* {
    box-sizing: border-box;
}
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f4f6f8;
    color: #222;
}
.layout { display: flex; min-height: 100vh; }
.sidebar {
    width: 250px; background: #1f4e79; color: white; padding: 25px 15px;
}
.brand { text-align: center; margin-bottom: 35px; }
.brand h1 { margin: 0; font-size: 25px; }
.brand p { margin: 6px 0 0; font-size: 13px; opacity: 0.8; }
.nav-button {
    width: 100%; border: none; background: transparent; color: white;
    padding: 13px 15px; text-align: left; border-radius: 6px;
    margin-bottom: 5px; cursor: pointer; font-size: 14px;
}
.nav-button:hover { background: rgba(255,255,255,0.12); }
.nav-button.active { background: rgba(255,255,255,0.2); }
.main { flex: 1; }
.topbar {
    background: white; padding: 18px 30px; display: flex;
    justify-content: space-between; align-items: center; border-bottom: 1px solid #ddd;
}
.topbar h2 { margin: 0; font-size: 21px; }
.user-info { text-align: right; }
.user-name { font-weight: bold; }
.user-role { font-size: 12px; color: #666; margin-top: 4px; }
.content { padding: 30px; }
.cards {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px; margin-bottom: 30px;
}
.card {
    background: white; padding: 22px; border-radius: 10px;
    box-shadow: 0 3px 12px rgba(0,0,0,0.06);
}
.card-title { color: #666; font-size: 13px; margin-bottom: 10px; }
.card-value { font-size: 28px; font-weight: bold; color: #1f4e79; }
.section {
    background: white; border-radius: 10px; padding: 25px;
    margin-bottom: 25px; box-shadow: 0 3px 12px rgba(0,0,0,0.06);
}
.section h3 { margin-top: 0; }
.dashboard-summary { color: #666; font-size: 13px; margin-bottom: 0; }
.sites {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px;
}
.site { border: 1px solid #ddd; border-radius: 7px; padding: 14px; }
.site-code { font-weight: bold; color: #1f4e79; }
.site-name { margin-top: 5px; font-size: 14px; }
.logout {
    margin-top: 30px; border-top: 1px solid rgba(255,255,255,0.2); padding-top: 20px;
}
.logout button {
    width: 100%; padding: 12px; border: none; border-radius: 6px;
    background: rgba(255,255,255,0.12); color: white; cursor: pointer;
}
.logout button:hover { background: rgba(255,255,255,0.2); }
@media (max-width: 700px) {
    .sidebar { width: 190px; }
    .topbar { padding: 15px; }
    .content { padding: 15px; }
}