*,:before,:after{box-sizing:border-box}:root{--bg:#f8fafc;--surface:#fff;--border:#e2e8f0;--text:#0f172a;--text-muted:#64748b;--accent:#0f766e;--success:#15803d;--warn:#b45309;--danger:#b91c1c;--nav-home:var(--accent);--nav-attendance:var(--accent);--nav-monthly:var(--accent);--nav-member:var(--accent);--nav-settings:var(--accent)}@media (prefers-color-scheme:dark){:root{--bg:#0f172a;--surface:#1e293b;--border:#334155;--text:#f1f5f9;--text-muted:#94a3b8;--accent:#2dd4bf;--success:#4ade80;--warn:#fbbf24;--danger:#f87171}}html,body{background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,sans-serif}button{cursor:pointer;font-family:inherit}button:disabled{cursor:not-allowed}input[type=date],input[type=time]{appearance:none;text-align:left;width:100%;min-width:0;max-width:100%;font-family:inherit;display:block}input[type=date]::-webkit-date-and-time-value{text-align:left;margin:0}input[type=time]::-webkit-date-and-time-value{text-align:left;margin:0}input[type=date]::-webkit-datetime-edit{padding:0}input[type=time]::-webkit-datetime-edit{padding:0}.alert-todo{margin-left:auto}@media (max-width:720px){.alert-todo{width:100%;margin-left:0}}.admin-nav{margin-bottom:24px}.admin-nav-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:14px;display:flex}.admin-nav-groups{background:var(--surface);border:1px solid var(--border);border-radius:12px;flex-wrap:wrap;gap:4px;padding:4px;display:flex}.admin-nav-group{min-height:40px;color:var(--text-muted);white-space:nowrap;border-radius:8px;align-items:center;gap:6px;padding:0 16px;font-size:14px;font-weight:600;text-decoration:none;transition:background .12s,color .12s;display:inline-flex}.admin-nav-group:hover{background:color-mix(in srgb, var(--accent) 10%, transparent);color:var(--text)}.admin-nav-group.is-on{background:var(--accent);color:var(--surface)}.admin-nav-items{border-bottom:1px solid var(--border);flex-wrap:wrap;gap:2px;margin-top:10px;display:flex}.admin-nav-item{min-height:40px;color:var(--text-muted);white-space:nowrap;border-bottom:2px solid #0000;align-items:center;gap:6px;padding:0 14px;font-size:14px;text-decoration:none;transition:color .12s,border-color .12s;display:inline-flex}.admin-nav-item:hover{color:var(--text);border-bottom-color:var(--border)}.admin-nav-item.is-on{color:var(--accent);border-bottom-color:var(--accent);font-weight:700}.admin-nav-badge{background:var(--warn);min-width:20px;height:20px;color:var(--surface);font-variant-numeric:tabular-nums;border-radius:10px;justify-content:center;align-items:center;padding:0 6px;font-size:11px;font-weight:700;display:inline-flex}.admin-nav-group.is-on .admin-nav-badge{background:var(--surface);color:var(--accent)}.admin-nav-hint{color:var(--text-muted);text-wrap:pretty;margin:10px 0 0;font-size:12.5px;line-height:1.7}.admin-nav a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}@media (max-width:720px){.admin-nav-group,.admin-nav-item{padding:0 12px;font-size:13px}}.admin-shell{display:block}.admin-sidebar{display:none}.admin-topnav{display:block}.admin-main{min-width:0;max-width:1100px;margin:0 auto;padding:20px 20px 64px}@media (min-width:721px){.admin-shell{align-items:flex-start;max-width:1600px;margin:0 auto;display:flex}.admin-sidebar{border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:232px;min-height:100vh;padding:20px 14px;display:flex;position:sticky;top:0}.admin-topnav{display:none}.admin-main{flex:1;max-width:1200px;margin:0;padding:24px 32px 64px}}.admin-sidebar-header{border-bottom:1px solid var(--border);margin-bottom:14px;padding:0 10px 16px}.admin-sidebar-nav{flex:1;overflow-y:auto}.admin-sidebar-group{margin-bottom:20px}.admin-sidebar-group-label{letter-spacing:.05em;color:var(--group-color,var(--text-muted));text-transform:uppercase;margin-bottom:6px;padding:0 10px;font-size:12.5px;font-weight:800}.admin-sidebar-group-label--link{letter-spacing:normal;text-transform:none;border-left:3px solid #0000;border-radius:8px;align-items:center;min-height:40px;margin:0 0 2px;padding:0 10px;font-size:15px;font-weight:800;text-decoration:none;transition:background .12s;display:flex}.admin-sidebar-group-label--link:hover{background:color-mix(in srgb, var(--group-color) 12%, transparent)}.admin-sidebar-group-label--link.is-on{background:color-mix(in srgb, var(--group-color) 18%, transparent);border-left-color:var(--group-color)}.admin-sidebar-item{min-height:40px;color:var(--text-muted);border-left:3px solid #0000;border-radius:8px;justify-content:space-between;align-items:center;gap:8px;margin:1px 0;padding:0 10px;font-size:14px;font-weight:600;text-decoration:none;transition:background .12s,color .12s;display:flex}.admin-sidebar-item:hover{background:color-mix(in srgb, var(--group-color,var(--accent)) 10%, transparent);color:var(--text)}.admin-sidebar-item.is-on{background:color-mix(in srgb, var(--group-color,var(--accent)) 16%, transparent);color:var(--group-color,var(--accent));border-left-color:var(--group-color,var(--accent))}.admin-sidebar-footer{border-top:1px solid var(--border);margin-top:auto;padding-top:14px}.admin-sidebar a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}