/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    background-color: #121212;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 2px solid #333;
}

header h1 {
    font-size: 2.8rem;
    color: #ffffff;
    margin-bottom: 10px;
    font-weight: 300;
    letter-spacing: 1px;
}

.last-updated {
    color: #888;
    font-size: 0.9rem;
    font-style: italic;
}

/* Main Content */
main {
    flex: 1;
}

/* Sections */
section {
    margin-bottom: 40px;
    padding: 25px;
    background-color: #1e1e1e;
    border-radius: 8px;
    border-left: 4px solid #4a90e2;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

section.intro {
    background-color: #2a2a2a;
    border-left-color: #6c5ce7;
    text-align: center;
}

section.intro p {
    font-size: 1.1rem;
    color: #f0f0f0;
    font-weight: 300;
}

/* Headings */
h1 {
    color: #ffffff;
}

h2 {
    color: #ffffff;
    font-size: 1.8rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #333;
    font-weight: 400;
}

h3 {
    color: #f0f0f0;
    font-size: 1.3rem;
    margin: 25px 0 15px 0;
    font-weight: 500;
}

/* Paragraphs */
p {
    margin-bottom: 15px;
    color: #d0d0d0;
    font-size: 1rem;
    line-height: 1.7;
}

/* Lists */
ul {
    margin: 15px 0 20px 0;
    padding-left: 30px;
}

li {
    margin-bottom: 8px;
    color: #d0d0d0;
    line-height: 1.6;
}

li::marker {
    color: #4a90e2;
}

/* Contact Info */
.contact-info {
    background-color: #2a2a2a;
    padding: 20px;
    border-radius: 6px;
    margin-top: 20px;
    border: 1px solid #333;
}

.contact-info p {
    margin-bottom: 10px;
    color: #e0e0e0;
}

.contact-info strong {
    color: #4a90e2;
}

/* Footer */
footer {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #333;
    text-align: center;
    color: #888;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
    }
    
    header h1 {
        font-size: 2.2rem;
    }
    
    section {
        padding: 20px;
        margin-bottom: 30px;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.2rem;
    }
    
    ul {
        padding-left: 25px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    section {
        padding: 15px;
        border-radius: 6px;
    }
    
    h2 {
        font-size: 1.4rem;
    }
    
    p, li {
        font-size: 0.95rem;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection styling */
::selection {
    background-color: #4a90e2;
    color: #ffffff;
}

/* Link styling */
a {
    color: #4a90e2;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #6c5ce7;
    text-decoration: underline;
}

/* Focus styles for accessibility */
*:focus {
    outline: 2px solid #4a90e2;
    outline-offset: 2px;
}