:root{--bg: #f7f7f8;--card-bg: #ffffff;--border: #e2e2e6;--text: #1c1c1f;--muted: #6b6b73;--accent: #2f5fed;--accent-hover: #2448c0;--error: #c0392b;--caveat-bg: #fff8e6;--caveat-border: #f0c14b}@media (prefers-color-scheme: dark){:root{--bg: #16161a;--card-bg: #202024;--border: #33333a;--text: #eaeaec;--muted: #9a9aa2;--accent: #6d8bff;--accent-hover: #8ba0ff;--error: #ff6b5e;--caveat-bg: #2b2410;--caveat-border: #7a5c12}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.app{max-width:960px;margin:0 auto;padding:24px 20px 64px}.app-header{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:24px}.app-header h1{font-size:1.4rem;margin:0}.link-button{background:none;border:none;color:var(--accent);cursor:pointer;font-size:.9rem;padding:0}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:20px}.card h2{margin-top:0;font-size:1.1rem}.muted{color:var(--muted);font-size:.9rem}.error{color:var(--error);font-size:.9rem}button{background:var(--accent);color:#fff;border:none;border-radius:8px;padding:10px 18px;font-size:.95rem;cursor:pointer}button:hover:not(:disabled){background:var(--accent-hover)}button:disabled{opacity:.5;cursor:not-allowed}button.secondary{background:transparent;color:var(--accent);border:1px solid var(--accent)}.actions{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap}input[type=text]{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text);font-size:.95rem}.field{display:block;margin:16px 0;font-size:.9rem;color:var(--muted)}.field input{margin-top:6px}.file-list{list-style:none;padding:0;margin:12px 0}.file-list li{font-size:.9rem;padding:4px 0}.dim-list{display:flex;flex-direction:column;gap:8px;margin:16px 0}.dim-item{display:flex;align-items:center;gap:8px;font-size:.95rem;cursor:pointer}.spinner{width:28px;height:28px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin-top:12px}@keyframes spin{to{transform:rotate(360deg)}}.results{display:flex;flex-direction:column;gap:20px}.table-wrap{overflow-x:auto;background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:8px}.comparison-table{width:100%;border-collapse:collapse;font-size:.9rem}.comparison-table th,.comparison-table td{text-align:left;padding:12px;border-bottom:1px solid var(--border);vertical-align:top}.comparison-table thead th{color:var(--muted);font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.02em}.comparison-table tbody th{font-weight:600;white-space:nowrap}.comparison-table td.has-caveat{background:var(--caveat-bg);border-left:3px solid var(--caveat-border)}.cell-value{font-weight:500}.caveats{margin:6px 0 0;padding-left:0;list-style:none;font-size:.82rem;color:var(--muted)}.caveats li{margin-top:4px}.citation{margin-top:6px;font-size:.75rem;color:var(--muted)}.chat-panel{display:flex;flex-direction:column}.chat-history{display:flex;flex-direction:column;gap:10px;max-height:360px;overflow-y:auto;padding:4px 2px;margin-bottom:12px}.chat-msg{display:flex}.chat-msg.user{justify-content:flex-end}.chat-bubble{max-width:80%;padding:10px 14px;border-radius:12px;font-size:.9rem;white-space:pre-wrap;background:var(--bg);border:1px solid var(--border)}.chat-msg.user .chat-bubble{background:var(--accent);color:#fff;border-color:var(--accent)}.chat-input{display:flex;gap:10px}