/* Base styles */
body {
    font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    -webkit-font-smoothing: antialiased;
    background-color: #fff;
    color: #111827;
    padding-top: 77px; /* To offset the fixed header */
}

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Typography */
h1 {
    font-size: 2.25rem; /* 36px */
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 1rem;
    text-align: center;
}

h2 {
    font-size: 1.875rem; /* 30px */
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    padding-bottom: 0.5rem;
    display: flex;
    align-items: center;
}

h2 svg {
    width: 24px;
    height: 24px;
    margin-right: 0.75rem;
    color: #6c757d;
}

h3 {
    font-size: 1.5rem; /* 24px */
    font-weight: 600;
    margin-bottom: 1rem;
}

h4 {
    font-size: 1.25rem; /* 20px */
    font-weight: 600;
    margin-bottom: 1rem;
}

h5 {
    font-size: 1.125rem; /* 18px */
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

p {
    font-size: 1rem; /* 16px */
    line-height: 1.75;
    color: #374151;
    margin-bottom: 1.5rem;
}

ul {
    list-style-position: outside;
    list-style-type: disc;
    padding-left: 1.5rem;
    font-size: 1rem;
    line-height: 1.75;
    color: #374151;
}

li {
    margin-bottom: 0.75rem;
}

a, .highlight-link {
    color: #007bff;
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
    text-decoration-color: rgba(0, 123, 255, 0.3);
    transition: all 0.2s ease-in-out;
}

a:hover, .highlight-link:hover {
    color: #0056b3;
    text-decoration-color: rgba(0, 86, 179, 0.5);
}

.social-links a {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    margin-right: 1.5rem;
    font-size: 1.125rem;
}

.social-links a:hover {
    text-decoration: none;
}

.social-links svg {
    width: 20px;
    height: 20px;
    margin-right: 0.5rem;
    color: #6c757d;
}

/* Profile Image */
.profile-image {
    width: 315px;
    border-radius: 1rem; /* 16px */
    object-fit: contain;
    margin: 0 auto 1.5rem;
    display: block;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Card styles */
.card {
    background-color: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 0.75rem; /* 12px */
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card h3, .card h4 {
    margin-top: 0;
}

.social-links a {
    display: inline-block;
    margin-right: 1rem;
    font-size: 1rem;
}

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

.summary {
    font-size: 1.125rem;
    color: #4b5563;
    text-align: center;
    margin-bottom: 2.5rem;
}

.text-muted {
    color: #6c757d;
    opacity: 0.7;
}