/* ============================================
   NemoClaw Website — Design System & Styles
   NVIDIA-inspired dark theme
   ============================================ */

:root {
  --green: #76b900;
  --green-light: #8fd400;
  --green-dark: #5a8f00;
  --green-glow: rgba(118, 185, 0, 0.15);
  --green-glow-strong: rgba(118, 185, 0, 0.3);

  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --bg-card: #141414;
  --bg-card-hover: #1c1c1c;

  --text-primary: #f0f0f0;
  --text-secondary: #a0a0a0;
  --text-tertiary: #666666;

  --border: #222222;
  --border-light: #2a2a2a;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px var(--green-glow);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --transition: 0.2s ease;
  --transition-slow: 0.4s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

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

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

img {
  max-width: 100%;
  display: block;
}

/* ---- Container ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--green);
  color: #000;
  border-color: var(--green);
}

.btn-primary:hover {
  background: var(--green-light);
  border-color: var(--green-light);
  box-shadow: 0 0 20px var(--green-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-light);
}

.btn-outline:hover {
  border-color: var(--green);
  color: var(--green);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 8px 14px;
  font-size: 13px;
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--text-tertiary);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
  border-radius: var(--radius-md);
}

.btn-block {
  display: flex;
  justify-content: center;
  width: 100%;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.navbar.scrolled {
  border-bottom-color: var(--border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
}

.logo-icon {
  color: var(--green);
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--transition);
  font-weight: 500;
}

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition);
  border-radius: 1px;
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  padding: 160px 0 100px;
  text-align: center;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(118, 185, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(118, 185, 0, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}

.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(118, 185, 0, 0.08) 0%, transparent 60%);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  border-radius: 100px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--green) 0%, var(--green-light) 50%, #a0e040 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

/* Terminal in Hero */
.hero-terminal {
  max-width: 600px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  text-align: left;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
}

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

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.terminal-title {
  font-size: 12px;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 15px;
  min-height: 60px;
}

.terminal-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.terminal-prompt {
  color: var(--green);
  font-weight: 600;
}

.terminal-cmd {
  color: var(--text-primary);
}

.terminal-cursor {
  color: var(--green);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ============================================
   Stats Bar
   ============================================ */
.stats {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.stats-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

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

.stat-number {
  font-size: 36px;
  font-weight: 800;
  color: var(--green);
  letter-spacing: -0.02em;
}

.stat-suffix {
  font-size: 24px;
  font-weight: 700;
  color: var(--green);
}

.stat-label {
  display: block;
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-light);
}

/* ============================================
   Sections
   ============================================ */
.section {
  padding: 100px 0;
}

.section-dark {
  background: var(--bg-secondary);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--green-glow);
  color: var(--green);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-header p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

/* ============================================
   Overview Grid
   ============================================ */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.overview-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.overview-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.overview-main {
  grid-column: span 2;
}

.overview-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-glow);
  border-radius: var(--radius-md);
  color: var(--green);
  margin-bottom: 20px;
}

.overview-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.overview-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   Features Grid
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.feature-card {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--green);
  box-shadow: 0 0 30px var(--green-glow);
  transform: translateY(-3px);
}

.feature-icon-wrap {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-glow);
  border-radius: var(--radius-sm);
  color: var(--green);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   Steps / How It Works
   ============================================ */
.steps-grid {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  justify-content: center;
}

.step-card {
  flex: 1;
  max-width: 340px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.step-card:hover {
  border-color: var(--green);
  box-shadow: var(--shadow-glow);
}

.step-number {
  font-size: 48px;
  font-weight: 900;
  color: var(--green);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.step-code {
  background: var(--bg-primary);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--green);
  overflow-x: auto;
}

.step-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  padding-top: 60px;
  flex-shrink: 0;
}

/* ============================================
   Install Section
   ============================================ */
.install-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  align-items: start;
}

.install-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.install-tab-header {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.install-tab {
  flex: 1;
  padding: 14px;
  background: none;
  border: none;
  color: var(--text-tertiary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border-bottom: 2px solid transparent;
  font-family: var(--font-sans);
}

.install-tab:hover {
  color: var(--text-secondary);
}

.install-tab.active {
  color: var(--green);
  border-bottom-color: var(--green);
  background: rgba(118, 185, 0, 0.05);
}

.install-content {
  display: none;
  padding: 0;
}

.install-content.active {
  display: block;
}

.code-block {
  font-family: var(--font-mono);
  font-size: 14px;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-tertiary);
}

.copy-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-tertiary);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-sans);
}

.copy-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-tertiary);
}

.code-block pre {
  padding: 20px;
  overflow-x: auto;
  line-height: 2;
}

.code-block code {
  color: var(--text-primary);
}

.code-comment {
  color: var(--text-tertiary);
}

.code-prompt {
  color: var(--green);
  font-weight: 600;
}

.install-info {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.install-info h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.install-info h3:not(:first-child) {
  margin-top: 24px;
}

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

.requirements-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.hardware-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.hw-badge {
  padding: 4px 12px;
  background: var(--green-glow);
  color: var(--green);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
}

/* ============================================
   Use Cases
   ============================================ */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.usecase-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.usecase-card:hover {
  border-color: var(--green);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.usecase-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-glow);
  border-radius: var(--radius-md);
  color: var(--green);
  margin-bottom: 20px;
}

.usecase-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.usecase-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   Ecosystem
   ============================================ */
.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.eco-card {
  padding: 24px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--transition);
}

.eco-card:hover {
  border-color: var(--green);
  background: var(--bg-card-hover);
}

.eco-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.eco-desc {
  font-size: 12px;
  color: var(--text-tertiary);
}

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

.partners-section h3 {
  font-size: 14px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}

.partners-grid {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.partner-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-tertiary);
  transition: color var(--transition);
}

.partner-name:hover {
  color: var(--text-secondary);
}

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

.pricing-card {
  padding: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  position: relative;
}

.pricing-card.featured {
  border-color: var(--green);
  box-shadow: 0 0 40px var(--green-glow);
  transform: scale(1.03);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  background: var(--green);
  color: #000;
  font-size: 12px;
  font-weight: 700;
  border-radius: 100px;
  white-space: nowrap;
}

.pricing-tier {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.pricing-price {
  margin-bottom: 12px;
}

.price-amount {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.price-period {
  font-size: 15px;
  color: var(--text-tertiary);
}

.pricing-desc {
  font-size: 14px;
  color: var(--text-tertiary);
  margin-bottom: 24px;
  line-height: 1.5;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

/* ============================================
   FAQ
   ============================================ */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.faq-item.active {
  border-color: var(--border-light);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-sans);
  transition: color var(--transition);
}

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

.faq-chevron {
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--text-tertiary);
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
  color: var(--green);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-answer p {
  padding: 0 24px 18px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
  text-align: center;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(118, 185, 0, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.cta-content {
  position: relative;
}

.cta-content h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

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

.cta-links a {
  color: var(--text-tertiary);
  font-size: 14px;
  transition: color var(--transition);
}

.cta-links a:hover {
  color: var(--green);
}

.cta-divider {
  color: var(--border-light);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
  background: var(--bg-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer-brand p {
  margin-top: 12px;
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.6;
  max-width: 280px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links h4 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-tertiary);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--green);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-tertiary);
}

.footer-legal {
  display: flex;
  gap: 20px;
}

.footer-legal a {
  font-size: 13px;
  color: var(--text-tertiary);
  transition: color var(--transition);
}

.footer-legal a:hover {
  color: var(--text-secondary);
}

/* ============================================
   Comparison Table
   ============================================ */
.comparison-table-wrap {
  overflow-x: auto;
  margin-bottom: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--bg-card);
}

.comparison-table th,
.comparison-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.comparison-table thead th {
  background: var(--bg-tertiary);
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.comparison-table thead th.highlight {
  color: var(--green);
  background: rgba(118, 185, 0, 0.08);
}

.comparison-table td.highlight {
  color: var(--green);
  font-weight: 600;
  background: rgba(118, 185, 0, 0.04);
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

.comparison-table tbody tr:hover {
  background: var(--bg-card-hover);
}

.comparison-note {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.7;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

/* ============================================
   Video Carousel
   ============================================ */
.video-carousel-wrap {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
}

.video-carousel {
  overflow: hidden;
  border-radius: var(--radius-lg);
  flex: 1;
}

.video-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.video-slide {
  min-width: 100%;
  padding: 0 4px;
  box-sizing: border-box;
}

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

.video-card:hover {
  border-color: var(--border-light);
}

.video-player {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  background: #000;
  cursor: pointer;
  overflow: hidden;
}

.video-player iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-thumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease, opacity 0.3s ease;
}

.video-player:hover .video-thumb {
  transform: scale(1.03);
}

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 2;
  opacity: 0.85;
  transition: opacity var(--transition), transform var(--transition);
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.5));
}

.video-player:hover .video-play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.1);
}

.video-player.playing .video-thumb,
.video-player.playing .video-play-btn {
  opacity: 0;
  pointer-events: none;
}

/* Carousel Arrows */
.carousel-arrow {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  z-index: 2;
}

.carousel-arrow:hover {
  background: var(--bg-card-hover);
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 20px var(--green-glow);
}

.carousel-arrow:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  box-shadow: none;
  border-color: var(--border);
  color: var(--text-tertiary);
}

/* Carousel Dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-light);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  padding: 0;
}

.carousel-dot:hover {
  background: var(--text-tertiary);
}

.carousel-dot.active {
  background: var(--green);
  box-shadow: 0 0 8px var(--green-glow-strong);
  transform: scale(1.2);
}

/* ============================================
   Animations
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ecosystem-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    gap: 16px;
  }

  .nav-actions.open {
    display: flex;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    margin-top: 200px;
  }

  .hero {
    padding: 120px 0 60px;
    min-height: auto;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-desc {
    font-size: 16px;
  }

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

  .overview-main {
    grid-column: span 1;
  }

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

  .steps-grid {
    flex-direction: column;
    align-items: center;
  }

  .step-connector {
    padding-top: 0;
    transform: rotate(90deg);
  }

  .step-card {
    max-width: 100%;
    width: 100%;
  }

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

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

  .ecosystem-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .stats-grid {
    gap: 24px;
  }

  .stat-divider {
    display: none;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .carousel-arrow {
    width: 40px;
    height: 40px;
  }

  .carousel-arrow svg {
    width: 20px;
    height: 20px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 28px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn-lg {
    width: 100%;
    justify-content: center;
  }

  .stats-grid {
    flex-direction: column;
  }

  .partners-grid {
    gap: 20px;
  }
}