:root{--bg-color:#0f172a;--surface:#1e293b;--primary:#f59e0b;--text-main:#f8fafc;--text-muted:#94a3b8;--border:#334155;--radius:16px;--transition:all .2s ease-out}:root.light-mode{--bg-color:#f8fafc;--surface:#fff;--text-main:#0f172a;--text-muted:#64748b;--border:#e2e8f0}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-main);min-height:100vh;font-family:Inter,system-ui,sans-serif;line-height:1.5}#app{flex-direction:column;max-width:1100px;min-height:100vh;margin:0 auto;padding:0 2rem;display:flex}.header{justify-content:space-between;align-items:center;padding:2rem 0;display:flex}.logo{letter-spacing:-.05em;cursor:pointer;align-items:center;gap:.75rem;font-size:1.5rem;font-weight:800;display:flex}.cat-icon,.highlight{color:var(--primary)}.upgrade-btn{color:#fff;cursor:pointer;transition:var(--transition);background:linear-gradient(135deg,#f59e0b,#d97706);border:none;border-radius:999px;padding:.6rem 1.25rem;font-weight:600;box-shadow:0 4px 14px #f59e0b4d}.upgrade-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #f59e0b66}.hero{text-align:center;margin:5rem 0}.hero h2{letter-spacing:-.05em;background:linear-gradient(90deg,#fff,#94a3b8);color:#0000;-webkit-background-clip:text;background-clip:text;margin-bottom:1rem;font-size:3.5rem;font-weight:800;line-height:1.1}.hero p{color:var(--text-muted);font-size:1.25rem}.tool-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-bottom:5rem;display:grid}.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;will-change:transform, opacity;padding:2rem;transition:border-color .2s ease-out,box-shadow .2s ease-out;position:relative;overflow:hidden}.tool-card:hover{border-color:var(--primary);box-shadow:0 10px 30px #0003}.tool-icon{margin-bottom:1rem;font-size:2.5rem}.tool-card h3{margin-bottom:.5rem;font-size:1.25rem}.tool-card p{color:var(--text-muted);font-size:.95rem}footer{text-align:center;color:var(--text-muted);border-top:1px solid var(--border);margin-top:auto;padding:2rem 0;font-size:.875rem}.hidden{display:none!important}.tool-view{display:none}.tool-view.active{display:block}.tool-header{margin-bottom:2rem}.tool-header h2{margin-bottom:.5rem;font-size:2rem}.tool-header p{color:var(--text-muted)}.upload-area{border:2px dashed var(--border);border-radius:var(--radius);text-align:center;cursor:pointer;will-change:box-shadow, border-color;background:#1e293b80;padding:4rem 2rem;transition:border-color .2s ease-out,background .2s ease-out}.upload-area:hover,.upload-area.dragover{border-color:var(--primary);background:#f59e0b0d}.hero-badge{color:#f59e0b;letter-spacing:.03em;background:#f59e0b1f;border:1px solid #f59e0b59;border-radius:999px;margin-bottom:1.25rem;padding:.35rem .9rem;font-size:.8rem;font-weight:600;display:inline-block}.search-wrapper{align-items:center;max-width:560px;margin:2rem auto 0;display:flex;position:relative}.search-wrapper .search-icon{pointer-events:none;opacity:.6;font-size:1rem;position:absolute;left:1.1rem}#tool-search{background:var(--surface);border:1.5px solid var(--border);width:100%;color:var(--text-main);border-radius:999px;outline:none;padding:.85rem 3rem .85rem 2.8rem;font-family:inherit;font-size:1rem;transition:border-color .2s ease-out,box-shadow .2s ease-out}#tool-search:focus{border-color:var(--primary);box-shadow:0 0 0 3px #f59e0b33}#tool-search::placeholder{color:var(--text-muted)}.search-kbd{border:1px solid var(--border);color:var(--text-muted);pointer-events:none;background:#ffffff0f;border-radius:5px;padding:.15rem .5rem;font-family:monospace;font-size:.75rem;position:absolute;right:1rem}.search-wrapper:focus-within .search-kbd{display:none}.category-nav{z-index:100;-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);background:#0f172aeb;flex-wrap:wrap;justify-content:center;gap:.5rem;margin:1.5rem -2rem 0;padding:.75rem 1rem;display:flex;position:sticky;top:0}.cat-nav-link{color:var(--text-muted);white-space:nowrap;border-radius:999px;padding:.35rem .85rem;font-size:.85rem;font-weight:500;text-decoration:none;transition:background .15s ease-out,color .15s ease-out}.cat-nav-link:hover{color:var(--primary);background:#f59e0b1f}.category-title{color:var(--text-main);text-align:center;justify-content:center;align-items:center;gap:.6rem;margin-top:3rem;margin-bottom:1.25rem;font-size:1.4rem;display:flex}.cat-count{color:var(--text-muted);font-size:.9rem;font-weight:400}.popular-card{background:linear-gradient(135deg, var(--surface), #f59e0b0d);border-color:#f59e0b4d!important}.popular-card:before{content:"⭐";opacity:.6;font-size:.8rem;position:absolute;top:.75rem;right:.75rem}.badge-new{color:#fff;letter-spacing:.05em;vertical-align:middle;background:linear-gradient(135deg,#10b981,#059669);border-radius:4px;margin-left:.4rem;padding:.15rem .45rem;font-size:.6rem;font-weight:700;animation:2.5s ease-in-out infinite badgePulse;display:inline-block}@keyframes badgePulse{0%,to{box-shadow:0 0 #10b98166}50%{box-shadow:0 0 0 5px #10b98100}}.back-to-top-btn{z-index:9000;background:var(--primary);color:#0f172a;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.25rem;font-weight:700;transition:transform .2s ease-out,box-shadow .2s ease-out;display:flex;position:fixed;bottom:2rem;right:2rem;box-shadow:0 4px 20px #f59e0b66}.back-to-top-btn:hover{transform:translateY(-3px);box-shadow:0 8px 28px #f59e0b8c}.light-mode .category-nav{background:#f8fafcf2}.light-mode #tool-search{background:#fff}.light-mode .popular-card{background:linear-gradient(135deg,#fff,#f59e0b12)}