:root {
    --primary-blue: #0F172A;
    --accent-purple: #7C3AED;
    --light-bg: #E0F2FE;
    --white: #FFFFFF;
    --gray-light: #F1F5F9;
    --gray-medium: #94A3B8;
    --success-green: #A7F3D0;
    --text-dark: #1E293B;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--primary-blue);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--accent-purple);
}

.cta-button {
    background-color: var(--accent-purple);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
    transition: all 0.3s;
}

.cta-button:hover {
    background-color: #6D28D9;
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    color: var(--white);
    padding: 6rem 2rem;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.subtitle {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
    color: var(--gray-medium);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.primary-button {
    background-color: var(--accent-purple);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.secondary-button {
    background-color: transparent;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid white;
    transition: all 0.3s;
}

.primary-button:hover,
.secondary-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.secondary-button:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.stats-container {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 4rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-purple);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--gray-medium);
}

/* Services Section */
.services {
    padding: 5rem 2rem;
    background-color: var(--gray-light);
}

.services h2,
.projects h2,
.about h2,
.contact h2 {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 3rem;
    color: var(--primary-blue);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--accent-purple);
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* Projects Section */
.projects {
    padding: 5rem 2rem;
    background-color: var(--white);
}

.filter-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-button {
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    border: 1px solid var(--gray-medium);
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-button:hover,
.filter-button.active {
    background-color: var(--accent-purple);
    color: white;
    border-color: var(--accent-purple);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
    overflow: hidden;
    border: 1px solid var(--gray-light);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid var(--gray-light);
}

.project-info {
    padding: 1.5rem;
}

.project-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.project-description {
    color: var(--gray-medium);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.tech-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.tag {
    background-color: var(--light-bg);
    color: var(--primary-blue);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.github-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--primary-blue);
    font-weight: 600;
    transition: color 0.3s;
}

.github-link:hover {
    color: var(--accent-purple);
}

/* About Section */
.about {
    padding: 5rem 2rem;
    background-color: var(--gray-light);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* Contact Section */
.contact {
    padding: 5rem 2rem;
    background-color: var(--white);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-form {
    background-color: var(--gray-light);
    padding: 2rem;
    border-radius: 12px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid var(--gray-medium);
    border-radius: 6px;
    font-family: 'Inter', sans-serif;
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-info h3 {
    font-size: 1.5rem;
    color: var(--primary-blue);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: var(--primary-blue);
    font-size: 1.5rem;
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--accent-purple);
}

/* Footer */
footer {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 3rem 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--gray-medium);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--white);
}

.copyright {
    color: var(--gray-medium);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.25rem;
    }

    .stats-container {
        flex-direction: column;
        gap: 1.5rem;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
        /* In a real site, you'd add a mobile menu here */
    }
}

.contact-container {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.contact-message {
    flex: 1;
    min-width: 300px;
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
}