:root{--ink:#1f2328;--ink-2:#57606a;--ink-3:#8c959f;--line:#d0d7de;--line-2:#e6e9ec;--line-month:#8c959f;--bg:#f6f7f9;--panel:#fff;--phase:#eceef1;--accent:#2f6fdb;--accent-soft:#e8f0fd;--danger:#c93c37;--ok:#1a7f37;--today:#e0464e;--row-h:22px;color:var(--ink);background:var(--bg);font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,Yu Gothic UI,Meiryo,system-ui,sans-serif;font-size:13px;line-height:1.5}*{box-sizing:border-box}body{background:var(--bg);margin:0}button,input,select,textarea{font:inherit;color:inherit}button{border:1px solid var(--line);background:var(--panel);cursor:pointer;border-radius:6px;padding:4px 10px}button:hover:not(:disabled){background:#f0f2f4}button:disabled{opacity:.45;cursor:default}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.primary:hover:not(:disabled){background:#2560c4}button.danger{color:var(--danger)}button.ghost{background:0 0;border-color:#0000}input[type=text],input[type=email],input[type=date],select,textarea{border:1px solid var(--line);background:#fff;border-radius:6px;min-width:0;padding:4px 8px}input:focus,select:focus,textarea:focus,button:focus-visible{outline:2px solid var(--accent);outline-offset:-1px}h1,h2,h3{margin:0;font-weight:600}h2{font-size:16px}h3{font-size:14px}.topbar{background:var(--panel);border-bottom:1px solid var(--line);z-index:20;flex-wrap:wrap;align-items:center;gap:12px;padding:8px 16px;display:flex;position:sticky;top:0}.topbar .brand{margin-right:8px;font-size:15px;font-weight:700}.topbar .spacer{flex:1}.demo-banner{color:#6b5200;background:#fff8e1;border-bottom:1px solid #f1d58a;flex-wrap:wrap;align-items:center;gap:12px;padding:6px 16px;font-size:12px;display:flex}.page{max-width:1200px;margin:0 auto;padding:16px}.page.wide{max-width:none}.card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px}.stack{flex-direction:column;gap:12px;display:flex}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.muted{color:var(--ink-2)}.small{font-size:12px}.badge{background:var(--line-2);color:var(--ink-2);border-radius:10px;padding:0 8px;font-size:11px;display:inline-block}.badge.accent{background:var(--accent-soft);color:var(--accent)}.error{color:var(--danger)}.tabs{border-bottom:1px solid var(--line);gap:2px;margin-bottom:12px;display:flex}.tabs button{color:var(--ink-2);background:0 0;border:none;border-bottom:2px solid #0000;border-radius:0;padding:8px 14px}.tabs button.on{border-bottom-color:var(--accent);color:var(--ink);font-weight:600}.project-head{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:8px;display:flex}.save-state{color:var(--ink-3);font-size:12px}.save-state.err{color:var(--danger)}.plist{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;display:grid}.pcard{text-align:left;border-radius:8px;flex-direction:column;gap:6px;padding:14px;display:flex}.pcard .name{font-size:14px;font-weight:600}.form-grid{grid-template-columns:120px 1fr;align-items:center;gap:8px 12px;display:grid}.form-grid label{color:var(--ink-2)}@media (width<=640px){.form-grid{grid-template-columns:1fr}}.wbs-table{border-collapse:collapse;background:#fff;width:100%}.wbs-table th,.wbs-table td{border-bottom:1px solid var(--line-2);text-align:left;padding:2px 6px}.wbs-table th{color:var(--ink-2);background:#fafbfc;font-size:12px;font-weight:600;position:sticky;top:0}.wbs-table tr.sel td{background:var(--accent-soft)}.wbs-table tr.phase td{background:var(--phase)}.wbs-table tr.phase.sel td{background:#dce6f7}.wbs-table input.name{background:0 0;border-color:#0000;width:100%;padding:3px 6px}.wbs-table input.name:hover{border-color:var(--line)}.wbs-table tr.phase input.name{font-weight:700}.wbs-no{color:var(--ink-3);font-variant-numeric:tabular-nums;width:56px}.toolbar{flex-wrap:wrap;align-items:center;gap:6px;padding:8px 0;display:flex}.modal-back{z-index:50;background:#14181c59;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal{background:#fff;border-radius:10px;flex-direction:column;gap:12px;width:min(860px,100%);max-height:90vh;padding:18px;display:flex;overflow:auto}.modal textarea{width:100%;min-height:260px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px}.issues{max-height:160px;margin:0;padding-left:18px;font-size:12px;overflow:auto}.gantt-wrap{align-items:flex-start;gap:12px;display:flex}.gantt-scroll{border:1px solid var(--line);background:#fff;flex:1;min-width:0;max-width:100%;max-height:calc(100vh - 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