/* Base Styles */
:root {
    --color-background: #0a0a0a;
    --color-text: #ffffff;
    --color-accent: #4CAF50;
    --color-accent-light: #81C784;
    --color-accent-dark: #388E3C;
    --color-gray: #666666;
    --color-gray-light: #999999;
    --spacing-unit: 1rem;
    --container-width: 1200px;
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: calc(var(--spacing-unit) * 0.75);
}

h1 {
    font-size: 2.25rem;
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

h2 {
    font-size: 1.75rem;
    margin-bottom: calc(var(--spacing-unit) * 1.25);
}

h3 {
    font-size: 1.25rem;
    margin-bottom: calc(var(--spacing-unit) * 0.75);
}

p {
    margin-bottom: calc(var(--spacing-unit) * 0.75);
    line-height: 1.7;
}

ul {
    margin-bottom: calc(var(--spacing-unit) * 0.75);
}

li {
    margin-bottom: calc(var(--spacing-unit) * 0.25);
    line-height: 1.6;
}

/* Navigation */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 10px 0;
    transition: all var(--transition-speed);
    min-height: 73px;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-unit);
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 2rem;
    min-height: 53px;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo-image {
    height: 53px;
    width: auto;
    padding: 0;
    margin: 0;
    transition: transform 0.3s ease;
}

.logo-image:hover {
    transform: scale(1.05);
}

.logo-dot {
    color: var(--color-accent-dark);
}

.nav-links {
    display: flex;
    justify-content: flex-start;
    gap: 2rem;
}

.nav-links a {
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-speed);
}

.nav-links a:hover {
    color: var(--color-accent-light);
}

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

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.contact-label {
    font-size: 0.8rem;
    color: var(--color-gray-light);
    margin-bottom: 0rem;
}

.contact-value {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.8rem;
    transition: color var(--transition-speed);
}

.contact-value:hover {
    color: var(--color-accent-light);
}

/* Hero Section */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    bottom: 100px;
    left: 100px;
    z-index: 2;
}

.hero-text {
    color: var(--color-text);
    font-size: 2rem;
    font-weight: 500;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    margin: 0;
}

/* Section Titles */
.section-title {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 3);
}

/* Intro Section */
.intro-section {
    padding: 4rem var(--spacing-unit);
    background-color: rgba(76, 175, 80, 0.05);
}

.intro-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.intro-content p {
    font-size: 1.5rem;
    line-height: 1.8;
    margin-bottom: 0;
}

/* Challenges Section */
.challenges-section {
    padding: 6rem var(--spacing-unit);
    background-color: rgba(76, 175, 80, 0.05);
}

.challenges-grid {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding: 2rem 0;
}

.challenge-item {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--color-accent-dark);
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
}

.challenge-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(76, 175, 80, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.challenge-item:hover::before {
    transform: translateX(100%);
}

.challenge-item:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent-light);
}

.challenge-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.challenge-item p {
    font-size: 1rem;
    margin-bottom: 0;
}

.challenges-cta {
    text-align: center;
    margin-top: 3rem;
}

.cta-link {
    color: var(--color-accent-light);
    text-decoration: none;
    font-size: 1.1rem;
    transition: color var(--transition-speed);
}

.cta-link:hover {
    color: var(--color-accent);
}

/* Cityscape Section */
.cityscape-section {
    width: 100%;
    height: 400px;
    overflow: hidden;
    position: relative;
}

.cityscape {
    width: 100%;
    height: auto;
    position: absolute;
    bottom: 0;
    left: 0;
    object-fit: cover;
    object-position: middle;
}

/* Areas Section */
.areas-section {
    padding: 6rem var(--spacing-unit);
    background-color: rgba(76, 175, 80, 0.05);
}

.areas-grid {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    padding: 2rem 0;
}

.area-item {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 8px;
    transition: transform var(--transition-speed);
}

.area-item:hover {
    transform: translateY(-5px);
}

/* Talent Section */
.talent-section {
    padding: 6rem var(--spacing-unit);
}

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

.talent-grid {
    max-width: var(--container-width);
    margin: 0 auto 4rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    padding: 2rem 0;
}

.talent-item {
    text-align: center;
}

.talent-item img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin-bottom: 1rem;
    object-fit: cover;
}

/* Specific image adjustments */
.talent-item img[alt="Gilles Guegan"] {
    object-position: center 30%;
}

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

.talent-item .role {
    color: var(--color-accent-light);
    font-size: 0.9rem;
    margin-bottom: 0;
}

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

.talent-outro p:first-child {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

/* Footer */
.main-footer {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 2rem var(--spacing-unit);
}

.footer-content {
    max-width: var(--container-width);
    margin: 0 auto;
}

.footer-legal {
    text-align: center;
    color: var(--color-gray);
    font-size: 0.9rem;
}

/* Contact Page */
.contact-section {
    padding: 6rem var(--spacing-unit) 4rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.contact-container {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-content {
    max-width: 600px;
}

.contact-content h1 {
    margin-top: 50px;
    margin-bottom: calc(var(--spacing-unit) * 1);
    text-align: left;
}

.contact-content h2 {
    margin-top: calc(var(--spacing-unit) * 2);
    margin-bottom: calc(var(--spacing-unit) * 0.75);
}

.contact-content h3 {
    margin-top: calc(var(--spacing-unit) * 1);
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.contact-content p {
    margin-bottom: calc(var(--spacing-unit) * 0.75);
}

.contact-content ul {
    margin-bottom: calc(var(--spacing-unit) * 1);
    padding-left: calc(var(--spacing-unit) * 1.5);
}

.contact-content li {
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.contact-intro {
    font-size: 1.1rem;
    margin-bottom: calc(var(--spacing-unit) * 1.5);
    color: var(--color-gray-light);
}

.contact-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: calc(var(--spacing-unit) * 2) 0;
    padding: calc(var(--spacing-unit) * 1.5);
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-info-item h3 {
    font-size: 0.9rem;
    color: var(--color-gray-light);
    margin-bottom: calc(var(--spacing-unit) * 0.5);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-info-item a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    transition: color var(--transition-speed);
}

.contact-info-item a:hover {
    color: var(--color-accent-light);
}

.contact-form {
    display: grid;
    gap: 1.25rem;
    margin-top: calc(var(--spacing-unit) * 2);
}

.form-group {
    display: grid;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.85rem;
    color: var(--color-gray-light);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-accent-dark);
    padding: 0.875rem;
    border-radius: 4px;
    color: var(--color-text);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color var(--transition-speed);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-light);
}

.submit-button {
    background-color: var(--color-accent);
    color: var(--color-text);
    border: none;
    padding: 1rem 2rem;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

.submit-button:hover {
    background-color: var(--color-accent-dark);
}

.contact-image {
    margin-top: calc(var(--spacing-unit) * 3);
}

.contact-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .challenges-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .talent-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-content {
        max-width: 100%;
    }
    
    .contact-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .hero-overlay {
        bottom: 50px;
        left: 50px;
    }
    
    .hero-text {
        font-size: 1.5rem;
    }
    
    .contact-info-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none;
    }
    
    .contact-info {
        display: none;
    }
    
    .challenges-grid {
        grid-template-columns: 1fr;
    }
    
    .talent-grid {
        grid-template-columns: 1fr;
    }
    
    .main-nav {
        min-height: auto;
        padding: 10px 0;
    }
    
    .nav-container {
        grid-template-columns: 1fr;
        min-height: auto;
        gap: 1rem;
    }
    
    .logo {
        display: flex;
        justify-content: center;
        width: 80%;
        margin: 0 auto;
    }
    
    .logo-image {
        height: auto;
        width: 80%;
        max-width: 160px;
    }
    
    .nav-links.active {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        padding: 1rem 0;
    }
    
    .contact-info.active {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        padding: 1rem 0;
    }
    
    .mobile-menu-btn {
        display: block;
        text-align: center;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-overlay {
        bottom: 30px;
        left: 30px;
    }
    
    .hero-text {
        font-size: 1.2rem;
    }
    
    .intro-content p {
        font-size: 1.2rem;
    }
}