/* ==========================================================================
   BLOG — Laurent Agnese Électricité Générale
   Étend styles.css (chargé avant). Styles dédiés listing + article.
   ========================================================================== */

/* === Conteneur générique blog === */
.blog {
    background: var(--paper);
    padding: clamp(2.5rem, 5vw, 4rem) 0 clamp(3rem, 6vw, 5rem);
    min-height: 60vh;
}

.blog-container {
    max-width: 920px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* ==========================================================================
   LISTING — /blog/index.html
   ========================================================================== */

.blog-hero {
    text-align: center;
    margin-bottom: clamp(2rem, 4vw, 3rem);
}
.blog-hero .eyebrow {
    justify-content: center;
}
.blog-hero h1 {
    font-size: clamp(1.85rem, 4.5vw, 2.85rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-bottom: 1rem;
}
.blog-hero h1 em {
    font-style: normal;
    font-family: var(--font-script);
    font-weight: 600;
    color: var(--red-dark);
    font-size: 1.05em;
}
.blog-hero p {
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--ink-60);
    max-width: 640px;
    margin: 0 auto;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}
@media (max-width: 640px) {
    .blog-grid { grid-template-columns: 1fr; gap: 1rem; }
}

.blog-card {
    background: var(--paper);
    border: 1px solid var(--ink-10);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--t) var(--ease);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}
.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(30, 159, 217, 0.3);
}

.blog-card-thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: linear-gradient(135deg, var(--ink-90) 0%, var(--ink) 100%);
}
.blog-card-thumb-pattern {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 70% 30%, rgba(30, 159, 217, 0.25), transparent 60%),
        radial-gradient(ellipse at 30% 80%, rgba(230, 57, 70, 0.15), transparent 55%);
}
.blog-card-thumb-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 64px;
    height: 64px;
    color: var(--paper);
    opacity: 0.85;
}
.blog-card-cat {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.3rem 0.7rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--paper);
    background: rgba(11, 21, 36, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
    border: 1px solid rgba(253, 253, 253, 0.15);
}

.blog-card-body {
    padding: 1.5rem 1.5rem 1.65rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.blog-card-body h2 {
    font-size: 1.18rem;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.015em;
    color: var(--ink);
    margin-bottom: 0.75rem;
}
.blog-card-body p {
    font-size: 0.92rem;
    line-height: 1.55;
    color: var(--ink-60);
    margin-bottom: 1.1rem;
    flex: 1;
}
.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px dashed var(--ink-10);
    font-size: 0.78rem;
    color: var(--ink-60);
}
.blog-card-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}
.blog-card-meta svg {
    width: 14px;
    height: 14px;
    color: var(--blue);
}

/* ==========================================================================
   ARTICLE — /blog/[slug]/index.html
   ========================================================================== */

.article-hero {
    text-align: center;
    margin-bottom: clamp(2rem, 4vw, 3rem);
    padding-bottom: clamp(1.5rem, 3vw, 2rem);
    border-bottom: 1px solid var(--ink-10);
}
.article-hero .article-cat {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
    color: var(--paper);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    margin-bottom: 1.25rem;
}
.article-hero h1 {
    font-size: clamp(1.85rem, 4.5vw, 2.85rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-bottom: 1rem;
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}
.article-hero h1 em {
    font-style: normal;
    color: var(--red-dark);
}
.article-lead {
    font-size: 1.12rem;
    line-height: 1.55;
    color: var(--ink-80);
    max-width: 680px;
    margin: 0 auto 1.5rem;
    font-weight: 500;
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    font-size: 0.85rem;
    color: var(--ink-60);
    flex-wrap: wrap;
}
.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}
.article-meta svg {
    width: 16px;
    height: 16px;
    color: var(--blue);
}

/* === Body article === */
.article-body {
    max-width: 720px;
    margin: 0 auto;
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--ink-80);
}
.article-body > * + * {
    margin-top: 1.1rem;
}
.article-body h2 {
    font-size: 1.55rem;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.015em;
    color: var(--ink);
    margin-top: 2.25rem;
    margin-bottom: 0.65rem;
    padding-top: 0.5rem;
    scroll-margin-top: 110px;
}
.article-body h3 {
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--ink);
    margin-top: 1.85rem;
    margin-bottom: 0.5rem;
}
.article-body p {
    color: var(--ink-80);
}
.article-body strong {
    color: var(--ink);
    font-weight: 700;
}
.article-body a {
    color: var(--blue-dark);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    transition: color var(--t-fast) var(--ease);
}
.article-body a:hover {
    color: var(--blue);
}

.article-body ul,
.article-body ol {
    padding-left: 1.4rem;
    margin-top: 0.5rem;
}
.article-body ul li,
.article-body ol li {
    margin-top: 0.45rem;
    line-height: 1.65;
}
.article-body ul li::marker {
    color: var(--blue);
}

.article-body blockquote {
    border-left: 4px solid var(--blue);
    padding: 0.85rem 1.25rem;
    background: var(--blue-soft);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--ink);
    font-style: italic;
    margin: 1.5rem 0;
}

.article-body .info-box {
    background: var(--paper-alt);
    border: 1px solid var(--ink-10);
    border-left: 4px solid var(--blue);
    padding: 1.1rem 1.35rem;
    border-radius: var(--radius);
    margin: 1.5rem 0;
}
.article-body .info-box strong {
    display: block;
    color: var(--blue-dark);
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 0.45rem;
}
.article-body .info-box p:last-child { margin-bottom: 0; }

.article-body .warning-box {
    background: rgba(230, 57, 70, 0.05);
    border: 1px solid rgba(230, 57, 70, 0.2);
    border-left: 4px solid var(--red);
    padding: 1.1rem 1.35rem;
    border-radius: var(--radius);
    margin: 1.5rem 0;
}
.article-body .warning-box strong {
    display: block;
    color: var(--red-dark);
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 0.45rem;
}

/* === CTA mi/fin d'article === */
.article-cta {
    margin: 3rem auto 0;
    max-width: 720px;
    padding: 1.85rem 2rem;
    background: linear-gradient(135deg, var(--blue-soft) 0%, var(--paper-alt) 100%);
    border-radius: var(--radius-lg);
    border: 1px dashed rgba(30, 159, 217, 0.3);
    text-align: center;
}
.article-cta h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}
.article-cta p {
    font-size: 0.95rem;
    color: var(--ink-60);
    margin-bottom: 1rem;
}
.article-cta .btn {
    margin-top: 0.5rem;
}

/* === Bas de page article — navigation + share === */
.article-footer {
    max-width: 720px;
    margin: 3rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid var(--ink-10);
}
.article-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--paper-alt);
    color: var(--ink);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.93rem;
    border: 1px solid var(--ink-10);
    transition: all var(--t-fast) var(--ease);
}
.article-back:hover {
    background: var(--blue-soft);
    border-color: var(--blue);
    color: var(--blue-dark);
}
.article-back svg {
    width: 16px;
    height: 16px;
}

.article-share {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.article-share-label {
    font-size: 0.85rem;
    color: var(--ink-60);
    font-weight: 600;
}
.article-share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.article-share-buttons a {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--ink-10);
    background: var(--paper);
    color: var(--ink-80);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 600;
    transition: all var(--t-fast) var(--ease);
}
.article-share-buttons a:hover {
    background: var(--blue-soft);
    border-color: var(--blue);
    color: var(--blue-dark);
}
.article-share-buttons svg {
    width: 14px;
    height: 14px;
}

/* === Related articles bottom === */
.article-related {
    max-width: 920px;
    margin: 4rem auto 0;
    padding-top: 3rem;
    border-top: 1px solid var(--ink-10);
}
.article-related h2 {
    font-size: 1.45rem;
    font-weight: 700;
    text-align: center;
    color: var(--ink);
    margin-bottom: 1.75rem;
    letter-spacing: -0.015em;
}
.article-related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

/* === Reading progress bar === */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--blue) 0%, var(--red) 100%);
    z-index: 100;
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 100ms linear;
    pointer-events: none;
}