* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", Tahoma, sans-serif; background: #f3f5f7; color: #17212b; }
a { color: inherit; text-decoration: none; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 10px; border-bottom: 1px solid #d9e0e6; text-align: left; font-size: 14px; vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: #5c6a75; }
.shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar { background: linear-gradient(180deg, #0f2438 0%, #16344e 100%); color: #eef5fb; padding: 24px 20px; display: flex; flex-direction: column; gap: 18px; }
.brand { font-size: 28px; font-weight: 700; letter-spacing: .04em; }
.brand-sub { color: #a7bfd1; font-size: 13px; }
.nav-link { display: block; padding: 12px 14px; margin-bottom: 6px; border-radius: 12px; color: #d8e6f1; }
.nav-link.active, .nav-link:hover { background: rgba(255,255,255,.08); color: #fff; }
.side-footer { margin-top: auto; border-top: 1px solid rgba(255,255,255,.12); padding-top: 16px; }
.side-user { font-size: 14px; margin-bottom: 8px; }
.side-logout { font-size: 13px; color: #c7d7e4; }
.main { padding: 28px; }
.topbar { display: flex; justify-content: space-between; gap: 16px; align-items: end; margin-bottom: 20px; }
.topbar h1 { margin: 0; font-size: 30px; }
.topbar-meta { color: #687682; font-size: 13px; }
.grid { display: grid; gap: 18px; margin-bottom: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.card, .panel { background: #fff; border: 1px solid #dde4ea; border-radius: 18px; box-shadow: 0 12px 30px rgba(21, 35, 51, .05); }
.card { padding: 20px; }
.card strong { display: block; font-size: 28px; margin-top: 8px; }
.eyebrow { display: inline-block; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: #6b7986; }
.panel { padding: 20px; overflow: auto; }
.panel h2 { margin: 0 0 14px; font-size: 18px; }
.panel-help { margin: 10px 0 0; color: #5e6c78; font-size: 13px; line-height: 1.5; }
.panel-alert { margin-bottom: 18px; }
.panel-alert.ok { border-color: #bfe6ca; background: #eefbf1; }
.panel-alert.danger { border-color: #f1c5c8; background: #fff2f3; }
.metric { font-size: 42px; margin: 0; font-weight: 700; }
.badge { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; text-transform: uppercase; }
.badge.ok { background: #d7f2df; color: #1f6a35; }
.badge.warn { background: #fff0c7; color: #8a5a00; }
.badge.danger { background: #ffd7d8; color: #97252c; }
.badge.neutral { background: #e9eef2; color: #4d5b66; }
.action-stack { display: grid; gap: 8px; min-width: 220px; }
.inline-form { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.inline-form input, .inline-form select, .inline-form button { border: 1px solid #cad4dd; border-radius: 10px; padding: 8px 10px; font-size: 13px; }
.inline-form button { background: #16344c; color: #fff; border: 0; cursor: pointer; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 14px; border-radius: 10px; border: 1px solid #cad4dd; background: #f7fafc; color: #16344c; font-size: 13px; font-weight: 700; }
.btn:hover { background: #eef3f7; }
.erp-form-grid { display: grid; gap: 12px; }
.erp-form-grid label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; color: #24323d; }
.erp-form-grid input, .erp-form-grid select, .erp-form-grid textarea, .erp-form-grid button { border: 1px solid #cad4dd; border-radius: 12px; padding: 10px 12px; font-size: 14px; }
.erp-form-grid textarea { min-height: 110px; resize: vertical; }
.erp-form-grid button { background: #16344c; color: #fff; border: 0; cursor: pointer; font-weight: 700; }
.form-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.check-inline { display: flex !important; align-items: center; gap: 10px !important; font-weight: 600; }
.check-inline input { width: auto; margin: 0; }
.stack-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.stack-list li { display: grid; gap: 6px; padding-bottom: 12px; border-bottom: 1px solid #edf1f4; }
.stack-list small { color: #687682; font-size: 13px; }
.login-body { display: grid; place-items: center; min-height: 100vh; background: linear-gradient(135deg, #12314a 0%, #1f516b 100%); }
.login-card { width: min(420px, calc(100vw - 32px)); background: #fff; padding: 30px; border-radius: 20px; display: grid; gap: 14px; box-shadow: 0 18px 50px rgba(0, 0, 0, .25); }
.login-card h1 { margin: 0; }
.login-card p { margin: 0 0 6px; color: #64717d; }
.login-card label { display: grid; gap: 7px; font-size: 14px; font-weight: 600; }
.login-card input, .login-card button { width: 100%; border-radius: 12px; border: 1px solid #cad4dd; padding: 12px 14px; font-size: 15px; }
.login-card button { background: #0f4d68; color: #fff; border: 0; cursor: pointer; font-weight: 700; }
.form-error { background: #fff0f1; color: #922730; border: 1px solid #f4c7cb; padding: 10px 12px; border-radius: 12px; font-size: 14px; }
@media (max-width: 1100px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { gap: 12px; }
  .grid-6, .grid-5, .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

.module-tabs { display:flex; flex-wrap:wrap; gap:10px; margin-top:14px; }
.module-tab { display:inline-flex; align-items:center; padding:10px 14px; border-radius:999px; border:1px solid #cad4dd; background:#f7fafc; color:#294054; font-weight:600; }
.module-tab.active { background:#16344c; color:#fff; border-color:#16344c; }
.module-link { color:#0f4d68; font-weight:600; }
.section-heading { display:flex; justify-content:space-between; align-items:flex-start; gap:16px; }
.section-heading h2 { margin-bottom:8px; }
@media (max-width: 900px) {
  .section-heading { flex-direction:column; }
}