:root {
    --bg-dark: #0f1115;
    --bg-card: #161b22;
    --bg-header: #161b22; /* Slightly transparent later */
    
    --primary-green: #00e676; /* Vibrant Neon Green */
    --secondary-green: #00c853; /* Darker Green for hover */
    --accent-purple: #b388ff; /* Nice contrast for tags */
    
    --text-main: #e6e6e6;
    --text-muted: #a0a0a0;
    
    --border-color: #30363d;
    
    --font-main: 'Space Grotesk', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-main);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Header */
.main-header {
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

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

.logo {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -1px;
}

.logo-icon {
    margin-right: 10px;
    font-size: 1.8rem;
}

.logo h1 {
    margin: 0;
    color: #fff;
}

.highlight {
    color: var(--primary-green);
}

.main-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 30px;
}

.main-nav a {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-muted);
    padding: 5px 0;
    position: relative;
}

.main-nav a.active, .main-nav a:hover {
    color: #fff;
}

.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -24px; /* Align with header border */
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-green);
    box-shadow: 0 -2px 10px var(--primary-green);
}

.btn-cta {
    background-color: var(--primary-green);
    color: #000;
    font-weight: 700;
    padding: 10px 20px;
    border-radius: 4px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 230, 118, 0.4);
    color: #000; /* Keep text black */
}

/* Hero Section */
.hero-section {
    padding: 60px 0 40px;
    text-align: center;
    background: radial-gradient(circle at top center, rgba(0, 230, 118, 0.05), transparent 70%);
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 10px;
    line-height: 1.1;
    background: -webkit-linear-gradient(#fff, #aaa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    color: var(--text-muted);
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 40px;
}

/* Filter Bar */
.filter-bar {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    transition: all 0.2s;
}

.filter-btn:hover {
    border-color: var(--text-main);
    color: var(--text-main);
}

.filter-btn.active {
    background-color: var(--primary-green);
    border-color: var(--primary-green);
    color: #000;
}

/* News Grid */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.news-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-green);
}

/* Featured Card (Spans 2 columns on larger screens) */
@media (min-width: 768px) {
    .news-card.featured {
        grid-column: span 2;
        flex-direction: row;
    }
    
    .news-card.featured .news-image {
        width: 50%;
        height: auto;
    }
    
    .news-card.featured .news-content {
        width: 50%;
        padding: 30px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .news-card.featured h3 {
        font-size: 1.8rem;
    }
}

.news-image {
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: rgba(0,0,0,0.7);
    color: #fff;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.1);
}

.badge-politik { color: #ffab40; border-color: #ffab40; }
.badge-medizin { color: #ff5252; border-color: #ff5252; }
.badge-wirtschaft { color: #448aff; border-color: #448aff; }
.badge-kultur { color: var(--primary-green); border-color: var(--primary-green); }

.news-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.news-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    display: block;
}

.news-card h3 {
    margin: 0 0 10px;
    font-size: 1.3rem;
    line-height: 1.3;
}

.news-card p {
    color: #ccc;
    font-size: 0.95rem;
    margin-bottom: 20px;
    flex-grow: 1;
}

.news-meta {
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.source {
    color: var(--text-muted);
    font-weight: 600;
}

.read-more {
    color: var(--primary-green);
    font-weight: 700;
}

/* Load More */
.load-more-container {
    text-align: center;
    margin: 50px 0;
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 12px 30px;
    font-size: 1rem;
    cursor: pointer;
    transition: 0.2s;
    border-radius: 6px;
}

.btn-secondary:hover {
    border-color: var(--text-main);
    background-color: rgba(255,255,255,0.05);
}

/* Newsletter */
.newsletter-section {
    background-color: #000;
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.newsletter-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.newsletter-text {
    flex: 1;
    min-width: 300px;
}

.newsletter-text h3 {
    font-size: 2rem;
    margin-top: 0;
    margin-bottom: 10px;
}

.newsletter-form {
    flex: 1;
    display: flex;
    gap: 10px;
    min-width: 300px;
}

.newsletter-form input {
    flex: 1;
    padding: 15px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: #fff;
    border-radius: 6px;
    font-family: inherit;
}

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

.newsletter-form button {
    padding: 15px 30px;
    background: var(--primary-green);
    border: none;
    border-radius: 6px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
}

.privacy-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 10px;
}

/* Footer */
.main-footer {
    padding: 60px 0 20px;
    background-color: var(--bg-dark);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: #fff;
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: var(--text-muted);
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Mobile */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
    }
    
    .main-nav ul {
        gap: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-content h2 {
        font-size: 2.2rem;
    }
    
    .newsletter-content {
        flex-direction: column;
        text-align: center;
    }
    
    .newsletter-form {
        flex-direction: column;
        width: 100%;
    }
}