body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            line-height: 1.6;
            background-color: #f4f4f4;
        }

        header {
            background: #333;
            color: #fff;
            padding: 10px 0;
            text-align: center;
            position: relative;
        }

        header img {
            position: absolute;
            top: 10px;
            left: 10px;
            height: 100px;
        }

        nav {
            background: #444;
            overflow: hidden;
        }

     nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}
.switch {
            position: relative;
            display: inline-block;
            width: 50px;
            height: 24px;
        }

        .switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #ccc;
            transition: 0.4s;
            border-radius: 24px;
        }

        .slider:before {
            position: absolute;
            content: "";
            height: 18px;
            width: 18px;
            left: 4px;
            bottom: 3px;
            background-color: white;
            transition: 0.4s;
            border-radius: 50%;
        }

        input:checked + .slider {
            background-color: #4CAF50;
        }

        input:checked + .slider:before {
            transform: translateX(26px);
        }

        nav ul li {
            margin: 0;
        }

        nav ul li a {
            color: #fff;
            text-decoration: none;
            padding: 10px 20px;
            display: block;
        }

        nav ul li a:hover {
            background: #555;
        }

        .container {
            display: flex;
            margin: 20px;
        }

        .left-column, .right-column {
            padding: 15px;
            background: #eee;
        }

        .main-container, .center-column {

            padding: 15px;
            background: #fff;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);

        }

        .main-container{
            width: 90%;
        }
        
        .justify-content-center{
            justify-content: center;
        }

        .display-flex{
            display: flex;
        }





        footer {
            background: #333;
            color: #fff;
            text-align: center;
            padding: 10px 0;
            position: relative;
            bottom: 0;
            width: 100%;
        }
       
        .hidden{
            display: none;
        }
    

      .card {
    max-width: 600px;
    margin: auto;
    margin-top: 50px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
  }
  .form-label {
    font-weight: bold;
  }
  .btn-primary {
    background-color: #333333;
    border-color: #333333;
  }
  .btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
  }
  .timer {
            font-size: 24px;
            color: #333;
            margin-top: 20px;
        }
.disabled-lesson {
    pointer-events: none; 
    opacity: 0.6; 
    background-color: #f8f9fa;
}



/*.form-sec {
    max-width: 500px;
    margin-block: 40px;
    padding: 20px;
    border: 1px solid #f2f2f2;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    font-family: Arial, sans-serif;
    width: 100%;
    background: #f7f7f7;
}*/


.form-sec label {
    display: block;
    margin-bottom: 10px;
    color: #333;
}

.form-sec input, .form-sec textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
   /* border: 1px solid #ccc;*/
    font-size: 16px;
    box-sizing: border-box;
    border-bottom: 1px solid #000 !important;
    border: none;
    background: #00000008;
}
  .form-sec input:focus,
.form-sec textarea:focus {
    border-color: #198754;
    outline: none;
    box-shadow: 0 0 5px rgba(0,123,255,0.3);
  }

.form-sec button {
    background: #198754;
    color: #fff;
    border: none;
    padding: 10px 24px;
    border-radius: 50px;
    font-size: 16px;
    transition: background 0.3s ease;
}

  .form-sec button:hover {
    background: #007bff;
  }


.contact-info {
    padding: 20px;
    border-radius: 8px;
    font-family: Arial, sans-serif;
    color: #333;
    line-height: 1.6;
}
.contact-info h2 {
    font-size: 26px;
    font-weight: 600;
}

  .contact-info a {
    color: #007bff; /* blue link color */
    text-decoration: none;
    transition: color 0.3s ease;
  }

  .contact-info a:hover {
    text-decoration: underline;
    color: #0056b3;
  }

/*-- FAQ --*/
.faq-container h1 {
    text-align: center;
    margin-bottom: 20px;
    color: #333333;
    font-size: 30px;

}

/* FAQ block styling */
.faq {
    margin-bottom: 20px;
    background: #fff;
    border: 1px solid transparent;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}
.faq.active {
    border: 1px solid #d1cccc47;
}

.faq h3 {
    margin: 0;
    font-size: 18px;
    color: #000;
    cursor: pointer;
    padding: 12px 40px 12px 12px;
    background: #f2f2f2;
    position: relative;
}

.faq h3::after {
    content: "+";
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    color: #000;
}

/* When active, change the icon to minus */
.faq.active h3::after {
    content: "-";
}

.faq p {
    margin: 0;
    font-size: 16px;
    color: #555;
    padding: 0 12px;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, opacity 0.5s ease, padding 0.5s ease;
}

/* Active FAQ state */
.faq.active p {
    max-height: 450px;
    opacity: 1;
    padding: 12px;
}

li.category-item {
    border-bottom: 1px solid #000;
    background: #f2f2f2;
    padding: 6px;
    border-radius: 2px;
}
li.category-item a {
    text-decoration: none;
    color: #000;
}
li.category-item:hover {
    background: #ddd;
}
.categories-items {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
/*.chat-icon {
    position: sticky;
    bottom: 0;
    right: 20px;
    background-color: #007bff;
    color: white;
    padding: 15px;
    border-radius: 50%;
    font-size: 24px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    margin-bottom: 13px;
}
*/
.chat-icon {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #007bff;
    color: white;
    padding: 15px;
    border-radius: 50%;
    font-size: 24px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9;
}
 .chat-modal {
    position: fixed;
    bottom: 100px;
    right: 20px;
    width: clamp(280px, 90vw, 400px);
    background: white;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    display: none;
    flex-direction: column;
    overflow: hidden;
    z-index: 10;
}
        /* Chat Header */
        .chat-header {
            background: #007bff;
            color: white;
            padding: 10px;
            text-align: center;
            font-weight: bold;
        }

        /* Chat Body */
        .chat-body {
            padding: 10px;
            height: 400px;
            overflow-y: auto;
            background: #fff;
        }

        /* Chat Input */
        .chat-footer {
            padding: 10px;
            display: flex;
            border-top: 1px solid #ddd;
        }

        .chat-footer input {
            flex: 1;
            padding: 8px;
            border: none;
            border-radius: 5px;
            outline: none;
        }

        .chat-footer button {
            background: #007bff;
            color: white;
            border: none;
            padding: 8px;
            margin-left: 5px;
            cursor: pointer;
            border-radius: 5px;
        }
        .user p{
            background: #ddd;
            border-radius: 10px 10px 0 10px;
            padding: 2px 6px;
            font-size: 14px;
        }
         .admin p{
            background: #000;
            border-radius: 10px 10px 0 10px;
            padding: 2px 6px;
            font-size: 14px;
        }


/*--responsive--*/

@media (max-width: 1120px) {
 header h1 {
    width: 85%;
    margin-left: 11%;
    margin-right: auto;
}
header img {
    top: 4px;
}
}

@media (max-width: 1025px) {
.chat-modal {
    bottom: 73px !important;
}
}
@media (max-width: 900px) {

  header img {
    position: relative;
    top: 0;
    width: 100%;
    object-fit: contain;
    left: 0;
}
header h1 {
    margin-top: 5px !important;
    width: 100%;
    margin: 0 auto;
}

}
@media (max-width: 330px) {

    .form-control {
    padding: .375rem .5rem;
    font-size: 0.9rem;
}

}