:root{
  --bg:#f6f7f9;
  --panel:#ffffff;
  --border:#e2e5ea;
  --text:#1c2230;
  --muted:#6b7280;
  --accent:#2563eb;
  --accent-soft:#eaf0ff;
  --green:#16a34a;
  --red:#dc2626;
  --orange:#d97706;
  --jp:#7c3aed;
  --sl:#0891b2;
  --radius:10px;
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:14px;
}
.topbar{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 22px;background:var(--panel);border-bottom:1px solid var(--border);
  flex-wrap:wrap;gap:10px;
}
.topbar-title h1{margin:0;font-size:20px;}
.topbar-title p{margin:2px 0 0;color:var(--muted);font-size:13px;}
.pill{
  display:inline-block;padding:4px 10px;border-radius:999px;font-size:12px;
  background:var(--accent-soft);color:var(--accent);font-weight:600;
}
.pill-muted{background:#eef2f7;color:var(--muted);}
.tabs{
  display:flex;flex-wrap:wrap;gap:4px;padding:8px 16px;background:var(--panel);
  border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20;
}
.tab{
  border:none;background:transparent;padding:8px 12px;border-radius:8px;
  cursor:pointer;font-size:13px;color:var(--muted);font-weight:600;
}
.tab:hover{background:#f0f2f5;}
.tab.active{background:var(--accent);color:#fff;}
.tab-new{outline:1.5px dashed var(--jp);outline-offset:-1px;}
main{padding:20px 24px 60px;max-width:1400px;margin:0 auto;}
.footer{text-align:center;color:var(--muted);font-size:12px;padding:20px;}
h2{font-size:18px;margin:0 0 4px;}
h3{font-size:15px;margin:22px 0 8px;}
.section-desc{color:var(--muted);font-size:13px;margin:0 0 16px;max-width:900px;}
.card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:16px 18px;margin-bottom:18px;
}
.card-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:8px;}
table{border-collapse:collapse;width:100%;font-size:13px;}
th,td{border:1px solid var(--border);padding:6px 8px;text-align:left;}
th{background:#f2f4f7;font-weight:600;white-space:nowrap;}
td input, td select{
  width:100%;border:1px solid transparent;background:transparent;font-size:13px;padding:3px 4px;border-radius:4px;
}
td input:hover, td select:hover, td input:focus, td select:focus{border-color:var(--border);background:#fafbfc;}
.table-wrap{overflow-x:auto;}
button.btn{
  background:var(--accent);color:#fff;border:none;padding:8px 14px;border-radius:8px;
  cursor:pointer;font-size:13px;font-weight:600;
}
button.btn:hover{background:#1d4ed8;}
button.btn-secondary{background:#eef1f6;color:var(--text);}
button.btn-secondary:hover{background:#e2e6ee;}
button.btn-danger{background:#fee2e2;color:var(--red);}
button.btn-danger:hover{background:#fecaca;}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0;}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;}
@media(max-width:900px){.grid2,.grid3{grid-template-columns:1fr;}}
.scenario-card{
  border:2px solid var(--border);border-radius:var(--radius);padding:14px;cursor:pointer;background:#fff;
}
.scenario-card.selected{border-color:var(--accent);background:var(--accent-soft);}
.scenario-card h4{margin:0 0 4px;font-size:14px;}
.scenario-card p{margin:0;font-size:12px;color:var(--muted);}
.badge{display:inline-block;padding:2px 8px;border-radius:6px;font-size:11px;font-weight:700;}
.badge-jp{background:#f2e9ff;color:var(--jp);}
.badge-sl{background:#e3f6fb;color:var(--sl);}
.badge-extern{background:#eef2f7;color:var(--muted);}
.badge-conflict{background:#fee2e2;color:var(--red);}
.badge-warn{background:#fef3c7;color:var(--orange);}
.conflict-row{background:#fff5f5;}
.conflict-row.orange{background:#fffaf0;}
.small{font-size:12px;color:var(--muted);}
.kpi-bar-row{display:flex;align-items:center;gap:8px;margin:4px 0;}
.kpi-bar-label{width:130px;font-size:12px;flex-shrink:0;}
.kpi-bar-track{flex:1;background:#eef1f6;border-radius:6px;overflow:hidden;height:18px;display:flex;}
.kpi-bar-seg{height:100%;}
.kpi-bar-val{width:50px;text-align:right;font-size:12px;color:var(--muted);}
.week-grid{display:grid;grid-template-columns:80px repeat(5,1fr);gap:4px;font-size:12px;}
.week-grid .cell{border:1px solid var(--border);border-radius:6px;padding:4px 6px;min-height:44px;background:#fff;}
.week-grid .head{background:#f2f4f7;font-weight:600;text-align:center;}
.room-chip{display:block;font-size:11px;padding:2px 4px;border-radius:4px;margin-top:2px;}
.room-chip.jp{background:#f2e9ff;color:var(--jp);}
.room-chip.sl{background:#e3f6fb;color:var(--sl);}
.room-chip.extern{background:#eef2f7;color:var(--muted);}
.room-chip.conflict{background:#fee2e2;color:var(--red);font-weight:700;}
.legend-block{margin-bottom:18px;}
.legend-block h3{margin-top:0;}
.toast{
  position:fixed;bottom:20px;right:20px;background:#1c2230;color:#fff;padding:10px 16px;
  border-radius:8px;font-size:13px;box-shadow:0 4px 14px rgba(0,0,0,.2);z-index:100;
}
.toast.hidden{display:none;}
input[type="number"]{width:70px;}
.checkbox-row{display:flex;align-items:center;gap:6px;font-size:13px;margin:4px 0;}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace;}
.week-nav{display:flex;align-items:center;gap:10px;margin-bottom:10px;}

.map-row{display:grid;grid-template-columns:160px 1fr;gap:10px;align-items:center;margin:6px 0;}
.map-row select{width:100%;}
.dropzone{
  border:2px dashed var(--border);border-radius:var(--radius);padding:36px;text-align:center;
  color:var(--muted);cursor:pointer;background:#fafbfc;
}
.dropzone.drag{border-color:var(--accent);background:var(--accent-soft);}
.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;}
.summary-item{background:#f2f4f7;border-radius:8px;padding:10px 12px;text-align:center;}
.summary-item .num{font-size:22px;font-weight:700;color:var(--accent);}
.summary-item .lbl{font-size:12px;color:var(--muted);}
.warn-box{background:#fffaf0;border:1px solid #fde68a;border-radius:8px;padding:10px 14px;font-size:13px;color:#92400e;margin:10px 0;}
.step-nav{display:flex;justify-content:space-between;margin-top:18px;}