/* ========================================
   ISOLEMAMAISON.COM - DESIGN SYSTEM v2.0
   Refonte UX/UI complète - Janvier 2026
   ======================================== */

/* ========================================
   1. CSS VARIABLES - DESIGN TOKENS
   ======================================== */

:root {
    /* Couleurs principales - Thème Isolation/Énergie */
    --color-primary: #2563EB;
    --color-primary-dark: #1D4ED8;
    --color-primary-light: #DBEAFE;
    --color-primary-50: #EFF6FF;

    /* Couleurs secondaires - Énergie/Économie */
    --color-accent: #10B981;
    --color-accent-dark: #059669;
    --color-accent-light: #D1FAE5;
    --color-warning: #F59E0B;
    --color-warning-light: #FEF3C7;
    --color-danger: #EF4444;
    --color-danger-light: #FEE2E2;

    /* Couleurs neutres */
    --color-text: #111827;
    --color-text-secondary: #4B5563;
    --color-text-muted: #9CA3AF;
    --color-bg: #FFFFFF;
    --color-bg-warm: #FFFBF5;
    --color-bg-alt: #F8FAFC;
    --color-bg-dark: #F1F5F9;
    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;

    /* Typographie */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

    /* Tailles de texte */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;

    /* Line heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;

    /* Espacements */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Layout */
    --max-width: 1200px;
    --max-width-content: 800px;

    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-primary: 0 4px 14px 0 rgba(37, 99, 235, 0.25);
    --shadow-accent: 0 4px 14px 0 rgba(16, 185, 129, 0.25);

    /* Bordures */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;
}

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

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

html {
    font-size: 16px;
    line-height: var(--leading-normal);
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

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

/* ========================================
   3. TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    line-height: var(--leading-tight);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-4);
}

h1 {
    font-size: var(--text-4xl);
    letter-spacing: -0.025em;
}

h2 {
    font-size: var(--text-2xl);
    margin-top: var(--space-12);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--color-border-light);
}

h3 {
    font-size: var(--text-xl);
    margin-top: var(--space-8);
    color: var(--color-text-secondary);
}

h4 {
    font-size: var(--text-lg);
    margin-top: var(--space-6);
}

p {
    margin-bottom: var(--space-4);
    line-height: var(--leading-relaxed);
}

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

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

strong, b {
    font-weight: 600;
    color: var(--color-text);
}

em {
    font-style: italic;
}

/* ========================================
   4. LAYOUT
   ======================================== */

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-narrow {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ========================================
   5. HEADER
   ======================================== */

header {
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow var(--transition-normal);
}

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

header nav {
    padding: var(--space-4) 0;
}

header nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
}

/* Logo */
.header-left .logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.header-left .logo:hover {
    opacity: 0.9;
    text-decoration: none;
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.01em;
}

/* Header CTA buttons */
.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.btn-devis {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background-color: var(--color-accent);
    color: white;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--text-sm);
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-accent);
}

.btn-devis:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-1px);
    text-decoration: none;
    color: white;
}

.phone-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--text-sm);
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-primary);
}

.phone-btn:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    text-decoration: none;
    color: white;
}

.phone-btn svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
}

.phone-number {
    white-space: nowrap;
}

/* ========================================
   6. BREADCRUMB
   ======================================== */

.breadcrumb {
    background-color: var(--color-bg-alt);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    gap: var(--space-2);
    font-size: var(--text-sm);
}

.breadcrumb li {
    display: flex;
    align-items: center;
}

.breadcrumb li:not(:last-child)::after {
    content: "›";
    margin-left: var(--space-2);
    color: var(--color-text-muted);
}

.breadcrumb a {
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.breadcrumb li[aria-current="page"] {
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* ========================================
   7. HERO SECTION
   ======================================== */

.hero {
    background: url('hero-bg.png') center center / cover no-repeat;
    padding: var(--space-16) 0;
    text-align: center;
    border-bottom: 1px solid var(--color-border-light);
    position: relative;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.72) 0%, rgba(248, 250, 252, 0.68) 100%);
    z-index: 0;
}

.hero > .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: var(--text-5xl);
    margin-bottom: var(--space-4);
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .lead {
    font-size: var(--text-xl);
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto var(--space-6);
    line-height: var(--leading-relaxed);
}

.hero .highlight {
    display: inline-block;
    background-color: var(--color-accent-light);
    color: var(--color-accent-dark);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--text-lg);
    margin-bottom: var(--space-6);
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
    flex-wrap: wrap;
}

.hero .btn-primary {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

.hero .btn-outline {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

.hero-trust {
    display: flex;
    justify-content: center;
    gap: var(--space-8);
    flex-wrap: wrap;
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border-light);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
}

.trust-item::before {
    content: "✓";
    color: var(--color-accent);
    font-weight: 700;
}

/* ========================================
   8. BUTTONS
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--text-base);
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition-normal);
}

.btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    text-decoration: none;
    color: white;
}

.btn-secondary {
    background-color: var(--color-accent);
    color: white;
    box-shadow: var(--shadow-accent);
}

.btn-secondary:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-2px);
    text-decoration: none;
    color: white;
}

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

.btn-outline:hover {
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
}

/* ========================================
   9. CATEGORIES SECTION
   ======================================== */

.categories {
    padding: var(--space-16) 0;
    background-color: var(--color-bg);
}

.categories h2 {
    text-align: center;
    margin-top: 0;
    margin-bottom: var(--space-10);
    border-bottom: none;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.category-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.category-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.category-card:hover::before {
    transform: scaleX(1);
}

.category-icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
}

.category-card h3 {
    font-size: var(--text-xl);
    margin-top: 0;
    margin-bottom: var(--space-2);
}

.category-card h3 a {
    color: var(--color-text);
    text-decoration: none;
}

.category-card h3 a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.category-meta {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-3);
}

.category-description {
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-4);
}

.category-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
    transition: gap var(--transition-fast);
}

.category-link:hover {
    gap: var(--space-3);
    text-decoration: none;
}

.category-link::after {
    content: "→";
}

/* ========================================
   10. ARTICLE CARDS
   ======================================== */

.articles {
    padding: var(--space-16) 0;
    background-color: var(--color-bg-alt);
}

.articles h2 {
    text-align: center;
    margin-top: 0;
    margin-bottom: var(--space-10);
    border-bottom: none;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-6);
}

.article-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
}

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

.article-card .badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-card h3 {
    font-size: var(--text-lg);
    margin-top: 0;
    margin-bottom: var(--space-3);
    line-height: var(--leading-tight);
}

.article-card h3 a {
    color: var(--color-text);
    text-decoration: none;
}

.article-card h3 a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.article-card .meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-3);
}

.article-card .meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.article-card p {
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    flex-grow: 1;
    margin-bottom: var(--space-4);
}

.article-card .read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
    margin-top: auto;
    transition: gap var(--transition-fast);
}

.article-card .read-more:hover {
    gap: var(--space-3);
    text-decoration: none;
}

/* ========================================
   11. ARTICLE CONTENT
   ======================================== */

.article-content {
    padding: var(--space-12) 0;
}

.article-header {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-border-light);
    z-index: 1;
    position: relative;
}

.article-header .badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-header h1 {
    margin-bottom: var(--space-4);
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.article-meta .author {
    font-weight: 500;
    color: var(--color-text-secondary);
}

.reading-time {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.article-body {
    line-height: var(--leading-relaxed);
}

.article-body p {
    margin-bottom: var(--space-5);
}

.article-body h2 {
    margin-top: var(--space-12);
}

.article-body h3 {
    margin-top: var(--space-8);
}

.article-body ul,
.article-body ol {
    margin-left: var(--space-6);
    margin-bottom: var(--space-5);
    padding-left: var(--space-4);
}

.article-body ul {
    list-style-type: disc;
}

.article-body ul ul {
    list-style-type: circle;
    margin-top: var(--space-2);
}

.article-body ol {
    list-style-type: decimal;
}

.article-body li {
    margin-bottom: var(--space-2);
    line-height: var(--leading-relaxed);
}

.article-body li strong {
    color: var(--color-text);
}

/* ========================================
   12. TABLES
   ======================================== */

table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-6) 0;
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

table thead {
    background-color: var(--color-primary);
    color: white;
}

table thead th {
    padding: var(--space-4);
    text-align: left;
    font-weight: 600;
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

table thead th:last-child {
    border-right: none;
}

table tbody tr {
    border-bottom: 1px solid var(--color-border-light);
    transition: background-color var(--transition-fast);
}

table tbody tr:nth-child(even) {
    background-color: var(--color-bg-alt);
}

table tbody tr:hover {
    background-color: var(--color-primary-50);
}

table tbody tr:last-child {
    border-bottom: none;
}

table tbody td {
    padding: var(--space-4);
    color: var(--color-text);
    border-right: 1px solid var(--color-border-light);
    vertical-align: top;
}

table tbody td:last-child {
    border-right: none;
}

table tbody td:first-child {
    font-weight: 500;
}

/* Table highlight row */
table tbody tr.highlight {
    background-color: var(--color-accent-light);
}

table tbody tr.highlight td {
    font-weight: 500;
}

/* ========================================
   13. TABLE OF CONTENTS (TOC)
   ======================================== */

.toc,
.table-of-contents,
nav.toc {
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin: var(--space-6) 0;
}

.toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    padding: var(--space-2) 0;
    user-select: none;
}

.toc-header strong {
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
}

.toc-toggle {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    transition: transform var(--transition-normal);
}

.toc-header[aria-expanded="false"] .toc-toggle {
    transform: rotate(-90deg);
}

.toc-content {
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border-light);
    margin-top: var(--space-3);
}

.toc-content ol,
.toc-content ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.toc-content li {
    margin-bottom: var(--space-2);
}

.toc-content a,
.toc-link-h2,
.toc-link-h3 {
    display: block;
    padding: var(--space-2) var(--space-3);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}

.toc-content a:hover,
.toc-link-h2:hover,
.toc-link-h3:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    text-decoration: none;
}

.toc-link-h3 {
    padding-left: var(--space-6);
    font-size: var(--text-xs);
}

/* ========================================
   14. CALLOUT BOXES
   ======================================== */

.callout {
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    margin: var(--space-6) 0;
    border-left: 4px solid;
}

.callout-info {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
}

.callout-success {
    background-color: var(--color-accent-light);
    border-color: var(--color-accent);
}

.callout-warning {
    background-color: var(--color-warning-light);
    border-color: var(--color-warning);
}

.callout-danger {
    background-color: var(--color-danger-light);
    border-color: var(--color-danger);
}

.callout-title {
    font-weight: 600;
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.callout p:last-child {
    margin-bottom: 0;
}

/* ========================================
   15. RELATED ARTICLES
   ======================================== */

.related-articles {
    background-color: var(--color-bg-alt);
    padding: var(--space-12) 0;
    margin-top: var(--space-12);
}

.related-articles h2 {
    margin-top: 0;
    margin-bottom: var(--space-8);
    text-align: center;
    border-bottom: none;
}

/* ========================================
   16. SIBLINGS SECTION
   ======================================== */

.siblings-section {
    background-color: var(--color-bg);
    padding: var(--space-8) 0;
    border-top: 1px solid var(--color-border);
}

.siblings-section h3 {
    font-size: var(--text-lg);
    margin-top: 0;
    margin-bottom: var(--space-5);
    color: var(--color-text-secondary);
}

.siblings-horizontal {
    display: flex;
    gap: var(--space-4);
    overflow-x: auto;
    padding: var(--space-2) 0;
    -webkit-overflow-scrolling: touch;
}

.sibling-card {
    flex: 0 0 280px;
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    transition: all var(--transition-fast);
}

.sibling-card:hover {
    border-color: var(--color-primary);
    background-color: var(--color-bg);
}

.sibling-card a {
    color: var(--color-text);
    font-weight: 500;
    text-decoration: none;
    display: block;
    line-height: var(--leading-normal);
}

.sibling-card a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

/* ========================================
   17. CATEGORY PAGE LAYOUT
   ======================================== */

.category-content {
    padding: var(--space-12) 0;
}

.content-with-sidebar {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-10);
}

.main-content h2 {
    margin-top: 0;
    margin-bottom: var(--space-8);
    border-bottom: none;
}

.category-articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-6);
}

/* Sidebar */
.sidebar {
    position: sticky;
    top: calc(var(--space-20) + var(--space-4));
    align-self: start;
}

.sidebar-section {
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.sidebar-section h3 {
    font-size: var(--text-base);
    margin-top: 0;
    margin-bottom: var(--space-4);
    color: var(--color-text);
}

.sidebar-categories {
    list-style: none;
}

.sidebar-categories li {
    margin-bottom: var(--space-2);
}

.sidebar-categories a {
    display: block;
    padding: var(--space-3);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-left: 3px solid var(--color-border);
    background-color: var(--color-bg);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    transition: all var(--transition-fast);
    font-size: var(--text-sm);
}

.sidebar-categories a:hover,
.sidebar-categories a[aria-current="page"] {
    border-left-color: var(--color-primary);
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
}

/* ========================================
   18. FOOTER
   ======================================== */

footer {
    background-color: var(--color-text);
    color: white;
    padding: var(--space-12) 0 var(--space-6);
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-10);
    margin-bottom: var(--space-10);
    padding-bottom: var(--space-10);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo-text {
    color: white;
    font-size: var(--text-xl);
    margin-bottom: var(--space-3);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
}

.footer-section h4 {
    color: white;
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--space-2);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: white;
    text-decoration: none;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--text-sm);
    margin: 0;
}

/* Simple footer (for article pages) */
footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

footer p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
    margin: 0;
}

footer nav ul {
    display: flex;
    list-style: none;
    gap: var(--space-6);
}

footer nav a {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
    text-decoration: none;
}

footer nav a:hover {
    color: white;
    text-decoration: none;
}

/* ========================================
   19. CTA SECTION (Inline)
   ======================================== */

.cta-inline {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    text-align: center;
    margin: var(--space-10) 0;
}

.cta-inline h3 {
    color: white;
    margin-top: 0;
    margin-bottom: var(--space-3);
}

.cta-inline p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-5);
}

.cta-inline .btn {
    background-color: white;
    color: var(--color-primary);
}

.cta-inline .btn:hover {
    background-color: var(--color-bg-alt);
    transform: translateY(-2px);
}

/* ========================================
   19b. HERO HOME (Premium)
   ======================================== */

.hero-home {
    background: url('hero-bg.png') center center / cover no-repeat;
    padding: var(--space-20) 0 var(--space-16);
    position: relative;
    overflow: hidden;
}

.hero-home::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.72) 0%, rgba(248, 250, 252, 0.68) 100%);
    z-index: 0;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background-color: var(--color-accent-light);
    color: var(--color-accent-dark);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--space-6);
}

.hero-badge svg {
    color: var(--color-accent);
}

.hero-home h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--space-5);
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.hero-home .lead {
    font-size: var(--text-xl);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-8);
}

.hero-home .lead strong {
    color: var(--color-accent-dark);
}

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

/* Button sizes */
.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
}

/* ========================================
   19c. TRUST BAND (Réassurance)
   ======================================== */

.trust-band {
    background-color: var(--color-text);
    padding: var(--space-5) 0;
}

.trust-items {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-10);
    flex-wrap: wrap;
}

.trust-band .trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: white;
}

.trust-band .trust-item::before {
    display: none;
}

.trust-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.trust-icon svg {
    color: var(--color-accent);
}

.trust-text {
    display: flex;
    flex-direction: column;
}

.trust-number {
    font-size: var(--text-lg);
    font-weight: 700;
    color: white;
}

.trust-label {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   19d. SECTION HEADERS
   ======================================== */

.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-header h2 {
    margin-top: 0;
    margin-bottom: var(--space-3);
    border-bottom: none;
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   19e. STATS SECTION
   ======================================== */

.stats-section {
    background-color: var(--color-primary-50);
    padding: var(--space-12) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    max-width: 900px;
    margin: 0 auto;
}

.stat-card {
    text-align: center;
    padding: var(--space-6);
    background-color: var(--color-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.stat-icon {
    width: 64px;
    height: 64px;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
}

.stat-icon svg {
    color: var(--color-primary);
}

.stat-number {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* ========================================
   19f. PROCESS SECTION
   ======================================== */

.process-section {
    background-color: var(--color-bg);
    padding: var(--space-16) 0;
}

.process-steps {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 0;
    max-width: 1000px;
    margin: 0 auto;
}

.process-step {
    flex: 1;
    text-align: center;
    padding: var(--space-4);
    position: relative;
}

.step-number {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 32px;
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: 700;
    box-shadow: var(--shadow-primary);
}

.step-icon {
    width: 72px;
    height: 72px;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--space-6) auto var(--space-4);
}

.step-icon svg {
    color: var(--color-primary);
}

.process-step h3 {
    font-size: var(--text-lg);
    margin-top: 0;
    margin-bottom: var(--space-2);
    color: var(--color-text);
}

.process-step p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: 0;
}

.process-connector {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    margin-top: calc(var(--space-6) + 36px);
    flex-shrink: 0;
}

/* ========================================
   19g. TESTIMONIALS SECTION
   ======================================== */

.testimonials-section {
    background-color: var(--color-bg-alt);
    padding: var(--space-16) 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.testimonial-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-normal);
}

.testimonial-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.testimonial-rating {
    margin-bottom: var(--space-4);
}

.testimonial-rating .star {
    color: #FBBF24;
    font-size: var(--text-xl);
}

.testimonial-quote {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin: 0 0 var(--space-5);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border-light);
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-sm);
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: var(--color-text);
}

.author-details {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.testimonials-footer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.google-rating {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.rating-score {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text);
}

.rating-count {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

/* ========================================
   19h. CTA FINAL SECTION
   ======================================== */

.cta-final {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--space-16) 0;
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-final h2 {
    color: white;
    font-size: var(--text-4xl);
    margin-top: 0;
    margin-bottom: var(--space-4);
    border-bottom: none;
}

.cta-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--text-lg);
    margin-bottom: var(--space-8);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-bottom: var(--space-8);
}

.btn-white {
    background-color: white;
    color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.btn-white:hover {
    background-color: var(--color-bg-alt);
    transform: translateY(-2px);
    text-decoration: none;
    color: var(--color-primary);
}

.btn-outline-white {
    background-color: transparent;
    border: 2px solid white;
    color: white;
}

.btn-outline-white:hover {
    background-color: white;
    color: var(--color-primary);
    text-decoration: none;
}

.cta-reassurance {
    display: flex;
    justify-content: center;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.cta-reassurance span {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--text-sm);
}

.cta-reassurance svg {
    color: var(--color-accent);
}

/* ========================================
   19i. FOOTER ENHANCEMENTS
   ======================================== */

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.footer-logo-img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-certifications {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
    margin-top: var(--space-4);
}

.certification-badge {
    display: inline-flex;
    padding: var(--space-2) var(--space-3);
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.footer-contact svg {
    flex-shrink: 0;
    color: var(--color-accent);
}

.footer-contact span {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
}

/* ========================================
   19j. ARTICLE HERO PREMIUM
   ======================================== */

.article-hero {
    position: relative;
    background: url('hero-bg.png') center center / cover no-repeat;
    padding: var(--space-8) 0 var(--space-12);
    color: white;
}

.article-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.85) 0%, rgba(30, 64, 175, 0.9) 100%);
    z-index: 1;
}

.article-hero > .container {
    position: relative;
    z-index: 2;
}

.breadcrumb-hero {
    margin-bottom: var(--space-6);
}

.breadcrumb-hero ol {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    list-style: none;
    margin: 0;
    padding: 0;
}

.breadcrumb-hero li {
    display: flex;
    align-items: center;
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
}

.breadcrumb-hero li:not(:last-child)::after {
    content: "/";
    margin-left: var(--space-2);
    opacity: 0.5;
}

.breadcrumb-hero a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
}

.breadcrumb-hero a:hover {
    color: white;
    text-decoration: underline;
}

.article-hero-content {
    max-width: 800px;
}

.article-category {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.article-hero h1 {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    color: white;
    margin: 0 0 var(--space-4);
    line-height: 1.2;
    text-shadow: 1px 1px 1px #00000082;
}

.article-excerpt {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.9);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
}

.article-meta-hero {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

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

.author-avatar-small {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-sm);
    color: white;
}

.author-info-small {
    display: flex;
    flex-direction: column;
}

.author-info-small .author-name {
    font-weight: 600;
    color: white;
}

.author-info-small .author-title {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.7);
}

.meta-separator {
    width: 1px;
    height: 30px;
    background-color: rgba(255, 255, 255, 0.3);
}

.meta-items {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.article-meta-hero .meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.9);
}

.article-meta-hero .meta-item svg {
    opacity: 0.8;
}

.article-meta-hero .meta-item.rating svg {
    opacity: 1;
}

/* ========================================
   19k. ARTICLE LAYOUT (Sidebar + Body)
   ======================================== */

.article-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-10);
    align-items: start;
}

.article-sidebar {
    position: sticky;
    top: 100px;
}

.toc-sticky {
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    border: 1px solid var(--color-border-light);
}

.toc-sticky .toc-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border-light);
}

.toc-sticky .toc-header svg {
    color: var(--color-primary);
}

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

.toc-list li {
    margin-bottom: var(--space-2);
}

.toc-link {
    display: block;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-left: 2px solid transparent;
}

.toc-link:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
}

.toc-link.active {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    font-weight: 500;
}

.toc-cta {
    margin-top: var(--space-5);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border-light);
}

.toc-cta .btn {
    width: 100%;
    justify-content: center;
}

/* ========================================
   19l. ARTICLE BODY PREMIUM COMPONENTS
   ======================================== */

.intro-box {
    background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-bg-alt) 100%);
    border-left: 4px solid var(--color-primary);
    padding: var(--space-6);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    margin-bottom: var(--space-8);
}

.intro-box p {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    margin: 0;
    color: var(--color-text);
}

/* Feature List */
.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin: var(--space-5) 0;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
}

.feature-icon {
    width: 40px;
    height: 40px;
    background-color: var(--color-accent-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon svg {
    color: var(--color-accent);
}

.feature-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.feature-content strong {
    color: var(--color-text);
}

.feature-content span {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* Pros/Cons Grid */
.pros-cons-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
    margin: var(--space-6) 0;
}

.pros-box,
.cons-box {
    padding: var(--space-5);
    border-radius: var(--radius-xl);
}

.pros-box {
    background-color: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.cons-box {
    background-color: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.pros-box h3,
.cons-box h3 {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-lg);
    margin: 0 0 var(--space-4);
}

.pros-box h3 {
    color: var(--color-accent-dark);
}

.cons-box h3 {
    color: #DC2626;
}

.pros-box h3 svg {
    color: var(--color-accent);
}

.cons-box h3 svg {
    color: #EF4444;
}

.pros-box ul,
.cons-box ul {
    margin: 0;
    padding-left: var(--space-4);
}

.pros-box li,
.cons-box li {
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
}

/* Cards Grid 3 */
.cards-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
    margin: var(--space-6) 0;
}

.info-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    text-align: center;
    transition: all var(--transition-normal);
}

.info-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.info-card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-3);
}

.info-card h3 {
    font-size: var(--text-lg);
    margin: 0 0 var(--space-2);
    color: var(--color-text);
}

.info-card p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin: 0;
    line-height: var(--leading-relaxed);
}

/* Steps List */
.steps-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin: var(--space-6) 0;
}

.step-item {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-4);
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
}

.steps-list .step-number {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-sm);
    flex-shrink: 0;
    position: static;
    transform: none;
    box-shadow: var(--shadow-primary);
}

.step-content {
    flex: 1;
}

.step-content strong {
    display: block;
    color: var(--color-text);
    margin-bottom: var(--space-1);
}

.step-content p {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* Price Table */
.price-table {
    margin: var(--space-6) 0;
}

.price-table .table-note {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    font-weight: 400;
    margin-top: var(--space-1);
}

.price-table .price-cell {
    font-weight: 700;
    color: var(--color-primary);
    font-size: var(--text-lg);
    white-space: nowrap;
}

/* Info Callout */
.info-callout {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-5);
    background: linear-gradient(135deg, var(--color-primary-50) 0%, rgba(37, 99, 235, 0.05) 100%);
    border: 1px solid var(--color-primary-light);
    border-radius: var(--radius-xl);
    margin: var(--space-6) 0;
}

.callout-icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.callout-icon svg {
    color: white;
}

.callout-content strong {
    display: block;
    color: var(--color-primary-dark);
    margin-bottom: var(--space-2);
}

.callout-content p {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

/* Article CTA */
.article-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    margin: var(--space-10) 0;
    text-align: center;
}

.article-cta-content h3 {
    color: white;
    font-size: var(--text-2xl);
    margin: 0 0 var(--space-3);
}

.article-cta-content p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 var(--space-6);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.article-cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* Related Section */
.related-section {
    background-color: var(--color-bg-alt);
    padding: var(--space-12) 0;
}

/* ========================================
   20. RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1024px) {
    .content-with-sidebar {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    /* Article layout tablet */
    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
        order: -1;
        margin-bottom: var(--space-6);
    }

    .toc-sticky {
        max-width: 400px;
    }

    .cards-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --text-4xl: 2rem;
        --text-5xl: 2.5rem;
    }

    h1 {
        font-size: var(--text-3xl);
    }

    h2 {
        font-size: var(--text-xl);
    }

    .container {
        padding: 0 var(--space-4);
    }

    /* Header mobile */
    header nav .container {
        gap: var(--space-2);
    }

    .logo-text {
        display: none;
    }

    .logo-img {
        height: 32px;
    }

    .btn-devis {
        display: none;
    }

    .phone-number {
        display: none;
    }

    .phone-btn {
        padding: var(--space-2);
        min-width: 44px;
        min-height: 44px;
        justify-content: center;
        border-radius: var(--radius-full);
    }

    /* Hero mobile */
    .hero {
        padding: var(--space-10) 0;
    }

    .hero h1 {
        font-size: var(--text-3xl);
    }

    .hero .lead {
        font-size: var(--text-base);
    }

    .hero-ctas {
        flex-direction: column;
        align-items: center;
    }

    .hero-trust {
        flex-direction: column;
        gap: var(--space-3);
    }

    /* Hero home mobile */
    .hero-home {
        padding: var(--space-12) 0 var(--space-10);
    }

    .hero-home .lead {
        font-size: var(--text-base);
    }

    .btn-lg {
        padding: var(--space-3) var(--space-6);
        font-size: var(--text-base);
        width: 100%;
        max-width: 280px;
    }

    /* Trust band mobile */
    .trust-band {
        padding: var(--space-6) 0;
    }

    .trust-items {
        gap: var(--space-4);
    }

    .trust-band .trust-item {
        flex: 0 0 calc(50% - var(--space-4));
        text-align: center;
        flex-direction: column;
    }

    .trust-icon {
        width: 40px;
        height: 40px;
    }

    .trust-number {
        font-size: var(--text-base);
    }

    .trust-label {
        font-size: var(--text-xs);
    }

    /* Stats section mobile */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    .stat-card {
        display: flex;
        align-items: center;
        text-align: left;
        gap: var(--space-4);
    }

    .stat-icon {
        margin: 0;
        flex-shrink: 0;
    }

    .stat-number {
        font-size: var(--text-2xl);
    }

    /* Process section mobile */
    .process-steps {
        flex-direction: column;
        align-items: stretch;
    }

    .process-connector {
        width: 2px;
        height: 40px;
        margin: 0 auto;
    }

    .process-step {
        padding: var(--space-4) 0;
    }

    .step-number {
        position: static;
        transform: none;
        margin: 0 auto var(--space-3);
    }

    .step-icon {
        margin: var(--space-3) auto;
    }

    /* Testimonials mobile */
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-footer {
        flex-direction: column;
        gap: var(--space-4);
    }

    /* CTA final mobile */
    .cta-final {
        padding: var(--space-10) 0;
    }

    .cta-final h2 {
        font-size: var(--text-2xl);
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-buttons .btn {
        width: 100%;
        max-width: 280px;
    }

    .cta-reassurance {
        flex-direction: column;
        gap: var(--space-3);
    }

    /* Grids mobile */
    .categories-grid,
    .articles-grid,
    .category-articles-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    /* Tables mobile */
    table {
        font-size: var(--text-sm);
    }

    table thead th,
    table tbody td {
        padding: var(--space-3);
    }

    /* Footer mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .footer-brand {
        text-align: center;
        max-width: none;
    }

    .footer-logo {
        justify-content: center;
    }

    .footer-certifications {
        justify-content: center;
    }

    .footer-contact li {
        justify-content: center;
    }

    footer .container {
        flex-direction: column;
        text-align: center;
    }

    footer nav ul {
        flex-direction: column;
        gap: var(--space-2);
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    /* Article hero mobile */
    .article-hero {
        padding: var(--space-6) 0 var(--space-8);
    }

    .article-meta-hero {
        flex-direction: column;
        align-items: flex-start;
    }

    .meta-separator {
        display: none;
    }

    .meta-items {
        flex-direction: column;
        gap: var(--space-2);
    }

    /* Article components mobile */
    .pros-cons-grid {
        grid-template-columns: 1fr;
    }

    .cards-grid-3 {
        grid-template-columns: 1fr;
    }

    .info-callout {
        flex-direction: column;
    }

    .callout-icon {
        width: 40px;
        height: 40px;
    }

    .article-cta {
        padding: var(--space-6);
    }

    .article-cta-content h3 {
        font-size: var(--text-xl);
    }

    .article-cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .article-cta-buttons .btn {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 480px) {
    .article-meta {
        flex-direction: column;
        gap: var(--space-2);
    }

    .siblings-horizontal {
        gap: var(--space-3);
    }

    .sibling-card {
        flex: 0 0 240px;
    }
}

/* ========================================
   21. PRINT STYLES
   ======================================== */

@media print {
    header,
    footer,
    .breadcrumb,
    .related-articles,
    .siblings-section,
    .toc,
    .cta-inline {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
    }

    a {
        color: #000;
        text-decoration: underline;
    }

    h1, h2, h3 {
        page-break-after: avoid;
    }

    table {
        page-break-inside: avoid;
    }
}

/* ========================================
   22. UTILITY CLASSES
   ======================================== */

/* Display */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

/* Flex */
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* Spacing */
.mt-0 { margin-top: 0 !important; }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-0 { margin-bottom: 0 !important; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }

/* Text */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }
.text-sm { font-size: var(--text-sm); }
.text-lg { font-size: var(--text-lg); }
.font-bold { font-weight: 700; }

/* Background */
.bg-alt { background-color: var(--color-bg-alt); }
.bg-primary-light { background-color: var(--color-primary-light); }
.bg-accent-light { background-color: var(--color-accent-light); }

/* Border */
.border { border: 1px solid var(--color-border); }
.rounded { border-radius: var(--radius-lg); }
.shadow { box-shadow: var(--shadow-md); }

/* Width */
.w-full { width: 100%; }
.max-w-content { max-width: var(--max-width-content); }

/* Blog link (added for /blog standard) */
.header-blog-link {
    display: inline-flex;
    align-items: center;
    font-weight: 600;
    padding: 0.5rem 0.75rem;
    border-radius: 10px;
    background: rgba(14, 165, 233, 0.10);
    color: var(--color-text);
}

.header-blog-link:hover {
    background: rgba(14, 165, 233, 0.18);
    color: var(--color-primary);
}