/* Landing page styles */

.mesh-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(16, 185, 129, 0.18), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(6, 182, 212, 0.12), transparent),
    radial-gradient(ellipse 50% 40% at 0% 100%, rgba(139, 92, 246, 0.1), transparent),
    var(--bg-0);
}

.mesh-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  opacity: 0.4;
  pointer-events: none;
}

.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black, transparent);
}

/* Navigation */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
}

.site-nav.scrolled {
  background: rgba(5, 8, 15, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.nav-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--gradient-brand);
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  color: var(--text);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero {
  padding: calc(var(--nav-h) + 64px) 0 80px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.08;
  margin-bottom: 20px;
}

.hero-content p {
  color: var(--text-muted);
  font-size: 1.12rem;
  line-height: 1.75;
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
}

.hero-stat strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero-stat span {
  color: var(--text-dim);
  font-size: 0.82rem;
}

.hero-visual {
  position: relative;
}

.hero-card {
  padding: 24px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-strong);
  background: linear-gradient(145deg, rgba(24, 34, 48, 0.95), rgba(10, 16, 24, 0.98));
  box-shadow: var(--shadow-md), var(--shadow-glow);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.hero-card-dots {
  display: flex;
  gap: 6px;
}

.hero-card-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-strong);
}

.hero-card-dots span:first-child { background: #f87171; }
.hero-card-dots span:nth-child(2) { background: #fbbf24; }
.hero-card-dots span:nth-child(3) { background: #34d399; }

.hero-card-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--success);
  font-weight: 600;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 12px var(--success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.9); }
}

.chat-preview {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-bubble {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 0.88rem;
  line-height: 1.5;
  animation: slideIn 0.6s ease backwards;
}

.chat-bubble.in {
  align-self: flex-start;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
  animation-delay: 0.2s;
}

.chat-bubble.out {
  align-self: flex-end;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-bottom-right-radius: 4px;
  animation-delay: 0.5s;
}

.chat-bubble.cmd {
  align-self: flex-start;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.25);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  animation-delay: 0.8s;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.2), transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: -1;
  filter: blur(40px);
}

/* Trust strip */
.trust-strip {
  padding: 32px 0;
  border-block: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.trust-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-dim);
  font-size: 0.88rem;
  font-weight: 500;
}

.trust-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  display: grid;
  place-items: center;
  font-size: 1rem;
}

/* Sections */
.section {
  padding: 96px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .section-subtitle {
  margin-inline: auto;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 28px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(16, 185, 129, 0.35);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 1.4rem;
  margin-bottom: 18px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.feature-card:nth-child(3n+2) .feature-icon {
  background: rgba(6, 182, 212, 0.1);
  border-color: rgba(6, 182, 212, 0.2);
}

.feature-card:nth-child(3n) .feature-icon {
  background: rgba(139, 92, 246, 0.1);
  border-color: rgba(139, 92, 246, 0.2);
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

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

/* How it works */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  counter-reset: step;
}

.step-card {
  padding: 32px 28px;
  position: relative;
  counter-increment: step;
}

.step-card::before {
  content: counter(step, decimal-leading-zero);
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.5;
  display: block;
  margin-bottom: 16px;
  font-family: var(--font-mono);
}

.step-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* Commands showcase */
.commands-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.command-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.command-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  transition: var(--transition);
}

.command-item:hover,
.command-item.active {
  border-color: rgba(16, 185, 129, 0.4);
  background: rgba(16, 185, 129, 0.06);
}

.command-item code {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 80px;
}

.command-item span {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.command-detail {
  padding: 32px;
  min-height: 280px;
}

.command-detail h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.command-detail p {
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.command-detail .tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(139, 92, 246, 0.15);
  color: #c4b5fd;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.testimonial-card {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.testimonial-stars {
  color: #fbbf24;
  font-size: 0.9rem;
  letter-spacing: 2px;
}

.testimonial-card blockquote {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  flex: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-brand);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.author-info strong {
  display: block;
  font-size: 0.9rem;
}

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

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: stretch;
}

.pricing-card {
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card.featured {
  border-color: rgba(16, 185, 129, 0.45);
  box-shadow: var(--shadow-glow);
  transform: scale(1.02);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 14px;
  border-radius: 999px;
  background: var(--gradient-brand);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.pricing-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 16px 0 6px;
}

.pricing-price span {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dim);
}

.pricing-desc {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 24px;
  min-height: 44px;
}

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

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.pricing-features li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

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

/* FAQ */
.faq-list {
  max-width: 760px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.02);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition);
}

.faq-question:hover {
  background: rgba(255, 255, 255, 0.03);
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: 1.1rem;
  color: var(--accent);
  transition: transform var(--transition);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  max-height: 200px;
}

/* CTA */
.cta-section {
  padding: 80px 0 96px;
}

.cta-box {
  padding: 64px 48px;
  text-align: center;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(16, 185, 129, 0.25);
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(16, 185, 129, 0.12), transparent),
    linear-gradient(180deg, rgba(24, 34, 48, 0.95), rgba(10, 16, 24, 0.98));
  box-shadow: var(--shadow-glow);
}

.cta-box h2 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 14px;
}

.cta-box p {
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 28px;
  line-height: 1.7;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
  background: rgba(0, 0, 0, 0.2);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin-bottom: 16px;
}

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

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

.footer-col a:hover {
  color: var(--accent);
}

.social-links {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  color: var(--text-muted);
  transition: var(--transition);
}

.social-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(16, 185, 129, 0.08);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.82rem;
}

/* Mobile nav drawer */
@media (max-width: 960px) {
  .hero-grid,
  .commands-panel {
    grid-template-columns: 1fr;
  }

  .features-grid,
  .steps-grid,
  .testimonials-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card.featured {
    transform: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 20px;
    background: rgba(5, 8, 15, 0.98);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-actions .btn-ghost {
    display: none;
  }

  .hero-visual {
    order: -1;
  }

  .cta-box {
    padding: 40px 24px;
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .trust-grid {
    justify-content: center;
  }
}