:root {
    --primary: #fbbf24; /* Gold accent */
    --primary-hover: #f59e0b;
    --bg-dark: #0f172a; /* Slate 900 */
    --bg-card: rgba(30, 41, 59, 0.7); /* Slate 800 with alpha */
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
    --glass: rgba(255, 255, 255, 0.05);
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.nav {
    padding: 1.5rem 0;
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.025em;
}

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

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

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

/* Hero Section */
.hero {
    padding: 10rem 0 6rem;
    position: relative;
    text-align: center;
    background: radial-gradient(circle at top right, rgba(251, 191, 36, 0.05), transparent);
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, var(--primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

.hero-image {
    width: 100%;
    max-width: 900px;
    height: 400px;
    margin: 3rem auto 0;
    border-radius: 24px;
    object-fit: cover;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

/* Pricing Section */
.pricing {
    padding: 6rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
}

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

.price-card {
    background: var(--bg-card);
    padding: 3rem 2rem;
    border-radius: 24px;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(8px);
}

.price-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px -15px rgba(251, 191, 36, 0.1);
}

.price-card.popular {
    border: 1.5px solid var(--primary);
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.8), rgba(251, 191, 36, 0.05));
}

.badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--primary);
    color: #000;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 99px;
}

.price-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.price-card .price {
    font-size: 3rem;
    font-weight: 800;
    margin: 1.5rem 0;
}

.price-card .price span {
    font-size: 1rem;
    color: var(--text-muted);
}

.features-list {
    list-style: none;
    margin-bottom: 2.5rem;
}

.features-list li {
    margin-bottom: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.features-list li::before {
    content: "✓";
    color: var(--primary);
    font-weight: bold;
}

.btn-primary {
    display: inline-block;
    background: var(--primary);
    color: #000;
    padding: 0.75rem 1.5rem;
    border-radius: 99px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    text-align: center;
    width: 100%;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: scale(1.02);
}

/* Articles Section */
.articles-preview {
    padding: 6rem 0;
    background: rgba(255, 255, 255, 0.02);
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.article-card {
    background: var(--glass);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--border);
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

.article-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
}

.article-card h4 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.article-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    padding: 4rem 0;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-muted);
}

/* Stats Section */
.stats-banner {
    padding: 4rem 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.stat-item i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1rem;
    display: block;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Use Cases */
.use-cases {
    padding: 6rem 0;
}

.use-case-card {
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 24px;
    border: 1px solid var(--border);
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.use-case-card h3 {
    font-size: 1.75rem;
}

.tag-container {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.tag {
    background: rgba(251, 191, 36, 0.1);
    color: var(--primary);
    padding: 0.4rem 1rem;
    border-radius: 99px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Node Status */
.node-status {
    padding: 6rem 0;
}

.status-list {
    background: var(--glass);
    border-radius: 20px;
    border: 1px solid var(--border);
    padding: 1rem;
}

.status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

.status-row:last-child {
    border-bottom: none;
}

.node-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pulse {
    width: 10px;
    height: 10px;
    background: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 0 rgba(16, 185, 129, 0.4);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.status-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .nav-links { display: none; }
}

/* Article Page specific */
.article-page {
    padding-top: 8rem;
}

.article-content {
    max-width: 800px;
    margin-bottom: 6rem;
}

.article-content h1 { margin-bottom: 1rem; }
.article-content .meta { color: var(--text-muted); margin-bottom: 3rem; }
.article-content h2 { margin: 2rem 0 1rem; }
.article-content h3 { margin: 1.5rem 0 0.5rem; }
.article-content p { margin-bottom: 1.5rem; color: #cbd5e1; font-size: 1.1rem; }

.cta-box {
    background: var(--glass);
    padding: 3rem;
    border-radius: 24px;
    margin-top: 4rem;
    text-align: center;
    border: 1px solid var(--primary);
}

.cta-box h3 { margin-bottom: 1rem; }
.cta-box p { margin-bottom: 2rem; }