:root {
    --primary-green: #1a5d4a;
    --light-green: #e8f5f0;
    --accent-green: #2d7a5f;
    --white: #ffffff;
    --off-white: #fafafa;
    --gray-light: #f5f5f5;
    --gray-medium: #9ca3af;
    --gray-dark: #374151;
    --text-primary: #111827;
    --text-secondary: #6b7280;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(26, 93, 74, 0.1);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-green);
    margin: 0;
}

.tagline {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 300;
    letter-spacing: 0.05em;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 400;
    transition: color 0.3s ease;
}

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

.subscribe-btn {
    background: var(--primary-green);
    color: white;
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 2rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.subscribe-btn:hover {
    background: var(--accent-green);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    background: var(--primary-green);
    margin: 2px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    margin-top: 80px;
    padding: 4rem 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    min-height: 70vh;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    font-weight: 500;
    color: var(--primary-green);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.5;
}

.cta-button {
    background: var(--primary-green);
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background: var(--accent-green);
    transform: translateY(-2px);
}

.hero-image {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-card {
    background: var(--light-green);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(26, 93, 74, 0.1);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.issue-number {
    display: block;
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    color: var(--primary-green);
}

.issue-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Featured Articles */
.featured-articles {
    padding: 4rem 0;
    background: var(--off-white);
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    color: var(--primary-green);
    margin-bottom: 2rem;
    text-align: center;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.article-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(26, 93, 74, 0.15);
}

.article-card.featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}

.article-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.article-card.featured .article-image {
    height: 300px;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--light-green) 0%, var(--primary-green) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-overlay {
    position: absolute;
    inset: 0;
    background: rgba(26, 93, 74, 0.3);
}

.category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: white;
    color: var(--primary-green);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.article-content {
    padding: 1.5rem;
}

.article-content h4 {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.article-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.read-time {
    color: var(--primary-green);
    font-size: 0.875rem;
    font-weight: 500;
}

.read-more-btn {
    background: transparent;
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
    font-weight: 500;
}

.read-more-btn:hover {
    background: var(--primary-green);
    color: white;
    transform: translateY(-2px);
}

/* New: category filter */
.category-filter {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}
.category-btn {
    background: transparent;
    border: 1px solid var(--primary-green);
    color: var(--primary-green);
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.2s ease, color 0.2s ease;
}
.category-btn.active,
.category-btn:hover {
    background: var(--primary-green);
    color: white;
}

/* Active states for interactive elements */
.subscribe-btn:active,
.cta-button:active,
.read-more-btn:active {
    transform: scale(0.95);
}

/* Footer */
footer {
    background: var(--gray-light);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--primary-green);
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary-green);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-medium);
    color: var(--text-secondary);
}

/* Mobile Styles */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

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

    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 3rem 1rem;
    }

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

    .article-card.featured {
        grid-template-columns: 1fr;
    }

    .category-filter {
        justify-content: center;
    }
}