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

:root {
  /* Color system */
  --bg-darker: hsl(240, 20%, 6%);
  --bg-dark: hsl(240, 18%, 10%);
  --bg-card: hsla(240, 16%, 13%, 0.6);
  --border-light: hsla(255, 100%, 100%, 0.08);
  --border-focus: hsla(260, 85%, 65%, 0.4);
  
  --primary: hsl(260, 85%, 65%);
  --primary-glow: hsla(260, 85%, 65%, 0.45);
  --secondary: hsl(190, 90%, 50%);
  --secondary-glow: hsla(190, 90%, 50%, 0.4);
  --accent-gold: hsl(43, 100%, 60%);
  --accent-gold-glow: hsla(43, 100%, 60%, 0.35);

  --text-primary: hsl(0, 0%, 96%);
  --text-secondary: hsl(220, 12%, 75%);
  --text-muted: hsl(220, 10%, 50%);
  
  --font-title: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --transition-smooth: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
  --max-width: 1200px;
}

/* Reset & Basic Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-darker);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-darker);
}
::-webkit-scrollbar-thumb {
  background: hsl(240, 15%, 20%);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* Canvas Background */
#starfield {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* Background Gradients */
.bg-gradient-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background: 
    radial-gradient(circle at 10% 20%, hsla(260, 70%, 15%, 0.4) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, hsla(190, 70%, 12%, 0.35) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, hsla(280, 50%, 8%, 0.5) 0%, transparent 60%);
  background-attachment: fixed;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: hsla(240, 20%, 6%, 0.6);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition-smooth);
}

header.scrolled {
  background: hsla(240, 20%, 6%, 0.85);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--accent-gold), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 1px;
}

.logo span {
  font-size: 1.8rem;
  display: inline-block;
  transform: rotate(-10deg);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  position: relative;
  padding: 0.25rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-gold), var(--primary));
  transition: var(--transition-smooth);
}

.nav-links a:hover {
  color: var(--text-primary);
}

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

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), hsl(280, 85%, 60%));
  color: var(--text-primary);
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 15px var(--primary-glow);
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.95rem;
  cursor: pointer;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--primary-glow), 0 0 12px rgba(255, 255, 255, 0.2);
  filter: brightness(1.1);
}

.cta-btn.secondary {
  background: transparent;
  border: 1px solid var(--border-light);
  box-shadow: none;
}

.cta-btn.secondary:hover {
  background: hsla(255, 100%, 100%, 0.05);
  border-color: var(--primary);
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.05);
}

.cta-btn.gold {
  background: linear-gradient(135deg, var(--accent-gold), hsl(30, 95%, 50%));
  box-shadow: 0 4px 15px var(--accent-gold-glow);
  color: hsl(240, 20%, 6%);
  font-weight: 700;
}

.cta-btn.gold:hover {
  box-shadow: 0 6px 20px var(--accent-gold-glow), 0 0 12px rgba(255, 255, 255, 0.3);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 101;
}

.menu-toggle span {
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition-smooth);
}

/* Hero Section */
.hero {
  padding: 10rem 2rem 6rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: hsla(43, 100%, 60%, 0.1);
  border: 1px solid rgba(255, 180, 0, 0.25);
  color: var(--accent-gold);
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 2rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  animation: float 3s ease-in-out infinite;
}

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

.hero h1 {
  font-family: var(--font-title);
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
}

.hero h1 span.gradient-text-1 {
  background: linear-gradient(135deg, #fff, hsl(220, 10%, 75%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero h1 span.gradient-text-2 {
  background: linear-gradient(135deg, var(--accent-gold), var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 750px;
  margin-bottom: 3rem;
  font-weight: 300;
}

.hero-ctas {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 4rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  width: 100%;
  max-width: 800px;
  margin-top: 2rem;
}

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

.stat-value {
  font-family: var(--font-title);
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #fff, var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Glassmorphism Card Style */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 2.5rem;
  transition: var(--transition-smooth);
}

.glass-card:hover {
  border-color: var(--border-focus);
  box-shadow: 0 10px 40px rgba(115, 60, 255, 0.15);
  transform: translateY(-5px);
}

/* Section Common Styles */
section {
  padding: 8rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 5rem auto;
}

.section-header h2 {
  font-family: var(--font-title);
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-header h2 span {
  background: linear-gradient(135deg, var(--accent-gold), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* Features Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.feature-card {
  position: relative;
  overflow: hidden;
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: hsla(260, 85%, 65%, 0.1);
  border: 1px solid rgba(115, 60, 255, 0.2);
  color: var(--primary);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  transition: var(--transition-smooth);
}

.feature-card:hover .feature-icon {
  background: var(--primary);
  color: var(--text-primary);
  box-shadow: 0 0 20px var(--primary-glow);
  transform: scale(1.05) rotate(5deg);
}

.feature-card h3 {
  font-family: var(--font-title);
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

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

/* Pricing Section */
.pricing-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.pricing-controls span {
  font-weight: 600;
  font-size: 1rem;
}

.pricing-switch {
  width: 60px;
  height: 32px;
  background: hsl(240, 15%, 18%);
  border: 1px solid var(--border-light);
  border-radius: 30px;
  position: relative;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.pricing-switch::after {
  content: '';
  width: 24px;
  height: 24px;
  background: var(--primary);
  border-radius: 50%;
  position: absolute;
  top: 3px;
  left: 3px;
  transition: var(--transition-smooth);
  box-shadow: 0 2px 5px rgba(0,0,0,0.5);
}

.pricing-switch.yearly::after {
  left: 31px;
  background: var(--accent-gold);
}

.discount-badge {
  background: var(--accent-gold);
  color: hsl(240, 20%, 6%);
  font-weight: 800;
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 50px;
  text-transform: uppercase;
}

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

.pricing-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: 0 8px 30px rgba(115, 60, 255, 0.15);
  transform: translateY(-8px);
}

.pricing-card.popular::before {
  content: '最受欢迎 / 推荐';
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent-gold), var(--primary));
  color: var(--text-primary);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.4rem 1.25rem;
  border-radius: 50px;
  white-space: nowrap;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.pricing-card h3 {
  font-family: var(--font-title);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.plan-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.plan-price {
  margin-bottom: 2rem;
}

.plan-price .currency {
  font-size: 1.5rem;
  font-weight: 700;
  vertical-align: top;
  color: var(--accent-gold);
}

.plan-price .amount {
  font-family: var(--font-title);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
}

.plan-price .period {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.plan-features {
  list-style: none;
  margin-bottom: 2.5rem;
  border-top: 1px solid var(--border-light);
  padding-top: 1.5rem;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
  color: var(--text-secondary);
}

.plan-features li span.check {
  color: var(--secondary);
  font-weight: bold;
}

.plan-features li.disabled {
  color: var(--text-muted);
  text-decoration: line-through;
}

.plan-features li.disabled span.check {
  color: var(--text-muted);
}

/* Articles Section */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.article-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 0;
  overflow: hidden;
}

.article-image {
  height: 180px;
  background: linear-gradient(135deg, hsl(240, 16%, 15%), hsl(260, 40%, 15%));
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border-light);
}

.article-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, transparent 20%, rgba(20, 16, 35, 0.4) 100%);
}

.article-symbol {
  font-size: 3rem;
  opacity: 0.35;
  transition: var(--transition-smooth);
}

.article-card:hover .article-symbol {
  transform: scale(1.15) rotate(-5deg);
  opacity: 0.6;
}

.article-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.article-card h3 {
  font-family: var(--font-title);
  font-size: 1.25rem;
  margin-bottom: 1rem;
  line-height: 1.4;
  height: 3.4rem;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  color: var(--text-primary);
  transition: var(--transition-smooth);
}

.article-card:hover h3 {
  color: var(--primary);
}

.article-excerpt {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
  height: 4.8rem;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent-gold);
  text-decoration: none;
  margin-top: auto;
  transition: var(--transition-smooth);
}

.read-more::after {
  content: '→';
  transition: var(--transition-smooth);
}

.read-more:hover {
  color: var(--text-primary);
}

.read-more:hover::after {
  transform: translateX(5px);
}

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

.review-card {
  display: flex;
  flex-direction: column;
}

.review-stars {
  color: var(--accent-gold);
  margin-bottom: 1rem;
}

.review-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-style: italic;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 1rem;
  border-top: 1px solid var(--border-light);
  padding-top: 1rem;
}

.user-avatar {
  width: 48px;
  height: 48px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.1rem;
  color: var(--text-primary);
  box-shadow: 0 0 10px rgba(115, 60, 255, 0.3);
}

.user-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
}

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

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

.faq-item {
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 0.5rem;
}

.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text-primary);
  text-align: left;
  padding: 1.5rem 1rem;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-smooth);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  font-size: 1.5rem;
  font-weight: 300;
  transition: var(--transition-smooth);
  color: var(--accent-gold);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease;
  padding: 0 1rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding-bottom: 1.5rem;
}

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

/* Footer Section */
footer {
  background: hsla(240, 20%, 4%, 0.9);
  border-top: 1px solid var(--border-light);
  padding: 5rem 2rem 2rem 2rem;
  color: var(--text-secondary);
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-about p {
  font-size: 0.95rem;
  margin-top: 1.5rem;
  line-height: 1.6;
}

.footer-links h4, .footer-geo h4 {
  font-family: var(--font-title);
  color: var(--text-primary);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.footer-links ul li {
  margin-bottom: 0.75rem;
}

.footer-links ul li a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition-smooth);
}

.footer-links ul li a:hover {
  color: var(--accent-gold);
  padding-left: 5px;
}

.footer-geo address {
  font-style: normal;
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-geo .geo-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  background: hsla(190, 90%, 50%, 0.08);
  border: 1px solid rgba(0, 220, 255, 0.15);
  color: var(--secondary);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.8rem;
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  border-top: 1px solid var(--border-light);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 2rem;
}

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

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

/* Article Template Specific Layout */
.article-page {
  padding: 9rem 2rem 6rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.article-header {
  margin-bottom: 3rem;
  text-align: left;
}

.article-header .back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  margin-bottom: 1.5rem;
  transition: var(--transition-smooth);
}

.article-header .back-link:hover {
  color: var(--accent-gold);
  transform: translateX(-5px);
}

.article-header h1 {
  font-family: var(--font-title);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff, var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

.article-body p {
  margin-bottom: 1.75rem;
}

.article-body h2 {
  font-family: var(--font-title);
  font-size: 1.8rem;
  color: var(--text-primary);
  margin: 3rem 0 1.25rem 0;
  position: relative;
  padding-left: 1rem;
}

.article-body h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.35rem;
  bottom: 0.35rem;
  width: 4px;
  background: linear-gradient(to bottom, var(--accent-gold), var(--primary));
  border-radius: 2px;
}

.article-body h3 {
  font-family: var(--font-title);
  font-size: 1.35rem;
  color: var(--text-primary);
  margin: 2rem 0 1rem 0;
}

.article-body ul, .article-body ol {
  margin-bottom: 1.75rem;
  padding-left: 1.5rem;
}

.article-body li {
  margin-bottom: 0.5rem;
}

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

.article-body a:hover {
  color: var(--text-primary);
  text-shadow: 0 0 8px var(--accent-gold-glow);
}

.article-body strong {
  color: var(--text-primary);
  font-weight: 600;
}

.article-body blockquote {
  background: hsla(260, 85%, 65%, 0.05);
  border-left: 4px solid var(--primary);
  padding: 1.5rem 2rem;
  border-radius: 0 12px 12px 0;
  margin: 2.5rem 0;
  font-style: italic;
  color: var(--text-primary);
}

.article-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--border-light);
  padding-top: 3rem;
}

.article-footer-title {
  font-family: var(--font-title);
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: 2rem;
  text-align: center;
}

/* Animations */
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
  100% { transform: translateY(0px); }
}

/* Media Queries (Responsive) */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 3rem;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
  .footer-about {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: hsla(240, 20%, 6%, 0.95);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    flex-direction: column;
    padding: 6rem 2rem 2rem 2rem;
    gap: 2rem;
    transition: var(--transition-smooth);
    border-left: 1px solid var(--border-light);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .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(5px, -6px);
  }
  
  .hero {
    padding-top: 8rem;
  }
  
  .hero h1 {
    font-size: 2.3rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .hero-ctas {
    flex-direction: column;
    width: 100%;
    max-width: 320px;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .section-header {
    margin-bottom: 3.5rem;
  }
  
  .section-header h2 {
    font-size: 2rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-card.popular {
    transform: none;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }
  
  .article-header h1 {
    font-size: 2rem;
  }
  
  .article-body {
    font-size: 1rem;
  }
}