body {
    margin: 0;
    padding: 0;
    background: linear-gradient(-45deg, #0a0a0a, #1a1a1a, #0a0a0a, #1a1a1a);
    background-size: 400% 400%;
    font-family: 'Arial', sans-serif;
    color: white;
    text-align: center;
    animation: gradientBG 15s ease infinite;
}


nav {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px 40px;
    position: fixed;
    top: 0;
    left: 0;
    background: linear-gradient(90deg, #1a1a1a, #111, #1a1a1a);
    box-shadow: 0 4px 20px rgba(0,0,0,0.7);
    z-index: 100;
    gap: 50px;
}

nav .logo-nav {
    height: 50px;
    width: 50px;
    border-radius: 50%;
    border: 2px solid #ff0000;
    padding: 3px;
    box-shadow: 0 0 10px #ff4d4d;
    object-fit: cover;
    margin-right: auto;
    transition: all 0.4s ease;
}

nav .logo-nav:hover {
    transform: scale(1.15);
    box-shadow: 0 0 15px #ff4d4d, 0 0 30px red;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 50px;
    align-items: center;
}

nav ul li a {
    font-size: 20px;
    font-weight: bold;
    color: white;
    text-decoration: none;
    padding: 10px 15px;
    transition: all 0.4s ease;
}

nav ul li a:hover {
    color: #ff0000;
    text-shadow: 0 0 8px #ff4d4d, 0 0 16px red;
}


.container {
    margin-top: 160px;
    margin-bottom: 150px;
    padding: 20px;
}


h1 {
    font-size: 45px;
    color: #ff2e2e;
    text-shadow: 0 0 10px red, 0 0 20px darkred;
    margin-bottom: 20px;
}

h2 {
    font-size: 28px;
    color: #ff4d4d;
    margin-bottom: 15px;
}


p {
    color: #ccc;
    font-size: 18px;
    margin-bottom: 20px;
}


.download-btn {
    background: linear-gradient(45deg, #ff0000, #ff4d4d);
    border: none;
    padding: 15px 40px;
    font-size: 20px;
    text-decoration:none;
    color: white;
    border-radius: 15px;
    cursor: pointer;
    box-shadow: 0 0 15px red;
    transition: all 0.3s ease;
    text-decoration: none;
}

.download-btn:hover {
    transform: scale(1.15);
    box-shadow: 0 0 40px red, 0 0 70px #ff4d4d;
    background: linear-gradient(45deg, #ff4d4d, #ff1a1a);
}


.ppt-container {
    margin-top: 40px;
    width: 90%;
    max-width: 1000px;
    height: 600px;
    margin-left: auto;
    margin-right: auto;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 0 25px rgba(255,0,0,0.5);
}

.ppt-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}


.social-bar {
    width: 100%;
    background-color: #111;
    padding: 15px 0;
    position: fixed;
    bottom: 0;
    left: 0;
    display: flex;
    justify-content: center;
    gap: 40px;
    box-shadow: 0 -2px 15px rgba(0,0,0,0.6);
}

.social-bar a {
    color: #ff0000;
    font-size: 28px;
    transition: all 0.4s ease;
}

.social-bar a:hover {
    color: #ff4d4d;
    transform: rotate(-15deg) scale(1.3);
    text-shadow: 0 0 15px #ff4d4d, 0 0 30px red;
}


.image-gallery {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin: 50px auto;
    max-width: 900px;
}

.image-gallery img {
    width: 250px;
    height: 150px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 0 15px rgba(255,0,0,0.5);
    transition: transform 0.3s, box-shadow 0.3s;
}

.image-gallery img:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px #ff4d4d, 0 0 50px red;
}


.user-comments .comment {
    background: #1a1a1a;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 15px;
    box-shadow: 0 0 10px rgba(255,0,0,0.3);
    transition: all 0.4s ease;
    cursor: pointer;
    text-align: left;
}

.user-comments .comment:hover {
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 0 20px #ff4d4d, 0 0 40px red;
    background: linear-gradient(145deg, #1a1a1a, #111);
}

.user-comments .comment .author {
    font-weight: bold;
    color: #ff4d4d;
    margin-bottom: 5px;
}

.user-comments .comment .text {
    color: #ccc;
}

.social-bar {
    width: 100%;
    background-color: #111;
    padding: 15px 0;
    position: fixed;
    bottom: 0;
    left: 0;
    display: flex;
    justify-content: center;
    gap: 40px;
    box-shadow: 0 -2px 15px rgba(0,0,0,0.6);
}

.social-bar a {
    color: #ff0000;
    font-size: 28px;
    transition: all 0.4s ease;
}
.social-bar i {
    font-family: "Font Awesome 6 Brands";
}
.social-bar a:hover {
    color: #ff4d4d;
    transform: rotate(-15deg) scale(1.3);
    text-shadow: 0 0 15px #ff4d4d, 0 0 30px red;
}


.ppt-container {
    width: 95%;
    height: 85vh;
}


.buttons-container {
    margin-top: 20px;
}


.download-btn {
    display: inline-block;
    background: linear-gradient(45deg, #ff0000, #ff4d4d);
    border: none;
    padding: 15px 35px;
    font-size: 18px;
    color: white;
    border-radius: 12px;
    cursor: pointer;
    margin: 10px;
    box-shadow: 0 0 15px red;
    transition: all 0.3s ease;
    text-decoration: none;
}

.download-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 30px #ff4d4d, 0 0 50px red;
}


.fullscreen-btn {
    background: linear-gradient(45deg, #ff1a1a, #ff6666);
    border: none;
    padding: 15px 35px;
    font-size: 18px;
    color: white;
    border-radius: 12px;
    cursor: pointer;
    margin: 10px;
    box-shadow: 0 0 15px #ff4d4d;
    transition: all 0.3s ease;
}

.fullscreen-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 30px #ff4d4d, 0 0 50px red;
}
.contact-icons {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 20px;
}

.contact-icons a {
    color: #ff0000;
    font-size: 36px;
    transition: all 0.4s ease;
}

.contact-icons a:hover {
    color: #ff4d4d;
    transform: scale(1.3) rotate(-10deg);
    text-shadow: 0 0 15px #ff4d4d, 0 0 30px red;
}



@keyframes gradientBG {
    0% {background-position: 0% 50%;}
    50% {background-position: 100% 50%;}
    100% {background-position: 0% 50%;}
}


.fade-section {
    opacity: 0;
    text-decoration:none;
    transform: translateY(40px);
    animation: fadeInSection 1.5s ease forwards;
    animation-delay: 0.5s;
}


@keyframes fadeInSection {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-section {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInSection 1.2s ease forwards;
    animation-delay: 0.3s;
}


@keyframes fadeInSection {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


.container h1 {
    color: #f51717;
    text-shadow: 0 0 8px #ff8888;
    font-size: 48px;
    margin-bottom: 20px;
}

.container h2 {
    color: #f01c1c;
    text-shadow: 0 0 6px #ffaaaa;
    margin: 30px 0 15px;
    font-size: 28px;
}


.container p {
    color: #eee;
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.container a {
    color: #940d0d;
    text-decoration: none;
    transition: all 0.3s ease;
}

.container a:hover {
    color: #f33636;
    text-shadow: 0 0 8px #ff8888;
}

.download-btn {
    display: inline-block;
    margin: 25px auto;
    background: linear-gradient(45deg, #e48d8d, #ff7777);
    border: none;
    padding: 15px 35px;
    font-size: 20px;
    color: white;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 0 15px #ff5555;
    text-decoration: none;
    transition: all 0.3s ease;
}

.download-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 0 35px #ff7777, 0 0 60px #ff5555;
    background: linear-gradient(45deg, #ff7777, #ffaaaa);
}

.social-bar a:hover {
    color: #ff9999;
    transform: scale(1.3);
    text-shadow: 0 0 15px #ff9999, 0 0 30px #ff5555;
}

.fade-section {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInSection 1.2s ease forwards;
    animation-delay: 0.3s;
}

@keyframes fadeInSection {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.contact-form, .contact-info {
    background: rgba(17,17,17,0.85);
    padding: 20px 25px;
    margin: 25px 0;
    border-radius: 15px;
    box-shadow: 0 0 20px rgba(255,0,0,0.4);
}

.contact-form h2, .contact-info h2 {
    color: #ff7777;
    text-shadow: 0 0 6px #ffaaaa;
    margin-bottom: 15px;
    font-size: 24px;
}

.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border-radius: 10px;
    border: 2px solid #ff5555;
    background-color: #1a1a1a;
    color: #eee;
    font-size: 16px;
    outline: none;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.contact-form input:focus, .contact-form textarea:focus {
    border-color: #ff8888;
    box-shadow: 0 0 15px #ff8888;
}

.contact-form button {
    background: linear-gradient(45deg, #ff5555, #ff7777);
    border: none;
    color: white;
    padding: 12px 30px;
    font-size: 18px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.contact-form button:hover {
    transform: scale(1.08);
    box-shadow: 0 0 35px #ff7777, 0 0 60px #ff5555;
}

.contact-info p {
    color: #eee;
    font-size: 16px;
    margin: 8px 0;
}

.contact-info a {
    color: #ff9999;
    text-decoration: underline;
}

.contact-info a:hover {
    color: #ffcccc;
    text-shadow: 0 0 6px #ff8888;
}

.contact-icons, .contact-icons a {
    text-align: center;
    margin-top: 20px;
}

.contact-icons a {
    font-size: 28px;
    margin: 0 15px;
    color: #ff5555;
    transition: all 0.3s ease;
}

.contact-icons a:hover {
    color: #ff9999;
    transform: scale(1.3);
    text-shadow: 0 0 15px #ff9999, 0 0 30px #ff5555;
}
@media (max-width: 768px) {

    nav {
        padding: 8px 20px;
        gap: 20px;
    }

    nav .logo-nav {
        height: 35px;
        width: 35px;
    }

    nav ul {
        gap: 20px;
    }

    nav ul li a {
        font-size: 14px;
        padding: 6px 8px;
    }

    .container {
        margin-top: 120px;
        padding: 10px;
    }

    h1 {
        font-size: 28px;
    }

    h2 {
        font-size: 22px;
    }

    p {
        font-size: 15px;
    }

    .logo {
        width: 180px;
    }

    .download-btn {
        font-size: 15px;
        padding: 10px 20px;
    }

    .image-gallery img {
        width: 200px;
        height: 120px;
    }

    .video-section iframe {
        height: 220px;
    }

    .social-bar {
        gap: 20px;
        padding: 10px 0;
    }

    .social-bar a {
        font-size: 22px;
    }

}@media (max-width: 768px) {

    .container {
        padding-left: 15px;
        padding-right: 15px;
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }
    @media (max-width: 768px) {

        nav {
            left: 15px;
            right: 15px;
            width: auto;
            border-radius: 10px;
        }
    
    }
}