/*
Theme Name: Appartement Témoin
Theme URI: https://example.com
Author: Votre Nom
Author URI: https://example.com
Description: Template WordPress minimaliste, léger et réutilisable
Version: 1.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: minimal-theme
*/

/* ==========================================================================
   TABLE DES MATIÈRES
   ==========================================================================
   1. VARIABLES CSS
   2. RESET & BASE
   3. LAYOUT GÉNÉRAL
   4. HEADER & NAVIGATION
   5. HERO / ENTÊTE MODULAIRE
   6. FRONTPAGE
   7. ARCHIVES & CATÉGORIES
   8. SINGLE & PAGES
   9. SIDEBAR & SOMMAIRE
   10. BREADCRUMB
   11. PAGINATION
   12. FOOTER
   13. UTILITAIRES
   14. RESPONSIVE
   ========================================================================== */

/* ==========================================================================
   1. VARIABLES CSS
   ========================================================================== */

:root {
    /* ======================================================
       CHARTE APPARTEMENT TÉMOIN — « Fiche de collection »
       Couleurs gérées ici uniquement (pas de Customizer)
       ====================================================== */

    /* Palette de base */
    --at-ivoire:      #F5F1E8;  /* fond papier */
    --at-ivoire-fonce:#ECE5D6;  /* fonds secondaires, encadrés */
    --at-encre:       #1E1B18;  /* texte principal */
    --at-gris-encre:  #5E574F;  /* texte secondaire, métadonnées */
    --at-sang-boeuf:  #7A2E2A;  /* accent principal : liens, boutons */
    --at-sang-fonce:  #5C211E;  /* survol */
    --at-laiton:      #A8843F;  /* filets, détails, numéros */
    --at-filet:       #D9CFBC;  /* bordures */
    --at-blanc:       #FFFDF8;  /* texte sur fond foncé, cartes */

    /* Rôles (utilisés dans tout le thème) */
    --color-primary: var(--at-sang-boeuf);
    --color-secondary: var(--at-sang-fonce);
    --color-accent: var(--at-laiton);
    --color-text: var(--at-encre);
    --color-text-light: var(--at-gris-encre);
    --color-link: var(--at-sang-boeuf);
    --color-link-hover: var(--at-sang-fonce);
    --color-background: var(--at-ivoire);
    --color-background-alt: var(--at-ivoire-fonce);
    --color-surface: var(--at-blanc);
    --color-on-primary: var(--at-blanc);
    --color-border: var(--at-filet);

    /* Typographie */
    --font-heading: 'Fraunces', Georgia, 'Times New Roman', serif;
    --font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    --font-label: 'IBM Plex Mono', 'Courier New', monospace;
    --font-size-base: 1.125rem;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.375rem;
    --font-size-2xl: 1.625rem;
    --font-size-3xl: 2.125rem;
    --font-size-4xl: 2.75rem;
    --line-height: 1.7;

    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Largeurs */
    --max-width: 1200px;
    --max-width-content: 800px;
    
    /* Bordures & Ombres */
    --border-radius: 2px;
    --box-shadow: 0 1px 3px rgba(30, 27, 24, 0.08);
    --box-shadow-lg: 0 10px 40px rgba(30, 27, 24, 0.08);
    
    /* Transitions */
    --transition: 0.3s ease;
}

/* ==========================================================================
   2. RESET & BASE
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--color-link);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-link-hover);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-optical-sizing: auto;
    letter-spacing: -0.01em;
    line-height: 1.3;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
    margin-bottom: var(--spacing-sm);
}

ul, ol {
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

/* ==========================================================================
   3. LAYOUT GÉNÉRAL
   ========================================================================== */

.site-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container--narrow {
    max-width: var(--max-width-content);
}

.main-content {
    flex: 1;
    padding: var(--spacing-xl) 0;
    padding-top: 0;
}

/* Header V3 (fixe) : compensation sur les pages sans hero */
.header-v3:not(.home):not(.front-page) .main-content {
    padding-top: 80px;
}

/* Header V3 : le hero doit compenser le header fixe */
.header-v3 .hero {
    padding-top: 80px;
}

/* ==========================================================================
   4. HEADER & NAVIGATION
   ========================================================================== */

.site-header {
    background-color: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    gap: var(--spacing-lg);
    position: relative;
}

/* Logo */
.site-logo {
    flex-shrink: 0;
    order: 1;
}

.site-logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text);
}

.site-logo img {
    max-height: 50px;
    width: auto;
}

/* Navigation principale */
.main-nav {
    display: flex;
    align-items: center;
    order: 3;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    padding: 0;
    margin: 0;
}

.main-nav a {
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition);
}

.main-nav a:hover::after,
.main-nav .current-menu-item a::after {
    width: 100%;
}

.main-nav a:hover {
    color: var(--color-primary);
}

/* Menu mobile toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    position: relative;
    z-index: 1002;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    order: 2;
    margin-left: auto;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    margin: 5px 0;
    transition: var(--transition);
    pointer-events: none;
}

/* ==========================================================================
   5. HERO / ENTÊTE MODULAIRE
   ========================================================================== */

.hero {
    position: relative;
    background-color: var(--color-background-alt);
    overflow: hidden;
}

.hero--image {
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-on-primary);
}

.hero--image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.6));
    z-index: 1;
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero__content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    padding: var(--spacing-xl) var(--spacing-md);
}

.hero__title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-sm);
    color: inherit;
}

.hero__subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-bottom: var(--spacing-md);
}

.hero__cta {
    display: inline-block;
    background-color: var(--color-primary);
    color: var(--color-on-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: background-color var(--transition), transform var(--transition);
}

.hero__cta:hover {
    background-color: var(--color-secondary);
    color: var(--color-on-primary);
    transform: translateY(-2px);
}

/* Hero simple (archives, etc.) */
.hero--simple {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero--simple .hero__title {
    color: var(--color-text);
}

.hero--simple .hero__subtitle {
    color: var(--color-text-light);
}

/* ==========================================================================
   6. FRONTPAGE
   ========================================================================== */

/* Section derniers articles */
.section {
    padding: var(--spacing-2xl) 0;
}

.section__header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section__title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-xs);
}

.section__subtitle {
    color: var(--color-text-light);
    font-size: var(--font-size-lg);
}

/* Grille d'articles */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.post-card {
    background-color: var(--color-background);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: box-shadow var(--transition), transform var(--transition);
    display: flex;
    flex-direction: column;
}

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

.post-card__image {
    aspect-ratio: 16/10;
    overflow: hidden;
    background-color: var(--color-background-alt);
}

.post-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.post-card:hover .post-card__image img {
    transform: scale(1.05);
}

.post-card__content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.post-card__category {
    display: inline-block;
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.post-card__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.post-card__title a {
    color: var(--color-text);
}

.post-card__title a:hover {
    color: var(--color-primary);
}

.post-card__excerpt {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.post-card__date {
    display: block;
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin-top: auto;
}

/* Section catégories */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.category-card {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
    display: flex;
    align-items: flex-end;
}

.category-card__image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(transparent 30%, rgba(0,0,0,0.8));
    z-index: 1;
}

.category-card:hover .category-card__image {
    transform: scale(1.05);
}

.category-card__content {
    position: relative;
    z-index: 2;
    padding: var(--spacing-md);
    color: var(--color-on-primary);
    width: 100%;
}

.category-card__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
    color: inherit;
}

.category-card__description {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    margin-bottom: 0;
}

.category-card__link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
}

/* ==========================================================================
   7. ARCHIVES & CATÉGORIES
   ========================================================================== */

.archive-header {
    text-align: center;
    padding: var(--spacing-xl) 0;
    background-color: var(--color-background-alt);
    margin-bottom: var(--spacing-xl);
}

.archive-header__title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-sm);
}

.archive-header__description {
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Archive header avec image de fond (hero) */
.archive-header--hero {
    position: relative;
    padding: var(--spacing-2xl) 0;
    background-color: transparent;
    overflow: hidden;
    min-height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.archive-header__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.archive-header__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.3) 0%,
        rgba(0, 0, 0, 0.5) 100%
    );
    z-index: 2;
}

.archive-header--hero .container {
    position: relative;
    z-index: 3;
}

.archive-header__content {
    max-width: 700px;
    margin: 0 auto;
}

.archive-header--hero .archive-header__title {
    color: var(--color-on-primary);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

.archive-header--hero .archive-header__description {
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
    font-size: var(--font-size-lg);
}

/* Liste d'articles archives */
.archive-posts {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

/* ==========================================================================
   8. SINGLE & PAGES
   ========================================================================== */

/* Page simple / orpheline (mentions légales, contact, etc.) */
.page-simple {
    padding: var(--spacing-lg) 0 var(--spacing-2xl);
}

.page-simple__header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.page-simple__title {
    font-size: var(--font-size-4xl);
    margin-bottom: 0;
}

.page-simple__content {
    font-size: var(--font-size-lg);
    line-height: 1.8;
}

.page-simple__content h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.page-simple__content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.page-simple__content p {
    margin-bottom: var(--spacing-md);
}

.page-simple__content ul,
.page-simple__content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.page-simple__content li {
    margin-bottom: var(--spacing-xs);
}

.page-simple__content a {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.page-simple__content a:hover {
    text-decoration-color: var(--color-primary);
}

/* Layout article/page avec sommaire */
.single-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--spacing-xl);
    max-width: calc(var(--max-width-content) + 300px);
    margin: 0 auto;
}

.article-content {
    max-width: var(--max-width-content);
}

/* Image d'entête article */
.article-header-image {
    margin-bottom: var(--spacing-lg);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.article-header-image img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}

/* Contenu article */
.article-body {
    font-size: var(--font-size-lg);
    line-height: 1.8;
}

.article-body h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.article-body h2:first-of-type {
    border-top: none;
    padding-top: 0;
}

.article-body h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.article-body p {
    margin-bottom: var(--spacing-md);
}

.article-body img {
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
}

.article-body blockquote {
    border-left: 4px solid var(--color-primary);
    padding-left: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    font-style: italic;
    color: var(--color-text-light);
}

.article-body ul,
.article-body ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.article-body li {
    margin-bottom: var(--spacing-xs);
}

/* ==========================================================================
   9. SIDEBAR & SOMMAIRE
   ========================================================================== */

.sidebar {
    position: sticky;
    top: calc(70px + var(--spacing-lg));
    height: fit-content;
}

.toc {
    padding: var(--spacing-md) 0;
    border-left: 2px solid var(--color-border);
}

.toc__title {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    font-weight: 700;
}

.toc__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc__item {
    margin-bottom: 0;
}

.toc__link {
    display: block;
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    border-left: 2px solid transparent;
    margin-left: -2px;
    transition: all var(--transition);
    line-height: 1.4;
}

.toc__link:hover {
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    background-color: transparent;
}

.toc__link.active {
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    font-weight: 600;
}

/* Sommaire mobile */
.toc-mobile {
    display: none;
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-md);
    z-index: 1100;
}

.toc-mobile__toggle {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
    border: none;
    border-radius: 30px;
    padding: 12px 20px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: transform var(--transition), box-shadow var(--transition);
}

.toc-mobile__toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.toc-mobile__toggle::before {
    content: '☰';
    font-size: 1.1em;
}

.toc-mobile__content {
    display: none;
    position: absolute;
    bottom: 60px;
    right: 0;
    background-color: var(--color-background);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    min-width: 280px;
    max-height: 60vh;
    overflow-y: auto;
}

.toc-mobile__content .toc__title {
    padding: 0 var(--spacing-md) var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.toc-mobile__content .toc__link {
    padding: var(--spacing-xs) var(--spacing-md);
    margin-left: 0;
    border-left: none;
}

.toc-mobile__content .toc__link:hover {
    background-color: var(--color-background-alt);
    border-left: none;
}

.toc-mobile__content.active {
    display: block;
    animation: tocSlideUp 0.2s ease;
}

@keyframes tocSlideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   10. BREADCRUMB
   ========================================================================== */

.breadcrumb {
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.breadcrumb__list {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: var(--spacing-xs);
}

.breadcrumb__item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.breadcrumb__item:not(:last-child)::after {
    content: '›';
    color: var(--color-text-light);
}

.breadcrumb__link {
    color: var(--color-text-light);
}

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

.breadcrumb__current {
    color: var(--color-text);
    font-weight: 500;
}

/* ==========================================================================
   11. PAGINATION
   ========================================================================== */

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-sm);
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all var(--transition);
}

.pagination a {
    background-color: var(--color-background-alt);
    color: var(--color-text);
}

.pagination a:hover {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
}

.pagination .current {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
}

.pagination .dots {
    background: none;
    color: var(--color-text-light);
}

/* ==========================================================================
   12. FOOTER
   ========================================================================== */

.site-footer {
    background-color: var(--color-background-alt);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0;
    margin-top: auto;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
}

.footer-nav ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    list-style: none;
    gap: var(--spacing-md);
    padding: 0;
    margin: 0;
}

.footer-nav a {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

.footer-nav a:hover {
    color: var(--color-primary);
}

.footer-copyright {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

/* ==========================================================================
   13. UTILITAIRES
   ========================================================================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.hidden { display: none !important; }

/* Boutons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
}

.btn--primary {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
}

.btn--primary:hover {
    background-color: var(--color-secondary);
    color: var(--color-on-primary);
}

.btn--outline {
    background-color: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

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

/* ==========================================================================
   14. RESPONSIVE
   ========================================================================== */

/* Tablette */
@media (max-width: 1024px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
    }
    
    .single-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
    
    .toc-mobile {
        display: block;
    }
    
    /* Grilles tablette - 2 colonnes */
    .posts-grid,
    .categories-grid,
    .archive-posts {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    /* Archive header hero mobile */
    .archive-header--hero {
        min-height: 200px;
        padding: var(--spacing-xl) 0;
    }
    
    .archive-header--hero .archive-header__title {
        font-size: var(--font-size-3xl);
    }
    
    .archive-header--hero .archive-header__description {
        font-size: var(--font-size-base);
    }
    
    /* Page simple mobile */
    .page-simple__title {
        font-size: var(--font-size-3xl);
    }
    
    .page-simple__content {
        font-size: var(--font-size-base);
    }
    
    /* Header mobile */
    .menu-toggle {
        display: flex !important;
    }
    
    .main-nav {
        display: none !important;
        position: fixed;
        top: 0;
        right: 0;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-background);
        box-shadow: -5px 0 20px rgba(0,0,0,0.15);
        padding: 80px 24px 24px 24px;
        z-index: 1001;
        flex-direction: column;
        overflow-y: auto;
    }
    
    #main-nav.active {
        display: flex !important;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 0;
    }
    
    .main-nav li {
        border-bottom: 1px solid var(--color-border);
    }
    
    .main-nav a {
        display: block;
        padding: 15px 0;
        font-size: 18px;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .main-nav a {
        display: block;
        padding: var(--spacing-sm) 0;
        font-size: var(--font-size-lg);
    }
    
    /* Hero mobile */
    .hero--image {
        min-height: 300px;
    }
    
    .hero__title {
        font-size: var(--font-size-3xl);
    }
    
    /* Grilles mobile - 1 colonne */
    .posts-grid,
    .categories-grid,
    .archive-posts {
        grid-template-columns: 1fr;
    }
    
    /* Footer mobile */
    .footer-nav ul {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* Très petit écran */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero__content {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
}

/* ==========================================================================
   15. CHARTE APPARTEMENT TÉMOIN — compléments
   ========================================================================== */

/* Libellés façon étiquette de musée : catégories, dates, piliers */
.post-category, .entry-meta, .post-meta, .breadcrumb, .cat-links, .label {
    font-family: var(--font-label);
    font-size: var(--font-size-xs);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

/* Filet laiton sous les H2 d'article */
.entry-content h2 {
    padding-bottom: 0.35em;
    border-bottom: 1px solid var(--color-accent);
}

.entry-content a {
    text-decoration-color: var(--color-accent);
    text-underline-offset: 0.2em;
}

::selection {
    background: var(--at-laiton);
    color: var(--at-blanc);
}

/* ==========================================================================
   16. STYLE RÉTRO — ÉLÉMENTS COMMUNS
   ========================================================================== */

:root {
    --at-shadow-retro: 8px 8px 0 var(--color-accent);
    --at-shadow-retro-sm: 5px 5px 0 var(--color-text);
}

/* Cadre rétro : passe-partout ivoire + filet encre + ombre décalée laiton */
.at-frame {
    position: relative;
    padding: 12px;
    background: var(--color-surface);
    border: 1px solid var(--color-text);
    box-shadow: var(--at-shadow-retro);
}
.at-frame::after {               /* second filet intérieur, façon gravure */
    content: "";
    position: absolute;
    inset: 6px;
    border: 1px solid var(--color-border);
    pointer-events: none;
}
.at-frame img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: sepia(0.12) contrast(1.02);
}

.at-label {
    font-family: var(--font-label);
    font-size: var(--font-size-xs);
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-light);
}
.at-label--pill {
    display: inline-block;
    padding: 4px 10px;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    text-decoration: none;
}
.at-label--pill:hover {
    background: var(--color-primary);
    color: var(--color-on-primary);
}

.at-section-title {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
    font-size: var(--font-size-2xl);
    padding-bottom: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-text);
}
.at-section-title .at-label { color: var(--color-accent); }

/* ==========================================================================
   17. ARTICLE — EN-TÊTE RÉTRO + CORPS
   ========================================================================== */

.at-article-hero {
    padding: var(--spacing-lg) 0 var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}
.at-article-hero__grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}
.at-article-hero__grid--no-image { grid-template-columns: 1fr; max-width: var(--max-width-content); }
.at-article-hero__text { display: flex; flex-direction: column; gap: var(--spacing-sm); align-items: flex-start; }
.at-article-hero .article-title {
    font-size: var(--font-size-4xl);
    line-height: 1.12;
    margin: 0;
}
.at-article-hero .article-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.at-article-hero__intro {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-accent);
}
.at-article-hero__intro p { margin-bottom: var(--spacing-sm); }
.at-article-hero__intro p:last-child { margin-bottom: 0; }
.at-article-hero__intro p:first-child::first-letter {   /* lettrine */
    font-family: var(--font-heading);
    float: left;
    font-size: 3.4em;
    line-height: 0.85;
    padding: 6px 10px 0 0;
    color: var(--color-primary);
}
.at-article-hero__media { margin: 0 8px 8px 0; }
.at-article-hero__media .at-frame { aspect-ratio: 4 / 3; }
.at-article-hero__media figcaption { margin-top: calc(var(--spacing-sm) + 8px); }

.single-layout--no-toc { grid-template-columns: 1fr; max-width: var(--max-width-content); }

.at-article-lead-media { margin-bottom: var(--spacing-lg); }
.at-article-lead-media img,
.at-article-lead-media iframe,
.at-article-lead-media video { width: 100%; margin: 0; }

.article-body figure img,
.article-body > p > img {
    border: 1px solid var(--color-text);
    box-shadow: var(--at-shadow-retro-sm);
    border-radius: 0;
}
.article-body figcaption { font-family: var(--font-label); font-size: var(--font-size-xs); color: var(--color-text-light); margin-top: var(--spacing-sm); }

/* Sommaire rétro */
.toc {
    border: 1px solid var(--color-text);
    background: var(--color-surface);
    padding: var(--spacing-md);
}
.toc__title {
    font-family: var(--font-label);
    color: var(--color-accent);
    padding: 0 0 var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}
.toc__list { counter-reset: toc; }
.toc__item { counter-increment: toc; }
.toc__link {
    display: flex;
    gap: 10px;
    padding: 6px 0;
    font-size: var(--font-size-sm);
    line-height: 1.4;
    color: var(--color-text);
    border-left: none;
    text-decoration: none;
}
.toc__link::before {
    content: counter(toc, decimal-leading-zero);
    font-family: var(--font-label);
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    padding-top: 2px;
}
.toc__link:hover, .toc__link.active { color: var(--color-primary); background: none; }
.toc__link.active::before { color: var(--color-primary); }
.toc-mobile__toggle { font-family: var(--font-label); border-radius: 0; }

.article-tags .tag { border-radius: 0; border: 1px solid var(--color-border); background: var(--color-surface); }
.article-tags .tag:hover { background: var(--color-primary); color: var(--color-on-primary); }

/* ==========================================================================
   18. CATÉGORIE — EN-TÊTE, CARROUSEL, GRILLE RÉTRO
   ========================================================================== */

.at-archive-hero { padding: var(--spacing-lg) 0 var(--spacing-2xl); }
.at-archive-hero__grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-2xl);
    align-items: center;
}
.at-archive-hero__grid--no-image { grid-template-columns: 1fr; max-width: var(--max-width-content); }
.at-archive-hero__media { margin: 0 8px 8px 0; }
.at-archive-hero__media .at-frame { aspect-ratio: 4 / 3; }
.at-archive-hero__title { font-size: var(--font-size-4xl); line-height: 1.1; margin: var(--spacing-xs) 0 var(--spacing-md); }
.at-archive-hero__description { font-size: var(--font-size-lg); color: var(--color-text); }
.at-archive-hero__description p { margin-bottom: var(--spacing-sm); }

/* Carrousel : l'article central est grand, les voisins reculent */
.at-carousel-section { padding: var(--spacing-xl) 0; background: var(--color-background-alt); border-top: 1px solid var(--color-text); border-bottom: 1px solid var(--color-text); }
.at-carousel { position: relative; overflow: hidden; outline: none; }
.at-carousel__track {
    position: relative;
    height: 490px;
    max-width: var(--max-width);
    margin: 0 auto;
}
.at-carousel__item {
    --card-w: min(440px, 80vw);
    position: absolute;
    top: 0;
    left: 50%;
    width: var(--card-w);
    transform:
        translateX(calc(-50% + var(--off) * var(--card-w) * 0.78))
        scale(calc(1 - var(--abs) * 0.16));
    transform-origin: center top;
    z-index: calc(10 - var(--abs));
    opacity: calc(1 - var(--abs) * 0.3);
    filter: grayscale(calc(var(--abs) * 0.6));
    transition: transform 0.6s cubic-bezier(.2,.7,.2,1), opacity 0.6s, filter 0.6s;
    cursor: pointer;
}
.at-carousel__item.is-hidden { opacity: 0; pointer-events: none; }
.at-carousel__link {
    display: block;
    background: var(--color-surface);
    border: 1px solid var(--color-text);
    color: var(--color-text);
    text-decoration: none;
    transition: box-shadow 0.6s;
}
.at-carousel__item.is-active .at-carousel__link { box-shadow: var(--at-shadow-retro); cursor: pointer; }
.at-carousel__image { aspect-ratio: 4 / 3; overflow: hidden; border-bottom: 1px solid var(--color-text); }
.at-carousel__image img { width: 100%; height: 100%; object-fit: cover; filter: sepia(0.12); }
.at-carousel__content { padding: var(--spacing-md); }
.at-carousel__title { font-size: var(--font-size-xl); line-height: 1.25; margin: 6px 0 var(--spacing-xs); }
.at-carousel__excerpt { font-size: var(--font-size-sm); color: var(--color-text-light); display: none; }
.at-carousel__item.is-active .at-carousel__excerpt { display: block; }
.at-carousel__item.is-active .at-carousel__title { color: var(--color-primary); }

.at-carousel__controls { display: flex; justify-content: center; align-items: center; gap: var(--spacing-md); margin-top: var(--spacing-md); }
.at-carousel__btn {
    width: 44px; height: 44px;
    background: var(--color-surface);
    border: 1px solid var(--color-text);
    font-size: 1.1rem;
    cursor: pointer;
    box-shadow: 3px 3px 0 var(--color-text);
    transition: transform 0.15s, box-shadow 0.15s;
}
.at-carousel__btn:hover { background: var(--color-primary); color: var(--color-on-primary); }
.at-carousel__btn:active { transform: translate(3px, 3px); box-shadow: none; }
.at-carousel__dots { display: flex; gap: 8px; }
.at-carousel__dot { width: 10px; height: 10px; padding: 0; border: 1px solid var(--color-text); background: transparent; cursor: pointer; }
.at-carousel__dot.is-active { background: var(--color-primary); border-color: var(--color-primary); }

/* Grille rétro : fiches d'inventaire */
.at-grid-section { padding-top: var(--spacing-2xl); }
.at-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl) var(--spacing-lg);
}
.at-card__link {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--color-surface);
    border: 1px solid var(--color-text);
    color: var(--color-text);
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}
.at-card__link:hover { transform: translate(-3px, -3px); box-shadow: var(--at-shadow-retro); }
.at-card__image { position: relative; aspect-ratio: 3 / 2; overflow: hidden; border-bottom: 1px solid var(--color-text); }
.at-card__image img { width: 100%; height: 100%; object-fit: cover; filter: sepia(0.2) saturate(0.9); transition: filter 0.3s; }
.at-card__link:hover .at-card__image img { filter: none; }
.at-card__number {
    position: absolute; top: 10px; left: 10px;
    padding: 3px 8px;
    background: var(--color-background);
    border: 1px solid var(--color-text);
    color: var(--color-text);
}
.at-card__content { display: flex; flex-direction: column; gap: 6px; padding: var(--spacing-md); flex: 1; }
.at-card__title { font-size: var(--font-size-lg); line-height: 1.3; margin: 0; }
.at-card__link:hover .at-card__title { color: var(--color-primary); }
.at-card__excerpt { font-size: var(--font-size-sm); color: var(--color-text-light); margin: 0; }
.at-card__more { margin-top: auto; padding-top: var(--spacing-xs); color: var(--color-primary); }

/* ==========================================================================
   19. STYLE RÉTRO — RESPONSIVE
   ========================================================================== */

@media (max-width: 1024px) {
    .at-article-hero__grid,
    .at-archive-hero__grid { gap: var(--spacing-lg); }
    .at-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .at-article-hero__grid,
    .at-archive-hero__grid { grid-template-columns: 1fr; }
    .at-article-hero__media { order: -1; }            /* image au-dessus du titre sur mobile */
    .at-carousel__track { height: 470px; }
    .at-carousel__item { --card-w: 78vw; }
    .at-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    .at-carousel__item, .at-card__link { transition: none; }
}