/* ====================================
   WHIPBRICK - STYLE MINIMALISTE
   Inspiré du design Figma noir/blanc
   ==================================== */

/* RESET & BASE */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray: #F5F5F5;
    --color-gray-dark: #666666;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

body {
    font-family: var(--font-main);
    color: var(--color-black);
    background: var(--color-white);
    line-height: 1.6;
    font-size: 16px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* NAVIGATION */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray);
    padding: 1rem 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1.2rem;
}

.nav-logo img {
    height: 32px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--color-black);
    font-weight: 400;
    transition: opacity 0.3s;
}

.nav-menu a:hover {
    opacity: 0.6;
}

.btn-contact {
    background: var(--color-black);
    color: var(--color-white) !important;
    padding: 0.5rem 1.5rem;
    border-radius: 4px;
}

/* HERO */
.hero {
    margin-top: 80px;
    padding: var(--spacing-xl) 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.hero-title .highlight {
    position: relative;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray-dark);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: #333;
}

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

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

.btn-secondary {
    background: var(--color-gray);
    color: var(--color-black);
}

/* VALUE PROPOSITION */
.value-proposition {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.value-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
}

.value-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.value-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.value-card p {
    color: var(--color-gray-dark);
    margin-bottom: 1rem;
}

.value-list {
    list-style: none;
}

.value-list li {
    padding: 0.25rem 0;
    color: var(--color-gray-dark);
}

/* SERVICES */
.services {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.service-block {
    margin-bottom: var(--spacing-lg);
    padding: 2rem;
    border: 1px solid var(--color-gray);
    border-radius: 8px;
}

.service-block h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.service-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.service-item {
    padding: 0.5rem 0;
}

.badge {
    background: var(--color-black);
    color: var(--color-white);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    margin-left: 0.5rem;
}

/* REASSURANCE */
.reassurance {
    padding: var(--spacing-lg) 0;
    background: var(--color-black);
    color: var(--color-white);
}

.reassurance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.reassurance-number {
    font-size: 3rem;
    font-weight: 700;
}

.reassurance-label {
    font-size: 1rem;
    opacity: 0.8;
}

/* EXPERTISE */
.expertise {
    padding: var(--spacing-xl) 0;
}

.expertise-intro {
    text-align: center;
    font-size: 1.25rem;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    color: var(--color-gray-dark);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.expertise-category {
    padding: 1.5rem;
    background: var(--color-gray);
    border-radius: 8px;
}

.expertise-category h4 {
    margin-bottom: 0.5rem;
}

.expertise-category p {
    color: var(--color-gray-dark);
}

.expertise .btn {
    display: block;
    width: fit-content;
    margin: 0 auto;
}

/* CONTACT */
.contact {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.contact-content {
    text-align: center;
}

.contact-content p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.contact-content .btn {
    margin: 0 0.5rem;
}

/* FOOTER */
.footer {
    padding: 2rem 0;
    background: var(--color-black);
    color: var(--color-white);
    text-align: center;
}

.footer-links {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
}

.footer-links a {
    color: var(--color-white);
    text-decoration: none;
    opacity: 0.7;
}

.footer-links a:hover {
    opacity: 1;
}

/* REGULATORY CONTEXT */
.regulatory-context {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.context-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.context-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
}

.context-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.context-card h3 {
    margin-bottom: 1rem;
}

/* APPROACH */
.approach {
    padding: var(--spacing-xl) 0;
}

.approach-step {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    padding: 2rem;
    border: 1px solid var(--color-gray);
    border-radius: 8px;
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--color-black);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step-content h3 {
    margin-bottom: 1rem;
}

.approach-list {
    list-style: none;
    padding-left: 0;
}

.approach-list li {
    padding: 0.25rem 0;
    color: var(--color-gray-dark);
}

/* TOOLS SECTION */
.tools-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.tool-highlight {
    background: var(--color-white);
    padding: 3rem;
    border-radius: 8px;
    margin-bottom: 3rem;
}

.tool-tagline {
    font-size: 1.25rem;
    font-style: italic;
    text-align: center;
    margin: 2rem 0;
    color: var(--color-gray-dark);
}

.tool-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-box {
    padding: 2rem;
    border: 2px solid var(--color-gray);
    border-radius: 8px;
}

.feature-box h4 {
    margin-bottom: 1rem;
}

.feature-box ul {
    list-style: none;
    padding: 0;
    margin-bottom: 1.5rem;
}

.feature-box li {
    padding: 0.25rem 0;
    color: var(--color-gray-dark);
}

.highlight-box {
    border-color: var(--color-black);
    background: var(--color-gray);
}

.other-tools {
    margin-top: 3rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.tool-card {
    background: var(--color-white);
    padding: 1.5rem;
    border-radius: 8px;
}

.tool-card h4 {
    margin-bottom: 0.5rem;
}

/* CASE STUDIES */
.case-studies {
    padding: var(--spacing-xl) 0;
}

.case-study {
    margin-bottom: 3rem;
    padding: 2rem;
    border-left: 4px solid var(--color-black);
    background: var(--color-gray);
}

.case-tag {
    display: inline-block;
    background: var(--color-black);
    color: var(--color-white);
    padding: 0.25rem 1rem;
    border-radius: 4px;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.case-study h3 {
    margin-bottom: 1rem;
}

.case-description {
    color: var(--color-gray-dark);
    margin-bottom: 1.5rem;
}

.case-results {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.result-item {
    padding: 1rem;
    background: var(--color-white);
    border-radius: 4px;
}

.result-item strong {
    display: block;
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

/* FINAL CTA */
.final-cta {
    padding: var(--spacing-xl) 0;
    background: var(--color-black);
    color: var(--color-white);
    text-align: center;
}

.final-cta h2 {
    margin-bottom: 1rem;
}

.final-cta p {
    margin-bottom: 2rem;
    opacity: 0.8;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* BIO PAGE */
.hero-bio {
    min-height: 60vh;
}

.bio-header {
    text-align: center;
}

.bio-tagline {
    font-size: 1.5rem;
    font-weight: 500;
}

.value-distinctive {
    padding: var(--spacing-lg) 0;
    background: var(--color-gray);
}

.intro-text {
    max-width: 900px;
    margin: 0 auto 1.5rem;
    font-size: 1.125rem;
    text-align: center;
    line-height: 1.8;
}

.distinctive-value {
    padding: var(--spacing-xl) 0;
}

.value-grid-bio {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.value-bio-card {
    padding: 2rem;
    background: var(--color-gray);
    border-radius: 8px;
}

.value-bio-card h3 {
    margin-bottom: 1rem;
}

/* TIMELINE */
.career-path {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.timeline {
    max-width: 900px;
    margin: 0 auto;
}

.timeline-item {
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--color-white);
    border-radius: 8px;
    border-left: 4px solid var(--color-black);
}

.timeline-date {
    font-weight: 600;
    color: var(--color-gray-dark);
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    margin-bottom: 0.5rem;
}

.timeline-company {
    color: var(--color-gray-dark);
    margin-bottom: 1rem;
}

.timeline-description {
    margin-bottom: 1.5rem;
}

.mission-highlight, .responsibilities, .results-section {
    margin-top: 1.5rem;
}

.mission-highlight h4, .responsibilities h4, .results-section h4 {
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.mission-item {
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--color-gray);
    border-radius: 4px;
}

.mission-item strong {
    display: block;
    margin-bottom: 0.25rem;
}

.mission-item p {
    color: var(--color-gray-dark);
}

.responsibilities ul {
    list-style: disc;
    padding-left: 1.5rem;
}

.responsibilities li {
    margin-bottom: 0.5rem;
    color: var(--color-gray-dark);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.result-box {
    background: var(--color-gray);
    padding: 1rem;
    border-radius: 4px;
    text-align: center;
    font-weight: 600;
}

.tech-stack {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-gray);
    font-size: 0.875rem;
    color: var(--color-gray-dark);
}

/* SKILLS */
.technical-skills {
    padding: var(--spacing-xl) 0;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    padding: 2rem;
    background: var(--color-gray);
    border-radius: 8px;
}

.skill-category h3 {
    margin-bottom: 1rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    display: inline-block;
    background: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.875rem;
}

/* SECTORS */
.sectors {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.sectors-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.sector-badge {
    background: var(--color-white);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    border: 1px solid var(--color-black);
    font-weight: 500;
}

/* SERVICES DETAIL */
.services-complete {
    padding: var(--spacing-xl) 0;
}

.service-detail {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    padding: 2rem;
    border: 1px solid var(--color-gray);
    border-radius: 8px;
}

.service-icon {
    font-size: 3rem;
    flex-shrink: 0;
    min-width: 60px;
    text-align: center;
}

.service-detail h3 {
    margin-bottom: 0.5rem;
}

.service-intro {
    color: var(--color-gray-dark);
    margin-bottom: 1rem;
}

.service-deliverables {
    margin-top: 1rem;
}

.service-deliverables h4 {
    margin-bottom: 0.5rem;
}

.service-deliverables ul {
    list-style: disc;
    padding-left: 1.5rem;
}

.service-deliverables li {
    margin-bottom: 0.25rem;
    color: var(--color-gray-dark);
}

.service-example {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--color-gray);
    border-radius: 4px;
    font-size: 0.9rem;
}

/* METHODOLOGY */
.methodology {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.methodology-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.method-step {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
}

.method-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    background: var(--color-black);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-bottom: 1rem;
}

.method-step h3 {
    margin-bottom: 0.5rem;
}

.method-step p {
    color: var(--color-gray-dark);
}

/* TECHNOLOGIES */
.technologies {
    padding: var(--spacing-xl) 0;
}

.tech-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tech-category {
    padding: 2rem;
    background: var(--color-gray);
    border-radius: 8px;
}

.tech-category h3 {
    margin-bottom: 1rem;
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-badge {
    display: inline-block;
    background: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.875rem;
    border: 1px solid var(--color-gray);
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav-menu {
        display: none; /* À améliorer avec menu mobile */
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .approach-step {
        flex-direction: column;
    }
    
    .service-detail {
        flex-direction: column;
        text-align: center;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
}

/* NOTRE SOLUTION */
.our-solution {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.solution-intro {
    text-align: center;
    font-size: 1.25rem;
    color: var(--color-gray-dark);
    margin-bottom: var(--spacing-lg);
}

.solution-diagram {
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
}

.diagram-img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.solution-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.solution-step {
    text-align: center;
    padding: 1.5rem;
    background: var(--color-gray);
    border-radius: 8px;
    transition: transform 0.3s;
}

.solution-step:hover {
    transform: translateY(-5px);
}

.solution-step h3 {
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.solution-step p {
    font-size: 0.875rem;
    color: var(--color-gray-dark);
}

/* CHALLENGE SECTION */
.challenge-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.section-intro {
    text-align: center;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-gray-dark);
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.challenge-card {
    background: var(--color-white);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 3px solid var(--color-black);
}

.challenge-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.challenge-card p {
    color: var(--color-gray-dark);
    font-size: 0.875rem;
}

/* SOLUTION EXPLANATION */
.solution-explanation {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.solution-explanation h3 {
    margin-bottom: var(--spacing-md);
}

.journey-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    max-width: 1100px;
    margin: 0 auto;
}

.journey-step {
    background: var(--color-gray);
    padding: 1.5rem 1rem;
    border-radius: 8px;
    text-align: center;
}

.step-icon {
    width: 40px;
    height: 40px;
    background: var(--color-black);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.journey-step h4 {
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.journey-step p {
    font-size: 0.75rem;
    color: var(--color-gray-dark);
}

/* OUR APPROACH */
.our-approach {
    padding: var(--spacing-xl) 0;
}

.approach-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: var(--spacing-lg);
}

.approach-item {
    background: var(--color-gray);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
}

.approach-item h3 {
    margin-bottom: 0.5rem;
}

.approach-item p {
    color: var(--color-gray-dark);
}

.data-journey-impact {
    background: var(--color-black);
    color: var(--color-white);
    padding: 3rem;
    border-radius: 8px;
    text-align: center;
}

.data-journey-impact h3 {
    margin-bottom: 2rem;
}

.impact-timeline {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.impact-step {
    background: var(--color-white);
    color: var(--color-black);
    padding: 1rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
}

.impact-arrow {
    font-size: 1.5rem;
    font-weight: 700;
}

/* CASE STUDIES DETAILED */
.case-studies-detailed {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.detailed-case {
    background: var(--color-white);
    padding: 3rem;
    border-radius: 8px;
    margin-bottom: 3rem;
    position: relative;
}

.case-number {
    position: absolute;
    top: -20px;
    left: 3rem;
    width: 60px;
    height: 60px;
    background: var(--color-black);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.detailed-case > h3 {
    margin-bottom: 2rem;
    padding-top: 1rem;
}

.case-content {
    display: grid;
    gap: 2rem;
}

.case-problem, .case-challenges, .case-solution, .case-benefits {
    padding: 1.5rem;
    background: var(--color-gray);
    border-radius: 4px;
}

.case-problem h4, .case-challenges h4, .case-solution h4, .case-benefits h4 {
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.case-challenges ul, .case-solution ul {
    list-style: disc;
    padding-left: 1.5rem;
}

.case-challenges li, .case-solution li {
    margin-bottom: 0.5rem;
    color: var(--color-gray-dark);
}

.solution-tech {
    margin-bottom: 1rem;
}

.tech-badge {
    display: inline-block;
    background: var(--color-black);
    color: var(--color-white);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    margin-right: 0.5rem;
}

.solution-steps-inline {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.solution-steps-inline span:not(:last-child):not(.arrow) {
    background: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-weight: 600;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
}

.benefit {
    background: var(--color-white);
    padding: 0.75rem;
    border-radius: 4px;
    font-size: 0.875rem;
}

/* ====================================
   FAQ SECTION
   ==================================== */
.faq-section {
    padding: var(--spacing-xl) 0;
}

.faq-section.bg-gray {
    background: var(--color-gray);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-white);
    border: 1px solid var(--color-gray);
    border-radius: 8px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-main);
    font-size: 1.125rem;
    font-weight: 600;
    text-align: left;
    color: var(--color-black);
    transition: background 0.3s;
}

.faq-question:hover {
    background: var(--color-gray);
}

.faq-question .faq-toggle {
    font-size: 1.5rem;
    transition: transform 0.3s;
    flex-shrink: 0;
    margin-left: 1rem;
}

.faq-item.open .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.open .faq-answer {
    max-height: 500px;
    padding: 0 2rem 1.5rem;
}

.faq-answer p {
    color: var(--color-gray-dark);
    line-height: 1.7;
}

/* ====================================
   TESTIMONIALS / REFERENCES
   ==================================== */
.testimonials-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid var(--color-black);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 0.5rem;
    left: 1.5rem;
    font-size: 4rem;
    color: var(--color-gray);
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-quote {
    font-style: italic;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-gray-dark);
    margin-bottom: 1.5rem;
    padding-top: 1rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.testimonial-info strong {
    display: block;
    font-size: 0.95rem;
}

.testimonial-info span {
    color: var(--color-gray-dark);
    font-size: 0.85rem;
}

.testimonial-source {
    margin-top: 0.5rem;
}

.testimonial-source a {
    color: var(--color-gray-dark);
    text-decoration: none;
    font-size: 0.8rem;
}

.testimonial-source a:hover {
    color: var(--color-black);
    text-decoration: underline;
}

.testimonials-cta {
    text-align: center;
    margin-top: 2rem;
}

/* Placeholder for missing testimonials */
.testimonial-placeholder {
    background: var(--color-white);
    border: 2px dashed var(--color-gray-dark);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    color: var(--color-gray-dark);
}

.testimonial-placeholder p {
    margin-bottom: 1rem;
}

/* ====================================
   SCREENSHOT PLACEHOLDERS
   ==================================== */
.screenshot-placeholder {
    background: var(--color-gray);
    border: 2px dashed #ccc;
    border-radius: 8px;
    padding: 3rem 2rem;
    text-align: center;
    color: var(--color-gray-dark);
    margin: 2rem 0;
    position: relative;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.screenshot-placeholder .placeholder-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.screenshot-placeholder .placeholder-label {
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--color-black);
}

.screenshot-placeholder .placeholder-hint {
    font-size: 0.85rem;
    max-width: 400px;
}

.screenshot-placeholder.screenshot-wide {
    min-height: 300px;
}

.screenshot-placeholder.screenshot-tool {
    border-color: var(--color-black);
    background: #f8f8f8;
}

/* Screenshot with actual image */
.screenshot-container {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    margin: 2rem 0;
}

.screenshot-container img {
    width: 100%;
    height: auto;
    display: block;
}

.screenshot-caption {
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-gray-dark);
    margin-top: 0.5rem;
    font-style: italic;
}

/* ====================================
   "POURQUOI WHIPBRICK" SECTION
   ==================================== */
.why-section {
    padding: var(--spacing-xl) 0;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.why-card {
    padding: 2rem;
    background: var(--color-gray);
    border-radius: 8px;
    border-top: 3px solid var(--color-black);
}

.why-card h3 {
    margin-bottom: 1rem;
}

.why-card p {
    color: var(--color-gray-dark);
    line-height: 1.7;
}

.why-card ul {
    list-style: disc;
    padding-left: 1.5rem;
    margin-top: 0.5rem;
}

.why-card li {
    color: var(--color-gray-dark);
    margin-bottom: 0.25rem;
}

/* ====================================
   EDUCATIONAL CONTENT SECTION
   ==================================== */
.educational-section {
    padding: var(--spacing-xl) 0;
}

.educational-content {
    max-width: 800px;
    margin: 0 auto;
}

.educational-content h2 {
    margin-bottom: var(--spacing-md);
}

.educational-content p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-gray-dark);
    margin-bottom: 1.5rem;
}

.impact-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.impact-metric {
    text-align: center;
    padding: 1.5rem;
    background: var(--color-gray);
    border-radius: 8px;
}

.impact-metric .metric-value {
    font-size: 2rem;
    font-weight: 700;
    display: block;
    margin-bottom: 0.5rem;
}

.impact-metric .metric-label {
    font-size: 0.875rem;
    color: var(--color-gray-dark);
}

/* ====================================
   SERVICE CATEGORY DETAILED
   ==================================== */
.service-category-section {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-gray);
}

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

.service-category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: var(--spacing-md);
}

.service-category-header .cat-letter {
    width: 50px;
    height: 50px;
    background: var(--color-black);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.service-sub-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.service-sub-item {
    padding: 1.5rem;
    background: var(--color-gray);
    border-radius: 8px;
}

.service-sub-item h4 {
    margin-bottom: 0.75rem;
}

.service-sub-item p {
    color: var(--color-gray-dark);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.service-sub-item ul {
    list-style: disc;
    padding-left: 1.5rem;
}

.service-sub-item li {
    color: var(--color-gray-dark);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.deliverables-label {
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    color: var(--color-black);
}

/* ====================================
   VALUE CARD FEATURED (index)
   ==================================== */
.value-card-featured {
    border: 2px solid var(--color-black);
    position: relative;
}

.value-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--color-black);
    color: var(--color-white);
    padding: 0.25rem 1rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.card-link {
    display: inline-block;
    color: var(--color-black);
    text-decoration: none;
    font-weight: 500;
    margin-top: 0.5rem;
}

.card-link:hover {
    text-decoration: underline;
}

.card-link-primary {
    font-weight: 600;
}

.card-link-secondary {
    display: inline-block;
    color: var(--color-gray-dark);
    text-decoration: none;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.card-link-secondary:hover {
    color: var(--color-black);
}

.card-tagline {
    color: var(--color-gray-dark);
    margin-bottom: 1rem;
    font-style: italic;
}

/* ====================================
   TOOL SHOWCASE (index featured)
   ==================================== */
.service-block-featured {
    border: 2px solid var(--color-black);
    background: #fafafa;
}

.service-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.service-tag {
    display: inline-block;
    background: var(--color-gray);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--color-gray-dark);
}

.service-tag-hot {
    background: var(--color-black);
    color: var(--color-white);
}

.service-cta {
    margin-top: 1.5rem;
}

.tool-showcase {
    background: var(--color-white);
    border: 1px solid var(--color-gray);
    border-radius: 8px;
    padding: 2rem;
    margin: 1.5rem 0;
}

.tool-showcase-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.tool-pitch {
    font-size: 1.05rem;
    color: var(--color-gray-dark);
    margin-bottom: 1rem;
}

.tool-quick-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.quick-feature {
    font-size: 0.9rem;
    padding: 0.5rem;
    background: var(--color-gray);
    border-radius: 4px;
}

.tool-showcase-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-large {
    font-size: 1.1rem;
    padding: 1.25rem 2.5rem;
}

.badge-free {
    background: #22c55e;
    color: white;
}

.badge-price {
    background: #3b82f6;
    color: white;
}

.badge-premium {
    background: var(--color-black);
    color: white;
}

/* ====================================
   WORKFLOW STEPS (people-analytics)
   ==================================== */
.workflow-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.workflow-step {
    background: var(--color-white);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--color-gray);
    text-align: center;
}

.step-num {
    width: 40px;
    height: 40px;
    background: var(--color-black);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.workflow-step h4 {
    margin-bottom: 0.5rem;
}

.workflow-step p {
    font-size: 0.875rem;
    color: var(--color-gray-dark);
}

/* Tool Tech Features */
.tool-tech {
    margin: 2rem 0;
}

.tech-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.tech-feature {
    background: var(--color-white);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--color-gray);
}

.tech-feature h4 {
    margin-bottom: 0.5rem;
}

.tech-feature p {
    font-size: 0.875rem;
    color: var(--color-gray-dark);
}

/* Tool Data Privacy */
.tool-data-privacy {
    margin: 2rem 0;
}

.privacy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.privacy-item {
    background: var(--color-white);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--color-gray);
}

.privacy-item h4 {
    margin-bottom: 0.5rem;
}

.privacy-item p {
    font-size: 0.875rem;
    color: var(--color-gray-dark);
}

/* Tier pricing */
.tier-question {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.tier-time {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--color-gray-dark);
}

.feature-box.featured {
    border-color: #3b82f6;
    background: #f0f7ff;
}

/* Tool How It Works */
.tool-how-it-works {
    margin: 2rem 0;
}

.tool-hero .tool-tagline {
    font-size: 1.25rem;
}

/* Tool CTA Final */
.tool-cta-final {
    text-align: center;
    margin: 3rem 0;
    padding: 3rem;
    background: var(--color-black);
    color: var(--color-white);
    border-radius: 8px;
}

.tool-cta-final h3 {
    margin-bottom: 1rem;
}

.tool-cta-final p {
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.tool-disclaimer {
    font-size: 0.8rem;
    opacity: 0.6;
    margin-top: 1rem;
}

/* ====================================
   FOUNDER PAGE ADDITIONS
   ==================================== */
.bio-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    align-items: start;
}

.bio-photo img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.bio-content h2 {
    margin-bottom: 1rem;
}

.bio-content .lead {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.bio-focus {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.bio-focus li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-gray);
}

.bio-cta {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.founder-journey {
    padding: var(--spacing-xl) 0;
}

.founder-impacts {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.impacts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.impact-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
}

.impact-card h3 {
    margin-bottom: 1rem;
}

.impact-card p {
    color: var(--color-gray-dark);
}

.founder-expertise {
    padding: var(--spacing-xl) 0;
}

.expertise-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.expertise-card-founder {
    padding: 2rem;
    background: var(--color-gray);
    border-radius: 8px;
}

.expertise-card-founder.featured {
    border: 2px solid var(--color-black);
    background: var(--color-white);
}

.expertise-card-founder h3 {
    margin-bottom: 1rem;
}

.expertise-card-founder ul {
    list-style: disc;
    padding-left: 1.5rem;
}

.expertise-card-founder li {
    margin-bottom: 0.25rem;
    color: var(--color-gray-dark);
}

.founder-sectors {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.sectors-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.sector-tag {
    background: var(--color-white);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    border: 1px solid var(--color-black);
    font-weight: 500;
}

.founder-skills {
    padding: var(--spacing-xl) 0;
}

.skills-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.founder-philosophy {
    padding: var(--spacing-xl) 0;
    background: var(--color-gray);
}

.philosophy-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.philosophy-content blockquote {
    font-size: 1.5rem;
    font-style: italic;
    margin-bottom: 2rem;
    padding: 2rem;
    border-left: 4px solid var(--color-black);
    text-align: left;
}

.philosophy-content p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-gray-dark);
    margin-bottom: 1rem;
    text-align: left;
}

.founder-contact {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.contact-methods {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

/* ====================================
   MOBILE IMPROVEMENTS
   ==================================== */
@media (max-width: 768px) {
    .bio-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .bio-photo {
        max-width: 250px;
        margin: 0 auto;
    }
    
    .bio-cta {
        justify-content: center;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .tool-showcase-cta {
        flex-direction: column;
    }
    
    .service-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .faq-question {
        font-size: 1rem;
        padding: 1rem 1.5rem;
    }

    .section-title {
        font-size: 2rem;
    }
    
    .value-title {
        font-size: 2rem;
    }
}

/* ====================================
   HAMBURGER MENU MOBILE
   ==================================== */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-black);
    transition: 0.3s;
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 1rem 2rem;
        border-bottom: 1px solid var(--color-gray);
        gap: 1rem;
    }
    
    .nav-menu.active {
        display: flex;
    }
}

/* ====================================
   HOMEPAGE RESTRUCTURED LAYOUTS
   ==================================== */

/* Pourquoi Whipbrick - Force 4 columns */
.why-grid--quad {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.why-card--exec {
    padding: 2rem;
    background: var(--color-gray);
    border-radius: 8px;
    border-left: 4px solid var(--color-black);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.why-card--exec:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.why-card--exec h3 {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.why-card--exec p {
    color: var(--color-gray-dark);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Expertise Domains - 6 cards (3×2 grid) */
.expertise-domains-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.domain-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    border-bottom: 3px solid var(--color-black);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.domain-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
}

.domain-card .value-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.domain-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.domain-card .card-tagline {
    color: var(--color-gray-dark);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.domain-card .value-list {
    list-style: none;
    padding: 0;
}

.domain-card .value-list li {
    padding: 0.3rem 0;
    font-size: 0.9rem;
    color: var(--color-gray-dark);
    padding-left: 1.2rem;
    position: relative;
}

.domain-card .value-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--color-black);
    font-weight: bold;
}

.tech-summary {
    margin-top: 2rem;
    padding: 1.5rem 2rem;
    background: var(--color-black);
    color: var(--color-white);
    border-radius: 8px;
    text-align: center;
}

.tech-summary p {
    font-size: 1rem;
    line-height: 1.6;
    color: rgba(255,255,255,0.85);
}

.tech-summary strong {
    color: var(--color-white);
}

/* Data Analytics 2×2 Grid */
.service-grid-2x2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.service-quad {
    padding: 1.75rem;
    background: var(--color-gray);
    border-radius: 8px;
    border-top: 3px solid var(--color-black);
}

.service-quad h4 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.service-quad p {
    color: var(--color-gray-dark);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.quad-tech {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--color-gray-dark);
    background: var(--color-white);
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
    font-weight: 500;
}

.vision-360-tagline {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--color-gray-dark);
    padding: 1.5rem;
    background: var(--color-gray);
    border-left: 4px solid var(--color-black);
    border-radius: 0 8px 8px 0;
    margin-bottom: 1.5rem;
}

.vision-360-tagline strong {
    color: var(--color-black);
    font-size: 1.15rem;
}

/* Data Flow - Dark Background Section */
.data-flow-dark {
    background: #1a1a1a;
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    margin: var(--spacing-lg) 0 0;
}

.data-flow-dark .section-title,
.data-flow-dark h3 {
    color: var(--color-white);
}

.data-flow-dark .solution-intro,
.data-flow-dark p {
    color: rgba(255,255,255,0.8);
}

.data-flow-dark .solution-diagram {
    max-width: 1000px;
    margin: 2rem auto;
    text-align: center;
}

.data-flow-dark .solution-diagram img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.data-flow-dark .solution-steps {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
    max-width: 1100px;
    margin: 2rem auto 0;
}

.data-flow-dark .solution-step {
    text-align: center;
    padding: 1.25rem 0.75rem;
    background: rgba(255,255,255,0.05);
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.1);
}

.data-flow-dark .solution-step h4 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.data-flow-dark .solution-step p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
}

/* Responsive adjustments */
@media (max-width: 1100px) {
    .why-grid--quad {
        grid-template-columns: repeat(2, 1fr);
    }
    .expertise-domains-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .why-grid--quad {
        grid-template-columns: 1fr;
    }
    .expertise-domains-grid {
        grid-template-columns: 1fr;
    }
    .service-grid-2x2 {
        grid-template-columns: 1fr;
    }
    .data-flow-dark .solution-steps {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .data-flow-dark .solution-steps {
        grid-template-columns: repeat(2, 1fr);
    }
}