:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f8f8;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --accent: #2563eb;
    --accent-dim: #1d4ed8;
    --border: #e5e5e5;
    --max-width: 900px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 12px 24px;
    text-decoration: none;
    z-index: 100;
    border-radius: 0 0 8px 8px;
    border: 1px solid var(--border);
    border-top: none;
    font-size: 0.9rem;
}

.skip-link:focus {
    top: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

header {
    padding: 60px 20px 40px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    background: var(--bg-primary);
}

.ascii-art {
    margin-bottom: 30px;
}

.ascii-art pre {
    font-family: 'Courier New', Courier, monospace;
    color: var(--text-primary);
    font-size: clamp(8px, 2vw, 14px);
    line-height: 1;
    display: inline-block;
    margin: 0 auto;
    letter-spacing: -1px;
    font-weight: bold;
    opacity: 0.9;
}

.subtitle {
    font-size: 1.8rem;
    font-weight: 300;
    margin-bottom: 10px;
    letter-spacing: -1px;
    color: var(--text-primary);
}

.profile-image {
    margin: 30px auto 20px;
    width: 150px;
    height: 150px;
}

.profile-image img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: block;
}

.profile-image img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
}

h1 {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 10px;
    letter-spacing: -1px;
}

.tagline {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

nav {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

nav a:hover {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 4px;
}

nav a.active {
    color: var(--accent);
}

/* Accessible focus states */
a:focus-visible,
button:focus-visible,
[role="button"]:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    text-decoration: underline;
    text-underline-offset: 4px;
}

main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 20px;
}

section {
    padding: 60px 0;
    border-bottom: 1px solid var(--border);
}

section:last-of-type {
    border-bottom: none;
}

h2 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--text-primary);
    font-weight: 600;
}

h3 {
    font-size: 1.3rem;
    margin: 30px 0 15px;
    font-weight: 500;
}

h4 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 5px;
}

p {
    margin-bottom: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.focus-areas {
    margin-top: 40px;
}

.focus-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 20px;
}

.focus-item {
    padding: 25px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.focus-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.focus-item .icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 15px;
}

.focus-item h4 {
    color: var(--text-primary);
    margin-bottom: 10px;
}

.focus-item p {
    font-size: 0.95rem;
}

.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -34px;
    top: 5px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-primary);
    border: 2px solid var(--bg-primary);
}

.timeline-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
    font-weight: 500;
}

.timeline-content h3 {
    margin: 0 0 5px;
    color: var(--text-primary);
}

.timeline-content h4 {
    color: var(--text-secondary);
    font-weight: 400;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.skill-category ul {
    list-style: none;
    margin-top: 15px;
}

.skill-category li {
    padding: 8px 0;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(51, 51, 51, 0.5);
    transition: color 0.3s ease, padding-left 0.3s ease;
}

.skill-category li:hover {
    color: var(--text-primary);
    padding-left: 10px;
}

.skill-category li:last-child {
    border-bottom: none;
}

.education {
    background: var(--bg-secondary);
    padding: 25px;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.1rem;
}

.contact-label {
    color: var(--text-secondary);
    min-width: 100px;
}

.contact-value {
    color: var(--text-primary);
}

.contact-item a {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: opacity 0.3s ease;
}

.contact-item a:hover {
    opacity: 0.7;
}

.email-button {
    background: none;
    border: none;
    font: inherit;
    text-align: left;
    padding: 0;
}

#email {
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    position: relative;
}

#email:focus {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
    border-radius: 4px;
}

#email.blurred .email-text {
    filter: blur(3px);
    color: var(--text-secondary);
    user-select: none;
}

#email.blurred .email-icon {
    filter: blur(0);
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
}

#email:hover .email-icon {
    text-decoration: underline;
    text-underline-offset: 2px;
}

#email.revealed .email-text {
    filter: blur(0);
}

#email.revealed .email-icon {
    color: var(--accent);
    font-size: 0.9rem;
}

#email.copied .email-icon {
    color: var(--text-secondary);
}

#email.copied::after {
    content: '✓';
    color: green;
    font-size: 1.2rem;
    position: absolute;
    right: -30px;
    animation: fadeIn 0.3s ease;
}

.loading {
    color: var(--text-secondary);
    font-style: italic;
}

.ascii-divider pre {
    font-family: 'Courier New', Courier, monospace;
    color: var(--border);
    font-size: 12px;
    text-align: center;
}

.imprint-intro {
    max-width: 650px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.imprint-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 50%;
    font-size: 1.25rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
    box-shadow: none;
}

.imprint-toggle:hover {
    background: var(--bg-secondary);
    border-color: var(--accent);
    color: var(--accent);
}

.imprint-toggle:active {
    transform: translateY(1px);
}

.imprint-toggle-icon {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.imprint-toggle[disabled],
.imprint-toggle.imprint-toggle-disabled {
    background: var(--bg-secondary);
    border-color: var(--border);
    color: var(--text-secondary);
    cursor: default;
    box-shadow: none;
    transform: none;
}

.imprint-toggle[disabled] .imprint-toggle-icon,
.imprint-toggle.imprint-toggle-disabled .imprint-toggle-icon {
    transform: none;
}

.imprint-content {
    margin-top: 32px;
    padding: 32px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: 0 20px 35px rgba(26, 26, 26, 0.08);
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.imprint-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
}

.imprint-card h3 {
    margin-top: 0;
    margin-bottom: 12px;
}

.imprint-card p {
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.imprint-details h3 {
    margin-bottom: 12px;
    margin-top: 0;
}

.imprint-details p {
    margin-bottom: 18px;
    color: var(--text-secondary);
}

.imprint-noscript {
    margin-top: 16px;
    color: var(--text-secondary);
    font-style: italic;
}

footer {
    text-align: center;
    padding: 40px 20px;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-note {
    margin-top: 10px;
    font-size: 0.85rem;
    opacity: 0.8;
}

.footer-links {
    margin-top: 16px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-decoration: underline;
    text-underline-offset: 3px;
    opacity: 0.8;
    transition: color 0.3s ease, opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent);
}

/* Noscript fallback note */
.noscript-note {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 16px 20px;
    color: var(--text-secondary);
}
.noscript-note a { color: var(--accent); }

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Fade-in animation classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ASCII art animation */
.ascii-animate {
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 1s ease, transform 1s ease;
}

.ascii-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .timeline {
        padding-left: 30px;
    }
    
    .timeline::before {
        left: 5px;
    }
    
    .timeline-item::before {
        left: -29px;
    }
    
    .focus-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }

    .contact-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }

    .imprint-content {
        padding: 24px;
    }

    .imprint-grid {
        grid-template-columns: 1fr;
    }
}

/* Simple link with icon for YouTube */
.link-with-icon {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}