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

html {
    font-size: 18px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.7;
    color: #000;
    background-color: #fff;
    max-width: 750px;
    margin: 0 auto;
    padding: 48px 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: normal;
    line-height: 1.2;
    margin: 0;
}

.name {
    font-size: 2.75rem;
    font-weight: bold;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.role {
    font-size: 1rem;
    margin-bottom: 4px;
    color: #000;
}

.location {
    font-size: 1rem;
    color: #666;
}

.section-heading {
    font-size: 1.625rem;
    font-weight: 500;
    margin-bottom: 24px;
}

/* Links */
a {
    color: #000;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

a:hover {
    border-bottom-color: #000;
}

a:focus {
    outline: 2px solid #000;
    outline-offset: 2px;
}

.external-link,
.email-link {
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}

.external-link:hover,
.email-link:hover {
    border-bottom-color: #000;
}

/* Header */
.site-header {
    margin-bottom: 96px;
}

/* Main Content Sections */
.main-content > section {
    margin-bottom: 96px;
}

.intro {
    margin-bottom: 96px;
}

.intro-lead {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

/* Bio Toggle (CSS-only expand/collapse) */
.bio-toggle-wrapper {
    margin-top: 24px;
}

.bio-toggle-checkbox {
    display: none;
}

.bio-toggle-label {
    display: inline-block;
    cursor: pointer;
    color: #000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.bio-toggle-label:hover {
    border-bottom-color: #000;
}

.bio-toggle-label::after {
    content: " →";
}

.bio-toggle-checkbox:checked ~ .bio-toggle-label::after {
    content: " ↓";
}

.bio-full {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.5s ease, opacity 0.4s ease, margin-top 0.4s ease;
    margin-top: 0;
}

.bio-toggle-checkbox:checked ~ .bio-full {
    max-height: 2500px;
    opacity: 1;
    margin-top: 32px;
}

.bio-full p {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.bio-full p:last-child {
    margin-bottom: 0;
}

/* CASCA Archive Section */
.casca-archive {
    margin-bottom: 96px;
}

.casca-archive p {
    font-size: 1rem;
    line-height: 1.7;
}

/* Awards & Recognition Section */
.awards-recognition {
    margin-bottom: 96px;
}

.awards-recognition-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.awards-recognition-column p {
    font-size: 1rem;
    line-height: 1.7;
}

.awards-recognition-column strong {
    font-weight: 500;
    display: block;
    margin-bottom: 8px;
}

/* Contact Section */
.contact {
    margin-bottom: 96px;
}

.contact p {
    font-size: 1rem;
    line-height: 1.7;
}

/* Footer */
.site-footer {
    margin-top: 120px;
    padding-top: 48px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.site-footer p {
    font-size: 0.875rem;
    color: #666;
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 32px 20px;
    }

    .name {
        font-size: 2.25rem;
    }

    .section-heading {
        font-size: 1.5rem;
    }

    .site-header {
        margin-bottom: 72px;
    }

    .main-content > section {
        margin-bottom: 72px;
    }

    .awards-recognition-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .site-footer {
        margin-top: 96px;
        padding-top: 32px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 17px;
    }

    body {
        padding: 24px 16px;
    }

    .name {
        font-size: 2rem;
    }

    .site-header {
        margin-bottom: 64px;
    }

    .main-content > section {
        margin-bottom: 64px;
    }
}

/* Print Styles */
@media print {
    body {
        padding: 0;
        max-width: 100%;
    }

    .site-header {
        margin-bottom: 48px;
    }

    .main-content > section {
        margin-bottom: 48px;
        page-break-inside: avoid;
    }

    .bio-toggle-checkbox:not(:checked) ~ .bio-full {
        display: none;
    }

    .bio-toggle-label {
        display: none;
    }

    .bio-toggle-checkbox:checked ~ .bio-full {
        max-height: none;
        opacity: 1;
        margin-top: 24px;
    }

    .site-footer {
        margin-top: 48px;
        padding-top: 24px;
    }

    a {
        border-bottom: 1px solid rgba(0, 0, 0, 0.3);
    }

    a[href^="http"]::after {
        content: " (" attr(href) ")";
        font-size: 0.85em;
        color: #666;
    }

    a[href^="mailto"]::after {
        content: " (" attr(href) ")";
        font-size: 0.85em;
        color: #666;
    }
}