/* ===== Variables CSS ===== */
:root {
    --color-primary: #2D5A27;      /* Vert forêt */
    --color-primary-light: #4A7C43;
    --color-primary-dark: #1E3D1A;
    --color-secondary: #8B7355;    /* Terre/bois */
    --color-accent: #D4A574;       /* Blé doré */
    --color-light: #F5F2ED;        /* Crème naturel */
    --color-white: #FFFFFF;
    --color-text: #333333;
    --color-text-light: #666666;

    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Open Sans', Arial, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    --border-radius: 8px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-primary-dark);
}

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

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

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

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-links a {
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
}

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

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

.nav-links a:hover::after {
    width: 100%;
}

.btn-nav {
    background: var(--color-primary);
    color: var(--color-white) !important;
    padding: var(--spacing-xs) var(--spacing-sm) !important;
    border-radius: var(--border-radius);
}

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

.btn-nav::after {
    display: none !important;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
    position: relative;
    padding: var(--spacing-xl) var(--spacing-md);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    background-size: 50px 50px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--color-white);
}

.hero h1 {
    font-size: 4rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 2px;
}

.hero .subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: var(--spacing-xs);
    opacity: 0.95;
}

.hero .tagline {
    font-size: 1.1rem;
    font-style: italic;
    opacity: 0.85;
    margin-bottom: var(--spacing-lg);
}

/* ===== Buttons ===== */
.btn-primary {
    display: inline-block;
    background: var(--color-accent);
    color: var(--color-primary-dark);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

.section-alt {
    background: var(--color-light);
}

.section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.section h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--color-accent);
    margin: var(--spacing-sm) auto 0;
    border-radius: 2px;
}

/* ===== Concept Section ===== */
.intro-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.2rem;
    color: var(--color-text-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.feature-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ===== Project Section ===== */
.project-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.project-info h3 {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.location {
    color: var(--color-text-light);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

.project-list {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.project-list li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

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

.highlight-box {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.highlight-box strong {
    color: var(--color-accent);
}

.project-vision blockquote {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-style: italic;
    color: var(--color-text);
    padding: var(--spacing-md);
    border-left: 4px solid var(--color-accent);
    background: var(--color-white);
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    margin-bottom: var(--spacing-sm);
}

.quote-author {
    text-align: right;
    color: var(--color-text-light);
    font-weight: 600;
}

/* ===== Stats Section ===== */
.stats-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--color-text-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: scale(1.05);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.stat-detail {
    font-size: 0.9rem;
    opacity: 0.8;
}

.territory-details {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.territory-details h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.communes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.commune-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-light);
    border-radius: var(--border-radius);
}

.commune-name {
    font-weight: 600;
    color: var(--color-primary-dark);
}

.commune-data {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.source {
    font-size: 0.85rem;
    color: var(--color-text-light);
    font-style: italic;
    text-align: right;
}

/* ===== Reasons Section ===== */
.reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.reason-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border-top: 4px solid var(--color-primary);
}

.reason-card h3 {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.reason-card p {
    color: var(--color-text-light);
}

/* ===== Contact Section ===== */
.contact-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.contact-info p {
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.contact-details {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-light);
    border-radius: var(--border-radius);
}

.contact-details p {
    margin-bottom: var(--spacing-xs);
}

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

/* ===== Footer ===== */
.footer {
    background: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo .logo {
    color: var(--color-white);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.footer-logo p {
    opacity: 0.7;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    color: var(--color-white);
    opacity: 0.8;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-accent);
}

.footer-bottom {
    text-align: center;
    opacity: 0.6;
    font-size: 0.9rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow);
    }

    .nav-links.active {
        display: flex;
    }

    .hamburger {
        display: flex;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .subtitle {
        font-size: 1.2rem;
    }

    .section h2 {
        font-size: 2rem;
    }

    .project-details {
        grid-template-columns: 1fr;
    }

    .contact-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .section {
        padding: var(--spacing-lg) 0;
    }
}

/* ===== Investor Page Specific ===== */
.login-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    padding: var(--spacing-md);
}

.login-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-hover);
    max-width: 400px;
    width: 100%;
    text-align: center;
}

.login-card h2 {
    margin-bottom: var(--spacing-md);
}

.login-card h2::after {
    margin: var(--spacing-sm) auto 0;
}

.login-form {
    margin-top: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-text);
}

.form-group input {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--color-light);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.btn-submit {
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

.error-message {
    color: #c0392b;
    margin-top: var(--spacing-sm);
    display: none;
}

.back-link {
    display: block;
    margin-top: var(--spacing-md);
    color: var(--color-text-light);
}

.back-link:hover {
    color: var(--color-primary);
}

/* ===== Investor Content ===== */
.investor-content {
    display: none;
    padding-top: 80px;
}

.investor-content.active {
    display: block;
}

.investor-hero {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.investor-hero h1 {
    color: var(--color-white);
    font-size: 2.5rem;
}

.investor-hero p {
    opacity: 0.9;
    font-size: 1.2rem;
    margin-top: var(--spacing-sm);
}

.investment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.investment-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.investment-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

.investment-card ul {
    list-style: none;
}

.investment-card li {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-light);
}

.investment-card li:last-child {
    border-bottom: none;
}

.key-figure {
    font-size: 2rem;
    color: var(--color-primary);
    font-weight: 700;
    font-family: var(--font-heading);
}

.logout-btn {
    background: transparent;
    border: 2px solid var(--color-white);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}

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