:root{--bg:#f5f7fb;--card:#fff;--text:#1f2937;--muted:#6b7280;--line:#dbe2ea;--primary:#1d4ed8;--accent:#0f766e;--danger:#b91c1c}
*{box-sizing:border-box;font-family:Arial,Helvetica,sans-serif} body{margin:0;background:var(--bg);color:var(--text)}
button,input,select,textarea{font:inherit}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:0 10px 30px rgba(15,23,42,.06)}
.login-card{width:min(420px,100%);padding:28px}
h1,h2,h3{margin:0 0 12px} p{color:var(--muted)}
label{display:block;margin:12px 0 6px;font-weight:700;font-size:14px}
input,select,textarea{width:100%;padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:#fff}
textarea{min-height:90px;resize:vertical}
button{border:0;border-radius:12px;padding:11px 14px;font-weight:700;cursor:pointer}
.btn-primary{background:var(--primary);color:#fff}.btn-secondary{background:#e8eefc;color:#173b90}.btn-ghost{background:#fff;border:1px solid var(--line)}
.layout{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.sidebar{background:#0f172a;color:#fff;padding:18px 14px;display:flex;flex-direction:column}.brand{font-size:20px;font-weight:800;padding:8px 10px 18px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:14px}
.nav{flex:1}.nav a{display:block;color:#dbeafe;text-decoration:none;padding:10px 12px;border-radius:12px;margin:4px 0}.nav a.active,.nav a:hover{background:rgba(255,255,255,.12)}
.main{padding:24px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.badge{padding:6px 10px;border-radius:999px;background:#e8eefc;color:#173b90;font-size:12px;font-weight:700}
.grid{display:grid;gap:16px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.kpi{padding:18px}.kpi .n{font-size:28px;font-weight:800}.muted{color:var(--muted)}
table{width:100%;border-collapse:collapse} th,td{padding:10px;border-bottom:1px solid var(--line);text-align:left;font-size:14px} th{background:#f8fafc}
.table-wrap{overflow:auto}.section{padding:18px}.row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.row-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.actions{display:flex;gap:10px;flex-wrap:wrap}
.notice{padding:16px;border:1px dashed #94a3b8;border-radius:16px;background:#f8fafc}.pill{display:inline-block;padding:6px 10px;border-radius:999px;background:#dcfce7;color:#166534;font-size:12px;font-weight:700}
.pill.gray{background:#e5e7eb;color:#374151}.pill.orange{background:#ffedd5;color:#9a3412}.pill.red{background:#fee2e2;color:#991b1b}
.error{color:var(--danger);margin-top:10px}.small{font-size:12px}.module-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.item-box{border:1px solid var(--line);border-radius:16px;padding:14px;margin:12px 0;background:#fafcff}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:99}
.sidebar-overlay.open{display:block}
.mob-menu-btn{display:none;background:none;border:none;font-size:24px;cursor:pointer;padding:4px 8px;border-radius:8px;line-height:1;color:#fff}
@media (max-width:1000px){.layout{grid-template-columns:1fr}.sidebar{position:fixed;top:0;left:0;width:260px;height:100vh;z-index:100;transform:translateX(-100%);transition:transform .25s ease;overflow-y:auto}.sidebar.open{transform:translateX(0)}.grid-4,.grid-2,.row,.row-3{grid-template-columns:1fr}.mob-menu-btn{display:inline-flex;align-items:center}.main{min-width:0}}

.inv-tab-btn { padding: 7px 16px; border: none; background: none; cursor: pointer; font-size: 13px; font-weight: 600; color: #6b7280; border-bottom: 3px solid transparent; margin-bottom: -2px; }
.inv-tab-btn.inv-tab-active { color: #2563eb; border-bottom-color: #2563eb; }