/* ==========================================================================
   Blog Styles - Version complète et corrigée
   ========================================================================== */

/* Variables locales pour faciliter la maintenance si les globales manquent */
:root {
    /* Layout & Spacing */
    --header-height: 80px;
    --space-2: 0.5rem;
    --space-6: 1.5rem;
    --space-10: 2.5rem;
    --space-16: 4rem;

    /* Card & Border Radius */
    --card-radius: 16px;

    /* Colors */
    --color-primary-600: rgba(112, 28, 245, 0.4);
    --color-bg-dark: #0a0a0f;
    --primary: #701cf5;
    --secondary: #ff0066;
    --dark: #1a1a2e;
    --gray: #6b7280;
    --light: #f3f4f6;
    --white: #ffffff;

    /* Typography */
    --font-size-sm: 0.875rem;
    --font-size-xl: 1.25rem;
    --font-size-3xl: 1.875rem;
    --font-size-5xl: 3rem;
    --font-weight-medium: 500;
    --font-weight-black: 900;
    --line-height-tight: 1.1;
    --line-height-relaxed: 1.625;
    --letter-spacing-tight: -0.025em;
    --letter-spacing-wider: 0.05em;

    /* Transitions */
    --transition-fast: 0.15s;
    --transition-smooth: cubic-bezier(0.25, 0.8, 0.25, 1);
    --ease-out: cubic-bezier(0.33, 1, 0.68, 1);

    /* Shadows */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
    --shadow-hover: 0 25px 50px -12px rgba(112, 28, 245, 0.15);
}

/* ==========================================================================
   Utilitaires Accessibilité
   ========================================================================== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==========================================================================
   Page Header
   ========================================================================== */
.page-header {
    position: relative;
    padding: calc(var(--header-height) + var(--space-16)) 0 var(--space-16);
    min-height: 45vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.page-header-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.page-header-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 50% 0%, var(--color-primary-600) 0%, transparent 60%),
    var(--color-bg-dark);
}

.page-header-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 25% 25%, rgba(255,255,255,0.02) 1px, transparent 1px),
    radial-gradient(circle at 75% 75%, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 50px 50px;
}

.page-header-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* ==========================================================================
   Breadcrumb
   ========================================================================== */
.breadcrumb {
    margin-bottom: var(--space-6);
}

.breadcrumb ol {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    list-style: none;
    padding: 0;
    margin: 0;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255, 255, 255, 0.6);
}

.breadcrumb li:not(:last-child)::after {
    content: '/';
    color: rgba(255, 255, 255, 0.3);
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color var(--transition-fast) var(--ease-out);
}

.breadcrumb a:hover {
    color: #fff;
}

.breadcrumb [aria-current="page"] {
    color: #fff;
    font-weight: var(--font-weight-medium);
}

/* ==========================================================================
   Page Title & Subtitle
   ========================================================================== */
.page-title {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-black);
    color: #fff;
    line-height: var(--line-height-tight);
    margin-bottom: var(--space-6);
    letter-spacing: var(--letter-spacing-tight);
}

.text-gradient-light {
    background: linear-gradient(to right, #a78bfa, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.75);
    line-height: var(--line-height-relaxed);
    max-width: 600px;
    margin: 0 auto var(--space-10);
}

/* ==========================================================================
   Header Stats
   ========================================================================== */
.page-header-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-10);
    flex-wrap: wrap;
}

.page-header-stat {
    text-align: center;
}

.page-header-stat-value {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-black);
    color: #fff;
    line-height: 1.2;
}

.page-header-stat-label {
    display: block;
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
}

/* ==========================================================================
   Container
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==========================================================================
   Blog Section
   ========================================================================== */
.blog-section {
    padding: 80px 0;
    background-color: var(--light);
    position: relative;
}

/* ==========================================================================
   Blog Layout
   ========================================================================== */
.blog-layout {
    display: grid;
    grid-template-columns: 1fr minmax(300px, 350px);
    gap: 48px;
    align-items: start;
}

.blog-main {
    min-height: 400px;
    display: flex;
    flex-direction: column;
}

/* ==========================================================================
   Blog Grid & Cards
   ========================================================================== */
.blog-grid {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.blog-card {
    background: var(--white);
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.4s var(--transition-smooth),
    box-shadow 0.4s var(--transition-smooth);
    position: relative;
    border: 1px solid rgba(0, 0, 0, 0.03);
    will-change: transform, box-shadow;
}

.blog-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--card-radius);
    padding: 2px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 2;
}

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

.blog-card:hover::after {
    opacity: 1;
}

.blog-card-link {
    display: grid;
    grid-template-columns: minmax(280px, 38%) 1fr;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

/* ==========================================================================
   Blog Card Image
   ========================================================================== */
.blog-card-image {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 260px;
    overflow: hidden;
    background: var(--light);
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--transition-smooth);
    image-rendering: -webkit-optimize-contrast;
}

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

.blog-card-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(112, 28, 245, 0.05), rgba(255, 0, 102, 0.05));
    color: var(--primary);
    opacity: 0.5;
}

.blog-card-placeholder svg {
    width: 64px;
    height: 64px;
}

/* ==========================================================================
   Blog Card Content
   ========================================================================== */
.blog-card-content {
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-card-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 0.875rem;
}

.blog-card-date {
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray);
}

.blog-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.blog-meta-item svg {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

.blog-card-title {
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.3;
    color: var(--dark);
    margin: 0 0 12px 0;
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card:hover .blog-card-title {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blog-card-excerpt {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray);
    margin: 0 0 20px 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==========================================================================
   Blog Tags
   ========================================================================== */
.blog-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0 0 24px 0;
}

.blog-tag {
    padding: 4px 12px;
    background-color: rgba(0, 0, 0, 0.04);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.2s ease;
}

.blog-card:hover .blog-tag {
    background-color: var(--white);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.blog-tag-more {
    background-color: var(--light);
    color: var(--gray);
}

/* ==========================================================================
   Blog Card CTA
   ========================================================================== */
.blog-card-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    color: var(--primary);
    margin-top: auto;
    font-size: 0.95rem;
}

.blog-card-cta svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.blog-card:hover .blog-card-cta svg {
    transform: translateX(6px);
}

/* ==========================================================================
   Sidebar
   ========================================================================== */
.blog-sidebar {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: 32px;
    align-self: start;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    padding-bottom: 20px;
    scrollbar-width: thin;
    scrollbar-color: rgba(0,0,0,0.1) transparent;
}

.blog-sidebar::-webkit-scrollbar {
    width: 6px;
}

.blog-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.blog-sidebar::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.1);
    border-radius: 3px;
}

.sidebar-card {
    background: var(--white);
    border-radius: var(--card-radius);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.sidebar-card-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--dark);
    margin: 0 0 24px 0;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--light);
}

.sidebar-card-title svg {
    width: 20px;
    height: 20px;
    color: var(--primary);
}

/* ==========================================================================
   Tag Cloud (Sidebar)
   ========================================================================== */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-cloud-item {
    padding: 8px 16px;
    background: var(--light);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray);
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.tag-cloud-item:hover {
    background: var(--white);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(112, 28, 245, 0.1);
}

.tag-cloud-item.active {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 10px rgba(112, 28, 245, 0.3);
}

/* ==========================================================================
   Sidebar CTA (About Widget)
   ========================================================================== */
.sidebar-card-cta {
    background: linear-gradient(135deg, rgba(112, 28, 245, 0.05), rgba(255, 0, 102, 0.05));
}

.sidebar-cta-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    margin-bottom: 20px;
}

.sidebar-cta-icon svg {
    width: 24px;
    height: 24px;
}

.sidebar-cta-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin: 0 0 12px 0;
}

.sidebar-cta-text {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--gray);
    margin: 0 0 24px 0;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    box-shadow: 0 4px 12px rgba(112, 28, 245, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(112, 28, 245, 0.4);
}

.btn-block {
    width: 100%;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.btn-icon {
    width: 20px;
    height: 20px;
}

/* ==========================================================================
   Pagination
   ========================================================================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 64px;
}

.pagination ul {
    display: flex;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.pagination .page-item {
    display: flex;
}

.pagination .page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 10px;
    border-radius: 12px;
    background: var(--white);
    color: var(--dark);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.pagination .page-link:hover {
    background: var(--light);
    transform: translateY(-2px);
}

.pagination .page-item.active .page-link {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(112, 28, 245, 0.3);
}

.pagination .page-item.disabled .page-link {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ==========================================================================
   Empty State
   ========================================================================== */
.empty-state {
    text-align: center;
    padding: 100px 20px;
    background: var(--white);
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    background: var(--light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--primary);
}

.empty-state-icon svg {
    width: 40px;
    height: 40px;
}

.empty-state-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    margin: 0 0 12px 0;
}

.empty-state-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray);
    max-width: 500px;
    margin: 0 0 32px 0;
}

/* ==========================================================================
   CTA Section
   ========================================================================== */
.cta {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
    background: var(--color-bg-dark);
}

.cta-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 50% 50%, var(--color-primary-600) 0%, transparent 70%);
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto 2rem;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: var(--font-weight-black);
    color: #fff;
    line-height: var(--line-height-tight);
    margin-bottom: 1.5rem;
}

.cta-description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: var(--line-height-relaxed);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ==========================================================================
   Accessibilité (Focus States)
   ========================================================================== */
.blog-card-link:focus-visible,
.tag-cloud-item:focus-visible,
.pagination .page-link:focus-visible,
.btn:focus-visible,
.breadcrumb a:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 4px;
    border-radius: 4px;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Large Desktop */
@media (max-width: 1400px) {
    .container {
        max-width: 1140px;
    }
}

/* Desktop */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }

    .page-title {
        font-size: 2.5rem;
    }
}

/* Tablette Landscape */
@media (max-width: 1100px) {
    .blog-card-link {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }

    .blog-card-image {
        height: 240px;
        min-height: auto;
    }
}

/* Tablette Portrait */
@media (max-width: 968px) {
    .blog-layout {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .blog-sidebar {
        position: static;
        max-height: none;
        overflow: visible;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 24px;
    }

    .page-header {
        min-height: 40vh;
        padding: calc(var(--header-height) + 3rem) 0 3rem;
    }

    .page-title {
        font-size: 2rem;
    }

    .page-subtitle {
        font-size: 1.125rem;
    }
}

/* Mobile Large */
@media (max-width: 768px) {
    .page-header-stats {
        gap: var(--space-6);
    }

    .page-header-stat-value {
        font-size: 2rem;
    }

    .cta-content h2 {
        font-size: 2rem;
    }
}

/* Mobile Medium */
@media (max-width: 576px) {
    .container {
        padding: 0 16px;
    }

    .blog-section {
        padding: 40px 0;
    }

    .blog-card-content {
        padding: 24px;
    }

    .blog-card-title {
        font-size: 1.25rem;
    }

    .blog-sidebar {
        grid-template-columns: 1fr;
    }

    .sidebar-card {
        padding: 24px;
    }

    .page-header {
        min-height: 35vh;
        padding: calc(var(--header-height) + 2rem) 0 2rem;
    }

    .page-title {
        font-size: 1.75rem;
    }

    .page-subtitle {
        font-size: 1rem;
    }

    .page-header-stats {
        flex-direction: column;
        gap: var(--space-6);
    }

    .cta {
        padding: 60px 0;
    }

    .cta-content h2 {
        font-size: 1.5rem;
    }

    .cta-description {
        font-size: 1rem;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

/* Mobile Small */
@media (max-width: 375px) {
    .page-title {
        font-size: 1.5rem;
    }

    .blog-card-image {
        height: 200px;
    }

    .blog-card-content {
        padding: 20px;
    }
}