:root{
  --theme-primary:#1C3D2E; --theme-light:#B0792E; --bg:#F7F4EC; --line:#E3DDCF;
  --price:#C0392B; --ok:#2E7D32; --warn:#B0792E; --bad:#C0392B;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:#222}
.hidden{display:none!important}

/* login */
.login-mask{position:fixed;inset:0;background:var(--theme-primary);display:flex;align-items:center;justify-content:center}
.login-card{background:#fff;border-radius:14px;padding:32px;width:340px;box-shadow:0 10px 40px rgba(0,0,0,.25)}
.brand{font-size:22px;font-weight:800;color:var(--theme-primary);text-align:center}
.brand-sub{font-size:13px;color:#888;text-align:center;margin:6px 0 20px}
.login-card input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;margin-bottom:12px;font-size:14px}
.login-card button{width:100%;padding:11px;border:0;border-radius:8px;background:var(--theme-primary);color:#fff;font-size:15px;cursor:pointer}
.login-card .err{color:var(--bad);font-size:13px;min-height:18px;margin-top:8px}
.login-card .hint{color:#999;font-size:12px;text-align:center;margin-top:10px;line-height:1.6}

/* layout */
.app{display:flex;min-height:100vh}
.side{width:210px;background:var(--theme-primary);color:#eee;display:flex;flex-direction:column;padding:18px 0}
.side-brand{color:#fff;font-weight:800;font-size:16px;text-align:center;padding:8px 0 18px;border-bottom:1px solid rgba(255,255,255,.12)}
.side nav{display:flex;flex-direction:column;flex:1;margin-top:10px}
.nav{background:none;border:0;color:#cfd8d2;text-align:left;padding:13px 20px;font-size:14px;cursor:pointer}
.nav:hover{background:rgba(255,255,255,.06)}
.nav.active{background:var(--theme-light);color:#fff;font-weight:600}
.side-foot{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-top:1px solid rgba(255,255,255,.12);font-size:12px}
.side-foot button{background:none;border:1px solid rgba(255,255,255,.3);color:#eee;border-radius:6px;padding:5px 10px;cursor:pointer}
.side-ver{padding:8px 18px 14px;font-size:11px;color:rgba(255,255,255,.45);border-top:1px solid rgba(255,255,255,.12)}
.main{flex:1;padding:24px 30px;overflow:auto}

/* cards */
.page-title{font-size:18px;font-weight:700;color:var(--theme-primary);margin-bottom:16px}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:20px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}
.kpi .v{font-size:24px;font-weight:800;color:var(--theme-primary)}
.kpi .v.price{color:var(--price)}
.kpi .l{font-size:13px;color:#777;margin-top:4px}
.kpi.warn .v{color:var(--warn)}

/* table */
table{width:100%;border-collapse:collapse;background:#fff;border-radius:10px;overflow:hidden}
th,td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line);font-size:13px}
th{background:#f0ece1;color:#555;font-weight:600}
tr:hover td{background:#faf8f2}
.tag{padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600}
.tag.frozen{background:#fff3e0;color:var(--warn)}
.tag.audited{background:#e8f0fe;color:#2563eb}
.tag.settled{background:#e6f4ea;color:var(--ok)}
.tag.rejected{background:#fdecea;color:var(--bad)}
.tag.pending{background:#f1f1f1;color:#777}
.tag.applied{background:#fff3e0;color:var(--warn)}
.tag.issued{background:#e6f4ea;color:var(--ok)}
.btn{padding:6px 12px;border:0;border-radius:7px;cursor:pointer;font-size:12px;margin-right:6px}
.btn.ok{background:var(--ok);color:#fff}
.btn.bad{background:var(--bad);color:#fff}
.btn.primary{background:var(--theme-primary);color:#fff}
.btn.ghost{background:#fff;border:1px solid var(--line);color:#444}
.section{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:18px}
.section h3{font-size:15px;color:var(--theme-primary);margin-bottom:10px}
.empty{color:#999;font-size:13px;padding:20px;text-align:center}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px}

/* purchase / goods forms */
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px;align-items:center}
.toolbar input,.toolbar select{padding:8px 10px;border:1px solid var(--line);border-radius:8px;font-size:13px}
.toolbar .grow{flex:1;min-width:160px}
.goods-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.gcard{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;flex-direction:column}
.gcard .thumb{height:96px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;font-weight:700;margin-bottom:10px}
.gcard .nm{font-weight:700;color:var(--theme-primary);font-size:14px}
.gcard .mt{color:#888;font-size:12px;margin:4px 0}
.gcard .pr{color:var(--price);font-weight:800;font-size:16px;margin-top:4px}
.gcard .row{display:flex;align-items:center;justify-content:space-between;margin-top:10px;gap:8px}
.qty{display:flex;align-items:center;gap:6px}
.qty button{width:26px;height:26px;border:1px solid var(--line);background:#fff;border-radius:6px;cursor:pointer;font-size:15px}
.qty span{min-width:22px;text-align:center}
.cart{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:18px}
.cart h3{font-size:15px;color:var(--theme-primary);margin-bottom:10px}
.cart .line{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px dashed var(--line);font-size:13px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-grid .full{grid-column:1 / -1}
.form-grid label{font-size:12px;color:#666;display:block;margin-bottom:4px}
.form-grid input,.form-grid select,.form-grid textarea{padding:9px 10px;border:1px solid var(--line);border-radius:8px;font-size:13px;width:100%;font-family:inherit}
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:50}
.modal{background:#fff;border-radius:12px;padding:22px;width:520px;max-width:92vw}
.modal h3{color:var(--theme-primary);margin-bottom:14px}
.modal .foot{display:flex;justify-content:flex-end;gap:10px;margin-top:8px}
.tabs{display:flex;gap:8px;margin-bottom:14px}
.tabs button{padding:7px 14px;border:1px solid var(--line);background:#fff;border-radius:20px;cursor:pointer;font-size:13px}
.tabs button.active{background:var(--theme-primary);color:#fff;border-color:var(--theme-primary)}

/* login mode segmented toggle */
.seg{display:flex;gap:0;margin-bottom:14px;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{flex:1;padding:9px 0;border:0;background:#fff;color:#666;font-size:13px;cursor:pointer}
.seg button.on{background:var(--theme-primary);color:#fff;font-weight:600}
.login-card .seg button{margin:0}

/* nav groups (aligned with admin backend grouping) */
.nav-group{margin-top:6px}
.nav-gname{padding:14px 20px 4px;font-size:11px;letter-spacing:1px;color:rgba(255,255,255,.4)}

/* approval timeline */
.timeline{position:relative;margin:6px 0 0;padding-left:18px}
.timeline:before{content:'';position:absolute;left:5px;top:4px;bottom:4px;width:2px;background:var(--line)}
.tl-item{position:relative;padding:6px 0}
.tl-item:before{content:'';position:absolute;left:-16px;top:10px;width:9px;height:9px;border-radius:50%;background:#bbb;border:2px solid #fff}
.tl-item.ok:before{background:var(--ok)}
.tl-item.reject:before{background:var(--bad)}
.tl-item .t{font-size:13px}
.tl-item .meta{font-size:12px;color:#888;margin-top:2px}
.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600;background:#eef;color:#475}
.badge.self{background:#e6f4ea;color:var(--ok)}
.badge.dept{background:#fff3e0;color:var(--warn)}
.badge.all{background:#e8f0fe;color:#2563eb}
.frozen-amt{color:var(--warn);font-weight:600}