/*
 * ═══════════════════════════════════════════════════════════════════
 *  Blog de Guillaume Evain — Feuille de style principale
 *  Design moderne, professionnel, thème bleu
 * ═══════════════════════════════════════════════════════════════════
 */

/* ── Variables CSS (système de design) ─────────────────────────────────── */
:root {
    /* Familles typographiques — trois rôles, trois variables.
       Changer de piste typographique se fait ici, et nulle part ailleurs
       (penser à ajuster le lien Google Fonts dans les gabarits `base.html`).
         display : titres et intertitres
         sans    : interface, navigation, cartes, métadonnées
         text    : corps des articles et des projets
         mono    : code et données */
    --font-sans:    'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-display: 'Manrope', 'Inter', system-ui, sans-serif;
    --font-text:    var(--font-sans);
    --font-mono:    'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Consolas, monospace;

    /* Largeurs de page */
    --width-page:      1280px;
    --width-page-wide: 1440px;
    --measure:         72ch;   /* longueur de ligne confortable pour le corps de texte */

    /* Palette bleue principale */
    --color-primary:       #1a56db;
    --color-primary-dark:  #1239a0;
    --color-primary-hover: #1d4ed8;
    --color-primary-soft:  #dbeafe;
    --color-accent:        #0ea5e9;
    --color-accent-soft:   #e0f2fe;
    --color-navy:          #0f172a;

    /* Palette de statut */
    --color-success: #059669;
    --color-warning: #d97706;
    --color-danger:  #dc2626;
    --color-info:    #0891b2;

    /* Fond et surfaces */
    --color-bg:      #f0f4fc;
    --color-surface: #ffffff;
    --color-surface-2: #f8fafc;

    /* Typographie */
    --color-text:       #0f172a;
    --color-text-muted: #64748b;
    --color-text-light: #94a3b8;
    --color-border:     #e2e8f0;
    --color-border-light: #f1f5f9;

    /* Ombres */
    --shadow-sm:  0 1px 3px rgba(15,23,42,0.08), 0 1px 2px rgba(15,23,42,0.06);
    --shadow-md:  0 4px 16px rgba(15,23,42,0.10), 0 2px 6px rgba(15,23,42,0.06);
    --shadow-lg:  0 10px 40px rgba(15,23,42,0.12), 0 4px 12px rgba(15,23,42,0.08);
    --shadow-xl:  0 20px 60px rgba(15,23,42,0.16);

    /* Bordures arrondies */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Alias historiques utilisés par les gabarits Portfolio / Projet.
       Sans ces définitions, les déclarations correspondantes sont invalides :
       les couleurs retombent en héritage et les fonds deviennent transparents. */
    --text-primary:   var(--color-text);
    --text-secondary: #3b4a63;
    --text-muted:     var(--color-text-muted);
    --bg-primary:     var(--color-surface);
    --bg-secondary:   var(--color-surface-2);
    --bg-subtle:      var(--color-bg);
    --bg-card:        var(--color-surface);
    --bg-input:       var(--color-surface-2);
    --card-bg:        var(--color-surface);
    --border-color:   var(--color-border);
    --border-light:   var(--color-border-light);
    --accent:         var(--color-accent);
    --font-heading:   var(--font-display);
    --color-primary-border: #bfdbfe;

    /* Espacements */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-24: 6rem;
}

/* ── Reset et base ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

main.site-main { flex: 1; }

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* Scrollbar personnalisée */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-light); }

/* ── Navigation ─────────────────────────────────────────────────────────── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

.site-header.scrolled { box-shadow: var(--shadow-md); }

.nav-container {
    max-width: var(--width-page);
    margin: 0 auto;
    padding: 0 var(--space-6);
    height: 64px;
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    flex-shrink: 0;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
}

.logo-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-text);
    display: block;
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    font-weight: 500;
    letter-spacing: 0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    list-style: none;
    flex: 1;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-soft);
}

.nav-link i { font-size: 0.8rem; }

/* Dropdown catégories */
.nav-dropdown { position: relative; }

.dropdown-toggle { cursor: pointer; }

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 240px;
    padding: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-base);
    z-index: 200;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--color-text);
    transition: background var(--transition-fast);
}

.dropdown-item:hover { background: var(--color-surface-2); }

.cat-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.cat-count {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    background: var(--color-bg);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

/* Recherche dans la nav */
.nav-search { margin-left: auto; flex-shrink: 0; }

.search-wrapper { position: relative; width: 260px; }

.search-input {
    width: 100%;
    padding: var(--space-2) var(--space-4) var(--space-2) 2.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    background: var(--color-surface-2);
    color: var(--color-text);
    transition: all var(--transition-base);
    outline: none;
}

.search-input:focus {
    border-color: var(--color-primary);
    background: white;
    box-shadow: 0 0 0 3px var(--color-primary-soft);
    width: 300px;
}

.search-btn {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    pointer-events: none;
}

.search-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-height: 400px;
    overflow-y: auto;
    z-index: 300;
    display: none;
}

.search-dropdown.visible { display: block; }

.search-result-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border-light);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.search-result-item:hover { background: var(--color-surface-2); }
.search-result-item:last-child { border-bottom: none; }

.search-result-type-icon { font-size: 0.8rem; flex-shrink: 0; width: 1rem; text-align: center; }
.search-result-body { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.search-result-title { font-size: 0.875rem; font-weight: 600; color: var(--color-text); }
.search-result-cat { font-size: 0.75rem; color: var(--color-text-muted); }

/* Titres de sections sur la page de résultats */
.search-section-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--color-border);
}

.search-section-count {
    margin-left: auto;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-text-muted);
    background: var(--color-surface-2);
    padding: 0.15rem 0.55rem;
    border-radius: 999px;
}

/* Burger mobile */
.nav-burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: var(--space-2);
    margin-left: auto;
}

.nav-burger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* ── Boutons ─────────────────────────────────────────────────────────────── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.6rem 1.25rem;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26,86,219,0.3);
}

.btn-primary.sm { padding: 0.45rem 0.9rem; font-size: 0.8rem; }

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.6rem 1.25rem;
    background: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn-outline:hover {
    background: var(--color-primary-soft);
    transform: translateY(-1px);
}

.btn-outline.sm { padding: 0.45rem 0.9rem; font-size: 0.8rem; }
.btn-outline-sm { @extend .btn-outline; font-size: 0.8rem; padding: 0.4rem 0.85rem; }

/* ── Bandeau éditorial (accueil) ─────────────────────────────────────────────
   Registre volontairement sobre : une identité, un périmètre, des volumes.
   Aucune accroche commerciale — la crédibilité vient de la retenue. */
.masthead {
    background: linear-gradient(160deg, #12213a 0%, var(--color-navy) 60%, #0a1424 100%);
    color: white;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.masthead-inner {
    max-width: var(--width-page);
    margin: 0 auto;
    padding: var(--space-12) var(--space-6);
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-12);
    align-items: end;
}

.masthead-eyebrow {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: #8fb4e8;
    margin-bottom: var(--space-3);
}

.masthead-name {
    font-family: var(--font-display);
    font-size: clamp(2rem, 3.4vw, 2.8rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.022em;
}

.masthead-tagline {
    font-family: var(--font-text);
    font-size: 1.1rem;
    font-style: italic;
    color: rgba(255,255,255,0.72);
    margin-top: var(--space-2);
}

.masthead-axes {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-4);
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid rgba(255,255,255,0.14);
    font-size: 0.78rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: 500;
    color: rgba(255,255,255,0.62);
}

.masthead-axes li {
    padding: 0.32rem 0.7rem;
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: var(--radius-sm);
}

.masthead-figures {
    display: flex;
    gap: var(--space-8);
    text-align: right;
}

.masthead-figures dt {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255,255,255,0.5);
    margin-bottom: var(--space-1);
}

.masthead-figures dd {
    font-family: var(--font-display);
    font-size: 1.9rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1;
    font-variant-numeric: lining-nums tabular-nums;
}

@media (max-width: 900px) {
    .masthead-inner { grid-template-columns: 1fr; gap: var(--space-8); padding: var(--space-8) var(--space-6); }
    .masthead-figures { text-align: left; gap: var(--space-6); flex-wrap: wrap; }
}

/* ── Section Hero ────────────────────────────────────────────────────────── */
.hero-section {
    background: white;
    border-bottom: 1px solid var(--color-border-light);
    padding: var(--space-6);
}

.hero-inner {
    max-width: var(--width-page);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-4);
    height: 460px;
}

.hero-main { border-radius: var(--radius-xl); overflow: hidden; position: relative; }

.hero-main-link { display: block; height: 100%; }

.hero-main-image {
    width: 100%;
    height: 100%;
    position: relative;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
}

.hero-main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.hero-main:hover .hero-main-image img { transform: scale(1.03); }

.hero-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: rgba(255,255,255,0.4);
    font-size: 4rem;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15,23,42,0.9) 40%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-8);
    color: white;
}

.hero-meta {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    flex-wrap: wrap;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 1.95rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--space-3);
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.hero-excerpt {
    font-size: 0.9rem;
    opacity: 0.85;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--space-4);
}

.hero-footer {
    display: flex;
    gap: var(--space-4);
    font-size: 0.8rem;
    opacity: 0.8;
}

/* Articles secondaires */
.hero-secondary {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.hero-side-card {
    flex: 1;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.hero-side-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hero-side-link { display: flex; height: 100%; }

.hero-side-image {
    width: 140px;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    position: relative;
    overflow: hidden;
}

.hero-side-image img { width: 100%; height: 100%; object-fit: cover; }

.hero-placeholder-sm {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.5);
    font-size: 2rem;
}

.hero-side-content {
    flex: 1;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.hero-side-title {
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.hero-side-meta {
    display: flex;
    gap: var(--space-3);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: auto;
}

/* ── Badges ──────────────────────────────────────────────────────────────── */
.category-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.65rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    letter-spacing: 0.02em;
}

.category-badge.sm { font-size: 0.7rem; padding: 0.15rem 0.55rem; }
.category-badge.xs { font-size: 0.68rem; padding: 0.1rem 0.5rem; }
.category-badge.lg { font-size: 0.8rem; padding: 0.3rem 0.8rem; }

.featured-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 0.2rem 0.65rem;
    background: rgba(245, 158, 11, 0.95);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 600;
}

/* ── Grille articles ─────────────────────────────────────────────────────── */
.main-content {
    max-width: var(--width-page);
    margin: 0 auto;
    padding: var(--space-8) var(--space-6);
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-8);
    align-items: start;
}

.articles-column {}

.category-section {
    margin-bottom: var(--space-12);
}

.category-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 2px solid var(--color-border-light);
}

.category-header-left { display: flex; align-items: flex-start; gap: var(--space-3); }

.cat-icon-circle {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

.category-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
}

.category-desc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.category-see-all {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-primary);
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    transition: gap var(--transition-fast);
}

.category-see-all:hover { gap: var(--space-3); }

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.articles-grid.three-cols { grid-template-columns: repeat(3, 1fr); }

/* ── Carte article ───────────────────────────────────────────────────────── */
.article-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-link { display: block; height: 100%; }

.card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
    position: relative;
    background: var(--color-bg);
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.article-card:hover .card-image img { transform: scale(1.05); }

.card-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-text-light);
}

.card-featured-badge {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    background: var(--color-warning);
    color: white;
    border-radius: var(--radius-full);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
}

.card-content {
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.04rem;
    font-weight: 700;
    line-height: 1.34;
    letter-spacing: -0.02em;
    color: var(--color-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-fast);
}

.article-card:hover .card-title { color: var(--color-primary); }

.card-excerpt {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-top: auto;
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-border-light);
}

.card-meta {
    font-size: 0.72rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.card-date { font-size: 0.72rem; color: var(--color-text-light); margin-left: auto; }

/* Chiffres alignés : les compteurs et durées se comparent d'une ligne à l'autre. */
.card-meta, .card-date, .article-stats, .popular-views,
.related-meta, .category-count, .cat-count {
    font-variant-numeric: lining-nums tabular-nums;
}

/* ── Métadonnées d'article ────────────────────────────────────────────────── */
.article-meta { font-size: 0.8rem; color: rgba(255,255,255,0.8); display: flex; align-items: center; gap: 4px; }

/* ── Barre latérale ──────────────────────────────────────────────────────── */
.sidebar { position: sticky; top: 80px; display: flex; flex-direction: column; gap: var(--space-4); }

.sidebar-widget {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}

.widget-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.popular-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }

.popular-item { display: flex; gap: var(--space-3); align-items: center; }

.popular-rank {
    width: 22px;
    height: 22px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.popular-content { flex: 1; min-width: 0; }

.popular-title {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color var(--transition-fast);
}

.popular-title:hover { color: var(--color-primary); }

.popular-views { font-size: 0.7rem; color: var(--color-text-muted); }

.category-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-1); }

.category-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--color-text);
    transition: background var(--transition-fast);
}

.category-link:hover, .category-link.active { background: var(--color-surface-2); }

.category-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

.category-name { flex: 1; }

.category-count {
    font-size: 0.72rem;
    padding: 1px 8px;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.tags-cloud { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.tag-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.65rem;
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.tag-pill:hover, .tag-pill.active {
    background: var(--color-primary-soft);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Widget À propos (sidebar) */
.about-widget {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}

.about-avatar {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.4rem;
}

.about-widget h3 { font-size: 1rem; font-weight: 700; }
.about-widget p { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.5; }

.btn-outline-sm {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.4rem 0.85rem;
    border: 1.5px solid var(--color-primary);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.btn-outline-sm:hover { background: var(--color-primary-soft); }

/* ── Article détail ──────────────────────────────────────────────────────── */
.article-hero {
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: flex-end;
    background: linear-gradient(160deg, #12213a 0%, var(--color-navy) 55%, #0a1424 100%);
}

.article-hero.no-image { min-height: 300px; }

.article-hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

/* Les visuels de couverture sont le plus souvent des captures d'écran très
   contrastées : on les traite en texture de fond, jamais en concurrence du titre. */
.article-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.22;
    filter: saturate(0.5) contrast(0.85);
}

.article-hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to top, rgba(10,20,36,0.97) 30%, rgba(10,20,36,0.72) 100%),
        linear-gradient(to right, rgba(10,20,36,0.85) 0%, rgba(10,20,36,0.25) 70%);
}

.article-hero-content {
    position: relative;
    z-index: 1;
    max-width: var(--width-page);
    margin: 0 auto;
    padding: var(--space-12) var(--space-6) var(--space-8);
    color: white;
    width: 100%;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.8rem;
    margin-bottom: var(--space-4);
    opacity: 0.8;
    flex-wrap: wrap;
}

.breadcrumb a { color: inherit; transition: opacity var(--transition-fast); }
.breadcrumb a:hover { opacity: 1; }
.breadcrumb i { font-size: 0.6rem; }

.article-badges { display: flex; gap: var(--space-2); margin-bottom: var(--space-4); flex-wrap: wrap; }

.article-main-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3.2vw, 2.55rem);
    font-weight: 700;
    line-height: 1.18;
    letter-spacing: -0.022em;
    max-width: 24ch;
    margin-bottom: var(--space-4);
    text-wrap: balance;
}

.article-subtitle {
    font-family: var(--font-text);
    font-size: 1.1rem;
    color: rgba(255,255,255,0.82);
    max-width: 62ch;
    line-height: 1.62;
    margin-bottom: var(--space-6);
}

.article-meta-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid rgba(255,255,255,0.2);
}

.article-author { display: flex; align-items: center; gap: var(--space-3); }

.author-avatar {
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.author-name { display: block; font-weight: 600; font-size: 0.9rem; }
.author-date { font-size: 0.8rem; opacity: 0.75; }

.article-stats {
    display: flex;
    gap: var(--space-4);
    font-size: 0.82rem;
    opacity: 0.8;
}

/* Corps de l'article */
.article-body-wrapper {
    background: var(--color-bg);
    padding: var(--space-8) 0;
}

.article-layout {
    max-width: var(--width-page);
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: var(--space-8);
    align-items: start;
}

/* Sans min-width:0, un bloc de code ou une image large impose sa taille
   intrinsèque à la colonne et disloque la grille. */
.article-layout > * { min-width: 0; }

.article-layout.has-tree {
    max-width: var(--width-page-wide);
    grid-template-columns: 220px minmax(0, 1fr) 292px;
}

/* ── Arbre de navigation article (panneau gauche) ────────────────────────── */
.article-tree-nav {
    position: sticky;
    top: 80px;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    scrollbar-width: thin;
}

.tree-nav-inner {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--space-4);
    border: 1px solid var(--color-border);
}

.tree-nav-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--color-border);
}

.tree-node { display: flex; flex-direction: column; }

.tree-node-link {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: background var(--transition-fast), color var(--transition-fast);
    line-height: 1.4;
}

.tree-node-link:hover { background: var(--color-surface-2); color: var(--color-primary); }

.tree-node-link.active {
    background: var(--color-primary)10;
    color: var(--color-primary);
    font-weight: 600;
}

.tree-node-icon {
    font-size: 0.65rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
    opacity: 0.6;
}

.tree-node-link.active .tree-node-icon { opacity: 1; }

.tree-children {
    margin-left: var(--space-4);
    border-left: 1px solid var(--color-border);
    padding-left: var(--space-2);
    margin-top: 2px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.tree-children .tree-children {
    margin-left: var(--space-3);
}

.tree-projects {
    margin-left: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-top: 2px;
}

.tree-project-link {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    color: #6366f1;
    text-decoration: none;
    transition: background var(--transition-fast);
    line-height: 1.4;
}

.tree-project-link:hover { background: #f0f0ff; }

/* Barre de progression de lecture */
.reading-progress {
    position: fixed;
    top: 64px;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    z-index: 99;
    width: 0;
    transition: width 0.1s linear;
}

.article-content {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-12) var(--space-8);
    box-shadow: var(--shadow-sm);
}

/* Tout l'article — étiquettes, texte, partage — s'aligne sur une même
   colonne de lecture, quelle que soit la largeur disponible. */
.article-content > * {
    max-width: 76ch;
    margin-left: auto;
    margin-right: auto;
}

/* Tags dans l'article */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border-light);
}

/* Typographie de l'article
   Corps en Inter : lecture d'écran, rythme régulier sur les articles longs.
   La longueur de ligne est bornée pour rester lisible quelle que soit la
   largeur de la colonne — un article avec arbre de série et un article seul
   se lisent ainsi exactement de la même façon. */
.prose {
    font-family: var(--font-text);
    font-size: 1.0625rem;
    line-height: 1.75;
    color: #16233a;
    font-variant-numeric: lining-nums;
}

/* Les éléments qui gagnent à respirer occupent toute la colonne */
.prose pre,
.prose img,
.prose figure,
.prose table,
.prose iframe { max-width: none; width: 100%; }

.prose h1, .prose h2, .prose h3, .prose h4 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.28;
    letter-spacing: -0.02em;
    margin: 2.4rem 0 0.85rem;
    color: var(--color-navy);
    text-wrap: balance;
}

.prose h2 {
    font-size: 1.5rem;
    padding-bottom: 0.45rem;
    border-bottom: 1px solid var(--color-border-light);
}
.prose h3 { font-size: 1.22rem; }
.prose h4 { font-size: 1.04rem; }

.prose > :first-child { margin-top: 0; }

.prose p { margin-bottom: 1.15rem; }

.prose a { color: var(--color-primary); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.prose a:hover { color: var(--color-primary-dark); }

.prose ul, .prose ol {
    margin: 1.15rem 0;
    padding-left: 1.6rem;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.prose li::marker { color: var(--color-text-light); }

.prose blockquote {
    border-left: 3px solid var(--color-primary);
    padding: 0.35rem 0 0.35rem 1.35rem;
    margin: 1.6rem 0;
    font-style: italic;
    color: #33445f;
}

.prose pre {
    background: #0c1729;
    color: #e2e8f0;
    border: 1px solid #1c2c47;
    border-radius: var(--radius-md);
    padding: 1.15rem 1.35rem;
    overflow-x: auto;
    margin: 1.6rem 0;
    position: relative;
    font-size: 0.86rem;
    line-height: 1.65;
}

.prose pre code {
    color: inherit;
    background: none;
}

.prose code {
    font-family: var(--font-mono);
    font-size: 0.86em;
}

.prose :not(pre) > code {
    background: #eef2f9;
    border: 1px solid #dde5f0;
    padding: 0.08em 0.36em;
    border-radius: 4px;
    color: #0d3a7a;
    font-size: 0.84em;
}

.prose img {
    border-radius: var(--radius-md);
    margin: 1.6rem auto;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.prose iframe {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--radius-lg);
    border: none;
    margin: 1.5rem 0;
}

.prose hr {
    border: none;
    border-top: 2px solid var(--color-border);
    margin: 2rem 0;
}

.prose strong { font-weight: 700; color: var(--color-navy); }

/* Partage */
.article-share {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-6) 0;
    border-top: 1px solid var(--color-border-light);
    border-bottom: 1px solid var(--color-border-light);
    margin: var(--space-8) 0;
    flex-wrap: wrap;
}

.share-label { font-size: 0.85rem; font-weight: 600; color: var(--color-text-muted); }

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
}

.share-btn.twitter { background: #1da1f2; color: white; }
.share-btn.linkedin { background: #0a66c2; color: white; }
.share-btn.copy-link { background: var(--color-surface-2); color: var(--color-text); border: 1px solid var(--color-border); }
.share-btn:hover { filter: brightness(0.9); transform: translateY(-1px); }

.article-nav-links { margin-top: var(--space-4); }

.back-to-blog {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 600;
    transition: gap var(--transition-fast);
}

.back-to-blog:hover { gap: var(--space-3); }

/* Barre latérale article */
.article-sidebar { position: sticky; top: 80px; display: flex; flex-direction: column; gap: var(--space-4); }

.toc-widget nav { display: flex; flex-direction: column; gap: var(--space-1); }
.toc-widget a { font-size: 0.82rem; color: var(--color-text-muted); padding: var(--space-1) 0; transition: color var(--transition-fast); }
.toc-widget a:hover { color: var(--color-primary); }
.toc-widget a.active { color: var(--color-primary); font-weight: 600; }
.toc-h3 { padding-left: var(--space-4) !important; }

.author-card { display: flex; flex-direction: column; align-items: center; text-align: center; gap: var(--space-3); }
.author-card-avatar {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}
.author-card h3 { font-size: 1rem; font-weight: 700; }
.author-title { font-size: 0.8rem; color: var(--color-primary); font-weight: 600; }
.author-bio { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.5; }

.related-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.related-item { display: flex; gap: var(--space-3); align-items: center; }
.related-image { width: 60px; height: 45px; border-radius: var(--radius-sm); overflow: hidden; flex-shrink: 0; }
.related-image img { width: 100%; height: 100%; object-fit: cover; }
.related-placeholder { width: 100%; height: 100%; background: var(--color-surface-2); display: flex; align-items: center; justify-content: center; color: var(--color-text-light); }
.related-content { flex: 1; min-width: 0; }
.related-title { display: block; font-size: 0.8rem; font-weight: 600; color: var(--color-text); line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color var(--transition-fast); }
.related-item:hover .related-title { color: var(--color-primary); }
.related-meta { font-size: 0.7rem; color: var(--color-text-muted); }

/* ── En-têtes de pages ───────────────────────────────────────────────────── */
.page-header {
    background: white;
    border-bottom: 3px solid var(--color-primary);
    padding: var(--space-8) var(--space-6);
}

.page-header-inner {
    max-width: var(--width-page);
    margin: 0 auto;
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.page-header-icon {
    width: 56px;
    height: 56px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.page-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
}

.page-subtitle { color: var(--color-text-muted); font-size: 1rem; margin-top: var(--space-1); }

.page-header-stats { margin-left: auto; }

.stat-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.4rem 1rem;
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

/* ── Pagination ──────────────────────────────────────────────────────────── */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-8);
    flex-wrap: wrap;
}

.page-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 0.5rem 1rem;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.page-btn:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-soft); }
.page-btn.current { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.page-numbers { display: flex; gap: var(--space-1); }
.page-ellipsis { padding: 0.5rem; color: var(--color-text-muted); }
.page-info { font-size: 0.875rem; color: var(--color-text-muted); }

/* ── État vide ────────────────────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-6);
    color: var(--color-text-muted);
}

.empty-state > i {
    font-size: 3rem;
    opacity: 0.3;
    margin-bottom: var(--space-4);
    display: block;
}

.empty-state h3 { font-size: 1.25rem; font-weight: 700; color: var(--color-text); margin-bottom: var(--space-2); }
.empty-state p { margin-bottom: var(--space-6); }

.search-suggestions { margin-top: var(--space-8); }
.search-suggestions h4 { font-size: 0.9rem; margin-bottom: var(--space-3); }

/* ── Formulaire de recherche étendu ─────────────────────────────────────── */
.search-form-wrapper {
    max-width: var(--width-page);
    margin: 0 auto;
    padding: var(--space-6) var(--space-6) 0;
}

.search-input-wrapper {
    display: flex;
    gap: var(--space-3);
    align-items: center;
    background: white;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2) var(--space-2) var(--space-2) var(--space-4);
    box-shadow: var(--shadow-sm);
    transition: border-color var(--transition-base);
}

.search-input-wrapper:focus-within { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }

.search-icon { color: var(--color-text-light); font-size: 1rem; }

.search-input-full {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1rem;
    color: var(--color-text);
    background: transparent;
}

/* ── Page À propos ───────────────────────────────────────────────────────── */
.about-hero {
    background: linear-gradient(160deg, #12213a 0%, var(--color-navy) 60%, #0a1424 100%);
    padding: var(--space-16) var(--space-6);
    color: white;
}

.about-hero-inner {
    max-width: var(--width-page);
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-12);
    align-items: center;
}

.avatar-ring {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    padding: 4px;
    flex-shrink: 0;
}

.avatar-inner {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--color-navy);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
}

.about-badges-row { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-bottom: var(--space-4); }

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.3rem 0.85rem;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 500;
    backdrop-filter: blur(4px);
}

.about-name {
    font-family: var(--font-display);
    font-size: clamp(2rem, 3.6vw, 2.85rem);
    font-weight: 700;
    letter-spacing: -0.022em;
    line-height: 1.1;
    margin-bottom: 0.25rem;
}

.about-title { font-size: 1.1rem; opacity: 0.85; font-weight: 500; margin-bottom: 0.5rem; }
.about-tagline { font-family: var(--font-text); font-style: italic; font-size: 1rem; opacity: 0.7; margin-bottom: var(--space-5); }

.about-intro-text {
    font-family: var(--font-text);
    max-width: 68ch;
    font-size: 1.1rem;
    line-height: 1.68;
    color: rgba(255,255,255,0.86);
    margin-bottom: var(--space-6);
}

.about-cta { display: flex; gap: var(--space-3); flex-wrap: wrap; }

.about-section {
    padding: var(--space-16) var(--space-6);
}

.about-container { max-width: var(--width-page); margin: 0 auto; }

.section-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text);
    margin-bottom: var(--space-2);
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--space-10);
    font-size: 1rem;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.expertise-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.expertise-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.expertise-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: var(--space-4);
}

.expertise-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: var(--space-2); }
.expertise-card p { font-size: 0.875rem; color: var(--color-text-muted); line-height: 1.7; margin-bottom: var(--space-4); }

.expertise-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
}

.expertise-tags span {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    background: var(--color-bg);
    border-radius: var(--radius-full);
    color: var(--color-text-muted);
    font-weight: 500;
}

.about-philosophy { background: white; padding: var(--space-16) var(--space-6); }

.philosophy-grid { max-width: var(--width-page); margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); }

.philosophy-points { display: flex; flex-direction: column; gap: var(--space-6); }

.philosophy-point { display: flex; gap: var(--space-4); }

.point-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.philosophy-point h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.4rem; }
.philosophy-point p { font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.7; }

.big-quote {
    background: linear-gradient(135deg, var(--color-primary-soft), var(--color-accent-soft));
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    margin-bottom: var(--space-8);
}

.big-quote p {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-style: italic;
    color: var(--color-navy);
    line-height: 1.7;
    margin-bottom: var(--space-3);
}

.big-quote cite { font-size: 0.9rem; color: var(--color-primary); font-weight: 600; font-style: normal; }

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.about-stat {
    text-align: center;
    padding: var(--space-4);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.stat-number { display: block; font-family: var(--font-display); font-size: 2rem; font-weight: 700; color: var(--color-primary); line-height: 1; }
.stat-label { font-size: 0.75rem; color: var(--color-text-muted); margin-top: 4px; }

.tech-categories { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }

.tech-group h4 { font-size: 0.85rem; font-weight: 700; margin-bottom: var(--space-3); color: var(--color-text-muted); display: flex; align-items: center; gap: var(--space-2); }

.tech-pills { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.tech-pills span {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
    background: var(--color-primary-soft);
    color: var(--color-primary-dark);
    border-radius: var(--radius-full);
    font-weight: 500;
}

.about-contact {
    background: linear-gradient(135deg, var(--color-navy) 0%, #1e3a5f 100%);
    padding: var(--space-16) var(--space-6);
    color: white;
}

.contact-card { max-width: 700px; margin: 0 auto; text-align: center; }
.contact-card h2 { font-family: var(--font-display); font-size: 2rem; font-weight: 700; margin-bottom: var(--space-3); }
.contact-card p { font-size: 1rem; opacity: 0.85; margin-bottom: var(--space-8); }

.contact-links { display: flex; gap: var(--space-4); justify-content: center; flex-wrap: wrap; }

.contact-btn {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-xl);
    min-width: 220px;
    transition: all var(--transition-base);
}

.contact-btn.linkedin { background: #0a66c2; }
.contact-btn.github { background: #24292f; }
.contact-btn:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.3); }

.contact-btn > i { font-size: 1.8rem; }
.contact-btn strong { display: block; font-weight: 700; font-size: 1rem; }
.contact-btn small { font-size: 0.75rem; opacity: 0.75; }

/* ── Pied de page ────────────────────────────────────────────────────────── */
.site-footer {
    background: var(--color-navy);
    color: rgba(255,255,255,0.8);
    padding: var(--space-12) var(--space-6) 0;
    margin-top: auto;
}

.footer-container {
    max-width: var(--width-page);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--space-3);
}

.footer-logo i { color: var(--color-accent); }

.footer-tagline { font-size: 0.85rem; opacity: 0.65; margin-bottom: var(--space-4); }

.footer-socials { display: flex; gap: var(--space-3); }

.social-link {
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.social-link:hover { background: var(--color-primary); color: white; }

.footer-section h4 { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: white; margin-bottom: var(--space-4); }

.footer-section ul { list-style: none; display: flex; flex-direction: column; gap: var(--space-2); }

.footer-section a { font-size: 0.85rem; opacity: 0.65; transition: opacity var(--transition-fast); }
.footer-section a:hover { opacity: 1; }

.footer-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.footer-tags .tag-pill {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.65);
    font-size: 0.72rem;
}

.footer-tags .tag-pill:hover { background: var(--color-primary-soft); color: var(--color-primary); border-color: var(--color-primary); }

.footer-bottom {
    max-width: var(--width-page);
    margin: 0 auto;
    padding: var(--space-4) 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    opacity: 0.5;
}

/* ── Animations ──────────────────────────────────────────────────────────── */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
/* Entre 1024 et 1400 px, trois colonnes étrangleraient le texte : l'arbre de
   série rejoint la colonne de droite, au-dessus des autres encarts. */
@media (max-width: 1400px) {
    .article-layout.has-tree { grid-template-columns: minmax(0, 1fr) 292px; }
    .article-layout.has-tree .article-content { grid-column: 1; grid-row: 1 / span 2; }
    .article-layout.has-tree .article-tree-nav {
        grid-column: 2;
        grid-row: 1;
        position: static;
        max-height: none;
    }
    .article-layout.has-tree .article-sidebar { grid-column: 2; grid-row: 2; }
}

@media (max-width: 1024px) {
    .hero-inner { height: auto; grid-template-columns: 1fr; }
    .hero-secondary { flex-direction: row; height: 200px; }
    .content-grid { grid-template-columns: 1fr 260px; }
    .expertise-grid { grid-template-columns: repeat(2, 1fr); }
    .tech-categories { grid-template-columns: repeat(2, 1fr); }
    .footer-container { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; flex-direction: column; position: fixed; top: 64px; left: 0; right: 0; background: white; padding: var(--space-4); border-bottom: 1px solid var(--color-border); box-shadow: var(--shadow-md); z-index: 99; }
    .nav-links.open { display: flex; }
    .nav-search { display: none; }
    .nav-burger { display: flex; }
    .dropdown-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; background: var(--color-bg); padding-left: var(--space-4); }
    .content-grid { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
    .article-layout { grid-template-columns: 1fr; }
    .article-layout.has-tree { grid-template-columns: 1fr; }
    .article-layout.has-tree .article-content,
    .article-layout.has-tree .article-tree-nav,
    .article-layout.has-tree .article-sidebar { grid-column: 1; grid-row: auto; }
    .article-tree-nav { position: static; order: -1; }
    .article-sidebar { position: static; }
    .hero-secondary { display: none; }
    .hero-inner { grid-template-columns: 1fr; }
    .about-hero-inner { grid-template-columns: 1fr; text-align: center; }
    .about-avatar-large { display: flex; justify-content: center; }
    .about-cta { justify-content: center; }
    .philosophy-grid { grid-template-columns: 1fr; }
    .expertise-grid { grid-template-columns: 1fr; }
    .tech-categories { grid-template-columns: repeat(2, 1fr); }
    .footer-container { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: var(--space-2); text-align: center; }
    .articles-grid.three-cols { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
    .articles-grid { grid-template-columns: 1fr; }
    .hero-overlay { padding: var(--space-4); }
    .hero-title { font-size: 1.3rem; }
    .article-main-title { font-size: 1.4rem; }
    .article-content { padding: var(--space-4); }
    .main-content { padding: var(--space-4); }
    .articles-grid.three-cols { grid-template-columns: 1fr; }
    .tech-categories { grid-template-columns: 1fr; }
}