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

:root {
  --primary: #08BCB8;
  --primary-dark: #06a3a0;
  --secondary: #FFCF36;
  --accent: #FF7F20;
  --text: #374151;
  --text-light: #6b7280;
  --bg: #f9fafb;
  --white: #ffffff;
  --gradient: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Scroll animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Selection color */
::selection {
  background: var(--primary);
  color: var(--white);
}

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

/* Header */
.header {
  background: var(--white);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

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

.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 101;
}

.mobile-menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}

.nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
}

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

.logo-img {
  height: 40px;
  width: auto;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

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

.lang-switcher {
  display: flex;
  gap: 8px;
}

.lang-link {
  padding: 6px 12px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-light);
  transition: all 0.2s;
}

.lang-link:hover {
  background: var(--bg);
  color: var(--text);
}

.lang-link.active {
  background: var(--primary);
  color: var(--white);
}

.btn-login {
  padding: 10px 24px;
  background: var(--gradient);
  color: var(--white);
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  margin-left: 16px;
  transition: all 0.2s;
}

.btn-login:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(8, 188, 184, 0.3);
}

/* Hero Section */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(180deg, var(--white) 0%, var(--bg) 100%);
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(rgba(8, 188, 184, 0.05) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-text {
  max-width: 560px;
}

.hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(8, 188, 184, 0.1) 0%, rgba(255, 207, 54, 0.1) 100%);
  padding: 8px 16px;
  border-radius: 24px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 24px;
}

.hero-tagline .ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.hero-tagline .ai-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

.hero-tagline .ai-dot:nth-child(1) { background: var(--primary); animation-delay: 0s; }
.hero-tagline .ai-dot:nth-child(2) { background: var(--secondary); animation-delay: 0.2s; }
.hero-tagline .ai-dot:nth-child(3) { background: var(--accent); animation-delay: 0.4s; }

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.2); opacity: 1; }
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--text) 0%, var(--primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(8, 188, 184, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(8, 188, 184, 0.4);
}

.btn-secondary {
  background: var(--white);
  color: var(--text);
  border: 2px solid #e5e7eb;
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.hero-demo {
  position: relative;
}

.demo-svg {
  width: 100%;
  max-width: 700px;
  height: auto;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  background: var(--white);
  animation: float 6s ease-in-out infinite;
}

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

/* Features Section */
.features {
  padding: 100px 0;
  background: var(--white);
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 60px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.section-header p {
  font-size: 1.125rem;
  color: var(--text-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  padding: 32px;
  background: var(--bg);
  border-radius: 16px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.feature-card:nth-child(1) .feature-icon { background: rgba(8, 188, 184, 0.15); }
.feature-card:nth-child(2) .feature-icon { background: rgba(255, 207, 54, 0.2); }
.feature-card:nth-child(3) .feature-icon { background: rgba(255, 127, 32, 0.15); }
.feature-card:nth-child(4) .feature-icon { background: rgba(8, 188, 184, 0.15); }
.feature-card:nth-child(5) .feature-icon { background: rgba(255, 207, 54, 0.2); }
.feature-card:nth-child(6) .feature-icon { background: rgba(255, 127, 32, 0.15); }
.feature-card:nth-child(7) .feature-icon { background: rgba(8, 188, 184, 0.15); }
.feature-card:nth-child(8) .feature-icon { background: rgba(255, 207, 54, 0.2); }
.feature-card:nth-child(9) .feature-icon { background: rgba(255, 127, 32, 0.15); }
.feature-card:nth-child(10) .feature-icon { background: rgba(8, 188, 184, 0.15); }
.feature-card:nth-child(11) .feature-icon { background: rgba(255, 207, 54, 0.2); }

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Staggered animation delays */
.feature-card:nth-child(1) { transition-delay: 0s; }
.feature-card:nth-child(2) { transition-delay: 0.1s; }
.feature-card:nth-child(3) { transition-delay: 0.2s; }
.feature-card:nth-child(4) { transition-delay: 0.3s; }
.feature-card:nth-child(5) { transition-delay: 0.4s; }
.feature-card:nth-child(6) { transition-delay: 0.5s; }
.feature-card:nth-child(7) { transition-delay: 0s; }
.feature-card:nth-child(8) { transition-delay: 0.1s; }
.feature-card:nth-child(9) { transition-delay: 0.2s; }
.feature-card:nth-child(10) { transition-delay: 0.3s; }
.feature-card:nth-child(11) { transition-delay: 0.4s; }

/* AI Planning Section */
.ai-planning {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg) 0%, var(--white) 100%);
  overflow: hidden;
}

.ai-planning-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.ai-planning-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.ai-planning-subtitle {
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: 40px;
  line-height: 1.7;
}

.ai-planning-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Chat mockup */
.chat-mockup {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid #e5e7eb;
}

.chat-header {
  background: var(--gradient);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-weight: 600;
  font-size: 0.95rem;
}

.chat-header-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  animation: pulse 1.5s ease-in-out infinite;
}

.chat-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chat-msg {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.chat-msg.user {
  justify-content: flex-end;
}

.chat-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}

.chat-bubble {
  background: var(--bg);
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.5;
  max-width: 80%;
}

.chat-msg.user .chat-bubble {
  background: var(--primary);
  color: var(--white);
}

.chat-plan {
  background: var(--bg);
  border-radius: 12px;
  padding: 16px;
  border: 1px solid rgba(8, 188, 184, 0.2);
}

.chat-plan-header {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.chat-plan-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 0.85rem;
  color: var(--text);
}

.plan-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(8, 188, 184, 0.15);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  flex-shrink: 0;
}

.chat-plan-btn {
  margin-top: 12px;
  background: var(--gradient);
  color: var(--white);
  padding: 8px 16px;
  border-radius: 8px;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
}

@media (max-width: 968px) {
  .ai-planning-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .ai-planning-text h2 {
    font-size: 2rem;
  }

  .ai-planning-visual {
    order: -1;
  }
}

/* Screencast Section */
.screencast {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--white) 0%, var(--bg) 100%);
  overflow: hidden;
}

.screencast-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.screencast-visual {
  position: relative;
}

.screen-mockup {
  background: #1a1a1a;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.screen-header {
  background: #2d2d2d;
  padding: 12px 16px;
  display: flex;
  gap: 8px;
  align-items: center;
}

.rec-indicator {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: #ff5f57;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.rec-indicator::before {
  content: '';
  width: 8px;
  height: 8px;
  background: #ff5f57;
  border-radius: 50%;
  animation: rec-blink 1s ease-in-out infinite;
}

@keyframes rec-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.screen-header .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

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

.screen-body {
  padding: 40px;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline {
  width: 100%;
}

.timeline-track {
  height: 8px;
  background: #3a3a3a;
  border-radius: 4px;
  position: relative;
  margin-bottom: 24px;
}

.timeline-progress {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 50%;
  background: var(--gradient);
  border-radius: 4px;
  animation: progress-move 3s ease-in-out infinite;
}

@keyframes progress-move {
  0%, 100% { width: 20%; }
  50% { width: 80%; }
}

.timeline-thumb {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 16px;
  height: 16px;
  background: var(--white);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  animation: thumb-move 3s ease-in-out infinite;
}

@keyframes thumb-move {
  0%, 100% { left: 20%; }
  50% { left: 80%; }
}

.timeline-frames {
  display: flex;
  gap: 12px;
}

.timeline-frames .frame {
  flex: 1;
  height: 80px;
  background: #2d2d2d;
  border-radius: 8px;
  border: 2px solid transparent;
  transition: all 0.3s;
}

.timeline-frames .frame.active {
  border-color: var(--primary);
  background: #3a3a3a;
}

.screencast-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.screencast-subtitle {
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: 40px;
  line-height: 1.7;
}

.screencast-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sc-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.sc-icon {
  width: 48px;
  height: 48px;
  background: rgba(8, 188, 184, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sc-icon svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.sc-feature h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.sc-feature p {
  font-size: 0.875rem;
  color: var(--text-light);
  line-height: 1.5;
}

@media (max-width: 968px) {
  .screencast-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .screencast-visual {
    order: -1;
  }

  .screencast-text h2 {
    font-size: 2rem;
  }
}

/* Pricing Section */
.pricing {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg) 0%, var(--white) 100%);
}

.pricing-card {
  max-width: 500px;
  margin: 0 auto;
  background: var(--white);
  border-radius: 24px;
  padding: 48px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(8, 188, 184, 0.15);
}

.pricing-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--gradient);
}

.pricing-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(8, 188, 184, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.pricing-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
  color: var(--white);
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.pricing-price {
  font-size: 3rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
}

.pricing-details {
  color: var(--text-light);
  margin-bottom: 32px;
}

.pricing-features {
  text-align: left;
  margin-bottom: 32px;
}

.pricing-features h4 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-light);
  margin-bottom: 16px;
}

.pricing-features ul {
  list-style: none;
}

.pricing-features li {
  padding: 12px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid #f3f4f6;
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features li::before {
  content: '✓';
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(8, 188, 184, 0.15);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* CTA Section */
.cta-section {
  padding: 100px 0;
  background: var(--gradient);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 50%);
  animation: cta-pulse 8s ease-in-out infinite;
}

@keyframes cta-pulse {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(10%, 10%); }
}

.cta-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
}

.btn-cta {
  background: var(--white);
  color: var(--primary);
  padding: 18px 40px;
  font-size: 1.125rem;
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Footer */
.footer {
  background: var(--text);
  color: var(--white);
  padding: 60px 0 30px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  height: 36px;
  margin-bottom: 16px;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-bottom {
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
  color: var(--primary);
  text-decoration: none;
}

/* Responsive */
@media (max-width: 968px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text {
    max-width: 100%;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-demo {
    order: -1;
  }

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

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 80px 24px 24px;
    gap: 0;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    transition: right 0.3s ease;
    z-index: 100;
  }

  .nav-open .nav-menu {
    right: 0;
  }

  .nav-open .nav-overlay {
    display: block;
  }

  .nav-open .mobile-menu-btn span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-open .mobile-menu-btn span:nth-child(2) {
    opacity: 0;
  }

  .nav-open .mobile-menu-btn span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .nav-links {
    flex-direction: column;
    gap: 0;
    width: 100%;
  }

  .nav-links a {
    padding: 16px 0;
    border-bottom: 1px solid #f3f4f6;
    font-size: 1.1rem;
  }

  .lang-switcher {
    padding: 20px 0;
    justify-content: flex-start;
    border-bottom: 1px solid #f3f4f6;
  }

  .btn-login {
    margin: 20px 0 0 0;
    text-align: center;
    padding: 14px 24px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

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

  .footer-content {
    flex-direction: column;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

/* Scroll to top button */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--gradient);
  color: var(--white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-lg);
  z-index: 90;
}

.scroll-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(8, 188, 184, 0.4);
}

.scroll-top svg {
  width: 24px;
  height: 24px;
}

/* AI Animation Enhancements */
.ai-glow {
  position: relative;
}

.ai-glow::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(8, 188, 184, 0.3) 0%, transparent 70%);
  animation: glow-pulse 2s ease-in-out infinite;
  pointer-events: none;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}