:root[data-theme=light]{--bg: #ffffff;--surface: #f5f5f5;--surface-2: #ebebeb;--text-primary: #0a0a0a;--text-secondary: #555555;--border: #e0e0e0;--accent: #0a0a0a;--accent-fg: #ffffff;--tag-bg: #ebebeb;--tag-text: #333333;--status-unread: #0a0a0a;--status-reading: #555;--status-done: #aaa}:root[data-theme=dark]{--bg: #0a0a0a;--surface: #141414;--surface-2: #1e1e1e;--text-primary: #f5f5f5;--text-secondary: #999999;--border: #2a2a2a;--accent: #f5f5f5;--accent-fg: #0a0a0a;--tag-bg: #1e1e1e;--tag-text: #cccccc;--status-unread: #f5f5f5;--status-reading: #aaa;--status-done: #555}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe 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var(--border)}.status-badge[data-status=reading]{color:var(--status-reading);background:transparent;border:1px solid var(--border)}.status-badge[data-status=done]{color:var(--status-done);background:transparent;border:1px solid var(--border)}.status-badge[data-status=archived]{color:var(--text-secondary);background:transparent;border:1px dashed var(--border)}.spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite;vertical-align:middle}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:64px 24px;color:var(--text-secondary);text-align:center}.empty-state-icon{font-size:32px}.empty-state 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.2s;font-style:normal}.bc-summary-toggle[aria-expanded=true] .bc-summary-chevron{transform:rotate(180deg)}.bc-summary{margin-top:8px;font-size:13px;color:var(--text-secondary);line-height:1.6;border-top:1px solid var(--border);padding-top:10px}.bc-ai-panel{margin-top:10px}.bc-summary-label{display:flex;align-items:center;gap:6px;font-size:11px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px}.bc-model-tag{font-size:10px;font-weight:500;background:var(--surface-2);color:var(--text-secondary);padding:1px 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h3{font-size:13px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:12px}.settings-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--border);gap:16px}.settings-row:last-child{border-bottom:none}.settings-row-label{font-size:14px;font-weight:500}.settings-row-desc{font-size:12px;color:var(--text-secondary);margin-top:2px}.settings-row-control{flex-shrink:0}.key-status{font-size:12px;padding:2px 8px;border-radius:4px;font-weight:500}.key-status.set{background:#d4edda;color:#155724}.key-status.missing{background:#fff3cd;color:#856404}[data-theme=dark] .key-status.set{background:#1a3a25;color:#7adb8f}[data-theme=dark] 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