body {
    background-color: #f4f6f9;
    font-family: 'Segoe UI', Arial, sans-serif;
}

.app-navbar {
    background-color: #2c3e6b;
}

.notif-badge {
    position: absolute;
    top: 2px;
    right: -4px;
    font-size: 0.6rem;
}

.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.card-stat h2 {
    font-weight: 700;
}

.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2c3e6b 0%, #4a63a8 100%);
}

.login-card {
    max-width: 400px;
    width: 100%;
    border-radius: 14px;
}

.table thead th {
    background-color: #f0f2f7;
    border-bottom: none;
    font-size: 0.85rem;
    text-transform: uppercase;
    color: #555;
}

#calendar {
    background: #fff;
    padding: 16px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.badge { font-weight: 500; }

.room-slot-available { color: #198754; font-weight: 600; }
.room-slot-unavailable { color: #dc3545; font-weight: 600; }