* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}



/* General reset */
body, ul, h1, h2, h3, p {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Times New Roman', Times, serif;
    background-color: #ffffff; /* Neutral white background when no video */
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #1b8a3c; /* Green background */
    padding: 20px;
    width: 60%; /* Navbar occupies 3/5 of the screen width on desktop */
    margin: auto;
    color: white;
    position: relative;
    z-index: 10;
    border-radius: 10px; /* Subtle rounded edges */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); /* Subtle shadow */
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    font-size: 2rem;
    color: white;
    text-decoration: none; /* Remove underline for anchor tags */
    font-family: 'Times New Roman', Times, serif;
}

.logo:hover {
    text-decoration: none; /* Prevent underline on hover */
}

.logo-icon {
    height: 40px;
    width: 40px;
    margin-right: 10px;
}

/* Nav Links */
.nav-links {
    display: flex;
    justify-content: space-around;
    list-style: none;
    flex: 1;
}

.nav-links li {
    padding: 10px;
    text-align: center;
    transition: all 0.3s ease; /* Smooth hover effect */
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    font-family: 'Calibri', sans-serif; /* Nav items font */
    display: block;
    padding: 10px 20px; /* Make the clickable area larger */
}

/* Navbar hover */
.nav-links li:hover {
    background-color: #1A8A3B; /* Hover background */
    cursor: pointer;
    transform: scale(1.05); /* Slight hover grow effect */
}

.nav-links li:hover a {
    color: #ffffff; /* Green text on hover */
    font-size: 1.5rem; /* Larger text on hover */
    font-weight: bold;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background-color: #1b8a3c; /* Green background */
    padding: 10px;
    border-radius: 5px;
    transition: transform 0.3s ease; /* Fancy transition effect */
}

.hamburger span {
    height: 3px;
    width: 25px;
    background: white;
    margin: 4px 0;
    transition: all 0.3s ease; /* Smooth animation */
}

.hamburger:hover {
    transform: rotate(360deg); /* Rotate on hover */
}

.hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0; /* Hide middle bar */
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Background Video */
#backgroundvideo {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
}

#backgroundvideo video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.5; /* Half opacity for a neutral effect */
    
    pointer-events: none;
    user-select: none;
    
}

/* Large Title Text */
#title_text {
    position: relative;
    text-align: center;
    color: black; /* Title text color updated to black */
    font-size: 7vw; /* Dynamically scale text size for larger mobile view */
    font-weight: bold;
    margin-top: 25vh;
    z-index: 5;
}

/***** fade in *****/

body {
    opacity: 0;
    animation: fadeIn 3s ease forwards;
}


@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Footer */
.footer {
    background-color: #1b8a3c; /* Same green as navbar */
    color: white;
    text-align: center;
    padding: 15px 0;
    font-family: 'Times New Roman', Times, serif;
    position: fixed;
    bottom: 0;
    width: 100%;
}

/* Default support for h1, h2, h3, p */
h1 {
    font-size: 3rem; /* Largest size */
    color: black;
    margin: 20px 40px; /* Farther away from the left */
}

h2 {
    font-size: 2.5rem; /* Medium size */
    color: black;
    margin: 20px 40px;
}

h3 {
    font-size: 2rem; /* Smallest size among headers */
    color: black;
    margin: 20px 40px;
}

p {
    font-size: 1.5rem; /* Smaller than headers */
    color: black;
    margin: 40px 40px;
}

::-moz-selection { /* Code for Firefox */
    color: white;
    background: #1b8a3c;
}
  
::selection {
    color: white;
    background: #1b8a3c;
}

/*************service list***************/
/* General reset */
body {
    font-family: 'Times New Roman', Times, serif;
    background-color: #ffffff; /* Neutral white background when no video */
}

/* Title Text */
#title_text {
    position: relative;
    text-align: center;
    color: black;
    font-size: 4vw; /* Dynamically scale text size */
    font-weight: bold;
    margin-top: 5vh;
    z-index: 5;
}

#title_text_small {
    position: relative;
    text-align: center;
    color: black;
    font-size: 2vw; /* Smaller than title_text */
    font-weight: normal;
    margin-top: 10px;
    z-index: 5;
}

/* Service List */
#service_list {
    display: flex;
    justify-content: space-around;
    align-items: flex-start;
    flex-wrap: wrap; /* Allows wrapping to a new row */
    padding: 20px;
    margin: 40px auto;
    max-width: 90%; /* Constrain the width */
    gap: 20px; /* Space between items */
}

#service {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background-color: white;
    border-radius: 10px; /* Rounded corners */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); /* Subtle shadow */
    text-decoration: none;
    padding: 20px;
    width: 17%; /* Fit 4 items horizontally on large screens */
    transition: all 0.3s ease; /* Smooth hover effect */
}

#service img {
    width: 100px; /* Fixed image size */
    height: 100px;
    margin-bottom: 10px;
}

#service p {
    color: black;
    font-size: 1.2rem;
    margin: 10px 0;
}

#service:hover {
    transform: scale(1.05); /* Slight hover grow effect */
    background-color: #1b8a3c; /* Turn green */
}

#service:hover p {
    color: white; /* Change text color on hover */
}

#service:hover img {
    filter: brightness(0.8); /* Slightly darken image on hover */
}

/* BUTTON */
button {
    display: block;
    margin: 20px auto; /* Center horizontally and add spacing */
    padding: 10px 20px; /* Add padding for a better button size */
    background-color: #1b8a3c; /* Green background */
    color: white; /* White text */
    border: none; /* Remove default border */
    border-radius: 5px; /* Rounded corners */
    font-family: 'Calibri', sans-serif; /* Match font with <p> */
    font-size: 1.2rem; /* Match <p> font size */
    cursor: pointer; /* Pointer cursor on hover */
    transition: background-color 0.3s ease, transform 0.2s ease; /* Smooth effects */
}

button:hover {
    background-color: #1A8A3B; /* Gold background on hover */
    transform: scale(1.05); /* Slightly enlarge button on hover */
}
/* Navbar */
.navbar {
    position: sticky; /* Makes the navbar stick to the viewport */
    height: 70px; /* Set navbar height */
    display: flex;
    align-items: center; /* Center items vertically */
    justify-content: space-between; /* Space between logo and other elements */
    padding: 0 20px; /* Add horizontal padding */
    width: 90%; /* Limit navbar width on PC */
    margin: 0 auto; /* Center the navbar on PC */
    border-radius: 10px; /* Subtle rounded edges */
    background-color: #1b8a3c; /* Green background */
    box-sizing: border-box; /* Include padding in the width calculation */
    top: 0; /* Sticks the navbar to the top of the viewport */
    z-index: 1000; /* Ensures the navbar stays above other content */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2); /* Optional shadow for a subtle effect */
}

.hamburger {
    margin-left: auto; /* Push the hamburger to the far right within the navbar */
    padding: 15px; /* Add padding for better click area */
    background-color: #1b8a3c; /* Match navbar background */
    border: none; /* Remove any border */
    border-radius: 5px; /* Optional rounded edges */
    cursor: pointer; /* Pointer cursor for interactivity */
}


h1, h2, h3, p {
    margin: 10px 60px;
}

#yt_vid {
    display: block; /* Ensures the video behaves like a block element */
    margin: 20px auto; /* Center the video horizontally and add vertical spacing */
    width: 60%; /* Smaller width on PC */
    max-width: 600px; /* Limit the maximum width */
    max-height: 338px; /* Adjust maximum height for PC */
}

/* Media query to hide hamburger when there's enough space for all elements */
@media (min-width: 768px) {
    .hamburger {
        display: none; /* Hide the hamburger on larger screens */
    }

    .nav-links {
        display: flex; /* Show full navbar links */
    }
}

/* Responsive Styles */
@media (max-width: 768px) {
    .navbar {
        width: 90%; /* Take up most of the screen on mobile */
    }

    .hamburger {
        display: flex; /* Visible only on mobile */
    }

    .nav-links {
        display: none;
        flex-direction: column;
        background-color: #1b8a3c;
        position: absolute;
        right: 10px;
        top: 70px;
        width: 150px;
        padding: 10px;
    }

    .nav-links.active {
        display: flex;
    }

    #title_text {
        font-size: 10vw; /* Larger text for mobile devices */
    }

    h1 {
        font-size: 2.8rem; /* Slightly smaller for mobile */
    }

    h2 {
        font-size: 2.3rem; /* Slightly smaller for mobile */
    }

    h3 {
        font-size: 2rem; /* Consistent size for smaller screens */
    }

    p {
        font-size: 1.4rem; /* Consistent paragraph size for mobile */
    }

    h1, h2, h3, p {
        margin: 20px 20px; /* Adjust left margin for smaller screens */
    }
    #service {
        width: 35%; /* Fit 2 items per row on mobile */
    }

    #title_text {
        font-size: 10vw; /* Larger title for mobile */
    }

    #title_text_small {
        font-size: 6vw; /* Adjust size for smaller screens */
    }
    
    #yt_vid {
        width: calc(100% - 40px); /* Fit entire screen width minus 20px margin on each side */
        height: calc((100% - 40px) * 9 / 16) + 30px; /* Increase height with a 4:3 aspect ratio */
        margin: 20px; /* Add margin around the video */
    }
}

.align_left {
    float: left; /* Align the image to the left */
    margin: 40px 40px 40px 40px; /* Add spacing around the image */
    max-width: 50%; /* Limit the image size to half the container width */
    max-height: 300px; /* Set a maximum height */
    display: block; /* Ensure the image behaves as a block element */
}

.align_right {
    float: right; /* Align the image to the right */
    margin: 40px 40px 40px 40px; /* Add spacing around the image */
    max-width: 50%; /* Limit the image size to half the container width */
    max-height: 300px; /* Set a maximum height */
    display: block; /* Ensure the image behaves as a block element */
}

.align_center {
    display: block; /* Center image on its own line */
    margin: 40px auto; /* Center the image horizontally and add vertical spacing */
    max-width: 80%; /* Limit the image size to 80% of the container width */
    max-height: 300px; /* Set a maximum height */
    box-sizing: border-box; /* Include padding/margin in the box model */
}


p a:link{
    color:#1A94C0;
}

p a:visited{
    color:#1A94C0;
}

p a:active{
    color:yellow;
    background-color: purple;
}
p a:hover{
    color:#ffffff;
    background-color: #1b8a3c;
}

#title_text_small a:link{
    color:black;
    /* text-decoration: none; */
}

#title_text_small a:visited{
    color:black;
    /* text-decoration: none; */
}

#title_text_small a:active{
    color:yellow;
    background-color: purple;
    /* text-decoration: none; */
}
#title_text_small a:hover{
    color:#ffffff;
    background-color: #1b8a3c;
    /* text-decoration: none; */
}