:root{
  --nav:#17365D;--bg:#f5f7fb;--card:#fff;--text:#172033;--muted:#667085;
  --border:#d9dee8;--danger:#a61b1b;--danger-bg:#fde7e7;--warn-bg:#fff4c2;
  --ok:#176b3a;--accent:#2f75b5;
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,"Noto Sans KR",sans-serif;background:var(--bg);color:var(--text)}
button,input,select{font:inherit}
button{border:1px solid var(--border);background:#fff;border-radius:8px;padding:9px 12px;cursor:pointer}
button:hover{filter:brightness(.98)}
button.primary{background:var(--nav);color:#fff;border-color:var(--nav)}
button.ghost{background:transparent}
button.full{width:100%}
.hidden{display:none!important}
.muted,.hint{color:var(--muted)}
.hint{font-size:13px}
small{font-size:11px;font-weight:normal;color:var(--muted)}
.auth-shell{min-height:100vh;display:grid;place-items:center;padding:24px}
.auth-card{width:min(440px,100%);background:#fff;border:1px solid var(--border);border-radius:16px;padding:28px}
.auth-card.wide{width:min(850px,100%)}
.brand-mark{width:48px;height:48px;border-radius:12px;background:#17365D;color:#fff;display:grid;place-items:center;font-weight:800}
.tabs{display:flex;gap:8px;margin:22px 0}
.tab.active{background:#eaf1fb;border-color:#8fb3df}
.form-grid{display:grid;gap:14px}
label{display:grid;gap:6px;font-size:14px}
input,select{width:100%;border:1px solid var(--border);border-radius:8px;padding:10px;background:#fff}
.warning{background:#fff3cd;border:1px solid #ffe69c;padding:12px;border-radius:8px;margin-top:16px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.panel{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px;margin-bottom:16px}
.panel.compact{padding:10px 16px}
.app-shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}
.sidebar{background:var(--nav);color:#fff;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.sidebar-head{padding:20px 16px;border-bottom:1px solid rgba(255,255,255,.18)}
.org-name{font-size:18px;font-weight:800;margin-bottom:6px}
.role-badge{display:inline-block;font-size:12px;padding:3px 8px;background:rgba(255,255,255,.16);border-radius:999px;margin-bottom:12px}
.sidebar select{background:#fff;color:#111}
.nav{padding:12px 8px;display:grid;gap:5px}
.nav-item{background:transparent;color:#fff;border-color:transparent;text-align:left}
.nav-item.active,.nav-item:hover{background:rgba(255,255,255,.16)}
.sidebar-foot{margin-top:auto;padding:12px}
.sidebar-foot button{color:#fff;border-color:rgba(255,255,255,.25)}
.main{min-width:0;padding:20px}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}
.topbar h1{margin:0 0 4px}
.upload-target{font-size:13px;color:var(--muted)}
.sync-status{font-size:12px;color:var(--muted)}
.top-actions{display:flex;align-items:center;gap:8px}
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:16px}
.metric{background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px}
.metric .label{font-size:13px;color:var(--muted)}
.metric .value{font-size:24px;font-weight:800;margin-top:6px}
.toolbar{display:flex;align-items:end;gap:10px;margin-bottom:14px}
.toolbar.wrap{flex-wrap:wrap}
.dropzone{min-width:300px;border:2px dashed #aeb9c8;border-radius:12px;padding:14px 16px;background:#fff;cursor:pointer}
.dropzone input{display:none}
.dropzone strong,.dropzone span{display:block}
.dropzone span{font-size:12px;color:var(--muted);margin-top:4px}
.date-control{width:180px}
.table-wrap{overflow:auto;background:#fff;border:1px solid var(--border);border-radius:12px;max-width:100%}
.data-table{border-collapse:collapse;width:max-content;min-width:100%;font-size:13px}
.data-table th,.data-table td{border-bottom:1px solid #e8ebf0;border-right:1px solid #eef1f5;padding:8px;vertical-align:middle;white-space:nowrap}
.data-table th{position:sticky;top:0;background:#2f75b5;color:#fff;z-index:2;text-align:center}
.data-table tr.completed-row td{background:var(--warn-bg)}
.data-table tr.defaulted-row td{background:var(--danger-bg);color:#8d1717}
.data-table tr.changed-row td{box-shadow:inset 0 0 0 9999px rgba(244,204,204,.45)}
.data-table img.thumb{width:52px;height:52px;object-fit:contain;border-radius:6px;background:#f3f3f3}
.data-table input[type=checkbox]{width:18px;height:18px}
.data-table input.stock-input{width:90px}
.data-table select.ship-select{min-width:95px;padding:6px}
.resizable th{position:relative}
.resizer{position:absolute;right:-2px;top:0;width:6px;height:100%;cursor:col-resize;user-select:none}
.status{font-size:12px;padding:4px 7px;border-radius:999px;background:#eef2f7}
.status.red{background:#fde7e7;color:#9b1c1c}
.status.yellow{background:#fff4c2;color:#725c00}
.status.green{background:#def7e7;color:#176b3a}
.chart-box{height:320px}
.toast{position:fixed;right:18px;bottom:18px;z-index:1000;background:#172033;color:#fff;padding:11px 14px;border-radius:9px;opacity:0;pointer-events:none;transition:.2s}
.toast.show{opacity:1}
hr{border:0;border-top:1px solid var(--border);margin:18px 0}
@media(max-width:900px){
  .app-shell{grid-template-columns:1fr}
  .sidebar{position:relative;height:auto}
  .nav{grid-template-columns:repeat(3,1fr)}
  .sidebar-foot{display:none}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr}
}
@media(max-width:520px){
  .main{padding:12px}
  .metrics{grid-template-columns:1fr}
  .topbar{align-items:flex-start;flex-direction:column}
  .nav{grid-template-columns:repeat(2,1fr)}
}