:root {
    --primary: #1565C0;
    --primary-dark: #0D47A1;
    --accent: #00BCD4;
    --bg: #F0F4F8;
    --card-shadow: 0 2px 12px rgba(0,0,0,0.1);
}

body {
    background: var(--bg);
    font-family: 'Segoe UI', sans-serif;
    font-size: 14px;
}

/* Navbar */
.navbar-brand img { height: 36px; }
.navbar { background: var(--primary) !important; }
.navbar .nav-link, .navbar-brand { color: #fff !important; }
.navbar .nav-link:hover { color: rgba(255,255,255,.8) !important; }

/* Cards */
.card { border: none; border-radius: 10px; box-shadow: var(--card-shadow); }
.card-header { border-radius: 10px 10px 0 0 !important; font-weight: 600; }

/* Station cards */
.station-card { transition: transform .15s, box-shadow .15s; cursor: pointer; }
.station-card:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(0,0,0,.15); }
.station-card .rain-value { font-size: 2rem; font-weight: 700; }
.station-card .rain-unit { font-size: 0.85rem; color: #888; }

/* Rain level badges */
.badge-none     { background: #6c757d; }
.badge-light    { background: #17a2b8; }
.badge-moderate { background: #28a745; }
.badge-heavy    { background: #ffc107; color: #000 !important; }
.badge-extreme  { background: #dc3545; }

/* Map */
#map { height: 380px; border-radius: 10px; }

/* Table */
.table-rain thead th { background: var(--primary); color: #fff; }
.table-rain tbody tr:hover { background: #e8f0fe; }

/* Login */
.login-wrap { min-height: 100vh; background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%); }
.login-card { max-width: 420px; border-radius: 16px; }

/* Status dot */
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-online { background: #28a745; animation: pulse 2s infinite; }
.dot-offline { background: #dc3545; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }

/* Sidebar */
.sidebar { min-height: calc(100vh - 60px); background: #fff; border-right: 1px solid #dee2e6; }
.sidebar .nav-link { color: #444; padding: 10px 16px; border-radius: 6px; }
.sidebar .nav-link.active, .sidebar .nav-link:hover { background: #e8f0fe; color: var(--primary); }
.sidebar .nav-link i { width: 20px; }

/* Chart container */
.chart-wrap { position: relative; height: 260px; }

/* Responsive */
@media (max-width: 768px) {
    #map { height: 280px; }
    .station-card .rain-value { font-size: 1.5rem; }
}