/*
Theme Name: Colombophilie
Theme URI: https://pigeon-voyageur.eu
Author: Expert Colombophile
Author URI: https://pigeon-voyageur.eu
Description: Thème ultra-léger SEO-first pour la niche pigeons voyageurs. Architecture en silo, Core Web Vitals optimisés, mobile-first.
Version: 1.0.0
Requires at least: 6.4
Tested up to: 6.6
Requires PHP: 8.1
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: colombophilie
Tags: blog, custom-menu, featured-images, threaded-comments, translation-ready
*/

/* =============================================
   RESET & BASE — Mobile-first
   ============================================= */

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

:root {
    --color-primary:   #1a3a5c;   /* bleu colombophile */
    --color-accent:    #e8861a;   /* orange pigeonnier */
    --color-light:     #f5f7fa;
    --color-text:      #1e1e2e;
    --color-muted:     #6b7280;
    --color-border:    #e2e8f0;
    --color-white:     #ffffff;

    --font-body:   system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Inter', var(--font-body);

    --size-xs:  0.5rem;
    --size-s:   1rem;
    --size-m:   1.5rem;
    --size-l:   2rem;
    --size-xl:  3rem;
    --size-xxl: 5rem;

    --max-content: 800px;
    --max-wide:    1200px;
    --radius:      6px;
    --shadow:      0 2px 12px rgba(0,0,0,.08);
}

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

body {
    font-family: var(--font-body);
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-white);
}

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

a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}
a:hover { color: var(--color-accent); }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-primary);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }

ul, ol { padding-left: 1.5rem; }
p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* =============================================
   LAYOUT
   ============================================= */

.container {
    width: 100%;
    max-width: var(--max-wide);
    margin-inline: auto;
    padding-inline: var(--size-m);
}

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

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

.site-content {
    flex: 1;
    padding-block: var(--size-xl);
}

#main-content {
    flex: 1;
    padding-block: var(--size-xl);
}

/* Two-column with sidebar */
.content-area {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--size-xl);
}

@media (min-width: 1024px) {
    .content-area {
        grid-template-columns: minmax(0, 1fr) 320px;
    }
}

/* =============================================
   HEADER
   ============================================= */

.site-header {
    background: var(--color-white);
    border-bottom: 2px solid var(--color-primary);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-block: var(--size-s);
    gap: var(--size-s);
}

.site-branding {
    display: flex;
    align-items: center;
    gap: var(--size-s);
    text-decoration: none;
}

.site-logo-svg {
    width: 48px;
    height: 36px;
    display: block;
    flex-shrink: 0;
}

.site-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.site-title a {
    text-decoration: none;
    color: inherit;
}

.site-description {
    font-size: 0.8rem;
    color: var(--color-muted);
}

/* =============================================
   NAVIGATION
   ============================================= */

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--size-xs);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: transform .2s;
}

.primary-navigation ul {
    display: none;
    flex-direction: column;
    list-style: none;
    padding: 0;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-primary);
    box-shadow: var(--shadow);
}

.primary-navigation ul.is-open {
    display: flex;
}

.primary-navigation a {
    display: block;
    padding: var(--size-s) var(--size-m);
    color: var(--color-white);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px solid rgba(255,255,255,.1);
    transition: background .2s;
}

.primary-navigation a:hover,
.primary-navigation .current-menu-item a {
    background: var(--color-accent);
    color: var(--color-white);
}

@media (min-width: 768px) {
    .nav-toggle { display: none; }

    .primary-navigation ul {
        display: flex;
        flex-direction: row;
        position: static;
        background: none;
        box-shadow: none;
    }

    .primary-navigation a {
        color: var(--color-primary);
        border-bottom: none;
        padding: var(--size-xs) var(--size-s);
        border-radius: var(--radius);
    }

    .primary-navigation a:hover,
    .primary-navigation .current-menu-item a {
        background: var(--color-primary);
        color: var(--color-white);
    }
}

/* Breadcrumb */
.breadcrumb {
    font-size: 0.85rem;
    color: var(--color-muted);
    padding-block: var(--size-s);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--size-l);
}

.breadcrumb a { color: var(--color-muted); }
.breadcrumb span { margin-inline: 0.3rem; }

/* =============================================
   HERO / HOMEPAGE
   ============================================= */

.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, #0d2840 100%);
    color: var(--color-white);
    padding-block: var(--size-xxl);
    text-align: center;
}

.hero h1 { color: var(--color-white); font-size: clamp(2rem, 5vw, 3rem); }
.hero p { font-size: 1.2rem; opacity: .85; max-width: 600px; margin-inline: auto; margin-top: var(--size-s); }

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--size-s);
    justify-content: center;
    margin-top: var(--size-l);
}

/* =============================================
   BUTTONS
   ============================================= */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 700;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all .2s;
    font-size: 1rem;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: #c9700f;
    border-color: #c9700f;
    color: var(--color-white);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

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

.btn-youtube {
    background: #ff0000;
    color: var(--color-white);
    border-color: #ff0000;
    font-size: 1.1rem;
    padding: 1rem 2rem;
}

.btn-youtube:hover {
    background: #cc0000;
    border-color: #cc0000;
    color: var(--color-white);
}

/* =============================================
   CATEGORY SILO GRID (Homepage)
   ============================================= */

.silo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--size-m);
    margin-top: var(--size-xl);
}

.silo-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--size-m);
    box-shadow: var(--shadow);
    transition: transform .2s, box-shadow .2s;
    text-decoration: none;
    display: block;
    border-top: 4px solid var(--color-primary);
}

.silo-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0,0,0,.12);
    color: inherit;
}

.silo-card__icon {
    width: 52px;
    height: 52px;
    margin-bottom: var(--size-s);
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f1f5f9;
    border-radius: 12px;
    padding: 8px;
    transition: transform .2s ease, background .2s ease;
}
.silo-card:hover .silo-card__icon {
    transform: translateY(-2px);
    background: #e2e8f0;
}
.silo-card__icon img {
    width: 32px;
    height: 32px;
    display: block;
}
.silo-card__title { font-size: 1.1rem; font-weight: 700; color: var(--color-primary); margin-bottom: var(--size-xs); }
.silo-card__desc { font-size: 0.9rem; color: var(--color-muted); }
.silo-card__count { font-size: 0.8rem; color: var(--color-accent); font-weight: 600; margin-top: var(--size-xs); }

/* =============================================
   ARTICLE CARDS
   ============================================= */

.articles-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--size-l);
}

@media (min-width: 640px) {
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .articles-grid--3 { grid-template-columns: repeat(3, 1fr); }
}

.article-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: box-shadow .2s;
}

.article-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,.12); }

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

.article-card__body {
    padding: var(--size-m);
}

.article-card__cat {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--color-accent);
    text-decoration: none;
    margin-bottom: var(--size-xs);
    display: block;
}

.article-card__title {
    font-size: 1.1rem;
    margin-bottom: var(--size-xs);
}

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

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

.article-card__meta {
    font-size: 0.8rem;
    color: var(--color-muted);
    margin-top: var(--size-xs);
}

.article-card__excerpt {
    font-size: 0.9rem;
    color: var(--color-muted);
    margin-top: var(--size-xs);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* =============================================
   SINGLE ARTICLE
   ============================================= */

.entry-header {
    margin-bottom: var(--size-xl);
}

.entry-category {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--color-accent);
    text-decoration: none;
}

.entry-title {
    margin-top: var(--size-xs);
    margin-bottom: var(--size-s);
}

.entry-meta {
    font-size: 0.85rem;
    color: var(--color-muted);
    display: flex;
    flex-wrap: wrap;
    gap: var(--size-s);
    align-items: center;
}

.entry-meta .author-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.entry-featured-image {
    margin-block: var(--size-m);
    border-radius: var(--radius);
    overflow: hidden;
}

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

/* Article TOC */
.toc {
    background: var(--color-light);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius);
    padding: var(--size-m);
    margin-bottom: var(--size-l);
}

.toc__title {
    font-size: 1rem;
    margin-bottom: var(--size-s);
    color: var(--color-primary);
}

.toc ul {
    margin: 0;
    padding-left: 1.2rem;
}

.toc a { color: var(--color-primary); font-size: 0.9rem; }
.toc a:hover { color: var(--color-accent); }

/* Prose content */
.entry-content {
    max-width: 100%;
}

.entry-content h2 {
    margin-top: var(--size-xl);
    margin-bottom: var(--size-s);
    padding-top: var(--size-m);
    border-top: 2px solid var(--color-border);
}

.entry-content h3 {
    margin-top: var(--size-l);
    margin-bottom: var(--size-xs);
}

.entry-content ul, .entry-content ol {
    margin-bottom: var(--size-m);
}

.entry-content li { margin-bottom: 0.4rem; }

.entry-content blockquote {
    border-left: 4px solid var(--color-accent);
    padding: var(--size-s) var(--size-m);
    background: var(--color-light);
    border-radius: 0 var(--radius) var(--radius) 0;
    margin-block: var(--size-m);
    font-style: italic;
}

.entry-content table {
    width: 100%;
    border-collapse: collapse;
    margin-block: var(--size-m);
    font-size: 0.9rem;
}

.entry-content th, .entry-content td {
    border: 1px solid var(--color-border);
    padding: var(--size-xs) var(--size-s);
    text-align: left;
}

.entry-content th {
    background: var(--color-primary);
    color: var(--color-white);
}

.entry-content tr:nth-child(even) td {
    background: var(--color-light);
}

/* Internal linking box */
.related-category {
    background: var(--color-light);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius);
    padding: var(--size-m);
    margin-block: var(--size-l);
}

.related-category__title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--size-xs);
    text-transform: uppercase;
    letter-spacing: .05em;
}

.related-category ul { margin: 0; padding-left: 1.2rem; }
.related-category li { margin-bottom: 0.3rem; font-size: 0.9rem; }

/* Post tags */
.entry-tags {
    margin-top: var(--size-l);
    padding-top: var(--size-m);
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-wrap: wrap;
    gap: var(--size-xs);
    align-items: center;
}

.entry-tags a {
    background: var(--color-light);
    border: 1px solid var(--color-border);
    padding: 0.2rem 0.6rem;
    border-radius: 100px;
    font-size: 0.8rem;
    text-decoration: none;
    color: var(--color-muted);
    transition: all .2s;
}

.entry-tags a:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* Author box — EEAT */
.author-box {
    display: flex;
    gap: var(--size-m);
    align-items: flex-start;
    background: var(--color-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--size-m);
    margin-top: var(--size-xl);
}

.author-box__avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 3px solid var(--color-primary);
}

.author-box__name {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.author-box__credentials {
    font-size: 0.8rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: var(--size-xs);
}

.author-box__bio { font-size: 0.9rem; color: var(--color-muted); }

/* =============================================
   YOUTUBE PAGE
   ============================================= */

.youtube-hero {
    background: #0f0f0f;
    color: #fff;
    padding-block: var(--size-xxl);
    text-align: center;
}

.youtube-hero h1 {
    color: #fff;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    margin-bottom: var(--size-s);
}

.youtube-hero p {
    font-size: 1.1rem;
    opacity: .8;
    max-width: 640px;
    margin-inline: auto;
    margin-bottom: var(--size-l);
}

.youtube-embed {
    position: relative;
    width: 100%;
    max-width: 900px;
    margin-inline: auto;
    padding-bottom: 0;
    aspect-ratio: 16/9;
    background: #000;
    border-radius: var(--radius);
    overflow: hidden;
    margin-block: var(--size-l);
}

.youtube-embed iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.youtube-stats {
    display: flex;
    justify-content: center;
    gap: var(--size-xl);
    flex-wrap: wrap;
    margin-block: var(--size-l);
}

.youtube-stat {
    text-align: center;
}

.youtube-stat__number {
    font-size: 2rem;
    font-weight: 700;
    color: #ff0000;
}

.youtube-stat__label {
    font-size: 0.85rem;
    opacity: .7;
}

/* =============================================
   SIDEBAR
   ============================================= */

.sidebar {
    position: relative;
}

.widget {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--size-m);
    margin-bottom: var(--size-m);
}

.widget-title {
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: var(--size-s);
    padding-bottom: var(--size-xs);
    border-bottom: 2px solid var(--color-accent);
}

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

.widget li {
    padding-block: 0.35rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
}

.widget li:last-child { border-bottom: none; }
.widget a { text-decoration: none; color: var(--color-primary); }
.widget a:hover { color: var(--color-accent); }

/* =============================================
   PAGINATION
   ============================================= */

.pagination {
    display: flex;
    flex-wrap: wrap;
    gap: var(--size-xs);
    justify-content: center;
    margin-top: var(--size-xl);
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--size-xs);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    text-decoration: none;
    color: var(--color-primary);
    transition: all .2s;
}

.pagination a:hover,
.pagination .current {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* =============================================
   FOOTER
   ============================================= */

.site-footer {
    background: var(--color-primary);
    color: rgba(255,255,255,.8);
    padding-block: var(--size-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--size-xl);
    margin-bottom: var(--size-xl);
}

@media (min-width: 768px) {
    .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}

.footer-about .site-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: var(--size-s);
}

.footer-nav h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--color-accent);
    margin-bottom: var(--size-s);
}

.footer-nav ul { list-style: none; padding: 0; }
.footer-nav li { margin-bottom: 0.4rem; }
.footer-nav a { color: rgba(255,255,255,.75); text-decoration: none; font-size: 0.9rem; }
.footer-nav a:hover { color: var(--color-accent); }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.15);
    padding-top: var(--size-m);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--size-s);
    font-size: 0.8rem;
    color: rgba(255,255,255,.5);
}

/* =============================================
   SKIP LINK — ACCESSIBILITY
   ============================================= */

.skip-link {
    position: absolute;
    top: -9999px;
    left: var(--size-s);
    background: var(--color-accent);
    color: var(--color-white);
    padding: var(--size-xs) var(--size-s);
    border-radius: var(--radius);
    font-weight: 700;
    z-index: 9999;
}

.skip-link:focus { top: var(--size-s); }

/* =============================================
   NOTICES & ALERTS
   ============================================= */

.notice {
    padding: var(--size-s) var(--size-m);
    border-radius: var(--radius);
    border-left: 4px solid;
    margin-bottom: var(--size-m);
    font-size: 0.9rem;
}

.notice--info { background: #e0f0ff; border-color: #3b82f6; color: #1e40af; }
.notice--tip  { background: #fef9c3; border-color: #eab308; color: #854d0e; }
.notice--warn { background: #fff7ed; border-color: var(--color-accent); color: #9a3412; }

/* =============================================
   SEARCH FORM
   ============================================= */

.search-form {
    display: flex;
    gap: var(--size-xs);
}

.search-form input[type="search"] {
    flex: 1;
    padding: 0.6rem var(--size-s);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
}

.search-form button {
    padding: 0.6rem var(--size-s);
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 600;
}

/* =============================================
   UTILITIES
   ============================================= */

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

.text-center { text-align: center; }
.mt-xl { margin-top: var(--size-xl); }
.mb-xl { margin-bottom: var(--size-xl); }

/* =============================================
   SECTION TITLES
   ============================================= */

.section-header {
    text-align: center;
    margin-bottom: var(--size-xl);
}

.section-header__eyebrow {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--color-accent);
    margin-bottom: var(--size-xs);
}

.section-header__title {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.section-header__desc {
    color: var(--color-muted);
    max-width: 600px;
    margin-inline: auto;
    margin-top: var(--size-s);
}

/* =============================================
   PRINT
   ============================================= */

@media print {
    .site-header, .sidebar, .site-footer, .btn, .pagination { display: none; }
    .content-area { grid-template-columns: 1fr; }
    body { font-size: 12pt; }
}