/* Import premium font */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --font-title: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Color Palette: Sky Blue & Gold Accent */
  --bg-gradient: linear-gradient(135deg, #091c36 0%, #030814 100%);
  --bg-dark: #030814;
  --bg-card: rgba(12, 22, 43, 0.55);
  --bg-card-hover: rgba(18, 33, 64, 0.7);
  
  --primary: #cba135; /* Gold/Amber like the image button */
  --primary-rgb: 203, 161, 53;
  --primary-light: #e5ba73;
  --secondary: #38bdf8; /* Sky Blue */
  --secondary-rgb: 56, 189, 248;
  --accent: #0284c7; /* Sky blue dark accent */
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-inverse: #030814;
  
  --border-color: rgba(255, 255, 255, 0.05);
  --border-color-hover: rgba(203, 161, 53, 0.3);
  
  --glow-primary: 0 0 20px rgba(203, 161, 53, 0.25);
  --glow-secondary: 0 0 20px rgba(56, 189, 248, 0.25);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
  --radius: 12px;
  
  --max-width: 1200px;
}

/* Reset and Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg-dark);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Ambient 3D Interactive Canvas */
#canvas-3d {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  background: transparent;
  opacity: 0.65;
}

/* Background Glowing Blobs (Sky Blue & Blurred) */
.blob-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  -webkit-filter: blur(120px);
  opacity: 0.28;
  animation: float 25s infinite ease-in-out alternate;
}

/* Sky blue background blur blobs */
.blob-1 {
  top: 5%;
  left: 10%;
  width: 500px;
  height: 500px;
  background: #0284c7; /* Sky blue */
  animation-duration: 28s;
}

.blob-2 {
  top: 35%;
  right: 5%;
  width: 600px;
  height: 600px;
  background: #38bdf8; /* Light sky blue */
  animation-duration: 22s;
  animation-delay: -7s;
}

.blob-3 {
  top: 70%;
  left: 15%;
  width: 450px;
  height: 450px;
  background: #0ea5e9; /* Cyan-ish sky blue */
  animation-duration: 32s;
  animation-delay: -12s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -60px) scale(1.15); }
  100% { transform: translate(-30px, 30px) scale(0.9); }
}

/* Layout Utilities */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

.section {
  padding: 80px 0;
  position: relative;
}

.section-title {
  font-family: var(--font-title);
  font-size: 2.3rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #fff 40%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto 3.5rem auto;
}

/* Glassmorphism Card Base */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-card:hover {
  transform: translateY(-5px);
  background: var(--bg-card-hover);
  border-color: var(--border-color-hover);
}

/* Buttons (Matching the design of 歪兔 YTOO) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2.2rem;
  font-family: var(--font-title);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, #e5ba73 0%, #cba135 100%); /* Gold tone */
  color: var(--text-inverse);
  box-shadow: 0 4px 15px rgba(203, 161, 53, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(203, 161, 53, 0.5);
  background: linear-gradient(135deg, #f0cf8e 0%, #dcae3a 100%);
}

.btn-outline {
  background: transparent;
  color: var(--primary-light);
  border: 1px solid rgba(203, 161, 53, 0.4);
}

.btn-outline:hover {
  background: rgba(203, 161, 53, 0.08);
  border-color: var(--primary-light);
  transform: translateY(-2px);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

/* Secondary Button for Navbar */
.btn-nav-outline {
  background: transparent;
  color: var(--primary-light);
  border: 1px solid rgba(203, 161, 53, 0.6);
  padding: 0.5rem 1.6rem;
  font-size: 0.85rem;
}

.btn-nav-outline:hover {
  background: rgba(203, 161, 53, 0.1);
  border-color: var(--primary-light);
  box-shadow: 0 0 12px rgba(203, 161, 53, 0.3);
}

/* Header & Navbar */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all 0.3s ease;
  padding: 1.4rem 0;
}

.header.scrolled {
  background: rgba(3, 8, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  padding: 0.9rem 0;
}

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

.logo {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.logo span {
  font-weight: 500;
  font-size: 1rem;
  color: var(--primary-light);
  letter-spacing: 1px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.2rem;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.3s;
}

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

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  background: transparent;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  transition: 0.3s;
}

/* Hero Section (Matching YTOO Layout: 2 Columns) */
.hero {
  padding-top: 170px;
  padding-bottom: 110px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-left {
  text-align: left;
}

.hero-title {
  font-family: var(--font-title);
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 1.2rem;
  color: #ffffff;
}

.hero-title span {
  background: linear-gradient(135deg, #ffffff 40%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

/* Three buttons arranged layout from YTOO image */
.hero-buttons-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 440px;
}

.hero-buttons-row-1 {
  display: flex;
  gap: 1rem;
}

.hero-buttons-row-1 .btn {
  flex: 1;
}

.hero-buttons-row-2 .btn {
  width: 100%;
}

/* Latency Card (Matching 歪兔 YTOO right side card) */
.latency-panel {
  padding: 2.2rem 2rem;
  border-radius: 12px;
  background: rgba(10, 20, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.latency-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #38bdf8; /* sky blue light accent */
  margin-bottom: 1.8rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

.latency-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  margin-bottom: 2rem;
}

.latency-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  font-family: monospace;
}

.node-name {
  color: var(--text-main);
}

.node-ping {
  color: #10b981;
  font-weight: bold;
}

.bandwidth-container {
  margin-top: 1.5rem;
}

.progress-bar-bg {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 0.8rem;
}

.progress-bar-fill {
  width: 82%;
  height: 100%;
  background: var(--primary-light);
  border-radius: 10px;
  box-shadow: 0 0 8px var(--primary-light);
}

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

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  padding: 2.5rem 2rem;
  text-align: left;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
}

.feature-card:nth-child(2n) .feature-icon {
  background: rgba(203, 161, 53, 0.08);
  border-color: rgba(203, 161, 53, 0.15);
  color: var(--primary-light);
}

.feature-card h3 {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Interactive Pricing Section */
.price-toggle-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 3rem;
}

.toggle-label {
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.12);
  transition: .4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--primary);
}

input:checked + .slider:before {
  transform: translateX(24px);
}

.discount-badge {
  background: linear-gradient(135deg, #e11d48 0%, #be123c 100%);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 50px;
  margin-left: 4px;
}

/* Dynamic Price Cards */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  padding: 3rem 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: var(--glow-primary);
  transform: translateY(-8px);
}

.pricing-card.featured:hover {
  transform: translateY(-12px);
  border-color: var(--primary-light);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--text-inverse);
  padding: 3px 14px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 15px rgba(203, 161, 53, 0.3);
}

.plan-name {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.plan-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 2rem;
}

.plan-price {
  font-family: var(--font-title);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: baseline;
}

.plan-price span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 4px;
}

.plan-traffic {
  font-size: 0.9rem;
  color: var(--secondary);
  font-weight: 600;
  margin-bottom: 2rem;
}

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

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

.plan-features li::before {
  content: "✓";
  color: var(--secondary);
  font-weight: 800;
}

.pricing-card.featured .plan-features li::before {
  color: var(--primary-light);
}

.plan-btn {
  width: 100%;
}

/* Articles & Blog Cards */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.blog-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.blog-meta {
  padding: 1.5rem 1.5rem 0.5rem 1.5rem;
  display: flex;
  gap: 15px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.blog-card h3 {
  padding: 0 1.5rem;
  font-family: var(--font-title);
  font-size: 1.15rem;
  line-height: 1.4;
  margin-bottom: 1rem;
  font-weight: 600;
}

.blog-card h3 a {
  color: var(--text-main);
  text-decoration: none;
  transition: color 0.3s;
}

.blog-card h3 a:hover {
  color: var(--primary-light);
}

.blog-excerpt {
  padding: 0 1.5rem 1.5rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
  flex-grow: 1;
}

.blog-readmore {
  padding: 0 1.5rem 2rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--secondary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: gap 0.3s;
}

.blog-card:hover .blog-readmore {
  gap: 10px;
}

/* Testimonials / User Reviews */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.testimonial-card {
  padding: 2rem;
}

.stars {
  color: #ffb703;
  margin-bottom: 1rem;
  font-size: 1rem;
}

.testimonial-text {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  font-style: italic;
  margin-bottom: 1.5rem;
}

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

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-title);
  color: var(--text-inverse);
}

.user-name {
  font-weight: 600;
  font-size: 0.9rem;
}

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

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

.faq-item {
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background 0.3s;
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease;
  padding: 0 2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: var(--text-inverse);
}

.faq-item.active .faq-answer {
  padding-bottom: 1.5rem;
}

/* Footer */
.footer {
  background: #02050b;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding: 80px 0 40px 0;
  font-size: 0.85rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 4rem;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 1.5rem;
}

.footer-col p {
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

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

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

.footer-col ul li a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-col ul li a:hover {
  color: var(--primary-light);
}

.keyword-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.keyword-tag {
  font-size: 0.7rem;
  padding: 4px 8px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 4px;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.3s;
}

.keyword-tag:hover {
  border-color: var(--secondary);
  color: var(--secondary);
  background: rgba(56, 189, 248, 0.05);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 30px;
  text-align: center;
  color: var(--text-muted);
}

.footer-bottom p {
  margin-bottom: 10px;
}

/* Article Page Custom Styles */
.article-page {
  padding-top: 150px;
  padding-bottom: 80px;
}

.article-header {
  max-width: 800px;
  margin: 0 auto 3rem auto;
  text-align: center;
}

.article-title {
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff 30%, #e5ba73 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.article-meta-info {
  display: flex;
  justify-content: center;
  gap: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 2.5rem;
}

.article-content p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  text-align: justify;
}

.article-content h2 {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 2.5rem 0 1rem 0;
  border-left: 4px solid var(--primary);
  padding-left: 12px;
}

.article-content h3 {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-main);
  margin: 1.8rem 0 1rem 0;
}

.article-content ul, .article-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 8px;
  font-size: 1rem;
  color: var(--text-main);
}

.article-content a {
  color: var(--secondary);
  text-decoration: underline;
  transition: color 0.3s;
}

.article-content a:hover {
  color: var(--primary-light);
}

.article-content blockquote {
  background: rgba(203, 161, 53, 0.04);
  border-left: 4px solid var(--primary);
  padding: 1.5rem;
  border-radius: 0 8px 8px 0;
  margin-bottom: 1.5rem;
  font-style: italic;
  color: var(--text-muted);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
}

.article-content th, .article-content td {
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 10px;
  text-align: left;
  font-size: 0.9rem;
}

.article-content th {
  background: rgba(255, 255, 255, 0.02);
  font-weight: 600;
}

.article-cta-box {
  margin-top: 3rem;
  padding: 2.5rem;
  text-align: center;
  border-color: var(--primary-light);
}

.article-cta-box h3 {
  font-family: var(--font-title);
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.back-to-home {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  text-decoration: none;
  margin-bottom: 2rem;
  font-weight: 600;
  transition: color 0.3s;
}

.back-to-home:hover {
  color: var(--primary-light);
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-left {
    text-align: center;
  }
  .hero-buttons-container {
    margin: 0 auto;
  }
  .features-grid, .pricing-grid, .blog-grid, .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(3, 8, 20, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 3rem;
    align-items: flex-start;
    transition: 0.4s ease;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
  }
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -7px);
  }
  
  .features-grid, .pricing-grid, .blog-grid, .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-cta {
    flex-direction: column;
    padding: 0 2rem;
  }
  
  .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .article-content {
    padding: 1rem;
  }
  
  .hero-buttons-row-1 {
    flex-direction: column;
  }
}