:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.item-card{background:#1a1a1a;border:2px solid #2a2a2a;border-radius:16px;padding:1.5rem;transition:all .3s ease;display:flex;flex-direction:column;gap:1rem}.item-card:hover{border-color:#444;transform:translateY(-4px);box-shadow:0 8px 24px #0006}.item-card.favorite{border-color:#fbbf24;background:linear-gradient(135deg,#1a1a1a,#2a1f0a)}.item-card.editing{border-color:#3b82f6;background:#1e293b}.card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem}.card-header h3{margin:0;font-size:1.25rem;color:#fff;flex:1}.btn-favorite{background:transparent;border:2px solid #444;color:#666;font-size:1.5rem;cursor:pointer;padding:.25rem .5rem;border-radius:8px;transition:all .2s}.btn-favorite:hover{border-color:#fbbf24;color:#fbbf24;transform:scale(1.15)}.btn-favorite.active{border-color:#fbbf24;color:#fbbf24;background:#fbbf241a}.item-url{display:block;color:#60a5fa;text-decoration:none;font-size:.875rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.item-url:hover{text-decoration:underline}.tags{display:flex;flex-wrap:wrap;gap:.5rem}.actions{display:flex;gap:.5rem;padding-top:1rem;border-top:1px solid #2a2a2a}.actions button{flex:1;padding:.625rem 1rem;border:none;border-radius:8px;cursor:pointer;font-size:.875rem;font-weight:600;transition:all .2s}.actions button:first-child{background:transparent;border:2px solid #444;color:#999}.actions button:nth-child(2){background:#3b82f6;color:#fff}.actions button:nth-child(2):hover{background:#2563eb}.actions button:last-child{background:#dc2626;color:#fff}.actions button:last-child:hover{background:#b91c1c}.edit-form{display:flex;flex-direction:column;gap:1rem}.edit-input{background:#0f172a;border:2px solid #334155;color:#fff;padding:.75rem 1rem;border-radius:8px;font-size:1rem}.edit-input:focus{outline:none;border-color:#3b82f6}.edit-actions{display:flex;gap:.5rem}.edit-actions button{flex:1;padding:.75rem 1rem;border:none;border-radius:8px;cursor:pointer;font-weight:600}.edit-actions button:first-child{background:#64748b;color:#fff}.edit-actions button:last-child{background:#10b981;color:#fff}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#0a0a0a;color:#e5e5e5}.app{min-height:100vh;padding:2rem;max-width:1400px;margin:0 auto}.app h1{text-align:center;font-size:2.5rem;margin-bottom:2rem;color:#fff}.app-main{display:flex;flex-direction:column;gap:2rem}.filter-section{display:flex;flex-direction:column;gap:1rem}.search-input{width:100%;padding:1rem 1.25rem;background:#1a1a1a;border:2px solid #333;border-radius:12px;color:#fff;font-size:1rem}.search-input:focus{outline:none;border-color:#3b82f6}.tag-filter{display:flex;gap:.75rem;flex-wrap:wrap;justify-content:center}.tag-filter button{padding:.625rem 1.25rem;background:#1a1a1a;border:2px solid #333;color:#999;border-radius:10px;cursor:pointer;font-size:.875rem;font-weight:600;transition:all .2s}.tag-filter button:hover{border-color:#555;color:#fff}.tag-filter button.active{background:#3b82f6;border-color:#3b82f6;color:#fff}.app-content{width:100%}.item-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem;justify-items:center}.item-list>*{width:100%;max-width:400px}.empty-state{text-align:center;padding:4rem 2rem;color:#666;grid-column:1 / -1}@media(max-width:768px){.app{padding:1rem}.app h1{font-size:2rem}.item-list{grid-template-columns:1fr}}