:root {
    --bg-color: #030712;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --accent-cyan: #00f0ff;
    --accent-blue: #1d4ed8;
    --panel-bg: rgba(17, 24, 39, 0.7);
    --panel-border: rgba(0, 240, 255, 0.2);
    --glow-cyan: 0 0 15px rgba(0, 240, 255, 0.4);
    --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-main);
    line-height: 1.6;
    background-image: 
        linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: center top;
    background-attachment: fixed;
    overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3 {
    color: #fff;
    font-weight: 600;
    letter-spacing: 1px;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    text-transform: uppercase;
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
}

a {
    color: var(--text-main);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--accent-cyan);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 4px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    white-space: nowrap;
    word-break: keep-all;
    writing-mode: horizontal-tb;
}

.btn-primary {
    background: linear-gradient(45deg, var(--accent-blue), #00a2ff);
    color: #fff;
    box-shadow: var(--glow-cyan);
    border: 1px solid var(--accent-cyan);
}

.btn-primary:hover {
    background: linear-gradient(45deg, #00a2ff, var(--accent-cyan));
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.6);
    color: #000;
}

.btn-outline {
    background: transparent;
    color: var(--accent-cyan);
    border: 1px solid var(--accent-cyan);
}

.btn-outline:hover {
    background: rgba(0, 240, 255, 0.1);
    box-shadow: var(--glow-cyan);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(3, 7, 18, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--panel-border);
    z-index: 1000;
    padding: 15px 0;
}

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

.brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
    text-shadow: var(--glow-cyan);
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand::before {
    content: '';
    display: block;
    width: 20px;
    height: 20px;
    background: var(--accent-cyan);
    clip-path: polygon(50% 0%, 100% 100%, 50% 80%, 0% 100%);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.lang-switch {
    font-size: 0.9rem;
    color: var(--text-muted);
    cursor: pointer;
}

.lang-switch:hover {
    color: var(--accent-cyan);
}

/* Hero Section */
.hero {
    padding: 180px 0 100px;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 70%);
    z-index: -1;
}

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

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 40px;
}

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

/* Trust Section */
.trust-bar {
    border-top: 1px solid var(--panel-border);
    border-bottom: 1px solid var(--panel-border);
    background: rgba(0, 240, 255, 0.02);
    padding: 20px 0;
}

.trust-container {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--accent-cyan);
    font-size: 0.9rem;
}

.trust-item::before {
    content: '✓';
    display: inline-block;
    width: 20px;
    height: 20px;
    line-height: 20px;
    text-align: center;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--accent-cyan);
    border-radius: 50%;
}

/* Stats Section */
.stats {
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-card {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    padding: 40px 20px;
    text-align: center;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
    animation: scanline 3s infinite linear;
}

@keyframes scanline {
    0% { left: -100%; }
    100% { left: 100%; }
}

.stat-num {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 10px;
    font-family: 'Courier New', Courier, monospace;
}

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

/* Features Section */
.features {
    padding: 80px 0;
    background: rgba(0, 0, 0, 0.3);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.feature-card {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    padding: 40px 30px;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--glow-cyan);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--accent-cyan);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--accent-cyan);
    font-size: 1.5rem;
}

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

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

.feature-image {
    width: 100%;
    height: auto;
    object-fit: contain;
    object-position: center;
    display: block;
    margin-top: 20px;
    border: 1px solid var(--panel-border);
    border-radius: 4px;
}

/* Nodes Section */
.nodes {
    padding: 80px 0;
}

.nodes-map {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 40px;
    position: relative;
}

.nodes-list {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 30px;
}

.node-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.node-dot {
    width: 12px;
    height: 12px;
    background: var(--accent-cyan);
    border-radius: 50%;
    box-shadow: var(--glow-cyan);
}

.node-city {
    font-weight: bold;
    color: #fff;
}

.node-speed {
    font-size: 0.8rem;
    color: var(--accent-cyan);
}

/* Testimonials */
.testimonials {
    padding: 80px 0;
    background: rgba(0, 0, 0, 0.3);
}

.testi-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testi-card {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    padding: 30px;
    border-radius: 8px;
}

.stars {
    color: #ffd700;
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.testi-text {
    font-style: italic;
    margin-bottom: 20px;
    color: var(--text-muted);
}

.testi-user {
    display: flex;
    align-items: center;
    gap: 15px;
}

.testi-avatar {
    width: 40px;
    height: 40px;
    background: rgba(0, 240, 255, 0.2);
    border: 1px solid var(--accent-cyan);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--accent-cyan);
}

/* Pricing */
.pricing {
    padding: 80px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: center;
}

.price-card {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    position: relative;
}

.price-card.recommended {
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
    transform: scale(1.05);
    background: rgba(13, 71, 161, 0.2);
}

.tag-rec {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-cyan);
    color: #000;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
}

.price-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 20px;
}

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

.price-features {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.price-features li {
    margin-bottom: 10px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 10px;
}

.price-features li::before {
    content: '✓';
    color: var(--accent-cyan);
}

/* FAQ */
.faq {
    padding: 80px 0;
    background: rgba(0, 0, 0, 0.3);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    margin-bottom: 20px;
    border-radius: 8px;
    padding: 25px;
}

.faq-q {
    font-size: 1.2rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 15px;
}

.faq-a {
    color: var(--text-muted);
}

/* Footer */
.footer {
    border-top: 1px solid var(--panel-border);
    padding: 60px 0 20px;
    background: #02040a;
}

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

.footer-brand {
    color: var(--text-muted);
}

.footer-brand .brand {
    margin-bottom: 20px;
}

.footer-links h4 {
    color: #fff;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    color: var(--text-muted);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Download Page Specific */
.download-hero {
    padding: 150px 0 80px;
    text-align: center;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 800px;
    margin: 0 auto 80px;
}

.dl-card {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    padding: 40px;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
}

.dl-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
}

.dl-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

/* Help Page Specific */
.help-hero {
    padding: 150px 0 80px;
    text-align: center;
}

.help-grid {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: 40px;
    margin-bottom: 80px;
}

.help-nav {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    padding: 20px;
    border-radius: 8px;
    height: fit-content;
}

.help-nav ul {
    list-style: none;
}

.help-nav li {
    margin-bottom: 15px;
}

.help-nav a {
    color: var(--text-muted);
    display: block;
    padding: 8px 12px;
    border-radius: 4px;
}

.help-nav a:hover, .help-nav a.active {
    background: rgba(0, 240, 255, 0.1);
    color: var(--accent-cyan);
}

.help-content section {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    padding: 40px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.help-content h3 {
    margin-bottom: 20px;
    color: var(--accent-cyan);
}

/* Responsive */
@media (max-width: 992px) {
    .stats-grid, .features-grid, .testi-grid, .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .stats-grid, .features-grid, .testi-grid, .pricing-grid, .download-grid {
        grid-template-columns: 1fr;
    }
    .help-grid {
        grid-template-columns: 1fr;
    }
    .price-card.recommended {
        transform: scale(1);
    }
}