:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --text-color: #333;
    --light-gray: #f5f6fa;
    --white: #ffffff;
    --max-width: 1200px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    font-weight: 300;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header Styles */
.site-header {
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -0.5px;
}

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

.nav-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 400;
    transition: color 0.3s ease;
    letter-spacing: 0.5px;
}

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

/* Main Content */
.site-content {
    padding: 2rem 0;
}

/* Footer */
.site-footer {
    background-color: var(--white);
    color: var(--primary-color);
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

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

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

/* Mobile Navigation - Hidden by default */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle:hover {
    color: var(--secondary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-nav {
        position: relative;
    }
    
    .mobile-menu-toggle {
        display: block !important;
    }
    
    .nav-links {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        position: absolute;
        top: 100%;
        right: 0;
        background: var(--white);
        border: 1px solid var(--light-gray);
        border-radius: 8px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        min-width: 200px;
        z-index: 1000;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        margin: 0;
        padding: 0;
    }
    
    .nav-links.active {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .nav-links li {
        border-bottom: 1px solid var(--light-gray);
        margin: 0;
        padding: 0;
    }
    
    .nav-links li:last-child {
        border-bottom: none;
    }
    
    .nav-links a {
        display: block;
        padding: 1rem 1.5rem;
        color: var(--primary-color);
        text-decoration: none;
        transition: background-color 0.3s ease;
        margin: 0;
    }
    
    .nav-links a:hover {
        background-color: var(--light-gray);
        color: var(--secondary-color);
    }
    
    .site-content {
        padding: 1rem 0;
    }
    
    .site-footer {
        padding: 1.5rem 0;
    }
    
    .footer-content {
        gap: 0.5rem;
    }
    
    .social-links {
        gap: 1rem;
    }
    
    .social-links a {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .main-nav {
        padding: 0.5rem 0;
    }
    
    .logo {
        font-size: 1.3rem;
    }
    
    .nav-links a {
        font-size: 0.9rem;
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 300;
    letter-spacing: -0.5px;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

p {
    margin-bottom: 1.5rem;
    font-weight: 300;
    letter-spacing: 0.3px;
}

/* Links */
a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-color);
}

/* Section Styles */
.intro {
    text-align: right;
    max-width: 800px;
    margin-left: auto;
    margin-right: 0;
}