/* Simple, minimal Karpathy-style CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 18px;
    line-height: 1.7;
    color: #333;
    background: #fff;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 60px 40px;
}

/* Header */
.header {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid #eee;
}

.profile-photo {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
}

.header-info h1 {
    font-size: 42px;
    font-weight: 600;
    margin-bottom: 8px;
}

.tagline {
    color: #666;
    font-size: 22px;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    color: #333;
    transition: color 0.2s;
}

.social-links a svg {
    width: 32px;
    height: 32px;
}

.social-links a:hover {
    color: #0066cc;
}

.github-chart {
    margin-top: 1rem;
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

/* Timeline */
.timeline {
    display: flex;
    flex-direction: column;
    gap: 35px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 40px;
    align-items: baseline;
}

.timeline-date {
    color: #888;
    font-size: 16px;
    text-align: right;
}

.timeline-content p {
    margin: 0;
    font-size: 18px;
}

.timeline-content strong {
    color: #000;
}

.timeline-content a {
    color: #0066cc;
    text-decoration: none;
}

.timeline-content a:hover {
    text-decoration: underline;
}

/* Tablet responsive */
@media (max-width: 768px) {
    body {
        font-size: 16px;
    }

    .container {
        padding: 40px 20px;
    }

    .header {
        gap: 30px;
        margin-bottom: 40px;
        padding-bottom: 30px;
    }

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

    .header-info h1 {
        font-size: 32px;
    }

    .tagline {
        font-size: 18px;
    }

    .social-links a svg {
        width: 28px;
        height: 28px;
    }

    .timeline-item {
        grid-template-columns: 120px 1fr;
        gap: 25px;
    }

    .timeline-date {
        font-size: 14px;
    }

    .timeline-content p {
        font-size: 16px;
    }
}

/* Large screens */
@media (min-width: 1200px) {
    .container {
        max-width: 1100px;
    }

    .header-info h1 {
        font-size: 48px;
    }

    .tagline {
        font-size: 24px;
    }

    .profile-photo {
        width: 200px;
        height: 200px;
    }

    .social-links a svg {
        width: 36px;
        height: 36px;
    }

    .timeline-item {
        grid-template-columns: 200px 1fr;
    }

    .timeline-content p {
        font-size: 20px;
    }
}

/* Extra large screens (1600px+) */
@media (min-width: 1600px) {
    body {
        font-size: 20px;
    }

    .container {
        max-width: 1300px;
        padding: 80px 60px;
    }

    .header {
        gap: 60px;
        margin-bottom: 80px;
        padding-bottom: 50px;
    }

    .header-info h1 {
        font-size: 56px;
    }

    .tagline {
        font-size: 26px;
    }

    .profile-photo {
        width: 220px;
        height: 220px;
    }

    .social-links {
        gap: 25px;
    }

    .social-links a svg {
        width: 40px;
        height: 40px;
    }

    .timeline {
        gap: 45px;
    }

    .timeline-item {
        grid-template-columns: 220px 1fr;
        gap: 50px;
    }

    .timeline-date {
        font-size: 18px;
    }

    .timeline-content p {
        font-size: 22px;
    }
}

/* Mobile responsive */
@media (max-width: 600px) {
    body {
        font-size: 16px;
    }

    .container {
        padding: 30px 20px;
    }

    .header {
        flex-direction: column;
        text-align: center;
        gap: 20px;
        margin-bottom: 30px;
        padding-bottom: 25px;
    }

    .profile-photo {
        width: 120px;
        height: 120px;
    }

    .header-info h1 {
        font-size: 28px;
    }

    .tagline {
        font-size: 16px;
    }

    .social-links {
        justify-content: center;
    }

    .social-links a svg {
        width: 26px;
        height: 26px;
    }

    .timeline {
        gap: 25px;
    }

    .timeline-item {
        grid-template-columns: 1fr;
        gap: 5px;
    }

    .timeline-date {
        text-align: left;
        font-weight: 600;
        font-size: 14px;
    }

    .timeline-content p {
        font-size: 16px;
    }
}