:root{color-scheme:light dark;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:linear-gradient(160deg,#eef2ff,#e0f2fe,#ede9fe);color:#111827;line-height:1.6}#root{min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.section{padding:4rem 0}.header{background:#fffffff2;backdrop-filter:blur(10px);border-bottom:1px solid rgba(226,232,240,.5);position:sticky;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center;padding:1rem 0}.brand{font-size:1.5rem;font-weight:700;letter-spacing:.04em;color:#1f2937;text-decoration:none}.nav-links{display:flex;gap:2rem;align-items:center}.nav-link{color:#64748b;text-decoration:none;font-weight:500;transition:color .2s}.nav-link:hover{color:#3b82f6}.language-selector{position:relative}.language-button{background:transparent;border:1px solid #e2e8f0;border-radius:8px;padding:.5rem 1rem;font-size:.875rem;color:#64748b;cursor:pointer;display:flex;align-items:center;gap:.5rem;transition:all .2s}.language-button:hover{border-color:#3b82f6;color:#3b82f6}.hero{text-align:center;padding:6rem 0}.hero-title{font-size:3.5rem;font-weight:800;color:#1f2937;margin-bottom:1rem;line-height:1.2}.hero-subtitle{font-size:1.25rem;color:#3b82f6;margin-bottom:1.5rem;font-weight:500}.hero-description{font-size:1.125rem;color:#64748b;max-width:600px;margin:0 auto 2rem}.hero-cta{background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff;border:none;border-radius:12px;padding:1rem 2rem;font-size:1.125rem;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:0 4px 12px #3b82f64d}.hero-cta:hover{transform:translateY(-2px);box-shadow:0 8px 20px #3b82f666}.category-tabs{display:flex;justify-content:center;gap:1rem;margin-bottom:3rem;flex-wrap:wrap}.category-tab{background:#fffc;border:2px solid transparent;border-radius:12px;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;color:#64748b;cursor:pointer;transition:all .2s;text-decoration:none;display:flex;align-items:center;gap:.5rem}.category-tab:hover{background:#fffffff2;color:#3b82f6}.category-tab.active{background:#fff;border-color:#3b82f6;color:#3b82f6;box-shadow:0 4px 12px #3b82f626}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;margin-bottom:4rem}.tool-card{background:#ffffffe0;backdrop-filter:blur(16px);border-radius:18px;padding:1.5rem;text-decoration:none;color:inherit;transition:all .3s cubic-bezier(.4,0,.2,1);border:1px solid transparent;display:flex;flex-direction:column;position:relative;overflow:hidden}.tool-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#3b82f6,#8b5cf6);transform:scaleX(0);transition:transform .3s}.tool-card:hover{transform:translateY(-4px);box-shadow:0 20px 40px #0f172a26;border-color:#3b82f633}.tool-card:hover:before{transform:scaleX(1)}.tool-icon{font-size:2.5rem;margin-bottom:1rem;display:block}.tool-title{font-size:1.25rem;font-weight:600;color:#1f2937;margin-bottom:.5rem}.tool-description{color:#64748b;font-size:.875rem;margin-bottom:1rem;flex-grow:1}.tool-meta{display:flex;align-items:center;justify-content:space-between;font-size:.75rem}.tool-tag{background:#3b82f61a;color:#3b82f6;padding:.25rem .75rem;border-radius:20px;font-weight:500}.tool-arrow{color:#94a3b8;transition:transform .2s}.tool-card:hover .tool-arrow{transform:translate(4px);color:#3b82f6}.about{background:#ffffff80;border-radius:24px;padding:3rem;text-align:center}.about-title{font-size:2rem;font-weight:700;color:#1f2937;margin-bottom:1rem}.about-description{color:#64748b;max-width:600px;margin:0 auto 2rem;line-height:1.7}.about-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;max-width:600px;margin:0 auto}.about-feature{background:#fff;padding:1rem;border-radius:12px;font-size:.875rem;color:#475569;box-shadow:0 2px 8px #0f172a14}.about-feedback{margin-top:2rem;text-align:center}.about-feedback-title{font-size:1.125rem;font-weight:600;color:#1f2937;margin-bottom:1rem}.about-feedback-link{display:inline-flex;align-items:center;gap:.5rem;background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff;text-decoration:none;padding:.75rem 1.5rem;border-radius:12px;font-weight:500;transition:all .2s;box-shadow:0 4px 12px #3b82f64d}.about-feedback-link:hover{transform:translateY(-2px);box-shadow:0 8px 20px #3b82f666}.about-feedback-link:after{content:"→";transition:transform .2s}.about-feedback-link:hover:after{transform:translate(4px)}.footer{background:#fffc;border-top:1px solid rgba(226,232,240,.5);padding:2rem 0;margin-top:4rem}.footer-content{text-align:center;color:#64748b;font-size:.875rem}.footer-link{color:#3b82f6;text-decoration:none}.footer-link:hover{text-decoration:underline}@media (max-width: 768px){.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1.125rem}.hero-description{font-size:1rem}.category-tabs{gap:.5rem}.category-tab{padding:.5rem 1rem;font-size:.875rem}.tools-grid{grid-template-columns:1fr}.about{padding:2rem 1.5rem}.about-features{grid-template-columns:1fr}.nav-links{gap:1rem}.header-content{flex-direction:column;gap:1rem}}