@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap");:root{--bg-primary:#030712;--bg-secondary:#0b0f19;--bg-tertiary:#111827;--glass-bg:rgba(17,24,39,0.7);--glass-border:rgba(255,255,255,0.08);--text-primary:#f3f4f6;--text-secondary:#9ca3af;--text-tertiary:#6b7280;--primary:#8b5cf6;--primary-glow:rgba(139,92,246,0.5);--secondary:#06b6d4;--secondary-glow:rgba(6,182,212,0.5);--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--card-shadow:0 8px 32px 0 rgba(0,0,0,0.37);--neon-shadow:0 0 15px rgba(139,92,246,0.3);--font-sans:"Plus Jakarta Sans",sans-serif;--font-mono:"Space Grotesk",sans-serif}[data-theme=light]{--bg-primary:#f3f4f6;--bg-secondary:#ffffff;--bg-tertiary:#e5e7eb;--glass-bg:rgba(255,255,255,0.8);--glass-border:rgba(0,0,0,0.06);--text-primary:#111827;--text-secondary:#4b5563;--text-tertiary:#9ca3af;--primary:#6d28d9;--primary-glow:rgba(109,40,217,0.2);--secondary:#0891b2;--secondary-glow:rgba(8,145,178,0.2);--success:#059669;--card-shadow:0 8px 32px 0 rgba(31,38,135,0.07);--neon-shadow:0 0 10px rgba(109,40,217,0.15)}*{box-sizing:border-box;padding:0;margin:0;transition:background-color .3s ease,border-color .3s ease,color .2s ease}body,html{max-width:100vw;overflow-x:hidden;font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);scroll-behavior:smooth}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--primary)}.glass-panel{backdrop-filter:blur(12px) saturate(180%);-webkit-backdrop-filter:blur(12px) saturate(180%)}.glass-card,.glass-panel{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:16px}.glass-card{-webkit-backdrop-filter:blur(8px) saturate(180%);backdrop-filter:blur(8px) saturate(180%);padding:24px;box-shadow:var(--card-shadow);transition:transform .3s cubic-bezier(.4,0,.2,1),box-shadow .3s ease,border-color .3s ease}.glass-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:0 12px 40px 0 rgba(139,92,246,.15)}.neon-border{position:relative}.neon-border:after{content:"";position:absolute;inset:-1px;background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:inherit;z-index:-1;opacity:.4;transition:opacity .3s ease}.neon-border:hover:after{opacity:1}.neon-text{background:linear-gradient(135deg,var(--primary) 0,var(--secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.math-block,.neon-text{font-family:var(--font-mono)}.math-block{background:rgba(139,92,246,.06);border-left:4px solid var(--primary);padding:16px;border-radius:4px 12px 12px 4px;font-size:1.1rem;color:var(--text-primary);margin:16px 0;overflow-x:auto;white-space:nowrap;letter-spacing:.05em;box-shadow:inset 0 2px 8px rgba(0,0,0,.1)}.math-inline{background:rgba(139,92,246,.08);padding:2px 6px;border-radius:4px;font-family:var(--font-mono);font-weight:500}.theme-toggle-btn{background:transparent;border:none;cursor:pointer;display:flex;align-items:center;gap:8px;padding:6px 12px;border-radius:20px;color:var(--text-primary);font-family:var(--font-mono);font-size:.9rem;border:1px solid var(--glass-border)}.theme-toggle-btn:hover{background:var(--bg-tertiary)}.container{max-width:1200px;margin:0 auto;padding:0 24px}.hero{min-height:85vh;display:flex;align-items:center;justify-content:space-between;padding:80px 0;gap:48px}@media (max-width:968px){.hero{flex-direction:column;text-align:center;padding:40px 0}}.graph-container{position:relative;width:450px;height:450px;border-radius:50%;background:radial-gradient(circle,rgba(139,92,246,.08) 0,transparent 70%);display:flex;align-items:center;justify-content:center}.graph-axis{position:absolute;background:var(--text-tertiary);opacity:.3}.graph-x{width:80%;height:2px}.graph-y{width:2px;height:80%}.graph-curve{position:absolute;width:60%;height:60%;border-left:3px solid transparent;border-top:3px solid transparent;border-radius:50%;border-bottom:3px solid transparent;border-bottom-color:var(--secondary);border-right:3px solid transparent;border-right-color:var(--primary);transform:rotate(45deg);animation:spin 20s linear infinite}@keyframes spin{to{transform:rotate(405deg)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;font-family:var(--font-sans);font-weight:600;font-size:1rem;border-radius:30px;cursor:pointer;text-decoration:none;border:none;transition:all .3s cubic-bezier(.4,0,.2,1)}.btn-primary{background:linear-gradient(135deg,var(--primary) 0,var(--primary) 50%,var(--secondary) 100%);color:#fff;box-shadow:0 4px 20px rgba(139,92,246,.3)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 26px rgba(139,92,246,.5)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--glass-border)}.btn-secondary:hover{background:var(--glass-border);transform:translateY(-2px)}.header{position:-webkit-sticky;position:sticky;top:0;z-index:100;background:rgba(3,7,18,.7);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--glass-border)}[data-theme=light] .header{background:rgba(243,244,246,.7)}.nav{justify-content:space-between;height:70px}.nav,.nav-links{display:flex;align-items:center}.nav-links{gap:28px;list-style:none}.nav-link{color:var(--text-secondary);text-decoration:none;font-size:.95rem;font-weight:500}.nav-link:hover{color:var(--primary)}.math-toggle-container{display:flex;align-items:center;gap:12px;background:var(--bg-secondary);border:1px solid var(--glass-border);padding:4px 8px;border-radius:24px}.math-toggle-option{padding:4px 10px;border-radius:16px;cursor:pointer;font-size:.8rem;font-weight:700;font-family:var(--font-mono);transition:all .2s ease}.math-toggle-active{background:var(--primary);color:white;box-shadow:0 0 10px var(--primary-glow)}.phone-mockup-wrapper{perspective:1000px}.phone-mockup{width:320px;height:640px;border-radius:40px;background:#111;border:10px solid #222;box-shadow:0 25px 50px -12px rgba(0,0,0,.5),0 0 30px var(--primary-glow);overflow:hidden;flex-direction:column}.phone-mockup,.phone-screen{position:relative;display:flex}.phone-screen{flex:1 1;background:var(--bg-primary);flex-direction:column;overflow-y:auto}.phone-notch{width:130px;height:20px;background:#222;border-bottom-left-radius:16px;border-bottom-right-radius:16px;position:absolute;top:0;left:50%;transform:translateX(-50%);z-index:1000}.scan-line{position:absolute;width:100%;height:4px;background:linear-gradient(to bottom,rgba(6,182,212,0),var(--secondary),rgba(6,182,212,0));animation:scan 2s ease-in-out infinite;z-index:10}@keyframes scan{0%{top:0}50%{top:100%}to{top:0}}