:root{--bg: #0d1117;--bg-elevated: #161b22;--bg-hover: #1c2230;--border: #30363d;--border-subtle: #21262d;--text: #e6edf3;--text-muted: #8b949e;--text-faint: #6e7681;--accent: #58a6ff;--danger: #f85149;--author-human: #7ee787;--author-agent: #58a6ff;--author-tool: #d2a8ff;--author-system: #8b949e;color-scheme:dark}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;font-size:14px;line-height:1.5}code,pre{font-family:SF Mono,Monaco,Menlo,Courier New,monospace;font-size:12px}button,input,select{font-family:inherit;font-size:inherit}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.app-shell{display:flex;flex-direction:column;min-height:100%}.app-header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--border);background:var(--bg-elevated)}.app-header h1{margin:0;font-size:16px;font-weight:600}.app-header-right{display:flex;align-items:center;gap:12px}.app-user{color:var(--text-muted);font-size:13px}.app-main{flex:1;padding:20px;max-width:1100px;width:100%;margin:0 auto}.app-splash{display:flex;align-items:center;justify-content:center;min-height:100vh}.spinner{width:24px;height:24px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.btn{background:var(--bg-elevated);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 12px;cursor:pointer;transition:background .1s,border-color .1s}.btn:hover{background:var(--bg-hover);border-color:var(--text-muted)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-link{background:none;border:none;color:var(--accent);cursor:pointer;padding:0;font-size:13px}.btn-link:hover{text-decoration:underline}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.login-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:10px;padding:36px 32px;text-align:center;max-width:340px;width:100%}.login-card h1{margin:0 0 6px;font-size:20px}.login-card p{color:var(--text-muted);margin:0 0 24px;font-size:13px}.login-error{color:var(--danger);font-size:13px;margin-top:12px}.filter-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end;margin-bottom:16px;padding:14px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:8px}.filter-field{display:flex;flex-direction:column;gap:4px}.filter-field label{color:var(--text-muted);font-size:11px;text-transform:uppercase;letter-spacing:.05em}.filter-field input{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:4px;padding:6px 8px;min-width:180px}.filter-field input:focus{outline:none;border-color:var(--accent)}.filter-field.session{flex:1;min-width:260px}.filter-actions{display:flex;gap:8px;padding-bottom:1px}.message-list{display:flex;flex-direction:column;gap:10px}.message-block{border:1px solid var(--border-subtle);border-radius:8px;background:var(--bg-elevated);overflow:hidden}.message-block.author-human{border-left:3px solid var(--author-human)}.message-block.author-agent{border-left:3px solid var(--author-agent)}.message-block.author-tool{border-left:3px solid var(--author-tool)}.message-block.author-system{border-left:3px solid var(--author-system);background:var(--bg)}.message-header{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:8px 12px;font-size:12px;color:var(--text-muted);border-bottom:1px solid var(--border-subtle)}.author-badge{padding:2px 8px;border-radius:10px;font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.05em}.author-badge.human{background:#7ee78726;color:var(--author-human)}.author-badge.agent{background:#58a6ff26;color:var(--author-agent)}.author-badge.tool{background:#d2a8ff26;color:var(--author-tool)}.author-badge.system{background:#8b949e26;color:var(--author-system)}.header-timestamp{color:var(--text)}.header-relative,.header-meta{color:var(--text-faint)}.header-session{color:var(--text-faint);font-family:SF Mono,Monaco,Menlo,monospace;font-size:11px}.message-body{padding:12px}.message-text{white-space:pre-wrap;word-break:break-word;line-height:1.6}.tool-use-card,.tool-result-card,.system-chip,.payload-dump{margin-top:8px;border:1px solid var(--border-subtle);border-radius:6px;background:var(--bg)}.tool-use-card summary,.tool-result-card summary,.system-chip summary,.payload-dump summary{padding:6px 10px;font-size:12px;color:var(--text-muted);cursor:pointer;-webkit-user-select:none;user-select:none}.tool-use-card summary:hover,.tool-result-card summary:hover,.system-chip summary:hover,.payload-dump summary:hover{color:var(--text)}.tool-use-card .tool-name{color:var(--author-tool);font-family:SF Mono,Monaco,Menlo,monospace}.tool-use-card pre,.tool-result-card pre,.system-chip pre,.payload-dump pre{margin:0;padding:10px 12px;background:var(--bg);overflow-x:auto;border-top:1px solid var(--border-subtle);white-space:pre-wrap;word-break:break-word;max-height:400px;overflow-y:auto}.load-more{display:flex;justify-content:center;padding:16px 0}.status-line{padding:20px;text-align:center;color:var(--text-muted)}.status-line.error{color:var(--danger)}.app-nav{display:flex;gap:2px;padding:0 20px;border-bottom:1px solid var(--border);background:var(--bg-elevated)}.app-nav a{display:inline-block;padding:10px 14px;color:var(--text-muted);text-decoration:none;border-bottom:2px solid transparent;transition:color .1s,border-color .1s;margin-bottom:-1px}.app-nav a:hover{color:var(--text);text-decoration:none}.app-nav a[aria-current=page]{color:var(--text);border-bottom-color:var(--accent)}.error-block{border-left:3px solid var(--danger)}.level-badge{padding:2px 8px;border-radius:10px;font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.05em;background:#f8514926;color:var(--danger)}.subsystem-badge{padding:2px 8px;border-radius:4px;font-family:SF Mono,Monaco,Menlo,monospace;font-size:11px;background:var(--bg);color:var(--text);border:1px solid var(--border-subtle)}.error-message{font-weight:500;color:var(--text)}.error-fields{margin-top:6px;padding:8px 10px;background:var(--bg);border:1px solid var(--border-subtle);border-radius:4px;font-family:SF Mono,Monaco,Menlo,monospace;font-size:12px;word-break:break-word}.error-name{color:var(--danger);font-weight:600}.error-detail{color:var(--text-muted)}