:root{
  --bg:#f4f5f7; --panel:#ffffff; --border:#e2e5ea; --text:#1f2430; --muted:#6b7280;
  --primary:#2f6feb; --primary-dark:#1d4fbf; --danger:#e0453c; --ok:#1a9c5c;
  --late:#e0453c; --today:#e07c1f; --soon:#c99a1a; --normal:#6b7280; --done:#1a9c5c;
  --radius:8px; --shadow:0 1px 2px rgba(16,24,40,.06);
  font-size:15px;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Malgun Gothic",sans-serif;background:var(--bg);color:var(--text);}
a{color:var(--primary);text-decoration:none}
button{font-family:inherit;cursor:pointer}

.topbar{background:var(--panel);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}
.topbar-inner{max-width:1400px;margin:0 auto;display:flex;align-items:center;gap:24px;padding:10px 16px}
.brand{font-weight:700;font-size:18px;color:var(--text)}
.brand span{color:var(--primary)}
.mainnav{display:flex;gap:4px;flex:1}
.mainnav a{padding:8px 12px;border-radius:6px;color:var(--muted);font-size:14px}
.mainnav a.active,.mainnav a:hover{background:#eef2ff;color:var(--primary)}
.topbar-user{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.btn-logout{color:var(--muted)}
.nav-toggle{display:none;background:none;border:none;font-size:20px}

.page-wrap{max-width:1400px;margin:0 auto;padding:20px 16px 60px}
.page-title{font-size:20px;margin:4px 0 16px}
.board-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;gap:8px;flex-wrap:wrap}
.detail-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}

.flash{padding:10px 14px;border-radius:var(--radius);margin-bottom:14px;font-size:14px}
.flash-ok{background:#e7f7ee;color:var(--ok)}
.flash-error{background:#fdecea;color:var(--danger)}
.alert-box{background:#fff7e6;border:1px solid #ffe0a3;padding:10px 14px;border-radius:var(--radius);margin-bottom:16px;font-size:14px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.alert-box button{border:1px solid var(--border);background:#fff;border-radius:6px;padding:4px 10px;font-size:13px}

.btn-primary,.btn-secondary{border-radius:6px;padding:8px 14px;font-size:14px;border:1px solid transparent}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-secondary{background:#fff;border-color:var(--border);color:var(--text)}

.filter-bar{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.filter-bar select,.filter-bar input[type=text]{padding:7px 10px;border:1px solid var(--border);border-radius:6px;font-size:13px;background:#fff}

.stage-summary{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin-bottom:24px}
.stage-summary-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:12px;text-align:center}
.stage-summary-name{font-size:12px;color:var(--muted)}
.stage-summary-count{font-size:18px;font-weight:700;margin:4px 0}
.stage-summary-amount{font-size:12px;color:var(--muted)}

.log-feed{list-style:none;margin:0;padding:0}
.log-feed li{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;margin-bottom:8px}
.log-feed .log-content{margin:0 0 6px;white-space:pre-wrap}
.log-meta{font-size:12px;color:var(--muted);display:flex;gap:8px;align-items:center}
.log-meta button{border:none;background:none;color:var(--danger);font-size:12px;padding:0}
.log-file{display:block;font-size:13px;margin-bottom:6px}

.kanban{display:grid;grid-template-columns:repeat(6,minmax(220px,1fr));gap:10px;overflow-x:auto;padding-bottom:8px}
.kanban-col{background:#eceef2;border-radius:var(--radius);display:flex;flex-direction:column;min-height:200px}
.kanban-col-head{padding:10px 12px;font-size:13px;font-weight:600;display:flex;align-items:center;gap:6px;border-bottom:1px solid #dfe2e8}
.kanban-col-count{margin-left:auto;font-weight:400;color:var(--muted);font-size:11px}
.dot{width:9px;height:9px;border-radius:50%;display:inline-block}
.kanban-col-body{flex:1;padding:8px;display:flex;flex-direction:column;gap:8px;min-height:60px}
.kanban-col-body.drag-over{background:#dde6ff}
.kanban-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:10px;box-shadow:var(--shadow);cursor:grab;font-size:12.5px}
.kanban-card.dragging{opacity:.4}
.kc-code{font-weight:700;font-size:12px;color:var(--primary);display:flex;justify-content:space-between}
.badge-pending{background:#fff2cc;color:#9a6b00;border-radius:4px;padding:1px 5px;font-size:10px}
.kc-name{font-weight:600;margin:4px 0}
.kc-row{color:var(--muted);margin-bottom:2px}
.kc-progress{position:relative;background:#eef0f3;border-radius:4px;height:14px;margin-top:6px;overflow:hidden}
.kc-progress-bar{background:var(--ok);height:100%}
.kc-progress span{position:absolute;inset:0;text-align:center;font-size:10px;line-height:14px}
.kc-dday{margin-top:6px;font-weight:600;font-size:11px}
.kc-dday-late{color:var(--late)} .kc-dday-today{color:var(--today)} .kc-dday-soon{color:var(--soon)}
.kc-dday-normal{color:var(--normal)} .kc-dday-done{color:var(--done)}

.table-wrap{overflow-x:auto;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius)}
.data-table{width:100%;border-collapse:collapse;font-size:13px;white-space:nowrap}
.data-table th,.data-table td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--border)}
.data-table tbody tr:hover{background:#f8f9fb;cursor:pointer}
.data-table .num{text-align:right}
.data-table .center{text-align:center}
.tag{background:#eef2ff;color:var(--primary);border-radius:4px;padding:2px 8px;font-size:12px}
.muted{color:var(--muted)}

.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:16px}
.panel h2{font-size:15px;margin:0 0 12px}
.info-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;font-size:13px}
.info-grid div{display:flex;flex-direction:column;gap:2px}
.info-grid span{color:var(--muted);font-size:11px}
.desc{margin-top:10px;font-size:13px;white-space:pre-wrap}

.stage-accordion{border:1px solid var(--border);border-radius:6px;margin-bottom:6px;padding:8px 12px}
.stage-accordion summary{cursor:pointer;font-size:13px;font-weight:600}
.substage-list{list-style:none;margin:10px 0;padding:0}
.substage-list li{display:flex;align-items:center;gap:8px;padding:6px 0;border-bottom:1px dashed var(--border);font-size:13px}
.ss-name{flex:1}
.ss-actions button{border:1px solid var(--border);background:#fff;border-radius:4px;font-size:11px;padding:2px 6px;margin-left:2px}
.ss-add-form{display:flex;gap:6px;margin-top:6px}
.ss-add-form input{flex:1;padding:6px 8px;border:1px solid var(--border);border-radius:6px;font-size:13px}

.log-add-form textarea{width:100%;min-height:70px;padding:10px;border:1px solid var(--border);border-radius:6px;font-size:14px;resize:vertical}
.log-add-row{display:flex;justify-content:space-between;align-items:center;margin-top:8px;gap:8px}

.pay-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}
.pay-summary div{background:#f8f9fb;border-radius:6px;padding:10px;text-align:center;font-size:13px}
.pay-summary span{display:block;color:var(--muted);font-size:11px;margin-bottom:4px}

.form-panel{display:flex;flex-direction:column;gap:12px;max-width:560px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px}
.form-panel label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}
.form-panel input,.form-panel select,.form-panel textarea{padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px;color:var(--text);font-family:inherit}
.form-panel textarea{min-height:70px}
.form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-actions{display:flex;gap:8px;margin-top:6px}

dialog{border:none;border-radius:var(--radius);padding:0;box-shadow:0 10px 30px rgba(0,0,0,.2)}
dialog::backdrop{background:rgba(0,0,0,.4)}
dialog .form-panel{border:none;max-width:420px}

.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh;background:#eef1f6}
.login-box{background:#fff;padding:32px;border-radius:12px;box-shadow:var(--shadow);width:320px}
.login-title{text-align:center;margin:0 0 20px}
.login-title span{color:var(--primary)}
.login-hint{font-size:13px;color:var(--muted);margin-bottom:10px}
.login-box form{display:flex;flex-direction:column;gap:10px}
.login-box input{padding:10px;border:1px solid var(--border);border-radius:6px;font-size:14px}
.login-box button{padding:10px;border:none;border-radius:6px;background:var(--primary);color:#fff;font-size:14px}

@media (max-width: 900px){
  .stage-summary{grid-template-columns:repeat(3,1fr)}
  .pay-summary{grid-template-columns:repeat(2,1fr)}
  .kanban{grid-template-columns:repeat(6,80vw)}
}
@media (max-width: 640px){
  .mainnav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;border-bottom:1px solid var(--border);padding:8px}
  .mainnav.open{display:flex}
  .nav-toggle{display:block}
  .form-row-2{grid-template-columns:1fr}
  .stage-summary{grid-template-columns:repeat(2,1fr)}
}