:root {
    --primary-color: #0072B2; /* Nature Blue */
    --secondary-color: #005b8e; /* Darker Blue for hover */
    --accent-color: #FF7F50; /* Coral */
    --text-color: #333333;
    --bg-color: #ffffff;
    --light-bg: #f4f7f6;
    --border-color: #e0e0e0;
    --font-main: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

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

/* Navigation */
header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    padding: 4rem 0;
    background-color: var(--light-bg);
    display: flex;
    align-items: center;
    gap: 2rem;
}

.hero-content {
    flex: 1;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-image {
    flex: 0 0 300px;
    text-align: center;
}

.profile-placeholder {
    width: 250px;
    height: 250px;
    background-color: #ddd;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    border: 5px solid var(--primary-color);
    color: #666;
    overflow: hidden; /* Ensure image stays within circle */
}

.profile-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

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

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    margin-left: 1rem;
}

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

/* Sections */
section {
    padding: 4rem 0;
}

h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text-color);
    border-bottom: 3px solid var(--accent-color);
    display: inline-block;
}

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

.card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.tag {
    display: inline-block;
    background-color: var(--light-bg);
    color: var(--primary-color);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.85rem;
    margin-right: 0.5rem;
    margin-top: 0.5rem;
}

/* News List */
.news-list {
    list-style: none;
}

.news-item {
    display: flex;
    gap: 1.5rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.news-date {
    font-weight: bold;
    color: var(--accent-color);
    min-width: 100px;
}

/* Footer */
footer {
    background-color: var(--text-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
    margin-top: auto;
}

footer a {
    color: white;
    margin: 0 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        flex-direction: column-reverse;
        text-align: center;
    }
    
    .nav-links {
        display: none; /* Simple hide for now, would need JS for toggle */
    }
    
    .hero p {
        margin: 0 auto 2rem;
    }
}