/* css/styles.css */
:root {
    --bg-color: #0b0c10;
    --text-color: #c5c6c7;
    --primary-color: #66fcf1;
    --secondary-color: #45a29e;
    --card-bg: #1f2833;
    --border-color: rgba(255, 255, 255, 0.1);
    --hover-bg: #2b3a4a;
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
}

body {
    overflow-x: hidden;
    position: relative;
}

/* Background Canvas */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(11, 12, 16, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

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

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s;
}

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

.nav-btn {
    background: var(--primary-color);
    color: #000;
    padding: 0.5rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
}

.nav-btn:hover {
    background: var(--secondary-color);
    box-shadow: 0 0 10px var(--primary-color);
}

/* Sections */
section {
    padding: 6rem 2rem 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

h2.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #fff;
    position: relative;
}

h2.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    margin: 1rem auto 0;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-top: 8rem;
}

.hero h1 {
    font-size: 4rem;
    color: #fff;
    margin-bottom: 1.5rem;
    text-shadow: 0 0 20px rgba(102, 252, 241, 0.3);
}

.hero p {
    font-size: 1.25rem;
    max-width: 600px;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.cta-btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #000;
    padding: 1rem 3rem;
    font-size: 1.25rem;
    font-weight: bold;
    border-radius: 50px;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 15px rgba(102, 252, 241, 0.4);
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(102, 252, 241, 0.6);
}

/* Core Advantages */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.adv-card {
    background: var(--card-bg);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, border-color 0.3s;
}

.adv-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
}

.adv-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.adv-card h3 {
    color: #fff;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* Node Latency */
.latency-table-wrapper {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: auto;
    border: 1px solid var(--border-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

th, td {
    padding: 1.2rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-weight: 600;
}

.status-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 8px;
}

.status-online { background-color: #4caf50; box-shadow: 0 0 8px #4caf50; }
.ping-excellent { color: #4caf50; }
.ping-good { color: #ffeb3b; }

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.price-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    border: 1px solid var(--border-color);
    position: relative;
    display: flex;
    flex-direction: column;
}

.price-card.popular {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(102, 252, 241, 0.2);
    transform: scale(1.05);
    z-index: 10;
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: #000;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: bold;
}

.tier-name {
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 0.5rem;
}

.price {
    font-size: 2.5rem;
    color: var(--primary-color);
    font-weight: bold;
    margin-bottom: 1.5rem;
}

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

.features {
    list-style: none;
    margin-bottom: 2.5rem;
    flex-grow: 1;
}

.features li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
}

.features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.buy-btn {
    display: block;
    text-align: center;
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 0.75rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
}

.price-card.popular .buy-btn, .buy-btn:hover {
    background: var(--primary-color);
    color: #000;
}

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

.review-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.stars {
    color: #ffc107;
    margin-bottom: 1rem;
}

.review-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

.user-avatar {
    width: 40px;
    height: 40px;
    background: #333;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    color: var(--primary-color);
}

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

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

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
    color: #fff;
}

.faq-question:hover {
    background: var(--hover-bg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 1.5rem 1.5rem;
    max-height: 500px;
}

.faq-icon {
    transition: transform 0.3s;
    font-size: 1.5rem;
    line-height: 1;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

/* Knowledge Base */
.kb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.kb-link {
    display: block;
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.kb-link:hover {
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.kb-link h4 {
    color: #fff;
    margin-bottom: 0.5rem;
}

.kb-link p {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Footer */
footer {
    background: #000;
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer-links {
    margin-top: 1rem;
}

.footer-links a {
    color: var(--text-color);
    text-decoration: none;
    margin: 0 1rem;
    font-size: 0.9rem;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .price-card.popular {
        transform: none;
    }
}