css_content = """/* ================================================================= *
 * Eurasia Natural History Association - Professional Stylesheet     *
 * Modern, Clean, Responsive & Accessible Design                     *
 * ================================================================= */

:root {
    --primary-color: #1b3b2b;      /* Deep Forest Green / Earth Tone */
    --secondary-color: #2c5e43;    /* Secondary Rich Green */
    --accent-color: #d4a373;       /* Warm Earth / Ochre Accent */
    --accent-hover: #bc8a59;
    --dark-color: #2b2d42;         /* Charcoal Text */
    --light-color: #f8f9fa;        /* Clean Off-White */
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --text-muted: #64748b;
    --transition: all 0.3s ease;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --radius: 8px;
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--dark-color);
    background-color: var(--light-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
    color: #4a5568;
}

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

a:hover {
    color: var(--accent-color);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(27, 59, 43, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    padding: 0.75rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #ffffff !important;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-links > a, .dropbtn {
    color: #ffffff;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    position: relative;
}

.nav-links > a:hover, .dropbtn:hover {
    color: var(--accent-color);
}

/* Dropdown */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--card-bg);
    min-width: 220px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius);
    padding: 0.5rem 0;
    z-index: 1001;
    border: 1px solid var(--border-color);
    animation: fadeIn 0.2s ease-in-out;
}

.dropdown-content a {
    color: var(--dark-color);
    padding: 0.75rem 1.25rem;
    display: block;
    font-size: 0.9rem;
    font-weight: 400;
}

.dropdown-content a:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
    padding-left: 1.5rem;
}

.dropdown:hover .dropdown-content {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(27, 59, 43, 0.9), rgba(44, 94, 67, 0.85));
    color: white;
    padding: 10rem 0 6rem 0;
    text-align: center;
    position: relative;
}

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

.hero h1 {
    font-size: 3rem;
    color: white;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.2rem;
    color: #e2e8f0;
    margin-bottom: 2rem;
    line-height: 1.7;
}

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

.section.bg-light {
    background-color: #ffffff;
}

.section-title {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    max-width: 700px;
    margin: -2rem auto 3rem auto;
    color: var(--text-muted);
}

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

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

/* Cards */
.card, .about-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card:hover, .about-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.card h3, .about-card h3 {
    font-size: 1.35rem;
    margin-bottom: 1rem;
}

/* Badges */
.card-badge {
    display: inline-block;
    background-color: rgba(212, 163, 115, 0.15);
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.8rem;
    padding: 0.35rem 0.85rem;
    border-radius: 50px;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-badge.complete {
    background-color: rgba(44, 94, 67, 0.15);
    color: var(--secondary-color);
}

/* Images inside cards */
.protocol-img img {
    width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.protocol-img img:hover {
    transform: scale(1.02);
}

/* Partners Container */
.partners-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.partner-tag {
    background: white;
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    color: var(--dark-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.partner-tag:hover {
    border-color: var(--accent-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background-color: #14281e;
    color: #e2e8f0;
    padding: 4rem 0 2rem 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    align-items: start;
    margin-bottom: 3rem;
}

.footer-info h3 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.footer-info p {
    color: #cbd5e1;
    margin-bottom: 0.5rem;
}

.footer-info a {
    color: var(--accent-color);
}

.footer-links h4 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    border-left: 3px solid var(--accent-color);
    padding-left: 10px;
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #cbd5e1;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    text-align: center;
    color: #94a3b8;
    font-size: 0.9rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

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

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero h1 {
        font-size: 2.25rem;
    }
    .hero {
        padding: 8rem 0 4rem 0;
    }
}
"""

with open("style.css", "w", encoding="utf-8") as f:
    f.write(css_content)
print("style.css generated successfully.")