:root{
  --navy:#1f3a5f; --accent:#2e75b6; --green:#1a7f4b; --red:#b3261e;
  --bg:#f4f6f9; --card:#ffffff; --line:#e2e8f0; --text:#1f2933; --muted:#6b7280;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.5}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

.topbar{display:flex;align-items:center;justify-content:space-between;background:var(--navy);color:#fff;padding:12px 20px}
.topbar .brand{font-weight:700;letter-spacing:.3px}
.topbar .user{display:flex;gap:14px;align-items:center;font-size:14px}
.btn-link{color:#cfe0f2}

.layout{display:flex;min-height:calc(100vh - 96px)}
.sidebar{width:210px;background:#fff;border-right:1px solid var(--line);padding:14px 0}
.sidebar ul{list-style:none;margin:0;padding:0}
.sidebar a{display:block;padding:9px 20px;color:var(--text);border-left:3px solid transparent}
.sidebar a:hover{background:var(--bg);text-decoration:none}
.sidebar a.active{border-left-color:var(--accent);background:#eef4fb;color:var(--navy);font-weight:600}
.content{flex:1;padding:24px 30px;max-width:1100px}
.page-title{margin:0 0 18px;font-size:24px;color:var(--navy)}

.footer{padding:12px 20px;color:var(--muted);font-size:13px;border-top:1px solid var(--line);background:#fff}

.flash{padding:11px 15px;border-radius:7px;margin-bottom:16px;border:1px solid transparent}
.flash-success{background:#e8f6ee;border-color:#bfe6cf;color:#15633c}
.flash-error{background:#fdecea;border-color:#f5c6c2;color:#922}
.flash-info{background:#eaf2fb;border-color:#c6dcf4;color:#1b4f86}

.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:20px;margin-bottom:20px;box-shadow:0 1px 2px rgba(16,24,40,.04)}
.card h2{margin:0 0 14px;font-size:18px;color:var(--navy)}

table{width:100%;border-collapse:collapse;background:#fff}
th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
th{background:#f8fafc;color:var(--navy);font-size:13px;text-transform:uppercase;letter-spacing:.4px}
tr:hover td{background:#fafbfc}

.btn{display:inline-block;border:none;border-radius:7px;padding:9px 16px;font-size:14px;cursor:pointer;background:var(--accent);color:#fff}
.btn:hover{background:#255f97;text-decoration:none}
.btn-secondary{background:#eef2f7;color:var(--navy)}
.btn-danger{background:var(--red)}
.btn-sm{padding:5px 10px;font-size:13px}

.form-row{margin-bottom:14px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
input,select,textarea{width:100%;padding:9px 10px;border:1px solid #cbd5e1;border-radius:7px;font-size:14px;font-family:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(46,117,182,.15)}
.actions{margin-top:18px;display:flex;gap:10px}

.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:8px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px}
.kpi .val{font-size:28px;font-weight:700;color:var(--navy)}
.kpi .lbl{color:var(--muted);font-size:13px;margin-top:4px}

.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600}
.badge-ok{background:#e8f6ee;color:#15633c}
.badge-warn{background:#fff3e0;color:#9a5b00}
.badge-off{background:#eef2f7;color:#64748b}

.login-wrap{max-width:380px;margin:8vh auto;background:#fff;border:1px solid var(--line);border-radius:12px;padding:30px;box-shadow:0 6px 24px rgba(16,24,40,.08)}
.login-wrap h1{margin:0 0 6px;font-size:22px;color:var(--navy);text-align:center}
.login-wrap .sub{text-align:center;color:var(--muted);margin-bottom:22px;font-size:14px}
.muted{color:var(--muted)}
.perm-table td{padding:6px 10px}
@media(max-width:760px){.layout{flex-direction:column}.sidebar{width:100%}.form-grid{grid-template-columns:1fr}}