:root{--primary: #4f46e5;--primary-hover: #4338ca;--bg-color: #f8fafc;--panel-bg: #ffffff;--text-primary: #0f172a;--text-secondary: #64748b;--border-color: #e2e8f0;--card-shadow: 0 4px 6px -1px rgba(0, 0, 0, .05), 0 2px 4px -1px rgba(0, 0, 0, .03);--card-shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--header-height: 72px;--radius-lg: 12px;--transition: all .2s ease-in-out}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.animate-spin{animation:spin .8s linear infinite;display:inline-block}@keyframes indeterminate{0%{transform:translate(-250%)}to{transform:translate(350%)}}@keyframes shimmer{0%{left:-60%}to{left:110%}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,Segoe UI,Roboto,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-color);color:var(--text-primary);min-height:100vh;display:flex;flex-direction:column;text-rendering:optimizeSpeed}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2}a{text-decoration:none;color:inherit}button{cursor:pointer;border:none;font-family:Roboto,sans-serif;transition:var(--transition)}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{height:var(--header-height);background:#fffc;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(0,0,0,.05);display:flex;align-items:center;position:sticky;top:0;z-index:50;transition:background-color .3s ease}.nav-container{display:flex;justify-content:space-between;align-items:center;width:100%}.nav-brand{font-weight:900;font-size:26px;display:flex;align-items:center;gap:4px;color:#1a1a1a;letter-spacing:-.5px}.nav-brand-icon{color:var(--primary);display:flex;align-items:center;justify-content:center}.nav-links{display:flex;gap:24px;align-items:center;margin-left:32px;flex:1}.nav-link{font-weight:600;color:#1d1d1f;transition:var(--transition);font-size:14px;letter-spacing:.3px}.nav-link:hover{color:var(--primary)}.nav-actions{display:flex;gap:16px;align-items:center}.btn-login{font-weight:500;font-size:14px;color:#333;background:transparent;padding:8px 12px}.btn-login:hover{color:var(--primary)}.btn-signup{background:var(--primary);color:#fff;padding:8px 16px;border-radius:4px;font-weight:500;font-size:14px}.btn-signup:hover{background:var(--primary-hover)}.btn-primary{background-color:var(--primary)!important;color:#fff!important;padding:12px 24px;border-radius:8px;font-weight:500;font-size:15px;display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 2px 4px #4f46e533;transition:var(--transition)}.btn-primary:hover{background:var(--primary-hover)!important;transform:translateY(-1px);box-shadow:0 4px 8px #4f46e54d}.hero-wrapper{background:linear-gradient(135deg,#e0e7ff,#f8fafc);position:relative;overflow:hidden;padding:80px 0 40px}.hero-wrapper:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background-image:radial-gradient(#cbd5e1 1px,transparent 1px);background-size:24px 24px;opacity:.5;z-index:0}.hero{position:relative;z-index:1;text-align:center;max-width:850px;margin:0 auto}.hero h1{font-size:52px;margin-bottom:20px;color:#1d1d1f;font-weight:800;letter-spacing:-1px}.hero p{font-size:22px;color:#333336;margin-bottom:0;line-height:1.5;font-weight:500}.tool-filters{display:flex;justify-content:center;gap:12px;margin:40px 0 20px;flex-wrap:wrap;position:relative;z-index:1}.filter-btn{padding:10px 24px;border-radius:99px;background:#fffc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(0,0,0,.06);color:#1d1d1f;font-weight:600;font-size:14px;box-shadow:0 2px 8px #00000005;transition:var(--transition)}.filter-btn:hover{background:#f5f5f5}.filter-btn.active{background:#333;color:#fff;border-color:#333}.tools-section{padding:30px 0 80px;background:var(--bg-color)}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}.tool-card{background:#fff;border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:24px;display:flex;flex-direction:column;transition:var(--transition);text-align:left;text-decoration:none;color:inherit;box-shadow:var(--card-shadow);border-top:4px solid transparent}.tool-card:hover{box-shadow:var(--card-shadow-hover);transform:translateY(-4px);border-top-color:var(--primary)}.tool-icon{width:54px;height:54px;margin-bottom:20px;display:flex;align-items:center;justify-content:center;border-radius:16px}.icon-arrow-badge{position:absolute;bottom:-4px;right:-4px;background-color:#fff;border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px #00000026}.tool-card h3{font-size:20px;margin-bottom:10px;color:#1d1d1f;font-weight:700;letter-spacing:-.3px}.tool-card p{font-size:15px;color:var(--text-secondary);line-height:1.5;flex-grow:1}.tool-page{padding:60px 0;display:flex;flex-direction:column;align-items:center;flex:1}.tool-header{text-align:center;margin-bottom:40px}.tool-header h1{font-size:40px;margin-bottom:16px}.tool-header p{font-size:20px;color:#555}.upload-area{width:100%;max-width:800px;height:350px;border:2px dashed #818cf8;border-radius:16px;background:#e0e7ff;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;position:relative;overflow:hidden;transition:var(--transition)}.upload-area:hover,.upload-area.active{background:#c7d2fe;border-color:var(--primary);transform:translateY(-2px)}.btn-upload{background-color:var(--primary)!important;color:#fff!important;border:none;border-radius:8px;padding:14px 36px;font-size:16px;font-weight:600;font-family:inherit;box-shadow:0 4px 12px #4f46e540;pointer-events:auto;transition:var(--transition)}.btn-upload:hover{background:var(--primary-hover)!important;box-shadow:0 8px 16px #4f46e559;transform:translateY(-1px)}.upload-sub{font-size:16px;color:#555;margin-top:24px}.preview-grid{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:flex-start;padding:20px}.file-preview-card{background:#ffffffb3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:16px;box-shadow:0 8px 24px #0000000a;border:1px solid rgba(0,0,0,.05);padding:24px 16px 16px;display:flex;flex-direction:column;align-items:center;gap:12px;width:140px;text-align:center;position:relative;transition:var(--transition);cursor:default}.file-preview-card:hover{box-shadow:0 12px 30px #00000014;transform:translateY(-4px)}.file-card-icon{display:flex;align-items:center;justify-content:center;filter:drop-shadow(0 3px 6px rgba(229,50,45,.2))}.file-card-name{font-size:12px;font-weight:600;color:#333;word-break:break-all;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4;max-width:100%}.file-card-size{font-size:11px;color:#999;font-weight:400}.file-card-remove{position:absolute;top:-8px;right:-8px;background:#ef4444;color:#fff;border:2px solid white;border-radius:8px;width:26px;height:26px;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 2px 4px #0000001a;transition:var(--transition);opacity:0}.file-preview-card:hover .file-card-remove{opacity:1}.file-card-remove:hover{background:#dc2626;transform:translateY(-1px)}.file-preview-add{background:transparent;border:2px dashed rgba(0,0,0,.1);box-shadow:none;cursor:pointer;justify-content:center;min-height:160px}.file-preview-add:hover{border-color:#0003;background:#00000005;transform:scale(1.02)}.result-box{background:#fff;border:1px solid var(--border-color);border-radius:16px;padding:50px 40px;text-align:center;max-width:600px;width:100%;box-shadow:var(--card-shadow-hover);margin-top:40px}.btn-download{background-color:var(--primary)!important;color:#fff!important;padding:14px 28px;border-radius:8px;font-size:16px;font-weight:500;display:inline-flex;align-items:center;gap:12px;margin:24px 0;text-decoration:none;box-shadow:0 4px 12px #4f46e533;transition:var(--transition)}.btn-download:hover{background:var(--primary-hover)!important;transform:translateY(-1px);box-shadow:0 6px 14px #4f46e54d}.footer{background:#fdfdfd;border-top:1px solid #f0f0f0;padding:60px 0 24px;margin-top:auto}.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:40px;margin-bottom:40px}.footer-col h4{font-size:16px;font-weight:700;margin-bottom:20px;color:var(--primary)}.footer-links{list-style:none}.footer-links li{margin-bottom:12px}.footer-links a{color:#333;font-size:14px}.footer-links a:hover{color:var(--primary)}@media(max-width:768px){.nav-links{display:none}.nav-brand span{font-size:20px}.footer-grid{grid-template-columns:1fr;gap:30px}.footer-col[style*=gridColumn]{grid-column:span 1!important}.hero h1{font-size:32px}.hero p{font-size:16px}.tool-filters{gap:8px;padding:0 10px}.filter-btn{padding:6px 14px;font-size:13px}}.workspace{width:100%;display:flex;min-height:500px}.workspace-main{flex:1;background:#fbfbfd;padding:32px;display:flex;align-items:center;justify-content:center}.workspace-sidebar{width:320px;background:#fff;border-left:1px solid #e0e0e0;padding:24px;display:flex;flex-direction:column}.workspace-sidebar-title{font-size:26px;font-weight:800;color:#333;margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid #e0e0e0;text-align:center}.options-group{margin-bottom:20px;background:#eef4ff;border:1.5px solid #3b82f6;border-radius:10px;padding:16px}.radio-label{display:flex;align-items:flex-start;gap:12px;padding:12px;border:1px solid #e0e0e0;border-radius:8px;margin-bottom:8px;cursor:pointer;transition:all .2s}.radio-label:hover{background:#fdfdfd;border-color:var(--primary)}.radio-label input[type=radio]{margin-top:4px}.input-field{width:100%;padding:12px;border:1px solid #e0e0e0;border-radius:8px;font-family:Roboto,sans-serif;font-size:14px;margin-top:8px}.input-field:focus{outline:none;border-color:var(--primary)}.desktop-only{display:none!important}@media(min-width:769px){.desktop-only{display:inline-flex!important}}.mobile-only{display:none!important}@media(max-width:768px){.mobile-only{display:inline-flex!important}}