 {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #0f0f0f;
    color: #ffffff;
    line-height: 1.6;
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(15, 15, 15, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #222;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Orbitron', system-ui, Arial, sans-serif;
    font-size: 2.0rem;
    font-weight: bold;
    color: #3b82f6;
}

.logo img,
.logo svg {
  height: 1em;   /* match text height */
  width: auto;   /* keep aspect ratio */
  vertical-align: middle;
}

nav {
    display: flex;
    gap: 2rem;
}

nav a {
    color: #888;
    text-decoration: none;
    transition: color 0.3s;
    cursor: pointer;
}

nav a:hover,
nav a.active {
    color: #fff;
}

/* Sections */
section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5rem 2rem;
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

/* Home Section */
#home {
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%);
}

.hero {
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.5rem;
    color: #888;
    margin-bottom: 3rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.feature {
    background: #1a1a1a;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    border: 1px solid #222;
    transition: transform 0.3s, border-color 0.3s;
}

.feature:hover {
    transform: translateY(-5px);
    border-color: #3b82f6;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature h3 {
    margin-bottom: 0.5rem;
    color: #3b82f6;
}

.feature p {
    color: #888;
}

.about {
    background: #1a1a1a;
    padding: 3rem;
    border-radius: 10px;
    margin-top: 4rem;
    border: 1px solid #222;
}

.about h2 {
    margin-bottom: 1.5rem;
    color: #3b82f6;
}

.about p {
    color: #ccc;
    margin-bottom: 1rem;
}

.about p:last-child {
    margin-bottom: 0;
}

/* Portfolio Section */
#portfolio {
    background: #1a1a1a;
}

.portfolio-content {
    text-align: center;
}

.portfolio-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #3b82f6;
}

.section-subtitle {
    color: #888;
    font-size: 1.2rem;
}

.coming-soon {
    background: #0f0f0f;
    padding: 4rem;
    border-radius: 10px;
    margin-top: 2rem;
    border: 1px solid #222;
}

.coming-soon-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.coming-soon h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.coming-soon p {
    color: #888;
    margin-bottom: 2rem;
}

/* Contact Section */
#contact {
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%);
}

.contact-content h2 {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #3b82f6;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.contact-card {
    background: #1a1a1a;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    border: 1px solid #222;
}

.contact-card h3 {
    margin-bottom: 1rem;
    color: #3b82f6;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.contact-main {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: #888;
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: #3b82f6;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background: #2563eb;
}

.btn-secondary {
    background: #8b5cf6;
}

.btn-secondary:hover {
    background: #7c3aed;
}

.office {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background: #1a1a1a;
    border-radius: 10px;
    border: 1px solid #222;
}

.office h3 {
    margin-bottom: 1rem;
    color: #3b82f6;
}

.office p {
    color: #888;
}

/* Footer */
footer {
    background: #0f0f0f;
    text-align: center;
    padding: 2rem;
    border-top: 1px solid #222;
}

footer p {
    color: #888;
}

footer p:first-child {
    margin-bottom: 0.5rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.2rem;
    }

    nav {
        gap: 1rem;
    }

    section {
        padding: 4rem 1rem;
    }

    .portfolio-content h2,
    .contact-content h2 {
        font-size: 2.5rem;
    }

    .header-container {
        padding: 1rem;
    }

    .about {
        padding: 2rem;
    }

    .coming-soon {
        padding: 3rem 2rem;
    }

    .contact-cards {
        grid-template-columns: 1fr;
    }
}
3. script.js
// Navigation functionality
function initNavigation() {
    const navLinks = document.querySelectorAll('.nav-link');
    const sections = document.querySelectorAll('section');

    // Update active navigation link based on scroll position
    function updateActiveNav() {
        const scrollPos = window.scrollY + 100;
        
        sections.forEach((section, index) => {
            const top = section.offsetTop;
            const bottom = top + section.offsetHeight;
            
            if (scrollPos >= top && scrollPos < bottom) {
                navLinks.forEach(link => link.classList.remove('active'));
                if (navLinks[index]) {
                    navLinks[index].classList.add('active');
                }
            }
        });
    }

    // Smooth scroll to section when nav link is clicked
    navLinks.forEach(link => {
        link.addEventListener('click', function(e) {
            e.preventDefault();
            const targetId = this.getAttribute('href');
            const targetSection = document.querySelector(targetId);
            
            if (targetSection) {
                const offsetTop = targetSection.offsetTop - 64;
                window.scrollTo({
                    top: offsetTop,
                    behavior: 'smooth'
                });
            }
        });
    });

    // Update active nav on scroll
    window.addEventListener('scroll', updateActiveNav);
}

// Contact button functions
function makeCall() {
    window.location.href = 'tel:+15551234567';
}

function sendEmail() {
    window.location.href = 'mailto:hello@mobiledevpro.com';
}

// Fade in animation on scroll
function initScrollAnimations() {
    const elementsToAnimate = document.querySelectorAll('.feature, .contact-card, .about, .coming-soon');
    
    // Add fade-in class to elements
    elementsToAnimate.forEach(el => {
        el.classList.add('fade-in');
    });

    // Check if element is in viewport
    function isInViewport(element) {
        const rect = element.getBoundingClientRect();
        return (
            rect.top >= 0 &&
            rect.left >= 0 &&
            rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) &&
            rect.right <= (window.innerWidth || document.documentElement.clientWidth)
        );
    }

    // Add visible class when element enters viewport
    function checkVisibility() {
        elementsToAnimate.forEach(el => {
            if (isInViewport(el)) {
                el.classList.add('visible');
            }
        });
    }

    // Check visibility on scroll and load
    window.addEventListener('scroll', checkVisibility);
    window.addEventListener('load', checkVisibility);
}

// Initialize everything when DOM is loaded
document.addEventListener('DOMContentLoaded', function() {
    initNavigation();
    initScrollAnimations();
});

// Handle window resize for responsive behavior
let resizeTimer;
window.addEventListener('resize', function() {
    clearTimeout(resizeTimer);
    resizeTimer = setTimeout(function() {
        // Re-check animations after resize
        const event = new Event('scroll');
        window.dispatchEvent(event);
    }, 250);
});