body {
            /* background: linear-gradient(to right, #1e88e5 0%, #7b8fc2 50%, #e89a7e 100%); */
            min-height: 100vh;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        }
        .header {
            background: linear-gradient(to right, #1e88e5 0%, #1e88e5  50%, #1e88e5 100%);
            color: white;
        }
        .header h2 {
            font-size: 3rem;
            font-weight: bold;
            margin: 0;
        }

        .dropdown-menu a {
            font-weight: 500;
        }

        .dropdown-item:hover {
            background-color: #f9f9f9;
        }
        .header p {
            font-size: 1.2rem;
            margin: 5px 0 0 0;
            opacity: 0.95;
        }
        .main-container {
            /* background: #faf9f7; */
            min-height: calc(100vh - 150px);
            padding: 40px 20px;
        }
        .check-in-card {
            /* background: rgba(0,0,0,0.03); */
            /* border-radius: 15px; */
            padding: 30px;
            /* box-shadow: 0 2px 10px rgba(0,0,0,0.08); */
            height: fit-content;
            /* From https://css.glass */
            background: rgba(217, 213, 213, 0.48);
            border-radius: 16px;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(4.4px);
            -webkit-backdrop-filter: blur(4.4px);
            border: 1px solid rgba(217, 213, 213, 0.66);
        }
        .check-in-card h2 {
            font-size: 1.5rem;
            font-weight: 600;
            color: white;
            margin-bottom: 5px;
        }
        .check-in-card .subtitle {
            color: white;
            font-size: 0.95rem;
            margin-bottom: 25px;
        }
        .form-label {
            font-weight: 600;
            color: white;
            margin-bottom: 8px;
            font-size: 0.95rem;
        }
        .form-control {
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            padding: 12px 15px;
            font-size: 0.95rem;
            background: rgba(0,0,0,0.08);
            color: white;
        }
        .form-control:focus {
            border-color: #1e88e5;
            box-shadow: 0 0 0 0.2rem rgba(30, 136, 229, 0.15);
            background: rgba(0,0,0,0.08);
            color: white;
        }
        .btn-check-in {
            background: #1e88e5;
            color: white;
            border: none;
            border-radius: 10px;
            padding: 14px;
            font-size: 1.1rem;
            font-weight: 600;
            width: 100%;
            margin-top: 20px;
        }
        .btn-check-in:hover {
            background: #1976d2;
        }
        .active-sessions-card {
            /* background: rgba(0,0,0,0.08); */
            border-radius: 15px;
            padding: 30px;
            /* box-shadow: 0 2px 10px rgba(0,0,0,0.05); */
            max-height: 80vh;
            position: relative;
            overflow: auto;
        }
        .active-sessions-card h2 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #333;
            margin-bottom: 5px;
        }
        .session-badge {
            background: #1e88e5;
            color: white;
            border-radius: 50%;
            width: 35px;
            height: 35px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin-left: 10px;
            font-size: 1.1rem;
        }
        .subtitle-sessions {
            color: white;
            font-size: 0.95rem;
            margin-bottom: 25px;
        }
        .active-sessions-list {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: flex-start;
            color: black;
        }
        .child-card {
            /* background: #fafafa; */
            /* background: rgba(0,0,0,0.8); */
            background: rgba(217, 213, 213, 0.48);
            border-radius: 16px;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(4.4px);
            -webkit-backdrop-filter: blur(4.4px);
            border: 1px solid rgba(217, 213, 213, 0.66);
            border-radius: 12px;
            padding: 25px;
            position: relative;
            width: 310px;
            flex-shrink: 0;
        }
        .child-info {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-bottom: 20px;
            color: black;
        }
        .child-avatar {
            background: #e3f2fd;
            border-radius: 50%;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #1e88e5;
            font-size: 1.5rem;
            flex-shrink: 0;
        }
        .child-details {
            flex-grow: 1;
        }
        .child-name {
            font-size: 1.2rem;
            font-weight: 600;
            color: white;
            margin-bottom: 3px;
        }
        .child-age {
            color: black;
            font-size: 0.9rem;
            margin-bottom: 10px;
        }
        .child-contact {
            color: black;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .active-badge {
            position: absolute;
            top: 25px;
            right: 25px;
            background: #4caf50;
            color: white;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        .paid-badge {
            padding: 2px 8px;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-top: -15px !important;
        }
        .paid-badge.unpaid {
            background-color: red;
            color: white;
        }
        .paid-badge.paid {
            background-color: green;
            color: white;
        }

        .play-time-info {
            display: flex;
            align-items: center;
            gap: 8px;
            color: black;
            font-size: 0.9rem;
            margin-bottom: 8px;
        }
        .time-elapsed {
            color: white;
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 15px;
        }
        .btn-checkout {
            background: #1e88e5;
            color: white;
            border: none;
            border-radius: 10px;
            padding: 12px;
            font-size: 1rem;
            font-weight: 600;
            width: 100%;
        }
        .btn-checkout:hover {
            background: #1ab4fc;
        }

        .btn-pay-checkout{
            background: #1e88e5;
            color: white;
            border: none;
            border-radius: 10px;
            padding: 12px;
            font-size: 1rem;
            font-weight: 600;
            width: 100%;
        }

        .btn-pay-checkout:hover {
            background: #1ab4fc;
        }


        .btn-cancel {
            background: #e63a06;
            color: white;
            border: none;
            border-radius: 10px;
            padding: 12px;
            font-size: 1rem;
            font-weight: 600;
            width: 100%;
        }
        .btn-cancel:hover {
            background: #f4511e;
        }


        .btn-speak {
            background: #13a04e;
            color: white;
            border: none;
            border-radius: 10px;
            padding: 12px;
            font-size: 1rem;
            font-weight: 600;
            width: 100%;
        }
        .btn-speak:hover {
            background: #3fd464;
        }