/* ==========================================================================
   GLaDOS Network (gladojc.mom) - Native High-Performance Modern CSS
   Zero External Frameworks | Instant Loading | Dynamic Background Supported
   ========================================================================== */

:root {
  --bg-primary: #070b14;
  --bg-secondary: #0c1527;
  --bg-card: rgba(15, 25, 48, 0.75);
  --bg-card-hover: rgba(22, 38, 74, 0.85);
  --border-color: rgba(56, 189, 248, 0.15);
  --border-glow: rgba(0, 210, 255, 0.4);
  --primary: #1890ff;
  --primary-glow: #00d2ff;
  --primary-gradient: linear-gradient(135deg, #1890ff 0%, #00d2ff 100%);
  --ice-yellow: #fef08a;
  --ice-yellow-light: #fffde7;
  --ice-yellow-dark: #facc15;
  --ice-yellow-gradient: linear-gradient(135deg, #fffde7 0%, #fef08a 45%, #facc15 100%);
  --ice-yellow-glow: rgba(254, 240, 138, 0.45);
  --accent-purple: #7928ca;
  --accent-pink: #ff0080;
  --accent-gradient: linear-gradient(135deg, #7928ca 0%, #ff0080 100%);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --badge-bg: rgba(24, 144, 255, 0.12);
  --badge-border: rgba(56, 189, 248, 0.3);
  --success: #10b981;
  --warning: #f59e0b;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --container-width: 1240px;
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Dynamic Animated Background Canvas & Glow Orbs */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  pointer-events: none;
  opacity: 0.85;
}

.bg-glow-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -3;
  pointer-events: none;
  opacity: 0.35;
  animation: floatOrb 18s ease-in-out infinite alternate;
}

.orb-1 {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(254, 240, 138, 0.32) 0%, rgba(250, 204, 21, 0) 70%);
  top: -100px;
  left: 10%;
}

.orb-2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(250, 204, 21, 0.22) 0%, rgba(254, 240, 138, 0) 70%);
  top: 35%;
  right: -150px;
  animation-duration: 24s;
  animation-direction: alternate-reverse;
}

.orb-3 {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(254, 240, 138, 0.25) 0%, rgba(121, 40, 202, 0) 70%);
  bottom: 5%;
  left: 15%;
  animation-duration: 20s;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, 30px) scale(1.08); }
  100% { transform: translate(-30px, 50px) scale(0.95); }
}

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

/* Navigation Header */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 11, 20, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: 12px;
}

.brand-logo img {
  height: 40px;
  width: auto;
  max-width: none;
  display: block;
  filter: drop-shadow(0 0 10px rgba(0, 210, 255, 0.3));
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 28px;
}

.nav-menu a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  padding: 6px 0;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: #ffffff;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--primary-gradient);
  transition: width 0.25s ease;
  border-radius: 2px;
}

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

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

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

.btn-primary {
  background: var(--ice-yellow-gradient);
  color: #080d1a !important;
  font-weight: 700;
  border: 1px solid rgba(254, 240, 138, 0.6);
  box-shadow: 0 4px 18px var(--ice-yellow-glow), 0 0 20px rgba(250, 204, 21, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, #ffffff 0%, #fef08a 40%, #facc15 100%);
  box-shadow: 0 6px 26px rgba(254, 240, 138, 0.65), 0 0 30px rgba(250, 204, 21, 0.35);
  filter: brightness(1.06);
  color: #020617 !important;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(8px);
}

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

.btn-sm {
  padding: 7px 16px;
  font-size: 0.88rem;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-glow {
  position: relative;
  overflow: hidden;
}

.btn-glow::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    60deg,
    transparent,
    rgba(255, 255, 255, 0.25),
    transparent
  );
  transform: rotate(30deg);
  animation: btnShine 4.5s infinite;
}

@keyframes btnShine {
  0% { transform: translateX(-150%) rotate(30deg); }
  25%, 100% { transform: translateX(150%) rotate(30deg); }
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 4px;
}

/* Hero Section */
.hero-section {
  padding: 90px 0 70px;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  border-radius: var(--radius-full);
  color: #38bdf8;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: 0.3px;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: #00e5ff;
  border-radius: 50%;
  box-shadow: 0 0 10px #00e5ff;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}

.hero-title {
  font-size: clamp(2.3rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.18;
  margin-bottom: 22px;
  letter-spacing: -0.8px;
}

.text-gradient {
  background: var(--ice-yellow-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 20px rgba(254, 240, 138, 0.3));
}

.text-purple {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 840px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 52px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1020px;
  margin: 0 auto;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
}

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

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: #ffffff;
  display: block;
  margin-bottom: 4px;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

/* Section Shared */
.section-wrapper {
  padding: 85px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 1080px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ice-yellow);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.4rem, 2.3vw, 2.15rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.35;
  margin-bottom: 14px;
}

@media (min-width: 860px) {
  .section-title {
    white-space: nowrap;
  }
}

.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 780px;
  margin: 0 auto;
}

/* Feature Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.4), 0 0 25px rgba(0, 210, 255, 0.15);
}

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

.feature-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-sm);
  background: rgba(24, 144, 255, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  color: #38bdf8;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.65;
}

/* PRICING SECTION: STRICT REQUIREMENT: 所有价格同排 */
.pricing-section {
  background: linear-gradient(180deg, rgba(7, 11, 20, 0) 0%, rgba(12, 21, 39, 0.7) 50%, rgba(7, 11, 20, 0) 100%);
}

.pricing-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr); /* 4 Cards in ONE ROW on Desktop */
  gap: 20px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition);
  backdrop-filter: blur(12px);
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-glow);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 210, 255, 0.2);
}

.pricing-card.popular {
  border-color: #00d2ff;
  background: linear-gradient(180deg, rgba(16, 34, 68, 0.9) 0%, rgba(11, 22, 44, 0.85) 100%);
  box-shadow: 0 12px 35px rgba(0, 210, 255, 0.25);
  transform: scale(1.03);
  z-index: 2;
}

.pricing-card.popular:hover {
  transform: scale(1.03) translateY(-8px);
  box-shadow: 0 20px 48px rgba(0, 210, 255, 0.4);
}

.card-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ice-yellow-gradient);
  color: #080d1a;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  letter-spacing: 0.6px;
  box-shadow: 0 4px 14px rgba(254, 240, 138, 0.5);
  white-space: nowrap;
}

.pricing-header {
  text-align: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 22px;
}

.pricing-plan-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 6px;
}

.pricing-plan-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  min-height: 38px;
}

.pricing-cost {
  margin: 18px 0 10px;
}

.currency {
  font-size: 1.3rem;
  font-weight: 600;
  color: #38bdf8;
  vertical-align: top;
}

.amount {
  font-size: 2.8rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
}

.period {
  font-size: 0.88rem;
  color: var(--text-dim);
}

.sub-deal {
  display: inline-block;
  font-size: 0.82rem;
  color: #34d399;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  margin-top: 6px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.5;
}

.pricing-features li strong {
  color: var(--text-main);
}

.pricing-features li .check-icon {
  color: #00d2ff;
  font-size: 1rem;
  line-height: 1.4;
  flex-shrink: 0;
}

.pricing-card .btn {
  width: 100%;
}

/* Global Node Distribution Showcase */
.nodes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 36px;
}

.node-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

.node-box:hover {
  border-color: var(--primary-glow);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

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

.node-flag {
  font-size: 1.8rem;
  line-height: 1;
}

.node-name {
  font-weight: 700;
  color: #ffffff;
  font-size: 1rem;
}

.node-type {
  font-size: 0.8rem;
  color: var(--text-dim);
}

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

.node-ping {
  font-size: 0.88rem;
  font-weight: 700;
  color: #10b981;
}

.node-badge {
  font-size: 0.72rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
}

/* Articles / Blog Grid (5-8 articles showcase) */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: rgba(254, 240, 138, 0.4);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35), 0 0 20px rgba(254, 240, 138, 0.12);
}

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

.article-category {
  color: var(--ice-yellow);
  background: rgba(254, 240, 138, 0.12);
  border: 1px solid rgba(254, 240, 138, 0.28);
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 600;
}

.article-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.45;
  margin-bottom: 12px;
}

.article-title a {
  color: #ffffff;
  text-decoration: none;
  transition: color 0.2s;
}

.article-title a:hover {
  color: var(--ice-yellow);
}

.article-summary {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.article-link {
  color: var(--ice-yellow);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s, color 0.2s;
}

.article-link:hover {
  color: #ffffff;
  gap: 10px;
  text-shadow: 0 0 10px rgba(254, 240, 138, 0.5);
}

/* User Reviews / Testimonials (用户评价) */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}

.review-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
}

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

.user-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #ffffff;
  font-size: 1.1rem;
  flex-shrink: 0;
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.user-info h4 {
  font-size: 0.98rem;
  color: #ffffff;
  font-weight: 700;
}

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

.review-stars {
  color: #fbbf24;
  margin-bottom: 12px;
  font-size: 0.9rem;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* FAQ Section (常见问题) */
.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.faq-item:hover {
  border-color: rgba(254, 240, 138, 0.4);
}

.faq-item.active {
  border-color: rgba(254, 240, 138, 0.5);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35), 0 0 18px rgba(254, 240, 138, 0.12);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 700;
  text-align: left;
  transition: color 0.2s;
}

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

.faq-item.active .faq-question {
  color: var(--ice-yellow);
}

.faq-icon {
  font-size: 1.3rem;
  transition: transform 0.3s ease, color 0.2s;
  color: var(--ice-yellow);
}

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

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

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

/* Call to Action Banner */
.cta-banner {
  background: linear-gradient(135deg, rgba(24, 144, 255, 0.2) 0%, rgba(0, 210, 255, 0.08) 50%, rgba(121, 40, 202, 0.2) 100%);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  text-align: center;
  margin: 50px auto 0;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.cta-banner h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 16px;
}

.cta-banner p {
  font-size: 1.1rem;
  color: #cbd5e1;
  max-width: 680px;
  margin: 0 auto 32px;
}

/* Footer */
footer.site-footer {
  border-top: 1px solid var(--border-color);
  background: #04070e;
  padding: 60px 0 30px;
  color: var(--text-dim);
  font-size: 0.88rem;
  margin-top: 70px;
}

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

.footer-brand p {
  color: var(--text-muted);
  margin-top: 14px;
  font-size: 0.9rem;
  max-width: 320px;
  line-height: 1.6;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 0.98rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #38bdf8;
}

.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.footer-badges {
  display: flex;
  gap: 12px;
}

.footer-badge {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* Responsive Media Queries */
@media (max-width: 1100px) {
  .pricing-row {
    grid-template-columns: repeat(2, 1fr); /* 2x2 grid on medium screens */
  }
  .pricing-card.popular {
    transform: none;
  }
  .pricing-card.popular:hover {
    transform: translateY(-8px);
  }
}

@media (max-width: 992px) {
  .features-grid,
  .articles-grid,
  .reviews-grid,
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(7, 11, 20, 0.98);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--border-color);
  }
  .nav-menu.show {
    display: flex;
  }
  .mobile-toggle {
    display: block;
  }
  .pricing-row {
    grid-template-columns: 1fr; /* Single column on mobile */
  }
  .features-grid,
  .articles-grid,
  .reviews-grid,
  .nodes-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .cta-banner {
    padding: 40px 20px;
  }
}