:root{--color-bg: #f5f6f8;--color-panel: #ffffff;--color-border: #e2e5ea;--color-text: #1f2430;--color-muted: #6b7280;--color-accent: #2563eb;font-family:system-ui,-apple-system,Segoe UI,Hiragino Sans,Noto Sans JP,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--color-bg);color:var(--color-text)}.workspace{display:grid;grid-template-rows:auto 1fr;height:100vh}.workspace__header{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--color-panel);border-bottom:1px solid var(--color-border)}.workspace__title{font-size:15px;font-weight:600}.workspace__body{display:grid;grid-template-columns:260px 1fr 320px;min-height:0}.pane{display:flex;flex-direction:column;min-height:0;background:var(--color-panel);border-right:1px solid var(--color-border);overflow:hidden}.pane:last-child{border-right:none;border-left:1px solid var(--color-border)}.pane__header{padding:10px 14px;font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--color-muted);border-bottom:1px solid var(--color-border)}.pane__body{flex:1;min-height:0;overflow-y:auto;padding:8px}.room-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}.room-item{width:100%;text-align:left;border:1px solid transparent;background:transparent;border-radius:8px;padding:10px 12px;cursor:pointer;font:inherit;color:inherit}.room-item:hover{background:var(--color-bg)}.room-item[aria-current=true]{background:#eef3ff;border-color:#c7d7ff}.room-item__title{font-size:14px;font-weight:600}.room-item__status{margin-top:4px;font-size:11px;color:var(--color-muted)}.room-create{display:flex;gap:6px;padding:8px 14px;border-bottom:1px solid var(--color-border)}.room-create__input{flex:1;min-width:0;padding:6px 8px;font:inherit;border:1px solid var(--color-border);border-radius:6px}.room-create__button{padding:6px 10px;font:inherit;font-weight:600;color:#fff;background:var(--color-accent);border:none;border-radius:6px;cursor:pointer}.room-create__button:disabled{opacity:.5;cursor:not-allowed}.timeline-actions{display:flex;align-items:center;gap:8px;margin-bottom:12px}.action-button{padding:8px 14px;font:inherit;font-weight:600;color:#fff;background:var(--color-accent);border:none;border-radius:6px;cursor:pointer}.action-button:disabled{opacity:.5;cursor:not-allowed}.action-error{font-size:12px;color:#b91c1c}.timeline-event__detail{color:var(--color-muted)}.timeline{display:flex;flex-direction:column;gap:10px}.timeline-event{border:1px solid var(--color-border);border-radius:8px;padding:10px 12px;background:var(--color-panel)}.timeline-event__meta{font-size:11px;color:var(--color-muted)}.timeline-event__body{margin-top:4px;font-size:14px}.artifact{border:1px solid var(--color-border);border-radius:8px;padding:12px;margin-bottom:10px}.artifact__title{font-size:13px;font-weight:600}.artifact__desc{margin-top:6px;font-size:13px;color:var(--color-muted)}.issue-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.issue-item{display:flex;align-items:flex-start;gap:8px;border:1px solid var(--color-border);border-radius:8px;padding:10px 12px}.issue-item__title{font-size:13px;line-height:1.4}.severity-badge{flex-shrink:0;padding:2px 6px;font-size:10px;font-weight:700;letter-spacing:.04em;border-radius:4px;color:#fff}.severity-badge--info{background:#6b7280}.severity-badge--low{background:#2563eb}.severity-badge--medium{background:#d97706}.severity-badge--high{background:#dc2626}.empty{color:var(--color-muted);font-size:13px;padding:12px}