* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: #f4f6f9; color: #1f2933; }
header { background: #1f3a5f; color: #fff; padding: 12px 20px; display: flex; align-items: center; gap: 16px; }
header h1 { font-size: 18px; margin: 0; font-weight: 600; }
header .spacer { flex: 1; }
header button { background: rgba(255,255,255,.15); }
nav { display: flex; gap: 4px; background: #fff; padding: 0 12px; border-bottom: 1px solid #e2e8f0; flex-wrap: wrap; }
nav button { background: none; border: none; padding: 12px 16px; cursor: pointer; font-size: 14px; color: #52606d; border-bottom: 3px solid transparent; }
nav button.active { color: #1f3a5f; border-bottom-color: #1f3a5f; font-weight: 600; }
main { padding: 20px; max-width: 1200px; margin: 0 auto; }
button { background: #1f3a5f; color: #fff; border: none; border-radius: 6px; padding: 8px 14px; cursor: pointer; font-size: 14px; }
button.secondary { background: #e2e8f0; color: #1f2933; }
button:hover { opacity: .92; }
input, select, textarea { padding: 8px 10px; border: 1px solid #cbd2d9; border-radius: 6px; font-size: 14px; width: 100%; }
label { display: block; font-size: 13px; color: #52606d; margin: 8px 0 4px; }
table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid #eef1f4; font-size: 14px; }
th { background: #f0f4f8; font-weight: 600; color: #3e4c59; }
.card { background: #fff; border-radius: 8px; padding: 16px; box-shadow: 0 1px 3px rgba(0,0,0,.06); margin-bottom: 16px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.row > div { flex: 1; min-width: 140px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 12px; }
.badge.on { background: #def7ec; color: #03543f; }
.badge.off { background: #fde8e8; color: #9b1c1c; }
.badge.warn { background: #fdf6b2; color: #723b13; }
.login-box { max-width: 340px; margin: 80px auto; }
.muted { color: #7b8794; font-size: 13px; }
#map, #mapSesja { height: 380px; border-radius: 8px; margin-top: 12px; }
.thumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.thumbs a img { height: 110px; border-radius: 6px; border: 1px solid #d0d7de; }
.toolbar { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; align-items: flex-end; }
.hidden { display: none; }
.error { color: #9b1c1c; font-size: 13px; margin-top: 6px; }