:root {
    --primary: #22d3ee;
    --primary-dark: #0891b2;
    --secondary: #8b5cf6;
    --bg-dark: #0a0b1e;
    --bg-card: rgba(255, 255, 255, 0.05);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
    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 20px;
}

/* Header & Nav */
header {
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(10, 11, 30, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    transition: var(--transition);
}

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

/* Buttons */
.btn {
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 700;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(34, 211, 238, 0.3);
}

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

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

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 24px;
    background: linear-gradient(to right, #fff, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    color: var(--text-muted);
}

/* Star Background */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: radial-gradient(ellipse at bottom, #1B2735 0%, #090A0F 100%);
}

#stars, #stars2, #stars3 {
    width: 1px;
    height: 1px;
    background: transparent;
    position: absolute;
}

#stars {
    box-shadow: 1744px 1475px #FFF , 1913px 1342px #FFF, 1238px 1563px #FFF; /* Simplified for generation */
    animation: animStar 50s linear infinite;
}

@keyframes animStar {
    from { transform: translateY(0px); }
    to { transform: translateY(-2000px); }
}

/* Node Grid */
.nodes {
    padding: 100px 0;
    background: #0d0e26;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
}

.node-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.node-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 24px;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
}

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

.node-info {
    margin-bottom: 15px;
}

.flag { font-size: 2rem; display: block; margin-bottom: 10px; }
.name { font-weight: 600; }

.node-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 10px;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-indicator.online { background: #10b981; box-shadow: 0 0 10px #10b981; }

.latency-val { color: var(--primary); font-weight: 800; }

/* Pricing */
.pricing {
    padding: 100px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 40px;
    border-radius: 24px;
    position: relative;
    display: flex;
    flex-direction: column;
}

.pricing-card.featured {
    border: 2px solid var(--primary);
    background: rgba(34, 211, 238, 0.05);
}

.badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: #f59e0b;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 800;
}

.price {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 20px 0;
}

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

.features-list {
    list-style: none;
    margin-bottom: 40px;
    flex-grow: 1;
}

.features-list li {
    margin-bottom: 12px;
    color: var(--text-muted);
}

.card-btn { width: 100%; text-align: center; }

/* Articles */
.articles { padding: 100px 0; background: #0d0e26; }
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.article-card {
    background: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.article-card:hover { border-color: var(--primary); }

.article-content { padding: 30px; }
.article-content h3 { margin-bottom: 15px; font-size: 1.25rem; }
.article-content p { color: var(--text-muted); margin-bottom: 20px; font-size: 0.95rem; }
.read-more { color: var(--primary); text-decoration: none; font-weight: 700; }

/* Footer */
footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-links h4 { margin-bottom: 20px; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-muted); text-decoration: none; transition: var(--transition); }
.footer-links a:hover { color: var(--primary); }

.footer-bottom {
    text-align: center;
    border-top: 1px solid var(--border);
    padding-top: 40px;
    color: var(--text-muted);
}

/* Animations */
.animate-up {
    opacity: 0;
    transform: translateY(30px);
    animation: up 0.8s forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@keyframes up {
    to { opacity: 1; transform: translateY(0); }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .hero-stats { gap: 20px; }
    .nav-links { display: none; }
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
}