/**
 * INTELLIA237 — Main Stylesheet
 * Architecture : Cahier + Ligne, Éducation Premium, Responsive 320px-1920px
 */

/* ── Typographies Web ── */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Playfair+Display:ital,wght@0,600;0,700;0,800;1,600&display=swap');

/* ── Utilitaires & Mise en Page ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
  position: relative;
}

.section-alt {
  background-color: var(--color-bg-body-alt);
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-3xl) auto;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-brand-indigo);
  background: var(--color-brand-lavender);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(2rem, 3.2vw, 2.75rem);
  color: var(--color-ink-primary);
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  color: var(--color-ink-secondary);
  line-height: 1.6;
}

/* ── Boutons & Actions ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 13px 24px;
  border-radius: var(--radius-pill);
  min-height: 48px;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-brand-indigo) 0%, var(--color-brand-purple) 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(88, 86, 214, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(88, 86, 214, 0.38);
  color: #FFFFFF;
}

.btn-secondary {
  background: var(--color-surface-white);
  color: var(--color-ink-primary);
  border: 1.5px solid var(--color-border-default);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--color-brand-lavender-soft);
  border-color: var(--color-brand-indigo);
  color: var(--color-brand-indigo);
  transform: translateY(-1px);
}

.btn-playstore {
  background: #0B0B14;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 6px 18px rgba(11, 11, 20, 0.3);
  padding: 10px 22px;
}

.btn-playstore:hover {
  background: #181728;
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(11, 11, 20, 0.4);
  color: #FFFFFF;
}

.btn-playstore svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.btn-playstore-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  line-height: 1.15;
}

.btn-playstore-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.78;
}

.btn-playstore-title {
  font-size: 0.9375rem;
  font-weight: 700;
}

/* ── Header & Navigation ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250, 248, 245, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-subtle);
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background-color var(--transition-fast);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

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

.brand-logo-img {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: var(--shadow-sm);
}

.brand-title-wrap {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-sans);
  font-size: 1.1875rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--color-ink-primary);
  line-height: 1.1;
}

.brand-tagline {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ink-tertiary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-ink-secondary);
  padding: 8px 2px;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-brand-indigo);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-brand-indigo);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-cta-desktop {
  display: flex;
  align-items: center;
}

/* ── Menu Mobile Hamburger ── */
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-sm);
  color: var(--color-ink-primary);
  flex-direction: column;
  justify-content: space-around;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: currentColor;
  transition: all var(--transition-fast);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(250, 248, 245, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
  z-index: 999;
}

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

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.mobile-nav-link {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-ink-primary);
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border-subtle);
}

/* ── Hero Section ── */
.hero-section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-4xl);
  background: radial-gradient(circle at 80% 20%, rgba(175, 82, 222, 0.08) 0%, transparent 60%),
              radial-gradient(circle at 20% 80%, rgba(88, 86, 214, 0.07) 0%, transparent 60%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--color-brand-lavender);
  border: 1px solid rgba(88, 86, 214, 0.18);
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-brand-indigo);
  margin-bottom: var(--space-lg);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-brand-indigo);
}

.hero-title {
  font-size: clamp(2.5rem, 4.4vw, 3.85rem);
  font-weight: 700;
  line-height: 1.12;
  color: var(--color-ink-primary);
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.hero-title span {
  display: block;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--color-brand-indigo) 0%, var(--color-brand-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: clamp(1.0625rem, 1.25vw, 1.25rem);
  line-height: 1.65;
  color: var(--color-ink-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.hero-guarantee {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-subtle);
  width: 100%;
  max-width: 500px;
}

.guarantee-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-ink-tertiary);
}

.guarantee-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-cm-green);
  flex-shrink: 0;
}

/* ── Hero Visual Showcase ── */
.hero-visual-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-poster-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(21, 19, 36, 0.16);
  border: 4px solid #FFFFFF;
  background: #FFFFFF;
  transition: transform var(--transition-smooth);
}

.hero-poster-frame:hover {
  transform: translateY(-4px);
}

.hero-poster-img {
  width: 100%;
  max-width: 440px;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  display: block;
}

/* Badges flottants sur le visuel */
.floating-badge {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: 10px 14px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 2;
  animation: float 5s ease-in-out infinite alternate;
}

.floating-badge-kira {
  top: 12%;
  left: -24px;
  border-left: 4px solid var(--color-kira-primary);
}

.floating-badge-leo {
  bottom: 14%;
  right: -24px;
  border-left: 4px solid var(--color-leo-primary);
  animation-delay: -2.5s;
}

.floating-badge-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--color-surface-muted);
}

.floating-badge-info {
  display: flex;
  flex-direction: column;
}

.floating-badge-name {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-ink-primary);
  line-height: 1.2;
}

.floating-badge-role {
  font-size: 0.6875rem;
  color: var(--color-ink-tertiary);
  line-height: 1.2;
}

@keyframes float {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

/* ── Section Pourquoi INTELLIA237 (4 Axes) ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.feature-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-brand-indigo), var(--color-brand-purple));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-brand-lavender);
  color: var(--color-brand-indigo);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.feature-icon-box svg {
  width: 26px;
  height: 26px;
}

.feature-title {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-ink-primary);
  margin-bottom: var(--space-xs);
}

.feature-desc {
  font-size: 0.9375rem;
  color: var(--color-ink-secondary);
  line-height: 1.55;
}

/* ── Section Kira & Léo ── */
.companions-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-top: var(--space-xl);
}

.companion-card {
  background: var(--color-surface-white);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

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

.companion-card-kira {
  border-top: 4px solid var(--color-kira-primary);
}

.companion-card-leo {
  border-top: 4px solid var(--color-leo-primary);
}

.companion-visual {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  height: 380px;
  position: relative;
}

.companion-full-img {
  max-height: 380px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-smooth);
}

.companion-card:hover .companion-full-img {
  transform: scale(1.03);
}

.companion-details {
  display: flex;
  flex-direction: column;
}

.companion-signature {
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.companion-signature-kira {
  color: var(--color-kira-primary);
}

.companion-signature-leo {
  color: var(--color-leo-primary);
}

.companion-name {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.companion-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--color-ink-primary);
  margin-bottom: var(--space-md);
  line-height: 1.4;
}

.companion-bio {
  font-size: 0.9375rem;
  color: var(--color-ink-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.companion-traits {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.trait-pill {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: var(--color-surface-muted);
  color: var(--color-ink-primary);
  border: 1px solid var(--color-border-subtle);
}

/* ── Section Compagnon d'étude (Dialogue Réel) ── */
.chat-showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.chat-device-mockup {
  background: #FFFFFF;
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.chat-device-header {
  background: #FAF8F5;
  border-bottom: 1px solid var(--color-border-subtle);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-device-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.chat-device-status {
  display: flex;
  flex-direction: column;
}

.chat-device-tutor {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-ink-primary);
}

.chat-device-indicator {
  font-size: 0.6875rem;
  color: var(--color-success);
  display: flex;
  align-items: center;
  gap: 4px;
}

.chat-device-indicator::before {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-success);
}

.chat-stream-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: #FCFCFF;
  min-height: 320px;
}

.chat-bubble {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: var(--radius-lg);
  font-size: 0.9375rem;
  line-height: 1.5;
}

.chat-bubble-user {
  align-self: flex-end;
  background: var(--color-brand-indigo);
  color: #FFFFFF;
  border-bottom-right-radius: 4px;
}

.chat-bubble-tutor {
  align-self: flex-start;
  background: #FFFFFF;
  color: var(--color-ink-primary);
  border: 1px solid var(--color-border-subtle);
  border-bottom-left-radius: 4px;
  box-shadow: var(--shadow-sm);
}

.chat-bubble-tutor strong {
  color: var(--color-brand-indigo);
}

.chat-real-capabilities {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.capability-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.capability-icon {
  width: 22px;
  height: 22px;
  color: var(--color-brand-indigo);
  flex-shrink: 0;
  margin-top: 2px;
}

.capability-text {
  font-size: 0.9375rem;
  color: var(--color-ink-secondary);
}

/* ── Section FLOW ── */
.flow-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.flow-card {
  background: var(--color-surface-white);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal);
}

.flow-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.flow-card-tag {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--color-brand-lavender);
  color: var(--color-brand-indigo);
  align-self: flex-start;
  margin-bottom: var(--space-md);
}

.flow-card-question {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-ink-primary);
  margin-bottom: var(--space-sm);
}

.flow-card-preview {
  background: var(--color-surface-muted);
  border-radius: var(--radius-md);
  padding: 14px;
  font-size: 0.875rem;
  color: var(--color-ink-secondary);
  margin-top: auto;
  border-left: 3px solid var(--color-brand-indigo);
}

/* ── Section Quiz ── */
.quiz-modes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-top: var(--space-xl);
}

.quiz-mode-box {
  background: var(--color-surface-white);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  position: relative;
}

.quiz-mode-badge {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-brand-indigo);
  margin-bottom: var(--space-xs);
}

.quiz-mode-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.quiz-mode-desc {
  font-size: 0.9375rem;
  color: var(--color-ink-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

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

.quiz-mode-list-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-ink-primary);
}

.quiz-mode-list-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-brand-indigo);
  flex-shrink: 0;
}

/* ── Section Parents & Établissements ── */
.two-col-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.info-card-bordered {
  background: var(--color-surface-white);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
}

/* ── Section Google Play Final CTA ── */
.cta-final-section {
  background: linear-gradient(135deg, #151324 0%, #201D38 100%);
  color: #FFFFFF;
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
  position: relative;
  overflow: hidden;
}

.cta-final-content {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.cta-final-title {
  color: #FFFFFF;
  font-size: clamp(2.25rem, 3.8vw, 3.25rem);
  margin-bottom: var(--space-md);
}

.cta-final-desc {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.125rem;
  line-height: 1.6;
  margin-bottom: var(--space-2xl);
}

.cta-final-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.cta-final-note {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ── Footer Universel ── */
.site-footer {
  background: #0E0C1A;
  color: #FFFFFF;
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-brand-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.footer-brand-name {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #FFFFFF;
}

.footer-brand-desc {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.6;
  max-width: 320px;
}

.footer-col-title {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--space-md);
}

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

.footer-link {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom-info {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ── Responsive Media Queries ── */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content {
    align-items: center;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-guarantee {
    justify-content: center;
  }
  .hero-visual-wrapper {
    margin-top: var(--space-xl);
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .companions-container {
    grid-template-columns: 1fr;
  }
  .companion-card {
    grid-template-columns: 1fr 1.2fr;
  }
  .flow-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .two-col-grid {
    grid-template-columns: 1fr;
  }
  .chat-showcase-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .site-header {
    height: 68px;
  }
  .main-nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .companion-card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .companion-visual {
    height: 280px;
  }
  .companion-full-img {
    max-height: 280px;
  }
  .companion-traits {
    justify-content: center;
  }
  .flow-cards-grid {
    grid-template-columns: 1fr;
  }
  .quiz-modes-grid {
    grid-template-columns: 1fr;
  }
  .floating-badge {
    position: static;
    margin-top: 10px;
    animation: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }
  .hero-poster-frame {
    border-width: 2px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .btn {
    width: 100%;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
}