@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;600&display=swap";*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #0A84FF;--primary-light: #3FA9F5;--secondary: #00C7BE;--accent: #FF9500;--success: #34C759;--danger: #FF453A;--warning: #FF9500;--bg-primary: #FFFFFF;--bg-secondary: #F2F2F7;--bg-tertiary: #E5E5EA;--text-primary: #000000;--text-secondary: #3C3C43;--text-muted: #8E8E93;--border-color: #D1D1D6;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow: 0 4px 16px rgba(0, 0, 0, .12);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .16);--shadow-xl: 0 20px 48px rgba(0, 0, 0, .2);--glass-blur: 20px;--glass-opacity: .7}:root[data-theme=dark]{--bg-primary: #000000;--bg-secondary: #1C1C1E;--bg-tertiary: #2C2C2E;--text-primary: #FFFFFF;--text-secondary: #E5E5EA;--text-muted: #8E8E93;--border-color: #3A3A3C}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;transition:background-color .4s cubic-bezier(.25,.46,.45,.94);overflow-x:hidden;letter-spacing:-.3px}.background-blur{position:fixed;border-radius:50%;opacity:.15;filter:blur(100px);pointer-events:none;z-index:0}.blur-1{width:600px;height:600px;background:linear-gradient(135deg,var(--primary),var(--primary-light));top:-200px;left:-200px;animation:floatSlow 20s ease-in-out infinite}.blur-2{width:500px;height:500px;background:linear-gradient(135deg,var(--secondary),var(--primary));bottom:-150px;right:-150px;animation:floatSlow 25s ease-in-out infinite reverse}.blur-3{width:400px;height:400px;background:linear-gradient(135deg,var(--accent),var(--secondary));top:50%;left:50%;transform:translate(-50%,-50%);animation:floatSlow 30s ease-in-out infinite}@keyframes floatSlow{0%,to{transform:translateY(0) translate(0)}0%{transform:translateY(-10px) translate(-10px)}}.app{min-height:100vh;background:var(--bg-primary);transition:background-color .4s ease;position:relative}.container{max-width:1200px;margin:0 auto;padding:120px 24px 80px;position:relative;z-index:10}.seo-content{position:absolute;left:-9999px;height:1px;width:1px;overflow:hidden}.navbar{position:fixed;top:0;left:0;right:0;height:64px;-webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));background:#ffffffb3;border-bottom:1px solid rgba(0,0,0,.08);z-index:1000;transition:all .4s cubic-bezier(.25,.46,.45,.94)}:root[data-theme=dark] .navbar{background:#1c1c1ecc;border-bottom-color:#ffffff1a}.navbar-container{max-width:1200px;margin:0 auto;height:100%;padding:0 24px;display:flex;align-items:center;justify-content:space-between}.navbar-logo{display:flex;align-items:center;gap:10px;cursor:pointer;transition:transform .3s cubic-bezier(.25,.46,.45,.94)}.navbar-logo:hover{transform:scale(1.04)}.logo-icon{font-size:24px;animation:floatSlow 3s ease-in-out infinite}.logo-text{font-size:18px;font-weight:700;letter-spacing:-.5px;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.logo-pro{font-size:14px;opacity:.7;margin-left:4px}.navbar-items{display:flex;gap:32px;align-items:center}.nav-link{color:var(--text-secondary);text-decoration:none;font-weight:500;font-size:14px;transition:all .3s ease;position:relative}.nav-link:after{content:"";position:absolute;bottom:-8px;left:0;width:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--secondary));transition:width .3s cubic-bezier(.25,.46,.45,.94);border-radius:1px}.nav-link:hover{color:var(--primary)}.nav-link:hover:after{width:100%}.theme-toggle{background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-primary);cursor:pointer;font-size:18px;display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;transition:all .3s cubic-bezier(.25,.46,.45,.94);margin-left:16px}.theme-toggle:hover{background:var(--bg-tertiary);transform:rotate(180deg)}.mobile-menu-btn{display:none;background:none;border:none;color:var(--text-primary);cursor:pointer;font-size:24px;width:40px;height:40px}@media(max-width:768px){.navbar-container{padding:0 16px}.navbar-items{position:absolute;top:64px;left:0;right:0;background:var(--bg-primary);flex-direction:column;gap:0;border-bottom:1px solid var(--border-color);max-height:0;overflow:hidden;transition:max-height .3s ease}.navbar-items.active{max-height:300px;padding:16px 0}.nav-link{padding:12px 24px;width:100%;border-bottom:1px solid var(--border-color)}.mobile-menu-btn{display:flex}}.header{text-align:center;margin-bottom:60px;animation:slideDownFade .8s cubic-bezier(.25,.46,.45,.94)}@keyframes slideDownFade{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}.header-badge{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;background:#0a84ff1a;color:var(--primary);border:1px solid rgba(10,132,255,.3);border-radius:20px;font-size:13px;font-weight:600;letter-spacing:.3px;margin-bottom:24px;animation:slideUpFade .8s cubic-bezier(.25,.46,.45,.94) .1s backwards}.title{font-size:3.5rem;font-weight:700;margin-bottom:16px;letter-spacing:-1px;animation:slideUpFade .8s cubic-bezier(.25,.46,.45,.94) .2s backwards;line-height:1.1}.gradient-text{background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.subtitle{font-size:1.1rem;color:var(--text-secondary);max-width:600px;margin:0 auto;animation:slideUpFade .8s cubic-bezier(.25,.46,.45,.94) .3s backwards;font-weight:400}@keyframes slideUpFade{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.mode-switcher-container{display:flex;justify-content:center;margin-bottom:50px;animation:slideUpFade .8s cubic-bezier(.25,.46,.45,.94) .4s backwards}.mode-switcher{position:relative;display:flex;gap:2px;background:var(--bg-secondary);padding:4px;border-radius:12px;border:1px solid var(--border-color);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.slider-track{position:absolute;top:4px;left:4px;height:48px;width:calc(50% - 5px);border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-light));transition:left .4s cubic-bezier(.25,.46,.45,.94);z-index:0;box-shadow:var(--shadow)}.slider-track.right{left:calc(50% + 5px)}.mode-btn{position:relative;z-index:1;flex:1;padding:12px 20px;border:none;background:transparent;cursor:pointer;font-size:14px;font-weight:600;font-family:inherit;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;transition:color .3s ease;min-width:150px;text-transform:capitalize;letter-spacing:-.2px}.mode-btn.active{color:#fff}.mode-btn:hover:not(.active){color:var(--text-primary)}.glass-card{background:#fff6;-webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));border:1px solid rgba(255,255,255,.5);border-radius:24px;padding:32px;transition:all .4s cubic-bezier(.25,.46,.45,.94);box-shadow:var(--shadow-lg);animation:slideUpFade .8s cubic-bezier(.25,.46,.45,.94) .5s backwards}:root[data-theme=dark] .glass-card{background:#3c3c434d;border:1px solid rgba(255,255,255,.12)}.glass-card:hover{border-color:var(--primary);transform:translateY(-8px);box-shadow:0 20px 40px #0a84ff26;background:#ffffff80}:root[data-theme=dark] .glass-card:hover{background:#3c3c4366}.card-header{display:flex;align-items:flex-start;gap:16px;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid rgba(0,0,0,.08)}:root[data-theme=dark] .card-header{border-bottom-color:#ffffff14}.header-icon{display:flex;align-items:center;justify-content:center;width:48px;height:48px;background:#0a84ff1a;border-radius:12px;color:var(--primary);flex-shrink:0}.card-header h2{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin:0 0 4px;letter-spacing:-.3px}.card-subtitle{font-size:13px;color:var(--text-muted);margin:0;font-weight:400}.form-content{display:flex;flex-direction:column;gap:20px}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{font-size:13px;font-weight:600;color:var(--text-primary);text-transform:capitalize;letter-spacing:.3px}.input-wrapper{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:14px;color:var(--text-muted);pointer-events:none;transition:color .3s ease;flex-shrink:0}.premium-input,.premium-textarea{width:100%;padding:12px 14px 12px 44px;border:1.5px solid var(--border-color);border-radius:12px;font-family:inherit;font-size:15px;color:var(--text-primary);background:var(--bg-secondary);transition:all .3s cubic-bezier(.25,.46,.45,.94);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}:root[data-theme=dark] .premium-input,:root[data-theme=dark] .premium-textarea{background:#3c3c434d}.premium-input::placeholder,.premium-textarea::placeholder{color:var(--text-muted)}.premium-input:focus,.premium-textarea:focus{outline:none;border-color:var(--primary);background:var(--bg-primary);box-shadow:0 0 0 3px #0a84ff1f}:root[data-theme=dark] .premium-input:focus,:root[data-theme=dark] .premium-textarea:focus{background:#3c3c4380}.premium-textarea{resize:vertical;min-height:100px;padding:12px 14px}.input-wrapper:focus-within .input-icon{color:var(--primary)}.btn{padding:12px 24px;border:none;border-radius:12px;font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .3s cubic-bezier(.25,.46,.45,.94);display:flex;align-items:center;justify-content:center;gap:10px;position:relative;overflow:hidden;text-transform:capitalize;letter-spacing:-.2px}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;background:#fff6;border-radius:50%;transform:translate(-50%,-50%);transition:width .6s,height .6s}.btn:active:before{width:300px;height:300px}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:0 8px 20px #0a84ff4d;width:100%;margin-top:8px}.btn-primary:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 12px 28px #0a84ff66}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-lg{padding:14px 28px;font-size:15px}.spinner{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-bottom:60px}@media(max-width:1024px){.content-grid{grid-template-columns:1fr;gap:24px}}.input-section,.preview-section{display:flex;flex-direction:column}.preview-card{height:100%;display:flex;flex-direction:column}.preview-actions{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap}.action-btn{padding:10px 16px;border:1.5px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);border-radius:10px;cursor:pointer;font-weight:600;font-size:13px;display:flex;align-items:center;gap:6px;font-family:inherit;transition:all .3s cubic-bezier(.25,.46,.45,.94);text-transform:capitalize;letter-spacing:-.2px;flex:1}.action-btn:hover{border-color:var(--primary);color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-light));transform:translateY(-2px);box-shadow:0 8px 16px #0a84ff33}.action-btn.copied{border-color:var(--success);background:#34c7591a;color:var(--success)}.markdown-preview{flex:1;overflow-y:auto;padding-right:12px;line-height:1.8}.markdown-preview::-webkit-scrollbar{width:6px}.markdown-preview::-webkit-scrollbar-track{background:transparent}.markdown-preview::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}.markdown-preview::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.markdown-preview h1{font-size:1.8rem;margin:24px 0 16px;color:var(--primary);border-bottom:2px solid var(--border-color);padding-bottom:12px;font-weight:700}.markdown-preview h2{font-size:1.3rem;margin:20px 0 12px;color:var(--text-primary);font-weight:700}.markdown-preview h3{font-size:1.1rem;margin:16px 0 8px;color:var(--text-secondary);font-weight:600}.markdown-preview code{background:var(--bg-secondary);padding:3px 8px;border-radius:6px;font-family:JetBrains Mono,monospace;font-size:13px;color:var(--primary)}.markdown-preview pre{background:var(--bg-secondary);border:1px solid var(--border-color);padding:16px;border-radius:12px;overflow-x:auto;margin:16px 0;font-family:JetBrains Mono,monospace;font-size:13px}.markdown-preview pre code{background:none;color:var(--secondary);padding:0}.markdown-preview ul,.markdown-preview ol{margin:16px 0;padding-left:24px}.markdown-preview li{margin:8px 0;color:var(--text-secondary)}.markdown-preview blockquote{border-left:3px solid var(--primary);padding-left:16px;margin:16px 0;color:var(--text-muted);font-style:italic}.markdown-preview a{color:var(--primary);text-decoration:none;border-bottom:1px dotted var(--primary);transition:all .3s ease}.markdown-preview a:hover{border-bottom-style:solid;color:var(--secondary)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:350px;color:var(--text-muted);text-align:center;gap:16px}.empty-icon{font-size:56px;opacity:.4;animation:floatSlow 3s ease-in-out infinite}.empty-state p{font-size:1rem;color:var(--text-secondary);font-weight:500}.empty-subtext{font-size:13px;color:var(--text-muted)}.message-box{margin-top:16px;padding:12px 16px;border-radius:12px;display:flex;align-items:center;gap:10px;font-size:13px;font-weight:500;animation:slideDownFade .3s ease-out}.error-message{background:#ff453a1a;border:1px solid rgba(255,69,58,.3);color:#ff453a}.success-message{background:#34c7591a;border:1px solid rgba(52,199,89,.3);color:#34c759}.message-icon{font-size:16px}.footer{background:var(--bg-secondary);border-top:1px solid var(--border-color);padding:60px 24px 20px;margin-top:100px}.footer-content{max-width:1200px;margin:0 auto 32px;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:32px}.footer-section h3{font-size:1.1rem;font-weight:700;margin-bottom:12px;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.footer-section h4{font-size:.95rem;font-weight:600;margin-bottom:12px;color:var(--text-primary)}.footer-section p{color:var(--text-muted);font-size:13px;line-height:1.8}.footer-section ul{list-style:none}.footer-section ul li{margin-bottom:8px}.footer-section a{color:var(--text-secondary);text-decoration:none;font-size:13px;transition:all .3s ease}.footer-section a:hover{color:var(--primary);transform:translate(2px)}.footer-bottom{max-width:1200px;margin:0 auto;padding-top:16px;border-top:1px solid var(--border-color);text-align:center;color:var(--text-muted);font-size:12px}@media(max-width:768px){.container{padding:100px 16px 60px}.title{font-size:2.2rem}.subtitle{font-size:1rem}.glass-card{padding:20px}.card-header{gap:12px}.card-header h2{font-size:1.3rem}.header-icon{width:40px;height:40px}.content-grid{gap:16px}.mode-btn{min-width:auto;padding:10px 14px;font-size:13px}}@media(max-width:480px){.title{font-size:1.8rem}.container{padding:90px 12px 40px}.navbar-container{padding:0 12px}.glass-card{padding:16px;border-radius:16px}.form-group{gap:6px}.preview-actions{gap:8px}.action-btn{padding:8px 12px;font-size:12px}}