@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap";:root{--bg:#fff;--bg-secondary:#f7f6f3;--text:#37352f;--text-secondary:#787774;--text-light:#9b9a97;--border:#37352f17;--border-hover:#37352f29;--accent:#2eaadc;--accent-bg:#2eaadc1a;--tag-bg:#cecdca80;--tag-venue:#2eaadc26;--tag-score:#34a85326;--score-color:#34a853;--error-bg:#fbe9e7;--error-text:#c62828;--radius:4px;--radius-lg:8px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}.app{min-height:100vh}.hero{justify-content:center;align-items:center;min-height:100vh;padding:2rem;display:flex}.hero-content{text-align:center;width:100%;max-width:600px}.hero-title{color:var(--text);letter-spacing:-.02em;margin-bottom:.5rem;font-size:2.5rem;font-weight:600}.hero-subtitle{color:var(--text-secondary);margin-bottom:2rem;font-size:1rem}.hero-search{flex-direction:column;gap:1rem;display:flex}.hero-input{border:1px solid var(--border);border-radius:var(--radius);resize:none;background:var(--bg);width:100%;color:var(--text);padding:1rem;font-family:inherit;font-size:1rem;line-height:1.6;transition:border-color .15s,box-shadow .15s}.hero-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg);outline:none}.hero-input::placeholder{color:var(--text-light)}.hero-btn{background:var(--accent);color:#fff;border-radius:var(--radius);cursor:pointer;border:none;padding:.75rem 1.5rem;font-family:inherit;font-size:.9375rem;font-weight:500;transition:opacity .15s}.hero-btn:hover:not(:disabled){opacity:.85}.hero-btn:disabled{opacity:.5;cursor:not-allowed}.compact-header{background:var(--bg);border-bottom:1px solid var(--border);z-index:100;position:sticky;top:0}.compact-header-inner{align-items:center;gap:1.5rem;width:100%;max-width:900px;margin-left:auto;margin-right:auto;padding:1rem 2rem;display:flex}.compact-brand h1{color:var(--text);white-space:nowrap;font-size:1.125rem;font-weight:600}.compact-search{flex:1;gap:.75rem;display:flex}.compact-input{border:1px solid var(--border);border-radius:var(--radius);resize:vertical;background:var(--bg-secondary);min-height:2.5rem;max-height:200px;color:var(--text);flex:1;padding:.5rem .75rem;font-family:inherit;font-size:.875rem;line-height:1.5;transition:border-color .15s,background .15s}.compact-input:focus{border-color:var(--border-hover);background:var(--bg);outline:none}.compact-input::placeholder{color:var(--text-light)}.compact-btn{background:var(--text);color:#fff;border-radius:var(--radius);cursor:pointer;white-space:nowrap;border:none;padding:.5rem 1rem;font-family:inherit;font-size:.875rem;font-weight:500;transition:opacity .15s}.compact-btn:hover:not(:disabled){opacity:.8}.compact-btn:disabled{opacity:.4;cursor:not-allowed}.results-container{max-width:900px;margin:0 auto;padding:1.5rem 2rem 3rem}.actions-bar{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1rem;padding-bottom:1rem;display:flex}.actions-right{align-items:center;gap:1rem;display:flex}.toggle-filters-btn{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);color:var(--text);cursor:pointer;padding:.5rem 1rem;font-family:inherit;font-size:.8125rem;transition:all .15s}.toggle-filters-btn:hover{border-color:var(--border-hover);background:var(--bg-secondary)}.toggle-filters-btn.active{background:var(--accent-bg);border-color:var(--accent);color:var(--accent)}.export-btn{border:1px solid var(--accent);border-radius:var(--radius);background:var(--bg);color:var(--accent);cursor:pointer;padding:.5rem 1rem;font-family:inherit;font-size:.8125rem;font-weight:500;transition:all .15s}.export-btn:hover{background:var(--accent);color:#fff}.results-count{color:var(--text-secondary);white-space:nowrap;font-size:.8125rem}.filters-panel{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);margin-bottom:1.5rem;padding:1.25rem}.filters-grid{flex-direction:column;gap:1rem;display:flex}.filter-section{flex-direction:column;gap:.375rem;display:flex}.filter-row{flex-direction:row;gap:1rem}.filter-half{flex-direction:column;flex:1;gap:.375rem;display:flex}.filter-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.025em;font-size:.75rem;font-weight:500}.filter-input-full,.filter-select-full{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);width:100%;color:var(--text);padding:.5rem .75rem;font-family:inherit;font-size:.875rem;transition:border-color .15s}.filter-input-full:focus,.filter-select-full:focus{border-color:var(--accent);outline:none}.filter-input-full::placeholder{color:var(--text-light)}.venue-chips{flex-wrap:wrap;gap:.5rem;display:flex}.venue-chip{border:1px solid var(--border);background:var(--bg);color:var(--text-secondary);cursor:pointer;border-radius:20px;padding:.375rem .75rem;font-family:inherit;font-size:.8125rem;transition:all .15s}.venue-chip:hover{border-color:var(--border-hover);color:var(--text)}.venue-chip.selected{background:var(--accent);border-color:var(--accent);color:#fff}.filter-actions{border-top:1px solid var(--border);gap:.75rem;margin-top:1rem;padding-top:1rem;display:flex}.filter-apply-btn{border-radius:var(--radius);background:var(--accent);color:#fff;cursor:pointer;border:none;padding:.5rem 1.25rem;font-family:inherit;font-size:.875rem;font-weight:500;transition:opacity .15s}.filter-apply-btn:hover{opacity:.85}.filter-clear-btn{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);color:var(--text-secondary);cursor:pointer;padding:.5rem 1.25rem;font-family:inherit;font-size:.875rem;transition:all .15s}.filter-clear-btn:hover{border-color:var(--border-hover);color:var(--text)}.paper-list{flex-direction:column;display:flex}.paper-card{border-bottom:1px solid var(--border);padding:1rem 0}.paper-card:last-child{border-bottom:none}.paper-header{justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:.25rem;display:flex}.paper-title{color:var(--text);font-size:.9375rem;font-weight:500;line-height:1.4}.paper-meta{flex-shrink:0;gap:.375rem;display:flex}.meta-tag{border-radius:var(--radius);background:var(--tag-bg);color:var(--text-secondary);white-space:nowrap;padding:.125rem .375rem;font-size:.6875rem}.meta-tag.venue{background:var(--tag-venue);color:var(--accent)}.meta-tag.score{background:var(--tag-score);color:var(--score-color);font-weight:500}.paper-authors{color:var(--text-secondary);margin-bottom:.25rem;font-size:.8125rem}.paper-affiliations{color:var(--text-light);margin-bottom:.5rem;font-size:.75rem;font-style:italic}.paper-abstract{color:var(--text-secondary);background:var(--bg-secondary);border-radius:var(--radius);margin-bottom:.5rem;padding:.75rem 1rem;font-size:.8125rem;line-height:1.6}.paper-links{gap:.5rem;display:flex}.link-btn{color:var(--accent);cursor:pointer;background:0 0;border:none;padding:.125rem 0;font-family:inherit;font-size:.75rem;text-decoration:none;transition:opacity .15s}.link-btn:hover{opacity:.7}.pagination{border-top:1px solid var(--border);justify-content:center;align-items:center;gap:1rem;margin-top:2rem;padding-top:1rem;display:flex}.page-btn{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);color:var(--text);cursor:pointer;padding:.375rem .75rem;font-family:inherit;font-size:.8125rem;transition:border-color .15s,background .15s}.page-btn:hover:not(:disabled){border-color:var(--border-hover);background:var(--bg-secondary)}.page-btn:disabled{opacity:.4;cursor:not-allowed}.page-info{color:var(--text-secondary);font-size:.8125rem}.loading{justify-content:center;padding:4rem 0;display:flex}.spinner{border:2px solid var(--border);border-top-color:var(--text);border-radius:50%;width:24px;height:24px;animation:.6s linear infinite spin}.error-message{background:var(--error-bg);color:var(--error-text);border-radius:var(--radius);margin-bottom:1rem;padding:.75rem 1rem;font-size:.875rem}.no-results{text-align:center;color:var(--text-secondary);padding:3rem 1rem;font-size:.875rem}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width:768px){.hero{padding:1.5rem}.hero-title{font-size:2rem}.compact-header-inner{flex-direction:column;align-items:stretch;gap:.75rem;padding:1rem}.results-container{padding:1rem}.actions-bar{flex-direction:column;align-items:stretch}.actions-right{justify-content:space-between}.filter-row{flex-direction:column;gap:1rem}.filter-actions{flex-direction:column}.filter-apply-btn,.filter-clear-btn{width:100%}.paper-header{flex-direction:column;gap:.5rem}.paper-meta{order:-1}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}