/* ==========================================================================
   WindMillVPN (风车云马) - Pop-Art 1960s Design System
   Pure CSS - Zero JavaScript Dependency - Instant Loading Speed
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Archivo+Black&family=Space+Grotesk:wght@300;400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

:root {
  --bg-cream: #FFF8E7;
  --bg-soft: #FFEFB8;
  --bg-yellow: #FFE45E;
  
  --text-dark: #1A1A1A;
  --text-muted: #4A4030;
  --text-subtle: #8A7A55;
  --text-light: #FFFFFF;

  --accent-orange: #FF6B35;
  --accent-deep-orange: #E04E1A;

  --clash-blue: #4A90E2;
  --clash-green: #2ECC71;
  --clash-pink: #E91E63;

  --border-black: #1A1A1A;
  --border-thick: 3px solid #1A1A1A;
  --border-heavy: 4px solid #1A1A1A;

  --shadow-sm: 4px 4px 0 #1A1A1A;
  --shadow-md: 8px 8px 0 #1A1A1A;
  --shadow-lg: 12px 12px 0 #1A1A1A;

  --font-display: 'Archivo Black', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Space Mono', monospace;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important; /* Sharp pop-art corners */
}

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

body {
  font-family: var(--font-body);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.5;
  background-color: var(--bg-cream);
  color: var(--text-dark);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, .font-display {
  font-family: var(--font-display);
  font-weight: 900;
  color: var(--text-dark);
  line-height: 1.05;
}

h1 {
  font-size: clamp(40px, 6.5vw, 92px);
  letter-spacing: -0.04em;
  line-height: 0.98;
}

h2 {
  font-size: clamp(32px, 4.5vw, 58px);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
}

h3 {
  font-size: clamp(22px, 2.5vw, 30px);
  letter-spacing: -0.02em;
}

p {
  color: var(--text-dark);
  margin-bottom: 1rem;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Pop-Art Highlighter effect for Accent words */
.highlighter {
  position: relative;
  display: inline-block;
  color: var(--accent-orange);
  z-index: 1;
  padding: 0 4px;
}

.highlighter::after {
  content: '';
  position: absolute;
  left: -4px;
  right: -4px;
  bottom: 6px;
  height: 52%;
  background-color: var(--bg-yellow);
  border: 3px solid var(--border-black);
  transform: rotate(-1.5deg);
  z-index: -1;
}

/* Mono Labels */
.mono-label {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-block;
}

/* Stamps & Badges */
.stamp {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--bg-yellow);
  border: var(--border-thick);
  box-shadow: var(--shadow-sm);
  padding: 6px 14px;
  display: inline-block;
  white-space: nowrap;
}

.stamp.rot-neg-2 { transform: rotate(-2deg); }
.stamp.rot-pos-6 { transform: rotate(6deg); }
.stamp.rot-pos-8 { transform: rotate(8deg); }
.stamp.rot-neg-6 { transform: rotate(-6deg); }
.stamp.stamp-pink { background-color: var(--clash-pink); color: #fff; }
.stamp.stamp-green { background-color: var(--clash-green); color: #1a1a1a; }
.stamp.stamp-orange { background-color: var(--accent-orange); color: #fff; }
.stamp.stamp-blue { background-color: var(--clash-blue); color: #fff; }

/* Buttons & CTA */
.btn {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.02em;
  padding: 16px 32px;
  border: var(--border-thick);
  box-shadow: var(--shadow-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  text-align: center;
}

.btn:hover {
  transform: translate(4px, 4px);
  box-shadow: var(--shadow-sm);
}

.btn:active {
  transform: translate(8px, 8px);
  box-shadow: 0 0 0 transparent;
}

.btn-primary {
  background-color: var(--accent-orange);
  color: #fff;
}

.btn-secondary {
  background-color: var(--bg-yellow);
  color: var(--text-dark);
}

.btn-blog {
  background-color: var(--clash-blue);
  color: #fff;
}

.btn-green {
  background-color: var(--clash-green);
  color: var(--text-dark);
}

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

.section-padding {
  padding: 80px 0;
  border-bottom: var(--border-thick);
  position: relative;
}

/* Header & Navigation */
.header-nav {
  height: 76px;
  background-color: var(--bg-cream);
  border-bottom: var(--border-thick);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-badge {
  width: 42px;
  height: 42px;
  background-color: var(--accent-orange);
  border: var(--border-thick);
  box-shadow: var(--shadow-sm);
  transform: rotate(-3deg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.logo-badge svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: -0.02em;
  color: var(--text-dark);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dark);
  padding: 6px 12px;
  border: 2px solid transparent;
  transition: all 0.15s ease;
}

.nav-link:hover {
  background-color: var(--bg-yellow);
  border: 2px solid var(--border-black);
  box-shadow: 2px 2px 0 var(--border-black);
}

.nav-link.highlight-tab {
  background-color: var(--clash-pink);
  color: #fff;
  border: 2px solid var(--border-black);
  box-shadow: 3px 3px 0 var(--border-black);
}

.nav-link.highlight-tab:hover {
  background-color: #d81555;
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--border-black);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  overflow: hidden;
  background-color: var(--bg-cream);
  padding: 70px 0 90px;
}

/* Floating Shapes in Hero Background */
.shape-circle {
  position: absolute;
  width: 180px;
  height: 180px;
  background-color: var(--clash-blue);
  border: var(--border-heavy);
  top: 40px;
  right: 6%;
  z-index: 0;
  animation: floatBounce 4s ease-in-out infinite alternate;
}

.shape-triangle {
  position: absolute;
  width: 0;
  height: 0;
  border-left: 60px solid transparent;
  border-right: 60px solid transparent;
  border-bottom: 110px solid var(--clash-green);
  bottom: 40px;
  left: 3%;
  z-index: 0;
  animation: floatReverse 5s ease-in-out infinite alternate;
  filter: drop-shadow(4px 4px 0 #1A1A1A);
}

.shape-square {
  position: absolute;
  width: 64px;
  height: 64px;
  background-color: var(--clash-pink);
  border: var(--border-thick);
  top: 48%;
  left: 42%;
  z-index: 0;
  animation: floatRotate 3.5s ease-in-out infinite alternate;
}

@keyframes floatBounce {
  0% { transform: translateY(0) rotate(0deg); }
  100% { transform: translateY(-24px) rotate(12deg); }
}

@keyframes floatReverse {
  0% { transform: translateY(0) rotate(0deg); }
  100% { transform: translateY(20px) rotate(-8deg); }
}

@keyframes floatRotate {
  0% { transform: scale(1) rotate(0deg); }
  100% { transform: scale(1.08) rotate(15deg); }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero-lead {
  font-size: 20px;
  font-weight: 500;
  color: var(--text-dark);
  line-height: 1.6;
}

.hero-sub-en {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--bg-soft);
  padding: 8px 12px;
  border-left: 4px solid var(--accent-orange);
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 8px;
}

/* Hero Meta Box (4 cells) */
.hero-meta-box {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: var(--border-thick);
  box-shadow: var(--shadow-sm);
  background-color: var(--bg-yellow);
  margin-top: 14px;
}

.hero-meta-cell {
  padding: 12px 14px;
  border-right: var(--border-thick);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-dark);
}

.hero-meta-cell:last-child {
  border-right: none;
}

.hero-meta-cell span.check {
  color: var(--accent-orange);
  font-size: 18px;
  font-weight: 900;
}

/* Hero Visual Box with Pop-Art Geometric Windmill */
.hero-visual-wrapper {
  display: flex;
  justify-content: center;
  position: relative;
}

.windmill-canvas {
  width: 100%;
  max-width: 440px;
  aspect-ratio: 1 / 1;
  background-color: var(--accent-orange);
  border: var(--border-heavy);
  box-shadow: var(--shadow-lg);
  padding: 16px;
  position: relative;
}

.windmill-inner-frame {
  width: 100%;
  height: 100%;
  border: var(--border-thick);
  background-color: #FFEADB;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
}

/* Spinning blades parent */
.windmill-rotator {
  position: absolute;
  width: 200px;
  height: 200px;
  animation: spinWindmill 6s linear infinite;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
}

@keyframes spinWindmill {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* 4 Colored Blades */
.blade {
  position: absolute;
  width: 70px;
  height: 30px;
  border: var(--border-thick);
  box-shadow: var(--shadow-sm);
}

.blade-0 {
  background-color: var(--clash-blue);
  top: 15px;
  left: 65px;
  transform: rotate(0deg);
}

.blade-90 {
  background-color: var(--clash-green);
  top: 85px;
  right: 15px;
  transform: rotate(90deg);
}

.blade-180 {
  background-color: var(--clash-pink);
  bottom: 15px;
  left: 65px;
  transform: rotate(180deg);
}

.blade-270 {
  background-color: var(--accent-deep-orange);
  top: 85px;
  left: 15px;
  transform: rotate(270deg);
}

/* Hub */
.windmill-hub {
  position: absolute;
  width: 36px;
  height: 36px;
  background-color: #1A1A1A;
  border: 3px solid var(--accent-orange);
  z-index: 10;
}

/* Pole */
.windmill-pole {
  position: absolute;
  width: 16px;
  height: 52%;
  background-color: #1A1A1A;
  border: var(--border-thick);
  bottom: 0;
  left: calc(50% - 8px);
  z-index: 2;
}

/* Stamp Badges on Hero Frame */
.stamp-float-tr {
  position: absolute;
  top: -18px;
  right: -24px;
  z-index: 12;
}

.stamp-float-bl {
  position: absolute;
  bottom: -18px;
  left: -24px;
  z-index: 12;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-header {
  margin-bottom: 50px;
  text-align: left;
}

.section-header.text-center {
  text-align: center;
}

.section-subtitle {
  font-size: 19px;
  color: var(--text-muted);
  max-width: 680px;
  margin-top: 10px;
}

.section-header.text-center .section-subtitle {
  margin: 10px auto 0;
}

/* ==========================================================================
   Features 6-Card Grid
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  border: var(--border-thick);
  box-shadow: var(--shadow-md);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.feature-card:hover {
  transform: translate(4px, 4px);
  box-shadow: var(--shadow-sm);
}

/* Alternating card backgrounds: yellow, white, orange, white, blue, white */
.card-bg-yellow { background-color: var(--bg-yellow); color: var(--text-dark); }
.card-bg-white { background-color: #FFFFFF; color: var(--text-dark); }
.card-bg-orange { background-color: var(--accent-orange); color: #FFFFFF; }
.card-bg-blue { background-color: var(--clash-blue); color: #FFFFFF; }

.card-num {
  font-family: var(--font-display);
  font-size: 52px;
  line-height: 1;
  color: var(--accent-orange);
  margin-bottom: 16px;
}

.card-bg-orange .card-num {
  color: var(--bg-yellow);
}

.card-bg-blue .card-num {
  color: var(--bg-yellow);
}

.card-title {
  margin-bottom: 14px;
}

.card-desc {
  font-size: 16px;
  line-height: 1.6;
}

.card-bg-orange .card-desc,
.card-bg-orange .card-title,
.card-bg-blue .card-desc,
.card-bg-blue .card-title {
  color: #FFFFFF;
}

/* ==========================================================================
   Media & AI Grid Section
   ========================================================================== */
.media-ai-section {
  background-color: var(--bg-soft);
}

.media-ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.media-card {
  border: var(--border-heavy);
  box-shadow: var(--shadow-md);
  background-color: #FFFFFF;
  padding: 36px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.tag-item {
  padding: 8px 16px;
  border: var(--border-thick);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Nodes Statistics Band
   ========================================================================== */
.nodes-section {
  padding: 60px 0;
  background-color: #1A1A1A;
  border-bottom: var(--border-heavy);
}

.nodes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.node-stat-card {
  border: var(--border-thick);
  box-shadow: 6px 6px 0 #000;
  padding: 28px 20px;
  text-align: center;
}

.node-stat-card.bg-orange { background-color: var(--accent-orange); color: #fff; }
.node-stat-card.bg-blue { background-color: var(--clash-blue); color: #fff; }
.node-stat-card.bg-green { background-color: var(--clash-green); color: #1a1a1a; }
.node-stat-card.bg-yellow { background-color: var(--bg-yellow); color: #1a1a1a; }

.stat-number {
  font-family: var(--font-display);
  font-size: 52px;
  line-height: 1.1;
  margin-bottom: 8px;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

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

.pricing-card {
  border: var(--border-heavy);
  box-shadow: var(--shadow-md);
  background-color: #FFFFFF;
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.pricing-card.featured {
  background-color: var(--accent-orange);
  color: #FFFFFF;
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.featured h3,
.pricing-card.featured p,
.pricing-card.featured .pricing-price,
.pricing-card.featured .pricing-period {
  color: #FFFFFF;
}

.pricing-badge-hot {
  position: absolute;
  top: -16px;
  right: 18px;
  z-index: 10;
}

.pricing-price-wrap {
  margin: 24px 0;
  padding-bottom: 20px;
  border-bottom: 2px dashed #1A1A1A;
}

.pricing-card.featured .pricing-price-wrap {
  border-bottom-color: rgba(255, 255, 255, 0.4);
}

.pricing-price {
  font-family: var(--font-display);
  font-size: 54px;
  line-height: 1;
}

.pricing-period {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-muted);
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
}

.pricing-features li {
  font-size: 16px;
  padding: 10px 0;
  border-bottom: 2px dashed rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-card.featured .pricing-features li {
  border-bottom: 2px dashed rgba(255, 255, 255, 0.25);
}

.pricing-features li .check-icon {
  color: var(--accent-orange);
  font-weight: 900;
  font-size: 18px;
}

.pricing-card.featured .pricing-features li .check-icon {
  color: var(--bg-yellow);
}

/* ==========================================================================
   Testimonials
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.testimonial-card {
  border: var(--border-heavy);
  box-shadow: var(--shadow-md);
  background-color: #FFFFFF;
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-card.card-green {
  background-color: var(--clash-green);
  color: #1A1A1A;
}

.testimonial-quote {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.6;
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: var(--border-thick);
  padding-top: 18px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  background-color: var(--accent-orange);
  border: var(--border-thick);
  box-shadow: 3px 3px 0 #000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  color: #fff;
}

.testimonial-card.card-green .author-avatar {
  background-color: #1A1A1A;
  color: var(--clash-green);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-width: 960px;
  margin: 0 auto;
}

.faq-item {
  border: var(--border-thick);
  box-shadow: 6px 6px 0 #1A1A1A;
  background-color: #FFFFFF;
  overflow: hidden;
  transition: all 0.2s ease;
}

.faq-summary {
  padding: 22px 28px;
  font-family: var(--font-display);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  background-color: #FFFFFF;
  transition: background-color 0.15s ease;
}

.faq-summary:hover {
  background-color: var(--bg-yellow);
}

.faq-item[open] .faq-summary {
  background-color: var(--bg-yellow);
  border-bottom: var(--border-thick);
}

.faq-toggle-icon {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--accent-orange);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-toggle-icon {
  transform: rotate(45deg);
}

.faq-body {
  padding: 24px 28px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-dark);
  background-color: #FFFFFF;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: #1A1A1A;
  color: #FFFFFF;
  border-top: 6px solid var(--accent-orange);
  padding: 70px 0 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  padding-bottom: 50px;
  border-bottom: 2px dashed rgba(255, 255, 255, 0.2);
}

.footer-brand h3 {
  color: #FFFFFF;
  font-size: 28px;
  margin-bottom: 14px;
}

.footer-brand p {
  color: #CCCCCC;
  font-size: 16px;
  max-width: 480px;
}

.footer-nav-col h4 {
  font-family: var(--font-mono);
  color: var(--clash-green);
  text-transform: uppercase;
  font-size: 14px;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.footer-links-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.footer-links-list a {
  font-size: 17px;
  font-weight: 600;
  color: #FFFFFF;
  padding: 8px 14px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  display: inline-block;
  transition: all 0.15s ease;
}

.footer-links-list a:hover {
  background-color: var(--bg-yellow);
  color: #1A1A1A;
  border-color: var(--bg-yellow);
  transform: translate(3px, 3px);
  box-shadow: 3px 3px 0 var(--clash-pink);
}

.footer-bottom {
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: #888888;
}

/* ==========================================================================
   Article & Content Pages Shared Styles (Pop-Art Format)
   ========================================================================== */
.article-header {
  padding: 60px 0 40px;
  border-bottom: var(--border-heavy);
  background-color: var(--bg-soft);
}

.article-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 50px 24px;
}

.article-body {
  font-size: 19px;
  line-height: 1.85;
}

.article-body h2 {
  margin-top: 48px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: var(--border-thick);
}

.article-body h3 {
  margin-top: 32px;
  margin-bottom: 16px;
  color: var(--accent-orange);
}

.article-body p {
  margin-bottom: 22px;
}

.article-body ul, .article-body ol {
  margin: 0 0 24px 28px;
}

.article-body li {
  margin-bottom: 10px;
}

.article-callout {
  border: var(--border-heavy);
  box-shadow: var(--shadow-sm);
  padding: 24px 28px;
  background-color: var(--bg-yellow);
  margin: 32px 0;
}

.article-callout.callout-blue {
  background-color: #EBF3FF;
  border-color: var(--clash-blue);
}

.article-callout p:last-child {
  margin-bottom: 0;
}

.inline-dofollow-link {
  color: #0b61d3;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
  padding: 2px 4px;
  background-color: #FFF2A8;
  border: 1px solid #1A1A1A;
  box-shadow: 2px 2px 0 #1A1A1A;
  transition: all 0.15s ease;
}

.inline-dofollow-link:hover {
  background-color: var(--accent-orange);
  color: #FFFFFF;
  transform: translate(2px, 2px);
  box-shadow: 0 0 0 transparent;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual-wrapper {
    order: -1;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
  .pricing-card.featured {
    transform: none;
  }
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .media-ai-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 38px;
    line-height: 1.1;
  }
  h2 {
    font-size: 30px;
  }
  .header-nav {
    height: auto;
    padding: 14px 0;
  }
  .nav-inner {
    flex-direction: column;
    gap: 14px;
    align-items: stretch;
  }
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .hero-meta-box {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-meta-cell {
    border-bottom: var(--border-thick);
  }
  .hero-meta-cell:nth-child(2) {
    border-right: none;
  }
  .hero-meta-cell:nth-child(3),
  .hero-meta-cell:nth-child(4) {
    border-bottom: none;
  }
  .nodes-grid {
    grid-template-columns: 1fr;
  }
  .btn {
    width: 100%;
    padding: 16px 20px;
  }
  .hero-cta-group {
    flex-direction: column;
  }
  .shape-circle, .shape-triangle, .shape-square {
    display: none; /* Hide background clutter on mobile */
  }
}