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

body {
    font-family: 'Inter', sans-serif;
    font-size: 1.1rem;
    line-height: 1.6;
    color: #000;
    background: #fff;
    padding: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.container {
    max-width: 100%;
}

/* Header Section */
.header {
    margin-bottom: 2rem;
    padding-bottom: 0rem;
}

.profile-section {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.profile-picture {
    width: 180px;
    height: 180px;
    object-fit: cover;
    flex-shrink: 0;
}

.profile-text {
    flex: 1;
}

.name {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #000;
}

.description {
    font-size: 1rem;
    color: #000;
    line-height: 1.6;
}

/* Links Section */
.links-section {
    margin: 0 0 1rem;
    padding: 0.25rem 0 0.5rem;
    border-top: 1px solid #000;
    border-bottom: 1px solid #000;
}

.timeline-section {
    position: relative;
    margin-bottom: 3rem;
    padding-top: 1.75rem;
}

.timeline-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: #000;
}

.links-section h2,
.timeline-section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #000;
    text-transform: uppercase;
}

.links-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.link-card {
    position: relative;
    display: inline-flex;
    align-items: center;
    color: #000;
    text-decoration: none;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
}

.link-card::after {
    content: '|';
    position: absolute;
    right: -0.4rem;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
}

.link-card:last-of-type::after {
    display: none;
}

.link-card:hover {
    text-decoration: underline;
}

.link-icon {
    display: none;
}

.link-text {
    font-weight: 600;
    font-size: 1rem;
}

.projects-cta {
    margin: 2rem 0 2.5rem;
    text-align: center;
}

.projects-cta__link {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    padding: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.projects-cta__link:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.projects-cta__gif {
    width: min(100%, 480px);
    border-radius: 8px;
}

.projects-cta__text {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: #000;
}

/* Timeline Section */
.timeline {
    position: relative;
    --timeline-padding-left: 2.5rem;
    --timeline-line-center: 0.5rem;
    --timeline-line-width: 2px;
    padding-left: var(--timeline-padding-left);
}

.timeline::before {
    content: '';
    position: absolute;
    left: calc(var(--timeline-line-center) - var(--timeline-line-width) / 2);
    top: 0;
    bottom: 0;
    width: var(--timeline-line-width);
    background: #666;
    display: block;
    z-index: 0;
    border-radius: 999px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
}

.timeline-item {
    position: relative;
    margin-bottom: 1.5rem;
    padding-left: 0;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item:last-child::after {
    display: none;
}

.timeline-marker {
    position: absolute;
    left: calc(var(--timeline-line-center) - var(--timeline-padding-left));
    top: 0.35rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #666;
    border: 2px solid #fff;
    box-sizing: border-box;
    display: block;
    z-index: 1;
    transform: translateX(-50%);
}

.timeline-content {
    background: transparent;
    padding: 0;
    border: none;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.timeline-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    flex-shrink: 0;
}

.timeline-details {
    flex: 1;
}

.timeline-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: #000;
}

.timeline-date {
    font-size: 0.95rem;
    color: #000;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.timeline-description {
    color: #000;
    line-height: 1.6;
    font-size: 0.95rem;
}

.timeline-description a {
    color: #000;
    text-decoration: underline;
}

.timeline-description a:hover {
    text-decoration: none;
}

/* Responsive Design */
@media (max-width: 640px) {
    body {
        padding: 1rem;
    }

    .header {
        margin-bottom: 2rem;
        padding-bottom: 1rem;
    }

    .profile-section {
        flex-direction: column;
        gap: 1rem;
    }

    .profile-picture {
        width: 140px;
        height: 140px;
    }

    .name {
        font-size: 1.75rem;
    }

    .description {
        font-size: 0.95rem;
    }

    .links-section,
    .timeline-section {
        margin-bottom: 2rem;
    }

    .links-grid {
        justify-content: flex-start;
    }

    .links-section h2,
    .timeline-section h2 {
        font-size: 1.1rem;
        margin-bottom: 0.75rem;
    }

    .link-text {
        font-size: 0.95rem;
    }

    .timeline-title {
        font-size: 1rem;
    }

    .timeline-date {
        font-size: 0.9rem;
    }

    .timeline-description {
        font-size: 0.9rem;
    }

    .timeline {
        --timeline-padding-left: 2rem;
        --timeline-line-center: 0.25rem;
    }

    .timeline-marker {
        width: 10px;
        height: 10px;
        transform: translateX(-50%);
    }

    .timeline-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .timeline-logo {
        width: 50px;
        height: 50px;
    }
}

/* Focus states for accessibility */
a:focus-visible {
    outline: 1px solid #000;
    outline-offset: 2px;
}
.languages-section {
    margin: 1.25rem 0;
    padding: 1rem 0;
}

.languages-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.75rem 1.5rem;
}

.language-item {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid #e1e1e1;
    font-size: 0.95rem;
    color: #000;
}

.language-name {
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.language-level {
    color: #333;
}

.language-level a {
    color: inherit;
    text-decoration: underline;
}

.language-level a:hover {
    text-decoration: none;
}

/* Courses / Projects pages */
.courses-section {
    display: grid;
    gap: 2rem;
    padding-top: 1.25rem;
}

.projects-section {
    display: grid;
    gap: 2rem;
    padding-top: 1.25rem;
}

.project-list {
    display: grid;
    gap: 1.75rem;
}

.course-group h2 {
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.course-group ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.course-cert {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 0.75rem 0;
}

.course-cert__icon {
    width: 140px;
    height: 140px;
    flex-shrink: 0;
    border-radius: 12px;
    border: 1px solid #e0e0e0;
    padding: 0;
    background: #fff;
    object-fit: cover;
    display: block;
}

.course-cert__icon--contain {
    padding: 0.35rem;
    object-fit: contain;
}

.course-cert__details {
    flex: 1;
}

.course-cert__title {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 0.35rem;
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.course-cert__title span {
    color: #7a7a7a;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
}

.course-cert__title a {
    color: #000;
    text-decoration: none;
}

.course-cert__title a:hover {
    text-decoration: underline;
}

.course-cert__summary {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.5;
    color: #222;
}

.course-group li {
    font-size: 0.95rem;
    line-height: 1.5;
}

.project-card {
    padding-bottom: 1.25rem;
    border-bottom: 1px solid #ddd;
    display: flex;
    gap: 1rem;
}

.section-title {
    font-size: 1.15rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 1rem;
}

.projects-section a {
    color: #000;
    text-decoration: none;
}

.projects-section a:hover {
    text-decoration: underline;
}

.project-card--with-thumb {
    align-items: center;
}

.project-card figure {
    margin: 0;
}

.project-card img {
    width: 160px;
    height: auto;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    background: #fff;
    padding: 0.5rem;
}

.project-card--cover img {
    height: 120px;
    padding: 0;
    object-fit: cover;
    object-position: center;
    background: #fdfdfd;
}

.project-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.project-header {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.project-heading-group {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.project-header h2 {
    font-size: 1.15rem;
    text-transform: none;
}

.project-meta {
    font-size: 0.85rem;
    color: #555;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.project-card p {
    font-size: 0.95rem;
    line-height: 1.6;
}

.project-card__heading {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.project-case-study {
    margin-top: 3rem;
    padding-top: 2rem;
}

.project-case-study__header {
    margin-bottom: 1.5rem;
}

.project-tag {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #555;
    margin-bottom: 0.25rem;
}

.project-case-study__header h2 {
    font-size: 1.35rem;
    margin-bottom: 0.5rem;
}

.project-authors {
    font-size: 0.95rem;
    color: #333;
}

.project-case-study__body h3 {
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 1.5rem 0 0.5rem;
}

.project-case-study__body p {
    font-size: 0.98rem;
    line-height: 1.7;
    margin-bottom: 0.75rem;
}

.project-case-study__body ul,
.project-case-study__body ol,
.project-toc ol {
    margin: 0 0 1rem;
    padding-left: 1.25rem;
    list-style-position: inside;
}

.project-case-study__body li,
.project-toc li {
    margin-bottom: 0.4rem;
    line-height: 1.6;
}

.project-toc {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 1rem;
    background: #fafafa;
    margin: 1.25rem 0;
}

.project-toc h3 {
    margin-top: 0;
    font-size: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.project-case-study__body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.project-case-study__body th,
.project-case-study__body td {
    border: 1px solid #e0e0e0;
    padding: 0.6rem;
    text-align: left;
    font-size: 0.95rem;
}

.project-case-study__body thead {
    background: #f5f5f5;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-case-study__body pre {
    margin: 1rem 0;
    padding: 0.85rem 1rem;
    background: #111;
    color: #f2f2f2;
    border-radius: 6px;
    overflow-x: auto;
    font-size: 0.95rem;
    line-height: 1.5;
}

.project-case-study__hero {
    margin: 1.5rem 0 2rem;
    padding: 1rem;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    background: #fdfdfd;
}

.project-case-study__hero img {
    width: 100%;
    display: block;
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.project-case-study__hero--menu img {
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.project-case-study__hero figcaption {
    font-size: 0.9rem;
    color: #444;
}

.project-case-study__gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.project-case-study__gallery figure {
    margin: 0;
    padding: 0.75rem;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    background: #fafafa;
}

.project-case-study__gallery img {
    width: 100%;
    display: block;
    border-radius: 6px;
}

.project-case-study__gallery figcaption {
    font-size: 0.85rem;
    color: #555;
    margin-top: 0.5rem;
}

.project-case-study__gallery--flashcards {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.project-case-study__gallery--flashcards figure {
    padding: 1rem;
}

.project-case-study__gallery--flashcards img {
    border-radius: 10px;
}

.project-references {
    list-style: disc;
    margin-left: 1.25rem;
    padding-left: 0.75rem;
    font-size: 0.95rem;
}

.project-references a {
    color: inherit;
    text-decoration: underline;
}

.project-appendix {
    margin-top: 1rem;
    font-size: 0.9rem;
}

.project-appendix summary {
    cursor: pointer;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.project-appendix pre {
    margin-top: 0.75rem;
    padding: 1rem;
    background: #f5f5f5;
    border: 1px solid #e1e1e1;
    overflow-x: auto;
    font-size: 0.85rem;
    line-height: 1.4;
}

.project-media {
    margin-top: 2rem;
    display: grid;
    gap: 1.5rem;
}

.project-media figure {
    margin: 0;
}

.project-media figcaption {
    font-size: 0.85rem;
    color: #555;
    margin-top: 0.4rem;
}

.project-media img,
.project-media video {
    width: 100%;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    background: #fdfdfd;
}

.project-media--intro img {
    width: 100%;
}

.project-media--intro {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    align-items: center;
    text-align: center;
}

@media (max-width: 640px) {
    .courses-section,
    .projects-section {
        gap: 1.5rem;
    }

    .project-header h2 {
        font-size: 1.05rem;
    }

    .project-case-study__body h3 {
        margin-top: 1.25rem;
    }

    .project-card {
        flex-direction: column;
    }

    .project-card img {
        width: 100%;
        padding: 0.5rem;
    }

    .project-card--with-thumb {
        align-items: flex-start;
    }

    .project-card--cover img {
        width: 100%;
        height: auto;
        padding: 0;
    }

    .project-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .project-heading-group {
        width: 100%;
    }
}