:root{--bg-void: #020c1b;--bg-deep: #050f20;--bg-card: rgba(6, 18, 38, .72);--bg-glass: rgba(0, 229, 255, .04);--cyan: #00e5ff;--cyan-dim: #00b4cc;--cyan-glow: rgba(0, 229, 255, .18);--cyan-glow-lg: rgba(0, 229, 255, .08);--blue-mid: #1a6aff;--blue-deep: #0d3d80;--text-primary: #e8f4fd;--text-secondary: #7ea8c9;--text-muted: #3a5a7a;--border: rgba(0, 229, 255, .12);--border-bright: rgba(0, 229, 255, .35);--radius-sm: 6px;--radius-md: 12px;--radius-lg: 20px;--font-display: "Orbitron", monospace;--font-body: "Syne", sans-serif;--font-mono: "JetBrains Mono", monospace;--nav-h: 72px;--transition: .3s cubic-bezier(.4, 0, .2, 1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg-void);color:var(--text-primary);font-family:var(--font-body);font-weight:400;line-height:1.65;overflow-x:hidden;cursor:none}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}ul{list-style:none}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:var(--bg-void)}::-webkit-scrollbar-thumb{background:var(--cyan-dim);border-radius:2px}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index: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)' 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var(--border-bright);border-radius:var(--radius-sm);color:var(--text-primary);font-family:var(--font-display);font-size:.8rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;transition:background var(--transition),box-shadow var(--transition),transform var(--transition);cursor:none}.btn-secondary:hover{background:var(--cyan-glow);box-shadow:0 0 20px var(--cyan-glow);transform:translateY(-2px)}.divider{width:100%;height:1px;background:linear-gradient(90deg,transparent,var(--border-bright),transparent)}section{position:relative;z-index:1;padding:clamp(4rem,8vw,7rem) clamp(1.5rem,5vw,4rem)}.section-inner{max-width:1100px;margin:0 auto}.section-label{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);margin-bottom:.75rem}.section-label:before{content:"// "}.section-title{font-family:var(--font-display);font-size:clamp(1.8rem,4vw,2.8rem);font-weight:700;line-height:1.15;letter-spacing:-.01em}.section-desc{margin-top:1rem;max-width:560px;font-size:1rem;color:var(--text-secondary);line-height:1.8}.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}.reveal.visible{opacity:1;transform:translateY(0)}.reveal-delay-1{transition-delay:.1s}.reveal-delay-2{transition-delay:.2s}.reveal-delay-3{transition-delay:.3s}.reveal-delay-4{transition-delay:.4s}@keyframes fade-up{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}@keyframes orb-float{0%,to{transform:translate(0) scale(1)}50%{transform:translate(20px,-20px) scale(1.05)}}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.6)}}@keyframes ring-expand{0%{opacity:.5;transform:scale(.85)}to{opacity:0;transform:scale(1)}}@keyframes blink{50%{opacity:0}}nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:100;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(1.5rem,5vw,4rem);background:#020c1bb8;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:background var(--transition)}nav.scrolled{background:#020c1bf2}.nav-logo{display:flex;align-items:center;gap:12px}.nav-logo img{height:36px;width:36px;object-fit:contain;border-radius:20%}.nav-logo-text{font-family:var(--font-display);font-size:1.1rem;font-weight:700;color:var(--cyan);letter-spacing:.05em}.nav-links{display:flex;align-items:center;gap:2rem}.nav-links a{font-size:.8rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--text-secondary);transition:color var(--transition)}.nav-links a:hover,.nav-links a.active{color:var(--cyan)}.nav-cta{padding:.45rem 1.2rem!important;border:1px solid var(--border-bright)!important;border-radius:var(--radius-sm);color:var(--cyan)!important;font-family:var(--font-display);font-size:.72rem!important;letter-spacing:.1em;transition:background var(--transition),box-shadow var(--transition)!important}.nav-cta:hover{background:var(--cyan-glow)!important;box-shadow:0 0 20px var(--cyan-glow)!important}.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:none;padding:4px}.hamburger span{display:block;width:24px;height:2px;background:var(--cyan);border-radius:2px;transition:transform .3s,opacity .3s}.mobile-nav{display:none;position:fixed;top:var(--nav-h);left:0;right:0;bottom:0;background:#020c1bf7;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:99;padding:2rem;flex-direction:column;gap:1.5rem;border-top:1px solid var(--border)}.mobile-nav.open{display:flex}.mobile-nav a{font-family:var(--font-display);font-size:1.1rem;color:var(--text-secondary);letter-spacing:.08em;padding:.75rem 0;border-bottom:1px solid var(--border);transition:color var(--transition)}.mobile-nav a:hover{color:var(--cyan)}#hero{position:relative;min-height:100svh;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:calc(var(--nav-h) + 2rem) clamp(1.5rem,5vw,4rem) 4rem}.hero-grid-bg{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;background-image:linear-gradient(rgba(0,229,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(0,229,255,.04) 1px,transparent 1px);background-size:60px 60px;-webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 50%,black 30%,transparent 100%);mask-image:radial-gradient(ellipse 80% 60% at 50% 50%,black 30%,transparent 100%)}.hero-orb{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none;z-index:0}.hero-orb-1{width:600px;height:600px;background:radial-gradient(circle,rgba(0,229,255,.12) 0%,transparent 70%);top:-10%;left:-10%;animation:orb-float 8s ease-in-out infinite}.hero-orb-2{width:500px;height:500px;background:radial-gradient(circle,rgba(26,106,255,.1) 0%,transparent 70%);bottom:-5%;right:-5%;animation:orb-float 10s ease-in-out infinite reverse}.hero-inner{position:relative;z-index:1;max-width:900px;text-align:center}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:.4rem 1rem;border:1px solid var(--border-bright);border-radius:100px;background:var(--bg-glass);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);font-family:var(--font-mono);font-size:.72rem;letter-spacing:.12em;color:var(--cyan);text-transform:uppercase;margin-bottom:2rem;animation:fade-up .8s ease both}.hero-badge-dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan);animation:pulse-dot 2s ease-in-out infinite}.hero-h1{font-family:var(--font-display);font-size:clamp(2.6rem,7vw,5.5rem);font-weight:900;line-height:1.05;letter-spacing:-.02em;animation:fade-up .9s .1s ease both}.hero-h1 .accent{color:var(--cyan)}.hero-h1 .glow-text{text-shadow:0 0 40px rgba(0,229,255,.4),0 0 80px rgba(0,229,255,.15)}.hero-sub{margin:1.5rem auto 2.5rem;max-width:600px;font-size:clamp(1rem,2.2vw,1.15rem);color:var(--text-secondary);font-weight:300;line-height:1.75;animation:fade-up 1s .2s ease both}.hero-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;animation:fade-up 1s .35s ease both}.hero-stats{display:flex;justify-content:center;gap:3rem;flex-wrap:wrap;margin-top:4rem;padding-top:2.5rem;border-top:1px solid var(--border);animation:fade-up 1s .5s ease both}.stat-item{text-align:center}.stat-num{font-family:var(--font-display);font-size:1.8rem;font-weight:900;color:var(--cyan);text-shadow:0 0 20px rgba(0,229,255,.4);display:block}.stat-label{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);margin-top:4px}#particle-canvas{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none}#overview{background:var(--bg-deep)}.overview-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;margin-top:3.5rem}.overview-text p{color:var(--text-secondary);line-height:1.9;margin-bottom:1rem;font-size:.975rem}.overview-text p strong{color:var(--text-primary);font-weight:600}.overview-visual{position:relative;display:flex;align-items:center;justify-content:center}.phone-mockup{position:relative;width:200px;background:linear-gradient(145deg,#0d2040,#061020);border:1px solid var(--border-bright);border-radius:28px;padding:8px;box-shadow:0 0 60px #00e5ff1f,0 40px 80px #0009,inset 0 0 0 1px #ffffff0d}.phone-screen{background:linear-gradient(180deg,#020c1b,#061428);border-radius:22px;padding:1.5rem 1rem;min-height:340px;display:flex;flex-direction:column;align-items:center;gap:.75rem;position:relative;overflow:hidden}.phone-screen:before{content:"";position:absolute;top:0;left:50%;transform:translate(-50%);width:80px;height:6px;background:#000;border-radius:0 0 8px 8px}.phone-logo{width:48px;height:48px;margin-top:16px;border-radius:20%}.phone-os-name{font-family:var(--font-display);font-size:.75rem;color:var(--cyan);letter-spacing:.15em}.phone-line{width:100%;height:1px;background:var(--border);margin:4px 0}.phone-stat{width:100%;display:flex;justify-content:space-between;align-items:center;font-family:var(--font-mono);font-size:.6rem;color:var(--text-muted);padding:0 4px}.phone-stat .val{color:var(--cyan)}.phone-badge{width:calc(100% - 8px);padding:6px 8px;background:#00e5ff0f;border:1px solid var(--border);border-radius:8px;font-family:var(--font-mono);font-size:.55rem;color:var(--text-secondary);text-align:left;line-height:1.5}.phone-badge .badge-title{color:var(--cyan);font-weight:600}.pulse-ring{position:absolute;border-radius:50%;border:1px solid rgba(0,229,255,.2);animation:ring-expand 3s ease-out infinite}.pulse-ring:nth-child(1){width:280px;height:280px;animation-delay:0s}.pulse-ring:nth-child(2){width:380px;height:380px;animation-delay:1s}.pulse-ring:nth-child(3){width:480px;height:480px;animation-delay:2s}#pillars{background:var(--bg-void)}.pillars-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5px;margin-top:3.5rem;border:1.5px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;background:var(--border)}.pillar-card{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:2.5rem 2rem;position:relative;overflow:hidden;transition:background var(--transition)}.pillar-card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;background:linear-gradient(135deg,var(--cyan-glow) 0%,transparent 60%);transition:opacity var(--transition)}.pillar-card:hover:before{opacity:1}.pillar-card:hover{background:#00e5ff08}.pillar-icon{width:48px;height:48px;margin-bottom:1.25rem;position:relative;z-index:1}.pillar-icon svg{width:100%;height:100%}.pillar-title{font-family:var(--font-display);font-size:.95rem;font-weight:700;letter-spacing:.05em;color:var(--text-primary);margin-bottom:.75rem;position:relative;z-index:1}.pillar-desc{font-size:.875rem;color:var(--text-secondary);line-height:1.75;position:relative;z-index:1}.pillar-num{position:absolute;bottom:1.5rem;right:1.5rem;font-family:var(--font-display);font-size:3rem;font-weight:900;color:#00e5ff0a;line-height:1;-webkit-user-select:none;user-select:none}#zethra-ai{background:var(--bg-deep);overflow:hidden}.ai-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:4rem;align-items:center;margin-top:3.5rem}.ai-steps{display:flex;flex-direction:column;gap:0}.ai-step{display:flex;gap:1.5rem;padding:1.5rem 0;border-bottom:1px solid var(--border)}.ai-step:last-child{border-bottom:none}.step-num{flex-shrink:0;width:36px;height:36px;border:1px solid var(--border-bright);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:.72rem;color:var(--cyan);margin-top:2px}.step-content h4{font-family:var(--font-display);font-size:.9rem;font-weight:600;letter-spacing:.04em;color:var(--text-primary);margin-bottom:.4rem}.step-content p{font-size:.86rem;color:var(--text-secondary);line-height:1.7}.ai-terminal{background:#060f1e;border:1px solid var(--border-bright);border-radius:var(--radius-md);overflow:hidden;box-shadow:0 0 60px #00e5ff14,0 40px 60px #00000080}.terminal-bar{display:flex;align-items:center;gap:6px;padding:.75rem 1rem;background:#00e5ff0a;border-bottom:1px solid var(--border)}.t-dot{width:10px;height:10px;border-radius:50%}.t-dot-r{background:#ff5f57}.t-dot-y{background:#febc2e}.t-dot-g{background:#28c840}.terminal-title{font-family:var(--font-mono);font-size:.7rem;color:var(--text-muted);margin-left:8px}.terminal-body{padding:1.25rem;font-family:var(--font-mono);font-size:.75rem;line-height:2;color:var(--text-secondary);min-height:320px}.t-line{display:flex;flex-direction:column;gap:0}.t-prompt:before{content:"$ ";color:var(--cyan)}.t-out{color:#4a8;padding-left:1em}.t-warn{color:#fa3;padding-left:1em}.t-info{color:var(--cyan);padding-left:1em}.t-dim{color:var(--text-muted);padding-left:1em}.t-blink:after{content:"█";color:var(--cyan);animation:blink 1.1s steps(1) infinite}#architecture{background:var(--bg-void)}.arch-stack{margin-top:3.5rem;display:flex;flex-direction:column;gap:0;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;max-width:700px}.arch-layer{display:flex;align-items:center;padding:1.25rem 2rem;gap:1.5rem;border-bottom:1px solid var(--border);position:relative;transition:background var(--transition)}.arch-layer:last-child{border-bottom:none}.arch-layer:hover{background:var(--bg-glass)}.arch-layer-tag{font-family:var(--font-mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;padding:3px 10px;border-radius:100px;flex-shrink:0;min-width:90px;text-align:center}.tag-ai{background:#00e5ff1a;color:var(--cyan);border:1px solid rgba(0,229,255,.25)}.tag-rust{background:#ff64001a;color:#f80;border:1px solid rgba(255,100,0,.25)}.tag-priv{background:#64ff641a;color:#4f4;border:1px solid rgba(100,255,100,.25)}.tag-kernel{background:#1a6aff1f;color:#6af;border:1px solid rgba(26,106,255,.3)}.tag-open{background:#b464ff1a;color:#b8f;border:1px solid rgba(180,100,255,.25)}.arch-layer-name{font-family:var(--font-display);font-size:.9rem;font-weight:600;color:var(--text-primary)}.arch-layer-detail{font-size:.82rem;color:var(--text-muted);margin-left:auto;text-align:right;font-family:var(--font-mono)}#open-source{background:var(--bg-deep)}.oss-card{margin-top:3rem;border:1px solid var(--border-bright);border-radius:var(--radius-lg);background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:3rem;display:flex;gap:3rem;align-items:center;flex-wrap:wrap;position:relative;overflow:hidden}.oss-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--cyan),var(--blue-mid),transparent)}.oss-card:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse 60% 80% at 80% 50%,rgba(0,229,255,.04) 0%,transparent 70%);pointer-events:none}.oss-info{flex:1;min-width:260px}.oss-info h3{font-family:var(--font-display);font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:.75rem}.oss-info p{font-size:.925rem;color:var(--text-secondary);line-height:1.8}.oss-links{display:flex;flex-direction:column;gap:.75rem;min-width:200px}.oss-link{display:flex;align-items:center;gap:10px;padding:.75rem 1.25rem;border:1px solid var(--border);border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:.8rem;color:var(--text-secondary);transition:border-color var(--transition),color var(--transition),background var(--transition)}.oss-link:hover{border-color:var(--border-bright);color:var(--cyan);background:var(--bg-glass)}.oss-link svg{width:18px;height:18px;flex-shrink:0}.oss-license{font-family:var(--font-mono);font-size:.7rem;color:var(--text-muted);margin-top:.5rem;letter-spacing:.05em}#cta{background:linear-gradient(135deg,#00e5ff0f,#1a6aff0f);border-top:1px solid var(--border);border-bottom:1px solid var(--border);text-align:center}.cta-inner{max-width:700px;margin:0 auto}#cta h2{font-family:var(--font-display);font-size:clamp(1.8rem,4vw,2.8rem);font-weight:900;line-height:1.1;margin-bottom:1rem}#cta p{font-size:1rem;color:var(--text-secondary);margin-bottom:2rem;max-width:480px;margin-left:auto;margin-right:auto}.cta-btns{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}footer{background:var(--bg-void);border-top:1px solid var(--border);padding:3rem clamp(1.5rem,5vw,4rem) 2rem}.footer-inner{max-width:1100px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:2rem}.footer-brand{display:flex;align-items:center;gap:12px}.footer-brand img{height:30px;width:30px;border-radius:20%}.footer-brand-text{font-family:var(--font-display);font-size:.95rem;font-weight:700;color:var(--cyan)}.footer-brand-sub{font-family:var(--font-mono);font-size:.65rem;color:var(--text-muted);letter-spacing:.05em}.footer-links{display:flex;gap:2rem;flex-wrap:wrap}.footer-links a{font-size:.8rem;color:var(--text-muted);transition:color var(--transition)}.footer-links a:hover{color:var(--cyan)}.footer-copy{font-family:var(--font-mono);font-size:.68rem;color:var(--text-muted);width:100%;text-align:center;padding-top:2rem;border-top:1px solid var(--border);margin-top:1rem}.footer-copy span{color:var(--cyan)}.events-hero{min-height:50vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:calc(var(--nav-h) + 4rem) clamp(1.5rem,5vw,4rem) 4rem;position:relative;background:var(--bg-void);overflow:hidden}.events-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-top:3rem}.event-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:2rem;position:relative;overflow:hidden;transition:border-color var(--transition),transform var(--transition)}.event-card:hover{border-color:var(--border-bright);transform:translateY(-4px)}.event-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);opacity:0;transition:opacity var(--transition)}.event-card:hover:before{opacity:1}.event-tag{font-family:var(--font-mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;padding:3px 10px;border-radius:100px;display:inline-block;margin-bottom:1rem;background:#00e5ff1a;color:var(--cyan);border:1px solid rgba(0,229,255,.25)}.event-title{font-family:var(--font-display);font-size:1.1rem;font-weight:700;color:var(--text-primary);margin-bottom:.5rem}.event-meta{font-family:var(--font-mono);font-size:.75rem;color:var(--text-muted);margin-bottom:1rem}.event-desc{font-size:.9rem;color:var(--text-secondary);line-height:1.7;margin-bottom:1.5rem}@media (max-width: 900px){.nav-links{display:none}.hamburger{display:flex}.overview-grid{grid-template-columns:1fr}.overview-visual{order:-1}.ai-grid{grid-template-columns:1fr}.arch-layer-detail{display:none}}@media (max-width: 600px){.hero-stats{gap:2rem}.oss-card{padding:2rem}.pillar-card{padding:1.75rem 1.5rem}}