body {
    background-color: #f7f7fb;
}

.card {
    border: none;
    border-radius: 1rem;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.05);
    margin-bottom: 1rem;
}

.card h5 {
    font-size: 1.25rem;
}

.good {
    color: green;
}

.offline {
    color: red;
}

.calendar .active {
    background-color: #0d6efd;
    color: white;
    border-radius: 50%;
}

.calendar .text-warning {
    color: #ffc107;
    font-weight: bold;
}

.sidebar {
    height: 100vh;
    background-color: #1f2937;
    color: white;
    padding-top: 1rem;
    position: fixed;
    width: 250px;
    transition: transform 0.3s ease;
}

.sidebar.collapsed {
    transform: translateX(-100%);
}

.sidebar a {
    color: #cbd5e0;
    text-decoration: none;
    display: block;
    padding: 0.75rem 1.25rem;
}

.sidebar a:hover, .sidebar a.active {
    background-color: #374151;
    color: white;
}

.main-content {
    padding-left:10em; 
    padding-right:10em;
    transition: margin-left 0.3s ease;
}

.main-content.full-width {
    margin-left: 0;
}

.toggle-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: black;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 600px;
    margin: 0 auto 20px auto;
}

.arrow {
    cursor: pointer;
    font-size: 1.5em;
    padding: 0 20px;
    user-select: none;
}

.calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    max-width: 600px;
    margin: auto;
}

.day {
    background: white;
    border: 2px solid #ffffff;
    border-radius: 8px;
    padding: 3px;
    text-align: center;
    font-size: 1.2em;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.day-header {
    font-weight: bold;
    background: #ddd;
    border-radius: 8px;
    padding: 3px;
    text-align: center;
    font-size: 1.2em;
}

.today {
    background: #007BFF !important;
    color: white;
    font-weight: bold;
}

#month-title {
    font-size: 1.8rem;
}

.chart-container {
    position: relative;
    width: 100%;
    height: 300px;
    max-width: 900px;
    margin: auto;
}

#pmChart {
    height: 400px;
}

.overlay-controls {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.overlay-controls button {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 6px;
    font-size: 16px;
    cursor: pointer;
}


.today {
    background: #007BFF;
    color: white;
    font-weight: bold;
}

.data-day {
    background-color: #e0ffe0;
    border: 2px solid #4caf50;
}

.overlay-controls button:hover {
    background: #f0f0f0;
}

.pm10-green {
    background-color: #d4edda; /* light green */
    border: 2px solid #28a745; /* green */
    color: #155724;
    font-weight: bold;
}

.pm10-orange {
    background-color: #fff3cd; /* light orange */
    border: 2px solid #ffb300; /* orange */
    color: #856404;
    font-weight: bold;
}

.pm10-red {
    background-color: #f8d7da; /* light red */
    border: 2px solid #dc3545; /* red */
    color: #721c24;
    font-weight: bold;
}

@media (max-width: 1200px) {
    .main-content {
        padding-left: 0; 
        padding-right: 0;
    }
}