.landing-page{--bg-primary: #030712;--bg-secondary: #0f172a;--bg-card: rgba(15, 23, 42, .8);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--border-color: rgba(71, 85, 105, .5);--accent-primary: #3b82f6;--accent-secondary: #8b5cf6;--accent-tertiary: #06b6d4;--accent-glow: rgba(59, 130, 246, .5);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;overflow-x:hidden;position:relative}.animated-bg{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:0;overflow:hidden}.gradient-mesh{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse 80% 50% at 20% 40%,rgba(59,130,246,.15) 0%,transparent 50%),radial-gradient(ellipse 60% 40% at 80% 20%,rgba(139,92,246,.12) 0%,transparent 50%),radial-gradient(ellipse 50% 60% at 60% 80%,rgba(6,182,212,.1) 0%,transparent 50%);animation:meshMove 20s ease-in-out infinite}@keyframes meshMove{0%,to{transform:translate(0) scale(1)}25%{transform:translate(-5%,3%) scale(1.02)}50%{transform:translate(3%,-2%) scale(.98)}75%{transform:translate(-3%,-3%) scale(1.01)}}.particles{position:absolute;top:0;right:0;bottom:0;left:0}.particle{position:absolute;width:4px;height:4px;background:#3b82f699;border-radius:50%;animation:float 15s ease-in-out infinite}.particle:nth-child(1){left:10%;top:20%;animation-delay:0s;animation-duration:18s}.particle:nth-child(2){left:20%;top:60%;animation-delay:2s;animation-duration:22s;background:#8b5cf699}.particle:nth-child(3){left:70%;top:30%;animation-delay:4s;animation-duration:20s}.particle:nth-child(4){left:80%;top:70%;animation-delay:1s;animation-duration:16s;background:#06b6d499}.particle:nth-child(5){left:50%;top:85%;animation-delay:3s;animation-duration:24s}.particle:nth-child(6){left:30%;top:10%;animation-delay:5s;animation-duration:19s;background:#8b5cf699}.particle:nth-child(7){left:90%;top:50%;animation-delay:2.5s;animation-duration:21s}.particle:nth-child(8){left:5%;top:80%;animation-delay:4.5s;animation-duration:17s;background:#06b6d499}@keyframes float{0%,to{transform:translateY(0) translate(0) scale(1);opacity:.6}25%{transform:translateY(-30px) translate(10px) scale(1.2);opacity:1}50%{transform:translateY(-10px) translate(-15px) scale(.8);opacity:.4}75%{transform:translateY(-40px) translate(5px) scale(1.1);opacity:.8}}.grid-pattern{position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgba(59,130,246,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(59,130,246,.03) 1px,transparent 1px);background-size:60px 60px;-webkit-mask-image:radial-gradient(ellipse at center,black 0%,transparent 70%);mask-image:radial-gradient(ellipse at center,black 0%,transparent 70%)}.landing-content{position:relative;z-index:1}.nav{display:flex;justify-content:space-between;align-items:center;padding:24px 48px;max-width:1400px;margin:0 auto}.landing-page .logo{display:flex;align-items:center;gap:12px}.landing-page .logo-icon{width:36px;height:36px;color:var(--accent-primary);filter:drop-shadow(0 0 10px var(--accent-glow))}.landing-page .logo-text{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav-links{display:flex;align-items:center;gap:32px}.nav-link{color:var(--text-secondary);font-size:.9rem;font-weight:500;transition:color .2s ease}.nav-link:hover{color:var(--text-primary)}.github-link{display:flex;align-items:center;gap:8px;padding:10px 20px;background:#3b82f61a;border:1px solid rgba(59,130,246,.3);border-radius:30px;color:var(--accent-primary);font-size:.875rem;font-weight:500;transition:all .2s ease}.github-link:hover{background:#3b82f633;border-color:var(--accent-primary);box-shadow:0 0 20px var(--accent-glow)}.github-link svg{width:20px;height:20px}.lang-toggle{display:flex;align-items:center;gap:4px;padding:8px 12px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:30px;cursor:pointer;transition:all .2s ease}.lang-toggle:hover{border-color:var(--accent-primary);background:#3b82f61a}.lang-toggle .flag-id,.lang-toggle .flag-en{font-size:1.25rem;opacity:.4;transition:opacity .2s ease,transform .2s ease}.lang-toggle .flag-id.active,.lang-toggle .flag-en.active{opacity:1;transform:scale(1.1)}.hero{max-width:1400px;margin:0 auto;padding:60px 48px 100px;display:grid;grid-template-columns:1fr 1.1fr;gap:80px;align-items:center;min-height:calc(100vh - 100px)}.hero-content{max-width:560px}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:#10b9811a;border:1px solid rgba(16,185,129,.3);border-radius:30px;color:#10b981;font-size:.8rem;font-weight:600;margin-bottom:24px;text-transform:uppercase;letter-spacing:.5px}.hero-badge svg{width:16px;height:16px}.hero h1{font-size:4rem;font-weight:800;line-height:1.1;margin-bottom:24px;letter-spacing:-.02em}.hero h1 .gradient-text{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary),var(--accent-tertiary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;background-size:200% auto;animation:gradientShift 5s ease infinite}@keyframes gradientShift{0%,to{background-position:0% center}50%{background-position:100% center}}.hero-subtitle{font-size:1.25rem;color:var(--text-secondary);line-height:1.7;margin-bottom:40px}.hero-stats{display:flex;gap:48px}.stat{text-align:left}.stat-value{font-size:2rem;font-weight:700;color:var(--accent-primary);margin-bottom:4px}.stat-label{font-size:.875rem;color:var(--text-muted)}.demo-container{position:relative}.demo-glow{position:absolute;top:-40px;right:-40px;bottom:-40px;left:-40px;background:radial-gradient(ellipse at center,var(--accent-glow),transparent 70%);filter:blur(60px);opacity:.4;animation:pulse 4s ease-in-out infinite}@keyframes pulse{0%,to{opacity:.3;transform:scale(1)}50%{opacity:.5;transform:scale(1.05)}}.demo-card{position:relative;background:var(--bg-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border-color);border-radius:24px;padding:32px;box-shadow:0 25px 50px -12px #00000080,inset 0 1px #ffffff0d}.demo-header{display:flex;align-items:center;gap:12px;margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--border-color)}.demo-header-icon{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border-radius:12px;color:#fff}.demo-header-icon svg{width:24px;height:24px}.demo-header-text h3{font-size:1.125rem;font-weight:600;margin-bottom:2px}.demo-header-text p{font-size:.8rem;color:var(--text-muted)}.mode-switcher{display:flex;background:var(--bg-primary);border-radius:12px;padding:4px;position:relative;margin-bottom:24px}.mode-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;background:transparent;border:none;color:var(--text-secondary);font-size:.9rem;font-weight:500;cursor:pointer;border-radius:8px;transition:color .3s ease;z-index:1}.mode-btn svg{width:18px;height:18px}.mode-btn.active{color:var(--text-primary)}.mode-indicator{position:absolute;top:4px;left:4px;width:calc(50% - 4px);height:calc(100% - 8px);background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border-radius:8px;transition:transform .3s ease}.mode-indicator.decrypt{transform:translate(100%);background:linear-gradient(135deg,#10b981,#06b6d4)}.demo-input-group{margin-bottom:20px}.demo-input-group label{display:flex;align-items:center;gap:8px;font-size:.8rem;font-weight:500;color:var(--text-secondary);margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}.demo-input-group label svg{width:14px;height:14px;color:var(--accent-primary)}.demo-input{width:100%;padding:14px 16px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:10px;color:var(--text-primary);font-size:1rem;transition:border-color .2s ease,box-shadow .2s ease}.demo-input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px #3b82f626}.demo-input::placeholder{color:var(--text-muted)}.demo-textarea{resize:vertical;min-height:100px;font-family:inherit;line-height:1.5}.password-wrapper{position:relative}.password-wrapper .demo-input{padding-right:48px}.toggle-visibility{position:absolute;right:14px;top:50%;transform:translateY(-50%);background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:4px}.toggle-visibility:hover{color:var(--text-secondary)}.toggle-visibility svg{width:20px;height:20px}.demo-action-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:16px 24px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border:none;border-radius:12px;color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.demo-action-btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px #3b82f666}.demo-action-btn svg{width:20px;height:20px}.demo-result{margin-top:24px;padding-top:24px;border-top:1px solid var(--border-color)}.demo-result-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.demo-result-header span{font-size:.8rem;font-weight:500;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.demo-result-actions{display:flex;gap:8px}.demo-icon-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:8px;color:var(--text-secondary);cursor:pointer;transition:all .2s ease}.demo-icon-btn:hover{background:var(--accent-primary);border-color:var(--accent-primary);color:#fff}.demo-icon-btn svg{width:18px;height:18px}.demo-result-output{padding:16px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:10px;font-family:JetBrains Mono,monospace;font-size:.85rem;line-height:1.6;word-break:break-all;color:var(--accent-tertiary);max-height:150px;overflow-y:auto}.demo-error{display:flex;align-items:center;gap:10px;margin-top:16px;padding:12px 16px;background:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:10px;color:#ef4444;font-size:.875rem}.demo-error svg{width:18px;height:18px;flex-shrink:0}.features{padding:120px 48px;max-width:1400px;margin:0 auto}.section-header{text-align:center;margin-bottom:80px}.section-header h2{font-size:3rem;font-weight:700;margin-bottom:16px}.section-header p{font-size:1.25rem;color:var(--text-secondary);max-width:600px;margin:0 auto}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.feature-card{background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border-color);border-radius:20px;padding:40px 32px;transition:all .3s ease}.feature-card:hover{transform:translateY(-8px);border-color:var(--accent-primary);box-shadow:0 20px 40px #0000004d,0 0 30px var(--accent-glow)}.feature-icon{width:60px;height:60px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#3b82f633,#8b5cf633);border-radius:16px;margin-bottom:24px;color:var(--accent-primary)}.feature-icon svg{width:28px;height:28px}.feature-card h3{font-size:1.25rem;font-weight:600;margin-bottom:12px}.feature-card p{color:var(--text-secondary);line-height:1.6}.how-it-works{padding:120px 48px;background:linear-gradient(180deg,transparent 0%,rgba(15,23,42,.5) 50%,transparent 100%)}.how-it-works-inner{max-width:1200px;margin:0 auto}.steps{display:flex;justify-content:center;gap:60px;position:relative}.steps:before{content:"";position:absolute;top:50px;left:calc(16.66% + 30px);right:calc(16.66% + 30px);height:2px;background:linear-gradient(90deg,var(--accent-primary),var(--accent-secondary),var(--accent-tertiary));z-index:0}.step{text-align:center;position:relative;z-index:1;flex:1;max-width:280px}.step-icon{width:100px;height:100px;display:flex;align-items:center;justify-content:center;background:var(--bg-secondary);border:2px solid var(--accent-primary);border-radius:50%;margin:0 auto 24px;color:var(--accent-primary);transition:all .3s ease}.step:hover .step-icon{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));color:#fff;box-shadow:0 0 40px var(--accent-glow)}.step-icon svg{width:40px;height:40px}.step h3{font-size:1.25rem;font-weight:600;margin-bottom:8px}.step p{color:var(--text-secondary);font-size:.95rem;line-height:1.6}.open-source{padding:120px 48px;max-width:1000px;margin:0 auto;text-align:center}.open-source h2{font-size:2.5rem;font-weight:700;margin-bottom:16px}.open-source>p{font-size:1.125rem;color:var(--text-secondary);margin-bottom:48px}.trust-badges{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;margin-bottom:48px}.trust-badge{display:flex;align-items:center;gap:10px;padding:14px 24px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;font-size:.9rem;color:var(--text-secondary)}.trust-badge svg{width:20px;height:20px;color:#10b981}.github-cta{display:inline-flex;align-items:center;gap:12px;padding:18px 36px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border-radius:50px;color:#fff;font-size:1.1rem;font-weight:600;transition:all .3s ease}.github-cta:hover{transform:translateY(-3px);box-shadow:0 15px 40px #3b82f666}.github-cta svg{width:24px;height:24px}.landing-footer{padding:48px;text-align:center;border-top:1px solid var(--border-color)}.landing-footer p{color:var(--text-muted);font-size:.9rem}.landing-footer a{color:var(--accent-primary);font-weight:500}.landing-footer a:hover{text-decoration:underline}.toast{position:fixed;bottom:30px;left:50%;transform:translate(-50%) translateY(100px);display:flex;align-items:center;gap:10px;padding:14px 28px;background:linear-gradient(135deg,#10b981,#06b6d4);border-radius:12px;color:#fff;font-weight:500;box-shadow:0 10px 30px #10b98166;opacity:0;transition:transform .3s ease,opacity .3s ease;z-index:1000}.toast.show{transform:translate(-50%) translateY(0);opacity:1}.toast svg{width:20px;height:20px}@media (max-width: 1024px){.hero{grid-template-columns:1fr;gap:60px;padding:40px 24px 80px}.hero-content{text-align:center;max-width:100%}.hero h1{font-size:3rem}.hero-stats{justify-content:center}.features-grid{grid-template-columns:1fr;max-width:500px;margin:0 auto}.steps{flex-direction:column;gap:40px}.steps:before{display:none}}@media (max-width: 768px){.nav{padding:16px 20px}.nav-links{gap:16px}.hero h1{font-size:2.25rem}.hero-subtitle{font-size:1rem}.section-header h2{font-size:2rem}.trust-badges{flex-direction:column;align-items:center}}