styles.css

/* General styles for the page */
body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: auto;
    overflow-x: hidden;
    font-family: 'Arial', sans-serif;
    color: #fff;
    background: linear-gradient(120deg, #001d3d, #004080);
    line-height: 1.8;
}

/* Header */
header {
    background: rgba(0, 0, 0, 0.8);
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
    max-width: 100%;
    margin: 0 auto;
}

header h1 {
    font-size: 3em;
    color: #ffffff;
    text-shadow: 0 0 10px #ffffff, 0 0 20px #aaaaaa;
    font-family: 'Lobster', cursive;
    letter-spacing: 2px;
    display: inline-block; /* For proper centering */
}

h1::before {
    content: '';
    display: inline-block;
    width: 70px;
    height: 70px;
    background: url('images/sun.png') no-repeat center;
    background-size: contain;
    margin-right: 50px;
    vertical-align: middle;
    animation: glow 1.5s infinite alternate;
}

/* Glow animation */
@keyframes glow {
    from {
        filter: drop-shadow(0 0 10px #ffcc00) drop-shadow(0 0 20px #ffaa00);
    }
    to {
        filter: drop-shadow(0 0 20px #ffaa00) drop-shadow(0 0 40px #ff8800);
    }
}

/* Navigation */
nav {
    text-align: center;
}

nav ul {
    display: flex;
    justify-content: center;
    align-items: center;
    list-style: none;
    padding: 0;
    margin: 0;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    text-decoration: none;
    color: #ffcc00;
    font-weight: bold;
    transition: color 0.3s;
    font-family: 'Arial', sans-serif;
    font-size: 18px;
}

nav ul li a:hover {
    color: #ff8800;
}

/* Sections */
section {
    position: relative;
    padding: 50px;
    margin: 50px auto;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 15px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
    max-width: 900px;
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s ease-out;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

#science p {
    margin: 1.5rem 0; 
    line-height: 1.9; 
    text-align: justify;
    color: white;
}


/* Snow for even sections (left edge) */
section:nth-of-type(2n)::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 0;
    width: 100%;
    height: 50px;
    background: url('images/snow2.png') no-repeat left top;
    background-size: contain;
    z-index: 1;
}

/* Snow for odd sections (right edge) */
section:nth-of-type(2n+1)::before {
    content: '';
    position: absolute;
    top: -20px;
    right: 0;
    width: 100%;
    height: 50px;
    background: url('images/snow1.png') no-repeat right top;
    background-size: contain;
    z-index: 1;
}

/* For central sections (e.g., every 3rd) */
section:nth-of-type(3n)::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 50px;
    background: url('images/snow1.png') no-repeat center top;
    background-size: contain;
    z-index: 1;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Section headers */
section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 20px;
    color: #00ccff;
    text-shadow: 0 0 10px #00ccff, 0 0 20px #0066cc;
}

/* Text within sections */
section p {
    text-align: left;
    margin: 0 auto;
    color: #e0f7fa;
}



/* Section 1: image below text */
section:nth-of-type(1) {
    display: block;
}

section:nth-of-type(1)::after {
    content: '';
    display: block;
    margin: 20px auto 0;
    width: 100%;
    height: 620px;
    background: url('images/sec1.jpg') no-repeat center center;
    background-size: cover;
    border-radius: 20px;
}

/* Section 2: image below text */
section:nth-of-type(2) {
    display: block; 
}

section:nth-of-type(2)::after {
    content: '';
    display: block;
    margin: 20px auto 0;
    width: 100%;
    height: 420px;
    background: url('images/sec2.png') no-repeat center center;
    background-size: cover;
    border-radius: 20px;   
}

/* Section 3: image below text */
section:nth-of-type(3) {
    display: block; 
}

section:nth-of-type(3)::after {
    content: '';
    display: block;
    margin: 20px auto 0;
    width: 100%;
    height: 420px;
    background: url('images/sec3.webp') no-repeat center center;
    background-size: cover;
    border-radius: 20px;  
}


/* Section 4: Styles for the slider container */
.slider-container {
    position: relative;
    max-width: 90%;
    margin: 20px auto;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    color: white;
    opacity: 1;
}


/* Styles for slider container */
.slider-container {
    position: relative;
    max-width: 90%;
    margin: 20px auto;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Slides */
.slider {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.slide {
    min-width: 100%;
    height: 500px; /* Height of slides */
    background-size: cover;
    background-position: center;
}

/* Control buttons */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.5);
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    z-index: 10;
    padding: 10px;
    border-radius: 50%;
}

.slider-btn.prev {
    left: 10px;
}

.slider-btn.next {
    right: 10px;
}

/* Indicators (dots) */
.slider-dots {
    text-align: center;
    margin: 10px 0;
}

.slider-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    margin: 0 5px;
    background-color: #ccc;
    border-radius: 50%;
    cursor: pointer;
}

.slider-dot.active {
    background-color: #666;
}


/* Footer */
footer {
    text-align: center;
    padding: 10px 0;
    background: url('images/footer.png') repeat-x center bottom;
    background-size: auto 200px;
    color: #ffffff;
    position: relative;
    height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

footer p {
    margin: 5px 0;
    font-size: 0.9rem;
    text-shadow: none;
}

footer nav ul {
    list-style: none;
    padding: 0;
    margin: 5px 0 0;
    display: flex;
    justify-content: center;
}

footer nav ul li {
    margin: 0 10px;
}

footer nav ul li a {
    text-decoration: none;
    color: #ffcc00;
    transition: color 0.3s ease;
    text-shadow: 0 0 15px #000000;
}

footer nav ul li a:hover {
    color: #ff8800;
}

/* Snow animation */
.snowflake {
    position: absolute;
    top: 0;
    color: #fff;
    opacity: 0.8;
    animation: fall linear infinite;
    font-size: 20px;
    pointer-events: none;
}

@keyframes fall {
    0% {
        transform: translateY(-10%);
    }
    100% {
        transform: translateY(110vh);
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2.5rem;
        letter-spacing: 1px;
    }
}


/* Common styles for images in sections */
section img {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
}

/* Slider: styles for adaptation */
.slider-container {
    max-width: 90%;
    margin: 20px auto;
    overflow: hidden;
    position: relative;
}

.slider {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.slide {
    flex: 0 0 100%;
    height: 480px; 
    background-size: cover;
    background-position: center;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.5);
    color: #fff;
    border: none;
    font-size: 24px;
    padding: 10px;
    cursor: pointer;
    z-index: 2;
}

.slider-btn.prev {
    left: 10px;
}

.slider-btn.next {
    right: 10px;
}

.slider-dots {
    display: flex;
    justify-content: center;
    margin-top: 10px;
}

.slider-dot {
    width: 12px;
    height: 12px;
    margin: 0 5px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.5);
    cursor: pointer;
}

.slider-dot.active {
    background-color: #fff;
}

/* Media queries for images and slider */
@media (max-width: 1024px) {
   /* Reduce the height of slides */
    .slide {
        height: 250px;
    }

    /* Slider buttons are smaller */
    .slider-btn {
        font-size: 20px;
        padding: 8px;
    }

   /* Indicator dots are smaller */
    .slider-dot {
        width: 10px;
        height: 10px;
    }
}

@media (max-width: 768px) {
    /* Height of slides for tablets */
    .slide {
        height: 200px;
    }

    /* Increase indents for adaptation */
    .slider-container {
        max-width: 95%;
    }
}

@media (max-width: 480px) {
    /* Height of slides for mobile devices */
    .slide {
        height: 150px;
    }

    /* Reduce the size of the buttons */
    .slider-btn {
        font-size: 18px;
        padding: 5px;
    }

   /* Indicator dots are even smaller */
    .slider-dot {
        width: 8px;
        height: 8px;
    }

    /* Images are adjusted to fit small screens */
    section img {
        border-radius: 10px;
    }
}

@media screen and (max-width: 768px) {
    section {
        margin-bottom: 30px; 
    }
}


#backToTop {
    position: fixed;
    bottom: 100px;
    right: 100px; 
    width: 50px;
    height: 50px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-size: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    z-index: 1000;
    transition: opacity 0.3s ease, transform 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transform: translateY(100px);
}

#backToTop.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#backToTop:hover {
    background: rgba(0, 0, 0, 0.8);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.5);
}