*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:#0a0f1a;color:#e2e8f0;line-height:1.6;overflow-x:hidden}a{text-decoration:none;color:inherit}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes pulse-glow{0%,to{box-shadow:0 0 20px #6366f14d}50%{box-shadow:0 0 40px #6366f199}}@keyframes gradient-shift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;padding:0 40px;height:64px;background:#0a0f1ad9;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid rgba(99,102,241,.15)}.navbar-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#fff}.navbar-brand .brand-icon{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,#6366f1,#8b5cf6);display:flex;align-items:center;justify-content:center;font-size:16px}.navbar-links{display:flex;align-items:center;gap:8px}.navbar-links a{padding:8px 18px;border-radius:8px;font-size:14px;font-weight:500;color:#94a3b8;transition:all .2s ease}.navbar-links a:hover,.navbar-links a.active{color:#fff;background:#6366f126}.navbar-links .btn-primary-sm{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;padding:8px 20px;border-radius:8px;font-weight:600}.navbar-links .btn-primary-sm:hover{opacity:.9;transform:translateY(-1px)}.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:100px 24px 60px;overflow:hidden}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse 80% 60% at 50% 0%,rgba(99,102,241,.15) 0%,transparent 60%),radial-gradient(ellipse 60% 50% at 20% 80%,rgba(139,92,246,.1) 0%,transparent 60%),radial-gradient(ellipse 60% 50% at 80% 80%,rgba(59,130,246,.08) 0%,transparent 60%);z-index:0}.hero-content{position:relative;z-index:1;max-width:800px;animation:fadeInUp .8s ease-out}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:100px;background:#6366f126;border:1px solid rgba(99,102,241,.3);font-size:13px;font-weight:500;color:#a5b4fc;margin-bottom:28px}.hero h1{font-size:clamp(36px,6vw,64px);font-weight:800;line-height:1.1;margin-bottom:20px;background:linear-gradient(135deg,#fff,#a5b4fc,#818cf8);background-size:200% 200%;animation:gradient-shift 6s ease infinite;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{font-size:clamp(16px,2.5vw,20px);color:#94a3b8;max-width:600px;margin:0 auto 40px;line-height:1.7}.hero-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:12px;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-size:16px;font-weight:600;border:none;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 20px #6366f166}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px #6366f180}.btn-secondary{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:12px;background:#ffffff0d;color:#e2e8f0;font-size:16px;font-weight:600;border:1px solid rgba(255,255,255,.1);cursor:pointer;transition:all .3s ease}.btn-secondary:hover{background:#ffffff1a;border-color:#fff3;transform:translateY(-2px)}.hero-preview{position:relative;z-index:1;margin-top:60px;width:100%;max-width:900px;animation:fadeInUp 1s ease-out .3s both}.preview-window{border-radius:16px;overflow:hidden;background:#1e1e2e;border:1px solid rgba(255,255,255,.08);box-shadow:0 20px 60px #00000080,0 0 40px #6366f11a}.preview-titlebar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#181825;border-bottom:1px solid rgba(255,255,255,.05)}.preview-dot{width:12px;height:12px;border-radius:50%}.preview-dot.red{background:#f38ba8}.preview-dot.yellow{background:#f9e2af}.preview-dot.green{background:#a6e3a1}.preview-body{display:grid;grid-template-columns:1fr 1fr;min-height:220px}.preview-pane{padding:20px;font-family:Cascadia Code,Fira Code,monospace;font-size:13px;line-height:1.8}.preview-pane:first-child{border-right:1px solid rgba(255,255,255,.05)}.preview-pane .line-removed{color:#f38ba8;background:#f38ba814;padding:2px 4px;border-radius:3px}.preview-pane .line-added{color:#a6e3a1;background:#a6e3a114;padding:2px 4px;border-radius:3px}.preview-pane .line-normal{color:#6c7086}.features{padding:100px 24px;max-width:1200px;margin:0 auto}.section-header{text-align:center;margin-bottom:60px}.section-label{display:inline-block;font-size:13px;font-weight:600;color:#818cf8;text-transform:uppercase;letter-spacing:2px;margin-bottom:12px}.section-header h2{font-size:clamp(28px,4vw,42px);font-weight:700;color:#fff;margin-bottom:16px}.section-header p{font-size:17px;color:#64748b;max-width:500px;margin:0 auto}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}.feature-card{padding:32px;border-radius:16px;background:#ffffff08;border:1px solid rgba(255,255,255,.06);transition:all .3s ease;animation:fadeInUp .6s ease-out both}.feature-card:nth-child(1){animation-delay:.1s}.feature-card:nth-child(2){animation-delay:.2s}.feature-card:nth-child(3){animation-delay:.3s}.feature-card:nth-child(4){animation-delay:.4s}.feature-card:nth-child(5){animation-delay:.5s}.feature-card:nth-child(6){animation-delay:.6s}.feature-card:hover{background:#ffffff0f;border-color:#6366f14d;transform:translateY(-4px)}.feature-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:18px;background:#6366f11f}.feature-card h3{font-size:18px;font-weight:600;color:#fff;margin-bottom:10px}.feature-card p{font-size:14px;color:#64748b;line-height:1.7}.how-it-works{padding:80px 24px 100px;max-width:900px;margin:0 auto}.steps{display:flex;flex-direction:column;gap:0;position:relative}.steps:before{content:"";position:absolute;left:24px;top:0;bottom:0;width:2px;background:linear-gradient(180deg,#6366f1,#8b5cf6,transparent)}.step{display:flex;gap:24px;align-items:flex-start;padding:28px 0}.step-number{flex-shrink:0;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#6366f1,#8b5cf6);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;color:#fff;position:relative;z-index:1}.step-content h3{font-size:18px;font-weight:600;color:#fff;margin-bottom:6px}.step-content p{font-size:15px;color:#64748b}.cta{padding:80px 24px;text-align:center}.cta-box{max-width:700px;margin:0 auto;padding:60px 40px;border-radius:24px;background:linear-gradient(135deg,#6366f126,#8b5cf61a);border:1px solid rgba(99,102,241,.2);position:relative;overflow:hidden}.cta-box:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 50% 0%,rgba(99,102,241,.2),transparent 70%)}.cta-box h2{font-size:clamp(24px,4vw,36px);font-weight:700;color:#fff;margin-bottom:12px;position:relative}.cta-box p{font-size:17px;color:#94a3b8;margin-bottom:30px;position:relative}.footer{padding:32px 24px;text-align:center;border-top:1px solid rgba(255,255,255,.06);color:#475569;font-size:14px}.dashboard{padding-top:80px;min-height:100vh}.dashboard-header{padding:40px 40px 0;animation:fadeInUp .6s ease-out}.dashboard-header h1{font-size:28px;font-weight:700;color:#fff;margin-bottom:4px}.dashboard-header p{color:#64748b;font-size:15px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;padding:30px 40px;animation:fadeInUp .6s ease-out .1s both}.stat-card{padding:24px;border-radius:16px;background:#ffffff08;border:1px solid rgba(255,255,255,.06);transition:all .3s ease}.stat-card:hover{border-color:#6366f14d;transform:translateY(-2px)}.stat-card .stat-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:14px}.stat-card .stat-icon.purple{background:#6366f126}.stat-card .stat-icon.green{background:#22c55e26}.stat-card .stat-icon.blue{background:#3b82f626}.stat-card .stat-icon.amber{background:#f59e0b26}.stat-card .stat-value{font-size:32px;font-weight:700;color:#fff;margin-bottom:4px}.stat-card .stat-label{font-size:13px;color:#64748b;text-transform:uppercase;letter-spacing:1px}.dashboard-content{display:grid;grid-template-columns:1fr 380px;gap:24px;padding:0 40px 40px;animation:fadeInUp .6s ease-out .2s both}.quick-actions{padding:28px;border-radius:16px;background:#ffffff08;border:1px solid rgba(255,255,255,.06)}.quick-actions h2{font-size:18px;font-weight:600;color:#fff;margin-bottom:20px}.action-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.action-card{display:flex;flex-direction:column;align-items:center;gap:10px;padding:24px 16px;border-radius:12px;background:#ffffff08;border:1px solid rgba(255,255,255,.06);cursor:pointer;transition:all .3s ease;text-align:center}.action-card:hover{background:#6366f11a;border-color:#6366f14d;transform:translateY(-2px)}.action-card .action-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:20px;background:#6366f11f}.action-card span{font-size:14px;font-weight:500;color:#cbd5e1}.languages-panel{padding:28px;border-radius:16px;background:#ffffff08;border:1px solid rgba(255,255,255,.06)}.languages-panel h2{font-size:18px;font-weight:600;color:#fff;margin-bottom:20px}.lang-list{display:flex;flex-direction:column;gap:8px}.lang-item{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-radius:10px;background:#ffffff05;border:1px solid rgba(255,255,255,.04);transition:all .2s ease}.lang-item:hover{background:#ffffff0d}.lang-item .lang-name{display:flex;align-items:center;gap:10px;font-size:14px;color:#cbd5e1}.lang-item .lang-ext{font-size:12px;color:#475569;background:#ffffff0d;padding:3px 10px;border-radius:6px;font-family:monospace}.recent-activity{padding:28px;border-radius:16px;background:#ffffff08;border:1px solid rgba(255,255,255,.06)}.recent-activity h2{font-size:18px;font-weight:600;color:#fff;margin-bottom:20px}.activity-list{display:flex;flex-direction:column;gap:14px}.activity-item{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:10px;background:#ffffff05;border:1px solid rgba(255,255,255,.04)}.activity-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.activity-dot.merge{background:#a6e3a1}.activity-dot.compare{background:#89b4fa}.activity-dot.revert{background:#f9e2af}.activity-info{flex:1}.activity-info .activity-title{font-size:14px;color:#cbd5e1;font-weight:500}.activity-info .activity-time{font-size:12px;color:#475569}.tips-panel{padding:28px;border-radius:16px;background:linear-gradient(135deg,#6366f114,#8b5cf60d);border:1px solid rgba(99,102,241,.15)}.tips-panel h2{font-size:18px;font-weight:600;color:#fff;margin-bottom:16px}.tips-panel ul{list-style:none;display:flex;flex-direction:column;gap:10px}.tips-panel li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#94a3b8;line-height:1.5}.tips-panel li:before{content:"→";color:#818cf8;font-weight:700;flex-shrink:0}.diff-tool-page{min-height:100vh;background:linear-gradient(135deg,#0f2027,#203a43,#2c5364);padding:80px 20px 20px;color:#fff;font-family:Segoe UI,sans-serif}.diff-tool-page h1{text-align:center;font-size:clamp(22px,4vw,32px);margin-bottom:5px}.diff-tool-page .subtitle{text-align:center;color:#ddd;margin-bottom:25px;font-size:clamp(14px,3vw,16px)}.upload-row{display:flex;gap:20px;justify-content:center;margin-bottom:20px;flex-wrap:wrap}.drop-box{width:min(100%,260px);height:130px;border:2px dashed #aaa;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#ffffff0d;transition:all .3s ease;cursor:pointer}.drop-box:hover{border-color:#818cf8;background:#6366f114}.drop-box h3{font-size:15px;margin-bottom:6px}.drop-box input[type=file]{font-size:13px}.drop-box .drop-label{text-align:center;margin-top:6px;color:#aaa;font-size:13px}.diff-actions{display:flex;justify-content:center;gap:10px;margin-bottom:15px;flex-wrap:wrap}.diff-actions button{padding:8px 18px;border-radius:8px;border:1px solid rgba(255,255,255,.15);background:#ffffff14;color:#fff;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease}.diff-actions button:hover{background:#6366f14d;border-color:#6366f180}.editor-wrapper{border-radius:10px;overflow:hidden;box-shadow:0 0 20px #0009}@media (max-width: 768px){.navbar{padding:0 16px}.navbar-links a{padding:6px 12px;font-size:13px}.dashboard-content{grid-template-columns:1fr}.stats-grid{padding:20px;grid-template-columns:repeat(2,1fr)}.dashboard-header{padding:30px 20px 0}.dashboard-content{padding:0 20px 20px}.action-grid,.preview-body{grid-template-columns:1fr}.preview-pane:first-child{border-right:none;border-bottom:1px solid rgba(255,255,255,.05)}}@media (max-width: 480px){.stats-grid{grid-template-columns:1fr}.hero-buttons{flex-direction:column;align-items:center}}