/* Variables et base */
:root {
    --bg-color: #f8f9fa;
    --text-color: #242526;
    --border-color: #dee2e6;
    --accent-color: #007bff;
    --card-bg: #ffffff;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
}

html.dark {
    --bg-color: #242526;
    --text-color: #f8f9fa;
    --border-color: #495057;
    --accent-color: #4dabf7;
    --card-bg: #343a40;
    --shadow: 0 2px 4px rgba(0,0,0,0.3);
}

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

body {
    font-family: 'JetBrains Mono', monospace;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.site-header {
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 3rem;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.site-title {
    font-size: 1.5rem;
    font-weight: 700;
}

.site-title a {
    color: var(--text-color);
    text-decoration: none;
}

/* Cursor animation */
.cursor {
    display: inline-block;
    width: 2px;
    height: 1.2em;
    background-color: var(--text-color);
    animation: blink 1s infinite;
    margin-left: 2px;
    vertical-align: text-bottom;
}

@keyframes blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* Navigation */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.main-nav a {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.main-nav a:hover,
.main-nav a.active {
    border-bottom-color: var(--accent-color);
}

/* Dark mode toggle */
.dark-mode-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.sun-icon,
.moon-icon {
    transition: opacity 0.3s ease;
}

.dark .sun-icon {
    display: none;
}

:not(.dark) .moon-icon {
    display: none;
}

/* Home page */
.home-container {
    max-width: 900px;
}

.intro-section {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: flex-start;
}

.profile-photo {
    flex-shrink: 0;
}

.profile-photo img,
.placeholder-photo {
    width: 150px;
    height: 150px;
    border-radius: 8px;
    object-fit: cover;
}

.placeholder-photo {
    background-color: var(--border-color);
}

.intro-content h2 {
    margin-bottom: 1rem;
}

.intro-text {
    margin-bottom: 1.5rem;
}

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

.social-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.social-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Article cards */
.article-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: box-shadow 0.3s ease;
}

.article-card:hover {
    box-shadow: var(--shadow);
}

.article-date {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.7;
    margin-bottom: 0.5rem;
}

.article-title {
    margin-bottom: 0.5rem;
}

.article-title a {
    color: var(--text-color);
    text-decoration: none;
}

.article-title a:hover {
    color: var(--accent-color);
}

.article-excerpt {
    margin-bottom: 1rem;
    opacity: 0.9;
}

.read-more {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
}

.read-more:hover {
    text-decoration: underline;
}

/* Blog page */
.blog-container h1 {
    margin-bottom: 2rem;
}

.blog-controls {
    margin-bottom: 2rem;
}

.search-box {
    margin-bottom: 1rem;
}

.search-box input {
    width: 100%;
    max-width: 400px;
    padding: 0.75rem;
    font-family: 'JetBrains Mono', monospace;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
}

.tags-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.tag-label {
    font-weight: 600;
    margin-right: 0.5rem;
}

.tag-button {
    padding: 0.5rem 1rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-color);
    transition: all 0.2s ease;
}

.tag-button:hover,
.tag-button.active {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.blog-article {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.article-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tag {
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-color);
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Parcours/CV page */
.parcours-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 3rem;
    align-items: start;
}

.cv-sidebar {
    position: sticky;
    top: 2rem;
}

.cv-nav {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1.5rem;
}

.cv-nav h3 {
    margin-bottom: 1rem;
}

.cv-nav ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.cv-nav li {
    margin-bottom: 0.5rem;
}

.cv-nav a {
    color: var(--text-color);
    text-decoration: none;
    display: block;
    padding: 0.25rem 0;
}

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

.download-cv {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background-color: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    text-align: center;
    justify-content: center;
}

.download-cv:hover {
    opacity: 0.9;
}

.cv-section {
    margin-bottom: 3rem;
}

.cv-section h2 {
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.cv-item {
    margin-bottom: 2rem;
}

.cv-meta {
    display: flex;
    gap: 2rem;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.skill-category h3 {
    margin-bottom: 0.5rem;
}

.skill-category ul {
    list-style: none;
    padding-left: 1rem;
}

/* Tools page */
.tools-container h1 {
    margin-bottom: 2rem;
}

.tools-intro {
    margin-bottom: 3rem;
}

.tools-section {
    margin-bottom: 3rem;
}

.tools-section h2 {
    margin-bottom: 1.5rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.tool-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1.5rem;
}

.tool-card h3 {
    margin-bottom: 0.5rem;
}

.homelab-item,
.hardware-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.hardware-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* Guestbook */
.guestbook-form {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2rem;
    margin-bottom: 3rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    font-family: 'JetBrains Mono', monospace;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
}

.button {
    padding: 0.75rem 1.5rem;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
}

.button:hover {
    opacity: 0.9;
}

.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 2rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.guestbook-entry {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.entry-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.entry-author a {
    color: var(--accent-color);
    text-decoration: none;
}

.entry-author a:hover {
    text-decoration: underline;
}

.entry-date {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Footer */
.site-footer {
    margin-top: 4rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 768px) {
    .site-header .container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .main-nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .intro-section {
        flex-direction: column;
    }
    
    .parcours-container {
        grid-template-columns: 1fr;
    }
    
    .cv-sidebar {
        position: static;
    }
    
    .article-header {
        flex-direction: column;
        align-items: flex-start;
    }
}