:root {
  --bg-primary: #060913;
  --bg-secondary: #0c1222;
  --bg-card: rgba(16, 24, 45, 0.75);
  --bg-card-hover: rgba(22, 34, 64, 0.85);
  --bg-glass: rgba(12, 18, 34, 0.8);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(0, 242, 254, 0.4);
  --text-main: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --color-primary: #00f2fe;
  --color-accent: #4facfe;
  --color-purple: #8a2be2;
  --color-gradient: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #8a2be2 100%);
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --shadow-glow: 0 0 25px rgba(0, 242, 254, 0.25);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;
  --max-width: 1240px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

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

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

body {
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  background: radial-gradient(circle at 50% 0%, #111a38 0%, var(--bg-primary) 70%);
}

/* Background Ambient Glows */
.ambient-glow-1 {
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 450px;
  background: radial-gradient(ellipse at center, rgba(0, 242, 254, 0.12), transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.ambient-glow-2 {
  position: absolute;
  top: 45%;
  right: -100px;
  width: 600px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(138, 43, 226, 0.1), transparent 70%);
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
}

.ambient-glow-3 {
  position: absolute;
  top: 80%;
  left: -150px;
  width: 650px;
  height: 550px;
  background: radial-gradient(ellipse at center, rgba(79, 172, 254, 0.08), transparent 70%);
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
}

/* Layout container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.3;
}

.gradient-text {
  background: var(--color-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 56px auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.25);
  color: var(--color-primary);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.4rem;
  margin-bottom: 18px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Navbar */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.logo-icon {
  width: 38px;
  height: 38px;
  filter: drop-shadow(0 0 8px rgba(0, 242, 254, 0.4));
}

.brand-text-wrap {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.brand-domain {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-gradient);
  color: #030712;
  font-weight: 700;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.55);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-subtle);
  color: var(--text-main);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 14px 34px;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* Hero Section */
.hero-section {
  padding: 90px 0 60px 0;
  text-align: center;
  position: relative;
}

.hero-badge-wrap {
  margin-bottom: 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(138, 43, 226, 0.12);
  border: 1px solid rgba(138, 43, 226, 0.35);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  color: #c4b5fd;
  box-shadow: 0 0 15px rgba(138, 43, 226, 0.2);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary);
  animation: pulse 2s infinite;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 24px;
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 820px;
  margin: 0 auto 36px auto;
  line-height: 1.8;
}

.hero-keywords-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: 860px;
  margin: 0 auto 40px auto;
}

.keyword-pill {
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  color: #cbd5e1;
  transition: all 0.2s ease;
}

.keyword-pill:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(0, 242, 254, 0.05);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 60px;
}

.hero-metrics-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 36px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  max-width: 1000px;
  margin: 0 auto;
}

.metric-item {
  text-align: center;
}

.metric-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 4px;
  font-family: var(--font-sans);
}

.metric-label {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Features Grid */
.features-section {
  padding: 80px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  backdrop-filter: blur(12px);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

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

.feature-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.15), rgba(138, 43, 226, 0.15));
  border: 1px solid rgba(0, 242, 254, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  color: var(--color-primary);
}

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

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Pricing Section */
.pricing-section {
  padding: 90px 0;
  position: relative;
}

.pricing-cycle-switch {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 4px;
  margin: 0 auto 48px auto;
}

.cycle-btn {
  padding: 10px 24px;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
}

.cycle-btn.active {
  background: var(--color-gradient);
  color: #030712;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  backdrop-filter: blur(14px);
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-card), 0 0 35px rgba(0, 242, 254, 0.2);
}

.pricing-card.popular {
  border-color: rgba(0, 242, 254, 0.6);
  background: linear-gradient(180deg, rgba(16, 28, 56, 0.9) 0%, rgba(12, 18, 36, 0.85) 100%);
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.2);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-gradient);
  color: #030712;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  letter-spacing: 0.5px;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
}

.plan-header {
  margin-bottom: 20px;
}

.plan-name {
  font-size: 1.35rem;
  margin-bottom: 8px;
}

.plan-tagline {
  font-size: 0.88rem;
  color: var(--text-muted);
  min-height: 40px;
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.plan-price {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  color: var(--text-main);
  font-family: var(--font-sans);
}

.plan-period {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.plan-features-list {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.plan-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.check-icon {
  color: var(--color-primary);
  font-weight: bold;
  flex-shrink: 0;
  margin-top: 2px;
}

.plan-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.03);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 0.85rem;
}

.meta-item {
  color: #cbd5e1;
}

.meta-item span {
  color: var(--color-primary);
  font-weight: 600;
}

/* Probe & Realtime Node Section */
.nodes-section {
  padding: 70px 0;
}

.nodes-matrix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.node-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.25s ease;
}

.node-item:hover {
  border-color: rgba(0, 242, 254, 0.3);
  background: var(--bg-card-hover);
}

.node-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.node-flag {
  font-size: 1.6rem;
}

.node-name {
  font-weight: 600;
  font-size: 0.98rem;
}

.node-protocol {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.node-stats {
  text-align: right;
}

.node-ping {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-success);
  font-family: var(--font-mono);
}

.node-status {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Tutorials / Client Guide */
.client-section {
  padding: 80px 0;
}

.client-tabs-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-bottom: 36px;
}

.client-tab-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.client-tab-btn:hover, .client-tab-btn.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(0, 242, 254, 0.08);
}

.steps-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.timeline-step {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 30px;
  position: relative;
}

.step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-gradient);
  color: #030712;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.1rem;
}

.step-title {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.step-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Articles Section */
.articles-section {
  padding: 90px 0;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  text-decoration: none;
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-card), 0 0 25px rgba(0, 242, 254, 0.15);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.article-tag {
  background: rgba(0, 242, 254, 0.1);
  color: var(--color-primary);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.article-card-title {
  font-size: 1.18rem;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.45;
  transition: color 0.2s ease;
}

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

.article-card-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.article-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* Reviews / Testimonials */
.reviews-section {
  padding: 80px 0;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.review-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow-card);
}

.review-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00f2fe, #8a2be2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.reviewer-name {
  font-weight: 600;
  font-size: 1rem;
}

.reviewer-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.review-stars {
  color: #facc15;
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.review-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* FAQ Section */
.faq-section {
  padding: 80px 0 100px 0;
}

.faq-list {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-item:hover {
  border-color: var(--border-focus);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: transparent;
  border: none;
  text-align: left;
  color: var(--text-main);
  font-size: 1.08rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

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

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 24px 22px 24px;
}

/* CTA Strip */
.cta-strip {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.12) 0%, rgba(138, 43, 226, 0.15) 100%);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  text-align: center;
  margin: 40px 0 90px 0;
  position: relative;
  overflow: hidden;
}

.cta-strip-title {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.cta-strip-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 32px auto;
}

/* Footer & PBN Links Requirements */
.site-footer {
  background: #04060d;
  border-top: 1px solid var(--border-subtle);
  padding: 70px 0 35px 0;
  color: var(--text-secondary);
  position: relative;
  z-index: 10;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-top: 14px;
  max-width: 320px;
}

.footer-col-title {
  color: var(--text-main);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

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

/* PBN Outbound Dofollow Links Styling in Footer */
.pbn-link-item {
  color: var(--color-primary);
  font-weight: 600;
}

.pbn-link-item:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-bottom-bar {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-pbn-center-wrap {
  text-align: center;
  margin-top: 15px;
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  background: rgba(6, 9, 19, 0.98);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(20px);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transform: translateY(-150%);
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 999;
}

.mobile-drawer.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-link {
  font-size: 1.1rem;
  color: var(--text-main);
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.8rem;
  }
  .features-grid,
  .pricing-grid,
  .articles-grid,
  .reviews-grid,
  .steps-timeline {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .nodes-matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .desktop-nav, .nav-actions .btn-secondary {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-subtitle {
    font-size: 1.05rem;
  }
  .hero-metrics-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    padding: 20px;
  }
  .metric-number {
    font-size: 1.7rem;
  }
  .features-grid,
  .pricing-grid,
  .articles-grid,
  .reviews-grid,
  .steps-timeline,
  .nodes-matrix-grid {
    grid-template-columns: 1fr;
  }
  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom-bar {
    flex-direction: column;
    text-align: center;
  }
  .section-title {
    font-size: 1.85rem;
  }
  .cta-strip {
    padding: 36px 20px;
  }
  .cta-strip-title {
    font-size: 1.6rem;
  }
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.4; }
  100% { transform: scale(1); opacity: 1; }
}