/* =============================================
   CSS CUSTOM PROPERTIES
   ============================================= */
:root {
    --color-bg:             #F5F8FF;
    --color-surface:        #FFFFFF;
    --color-surface-hover:  #EDF2FF;
    --color-accent:         #2563EB;
    --color-accent-light:   #1D4ED8;
    --color-border:         #C0D0E8;
    --color-text-primary:   #0C1A2E;
    --color-text-secondary: #3A5070;
    --color-text-muted:     #7A90AA;

    --font-mono: 'Space Mono', monospace;
    --font-sans: 'DM Sans', sans-serif;

    --nav-height: 64px;
    --max-width:  1100px;
    --pad-x:      2rem;
}

/* =============================================
   RESET & BASE
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}
a:hover { color: var(--color-accent-light); }

img { max-width: 100%; display: block; }

/* =============================================
   NAVIGATION
   ============================================= */
.nav {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    height: var(--nav-height);
    background: rgba(245, 248, 255, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--pad-x);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: 0.05em;
}
.nav-logo:hover { color: var(--color-accent-light); }

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    text-transform: lowercase;
    letter-spacing: 0.05em;
    transition: color 0.2s ease;
}
.nav-links a:hover,
.nav-links a.active { color: var(--color-accent-light); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    background: none;
    border: none;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text-secondary);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* =============================================
   VORONOI CANVAS
   ============================================= */
#voronoi-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.6;
}

/* =============================================
   LAYOUT UTILITIES
   ============================================= */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--pad-x);
    position: relative;
    z-index: 1;
}

.section { padding: 5rem 0; }

.section-header { margin-bottom: 2.5rem; }

.section-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.section-title {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.section-more {
    margin-top: 1.75rem;
    text-align: right;
}
.section-more a {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}
.section-more a:hover { color: var(--color-accent-light); }

/* =============================================
   HERO
   ============================================= */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
}

.hero-inner { padding: 5rem 0; }

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    letter-spacing: 0.15em;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fade-up 0.7s ease forwards;
    animation-delay: 0.1s;
}

.hero-name {
    font-family: var(--font-mono);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1.1;
    margin-bottom: 0.75rem;
    opacity: 0;
    animation: fade-up 0.7s ease forwards;
    animation-delay: 0.2s;
}

.hero-tagline {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.75rem;
    opacity: 0;
    animation: fade-up 0.7s ease forwards;
    animation-delay: 0.3s;
}

.hero-bio {
    font-family: var(--font-sans);
    font-size: 1.05rem;
    font-weight: 300;
    color: var(--color-text-secondary);
    max-width: 540px;
    line-height: 1.75;
    margin-bottom: 2.25rem;
    opacity: 0;
    animation: fade-up 0.7s ease forwards;
    animation-delay: 0.4s;
}

.hero-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    opacity: 0;
    animation: fade-up 0.7s ease forwards;
    animation-delay: 0.5s;
}

.hero-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--color-text-secondary);
    padding: 0.45rem 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.hero-link:hover {
    color: var(--color-accent-light);
    border-color: var(--color-accent);
    background: var(--color-surface);
}

/* =============================================
   PROJECT CARDS
   ============================================= */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.5rem;
    transition: background 0.2s, border-color 0.2s, transform 0.2s;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}
.project-card:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.project-card-title {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.project-card-desc {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 300;
    color: var(--color-text-secondary);
    line-height: 1.65;
    flex: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--color-accent);
    background: rgba(37, 99, 235, 0.07);
    border: 1px solid rgba(37, 99, 235, 0.25);
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    letter-spacing: 0.04em;
}

/* Blog tag variants */
.tag[data-type="tech"]      { color: #4A90D9; background: rgba(74,144,217,0.08); border-color: rgba(74,144,217,0.3); }
.tag[data-type="recherche"] { color: #A78BFA; background: rgba(167,139,250,0.08); border-color: rgba(167,139,250,0.3); }
.tag[data-type="culture"]   { color: #F59E0B; background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.3); }
.tag[data-type="perso"]     { color: #4ADEAC; background: rgba(74,222,172,0.08); border-color: rgba(74,222,172,0.3); }

.project-links {
    display: flex;
    gap: 1rem;
    margin-top: 0.25rem;
}

.project-link {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    transition: color 0.2s;
}
.project-link:hover { color: var(--color-accent-light); }

/* =============================================
   PUBLICATIONS
   ============================================= */
.publications-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.publication-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-accent);
    border-radius: 4px;
    padding: 1.25rem 1.5rem;
}
.publication-item.pending { border-left-color: var(--color-text-muted); }

.publication-title {
    font-family: var(--font-mono);
    font-size: 0.93rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 0.4rem;
}

.publication-meta {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}
.publication-item.pending .publication-meta {
    color: var(--color-text-muted);
    font-style: italic;
}

.publication-link {
    display: inline-block;
    margin-top: 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
}
.publication-link:hover { color: var(--color-accent-light); }

/* =============================================
   BLOG PREVIEW LIST (home)
   ============================================= */
.blog-list {
    display: flex;
    flex-direction: column;
}

.blog-item {
    display: flex;
    align-items: baseline;
    gap: 1.25rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
    color: inherit;
    transition: background 0.15s;
}
.blog-item:last-child { border-bottom: none; }

.blog-item-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    white-space: nowrap;
    min-width: 88px;
}

.blog-item-title {
    font-family: var(--font-sans);
    font-size: 0.93rem;
    color: var(--color-text-secondary);
    transition: color 0.2s;
}
.blog-item:hover .blog-item-title { color: var(--color-accent-light); }

/* =============================================
   PAGE HEADER (inner pages)
   ============================================= */
.page-header {
    padding: calc(var(--nav-height) + 4rem) 0 3rem;
}

.page-header-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.page-header-title {
    font-family: var(--font-mono);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-text-primary);
}

/* =============================================
   TAG FILTERS (projects page)
   ============================================= */
.tag-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2.25rem;
}

.tag-filter {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    background: none;
    border: 1px solid var(--color-border);
    padding: 0.3rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}
.tag-filter:hover {
    border-color: var(--color-accent);
    color: var(--color-accent-light);
}
.tag-filter.active {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

/* =============================================
   BLOG FULL LIST (blog page)
   ============================================= */
.blog-full-list { display: flex; flex-direction: column; }

.blog-full-item {
    display: block;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--color-border);
    color: inherit;
}
.blog-full-item:last-child { border-bottom: none; }

.blog-full-item-header {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.blog-full-item-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.blog-full-item-title {
    font-family: var(--font-sans);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--color-text-primary);
    transition: color 0.2s;
}
.blog-full-item:hover .blog-full-item-title { color: var(--color-accent-light); }

.blog-full-item-excerpt {
    font-family: var(--font-sans);
    font-size: 0.88rem;
    font-weight: 300;
    color: var(--color-text-secondary);
    max-width: 640px;
}

/* =============================================
   CINEMA PAGE
   ============================================= */
.letterboxd-wrap {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--color-surface);
    /* Subtle inner shadow to separate the embed from the page */
    box-shadow: inset 0 1px 3px rgba(37, 99, 235, 0.06);
}

.letterboxd-wrap iframe {
    display: block;
    border: 0;
    width: 100%;
    min-height: 820px;
}

/* =============================================
   LAB PAGE
   ============================================= */
.lab-coming-soon {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    text-align: center;
    gap: 1.25rem;
}

.lab-icon {
    opacity: 0.2;
}

.lab-coming-soon-text {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* =============================================
   BLOG ARTICLE TEMPLATE
   ============================================= */
.article-header {
    padding: calc(var(--nav-height) + 4rem) 0 2.5rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 3rem;
}

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.article-date {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

.article-title {
    font-family: var(--font-mono);
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1.25;
    margin-bottom: 1rem;
}

.article-content {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 300;
    line-height: 1.85;
    color: var(--color-text-secondary);
    max-width: 680px;
}

.article-content h2 {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 2.5rem 0 1rem;
}

.article-content h3 {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 2rem 0 0.75rem;
}

.article-content p { margin-bottom: 1.25rem; }

.article-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-decoration-color: rgba(74, 144, 217, 0.4);
}
.article-content a:hover { color: var(--color-accent-light); }

.article-content code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 0.1em 0.35em;
    border-radius: 3px;
    color: var(--color-accent-light);
}

.article-content pre {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 1.25rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}
.article-content pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.85rem;
}

.article-content ul,
.article-content ol {
    padding-left: 1.5rem;
    margin-bottom: 1.25rem;
}

.article-content blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: 1.25rem;
    margin: 1.5rem 0;
    color: var(--color-text-secondary);
    font-style: italic;
}

.article-back {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
    display: inline-block;
}
.article-back:hover { color: var(--color-accent-light); }

/* =============================================
   FOOTER
   ============================================= */
.footer {
    border-top: 1px solid var(--color-border);
    padding: 2rem 0;
    position: relative;
    z-index: 1;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--pad-x);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.footer-text {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fade-up {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0);    }
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
    :root { --pad-x: 1.25rem; }

    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(245, 248, 255, 0.98);
        flex-direction: column;
        gap: 0;
        border-bottom: 1px solid var(--color-border);
    }
    .nav-links.open { display: flex; }
    .nav-links li { border-bottom: 1px solid var(--color-border); }
    .nav-links a { display: block; padding: 1rem var(--pad-x); }

    .nav-toggle { display: flex; }

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

    .blog-item { flex-direction: column; gap: 0.2rem; }

    .footer-inner { flex-direction: column; text-align: center; }
}