/* filepath: /home/schwollie/Desktop/studium/lars-website/css/main.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #f8fafc;
    --accent-color: #06b6d4;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --background: #ffffff;
    --surface: #f8fafc;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Dark theme */
[data-theme="dark"] {
    --primary-color: #3b82f6;
    --secondary-color: #1e293b;
    --accent-color: #06b6d4;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --background: #0f172a;
    --surface: #1e293b;
    --border: #334155;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .hero-section {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

[data-theme="dark"] .profile-image {
    border-color: rgba(255, 255, 255, 0.1);
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--background);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background: var(--background);
    color: var(--text-primary);
    box-shadow: var(--shadow);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    z-index: 1000;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.theme-toggle:active {
    transform: scale(0.95);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
    padding: 4rem 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    width: 100%;
}

.profile-container {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3rem;
    align-items: center;
}

.profile-image-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.3s ease-in-out;
}

.profile-image-wrapper:hover {
    transform: scale(1.05);
}

.profile-image {
    width: 500px;
    height: 500px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-lg);
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 3rem;
}

.profile-image::before {
    content: "📷";
    font-size: 3rem;
}

.profile-ring {
    position: absolute;
    width: 520px;
    height: 520px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: rotate 3s linear infinite;
}

.hero-text {
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 25px rgba(var(--shadow-color-rgb), 0.15);
}

.stat-number {
    display: block;
    font-size: 1rem;
    font-weight: 1000;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.8;
}

/* Main Content */
.main-content {
    padding: 4rem 0;
}

.section {
    margin-bottom: 3rem;
    background: var(--surface);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.section-header {
    padding: 1.5rem 2rem;
    background: var(--background);
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.section-header:hover {
    background: var(--secondary-color);
}

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section-header i {
    color: var(--primary-color);
}

.toggle-icon {
    color: var(--text-secondary);
    transition: transform 0.3s ease;
    transform: rotate(0deg);
}

.section-content {
    padding: 2rem;
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease, max-height 0.3s ease;
    max-height: 0;
    overflow: hidden;
}

.section.expanded .section-content {
    display: block;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -0.5rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid var(--background);
    box-shadow: 0 0 0 3px var(--border);
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.institution {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Experience Grid */
.experience-grid {
    display: grid;
    gap: 2rem;
}

.experience-card {
    background: var(--background);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.5rem;
    align-items: start;
}

.company-logo {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    overflow: hidden;
}

.company-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

.experience-details h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.company {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.duration {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.skills-used {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.skill-tag {
    background: var(--secondary-color);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.skill-category {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.skill-name {
    font-weight: 500;
    color: var(--text-primary);
}

.skill-level-label {
    font-size: 0.8rem;
    background: var(--primary-color);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 0.25rem;
    font-weight: 500;
}

.skill-level {
    background: var(--border);
    border-radius: 0.5rem;
    height: 0.5rem;
    overflow: hidden;
}

.skill-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 0.5rem;
    transition: width 0.8s ease;
    width: 0%;
}

/* Additional Timeline Styles */
.grade, .gpa, .status {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0.5rem 0;
    font-weight: 500;
}

.thesis {
    margin: 1rem 0;
    padding: 1rem;
    background: rgba(var(--primary-color-rgb, 37, 99, 235), 0.1);
    border-radius: 0.5rem;
    border-left: 3px solid var(--primary-color);
}

.thesis-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.thesis-title {
    font-weight: 500;
    margin-bottom: 0.5rem;
    flex: 1;
}

.thesis-link {
    color: var(--primary-color);
    text-decoration: none;
    padding: 0.5rem;
    border-radius: 0.25rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 2rem;
    height: 2rem;
    background: rgba(var(--primary-color-rgb, 37, 99, 235), 0.1);
}

.thesis-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(var(--primary-color-rgb, 37, 99, 235), 0.3);
}

.thesis-link i {
    font-size: 0.9rem;
}

.thesis-grade {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Experience Card Enhancements */
.location {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0.5rem 0;
}

.achievements {
    margin-top: 1rem;
}

.achievements p {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.achievements ul {
    list-style: none;
    padding: 0;
}

.achievements li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.achievements li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Engagement Card Enhancements */
.role {
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Engagement Grid */
.engagement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.engagement-card {
    background: var(--background);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.engagement-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: var(--secondary-color);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.card-header i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.card-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.card-content {
    padding: 1.5rem;
}

.external-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    margin-top: 1rem;
    transition: color 0.3s ease;
}

.external-link:hover {
    color: var(--accent-color);
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: var(--background);
    padding: 2rem 0;
    margin-top: 4rem;
}

[data-theme="dark"] .footer {
    background: var(--surface);
    color: var(--text-primary);
    border-top: 1px solid var(--border);
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 1rem;
}

.footer-links a {
    color: inherit;
    font-size: 1.2rem;
    transition: color 0.3s ease;
    opacity: 0.8;
}

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