:root {
    --primary-color: #0078d4;
    --bg-color: #f4f4f4;
    --card-bg: #ffffff;
    --text-color: #333;
    --obs-bg: rgba(0, 0, 0, 0.8);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

.card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

/* Logo Styles */
.header-logos {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.logo-fixed, .logo-optional {
    max-height: 80px;
    max-width: 200px;
    object-fit: contain;
}

h1 { color: var(--primary-color); margin-top: 10px; }

.schedule-table {
    width: 100%;
    border-collapse: collapse;
}

.schedule-table th, .schedule-table td {
    text-align: left;
    padding: 12px;
    border-bottom: 1px solid #eee;
}

.time-cell {
    font-weight: bold;
    color: var(--primary-color);
    width: 100px;
}

.admin-form input, .admin-form select {
    padding: 8px;
    margin: 5px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.btn {
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.btn-primary { background: var(--primary-color); color: white; }
.btn-danger { background: #d83b01; color: white; }

/* OBS Overlay Styles */
.obs-view {
    background: transparent;
    color: white;
    padding: 10px;
}

.obs-item {
    background: var(--obs-bg);
    margin-bottom: 5px;
    padding: 10px;
    border-left: 5px solid var(--primary-color);
    display: flex;
    justify-content: space-between;
    font-size: 24px;
}