:root{--color-bg:#f5f6f8;--color-surface:#fff;--color-text:#1f2328;--color-muted:#656d76;--color-border:#d0d7de;--color-primary:#2563eb;--color-primary-hover:#1d4ed8;--color-open:#dc2626;--color-open-bg:#fee2e2;--color-progress:#b45309;--color-progress-bg:#fef3c7;--color-done:#15803d;--color-done-bg:#dcfce7;--radius:10px;color:var(--color-text);background:var(--color-bg);font-family:system-ui,-apple-system,Hiragino Sans,Noto Sans JP,Yu Gothic UI,sans-serif;line-height:1.6}@media (prefers-color-scheme:dark){:root{--color-bg:#0d1117;--color-surface:#161b22;--color-text:#e6edf3;--color-muted:#8b949e;--color-border:#30363d;--color-primary:#3b82f6;--color-primary-hover:#60a5fa;--color-open:#f87171;--color-open-bg:#3b1515;--color-progress:#fbbf24;--color-progress-bg:#3a2a0a;--color-done:#4ade80;--color-done-bg:#0f2e1a}}*,:before,:after{box-sizing:border-box}body{margin:0}main{max-width:640px;margin:0 auto;padding:16px 16px 48px}h1{margin:8px 0 16px;font-size:1.5rem}h2{margin:0 0 12px;font-size:1.15rem}a{color:var(--color-primary)}.back-link{margin-bottom:8px;font-size:.9rem;text-decoration:none;display:inline-block}.hint{color:var(--color-muted);margin:0 0 14px;font-size:.85rem}.action{margin-bottom:20px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);margin-bottom:20px;padding:16px}.card-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.card-header h2{margin:0}.close-button{color:var(--color-muted);cursor:pointer;background:0 0;border:none;padding:4px 8px;font-size:1.5rem;line-height:1}.committee-list{gap:12px;margin:0;padding:0;list-style:none;display:grid}.committee-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);color:inherit;padding:16px;text-decoration:none;transition:border-color .15s,transform .15s;display:block}.committee-card:hover{border-color:var(--color-primary);transform:translateY(-1px)}.committee-card.is-disabled{opacity:.55}.committee-name{font-size:1.1rem;font-weight:700;display:block}.committee-desc{color:var(--color-muted);font-size:.9rem;display:block}.button{color:#fff;background:var(--color-primary);border-radius:var(--radius);cursor:pointer;border:none;width:100%;padding:12px 16px;font-family:inherit;font-size:1rem;font-weight:600;display:block}.button:hover{background:var(--color-primary-hover)}.button:disabled{opacity:.6;cursor:not-allowed}.field{margin-bottom:14px}.field label{margin-bottom:4px;font-size:.9rem;font-weight:600;display:block}.field input,.field select,.field textarea{width:100%;color:var(--color-text);background:var(--color-bg);border:1px solid var(--color-border);border-radius:8px;padding:10px 12px;font-family:inherit;font-size:1rem}.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--color-primary);outline-offset:-1px;border-color:#0000}.required{color:var(--color-open);margin-left:4px;font-size:.8rem}.message-success,.message-error{border-radius:8px;margin:12px 0 0;padding:10px 12px}.message-success{color:var(--color-done);background:var(--color-done-bg)}.message-error{color:var(--color-open);background:var(--color-open-bg)}.filter-tabs{gap:8px;margin-bottom:12px;display:flex;overflow-x:auto}.filter-tab{border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);cursor:pointer;border-radius:999px;flex-shrink:0;padding:6px 14px;font-family:inherit;font-size:.9rem}.filter-tab.is-active{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.report-list{gap:10px;margin:0;padding:0;list-style:none;display:grid}.report-item{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:12px 14px}.report-header{align-items:center;gap:8px;display:flex}.report-title{font-weight:700}.report-meta{color:var(--color-muted);margin-top:4px;font-size:.85rem}.report-desc{white-space:pre-wrap;margin:6px 0 0;font-size:.95rem}.empty{color:var(--color-muted);text-align:center;padding:24px 0}.badge{border-radius:999px;flex-shrink:0;padding:2px 10px;font-size:.75rem;font-weight:700;display:inline-block}.badge-open{color:var(--color-open);background:var(--color-open-bg)}.badge-in_progress{color:var(--color-progress);background:var(--color-progress-bg)}.badge-done{color:var(--color-done);background:var(--color-done-bg)}