body {
    background-color: #0d0d0d;
    color: #ffffff;
    font-family: 'Orbitron', sans-serif;
    overflow-x: hidden;
    margin: 0;
}

/* Preloader */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #0d0d0d;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.loader {
    width: 50px;
    height: 50px;
    border: 5px solid #00ffff;
    border-top: 5px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Scroll Progress Bar */
#progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: #00ffff;
    width: 0;
    z-index: 1500;
    transition: width 0.3s ease;
}

/* Navbar */
.navbar {
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.4);
    z-index: 1000;
    padding: 1rem 0;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    position: absolute;
    left: 15px;
    top: 15px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #00ffff;
    margin: 4px 0;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link {
    color: #00ffff;
    font-size: 1.1rem;
    margin: 0 10px;
    transition: color 0.3s, text-shadow 0.3s;
}

.navbar-nav .nav-link:hover {
    color: #ffffff;
    text-shadow: 0 0 10px #00ffff;
    animation: glow 1.5s ease-in-out infinite alternate;
}

@keyframes glow {
    from { text-shadow: 0 0 10px #00ffff; }
    to { text-shadow: 0 0 20px #00ffff, 0 0 30px #00ffff; }
}

/* Hero Section with Parallax */
.hero-section {
    height: 100vh;
    background: url('https://images.unsplash.com/photo-1518709268805-4e9042af9f23?q=80&w=1920&auto=format&fit=crop') no-repeat center center;
    background-attachment: fixed;
    background-size: cover;
    position: relative;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
}

.hero-text {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    color: #00ffff;
    text-shadow: 0 0 20px #00ffff, 0 0 40px #00ffff;
    z-index: 1;
    position: relative;
}

/* About Section with 3D Cards */
.about-section {
    background: linear-gradient(45deg, #1a1a1a, #0d0d0d);
    padding: 60px 0;
}

.about-section h2, .gallery-section h2, .connect-section h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    color: #00ffff;
    text-shadow: 0 0 10px #00ffff;
}

.card-3d {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid #00ffff;
    border-radius: 10px;
    padding: 20px;
    transition: transform 0.4s ease;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
    perspective: 1000px;
}

.card-3d:hover {
    transform: rotateY(10deg) rotateX(10deg) scale(1.05);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.5);
    animation: glow 1.5s ease-in-out infinite alternate;
}

.card-3d h3 {
    color: #00ffff;
}

.card-3d p {
    font-size: 1rem;
}

/* Gallery Section with 3D Flip */
.gallery-section {
    background: #0d0d0d;
    padding: 60px 0;
}

.gallery-card {
    perspective: 1000px;
}

.gallery-img {
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
    transition: transform 0.5s ease;
    width: 100%;
    height: auto;
}

.gallery-card:hover .gallery-img {
    transform: rotateY(180deg);
}

/* Connect Section */
.connect-section {
    background: linear-gradient(45deg, #0d0d0d, #1a1a1a);
    padding: 60px 0;
}

.social-btn {
    background: transparent;
    border: 2px solid #00ffff;
    color: #00ffff;
    margin: 10px;
    padding: 12px;
    border-radius: 50%;
    transition: all 0.3s;
    width: 60px;
    height: 60px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.social-btn:hover {
    background: #00ffff;
    color: #000;
    box-shadow: 0 0 15px #00ffff;
    animation: glow 1.5s ease-in-out infinite alternate;
}

/* Footer */
.footer {
    background: #000;
    color: #00ffff;
    padding: 20px 0;
}

.footer p {
    margin: 0;
    font-size: clamp(0.9rem, 2vw, 1rem);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .navbar-nav .nav-link {
        font-size: 1rem;
        margin: 0 8px;
    }

    .hero-text {
        font-size: clamp(2rem, 4vw, 3.5rem);
    }
}

@media (max-width: 991px) {
    .hamburger {
        display: flex;
    }

    .navbar-collapse {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.9);
        padding: 20px;
    }

    .navbar-collapse.show {
        display: block;
    }

    .navbar-nav {
        flex-direction: column;
        text-align: center;
    }

    .navbar-nav .nav-link {
        margin: 10px 0;
    }
}

@media (max-width: 767px) {
    .hero-section {
        background-attachment: scroll; /* Disable parallax on small screens */
    }

    .hero-text {
        font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    }

    .card-3d {
        padding: 15px;
    }

    .card-3d h3 {
        font-size: 1.5rem;
    }

    .card-3d p {
        font-size: 0.9rem;
    }

    .social-btn {
        width: 50px;
        height: 50px;
        padding: 10px;
    }

    .gallery-card:hover .gallery-img {
        transform: none; /* Disable 3D flip on small screens */
    }
}

@media (max-width: 576px) {
    .hero-section {
        height: 80vh;
    }

    .hero-text {
        font-size: clamp(1.5rem, 3vw, 2rem);
    }

    .about-section, .gallery-section, .connect-section {
        padding: 40px 0;
    }

    .social-btn {
        width: 45px;
        height: 45px;
        margin: 8px;
    }

    .gallery-img {
        margin-bottom: 20px;
    }
}