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

:root {
    --primary-color: #13AEB7;
    --secondary-color: #1F2937;
    --gray-color: #A3A5A8;
    --text-color: #374151;
    --light-gray: #F3F4F6;
    --border-color: #E5E7EB;
    --success-color: #10B981;
    --error-color: #EF4444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #FFFFFF;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: #FFFFFF;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo {
    height: 70px;
    width: auto;
}

.hero {
    padding: 4rem 0 3rem;
    background: linear-gradient(to bottom, var(--light-gray), #FFFFFF);
}

.hero h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 700;
}

.description {
    font-size: 1.125rem;
    color: var(--text-color);
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
    line-height: 1.8;
}

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

.service-card {
    background: #FFFFFF;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

.service-icon {
    width: 48px;
    height: 48px;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.service-card p {
    color: var(--text-color);
    line-height: 1.6;
}

.contact {
    padding: 4rem 0;
    background: #FFFFFF;
}

.contact h2 {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    text-align: center;
    font-weight: 700;
}

.contact-intro {
    text-align: center;
    color: var(--text-color);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

.email-container {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 3rem 2rem;
    background: var(--light-gray);
    border-radius: 12px;
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
}

.email-label {
    font-size: 1rem;
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.email-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-family: 'Courier New', monospace;
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    margin-bottom: 1rem;
    user-select: none;
}

.email-part-img {
    flex-shrink: 0;
}

.separator {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 0.5rem;
}

.email-note {
    font-size: 0.875rem;
    color: var(--gray-color);
    font-style: italic;
}

footer {
    background: var(--secondary-color);
    color: #FFFFFF;
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-content p {
    color: #9CA3AF;
    font-size: 0.875rem;
}

.github-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #FFFFFF;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.875rem;
}

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

.github-icon {
    width: 20px;
    height: 20px;
}

@media (max-width: 768px) {
    .hero h2 {
        font-size: 2rem;
    }
    
    .services {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .email-container {
        padding: 1.5rem;
    }
    
    .footer-content {
        justify-content: center;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero h2 {
        font-size: 1.75rem;
    }
    
    .logo {
        height: 40px;
    }
    
    .contact h2 {
        font-size: 1.75rem;
    }
    
    .email-display {
        font-size: 1.25rem;
        padding: 1rem;
    }
}