:root{--bg-color:#f8fafc;--text-color:#0f172a;--surface-color:#ffffff;--primary-color:#4f46e5;--primary-hover:#4338ca;--secondary-color:#8b5cf6;--border-color:#e2e8f0;--text-muted:#64748b;--glass-bg:rgba(255,255,255,0.7);--glass-border:rgba(255,255,255,0.5);--gradient-primary:linear-gradient(135deg,#4f46e5,#8b5cf6);--gradient-hero:linear-gradient(135deg,rgba(79,70,229,0.1),rgba(139,92,246,0.1));--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05);--shadow-glass:0 8px 32px 0 rgba(31,38,135,0.07);--font-sans:'Inter',system-ui,-apple-system,sans-serif;--font-display:'Clash Display','Inter',sans-serif;--transition:all 0.3s cubic-bezier(0.4,0,0.2,1);--radius-md:0.75rem;--radius-lg:1rem;--radius-full:9999px;}[data-theme="dark"]{--bg-color:#0f172a;--text-color:#f8fafc;--surface-color:#1e293b;--border-color:#334155;--text-muted:#94a3b8;--glass-bg:rgba(30,41,59,0.7);--glass-border:rgba(255,255,255,0.1);--gradient-hero:linear-gradient(135deg,rgba(79,70,229,0.15),rgba(139,92,246,0.15));--shadow-md:0 4px 6px -1px rgba(0,0,0,0.3);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.3);--shadow-glass:0 8px 32px 0 rgba(0,0,0,0.2);}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html{scroll-behavior:smooth;font-size:16px;}body{font-family:var(--font-sans);background-color:var(--bg-color);color:var(--text-color);line-height:1.6;-webkit-font-smoothing:antialiased;transition:background-color var(--transition),color var(--transition);overflow-x:hidden;}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:700;line-height:1.2;margin-bottom:1rem;}a{color:var(--primary-color);text-decoration:none;transition:var(--transition);}a:hover{color:var(--primary-hover);}img{max-width:100%;height:auto;display:block;}ul,ol{list-style:none;}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 1.5rem;}.text-center{text-align:center;}.text-gradient{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}.text-muted{color:var(--text-muted);}.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.75rem 1.5rem;border-radius:var(--radius-full);font-weight:600;font-size:1rem;cursor:pointer;transition:var(--transition);border:none;white-space:nowrap;}.btn-primary{background:var(--gradient-primary);color:white;box-shadow:0 4px 15px rgba(79,70,229,0.3);}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(79,70,229,0.4);}.btn-secondary{background:transparent;color:var(--text-color);border:1px solid var(--border-color);}.btn-secondary:hover{background:var(--surface-color);border-color:var(--primary-color);}.glass-card{background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow-glass);transition:var(--transition);}.glass-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);}.form-group{margin-bottom:1.5rem;}.form-label{display:block;font-weight:600;margin-bottom:0.5rem;color:var(--text-color);}.form-control{width:100%;padding:0.75rem 1rem;border-radius:var(--radius-md);border:1px solid var(--border-color);background-color:var(--surface-color);color:var(--text-color);font-family:inherit;font-size:1rem;transition:var(--transition);}.form-control:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(79,70,229,0.2);}textarea.form-control{resize:vertical;min-height:100px;}.header{position:sticky;top:0;z-index:100;background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--glass-border);padding:1rem 0;}.header .container{display:flex;align-items:center;justify-content:space-between;}.logo{display:flex;align-items:center;gap:0.5rem;font-size:1.5rem;font-weight:700;color:var(--text-color);}.logo svg{width:2rem;height:2rem;color:var(--primary-color);}.nav-links{display:flex;align-items:center;gap:2rem;}.nav-links a{color:var(--text-color);font-weight:500;}.nav-links a:hover,.nav-links a.active{color:var(--primary-color);}.header-actions{display:flex;align-items:center;gap:1rem;}.theme-toggle{background:transparent;border:none;cursor:pointer;color:var(--text-color);padding:0.5rem;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:var(--transition);}.theme-toggle:hover{background:var(--surface-color);}.mobile-menu-btn{display:none;background:transparent;border:none;cursor:pointer;color:var(--text-color);}.hero{padding:6rem 0 4rem;background:var(--gradient-hero);text-align:center;}.hero h1{font-size:3.5rem;margin-bottom:1.5rem;max-width:800px;margin-left:auto;margin-right:auto;}.hero p{font-size:1.25rem;color:var(--text-muted);max-width:600px;margin:0 auto 2.5rem;}.hero-btns{display:flex;justify-content:center;gap:1rem;}.features{padding:5rem 0;}.section-title{text-align:center;margin-bottom:3rem;}.section-title h2{font-size:2.5rem;}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;}.feature-card{text-align:center;}.feature-icon{width:4rem;height:4rem;background:rgba(79,70,229,0.1);color:var(--primary-color);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;}.feature-icon svg{width:2rem;height:2rem;}.tool-section{padding:3rem 0;}.tool-grid{display:grid;grid-template-columns:350px 1fr;gap:2rem;align-items:start;}.tool-sidebar{position:sticky;top:100px;}.controls-group{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}.toggle-group{display:flex;justify-content:space-between;align-items:center;padding:0.75rem 0;border-bottom:1px solid var(--border-color);}.switch{position:relative;display:inline-block;width:50px;height:24px;}.switch input{opacity:0;width:0;height:0;}.slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:var(--border-color);transition:.4s;border-radius:24px;}.slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background-color:white;transition:.4s;border-radius:50%;}input:checked + .slider{background-color:var(--primary-color);}input:checked + .slider:before{transform:translateX(26px);}.results-area{min-height:400px;}.placeholder-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-muted);text-align:center;padding:3rem;}.placeholder-state svg{width:4rem;height:4rem;margin-bottom:1rem;opacity:0.5;}.loading-state{display:none;flex-direction:column;align-items:center;justify-content:center;padding:4rem 0;}.spinner{width:40px;height:40px;border:4px solid var(--border-color);border-top:4px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem;}@keyframes spin{0%{transform:rotate(0deg);}100%{transform:rotate(360deg);}}#captions-container{display:flex;flex-direction:column;gap:1.5rem;}.caption-card{background:var(--surface-color);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:1.5rem;position:relative;transition:var(--transition);}.caption-card:hover{border-color:var(--primary-color);box-shadow:var(--shadow-sm);}.caption-content{font-size:1.1rem;margin-bottom:1.5rem;white-space:pre-wrap;}.caption-actions{display:flex;justify-content:flex-end;gap:0.5rem;border-top:1px solid var(--border-color);padding-top:1rem;}.action-btn{background:transparent;border:1px solid var(--border-color);color:var(--text-color);border-radius:var(--radius-md);padding:0.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition);}.action-btn:hover{background:var(--surface-color);color:var(--primary-color);border-color:var(--primary-color);}.action-btn svg{width:1.25rem;height:1.25rem;}.blog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:2rem;}.blog-card{border-radius:var(--radius-lg);overflow:hidden;background:var(--surface-color);border:1px solid var(--border-color);transition:var(--transition);}.blog-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);}.blog-img{width:100%;height:200px;object-fit:cover;background-color:var(--border-color);}.blog-content{padding:1.5rem;}.blog-date{font-size:0.875rem;color:var(--text-muted);margin-bottom:0.5rem;display:block;}.blog-title{font-size:1.25rem;margin-bottom:1rem;}.blog-excerpt{color:var(--text-muted);margin-bottom:1.5rem;}.read-more{display:inline-flex;align-items:center;gap:0.5rem;font-weight:600;}.footer{background:var(--surface-color);border-top:1px solid var(--border-color);padding:4rem 0 2rem;margin-top:4rem;}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:3rem;margin-bottom:3rem;}.footer-col h4{font-size:1.1rem;margin-bottom:1.5rem;}.footer-links{display:flex;flex-direction:column;gap:0.75rem;}.footer-links a{color:var(--text-muted);}.footer-links a:hover{color:var(--primary-color);}.footer-bottom{border-top:1px solid var(--border-color);padding-top:2rem;display:flex;justify-content:space-between;align-items:center;color:var(--text-muted);}.social-links{display:flex;gap:1rem;}.social-links a{color:var(--text-muted);}.social-links a:hover{color:var(--primary-color);}.back-to-top{position:fixed;bottom:2rem;right:2rem;background:var(--primary-color);color:white;width:3rem;height:3rem;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;border:none;box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transition:var(--transition);z-index:99;}.back-to-top.visible{opacity:1;visibility:visible;}.back-to-top:hover{transform:translateY(-3px);}.faq-list{max-width:800px;margin:0 auto;}.faq-item{border:1px solid var(--border-color);border-radius:var(--radius-md);margin-bottom:1rem;background:var(--surface-color);overflow:hidden;}.faq-question{width:100%;padding:1.5rem;display:flex;justify-content:space-between;align-items:center;background:none;border:none;font-size:1.1rem;font-weight:600;color:var(--text-color);cursor:pointer;text-align:left;}.faq-question svg{transition:transform 0.3s ease;}.faq-item.active .faq-question svg{transform:rotate(180deg);}.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.3s ease-out;padding:0 1.5rem;}.faq-item.active .faq-answer{max-height:500px;padding-bottom:1.5rem;}.toast-container{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%);z-index:1000;display:flex;flex-direction:column;gap:0.5rem;}.toast{background:var(--surface-color);color:var(--text-color);padding:1rem 1.5rem;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);border-left:4px solid var(--primary-color);display:flex;align-items:center;gap:0.75rem;animation:slideUp 0.3s ease forwards;}@keyframes slideUp{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);}}@media (max-width:1024px){.tool-grid{grid-template-columns:1fr;}.tool-sidebar{position:static;}}@media (max-width:768px){.hero h1{font-size:2.5rem;}.footer-grid{grid-template-columns:1fr;gap:2rem;}.footer-bottom{flex-direction:column;gap:1rem;text-align:center;}.nav-links{position:fixed;top:70px;left:0;right:0;background:var(--surface-color);flex-direction:column;padding:2rem;box-shadow:var(--shadow-md);transform:translateY(-150%);transition:var(--transition);z-index:90;border-bottom:1px solid var(--border-color);}.nav-links.active{transform:translateY(0);}.mobile-menu-btn{display:block;}}@import url("premium.css");html{overflow-x:hidden;scroll-behavior:smooth;}body{overflow-x:hidden;max-width:100vw;}img{max-width:100%;height:auto;content-visibility:auto;}section{content-visibility:auto;contain-intrinsic-size:1000px;}.hero{content-visibility:visible;}