:root{--bg:#f5f7fb;--panel:#ffffff;--panel-soft:#f8fafc;--text:#172033;--muted:#667085;--line:#d8dee9;--line-strong:#bac4d3;--blue:#2557a7;--blue-dark:#1b3f7d;--green:#177245;--red:#b42318;--amber:#a15c07}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif;font-size:14px}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.app-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{background:#152238;color:#f8fafc;padding:18px 14px}.brand-mark{display:flex;align-items:center;gap:10px;padding:6px 8px 18px;border-bottom:1px solid rgba(255,255,255,.14);margin-bottom:16px}.brand-icon{display:grid;place-items:center;width:32px;height:32px;border-radius:6px;background:#2b6cb0}.brand-icon,.brand-title{font-weight:700}.brand-subtitle{color:#b9c4d4;font-size:12px;margin-top:2px}.nav-group{display:grid;grid-gap:4px;gap:4px}.nav-link{display:flex;align-items:center;gap:10px;color:#dce5f2;padding:9px 10px;border-radius:6px}.nav-link.active,.nav-link:hover{background:rgba(255,255,255,.11);color:#ffffff}.main{min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;height:58px;padding:0 22px;background:var(--panel);border-bottom:1px solid var(--line)}.topbar-title{font-weight:700}.topbar-meta{color:var(--muted);font-size:13px}.content{padding:22px}.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px}.page-head h1{margin:0;font-size:24px;line-height:1.2}.page-head p{color:var(--muted);margin:6px 0 0}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px}.grid{display:grid;grid-gap:16px;gap:16px}.grid.two{grid-template-columns:minmax(0,1fr) minmax(320px,.6fr)}.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:12px;gap:12px}.stat{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:14px}.stat-label{color:var(--muted);font-size:12px;text-transform:uppercase}.stat-value{font-size:26px;font-weight:700;margin-top:6px}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:8px;background:var(--panel)}table{width:100%;border-collapse:collapse}td,th{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:var(--panel-soft);color:#344054;font-size:12px;text-transform:uppercase}tr:hover td{background:#f2f7ff}.badge{display:inline-flex;align-items:center;min-height:22px;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:700}.badge.submitted{background:#edf4ff;color:var(--blue)}.badge.error{background:#fff0f0;color:var(--red)}.badge.warning{background:#fff7e6;color:var(--amber)}.badge.approved{background:#e9f7ef;color:var(--green)}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:36px;padding:7px 12px;border-radius:6px;border:1px solid var(--line-strong);background:#ffffff;color:var(--text);cursor:pointer}.button.primary{background:var(--blue);border-color:var(--blue);color:#ffffff}.button.primary:hover{background:var(--blue-dark)}.field{display:grid;grid-gap:6px;gap:6px;margin-bottom:12px}.field label{color:#344054;font-weight:700;font-size:13px}.field input,.field select{width:100%;min-height:38px;border:1px solid var(--line-strong);border-radius:6px;padding:8px 10px;background:#ffffff}.help{color:var(--muted);font-size:12px}.notice{border:1px solid #b8cdf5;background:#f1f6ff;border-radius:8px;padding:12px;color:#1f3f70}.result-box{white-space:pre-wrap;background:#0f172a;color:#e6edf7;border-radius:8px;padding:14px;min-height:120px;overflow:auto}.submit-mask{position:absolute;inset:-8px;z-index:10;display:grid;place-items:center;border-radius:8px;background:rgba(255,255,255,.78);cursor:wait}.submit-mask-box{border:1px solid var(--line-strong);border-radius:8px;background:#ffffff;color:var(--text);padding:12px 14px;box-shadow:0 10px 24px rgba(15,23,42,.14);font-weight:700}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:#edf2f7}.login-panel{width:min(420px,100%);background:#ffffff;border:1px solid var(--line);border-radius:8px;padding:24px}.login-panel h1{margin:18px 0;font-size:24px}.login-brand{color:var(--text);padding:0 0 16px}.login-brand .brand-subtitle{color:var(--muted)}.login-button{width:100%}@media (max-width:900px){.app-shell{grid-template-columns:1fr}.sidebar{position:static}.grid.two,.stat-grid{grid-template-columns:1fr}}