/* Reset & Base Styles */
:root {
    --bg-color: #050505;
    --bg-light: #111111;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --accent-color: #00d2ff;
    --accent-gradient: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 100%);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* Background Animations */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background: linear-gradient(-45deg, #090a0f, #1b2735, #0f172a, #050505);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

#stars {
    animation: animStar 50s linear infinite;
}
#stars2 {
    animation: animStar 100s linear infinite;
}
#stars3 {
    animation: animStar 150s linear infinite;
}

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

#stars, #stars2, #stars3 {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background: transparent;
}
/* A simple simulated starry background via box-shadow will be added via JS or minimal CSS for performance */

/* Typography & Utilities */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.section {
    padding: 100px 0;
}

.dark-section {
    background-color: rgba(0, 0, 0, 0.3);
}

.grid {
    display: grid;
    gap: 30px;
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 210, 255, 0.1);
    border-color: rgba(0, 210, 255, 0.3);
}

/* Buttons */
.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    transition: opacity 0.3s ease, transform 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-block;
    text-align: center;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.btn-secondary.outline {
    background: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-secondary.outline:hover {
    background: rgba(0, 210, 255, 0.1);
}

.large {
    padding: 15px 35px;
    font-size: 1.1rem;
}

.block {
    display: block;
    width: 100%;
}

.center-btn {
    text-align: center;
    margin-top: 40px;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color 0.3s ease, padding 0.3s ease;
    padding: 20px 0;
}

nav.scrolled {
    background-color: rgba(5, 5, 5, 0.85);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
}

.logo span {
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #fff;
}

.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #fff;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 60px;
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff, var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

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

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

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

.stat-num {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.stat-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Features */
.features-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.icon-wrapper {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.feature-card p {
    color: var(--text-secondary);
}

/* Node Status */
.status-board {
    max-width: 800px;
    margin: 0 auto;
    padding: 0;
    overflow: hidden;
}

.status-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid var(--glass-border);
    font-weight: 600;
    color: var(--text-secondary);
}

.node-item {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    padding: 15px 20px;
    border-bottom: 1px solid var(--glass-border);
    transition: background 0.3s ease;
}

.node-item:last-child {
    border-bottom: none;
}

.node-item:hover {
    background: rgba(255, 255, 255, 0.02);
}

.status-indicator {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #00e676;
    margin-right: 8px;
    box-shadow: 0 0 10px #00e676;
}

.latency {
    font-family: monospace;
    color: #00e676;
}

/* Pricing */
.pricing-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    align-items: center;
}

.price-card {
    position: relative;
    text-align: center;
}

.price-card.popular {
    transform: scale(1.05);
    border-color: var(--accent-color);
    box-shadow: 0 10px 40px rgba(0, 210, 255, 0.15);
}

.price-card.popular:hover {
    transform: scale(1.05) translateY(-5px);
}

.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-gradient);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    color: #fff;
}

.price-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 30px;
}

.currency, .period {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: normal;
}

.features-list {
    margin-bottom: 30px;
    text-align: left;
}

.features-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-secondary);
}

.features-list li:last-child {
    border-bottom: none;
}

.features-list li::before {
    content: '✓';
    color: var(--accent-color);
    margin-right: 10px;
    font-weight: bold;
}

/* Reviews */
.reviews-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.stars {
    color: #f39c12;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.review-text {
    font-style: italic;
    margin-bottom: 20px;
}

.reviewer {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.9rem;
}

/* FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 20px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 20px;
}

.faq-answer p {
    padding-bottom: 20px;
    color: var(--text-secondary);
}

.faq-item.active .faq-answer {
    max-height: 200px; /* Adjust as needed */
}

.arrow {
    transition: transform 0.3s ease;
}

.faq-item.active .arrow {
    transform: rotate(180deg);
}

/* Knowledge Base */
.knowledge-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.article-card {
    display: block;
}

.article-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #fff;
    transition: color 0.3s ease;
}

.article-card:hover h3 {
    color: var(--accent-color);
}

.article-date {
    font-size: 0.8rem;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.article-card p {
    font-size: 0.9rem;
}

/* Footer */
footer {
    background: #000;
    padding: 60px 0 20px;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-info h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.footer-info p {
    color: var(--text-secondary);
}

.footer-links h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

.footer-links a {
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-color);
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(5, 5, 5, 0.95);
        flex-direction: column;
        padding: 20px;
        text-align: center;
    }

    .nav-links.active {
        display: flex;
    }

    .hamburger {
        display: flex;
    }

    .nav-btn {
        display: none;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .stats-row {
        gap: 30px;
    }

    .price-card.popular {
        transform: none;
    }
    
    .price-card.popular:hover {
        transform: translateY(-5px);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}