* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", Arial, sans-serif; background: #e9edf2; color: #1b2733; }
.shell { display: flex; min-height: 100vh; }
.nav { width: 265px; background: linear-gradient(180deg, #0f5da8 0%, #0a4d8a 100%); color: #fff; padding: 16px; border-right: 1px solid #083b68; }
.brand { font-size: 20px; font-weight: 700; margin-bottom: 18px; }
.nav a { display: block; color: #e0efff; text-decoration: none; padding: 9px 10px; border-radius: 8px; margin-bottom: 6px; }
.nav a.on, .nav a:hover { background: rgba(255,255,255,0.24); color: #fff; }
.main { flex: 1; padding: 16px 20px; }
.top { background: linear-gradient(180deg, #ffffff 0%, #f5f8fc 100%); border: 1px solid #cfd8e3; border-radius: 10px; padding: 12px 14px; display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.top h1 { margin: 0; font-size: 21px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; }
.kpi { background: #fff; border: 1px solid #cfd8e3; border-left: 4px solid #0f5da8; border-radius: 10px; padding: 12px; }
.kpi .v { font-size: 24px; font-weight: 700; margin-top: 4px; }
.card { background: #fff; border: 1px solid #cfd8e3; border-radius: 10px; padding: 14px; margin-bottom: 12px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { border: 1px solid #e5e7eb; padding: 8px; text-align: left; }
th { background: #eef3f8; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; }
input, select, textarea { border: 1px solid #cdd6e0; border-radius: 7px; padding: 8px; font-size: 14px; }
button { background: #0f5da8; color: #fff; border: 0; border-radius: 7px; padding: 9px 12px; cursor: pointer; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.msg-ok { background: #dcfce7; color: #166534; padding: 10px; border-radius: 8px; margin-bottom: 10px; }
.msg-err { background: #fee2e2; color: #991b1b; padding: 10px; border-radius: 8px; margin-bottom: 10px; }