/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #FF6B35;
    --primary-dark: #E5522F;
    --secondary: #004E89;
    --dark: #1A1A2E;
    --light: #FFFFFF;
    --gray: #E8E8E8;
    --gray-dark: #666;
    --text: #2D2D2D;
    --spacing: 1rem;
    --radius: 12px;
    --shadow: 0 4px 20px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--light);
}

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

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

a:hover, a:focus {
    color: var(--primary-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing);
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--primary);
    color: var(--light);
    padding: 0.5rem 1rem;
    z-index: 10000;
}

.skip-link:focus {
    top: 0;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light);
    letter-spacing: 2px;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--light);
    margin: 5px 0;
    transition: var(--transition);
}

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

.nav-menu a {
    color: var(--light);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s;
}

.nav-menu a:hover::after,
.nav-menu a:focus::after {
    width: 100%;
}

.nav-cta {
    background: var(--primary);
    padding: 0.6rem 1.2rem !important;
    border-radius: var(--radius);
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    background: var(--primary-dark);
}

/* Hero */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--light);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,78,137,0.8), rgba(26,26,46,0.9));
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 2rem;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.highlight {
    color: var(--primary);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.3rem);
    margin-bottom: 2.5rem;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.9rem 2rem;
    border-radius: var(--radius);
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 1rem;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255,107,53,0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--light);
    border-color: var(--light);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background: var(--light);
    color: var(--dark);
}

/* Sections */
.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
    color: var(--dark);
}

.section-intro {
    font-size: 1.15rem;
    color: var(--gray-dark);
    line-height: 1.7;
}

/* Approche */
.section-approach {
    background: var(--gray);
}

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

.approach-card {
    background: var(--light);
    padding: 2.5rem 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.approach-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.approach-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.approach-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

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

/* Expériences */
.experiences-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.experience-card {
    background: var(--gray);
    padding: 2rem;
    border-radius: var(--radius);
    transition: var(--transition);
    border: 2px solid transparent;
}

.experience-card:hover {
    border-color: var(--primary);
    background: var(--light);
    transform: translateY(-3px);
}

.experience-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.experience-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: var(--dark);
}

.experience-card p {
    color: var(--gray-dark);
    font-size: 0.95rem;
}

/* Matériel */
.section-equipment {
    background: var(--dark);
    color: var(--light);
}

.section-equipment .section-header h2,
.section-equipment .section-intro {
    color: var(--light);
}

.equipment-visual {
    margin-bottom: 3rem;
    border-radius: var(--radius);
    overflow: hidden;
}

.equipment-visual img {
    width: 100%;
    height: auto;
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.equipment-category {
    background: rgba(255,255,255,0.05);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.1);
}

.equipment-category h3 {
    font-size: 1.2rem;
    margin-bottom: 1.2rem;
    color: var(--primary);
}

.equipment-category ul {
    list-style: none;
}

.equipment-category li {
    padding: 0.6rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: rgba(255,255,255,0.85);
}

.equipment-category li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
}

.equipment-cta {
    text-align: center;
    padding: 3rem 0 1rem;
}

.equipment-cta p {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: rgba(255,255,255,0.9);
}

/* Références */
.references-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.reference-category h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--secondary);
    border-bottom: 2px solid var(--primary);
    padding-bottom: 0.5rem;
}

.reference-category ul {
    list-style: none;
}

.reference-category li {
    padding: 0.7rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text);
    border-bottom: 1px solid var(--gray);
}

.reference-category li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.references-visual {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

/* À propos */
.section-about {
    background: var(--gray);
}

.about-founder-card {
    background: var(--light);
    padding: 3rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 3rem;
}

.about-founder-header {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 3rem;
    align-items: center;
}

.about-image {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.about-image img {
    width: 100%;
    height: auto;
}

.about-founder-intro h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--secondary);
}

.founder-title {
    font-size: 1rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 1.5rem !important;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-founder-intro p {
    line-height: 1.8;
    color: var(--text);
}

.about-boxes {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.about-box {
    background: var(--light);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.about-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

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

.about-box h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--secondary);
}

.about-box p {
    color: var(--gray-dark);
    line-height: 1.7;
    text-align: left;
}

.about-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.about-gallery img {
    border-radius: var(--radius);
    width: 100%;
    height: 300px;
    object-fit: cover;
    box-shadow: var(--shadow);
}

/* Presse */
.press-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.press-item {
    background: var(--gray);
    padding: 1.5rem;
    border-radius: var(--radius);
    transition: var(--transition);
    border: 2px solid transparent;
}

.press-item:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    background: var(--light);
}

.press-type {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.press-type.video {
    background: #FF6B35;
    color: var(--light);
}

.press-type.article {
    background: #004E89;
    color: var(--light);
}

.press-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.press-item p {
    color: var(--gray-dark);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.press-item a {
    font-weight: 600;
    display: inline-block;
}

/* Contact */
.section-contact {
    background: var(--dark);
    color: var(--light);
}

.section-contact .section-header h2,
.section-contact .section-intro {
    color: var(--light);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: var(--primary);
}

.contact-item a {
    color: var(--light);
    font-size: 1.1rem;
}

.contact-item small {
    display: block;
    margin-top: 0.3rem;
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
}

.contact-social h3 {
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    font-weight: 700;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

/* Form */
.contact-form {
    background: rgba(255,255,255,0.05);
    padding: 2.5rem;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--light);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.9rem;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    background: rgba(255,255,255,0.05);
    color: var(--light);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255,255,255,0.08);
}

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    width: 100%;
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    display: none;
    text-align: center;
    font-weight: 500;
}

.form-message.success {
    display: block;
    background: rgba(76,175,80,0.2);
    border: 1px solid #4CAF50;
    color: #4CAF50;
}

.form-message.error {
    display: block;
    background: rgba(244,67,54,0.2);
    border: 1px solid #F44336;
    color: #F44336;
}

/* Footer */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.8);
    padding: 3rem 0 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    font-size: 1.8rem;
    color: var(--light);
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

.footer-brand p {
    color: rgba(255,255,255,0.6);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.footer-links h4 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

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

.footer-links li {
    margin-bottom: 0.6rem;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.lightbox.active {
    display: flex;
}

.lightbox-img {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
    cursor: default;
}

.lightbox-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--light);
    font-size: 2.5rem;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition);
    z-index: 10000;
}

.lightbox-close:hover {
    color: var(--primary);
    transform: scale(1.2);
}

/* Clickable images */
.about-image img,
.about-gallery img,
.equipment-visual img,
.references-visual img {
    cursor: pointer;
    transition: var(--transition);
}

.about-image img:hover,
.about-gallery img:hover,
.equipment-visual img:hover,
.references-visual img:hover {
    opacity: 0.85;
}

/* Mobile Menu */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(26, 26, 46, 0.98);
        flex-direction: column;
        padding: 2rem;
        transition: left 0.3s;
        gap: 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        width: 100%;
        text-align: center;
        padding: 1rem 0;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .nav-cta {
        margin-top: 1rem;
    }

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

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

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

@media (max-width: 1024px) {
    .experiences-grid,
    .equipment-grid,
    .about-boxes,
    .press-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-founder-header {
        grid-template-columns: 200px 1fr;
        gap: 2rem;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

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

@media (max-width: 768px) {
    .about-founder-card {
        padding: 1.5rem;
    }

    .about-founder-header {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-image {
        max-width: 250px;
        margin: 0 auto;
    }

    .about-boxes {
        grid-template-columns: 1fr;
    }

    .about-gallery {
        grid-template-columns: 1fr;
    }

    .about-gallery img {
        height: 200px;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-form {
        padding: 1.5rem;
    }

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

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

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

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

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
    }

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

@media (max-width: 480px) {
    .section {
        padding: 3rem 0;
    }

    .approach-grid,
    .experiences-grid,
    .equipment-grid,
    .references-grid,
    .press-grid {
        grid-template-columns: 1fr;
    }

    .about-founder-card {
        padding: 1rem;
    }

    .about-founder-intro h3 {
        font-size: 1.5rem;
    }

    .contact-form {
        padding: 1rem;
    }

    .social-links {
        flex-wrap: wrap;
    }
}