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

:root {
  --bg-main: #0a0e17;
  --bg-card: rgba(18, 26, 43, 0.7);
  --bg-card-hover: rgba(28, 40, 65, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 210, 255, 0.3);
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --primary-cyan: #00f2fe;
  --primary-blue: #4facfe;
  --accent-purple: #7928ca;
  --accent-gradient: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
  --accent-gradient-purple: linear-gradient(135deg, #4facfe 0%, #00f2fe 50%, #7928ca 100%);
  --card-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.9);
  --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --max-w: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  position: relative;
  background: radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.15) 0%, transparent 60%),
              radial-gradient(circle at 100% 40%, rgba(121, 40, 202, 0.08) 0%, transparent 50%),
              var(--bg-main);
  min-height: 100vh;
}

/* Tech Flashing Particles */
body::before, body::after {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  z-index: 0;
}

body::before {
  background-image: 
    radial-gradient(circle, rgba(0, 242, 254, 0.8) 2px, transparent 2.5px),
    radial-gradient(circle, rgba(79, 172, 254, 0.6) 1.5px, transparent 2px);
  background-size: 110px 110px, 160px 160px;
  background-position: 20px 30px, 80px 90px;
  animation: tech-particles 4s infinite alternate ease-in-out;
}

body::after {
  background-image: 
    radial-gradient(circle, rgba(255, 255, 255, 0.6) 1.5px, transparent 2px),
    radial-gradient(circle, rgba(0, 242, 254, 0.4) 2.5px, transparent 3px);
  background-size: 200px 200px, 250px 250px;
  background-position: 50px 100px, 150px 50px;
  animation: tech-particles 6s infinite alternate ease-in-out 2s;
}

@keyframes tech-particles {
  0% { opacity: 0.1; transform: scale(1); }
  100% { opacity: 0.75; transform: scale(1.02); }
}

/* Background Ambient Glow */
.ambient-glow {
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(0, 242, 254, 0.18), transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(10, 14, 23, 0.8);
  border-bottom: 1px solid var(--border-color);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-size: 1.45rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

.brand-logo svg {
  width: 32px;
  height: 32px;
}

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

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

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 9999px;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  min-height: 44px;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #040914;
  box-shadow: 0 4px 20px rgba(0, 242, 254, 0.35);
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0; 
  left: -150%; 
  width: 50%; 
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
  transform: skewX(-25deg);
  transition: left 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 242, 254, 0.6);
}

.btn-primary:hover::after {
  left: 200%;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

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

/* Hero Section */
.hero {
  padding: 100px 0 80px;
  text-align: center;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 9999px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.25);
  color: var(--primary-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.badge-pulse {
  width: 8px;
  height: 8px;
  background-color: var(--primary-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--primary-cyan);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.8; }
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 36px;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  padding-top: 36px;
  border-top: 1px solid var(--border-color);
  max-width: 800px;
  margin: 0 auto;
}

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

.stat-val {
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
}

.stat-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-label {
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary-cyan);
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Advantages Grid (3 Cards) */
.advantages {
  padding: 80px 0;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.adv-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 36px 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

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

.adv-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(0, 242, 254, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--primary-cyan);
}

.adv-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.adv-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Streaming & AI Cards */
.media-ai {
  padding: 80px 0;
  background: rgba(255, 255, 255, 0.015);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.media-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}

.media-card:hover {
  border-color: rgba(79, 172, 254, 0.4);
  transform: translateY(-3px);
}

.media-header {
  margin-bottom: 24px;
}

.media-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.tag-stream {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.tag-ai {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.media-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.media-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.media-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.service-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.service-badge svg {
  width: 18px;
  height: 18px;
}

/* Pricing Section */
.pricing {
  padding: 90px 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 38px 28px;
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: var(--card-shadow);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease, border-color 0.4s ease;
  overflow: hidden;
}

.pricing-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: radial-gradient(800px circle at var(--mouse-x, 50%) var(--mouse-y, 0%), rgba(0, 242, 254, 0.08), transparent 40%);
  opacity: 0;
  transition: opacity 0.5s ease;
  z-index: 0;
  pointer-events: none;
}

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

.pricing-card > * {
  z-index: 1;
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: rgba(0, 242, 254, 0.4);
  box-shadow: 0 30px 60px -12px rgba(0, 242, 254, 0.15);
}

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(20, 32, 58, 0.95) 0%, rgba(13, 20, 37, 0.95) 100%);
  border: 2px solid var(--primary-cyan);
  box-shadow: 0 20px 40px -10px rgba(0, 242, 254, 0.25);
  transform: scale(1.04);
}

.pricing-card.featured:hover {
  transform: scale(1.06) translateY(-10px);
  box-shadow: 0 40px 80px -15px rgba(0, 242, 254, 0.4);
  border-color: var(--primary-cyan);
}

.popular-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-gradient);
  color: #000;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: 9999px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.plan-name {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.plan-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  min-height: 40px;
}

.plan-price {
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.currency {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary-cyan);
}

.amount {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1;
}

.period {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.plan-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: #cbd5e1;
  margin-bottom: 12px;
}

.plan-features li svg {
  width: 16px;
  height: 16px;
  color: var(--primary-cyan);
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), color 0.3s ease;
}

.pricing-card:hover .plan-features li svg {
  transform: scale(1.35) rotate(5deg);
  color: #fff;
}

/* Testimonials */
.testimonials {
  padding: 80px 0;
  background: rgba(255, 255, 255, 0.01);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-stars {
  color: #fbbf24;
  margin-bottom: 14px;
  display: flex;
  gap: 4px;
}

.testimonial-text {
  font-size: 0.92rem;
  color: #cbd5e1;
  line-height: 1.6;
  margin-bottom: 20px;
  font-style: italic;
}

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

.user-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #040914;
  font-weight: 700;
  font-size: 0.95rem;
}

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

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

/* FAQ Section */
.faq-section {
  padding: 80px 0 100px;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.16);
}

.faq-question {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  user-select: none;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-toggle-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.25s ease;
  color: var(--primary-cyan);
}

details[open] .faq-toggle-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px 22px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  margin-top: 4px;
  padding-top: 14px;
}

/* Bottom CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.25) 0%, rgba(0, 242, 254, 0.15) 100%);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: 24px;
  padding: 56px 32px;
  text-align: center;
  margin-bottom: 80px;
}

.cta-banner h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-banner p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 28px;
}

/* Footer (strictly 4 links only as required) */
.footer {
  border-top: 1px solid var(--border-color);
  background: rgba(6, 9, 15, 0.9);
  padding: 48px 0 36px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  list-style: none;
}

.footer-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}

.footer-nav a:hover {
  color: var(--primary-cyan);
}

.footer-copy {
  font-size: 0.85rem;
  color: #64748b;
}

/* Sub-page styles (About, Terms, Privacy, Sitemap) */
.legal-header {
  padding: 60px 0 30px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 40px;
}

.legal-title {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.legal-date {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.legal-content {
  max-width: 860px;
  margin: 0 auto 80px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 44px;
}

.legal-section {
  margin-bottom: 32px;
}

.legal-section:last-child {
  margin-bottom: 0;
}

.legal-section h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.legal-section h2::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 18px;
  background: var(--primary-cyan);
  border-radius: 2px;
}

.legal-section p, .legal-section li {
  color: #cbd5e1;
  font-size: 0.95rem;
  line-height: 1.7;
}

.legal-section ul {
  padding-left: 20px;
  margin-top: 10px;
}

.legal-section li {
  margin-bottom: 8px;
}

.highlight-box {
  background: rgba(0, 242, 254, 0.06);
  border-left: 3px solid var(--primary-cyan);
  padding: 16px 20px;
  border-radius: 0 10px 10px 0;
  margin: 16px 0;
}

.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 20px;
}

.sitemap-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 20px;
  border-radius: 12px;
  transition: var(--transition);
}

.sitemap-card:hover {
  border-color: var(--primary-cyan);
}

.sitemap-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.sitemap-card a {
  color: var(--primary-cyan);
  text-decoration: none;
  font-size: 0.9rem;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.8rem;
  }
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-6px);
  }
}

@media (max-width: 868px) {
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2.3rem;
  }
  .hero-subtitle {
    font-size: 1.1rem;
  }
  .advantage-grid {
    grid-template-columns: 1fr;
  }
  .media-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin: 0 auto;
  }
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }
  .sitemap-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 60px 0 50px;
  }
  .hero-title {
    font-size: 1.95rem;
  }
  .hero-subtitle {
    font-size: 0.98rem;
    margin-bottom: 28px;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .footer-nav {
    flex-direction: column;
    gap: 16px;
  }
  .legal-content {
    padding: 24px;
  }
  .cta-banner {
    padding: 40px 20px;
  }
  .cta-banner h2 {
    font-size: 1.65rem;
  }
}