animation: ticker 20s linear infinite;
    white-space: nowrap;
  }
  .ticker-item {
    
    font-size: 11px;
    text-transform: uppercase;
    color: var(--chrome);
    display: flex; align-items: center; gap: 16px;
  }
  .ticker-item .dot { width: 6px; height: 6px; background: var(--rust); border-radius: 50%; }

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

  /* ── HOW IT WORKS ── */
  #process {
    padding: 120px 48px;
    overflow: hidden;
  }

  .section-header {
    display: flex; align-items: flex-end; justify-content: space-between;
    margin-bottom: 80px;
    border-bottom: 1px solid #3a1c63;
    padding-bottom: 32px;
  }

  .section-label {
    
    font-size: 10px;
    
    color: var(--rust);
    text-transform: uppercase;
    margin-bottom: 12px;
  }

  .builddemos h2 {
    
    font-size: clamp(48px, 6vw, 88px);
    color: var(--bone);
    line-height: 0.95;
  }

  .steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border: 1px solid #3a1c63;
  }

  .step {
    padding: 48px 36px;
    border-right: 1px solid #3a1c63;
    position: relative;
    cursor: none;
    transition: background 0.3s;
  }
  .step:last-child { border-right: none; }
  .step:hover { background: #1f1232; }

  .step-num {
    
    font-size: 72px;
    color: rgba(255,255,255,0.04);
    line-height: 1;
    position: absolute; top: 16px; right: 24px;
    transition: color 0.3s;
  }
  .step:hover .step-num { color: #883CF0; }

  .step-icon {
    width: 48px; height: 48px;
    border: 1px solid var(--rust);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 28px;
    color: var(--rust);
    font-size: 20px;
    transition: all 0.3s;
  }
  .step:hover .step-icon { background: var(--rust); color: var(--bone); }

  .step h3 {
    
    font-size: 28px;
    margin-bottom: 12px;
    color: var(--bone);
  }

  .step p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--chrome);
    font-weight: 300;
  }

  /* ── INTERACTIVE PRINT SIM ── */
  #simulator {
    padding: 120px 48px;
    background: linear-gradient(180deg, transparent 0%, #23133a 50%, transparent 100%);
  }

  .sim-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
  }

  .sim-panel {
    border: 1px solid #3a1c63;
    background: #23133a;
    padding: 40px;
  }

  .sim-screen {
    width: 100%;
    aspect-ratio: 4/3;
    background: #060810;
    border: 1px solid #3a1c63;
    position: relative;
    overflow: hidden;
    margin-bottom: 32px;
  }

  .builddemos canvas#printCanvas { display: block; width: 100%; height: 100%; }

  .sim-controls { display: flex; flex-direction: column; gap: 20px; }

  .control-row {
    display: flex; align-items: center; gap: 16px;
  }

  .control-label {
    
    font-size: 10px;
   
    text-transform: uppercase;
    color: var(--chrome);
    width: 100px;
    flex-shrink: 0;
  }

  input[type="range"] {
    flex: 1;
    height: 2px;
    background: #1f1232;
    outline: none;
    cursor: none;
  }
  input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px; height: 14px;
    background: var(--rust);
    border-radius: 50%;
    cursor: none;
  }

  .control-val {
    
    font-size: 11px;
    color: var(--rust);
    width: 40px;
    text-align: right;
  }

  .sim-status {
    display: flex; align-items: center; gap: 10px;
    
    font-size: 11px;
    color: var(--chrome);
    margin-top: 8px;
  }
  .status-dot {
    width: 8px; height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s infinite;
  }

  @keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }

  .sim-info h3 {
    
    font-size: 52px;
    margin-bottom: 20px;
  }

  .sim-info p {
    font-size: 15px;
    line-height: 1.75;
    color: var(--chrome);
    margin-bottom: 32px;
  }

  .metric-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: #23133a;
    border: 1px solid #3a1c63;
    margin-top: 40px;
  }
  .metric {
    padding: 24px 20px;
    background: #2a1647;
    text-align: center;
  }
  .metric-val {
    
    font-size: 40px;
    color: var(--rust);
  }
  .metric-label {
    
    font-size: 9px;
   
    color: var(--chrome);
    text-transform: uppercase;
    margin-top: 4px;
  }

  /* ── INDUSTRIES ── */
  #industries {
    padding: 120px 48px;
  }

  .industry-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: #2a1647;
    border: 1px solid #3a1c63;
    margin-top: 64px;
  }

  .industry-card {
    background: #23133a;
    padding: 48px 36px;
    cursor: none;
    position: relative;
    overflow: hidden;
    transition: background 0.3s;
  }
  .industry-card::before {
    content: '';
    position: absolute; bottom: 0; left: 0; right: 0;
    height: 2px;
    background: var(--rust);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s;
  }
  .industry-card:hover { background: #1f1232; }
  .industry-card:hover::before { transform: scaleX(1); }

  .industry-tag {
    
    font-size: 9px;
    text-transform: uppercase;
    color: var(--rust);
    margin-bottom: 16px;
  }

  .industry-card h3 {
    
    font-size: 38px;
    margin-bottom: 16px;
  }

  .industry-card p {
    font-size: 13px;
    line-height: 1.7;
    color: var(--chrome);
  }

  .industry-img {
    width: 100%;
    height: 160px;
    margin-top: 28px;
    overflow: hidden;
    position: relative;
  }

  .industry-visual {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    
    font-size: 80px;
    color: rgba(255,255,255,0.04);
    background: linear-gradient(135deg, #23133a9f, transparent);
    border: 1px solid #3a1c63;
   
  }

  /* ── FEATURES SCROLLING ── */
  #features {
    padding: 120px 0;
    overflow: hidden;
  }

  .features-header { padding: 0 48px; margin-bottom: 64px; }

  .features-scroll {
    display: flex;
    gap: 24px;
    padding: 0 48px;
    animation: featScroll 30s linear infinite;
    width: max-content;
  }
  .features-scroll:hover { animation-play-state: paused; }

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

  .feat-card {
    width: 320px;
    flex-shrink: 0;
    border: 1px solid #3a1c63;
    padding: 36px;
    background: #23133a;
    cursor: none;
    transition: border-color 0.3s, background 0.3s;
  }
  .feat-card:hover {
    border-color: var(--rust);
    background: #1f1232;
  }

  .feat-icon {
    font-size: 28px;
    margin-bottom: 20px;
  }

  .feat-card h4 {
    
    font-size: 26px;
    margin-bottom: 12px;
  }

  .feat-card p {
    font-size: 13px;
    color: var(--chrome);
    line-height: 1.6;
  }

  /* ── TESTIMONIALS ── */
  #testimonials {
    padding: 120px 48px;
    background: #2a1647;
  }

  .testimonial-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: #23133a;
    margin-top: 64px;
  }

  .testimonial {
    background: #23133a;
    padding: 48px;
    position: relative;
    cursor: none;
    transition: background 0.3s;
  }
  .testimonial:hover { background: #1f1232; }

  .testimonial-quote {
    font-size: 15px;
    line-height: 1.8;
    color: var(--bone);
    margin-bottom: 32px;
    font-style: italic;
    font-weight: 300;
  }

  .testimonial-author {
    display: flex; align-items: center; gap: 16px;
  }

  .author-avatar {
    width: 44px; height: 44px;
    border: 1px solid var(--rust);
    display: flex; align-items: center; justify-content: center;
    
    font-size: 18px;
    color: var(--rust);
    flex-shrink: 0;
  }

  .author-name {
    
    font-size: 11px;
    font-weight: 700;
    color: var(--bone);
  }
  .author-title {
    
    font-size: 10px;
    color: var(--chrome);
    margin-top: 4px;
  }

  .testimonial-mark {
    position: absolute; top: 32px; right: 40px;
    
    font-size: 80px;
    color: rgba(200, 10, 194, 0.08);
    line-height: 1;
  }

  /* ── CTA SECTION ── */
  #cta {
    padding: 140px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  #cta::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(200, 10, 200, 0.12) 0%, transparent 70%);
    transform: translate(-50%,-50%);
    pointer-events: none;
  }

  #cta h2 {
    font-size: clamp(60px, 8vw, 120px);
    margin-bottom: 24px;
  }

  #cta p {
    font-size: 17px;
    color: var(--chrome);
    margin-bottom: 48px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
  }

  .cta-actions {
    display: flex; gap: 20px; justify-content: center; align-items: center;
  }

  /* FOOTER */
  .builddemos footer {
    border-top: 1px solid #3a1c63;
    padding: 40px 48px;
    display: flex; align-items: center; justify-content: space-between;
  }

  .footer-logo {
    
    font-size: 22px;
    
    color: rgba(255, 255, 255, 0.938);
  }
  .footer-logo span { color: var(--rust); }

  .footer-copy {
    
    font-size: 10px;
    color: rgba(255, 255, 255, 0.691);
  }

  /* ANIMATIONS */
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .reveal {
    opacity: 0; transform: translateY(40px);
    transition: opacity 0.7s, transform 0.7s;
  }
  .reveal.visible {
    opacity: 1; transform: translateY(0);
  }

  /* SCROLLBAR */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: #873cf015; }
::-webkit-scrollbar-thumb { background: #873cf015; border-radius: 3px; }

  @media (max-width: 768px) {
    .builddemos header { padding: 16px 24px; }
    .builddemos nav { display: none; }
    #hero, #process, #simulator, #industries, #testimonials, #cta, .builddemos footer { padding-left: 24px; padding-right: 24px; }
    .steps-grid, .sim-container, .industry-grid, .testimonial-grid { grid-template-columns: 1fr; }
    .section-header { flex-direction: column; align-items: flex-start; gap: 16px; }
    .metric-row { grid-template-columns: 1fr; }
  }