/* Modern CSS variables and reset */
:root {
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --bg-primary: #080D11;
  --bg-secondary: #0D161A;
  --bg-card: rgba(255, 255, 255, 0.03);
  --border-card: rgba(255, 255, 255, 0.08);
  
  /* Color Palette - Vibrant Emeralds and Forest Slate */
  --clr-emerald: #10B981;
  --clr-emerald-glow: rgba(16, 185, 129, 0.2);
  --clr-teal: #14B8A6;
  --clr-warning: #F59E0B;
  --clr-danger: #EF4444;
  --clr-danger-glow: rgba(239, 68, 68, 0.15);
  
  --text-primary: #F3F4F6;
  --text-secondary: #9CA3AF;
  --text-muted: #6B7280;
  
  --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --glow-radius: 120px;
}

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

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

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

/* Background Glowing Elements */
.decor-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}

.glow-1 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--clr-emerald), transparent 70%);
  top: -100px;
  right: -50px;
}

.glow-2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--clr-teal), transparent 70%);
  top: 500px;
  left: -200px;
}

.glow-3 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--clr-emerald), transparent 70%);
  bottom: 100px;
  right: -100px;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Header & Nav */
header {
  background: rgba(8, 13, 17, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-card);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 0;
}

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

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 20px;
}

.nav-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 8px;
}

.logo-text {
  letter-spacing: -0.5px;
}

.accent-text {
  color: var(--clr-emerald);
}

nav {
  display: flex;
  gap: 32px;
}

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

.nav-link:hover {
  color: var(--text-primary);
  text-shadow: 0 0 10px var(--clr-emerald-glow);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 12px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
  border-radius: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--clr-emerald), var(--clr-teal));
  color: #080D11;
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(16, 185, 129, 0.5);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-card);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Hero Section */
.hero-section {
  padding: 80px 0;
  min-height: calc(100vh - 78px);
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.badge {
  display: inline-block;
  background: var(--clr-emerald-glow);
  color: var(--clr-emerald);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border: 1px solid rgba(16, 185, 129, 0.2);
  margin-bottom: 24px;
  font-family: var(--font-heading);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -1.5px;
}

.glow-span {
  background: linear-gradient(135deg, var(--clr-emerald), var(--clr-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
}

.hero-description {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 520px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 40px;
  border-top: 1px solid var(--border-card);
  padding-top: 32px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: var(--clr-emerald);
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

/* Phone Mockup Screen */
.phone-mockup-wrapper {
  perspective: 1000px;
  display: flex;
  justify-content: center;
}

.phone-mockup {
  width: 320px;
  height: 640px;
  background: #000;
  border-radius: 40px;
  border: 12px solid #22252A;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.phone-mockup:hover {
  transform: translateY(-8px) rotateY(-5deg) rotateX(5deg);
  box-shadow: 0 35px 60px -12px rgba(16, 185, 129, 0.15);
}

.phone-camera {
  width: 140px;
  height: 25px;
  background: #22252A;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  border-bottom-left-radius: 16px;
  border-bottom-right-radius: 16px;
  z-index: 10;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: #0B0F17;
  padding: 36px 16px 16px 16px;
  display: flex;
  flex-direction: column;
}

/* App Mockup UI Elements */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.app-title-mini {
  font-size: 12px;
  font-weight: 600;
}

.app-status-badge {
  font-size: 9px;
  background: rgba(16, 185, 129, 0.2);
  color: var(--clr-emerald);
  padding: 2px 6px;
  border-radius: 4px;
}

.app-scanner-view {
  flex-grow: 1;
  background: #111827;
  border-radius: 16px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.scan-target-box {
  width: 140px;
  height: 140px;
  position: absolute;
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
}

.corner {
  position: absolute;
  width: 16px;
  height: 16px;
  border: 3px solid var(--clr-emerald);
}

.top-left { top: 0; left: 0; border-right: none; border-bottom: none; }
.top-right { top: 0; right: 0; border-left: none; border-bottom: none; }
.bottom-left { bottom: 0; left: 0; border-right: none; border-top: none; }
.bottom-right { bottom: 0; right: 0; border-left: none; border-top: none; }

.scan-laser {
  width: 100%;
  height: 2px;
  background: var(--clr-emerald);
  box-shadow: 0 0 12px var(--clr-emerald);
  position: absolute;
  top: 0;
  animation: laserScan 3s infinite linear;
}

@keyframes laserScan {
  0% { top: 0; }
  50% { top: 100%; }
  100% { top: 0; }
}

.detected-text-box {
  position: absolute;
  bottom: 12px;
  left: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.85);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 10px;
  border: 1px solid var(--border-card);
}

.detected-text-box .tag {
  color: var(--clr-emerald);
  font-weight: 700;
  font-size: 8px;
  display: block;
}

.app-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-card);
  border-radius: 12px;
  padding: 12px;
  margin-top: 12px;
}

.card-header-app {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.card-health-score {
  font-weight: 700;
}

.score-warning { color: var(--clr-warning); }

.app-product-name {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 8px;
}

.agent-pills {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.pill {
  font-size: 9px;
  padding: 4px 8px;
  border-radius: 6px;
  font-weight: 500;
}

.pill-toxicologist {
  background: var(--clr-danger-glow);
  color: var(--clr-danger);
}

.pill-dietitian {
  background: rgba(245, 158, 11, 0.1);
  color: var(--clr-warning);
}

/* Features Grid */
.features-section {
  padding: 100px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-card);
  border-bottom: 1px solid var(--border-card);
}

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

.section-title {
  font-family: var(--font-heading);
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--text-secondary);
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 20px;
  padding: 40px;
  transition: var(--transition-smooth);
}

.feature-card:hover {
  border-color: var(--clr-emerald);
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.05);
  transform: translateY(-5px);
}

.feature-icon {
  font-size: 40px;
  margin-bottom: 24px;
}

.feature-card h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 14px;
}

/* Simulator Section */
.simulator-section {
  padding: 100px 0;
}

.badge-accent {
  background: rgba(20, 184, 166, 0.1);
  color: var(--clr-teal);
  border-color: rgba(20, 184, 166, 0.2);
}

.simulator-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: stretch;
  margin-top: 40px;
}

.label-selector-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.label-selector-panel h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.sample-product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.sample-product-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--clr-teal);
  transform: translateX(6px);
}

.sample-thumb {
  font-size: 32px;
  background: rgba(255, 255, 255, 0.03);
  width: 60px;
  height: 60px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-card);
}

.sample-meta h4 {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

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

.screen-output-panel {
  background: #000;
  border-radius: 28px;
  border: 8px solid #22252A;
  min-height: 480px;
  position: relative;
  overflow: hidden;
}

.phone-screen-frame {
  width: 100%;
  height: 100%;
  background: #0B0F17;
  padding: 32px;
  min-height: 460px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Simulator Loader */
.sim-loader-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(11, 15, 23, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 10;
  display: none;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(16, 185, 129, 0.1);
  border-top-color: var(--clr-emerald);
  border-radius: 50%;
  animation: spin 0.8s infinite linear;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.sim-placeholder {
  text-align: center;
  max-width: 320px;
  margin: 0 auto;
}

.placeholder-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.6;
}

.sim-placeholder h4 {
  font-family: var(--font-heading);
  font-size: 18px;
  margin-bottom: 8px;
}

.sim-placeholder p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* Simulator Report Card */
.sim-report {
  animation: reportSlideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes reportSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.report-category {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--clr-emerald);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.report-header h3 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
}

.score-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 4px solid var(--border-card);
}

.score-good { border-color: var(--clr-emerald); color: var(--clr-emerald); }
.score-average { border-color: var(--clr-warning); color: var(--clr-warning); }
.score-bad { border-color: var(--clr-danger); color: var(--clr-danger); }

.score-val {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 800;
}

.score-total {
  font-size: 9px;
  opacity: 0.6;
}

.report-card-section {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}

.report-card-section h5, .flagged-box h5, .swap-box h5 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.report-card-section p {
  font-size: 13px;
  color: var(--text-secondary);
}

.agent-cards-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.agent-mini-card {
  border-radius: 12px;
  padding: 12px;
  border: 1px solid var(--border-card);
}

.agent-mini-card h6 {
  font-size: 10px;
  font-weight: 700;
  margin-bottom: 6px;
}

.agent-mini-card p {
  font-size: 11px;
  line-height: 1.4;
}

.block-toxicologist {
  background: var(--clr-danger-glow);
  border-color: rgba(239, 68, 68, 0.2);
  color: #FCA5A5;
}

.block-dietitian {
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.2);
  color: #FDE047;
}

.flagged-box, .swap-box {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}

.flagged-list, .swap-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.flagged-list li, .swap-list li {
  font-size: 12px;
  font-weight: 500;
}

/* AI Agents Showcase */
.agents-section {
  padding: 100px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-card);
  border-bottom: 1px solid var(--border-card);
}

.agents-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 40px;
}

.agent-profile-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 24px;
  padding: 48px;
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.agent-profile-card:hover {
  transform: translateY(-4px);
  border-color: var(--clr-teal);
}

.agent-profile-card .agent-badge {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 10px;
  font-weight: 700;
  background: var(--clr-emerald-glow);
  color: var(--clr-emerald);
  padding: 4px 10px;
  border-radius: 4px;
}

.agent-avatar {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 24px;
}

.avatar-toxicologist {
  background: var(--clr-danger-glow);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.avatar-dietitian {
  background: rgba(20, 184, 166, 0.1);
  border: 1px solid rgba(20, 184, 166, 0.2);
}

.agent-profile-card h3 {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
}

.agent-role {
  font-size: 13px;
  color: var(--clr-emerald);
  font-weight: 600;
  margin-bottom: 20px;
}

.agent-bio {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}

.agent-highlights {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.agent-highlights li {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

/* XP Rewards Section */
.rewards-section {
  padding: 100px 0;
}

.rewards-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.rewards-content h2 {
  font-family: var(--font-heading);
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 16px;
}

.rewards-content p {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.rewards-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.reward-item {
  display: flex;
  gap: 16px;
}

.reward-icon {
  font-size: 28px;
  width: 48px;
  height: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.reward-item h4 {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.reward-item p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 0;
}

.rank-card {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(20, 184, 166, 0.05));
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 24px;
  padding: 40px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.rank-icon {
  font-size: 56px;
  margin-bottom: 16px;
}

.rank-subtitle {
  font-size: 10px;
  letter-spacing: 1px;
  font-weight: 700;
  color: var(--clr-emerald);
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}

.rank-card h3 {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 24px;
}

.xp-bar-wrapper {
  background: rgba(255, 255, 255, 0.05);
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 12px;
}

.xp-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--clr-emerald), var(--clr-teal));
  border-radius: 4px;
}

.xp-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.rank-bonus {
  font-size: 13px;
  font-weight: 600;
  color: var(--clr-teal);
}

/* Download Section */
.download-section {
  padding: 80px 0;
}

.download-card {
  background: radial-gradient(circle at top right, rgba(16, 185, 129, 0.15), transparent 60%), var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 32px;
  padding: 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.download-text h2 {
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.download-text p {
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 32px auto;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* Footer */
footer {
  background: #04070A;
  border-top: 1px solid var(--border-card);
  padding: 80px 0 40px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 64px;
  margin-bottom: 60px;
}

.footer-brand .logo-text {
  font-size: 24px;
}

.footer-brand p {
  color: var(--text-muted);
  margin-top: 8px;
  font-size: 14px;
}

.favicon-acknowledgment {
  margin-top: 16px;
  display: inline-block;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 11px;
  color: var(--text-secondary);
}

.footer-links h4 {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

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

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

.footer-links ul a:hover {
  color: var(--clr-emerald);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 40px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--text-secondary);
  transition: var(--transition-smooth);
}

.footer-bottom a:hover {
  color: var(--clr-emerald);
}

/* Responsive adjustments */
@media(max-width: 1024px) {
  .hero-grid, .simulator-layout, .rewards-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-visual {
    order: -1;
  }
}

@media(max-width: 768px) {
  nav {
    display: none;
  }
  .hero-title {
    font-size: 40px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .agents-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .download-card {
    padding: 32px;
  }
  .download-buttons {
    flex-direction: column;
  }
}