.upload-section{background:var(--input-bg);border:2.5px dashed var(--border-color-dashed);border-radius:36px 80px/60px 36px 80px;padding:40px 0 30px;text-align:center;box-shadow:0 4px 24px 0 var(--shadow-md);margin-bottom:24px;transition:border-color .2s,background .2s,box-shadow .2s;position:relative;z-index:1}.upload-section.dragover{border-color:var(--border-color-hover);background:var(--header-bg);box-shadow:0 8px 32px 0 var(--shadow-xl)}.upload-btn{background:var(--interactive-bg);color:var(--text-color);padding:12px 30px;border:2.5px solid var(--border-color);border-radius:24px 48px/36px 24px 48px;font-size:16px;cursor:pointer;font-weight:700;box-shadow:0 2px 8px 0 var(--shadow-md);display:inline-block;margin:10px;transition:box-shadow .2s,color .2s,border-color .2s,background .2s}.upload-btn:hover{color:var(--interactive-text-hover);background:var(--interactive-bg-hover);border-color:var(--interactive-bg-hover);box-shadow:0 8px 32px 0 var(--shadow-xl)}.url-input-group{display:flex;gap:10px;margin-top:20px}.url-input{flex:1;margin-top:0;padding:12px 20px;border:2.5px solid var(--border-color);border-radius:24px 48px/36px 24px 48px;font-size:16px;transition:border-color .2s,box-shadow .2s;background:var(--input-bg);color:var(--text-color);box-shadow:0 1.5px 6px 0 var(--shadow-sm)}.url-input:focus{outline:none;border-color:var(--border-color-hover);box-shadow:0 4px 16px 0 var(--shadow-lg)}.submit-btn:hover{color:var(--interactive-text-hover);background:var(--interactive-bg-hover);border-color:var(--interactive-bg-hover);box-shadow:0 8px 32px 0 var(--shadow-xl)}.submit-btn:disabled{opacity:.5;cursor:not-allowed}.file-list,.url-list{margin:20px 0;text-align:left}.file-list h4,.url-list h4{color:var(--text-color);margin-bottom:10px;font-size:16px}.file-item,.url-item{display:flex;justify-content:space-between;align-items:center;padding:8px 16px;background:var(--box-bg);border:1.5px solid 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var(--shadow-sm);text-align:center}.status-message.show{display:block}.status-message.success{background:var(--input-bg);color:var(--text-color);border-color:var(--border-color)}.status-message.error{background:var(--input-bg);color:var(--error-color);border-color:var(--error-border-color)}.process-results{margin:20px 0;text-align:left}.process-results h4{color:var(--text-color);margin-bottom:12px;font-size:16px}.result-item{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;margin:8px 0;border-radius:16px 32px/24px 16px 32px;box-shadow:0 1px 4px 0 var(--shadow-sm);border:1.5px solid}.result-item.success{background:var(--box-bg);border-color:var(--border-color)}.result-item.error{background:var(--input-bg);border-color:var(--error-border-color)}.result-info{display:flex;align-items:center;gap:8px;flex:1}.result-icon{font-size:16px}.result-name{font-weight:600;color:var(--text-color);word-break:break-all}.result-type{font-size:12px;color:var(--text-color-subtle);font-style:italic}.result-doc-id{font-size:12px;color:var(--text-color-light);font-family:monospace}.result-error{font-size:12px;color:var(--error-color);max-width:200px;word-break:break-word}.query-prompt{margin-top:20px;padding:16px;background:var(--results-bg);border:2px solid var(--border-color);border-radius:24px 48px/36px 24px 48px;text-align:center;box-shadow:0 2px 8px 0 var(--shadow-md)}.query-prompt p{margin:0 0 12px;color:var(--text-color);font-weight:600}.go-to-query-btn{background:var(--interactive-bg);color:var(--text-color);border:2px solid var(--border-color);border-radius:20px 40px/30px 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var(--border-color);border-radius:24px 48px/36px 24px 48px;font-size:16px;transition:border-color .2s,box-shadow .2s;resize:vertical;min-height:60px;background:var(--input-bg);color:var(--text-color);box-shadow:0 1.5px 6px 0 var(--shadow-sm)}.submit-btn{background:var(--interactive-bg);color:var(--text-color);padding:12px 40px;border:2.5px solid var(--border-color);border-radius:24px 48px/36px 24px 48px;font-size:16px;cursor:pointer;font-weight:700;margin-top:15px;display:block;margin-left:auto;box-shadow:0 2px 8px 0 var(--shadow-md);transition:box-shadow .2s,color .2s,border-color .2s,background .2s}.example-queries{margin-top:20px;padding:15px 0 0;background:none;border:none;border-top:2.5px solid var(--border-color);border-radius:0}.example-queries h4{color:var(--text-color);margin-bottom:10px}.example-query{display:inline-block;padding:8px 18px;background:var(--interactive-bg);border:2.5px solid var(--border-color);border-radius:24px 48px/36px 24px 48px;margin:5px 10px 5px 0;cursor:pointer;font-size:14px;color:var(--text-color);font-weight:600;box-shadow:0 1.5px 6px 0 var(--shadow-sm);transition:box-shadow .2s,color .2s,border-color .2s,background .2s}.example-query:hover{color:var(--interactive-text-hover);background:var(--interactive-bg-hover);border-color:var(--interactive-bg-hover);box-shadow:0 8px 32px 0 var(--shadow-xl)}.results-section{margin-top:40px;padding:32px 32px 0;background:var(--results-bg);border-radius:36px 80px/60px 36px 80px;box-shadow:0 4px 24px 0 var(--shadow-md);position:relative;z-index:1}.result-header{font-size:18px;font-weight:700;color:var(--text-color);margin-bottom:15px;border-bottom:2.5px solid var(--border-color);padding-bottom:5px}.answer-box{background:var(--box-bg);padding:24px;border-radius:24px 48px/36px 24px 48px;margin-bottom:20px;box-shadow:0 1.5px 6px 0 var(--shadow-sm)}.answer-box.pretext-paper{background:#fbfbf9;border:1.5px solid #e3e3dc;box-shadow:0 4px 16px #00000008,inset 0 0 40px #00000001;padding:32px 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30px;box-shadow:none;border:none}button,input,textarea{border-radius:16px!important;min-height:44px}}[data-theme=dark]{--bg-color: #121212;--text-color: #f5f5f5;--text-color-subtle: #a0a0a0;--text-color-light: #bbbbbb;--primary-accent: #bb86fc;--primary-accent-hover: #d1c4e9;--container-bg: rgba(24, 26, 27, .85);--header-bg: rgba(30, 32, 33, .92);--interactive-bg: rgba(40, 42, 43, .85);--interactive-bg-hover: #bb86fc;--interactive-text-hover: #121212;--input-bg: rgba(40, 42, 43, .7);--box-bg: rgba(40, 42, 43, .7);--results-bg: rgba(30, 32, 33, .92);--border-color: #bb86fc;--border-color-dashed: #777;--border-color-hover: #d1c4e9;--error-color: #cf6679;--error-border-color: #cf6679;--spinner-bg: #121212;--spinner-fg: #bb86fc;--shadow-sm: rgba(255, 255, 255, .05);--shadow-md: rgba(255, 255, 255, .08);--shadow-lg: rgba(255, 255, 255, .12);--shadow-xl: rgba(255, 255, 255, .15);--header-line-color: #bb86fc;--header-line-opacity: .3;--svg-bg-url: url('data:image/svg+xml;utf8,<svg width="100%25" height="100%25" xmlns="http://www.w3.org/2000/svg"><path d="M0,100 Q200,200 400,100 T800,100 T1200,100" stroke="%23f5f5f5" stroke-width="3" fill="none" opacity="0.08"/><path d="M0,300 Q300,400 600,300 T1200,300" stroke="%23f5f5f5" stroke-width="2" fill="none" opacity="0.06"/><path d="M0,500 Q200,600 400,500 T800,500 T1200,500" stroke="%23f5f5f5" stroke-width="2" fill="none" opacity="0.05"/></svg>')}.site-footer{margin-top:40px;padding:24px;text-align:center;border-top:1px solid var(--border-color);color:var(--text-color-subtle);background:var(--container-bg);font-size:14px}.site-footer p{margin-bottom:12px}.footer-links{display:flex;justify-content:center;flex-wrap:wrap;gap:0 20px}.footer-links a{display:inline-flex;align-items:center;min-height:44px;padding:0 4px;color:var(--text-color);text-decoration:none;font-weight:500;transition:color .2s}.footer-links a:hover{color:var(--primary-accent);text-decoration:underline}.single-page{display:flex;flex-direction:column;gap:32px}.page-section{scroll-margin-top:24px}@media (max-width: 768px){.single-page{gap:20px}}