/* ============================================
   MON IA PRI[ÉE — Design System
   ============================================ */

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

:root {
  /* Colors */
  --primary: #1a2b5f;
  --primary-light: #2d4a8c;
  --primary-dark: #0f1a3d;
  --accent: #4f8cff;
  --accent-light: #7aabff;
  --accent-glow: rgba(79, 140, 255, 0.15);
  --success: #22c55e;
  --success-light: #dcfce7;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --danger: #ef4444;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400:  #94a3b8;
  --gray-500:  #64748b;
  --gray-600:  #475569;
  --gray-700:  #334155;
  --gray-800:  #1e293b;
  --gray-900:  #0f172a;

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1a2b5f 50%, #1e3a6e 100%);
  --gradient-accent: linear-gradient(135deg, #4f8cff 0%, #6366f1 100%);
  --gradient-card: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);

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

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.06);
  --shadow-glow: 0 0 30px rgba(79, 140, 255, 0.2);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --nav-height: 72px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--accent-light); }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
}
h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }
p { color: var(--gray-600); line-height: 1.7; }
.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}
.container--narrow {
  max-width: var(--container-narrow);
}

/* --- Section --- */
.section {
  padding: var(--space-4xl) 0;
}
.section--dark {
  background: var(--gradient-dark);
  color: var(--white);
}
.section--dark h2, .section--dark h3, .section--dark h4 { color: var(--white); }
.section--dark p { color: var(--gray-300); }
.section--gray { background: var(--gray-50); }

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}
.section-header p {
  margin-top: var(--space-md);
  font-size: 1.125rem;
}
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
}
.btn--primary {
  background: var(--gradient-accent);
  color: var(--white);
  border-color: transparent;
  box-shadow: var(--shadow-md), 0 0 20px rgba(79, 140, 255, 0.15);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(79, 140, 255, 0.25);
  color: var(--white);
}
.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.3);
}
.btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--white);
}
.btn--outline-dark {
  background: transparent;
  color: var(--primary);
  border-color: var(--gray-300);
}
.btn--outline-dark:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn--lg {
  padding: 1rem 2.25rem;
  font-size: 1.1rem;
  border-radius: var(--radius-lg);
}
.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

/* --- Cards --- */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--gray-300);
}
.card--highlight {
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
  position: relative;
}
.card--highlight::before {
  content: 'Le plus demandé';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);  
background: var(--gradient-accent);
  color: var(--white);
  padding: 0.25rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

/* --- Badge --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.75rem;
  background: var(--accent-glow);
  color: var(--accent);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
}
.badge--success { background: var(--success-light); color: #15803d; }
.badge--warning { background: var(--warning-light); color: #92400e; }

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  z-index: 1000;
  transition: all var(--transition-base);
}
.nav.scrolled {
  background: rgba(15, 23, 42, 0.98);
  box-shadow: 0 4px :20px rgba(0, 0, 0, 0.3);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(-container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  text-decoration: none;
}
.nav__logo:hover { color: var(--white); }
.nav__logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}
.nav__links a {
  color: var(--gray-300);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition-fast);
  text-decoration: none;
}
.nav__links a:hover, .nav__links a.active {
  color: var(--white);
}
.nav__cta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Mobile menu */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.nav__hamburger span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition-base);
}
.nav__hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.98);
  backdrop-filter: blur(12px);
  padding: var(--space-2xl);
  z-index: 999;
}
.nav__mobile.open { display: flex; flex-direction: column; gap: var(--space-lg); }
.nav__mobile a {
  color: var(--white);
  font-size: 1.25rem;
  font-weight: 500;
  padding: var(--space-md) 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  display: block;
  text-decoration: none;
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 80%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(79, 140, 255, 0.08) 0%, transparent 60%);
  pointer-events: none;
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79, 140, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 140, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black, transparent);
}
.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero__content h1 {
  color: var(--white);
  margin-bottom: var(--space-lg);
}
.hero__content h1 span {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__content p {
  color: var(--gray-300);
  font-size: 1.2rem;
  line-height: 1.7;
  margin-bottom: var(--space-2xl);
  max-width: 560px;
}
.hero__actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.hero__trust {
  margin-top: var(--space-3xl);
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}
.hero__trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--gray-400);
  font-size: 0.9rem;
}
.hero__trust-item svg { width: 20px; height: 20px; color: var(--success); flex-shrink: 0; }

/* --- Feature Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}
.feature-card {
  padding: var(--space-2xl);
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
}
.feature-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(79, 140, 255, 0.08);
  transform: translateY(-4px);
}
.feature-card__icon {
  width: 48px;
  height: 48px;
  background: var(--accent-glow);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}
.feature-card h3 { margin-bottom: var(--space-sm); font-size: 1.15rem; }
.feature-card p { font-size: 0.95rem; }

/* --- Sovereignty Ladder --- */
.sovereignty {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  counter-reset: level;
}
.sovereignty__level {
  position: relative;
  padding: var(--space-2xl);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  counter-increment: level;
}
.sovereignty__level:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(79, 140, 255, 0.3);
  transform: translateY(-4px);
}
.sovereignty__level::before {
  content: 'Niveau ' counter(level);
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-md);
}
.sovereignty__level h3 { color: var(--white); margin-bottom: var(--space-sm); font-size: 1.15rem; }
.sovereignty__level p { color: var(--gray-400); font-size: 0.9rem; }
.sovereignty__level .tag {
  display: inline-block;
  margin-top: var(--space-md);
  padding: 0.2rem 0.6rem;
  background: rgba(79, 140, 255, 0.15);
  color: var(--accent-light);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
}

/* --- Stats --- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  text-align: center;
}
.stat__number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-xs);
}
.stat__label {
  font-size: 0.9rem;
  color: var(--gray-400);
}

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}
.testimonial {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  border: 1px solid var(--gray-200);
  position: relative;
}
.testimonial__quote {
  font-size: 1rem;
  color: var(--gray-700);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  font-style: italic;
}
.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.testimonial__avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
}
.testimonial__name { font-weight: 600; color: var(--gray-800); font-size: 0.95rem; }
.testimonial__role { font-size: 0.85rem; color: var(--gray-500);
}

/* --- CTA Section --- */
.cta-section {
  background: var(--gradient-hero);
  padding: var(--space-4xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(79, 140, 255, 0.1) 0%, transparent 60%);
}
.cta-section h2 { color: var(--white); margin-bottom: var(--space-md); position: relative; }
.cta-section p { color: var(--gray-300); margin-bottom: var(--space-2xl); position: relative; font-size: 1.1rem; }
.cta-section .btn { position: relative; }

/* --- Footer --- */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: var(--space-3xl) 0 var(--space-xl);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}
.footer__brand p { font-size: 0.9rem; margin-top: var(--space-md); max-width: 300px; }
.footer__col h4 {
  color: var(--white);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
}
.footer__col ul { list-style: none; }
.footer__col li { margin-bottom: var(--space-sm); }
.footer__col a { color: var(--gray-400); font-size: 0.9rem; }
.footer__col a:hover { color: var(--white); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}
.footer__bottom a { color: var(--gray-500); }

/* --- Chatbot Widget --- */
.chatbot-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-xl), 0 0 30px rgba(79, 140, 255, 0.3);
  z-index: 1001;
  transition: all var(--transition-base);
}
.chatbot-toggle:hover {
  transform: scale(1.08);
  box-shadow: var(--shadow-xl), 0 0 40px rgba(79, 140, 255, 0.4);
}
.chatbot-toggle svg { width: 28px; height: 28px; color: var(--white); }
.chatbot-toggle .close-icon { display: none; }
.chatbot-toggle.open .chat-icon { display: none; }
.chatbot-toggle.open .close-icon { display: block; }

.chatbot-window {
  position: fixed;
  bottom: 100px;
  right: 24px;
  width: 380px;
  max-height: 520px;
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl), 0 0 40px rgba(0,0,0,0.12);
  z-index: 1001;
  display: none;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--gray-200);
}
.chatbot-window.open { display: flex; }
.chatbot-header {
  background: var(--gradient-hero);
  padding: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.chatbot-header__avatar {
  width: 40px;
  height: 40px;
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.chatbot-header__info h4 { color: var(--white); font-size: 0.95rem; margin: 0; }
.chatbot-header__info p { color: var(--gray-300); font-size: 0.8rem; margin: 0; }
.chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-height: 340px;
}
.chatbot-msg {
  max-width: 85%;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  line-height: 1.5;
  animation: msgIn 0.3s ease;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.chatbot-msg--bot {
  background: var(--gray-100);
  color: var(--gray-800);
  align-self: flex-start;
  border-bottom-left-radius: var(--space-xs);
}
.chatbot-msg--user {
  background: var(--gradient-accent);
  color: var(--white);
  align-self: flex-end;
  border-bottom-right-radius: var(--space-xs);
}
.chatbot-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding: 0 var(--space-lg) var(--space-sm);
}
.chatbot-suggestion {
  padding: 0.3rem 0.7rem;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(79, 140, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
}
.chatbot-suggestion:hover {
  background: var(--accent);
  color: var(--white);
}
.chatbot-input {
  display: flex;
  border-top: 1px solid var(--gray-200);
  padding: var(--space-sm);
}
.chatbot-input input {
  flex: 1;
  padding: var(--space-sm) var(---space-md);
  border: none;
  outline: none;
  font-family: var(--font-body);
  font-size: 0.9rem;
  background: transparent;
}
.chatbot-input button {
  padding: var(--space-sm) var(--space-md);
  background: var(--gradient-accent);
  color: var(--white);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  transition: opacity var(--transition-fast);
}
.chatbot-input button:hover { opacity: 0.9; }

/* --- 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);
}
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* Float animation for decorative elements */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
/* Pulse for the chatbot */
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(79, 140, 255, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(79, 140, 255, 0); }
}
.chatbot-toggle:not(.open) { animation: pulse 3s infinite; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .sovereignty { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: var(--space-2xl); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav__links, .nav__cta { display: none; }
  .nav__hamburger { display: flex; }
  .hero { min-height: auto; padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-3xl); }
  .hero__content h1 { font-size: 2rem; }
  .hero__trust { flex-direction: column; align-items: flex-start; gap: var(--space-md); }
  .section { padding: var(--space-3xl) 0; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: var(--space-md); text-align: center; }
  .chatbot-window { right: 12px; left: 12px; width: auto; bottom: 90px; }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-md); }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .stats-row { grid-template-columns: 1fr; }
}