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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f9f9f9;
}

/* Fade in and slide up animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Apply animation to all text elements */
h1, h2, h3, p, span, li, a {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

/* Stagger animations with delays */
h1 { animation-delay: 0.1s; }
h2 { animation-delay: 0.15s; }
h3 { animation-delay: 0.2s; }
p { animation-delay: 0.25s; }
span { animation-delay: 0.3s; }
li { animation-delay: 0.35s; }
a { animation-delay: 0.4s; }

/* Navigation */
nav {
    background: #fff;
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

nav a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

nav a:hover {
    color: #0066cc;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 5rem 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-button {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: white;
    color: #667eea;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
    animation-delay: 0.5s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

/* About Section */
.about {
    padding: 5rem 1rem;
    background: white;
    margin: 2rem 0;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.about h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #667eea;
}

.about p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1rem;
}

/* Projects Section */
.projects {
    padding: 5rem 1rem;
}

.projects h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    color: #667eea;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.project-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

.project-card:nth-child(1) { animation-delay: 0.3s; }
.project-card:nth-child(2) { animation-delay: 0.4s; }
.project-card:nth-child(3) { animation-delay: 0.5s; }

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.project-card p {
    color: #666;
    margin-bottom: 1rem;
}

.project-tag {
    display: inline-block;
    background: #667eea;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 5rem 1rem;
    text-align: center;
    border-radius: 10px;
    margin-top: 3rem;
}

.contact h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: white;
}

.contact p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: rgba(255,255,255,0.95);
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.contact-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border: 2px solid white;
    border-radius: 5px;
    transition: all 0.3s;
}

.contact-links a:hover {
    background: white;
    color: #667eea;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    background: #333;
    color: white;
    margin-top: 3rem;
}

footer p {
    animation-delay: 0.6s;
}

/* Responsive */
@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .about h2,
    .projects h2,
    .contact h2 {
        font-size: 2rem;
    }

    .project-grid {
        grid-template-columns: 1fr;
    }
}