/* ================================
   BAUHAUS DESIGN SYSTEM
   ================================ */

:root {
    /* Palette Bauhaus - Couleurs primaires */
    --primary-red: #E1251B;
    --primary-blue: #004C97;
    --primary-yellow: #FFD100;
    --black: #1a1a1a;
    --white: #FAFAFA;
    --grey-light: #E8E8E8;
    --grey-mid: #BDBDBD;

    /* Typographie */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Futura', 'Century Gothic', sans-serif;

    /* Espacements géométriques */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
}

/* ================================
   RESET & BASE
   ================================ */

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

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

body {
    font-family: var(--font-primary);
    color: var(--black);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 3px solid var(--black);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-sm) var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--black);
    text-decoration: none;
    letter-spacing: -0.05em;
    position: relative;
}

.logo::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-red);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.logo:hover::before {
    transform: scaleX(1);
}

.nav-links {
    display: flex;
    gap: var(--space-md);
    list-style: none;
}

.nav-links a {
    color: var(--black);
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    padding: var(--space-xs) var(--space-sm);
    position: relative;
    transition: color 0.3s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--space-sm);
    right: var(--space-sm);
    height: 2px;
    background: var(--primary-blue);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    transform: scaleX(1);
}

.nav-links a.active {
    color: var(--primary-blue);
}

/* ================================
   CONTAINER
   ================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: calc(60px + var(--space-lg)) var(--space-md) var(--space-lg);
}

/* ================================
   HERO SECTION
   ================================ */

.hero {
    min-height: 40vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding: var(--space-lg) 0;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.hero-image-container {
    flex-shrink: 0;
}

.hero-image {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border: 4px solid var(--black);
    position: relative;
    box-shadow: 12px 12px 0 var(--primary-red);
}

.hero-text {
    flex: 1;
}

.geometric-shape {
    position: absolute;
    z-index: -1;
}

.shape-1 {
    width: 200px;
    height: 200px;
    background: var(--primary-red);
    top: 10%;
    right: 10%;
    clip-path: circle(50%);
    opacity: 0.8;
}

.shape-2 {
    width: 150px;
    height: 150px;
    background: var(--primary-yellow);
    bottom: 20%;
    left: 5%;
    opacity: 0.6;
}

.shape-3 {
    width: 100px;
    height: 100px;
    background: var(--primary-blue);
    top: 50%;
    left: 15%;
    transform: rotate(45deg);
    opacity: 0.7;
}

.hero-title {
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-md);
}

.title-line {
    display: block;
}

.title-line.accent {
    color: var(--primary-blue);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--grey-mid);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 600;
    margin-left: 4px;
}

/* ================================
   INTRO BLOCKS
   ================================ */

.intro {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.intro-block {
    background: var(--white);
    padding: var(--space-md);
    border: 2px solid var(--black);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.intro-block:hover {
    transform: translate(-4px, -4px);
    box-shadow: 8px 8px 0 var(--black);
}

.intro-block:nth-child(1) .block-number {
    background: var(--primary-red);
}

.intro-block:nth-child(2) .block-number {
    background: var(--primary-blue);
}

.intro-block:nth-child(3) .block-number {
    background: var(--primary-yellow);
}

.block-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.block-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 900;
    font-size: 1.125rem;
}

.intro-block h2 {
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.intro-block p {
    line-height: 1.7;
    color: var(--black);
}

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

.page-header {
    margin-bottom: var(--space-xl);
}

.cv-header-content {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.cv-photo {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border: 3px solid var(--black);
    box-shadow: 8px 8px 0 var(--primary-blue);
}

.page-header h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
}

.accent-bar {
    width: 120px;
    height: 6px;
    background: var(--primary-red);
    margin-bottom: var(--space-sm);
}

.page-subtitle {
    font-size: 1.125rem;
    color: var(--grey-mid);
    margin-top: var(--space-sm);
}

/* ================================
   PUBLICATIONS SECTION
   ================================ */

.publications {
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 3px solid var(--black);
}

.section-header {
    margin-bottom: var(--space-lg);
}

.section-title-large {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
}

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

.publication-card {
    background: var(--white);
    border: 3px solid var(--black);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.publication-card:hover {
    transform: translate(-6px, -6px);
    box-shadow: 10px 10px 0 var(--black);
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    background: var(--black);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.podcast-card {
    background: var(--primary-yellow);
    position: relative;
}

.podcast-card::before {
    content: '';
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 80px;
    height: 80px;
    background: var(--primary-red);
    clip-path: circle(50%);
    opacity: 0.3;
}

.publication-info {
    padding: var(--space-md);
    flex: 1;
}

.video-card .publication-info {
    border-top: 3px solid var(--black);
}

.publication-type {
    display: inline-block;
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.podcast-card .publication-type {
    background: var(--black);
}

.publication-info h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.publication-meta {
    font-size: 0.875rem;
    color: var(--grey-mid);
    margin-bottom: var(--space-sm);
}

.publication-link {
    display: inline-block;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    transition: transform 0.3s ease;
}

.publication-link:hover {
    transform: translateX(4px);
}

.podcast-card .publication-link {
    color: var(--black);
}

.podcast-card .publication-info h3 {
    color: var(--black);
}

.podcast-card .publication-meta {
    color: var(--black);
    opacity: 0.7;
}

/* ================================
   TOOLS SECTION
   ================================ */

.tools-section {
    margin-top: var(--space-xl);
    margin-bottom: var(--space-xl);
}

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

.tool-card {
    background: var(--primary-yellow);
    border: 4px solid var(--black);
    padding: var(--space-lg);
    text-decoration: none;
    color: var(--black);
    transition: all 0.3s ease;
    display: block;
    position: relative;
}

.tool-card:hover {
    transform: translate(-4px, -4px);
    box-shadow: 8px 8px 0 var(--primary-red);
}

.tool-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.tool-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.tool-card p {
    color: var(--black);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.tool-cta {
    display: inline-block;
    background: var(--primary-red);
    color: var(--white);
    padding: var(--space-sm) var(--space-md);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.875rem;
    border: 2px solid var(--black);
    transition: transform 0.3s ease;
}

.tool-card:hover .tool-cta {
    transform: translateX(4px);
}

/* ================================
   CV PAGE
   ================================ */

.cv-section {
    margin-bottom: var(--space-xl);
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 2px solid var(--grey-light);
}

.cv-section:last-child {
    border-bottom: none;
}

.section-title {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.section-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--grey-light);
    line-height: 1;
}

.section-title h2 {
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
}

.cv-item {
    margin-bottom: var(--space-md);
    padding-left: var(--space-md);
    border-left: 3px solid var(--primary-blue);
}

.cv-item-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--space-xs);
}

.cv-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
}

.cv-date {
    font-size: 0.875rem;
    color: var(--grey-mid);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.cv-company {
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.cv-list {
    list-style: none;
    margin-top: var(--space-sm);
}

.cv-list li {
    padding-left: var(--space-md);
    position: relative;
    margin-bottom: var(--space-xs);
}

.cv-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 8px;
    height: 8px;
    background: var(--primary-red);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

.skill-category h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--primary-blue);
    text-transform: uppercase;
}

/* ================================
   BLOG PAGE
   ================================ */

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-md);
}

.blog-card {
    background: var(--white);
    border: 2px solid var(--black);
    padding: var(--space-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.blog-card:hover {
    transform: translate(-4px, -4px);
    box-shadow: 8px 8px 0 var(--black);
}

.blog-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.blog-category {
    background: var(--primary-red);
    color: var(--white);
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.blog-date {
    font-size: 0.875rem;
    color: var(--grey-mid);
    font-weight: 600;
}

.blog-title {
    font-size: 1.375rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--space-sm);
}

.blog-excerpt {
    color: var(--black);
    line-height: 1.6;
    margin-bottom: var(--space-sm);
}

.blog-link {
    display: inline-block;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    transition: transform 0.3s ease;
}

.blog-link:hover {
    transform: translateX(4px);
}

/* ================================
   ARTICLE PAGE
   ================================ */

.article-page {
    max-width: 800px;
}

.article {
    background: var(--white);
}

.article-header {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 3px solid var(--black);
}

.article-meta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.article-category {
    background: var(--primary-red);
    color: var(--white);
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.article-date {
    color: var(--grey-mid);
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.article-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-sm);
}

.article-subtitle {
    font-size: 1.25rem;
    color: var(--grey-mid);
    margin-bottom: var(--space-md);
    line-height: 1.4;
}

.article-content {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--black);
}

.article-section {
    margin-bottom: var(--space-lg);
}

.article-section h2 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    margin-top: var(--space-lg);
    position: relative;
    padding-left: var(--space-sm);
}

.article-section h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary-blue);
}

.article-section h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    margin-top: var(--space-md);
}

.article-section p {
    margin-bottom: var(--space-md);
}

.article-section ul,
.article-section ol {
    margin-bottom: var(--space-md);
    margin-left: var(--space-lg);
}

.article-section li {
    margin-bottom: var(--space-sm);
}

.article-section strong {
    color: var(--black);
    font-weight: 700;
}

.article-section em {
    font-style: italic;
    color: var(--primary-blue);
}

.highlight-box {
    background: var(--grey-light);
    border: 3px solid var(--black);
    padding: var(--space-md);
    margin: var(--space-lg) 0;
}

.highlight-box.warning {
    background: var(--primary-yellow);
}

.highlight-box h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    margin-top: 0;
}

.highlight-box ul,
.highlight-box ol {
    margin-left: var(--space-md);
    margin-bottom: 0;
}

.article-footer {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 3px solid var(--black);
}

.author-bio {
    display: flex;
    gap: var(--space-md);
    align-items: center;
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: var(--grey-light);
    border: 2px solid var(--black);
}

.author-photo {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border: 2px solid var(--black);
    flex-shrink: 0;
}

.author-info h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.author-info p {
    font-size: 0.875rem;
    color: var(--black);
    margin-bottom: var(--space-sm);
}

.author-links {
    display: flex;
    gap: var(--space-md);
}

.author-links a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.875rem;
}

.back-link {
    display: inline-block;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    transition: transform 0.3s ease;
}

.back-link:hover {
    transform: translateX(-4px);
}

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

.footer {
    border-top: 3px solid var(--black);
    padding: var(--space-md);
    text-align: center;
    margin-top: var(--space-xl);
}

.footer p {
    font-size: 0.875rem;
    color: var(--grey-mid);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* ================================
   RESPONSIVE
   ================================ */

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: var(--space-sm);
        padding: var(--space-sm);
    }

    .nav-links {
        gap: var(--space-sm);
    }

    .nav-links a {
        font-size: 0.75rem;
        padding: var(--space-xs);
    }

    .container {
        padding: calc(120px + var(--space-md)) var(--space-sm) var(--space-md);
    }

    .hero {
        min-height: 50vh;
    }

    .hero-content {
        flex-direction: column;
        gap: var(--space-md);
    }

    .hero-image {
        width: 150px;
        height: 150px;
    }

    .cv-header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .cv-photo {
        width: 100px;
        height: 100px;
    }

    .shape-1, .shape-2, .shape-3 {
        opacity: 0.3;
    }

    .intro {
        grid-template-columns: 1fr;
    }

    .cv-section {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

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

    .cv-item-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .publications-grid {
        grid-template-columns: 1fr;
    }

    .podcast-card::before {
        width: 60px;
        height: 60px;
    }
}