/* Custom Fonts */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* Color Variables */
:root {
  --bg-dark: #0a0b10;
  --bg-card: rgba(18, 19, 26, 0.75);
  --bg-card-hover: rgba(28, 30, 41, 0.9);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-glow: rgba(0, 242, 254, 0.4);
  
  --primary-glow: linear-gradient(135deg, #ff007f 0%, #7b2cbf 50%, #00f2fe 100%);
  --btn-gradient: linear-gradient(135deg, #ff007f 0%, #00f2fe 100%);
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-cyan: #00f2fe;
  --text-magenta: #ff007f;
  
  --font-title: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-body: 'Outfit', system-ui, -apple-system, sans-serif;
  
  --glow-shadow: 0 0 20px rgba(0, 242, 254, 0.25);
  --glow-shadow-magenta: 0 0 20px rgba(255, 0, 127, 0.25);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
  color: var(--text-main);
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: radial-gradient(circle at 50% 0%, #15102a 0%, var(--bg-dark) 60%);
  background-attachment: fixed;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-cyan);
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 50px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-smooth);
}

.btn-primary {
  background: var(--btn-gradient);
  color: #fff;
  border: none;
  box-shadow: var(--glow-shadow-magenta);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.5);
}

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

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-cyan);
  color: var(--text-cyan);
  transform: translateY(-2px);
}

.btn-outline-glow {
  background: transparent;
  color: var(--text-cyan);
  border: 1px solid var(--text-cyan);
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
}

.btn-outline-glow:hover {
  background: rgba(0, 242, 254, 0.1);
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.3);
  transform: translateY(-2px);
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 11, 16, 0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-smooth);
}

header.scrolled {
  background: rgba(10, 11, 16, 0.9);
  padding: 10px 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  transition: var(--transition-smooth);
}

header.scrolled .nav-container {
  height: 65px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.5rem;
  color: #fff;
  text-decoration: none;
  background: var(--btn-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-dot {
  width: 10px;
  height: 10px;
  background: var(--text-cyan);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 10px var(--text-cyan);
  animation: logoPulse 2s infinite ease-in-out;
}

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

.nav-links a {
  font-family: var(--font-title);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition-smooth);
  position: relative;
  padding: 8px 0;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-cyan);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--btn-gradient);
  transition: var(--transition-smooth);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  display: flex;
  align-items: center;
}

.burger {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
}

.burger span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--text-main);
  transition: var(--transition-smooth);
}

/* Canvas background decoration */
#hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

/* Sections */
section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px auto;
}

.section-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.2);
  border-radius: 50px;
  color: var(--text-cyan);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
  font-family: var(--font-title);
}

.section-title {
  font-family: var(--font-title);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 140px;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
}

.hero-wrapper {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 48px;
}

.hero-title {
  font-family: var(--font-title);
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero-title span {
  background: var(--btn-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  position: relative;
}

.hero-desc {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 600px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  border-top: 1px solid var(--border-color);
  padding-top: 32px;
}

.stat-number {
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.stat-number span {
  color: var(--text-cyan);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Hero Visual Art (Mockup of dynamic client) */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.visual-glowing-back {
  position: absolute;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(255, 0, 127, 0.15) 0%, rgba(0, 242, 254, 0.15) 50%, transparent 70%);
  filter: blur(40px);
  animation: floatLight 8s infinite alternate ease-in-out;
}

.visual-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 32px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(10px);
  position: relative;
  z-index: 2;
  transition: var(--transition-smooth);
}

.visual-container:hover {
  transform: translateY(-5px);
  border-color: var(--border-color-glow);
  box-shadow: var(--glow-shadow);
}

.client-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
}

.client-title {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.client-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.node-speedometer {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 24px;
}

.speed-value {
  font-family: var(--font-title);
  font-size: 3.2rem;
  font-weight: 700;
  color: var(--text-cyan);
  line-height: 1;
}

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

.speed-progress-bar {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  margin-top: 16px;
  position: relative;
  overflow: hidden;
}

.speed-progress-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 85%;
  background: var(--btn-gradient);
  border-radius: 10px;
  animation: speedPulse 3s infinite alternate ease-in-out;
}

.client-details {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.client-detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.client-detail-label {
  color: var(--text-muted);
}

.client-detail-val {
  font-weight: 600;
  color: #fff;
}

/* Selling Points / Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 40px 32px;
  transition: var(--transition-smooth);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 0, 127, 0.03) 0%, rgba(0, 242, 254, 0.03) 100%);
  opacity: 0;
  transition: var(--transition-smooth);
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 242, 254, 0.25);
  box-shadow: 0 12px 30px rgba(0, 242, 254, 0.05);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  color: var(--text-cyan);
  font-size: 1.5rem;
  transition: var(--transition-smooth);
}

.feature-card:hover .feature-icon-wrapper {
  color: #fff;
  background: var(--btn-gradient);
  border-color: transparent;
  box-shadow: var(--glow-shadow-magenta);
}

.feature-title {
  font-family: var(--font-title);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 16px;
}

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

/* Pricing Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 48px 36px;
  position: relative;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(10px);
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* Highlighted VIP2 recommended plan */
.pricing-card.recommended {
  border: 2px solid transparent;
  background-clip: padding-box, border-box;
  background-origin: padding-box, border-box;
  background-image: linear-gradient(var(--bg-dark), var(--bg-dark)), var(--primary-glow);
  box-shadow: 0 15px 35px rgba(255, 0, 127, 0.15);
  transform: translateY(-8px);
}

.pricing-card.recommended:hover {
  box-shadow: 0 20px 45px rgba(0, 242, 254, 0.25);
  transform: translateY(-12px);
}

.pricing-badge {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--btn-gradient);
  color: #fff;
  padding: 6px 18px;
  border-radius: 50px;
  font-family: var(--font-title);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  box-shadow: var(--glow-shadow-magenta);
}

.plan-header {
  margin-bottom: 28px;
}

.plan-name {
  font-family: var(--font-title);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.plan-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  height: 40px;
}

.plan-price-wrapper {
  display: flex;
  align-items: baseline;
  margin-bottom: 32px;
}

.price-currency {
  font-family: var(--font-title);
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  margin-right: 4px;
}

.price-amount {
  font-family: var(--font-title);
  font-size: 4rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.pricing-card.recommended .price-amount {
  background: var(--btn-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.price-period {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-left: 8px;
}

.plan-features {
  list-style: none;
  margin-bottom: 40px;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.95rem;
  color: var(--text-main);
}

.plan-features li i {
  color: var(--text-cyan);
  font-size: 1.1rem;
}

.pricing-card.recommended .plan-features li i {
  color: var(--text-magenta);
}

.plan-cta {
  width: 100%;
}

.pricing-card.recommended .plan-cta {
  background: var(--btn-gradient);
  box-shadow: var(--glow-shadow-magenta);
}

/* Comparison Section */
.comparison-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  backdrop-filter: blur(10px);
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
}

.comparison-table th,
.comparison-table td {
  padding: 18px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
}

.comparison-table th:first-child {
  width: 30%;
}

.comparison-table th:not(:first-child) {
  text-align: center;
}

.comparison-table td:not(:first-child) {
  text-align: center;
}

.comparison-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.comparison-table td.highlight-column {
  color: var(--text-cyan);
  font-weight: 600;
  background: rgba(0, 242, 254, 0.02);
}

.badge-yes {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #10b981;
  font-weight: 600;
}

.badge-no {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #ef4444;
  font-weight: 600;
}

/* Tutorials Section */
.tutorials-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.tab-nav {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  list-style: none;
}

.tab-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 14px 28px;
  border-radius: 50px;
  font-family: var(--font-title);
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  gap: 10px;
}

.tab-btn:hover {
  border-color: var(--text-cyan);
  color: var(--text-cyan);
}

.tab-btn.active {
  background: var(--btn-gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--glow-shadow-magenta);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

.tutorial-step-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.tutorial-step-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 28px 32px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  transition: var(--transition-smooth);
}

.tutorial-step-item:hover {
  border-color: rgba(0, 242, 254, 0.2);
  transform: translateX(5px);
}

.step-number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid var(--text-cyan);
  color: var(--text-cyan);
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

.step-details h4 {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: #fff;
}

.step-details p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.step-details code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: monospace;
  color: var(--text-cyan);
}

/* User Reviews Section */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px;
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}

.review-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 0, 127, 0.15);
}

.review-stars {
  color: #fbbf24;
  margin-bottom: 16px;
  font-size: 1rem;
}

.review-text {
  color: var(--text-main);
  font-size: 0.95rem;
  margin-bottom: 24px;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1f1c2c 0%, #928dab 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  border: 2px solid var(--border-color);
}

.author-info h5 {
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
}

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

/* FAQ Section */
.faq-wrapper {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.faq-header {
  padding: 24px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.faq-header h4 {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
}

.faq-icon {
  font-size: 1.2rem;
  color: var(--text-cyan);
  transition: var(--transition-smooth);
}

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: var(--transition-smooth);
  background: rgba(0, 0, 0, 0.1);
}

.faq-content {
  padding: 0 32px 24px 32px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.faq-item.open .faq-body {
  max-height: 300px; /* Arbitrary large enough height */
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  color: var(--text-magenta);
}

/* Knowledge Base / Articles Section */
.kb-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.kb-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  text-decoration: none;
  color: inherit;
}

.kb-card:hover {
  transform: translateY(-5px);
  border-color: var(--text-cyan);
  box-shadow: 0 8px 24px rgba(0, 242, 254, 0.08);
}

.kb-card-tag {
  font-family: var(--font-title);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-magenta);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.kb-card-title {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
  color: #fff;
  margin-bottom: 16px;
  flex-grow: 1;
  transition: var(--transition-smooth);
}

.kb-card:hover .kb-card-title {
  color: var(--text-cyan);
}

.kb-card-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;
}

.kb-more {
  text-align: center;
  margin-top: 48px;
}

/* Tag Cloud (60 tags) Section */
.tags-cloud-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px;
  backdrop-filter: blur(10px);
}

.tags-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 14px;
}

.tag-item {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  color: var(--text-muted);
  font-size: 0.82rem;
  text-decoration: none;
  transition: var(--transition-smooth);
}

.tag-item:hover {
  background: rgba(0, 242, 254, 0.08);
  border-color: var(--text-cyan);
  color: var(--text-cyan);
  transform: scale(1.05);
}

/* Call to Action Banner */
.cta-banner {
  background: linear-gradient(135deg, rgba(255, 0, 127, 0.2) 0%, rgba(0, 242, 254, 0.2) 100%), var(--bg-card);
  border: 1px solid rgba(0, 242, 254, 0.2);
  border-radius: 28px;
  padding: 60px 48px;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  backdrop-filter: blur(15px);
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  font-family: var(--font-title);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-banner p {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto 32px auto;
}

/* Footer */
footer {
  background: #06070a;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}

.footer-about h4 {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-about p {
  line-height: 1.6;
}

.footer-column h5 {
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}

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

.footer-column ul a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.footer-column ul a:hover {
  color: var(--text-cyan);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition-smooth);
}

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

/* Article Template Styles */
.article-page {
  padding-top: 120px;
}

.article-header {
  margin-bottom: 48px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.breadcrumb a:hover {
  color: var(--text-cyan);
}

.article-title-main {
  font-family: var(--font-title);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 24px;
}

.article-meta-large {
  display: flex;
  gap: 24px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.article-meta-large span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-meta-large i {
  color: var(--text-cyan);
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}

.article-content-body {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 48px;
  backdrop-filter: blur(10px);
}

.article-content-body h2 {
  font-family: var(--font-title);
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  margin: 40px 0 20px 0;
  border-left: 4px solid var(--text-cyan);
  padding-left: 16px;
}

.article-content-body h2:first-of-type {
  margin-top: 0;
}

.article-content-body h3 {
  font-family: var(--font-title);
  font-size: 1.35rem;
  font-weight: 600;
  color: #fff;
  margin: 30px 0 15px 0;
}

.article-content-body p {
  margin-bottom: 20px;
  color: #d1d5db;
  font-size: 1.05rem;
  line-height: 1.8;
}

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

.article-content-body ul, 
.article-content-body ol {
  margin: 0 0 24px 24px;
  color: #d1d5db;
  font-size: 1.05rem;
}

.article-content-body li {
  margin-bottom: 8px;
  line-height: 1.7;
}

.article-content-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 32px 0;
  font-size: 0.95rem;
}

.article-content-body th,
.article-content-body td {
  padding: 12px 16px;
  text-align: left;
  border: 1px solid var(--border-color);
}

.article-content-body th {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.article-content-body blockquote {
  background: rgba(0, 242, 254, 0.03);
  border-left: 4px solid var(--text-cyan);
  padding: 20px 24px;
  margin: 24px 0;
  border-radius: 0 12px 12px 0;
}

.article-content-body blockquote p {
  margin-bottom: 0;
  font-style: italic;
  color: #9ca3af;
}

.article-content-body a {
  color: var(--text-cyan);
  text-decoration: underline;
  transition: var(--transition-smooth);
}

.article-content-body a:hover {
  color: var(--text-magenta);
}

/* Sidebar Styles */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 32px;
  position: sticky;
  top: 100px;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 28px;
}

.widget-title {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.sidebar-widget-cta {
  background: linear-gradient(135deg, rgba(255, 0, 127, 0.15) 0%, rgba(0, 242, 254, 0.15) 100%), var(--bg-card);
  border: 1px solid var(--text-cyan);
  text-align: center;
}

.sidebar-widget-cta p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

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

.sidebar-links a {
  font-size: 0.95rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition-smooth);
  display: block;
}

.sidebar-links a:hover {
  color: var(--text-cyan);
  padding-left: 4px;
}

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

.toc-link {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.toc-link:hover {
  color: var(--text-cyan);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes logoPulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 10px var(--text-cyan); }
  50% { transform: scale(1.2); box-shadow: 0 0 20px var(--text-cyan), 0 0 30px var(--text-magenta); }
}

@keyframes floatLight {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-20px, 30px) scale(1.1); }
  100% { transform: translate(30px, -20px) scale(0.9); }
}

@keyframes speedPulse {
  0%, 100% { width: 80%; }
  50% { width: 95%; }
}

/* Responsive Grid and Typography */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 3.2rem;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .pricing-card.recommended {
    grid-column: span 2;
    order: -1;
  }
  .kb-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  section {
    padding: 60px 0;
  }
  .hero {
    padding-top: 100px;
    padding-bottom: 60px;
  }
  .hero-wrapper {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 32px;
  }
  .hero-title {
    font-size: 2.8rem;
  }
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-buttons {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .pricing-card.recommended {
    grid-column: span 1;
  }
  .kb-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background: var(--bg-dark);
    flex-direction: column;
    padding: 40px 24px;
    gap: 24px;
    border-top: 1px solid var(--border-color);
  }
  .nav-links.active {
    display: flex;
  }
  .burger {
    display: flex;
  }
  .burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }
  .burger.active span:nth-child(2) {
    opacity: 0;
  }
  .burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
  .nav-cta {
    display: none;
  }
  .tab-nav {
    flex-wrap: wrap;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}