:root{--bg-deep: #07090d;--bg-surface: #0e121a;--bg-card: #151a26;--bg-card-hover: #1e2436;--bg-glass: rgba(14, 18, 26, .75);--border-dim: rgba(255, 255, 255, .08);--border-light: rgba(255, 255, 255, .15);--border-cyan: rgba(0, 240, 255, .3);--accent-cyan: #00f0ff;--accent-blue: #38bdf8;--accent-steel: #cbd5e1;--accent-emerald: #10b981;--accent-amber: #f59e0b;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--text-cyan: #38bdf8;--steel-gradient: linear-gradient(135deg, #ffffff 0%, #cbd5e1 45%, #64748b 85%, #475569 100%);--steel-border-gradient: linear-gradient(135deg, rgba(255, 255, 255, .4) 0%, rgba(148, 163, 184, .2) 50%, rgba(255, 255, 255, .1) 100%);--cyan-glow: 0 0 25px rgba(0, 240, 255, .25);--card-shadow: 0 20px 40px -15px rgba(0, 0, 0, .7);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-heading: "Space Grotesk", var(--font-sans);--font-mono: "JetBrains Mono", monospace;--transition-fast: .2s cubic-bezier(.16, 1, .3, 1);--transition-normal: .4s cubic-bezier(.16, 1, .3, 1);--transition-slow: .7s cubic-bezier(.16, 1, .3, 1)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;color-scheme:dark;background-color:var(--bg-deep)}body{font-family:var(--font-sans);background-color:var(--bg-deep);color:var(--text-primary);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.cad-grid-bg{background-size:40px 40px;background-image:linear-gradient(to right,rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.03) 1px,transparent 1px)}.cad-crosshairs{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;background-image:radial-gradient(circle,rgba(0,240,255,.15) 1px,transparent 1px);background-size:80px 80px}h1,h2,h3,h4,.font-heading{font-family:var(--font-heading);letter-spacing:-.03em;line-height:1.15}.steel-text{background:var(--steel-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.cyan-text{color:var(--accent-cyan)}.mono-tag{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-cyan)}.glass-panel{background:var(--bg-glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-dim);border-radius:12px}.glass-panel-interactive{background:var(--bg-glass);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border-dim);border-radius:12px;transition:all var(--transition-normal)}.glass-panel-interactive:hover{border-color:var(--border-cyan);box-shadow:var(--cyan-glow);transform:translateY(-2px)}.btn-primary{display:inline-flex;align-items:center;gap:.75rem;padding:.9rem 1.8rem;background:linear-gradient(135deg,#fff,#cbd5e1);color:#07090d;font-family:var(--font-heading);font-weight:700;font-size:.95rem;letter-spacing:.02em;border-radius:6px;border:none;cursor:pointer;transition:all var(--transition-fast);text-decoration:none;box-shadow:0 4px 14px #ffffff26}.btn-primary:hover{background:#fff;transform:translateY(-2px);box-shadow:0 6px 20px #ffffff4d}.btn-secondary{display:inline-flex;align-items:center;gap:.75rem;padding:.9rem 1.8rem;background:#ffffff0d;color:var(--text-primary);font-family:var(--font-heading);font-weight:600;font-size:.95rem;border-radius:6px;border:1px solid var(--border-light);cursor:pointer;transition:all var(--transition-fast);text-decoration:none}.btn-secondary:hover{background:#ffffff1a;border-color:var(--accent-cyan);color:var(--accent-cyan);transform:translateY(-2px)}.container{max-width:1280px;margin:0 auto;padding:0 1.5rem}.section-padding{padding:6rem 0}.full-viewport-section{min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:5rem 0;box-sizing:border-box}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-deep)}::-webkit-scrollbar-thumb{background:#1e293b;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#334155}@keyframes pulseGlow{0%,to{opacity:.4}50%{opacity:.8}}.pulse-glow{animation:pulseGlow 3s infinite ease-in-out}@keyframes floatAnim{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.float-anim{animation:floatAnim 6s ease-in-out infinite}.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:1.25rem 0;transition:all var(--transition-fast);background:#07090d99;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.05)}.site-header.scrolled{padding:.85rem 0;background:#07090deb;border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 10px 30px #00000080}.nav-logo{display:flex;align-items:center;gap:.75rem;font-family:var(--font-heading);font-weight:800;font-size:1.35rem;letter-spacing:-.04em;color:var(--text-primary);text-decoration:none}.nav-links{display:flex;align-items:center;gap:2rem;list-style:none}.nav-link{color:var(--text-secondary);text-decoration:none;font-weight:500;font-size:.9rem;transition:color var(--transition-fast)}.nav-link:hover,.nav-link.active{color:var(--text-primary)}.reveal-controls{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;background:#0e121ad9;border:1px solid var(--border-light);padding:1rem 1.5rem;border-radius:8px;margin-top:1.5rem}.layer-step-btn{background:#ffffff0a;border:1px solid var(--border-dim);color:var(--text-secondary);padding:.5rem 1rem;border-radius:4px;cursor:pointer;font-size:.85rem;font-family:var(--font-mono);transition:all var(--transition-fast)}.layer-step-btn.active,.layer-step-btn:hover{background:#00f0ff1a;border-color:var(--accent-cyan);color:var(--accent-cyan)}.stage-card{position:relative;padding:2rem;background:var(--bg-card);border:1px solid var(--border-dim);border-radius:8px;transition:all var(--transition-normal);overflow:hidden}.stage-card:before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:var(--text-muted);transition:background var(--transition-fast)}.stage-card.active:before,.stage-card:hover:before{background:var(--accent-cyan)}.stage-card.active,.stage-card:hover{border-color:var(--border-cyan);background:var(--bg-card-hover);transform:translateY(-4px)}.timeline-comparison{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin-top:2.5rem}@media (max-width: 992px){.desktop-nav{display:none!important}.mobile-toggle{display:flex!important}.timeline-comparison{grid-template-columns:1fr!important}.section-padding{padding:4rem 0!important}.modal-content{padding:1.5rem!important}}.timeline-column{background:var(--bg-card);border:1px solid var(--border-dim);border-radius:12px;padding:2rem}.timeline-step{display:flex;align-items:center;gap:1rem;padding:.75rem 1rem;margin-bottom:.5rem;background:#ffffff05;border-radius:6px;font-size:.9rem}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:2000;background:#000000d9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:center;padding:2rem}.modal-content{background:var(--bg-surface);border:1px solid var(--border-cyan);box-shadow:var(--cyan-glow);width:100%;max-width:800px;max-height:90vh;overflow-y:auto;border-radius:12px;padding:2.5rem;position:relative}.close-modal-btn{position:absolute;top:1.5rem;right:1.5rem;background:#ffffff14;border:none;color:var(--text-secondary);width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast)}.close-modal-btn:hover{background:#fff3;color:#fff}