html {
    scroll-behavior: smooth !important;
}
*{
    box-sizing: border-box;
    margin: 0;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
}

.top-nav {
    background-color: #004080;
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1000;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.bir-logo {
    height: 50px;
    width: auto;
}

.main-nav {

    transition: all 0.3s ease;
}

.main-nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.main-nav li {
    margin-right: 20px;
}

.main-nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    padding: 5px 10px;
    border-radius: 3px;
    transition: all 0.2s ease-in-out;
    display: block;
}

.main-nav a:hover {
    background-color: rgb(0, 105, 209);
    transform: scale(1.1);

}

.content {
    padding: 20px;
    background-color: white;
    margin: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.video-section {
    margin: 30px 0;
    padding: 20px;
    border-radius: 5px;
    background-color: #f9f9f9;
}

.video-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 20px;
}

.video-card {
    flex: 1 1 300px;
    min-width: 300px;
    background: white;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    margin-bottom: 15px;
  
}

.video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
   
}

h2 {
    color: #004080;
    border-bottom: 2px solid #004080;
    padding-bottom: 10px;
}

h3 {
    color: #003366;
    margin-top: 0;
}

.user-type-header {
    background-color: #004080;
    color: white;
    padding: 10px 15px;
    border-radius: 5px 5px 0 0;
    margin: 0 -15px;
    margin-top: -15px;
    margin-bottom: 15px;
}

.divtitle {
    font-weight: 700;
    font-size: 16px;
    margin: 5px;
}

.divdesc2 {
    color: rgb(96, 103, 116);
    font-size: 14px;
    margin: 7px;
}

footer {
    background-color: #003366;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 30px;
}

.login-btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: rgba(0, 123, 255, 0.38);
    color: white;
    text-decoration: none;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}


/* Hamburger Menu Styles */
.hamburger {
    display: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 5px 0;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Media Queries for Responsive Design */
@media only screen and (max-width: 768px) {
    .top-nav {
        flex-wrap: wrap;
        padding: 10px 15px;
    }

    .logo-container {
        order: 1;
        width: auto;
    }

    .hamburger {
        display: block;
        order: 3;
        margin-left: auto;
    }

    .login-btn {
        order: 2;
        margin-left: 15px;
    }

    .main-nav {
        order: 4;
        width: 100%;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .main-nav.active {
        max-height: 500px;
        padding: 10px 0;
    }

    .main-nav ul {
        flex-direction: column;
    }

    .main-nav li {
        margin-right: 0;
        margin-bottom: 0;
        text-align: center;
    }

    .main-nav a {
        padding: 12px 20px;
        border-radius: 0;
    }

    .content {
        margin: 10px;
        padding: 15px;
    }

    .video-section {
        padding: 15px;
        margin: 20px 0;
    }

    .video-card {
        min-width: 100%;
    }

    .video-container {
        gap: 15px;
    }

    h2 {
        font-size: 1.5rem;
    }

    .divtitle {
        font-size: 14px;
    }

    .divdesc2 {
        font-size: 12px;
    }

    .login-btn {
        padding: 8px 15px;
        font-size: 14px;
    }
}

@media only screen and (max-width: 480px) {
    .top-nav {
        padding: 8px 10px;
    }

    .bir-logo {
        height: 40px;
    }

    .content {
        padding: 10px;
        margin: 5px;
    }

    .video-section {
        padding: 10px;
    }

    h2 {
        font-size: 1.3rem;
        padding-bottom: 8px;
    }

    h3 {
        font-size: 1.1rem;
    }

    .user-type-header {
        padding: 8px 10px;
        font-size: 0.9rem;
    }

    footer {
        padding: 15px;
        font-size: 0.9rem;
    }

    .login-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
}