@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 {
  --bg-primary: #080b11;
  --bg-secondary: #0f1420;
  --bg-tertiary: #161e30;
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent-cyan: #00f0ff;
  --accent-purple: #818cf8;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-yellow: #f59e0b;
  --border-color: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(0, 240, 255, 0.15);
  --glass-bg: rgba(15, 20, 32, 0.7);
  --glass-border: rgba(255, 255, 255, 0.05);
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.25;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

/* Base Layout Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  transition: var(--transition);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #ffffff;
}

.logo span {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: #080b11;
  font-size: 1.1rem;
}

nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

nav a {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

nav a:hover, nav a.active {
  color: var(--accent-cyan);
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.4);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 6rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(129, 140, 248, 0.08) 0%, rgba(0, 0, 0, 0) 70%);
  z-index: -1;
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  gap: 3.5rem;
}

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

.hero-tag {
  display: inline-block;
  padding: 0.35rem 1rem;
  border-radius: 100px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.2);
  color: var(--accent-cyan);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 3.5rem;
  letter-spacing: -1px;
  margin-bottom: 1.5rem;
  background: linear-gradient(180deg, #ffffff 50%, #9ca3af 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-text p {
  margin-left: 0;
  margin-right: 0;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-wrap {
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(0, 240, 255, 0.25);
  box-shadow: 0 12px 40px rgba(0, 240, 255, 0.15);
  position: relative;
}

.hero-image-wrap img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

.hero-image-wrap:hover img {
  transform: scale(1.03);
}

.hero-image-glow {
  position: absolute;
  top: -10%;
  left: -10%;
  right: -10%;
  bottom: -10%;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
  z-index: -1;
  pointer-events: none;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

@media (max-width: 992px) {
  .hero-buttons {
    justify-content: center;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #080b11;
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 240, 255, 0.4);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: #ffffff;
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

/* Glass Card Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--border-glow) 0%, rgba(0,0,0,0) 50%);
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 240, 255, 0.3);
  box-shadow: 0 8px 30px rgba(0, 240, 255, 0.05);
}

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

.card-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-size: 1.3rem;
  margin-bottom: 1.25rem;
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

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

/* Speed Test Simulator Section */
.speed-test-section {
  padding: 4rem 0;
}

.speed-test-card {
  max-width: 600px;
  margin: 0 auto;
  background: linear-gradient(185deg, var(--bg-secondary), var(--bg-primary));
  border: 1px solid rgba(0, 240, 255, 0.2);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  border-radius: 16px;
  padding: 2.5rem;
  text-align: center;
}

.speed-gauge-wrap {
  position: relative;
  width: 200px;
  height: 200px;
  margin: 1.5rem auto 2rem;
}

.gauge-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.gauge-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.04);
  stroke-width: 10;
}

.gauge-fill {
  fill: none;
  stroke: url(#cyan-purple-grad);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 565.48; /* 2 * PI * r (r=90) */
  stroke-dashoffset: 565.48; /* Empty initially */
  transition: stroke-dashoffset 0.1s linear;
}

.speed-display {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.speed-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
}

.speed-unit {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 0.25rem;
}

.metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.metric-box h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  margin-bottom: 0.25rem;
}

.metric-val {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  color: #ffffff;
}

/* Comparison Tables */
.table-section {
  padding: 4rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 2.25rem;
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

.table-responsive {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-secondary);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 800px;
}

th {
  background: rgba(255, 255, 255, 0.02);
  padding: 1.2rem 1.5rem;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
}

tr:last-child td {
  border-bottom: none;
}

.operator-cell {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  color: #ffffff;
}

.operator-badge {
  width: 8px;
  height: 24px;
  border-radius: 4px;
}

.op-celcomdigi { background-color: var(--accent-cyan); }
.op-maxis { background-color: var(--accent-green); }
.op-umobile { background-color: var(--accent-red); }
.op-yes { background-color: var(--accent-purple); }

.rating-pill {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
}

.rating-excellent { background: rgba(16, 185, 129, 0.1); color: var(--accent-green); border: 1px solid rgba(16, 185, 129, 0.2); }
.rating-good { background: rgba(245, 158, 11, 0.1); color: var(--accent-yellow); border: 1px solid rgba(245, 158, 11, 0.2); }
.rating-average { background: rgba(239, 68, 68, 0.1); color: var(--accent-red); border: 1px solid rgba(239, 68, 68, 0.2); }

/* Blog Elements */
.blog-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

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

.blog-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.blog-card h3 a:hover {
  color: var(--accent-cyan);
}

.blog-card p {
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

.read-more:hover {
  gap: 0.75rem;
}

/* Detailed Article View */
.article-header {
  padding: 6rem 0 3rem;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  border-bottom: 1px solid var(--border-color);
}

.article-header h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: 2rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.article-body {
  max-width: 780px;
  margin: 3rem auto;
  font-size: 1.1rem;
  color: var(--text-primary);
}

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

.article-body h2 {
  font-size: 1.8rem;
  margin: 2.5rem 0 1.25rem;
}

.article-body h3 {
  font-size: 1.4rem;
  margin: 2rem 0 1rem;
}

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

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

.article-body blockquote {
  border-left: 4px solid var(--accent-cyan);
  padding: 0.5rem 1.5rem;
  background: var(--bg-secondary);
  border-radius: 0 8px 8px 0;
  margin: 2rem 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* Contact Page Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  margin: 4rem 0;
}

.contact-info h2 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.info-item {
  display: flex;
  gap: 1rem;
}

.info-icon {
  width: 40px;
  height: 40px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.info-details h4 {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.info-details p {
  color: #ffffff;
}

.map-placeholder {
  width: 100%;
  height: 250px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
}

.map-placeholder::after {
  content: 'Interactive Map Placeholder - Protected in accordance with privacy compliance';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
  width: 80%;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.1);
}

.form-feedback {
  font-size: 0.8rem;
  margin-top: 0.25rem;
  display: none;
}

.form-feedback.success { color: var(--accent-green); }
.form-feedback.error { color: var(--accent-red); }

/* Cookie Consent Banner */
.cookie-banner {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  right: 2rem;
  max-width: 480px;
  background: rgba(15, 20, 32, 0.9);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  z-index: 1000;
  display: none;
  animation: slideUp 0.4s ease-out forwards;
}

@keyframes slideUp {
  from { transform: translateY(100px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.cookie-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.cookie-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.cookie-text a {
  color: var(--accent-cyan);
  text-decoration: underline;
}

.cookie-actions {
  display: flex;
  gap: 0.75rem;
}

.cookie-btn {
  flex: 1;
  padding: 0.6rem;
  border-radius: 6px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  border: none;
  text-align: center;
  transition: var(--transition);
}

.cookie-btn-accept {
  background: var(--accent-cyan);
  color: #080b11;
}

.cookie-btn-accept:hover {
  background: #00d2e0;
}

.cookie-btn-decline {
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  border: 1px solid var(--border-color);
}

.cookie-btn-decline:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Legal Page Layout */
.legal-content {
  padding: 6rem 0;
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h1 {
  font-size: 2.75rem;
  margin-bottom: 0.5rem;
}

.legal-date {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

.legal-text h2 {
  font-size: 1.6rem;
  margin: 2.5rem 0 1rem;
}

.legal-text p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.legal-text ul {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.legal-text li {
  margin-bottom: 0.5rem;
}

/* Footer styling */
footer {
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
  padding: 4rem 0 2rem;
  margin-top: 6rem;
}

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

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 1rem;
  max-width: 280px;
}

.footer-links-col h4 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1.25rem;
  color: #ffffff;
}

.footer-links-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links-col a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-links-col a:hover {
  color: var(--accent-cyan);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Mobile Responsiveness Rules */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; gap: 2.5rem; }
  .hero-text { text-align: center; }
  .hero h1 { font-size: 2.75rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .hero { padding: 4rem 0 3rem; }
  .hero h1 { font-size: 2.25rem; }
  nav { display: none; } /* Add responsive menu in JS if needed */
  .menu-toggle { display: block; }
  .metrics-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}

/* FAQ Accordion Styling */
.faq-section {
  padding: 5rem 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  position: relative;
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(0, 240, 255, 0.25);
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.03);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--accent-cyan);
  transition: transform 0.3s ease;
  font-family: var(--font-body);
}

.faq-item.active {
  border-color: var(--accent-cyan);
  box-shadow: 0 4px 30px rgba(0, 240, 255, 0.08);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.35s ease;
  padding: 0 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 1.5rem;
}

/* Enhanced Article Navigation */
.article-nav-section-title {
  margin: 5rem auto 2.5rem;
  text-align: center;
  position: relative;
  max-width: 780px;
}

.article-nav-section-title::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
  z-index: 1;
}

.article-nav-section-title span {
  position: relative;
  background: var(--bg-primary);
  padding: 0 1.5rem;
  color: var(--accent-cyan);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  z-index: 2;
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
}

.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 860px;
  margin: 0 auto 4rem;
}

.article-nav-card {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.75rem 2rem;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.article-nav-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(129, 140, 248, 0.04) 0%, transparent 70%);
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}

.article-nav-card:hover::before {
  opacity: 1;
}

.article-nav-card.prev {
  text-align: left;
}

.article-nav-card.next {
  text-align: right;
  justify-content: flex-end;
}

.article-nav-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 240, 255, 0.3);
  box-shadow: 0 12px 30px rgba(0, 240, 255, 0.1), inset 0 0 15px rgba(0, 240, 255, 0.05);
}

.article-nav-card.next:hover {
  border-color: rgba(129, 140, 248, 0.3);
  box-shadow: 0 12px 30px rgba(129, 140, 248, 0.1), inset 0 0 15px rgba(129, 140, 248, 0.05);
}

.card-arrow-wrap {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
  flex-shrink: 0;
}

.article-nav-card:hover .card-arrow-wrap {
  background: rgba(0, 240, 255, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.article-nav-card.next:hover .card-arrow-wrap {
  background: rgba(129, 140, 248, 0.1);
  border-color: var(--accent-purple);
  color: var(--accent-purple);
}

.nav-arrow {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  stroke: currentColor;
}

.article-nav-card.prev:hover .nav-arrow {
  transform: translateX(-4px);
}

.article-nav-card.next:hover .nav-arrow {
  transform: translateX(4px);
}

.card-content-wrap {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-nav-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.article-nav-card:hover .article-nav-label {
  color: var(--accent-cyan);
}

.article-nav-card.next:hover .article-nav-label {
  color: var(--accent-purple);
}

.article-nav-title {
  font-size: 1.05rem;
  font-family: var(--font-heading);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.4;
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

.article-nav-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.article-nav-card.next .article-nav-meta {
  justify-content: flex-end;
}

.meta-tag {
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  font-weight: 600;
}

@media (max-width: 768px) {
  .article-nav {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .article-nav-card.next {
    flex-direction: row;
    text-align: left;
    justify-content: flex-start;
  }
  .article-nav-card.next .article-nav-meta {
    justify-content: flex-start;
  }
}