/* Crushcloud Cyber Tech Style Sheet - crush91.cyou */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800&family=Orbitron:wght@500;700;900&display=swap');

:root {
    --bg-main: #060913;
    --bg-card: rgba(13, 20, 36, 0.7);
    --bg-card-hover: rgba(22, 33, 58, 0.85);
    --accent-cyan: #00f2fe;
    --accent-blue: #4facfe;
    --accent-purple: #7000ff;
    --accent-green: #00ff88;
    --accent-pink: #ff007f;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: rgba(0, 242, 254, 0.15);
    --border-glow: rgba(0, 242, 254, 0.4);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --shadow-neon: 0 0 20px rgba(0, 242, 254, 0.2);
    --font-heading: 'Orbitron', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
}

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

/* Background Effects */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    opacity: 0.85;
}

.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: 
        linear-gradient(rgba(0, 242, 254, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 242, 254, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    pointer-events: none;
}

/* Container */
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, .tech-title {
    font-family: var(--font-heading);
    letter-spacing: 0.5px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 50%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.gradient-text-alt {
    background: linear-gradient(135deg, #fff 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(6, 9, 19, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    color: #fff;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-neon);
}

.logo-icon svg {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: #fff;
    stroke-width: 2;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--accent-cyan);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: #040814;
    box-shadow: 0 0 25px rgba(0, 242, 254, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 35px rgba(0, 242, 254, 0.7);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(0, 242, 254, 0.1);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.btn-pulse {
    animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
    0% { box-shadow: 0 0 0 0 rgba(0, 242, 254, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(0, 242, 254, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 242, 254, 0); }
}

/* Mobile Nav Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    padding: 160px 0 90px;
    text-align: center;
    position: relative;
}

.badge-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(0, 242, 254, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    font-size: 0.85rem;
    color: var(--accent-cyan);
    margin-bottom: 24px;
    font-weight: 600;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-green);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 40px;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 60px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px;
    backdrop-filter: blur(10px);
}

.stat-item h3 {
    font-size: 2rem;
    color: var(--accent-cyan);
    margin-bottom: 5px;
}

.stat-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.3rem;
    margin-bottom: 16px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 650px;
    margin: 0 auto;
}

/* Section Padding */
.section {
    padding: 90px 0;
    position: relative;
}

/* Live Speed Monitor Dashboard (Directive 5) */
.speed-dashboard {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px;
    backdrop-filter: blur(15px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.dashboard-title {
    display: flex;
    align-items: center;
    gap: 12px;
}

.dashboard-title h3 {
    font-size: 1.4rem;
}

.live-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 255, 136, 0.1);
    color: var(--accent-green);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

.pulse-ring {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    position: relative;
}

.pulse-ring::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    width: 16px;
    height: 16px;
    border: 2px solid var(--accent-green);
    border-radius: 50%;
    animation: ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
    75%, 100% { transform: scale(2); opacity: 0; }
}

.nodes-table-wrapper {
    overflow-x: auto;
}

.nodes-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.nodes-table th {
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border-color);
}

.nodes-table td {
    padding: 18px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.95rem;
}

.nodes-table tr:hover td {
    background: rgba(0, 242, 254, 0.05);
}

.node-name {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
}

.flag-icon {
    font-size: 1.2rem;
}

.latency-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-weight: 700;
    font-family: var(--font-heading);
    font-size: 0.85rem;
}

.latency-low {
    background: rgba(0, 255, 136, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.latency-mid {
    background: rgba(0, 242, 254, 0.15);
    color: var(--accent-cyan);
    border: 1px solid rgba(0, 242, 254, 0.3);
}

.speed-bar-container {
    width: 120px;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    display: inline-block;
    vertical-align: middle;
    margin-right: 10px;
}

.speed-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green));
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-neon);
    background: var(--bg-card-hover);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(0, 242, 254, 0.1);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--accent-cyan);
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--accent-cyan);
    fill: none;
    stroke-width: 2;
}

.feature-title {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 24px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card.featured {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 30px rgba(0, 242, 254, 0.3);
    background: rgba(16, 28, 54, 0.85);
    transform: scale(1.03);
}

.badge-popular {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: #040814;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
}

.plan-name {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.plan-price {
    font-size: 2.4rem;
    font-weight: 900;
    font-family: var(--font-heading);
    color: #fff;
    margin-bottom: 6px;
}

.plan-price span {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 400;
}

.plan-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.plan-features {
    list-style: none;
    margin-bottom: 30px;
    flex-grow: 1;
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.plan-features li svg {
    width: 18px;
    height: 18px;
    stroke: var(--accent-cyan);
    flex-shrink: 0;
}

/* SEO Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
}

.article-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.article-tag {
    font-size: 0.75rem;
    color: var(--accent-cyan);
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.article-title {
    font-size: 1.1rem;
    line-height: 1.4;
    margin-bottom: 12px;
    color: #fff;
}

.article-excerpt {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 12px;
}

/* Reviews / Testimonials Section */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.review-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px;
    position: relative;
}

.stars {
    color: #ffb800;
    margin-bottom: 14px;
    font-size: 1.1rem;
}

.review-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-style: italic;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
}

.user-details h4 {
    font-size: 0.95rem;
    color: #fff;
}

.user-details p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* FAQ Accordion Section */
.faq-list {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

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

.faq-question {
    width: 100%;
    padding: 22px 28px;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.05rem;
    font-weight: 600;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: rgba(0, 242, 254, 0.05);
}

.faq-icon {
    font-size: 1.4rem;
    color: var(--accent-cyan);
    transition: transform 0.3s ease;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0, 1, 0, 1);
    padding: 0 28px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 28px 22px;
}

/* Banner CTA */
.cta-banner {
    background: linear-gradient(135deg, rgba(0, 242, 254, 0.15), rgba(112, 0, 255, 0.15));
    border: 1px solid var(--accent-cyan);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    box-shadow: 0 0 50px rgba(0, 242, 254, 0.2);
}

.cta-banner h2 {
    font-size: 2.4rem;
    margin-bottom: 16px;
}

.cta-banner p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 30px;
    font-size: 1.1rem;
}

/* FOOTER SECTION & PBN FRIENDSHIP LINKS (Core Task 2) */
footer {
    background: #03050b;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 60px 0 30px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    position: relative;
    z-index: 10;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: #fff;
}

.footer-nav {
    display: flex;
    gap: 24px;
    list-style: none;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color 0.3s ease;
}

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

/* PBN Friendship Links Area - Subtle, Elegant, Dofollow Links */
.friendship-links {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px dashed rgba(255, 255, 255, 0.08);
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.friendship-links span {
    color: #475569;
    font-weight: 500;
}

.friendship-links a {
    color: #64748b;
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 400;
}

.friendship-links a:hover {
    color: var(--accent-cyan);
    text-decoration: underline;
}

.copyright {
    margin-top: 10px;
    font-size: 0.8rem;
    color: #475569;
}

/* Article Detail Styles */
.article-page {
    padding-top: 130px;
    padding-bottom: 90px;
}

.article-container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 50px;
    backdrop-filter: blur(15px);
}

.article-header {
    margin-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 30px;
}

.article-header h1 {
    font-size: 2.2rem;
    line-height: 1.35;
    margin-bottom: 20px;
}

.article-body {
    font-size: 1.05rem;
    line-height: 1.85;
    color: #cbd5e1;
}

.article-body h2 {
    font-size: 1.6rem;
    color: var(--accent-cyan);
    margin: 40px 0 16px;
    border-left: 4px solid var(--accent-cyan);
    padding-left: 14px;
}

.article-body h3 {
    font-size: 1.25rem;
    color: #fff;
    margin: 28px 0 12px;
}

.article-body p {
    margin-bottom: 20px;
}

.article-body ul, .article-body ol {
    margin: 0 0 24px 24px;
}

.article-body li {
    margin-bottom: 8px;
}

.article-body strong {
    color: #fff;
}

.article-cta-box {
    margin: 40px 0;
    padding: 30px;
    background: linear-gradient(135deg, rgba(0, 242, 254, 0.1), rgba(112, 0, 255, 0.1));
    border: 1px solid var(--accent-cyan);
    border-radius: var(--radius-md);
    text-align: center;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .pricing-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .features-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
    }
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(6, 9, 19, 0.98);
        flex-direction: column;
        justify-content: center;
        transition: 0.3s ease;
    }
    .nav-menu.active {
        left: 0;
    }
    .hero-title {
        font-size: 2.2rem;
    }
    .pricing-grid, .articles-grid, .features-grid, .reviews-grid {
        grid-template-columns: 1fr;
    }
    .pricing-card.featured {
        transform: none;
    }
    .article-container {
        padding: 24px;
    }
}