/**
 * ============================================
 * HERACLES AI - Styles Responsives V2
 * ============================================
 * 
 * Approche Mobile First
 * 
 * Breakpoints :
 * - Base : 0 - 575px (mobile)
 * - sm : 576px+ (phones paysage)
 * - md : 768px+ (tablettes)
 * - lg : 992px+ (desktops)
 * - xl : 1200px+ (large desktops)
 * - xxl : 1400px+ (extra large)
 * 
 * Sections V2 : 80px desktop → 56px mobile
 */

/* ============================================
   BASE MOBILE (0 - 575px)
   ============================================ */

/* Navigation mobile par défaut */
.nav__toggle {
  display: flex;
}

.nav__menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-dark);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-6);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: calc(var(--z-header) + 5);
}

.nav__menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav__menu .nav__link {
  font-size: var(--font-size-2xl);
  color: var(--color-white);
}

/* Dropdowns en mobile */
.nav__item--dropdown {
  width: 100%;
  flex-direction: column;
}

.nav__dropdown-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  cursor: pointer;
}

/* Masquer la flèche sur mobile, on utilise celle du style.css */
.nav__dropdown-toggle::after {
  font-size: 12px;
  margin-left: var(--spacing-2);
}

.nav__dropdown {
  position: static;
  transform: none !important;
  left: auto;
  min-width: auto;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.1);
  box-shadow: none;
  border: none;
  border-radius: 0;
  margin-top: var(--spacing-3);
  padding: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  visibility: visible;
  pointer-events: none;
  transition: max-height 0.3s ease, opacity 0.3s ease;
}

.nav__dropdown::before {
  display: none;
}

.nav__item--dropdown.is-open .nav__dropdown {
  max-height: 500px;
  opacity: 1;
  pointer-events: auto;
}

.nav__dropdown-link {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
  padding: var(--spacing-3) var(--spacing-4);
  text-align: center;
}

.nav__dropdown-link:hover {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
}

.nav__cta {
  position: fixed;
  bottom: var(--spacing-6);
  left: var(--spacing-4);
  right: var(--spacing-4);
  z-index: var(--z-header);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.nav__menu.is-open ~ .nav__cta,
.nav__cta.is-visible {
  opacity: 1;
  visibility: visible;
}

/* Header mobile */
.header {
  background-color: transparent;
}

.header--scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Container mobile */
.container {
  padding: 0 var(--spacing-4);
}

/* Sections mobile V2 - 56px */
.section {
  padding: var(--spacing-14) 0;
}

.section--sm {
  padding: var(--spacing-10) 0;
}

.section--lg {
  padding: var(--spacing-16) 0;
}

.section__title {
  font-size: var(--font-size-2xl);
}

.section__subtitle {
  font-size: var(--font-size-base);
}

/* Hero V2 mobile */
.hero-v2 {
  padding: 100px 0 var(--spacing-12);
}

.hero-v2__grid {
  grid-template-columns: 1fr;
  gap: var(--spacing-8);
}

.hero-v2__title {
  font-size: var(--font-size-3xl);
}

.hero-v2__subtitle {
  font-size: var(--font-size-lg);
}

.hero-v2__features li {
  font-size: var(--font-size-base);
}

.hero-v2__actions {
  flex-direction: column;
  align-items: stretch;
}

.hero-v2__actions .btn {
  width: 100%;
  justify-content: center;
}

.hero-v2__card-wrapper {
  order: 2;
}

.card-chatheracles {
  padding: var(--spacing-6);
  max-width: 100%;
}

/* Proof Strip mobile */
.proof-strip {
  padding: var(--spacing-6) 0;
}

.proof-strip__grid {
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-4);
}

.proof-item__value {
  font-size: var(--font-size-2xl);
}

.proof-item__label {
  font-size: var(--font-size-xs);
}

/* Solutions grid mobile */
.solutions-grid {
  grid-template-columns: 1fr;
  gap: var(--spacing-4);
}

.solution-card {
  padding: var(--spacing-5);
}

/* Usecase grid mobile */
.usecase-grid {
  grid-template-columns: 1fr;
  gap: var(--spacing-4);
}

.usecase-card {
  padding: var(--spacing-5);
}

/* Packs grid mobile */
.packs-grid {
  grid-template-columns: 1fr;
  gap: var(--spacing-6);
}

.pack-card {
  padding: var(--spacing-6);
}

.pack-card__amount {
  font-size: var(--font-size-3xl);
}

/* Method timeline mobile */
.method-timeline {
  grid-template-columns: 1fr;
  gap: var(--spacing-6);
}

.method-step::after {
  display: none;
}

.method-step__number {
  width: 40px;
  height: 40px;
  font-size: var(--font-size-lg);
}

/* CTA Final mobile */
.cta-final {
  padding: var(--spacing-12) 0;
}

.cta-final__card {
  padding: var(--spacing-8);
}

.cta-final__title {
  font-size: var(--font-size-2xl);
}

.cta-final__text {
  font-size: var(--font-size-base);
}

.cta-final__actions {
  flex-direction: column;
  gap: var(--spacing-3);
}

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

/* Hero legacy mobile */
.hero {
  padding: var(--spacing-16) 0;
  padding-top: calc(var(--spacing-16) + 80px);
}

.hero__title {
  font-size: var(--font-size-3xl);
}

.hero__subtitle {
  font-size: var(--font-size-base);
}

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

.hero__actions .btn {
  width: 100%;
  max-width: 300px;
}

.hero--page {
  padding: var(--spacing-12) 0;
  padding-top: calc(var(--spacing-12) + 80px);
}

.hero--page .hero__title {
  font-size: var(--font-size-2xl);
}

/* Grille mobile - 1 colonne */
.grid--2,
.grid--3,
.grid--4 {
  grid-template-columns: 1fr;
}

/* Footer mobile */
.footer__grid {
  grid-template-columns: 1fr;
  gap: var(--spacing-8);
}

.footer__brand {
  max-width: 100%;
  text-align: center;
}

.footer__logo {
  margin: 0 auto var(--spacing-4);
}

.footer__nav,
.footer__contact {
  text-align: center;
}

.footer__list {
  align-items: center;
}

.footer__bottom {
  flex-direction: column;
  gap: var(--spacing-4);
  text-align: center;
}

.footer__legal {
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-3);
}

/* Formulaire mobile */
.form__row {
  grid-template-columns: 1fr;
}

/* Stats mobile */
.stats {
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-4);
}

.stat__number {
  font-size: var(--font-size-3xl);
}

/* Timeline legacy mobile */
.timeline::before {
  left: 14px;
}

.timeline__item {
  padding-left: var(--spacing-12);
}

.timeline__marker {
  width: 30px;
  height: 30px;
  font-size: var(--font-size-sm);
}

/* Cartes mobiles */
.card {
  padding: var(--spacing-6);
}

.card__icon {
  width: 64px;
  height: 64px;
}

.card__icon svg {
  width: 36px;
  height: 36px;
}

/* Pricing card mobile */
.card__amount {
  font-size: var(--font-size-4xl);
}

/* CTA Section mobile */
.cta-section {
  padding: var(--spacing-12) 0;
}

.cta-section__title {
  font-size: var(--font-size-2xl);
}

.cta-section__actions {
  flex-direction: column;
  align-items: center;
}

.cta-section__actions .btn {
  width: 100%;
  max-width: 300px;
}

/* Headings mobile */
h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

/* ============================================
   SMALL DEVICES (576px+)
   Phones en mode paysage
   ============================================ */

@media (min-width: 576px) {
  /* Stats sur 2 colonnes toujours */
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Hero V2 actions en ligne */
  .hero-v2__actions {
    flex-direction: row;
    align-items: center;
  }

  .hero-v2__actions .btn {
    width: auto;
  }

  /* Hero actions en ligne */
  .hero__actions {
    flex-direction: row;
    justify-content: center;
  }

  .hero__actions .btn {
    width: auto;
    max-width: none;
  }

  /* CTA actions en ligne */
  .cta-section__actions {
    flex-direction: row;
    justify-content: center;
  }

  .cta-section__actions .btn {
    width: auto;
    max-width: none;
  }

  /* CTA Final actions en ligne */
  .cta-final__actions {
    flex-direction: row;
    justify-content: center;
  }

  .cta-final__actions .btn {
    width: auto;
  }

  /* Form row sur 2 colonnes */
  .form__row {
    grid-template-columns: 1fr 1fr;
  }

  /* Solutions grid 2 colonnes */
  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Usecase grid 2 colonnes */
  .usecase-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   MEDIUM DEVICES (768px+)
   Tablettes
   ============================================ */

@media (min-width: 768px) {
  /* Container tablet */
  .container {
    padding: 0 var(--spacing-6);
  }

  /* Sections tablet V2 - 64px */
  .section {
    padding: var(--spacing-16) 0;
  }

  .section--lg {
    padding: var(--spacing-20) 0;
  }

  .section__title {
    font-size: var(--font-size-3xl);
  }

  .section__subtitle {
    font-size: var(--font-size-lg);
  }

  /* Hero V2 tablet */
  .hero-v2 {
    padding: 120px 0 var(--spacing-16);
  }

  .hero-v2__title {
    font-size: var(--font-size-4xl);
  }

  /* Proof strip 4 colonnes */
  .proof-strip__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .proof-item__value {
    font-size: var(--font-size-3xl);
  }

  /* Method timeline 2 colonnes */
  .method-timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  .method-step::after {
    display: none;
  }

  /* Packs grid 2 colonnes */
  .packs-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Hero tablet */
  .hero {
    padding: var(--spacing-20) 0;
    padding-top: calc(var(--spacing-20) + 80px);
  }

  .hero__title {
    font-size: var(--font-size-4xl);
  }

  .hero__subtitle {
    font-size: var(--font-size-lg);
  }

  .hero--page {
    padding: var(--spacing-16) 0;
    padding-top: calc(var(--spacing-16) + 80px);
  }

  .hero--page .hero__title {
    font-size: var(--font-size-3xl);
  }

  /* Grille 2 colonnes */
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Footer tablet */
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-8);
  }

  .footer__brand,
  .footer__nav,
  .footer__contact {
    text-align: left;
  }

  .footer__logo {
    margin: 0 0 var(--spacing-4);
  }

  .footer__list {
    align-items: flex-start;
  }

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }

  /* Stats tablet */
  .stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .stat__number {
    font-size: var(--font-size-4xl);
  }

  /* Timeline tablet */
  .timeline::before {
    left: 20px;
  }

  .timeline__item {
    padding-left: var(--spacing-16);
  }

  .timeline__marker {
    width: 42px;
    height: 42px;
    font-size: var(--font-size-lg);
  }

  /* Cards tablet */
  .card {
    padding: var(--spacing-8);
  }

  .card__icon {
    width: 80px;
    height: 80px;
  }

  .card__icon svg {
    width: 48px;
    height: 48px;
  }

  /* Pricing card tablet */
  .card__amount {
    font-size: var(--font-size-5xl);
  }

  /* CTA Final tablet */
  .cta-final {
    padding: var(--spacing-16) 0;
  }

  .cta-final__card {
    padding: var(--spacing-10);
  }

  .cta-final__title {
    font-size: var(--font-size-3xl);
  }

  /* CTA Section tablet */
  .cta-section {
    padding: var(--spacing-16) 0;
  }

  .cta-section__title {
    font-size: var(--font-size-3xl);
  }

  /* Headings tablet */
  h1 {
    font-size: var(--font-size-4xl);
  }

  h2 {
    font-size: var(--font-size-3xl);
  }

  h3 {
    font-size: var(--font-size-2xl);
  }

  h4 {
    font-size: var(--font-size-xl);
  }
}

/* ============================================
   LARGE DEVICES (992px+)
   Desktops
   ============================================ */

@media (min-width: 992px) {
  /* Navigation desktop */
  .nav__toggle {
    display: none;
  }

  .nav__menu {
    position: static;
    background-color: transparent;
    flex-direction: row;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    gap: var(--spacing-4);
  }

  .nav__menu .nav__link {
    font-size: var(--font-size-base);
  }

  .nav__cta {
    position: static;
    opacity: 1;
    visibility: visible;
    margin-left: var(--spacing-4);
  }

  /* Dropdowns desktop - Override des styles mobile */
  .nav__item--dropdown {
    width: auto;
    flex-direction: row;
  }
  
  .nav__dropdown-toggle {
    justify-content: flex-start;
    width: auto;
  }

  .nav__dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 200px;
    width: auto;
    background-color: var(--color-white);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    margin-top: 0;
    padding: var(--spacing-2) 0;
    max-height: none;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    overflow: visible;
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
  }

  .nav__dropdown::before {
    display: block;
  }

  .nav__item--dropdown.is-open .nav__dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
  }

  .nav__dropdown-link {
    color: var(--color-text);
    font-size: var(--font-size-sm);
    padding: var(--spacing-3) var(--spacing-4);
    text-align: left;
  }

  .nav__dropdown-link:hover {
    background-color: var(--color-bg-light);
    color: var(--color-accent);
  }

  /* Hero V2 desktop - 2 colonnes */
  .hero-v2__grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
  }

  .hero-v2__card-wrapper {
    order: 0;
  }

  .hero-v2__title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
  }

  /* Solutions grid 4 colonnes */
  .solutions-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Usecase grid 3 colonnes */
  .usecase-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Packs grid 3 colonnes */
  .packs-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Method timeline 4 colonnes avec lignes */
  .method-timeline {
    grid-template-columns: repeat(4, 1fr);
  }

  .method-step:not(:last-child)::after {
    display: block;
  }

  /* Grille 3 colonnes */
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid--4 {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Footer desktop */
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .footer__brand {
    max-width: 300px;
  }

  /* Hero desktop */
  .hero__title {
    font-size: var(--font-size-5xl);
  }

  .hero__subtitle {
    font-size: var(--font-size-xl);
  }

  .hero--page .hero__title {
    font-size: var(--font-size-4xl);
  }

  /* Headings desktop */
  h1 {
    font-size: var(--font-size-5xl);
  }

  h2 {
    font-size: var(--font-size-4xl);
  }

  h3 {
    font-size: var(--font-size-3xl);
  }

  h4 {
    font-size: var(--font-size-2xl);
  }
}

/* ============================================
   EXTRA LARGE DEVICES (1200px+)
   Large desktops
   ============================================ */

@media (min-width: 1200px) {
  /* Container xl */
  .container {
    padding: 0 var(--spacing-8);
  }

  /* Sections xl V2 - 80px */
  .section {
    padding: var(--spacing-20) 0;
  }

  .section--lg {
    padding: var(--spacing-24) 0;
  }

  /* Hero V2 xl */
  .hero-v2 {
    padding: 140px 0 var(--spacing-20);
  }

  /* Hero xl */
  .hero {
    padding: var(--spacing-24) 0;
    padding-top: calc(var(--spacing-24) + 80px);
  }

  .hero--page {
    padding: var(--spacing-16) 0;
    padding-top: calc(var(--spacing-16) + 80px);
  }

  /* CTA Final xl */
  .cta-final {
    padding: var(--spacing-20) 0;
  }

  .cta-final__card {
    padding: var(--spacing-12);
  }

  /* Grille 4 colonnes */
  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Stats xl */
  .stat__number {
    font-size: var(--font-size-5xl);
  }
}

/* ============================================
   XXL DEVICES (1400px+)
   Extra large desktops
   ============================================ */

@media (min-width: 1400px) {
  /* Container xxl */
  .container--wide {
    max-width: 1280px;
  }

  /* Espacement supplémentaire si nécessaire */
  .section--lg {
    padding: var(--spacing-24) 0;
  }
}

/* ============================================
   UTILITAIRES RESPONSIVES
   ============================================ */

/* Affichage conditionnel */
.hidden-mobile {
  display: none;
}

.visible-mobile {
  display: block;
}

@media (min-width: 768px) {
  .hidden-mobile {
    display: block;
  }

  .visible-mobile {
    display: none;
  }

  .hidden-tablet {
    display: none;
  }

  .visible-tablet {
    display: block;
  }
}

@media (min-width: 992px) {
  .hidden-tablet {
    display: block;
  }

  .visible-tablet {
    display: none;
  }

  .hidden-desktop {
    display: none;
  }

  .visible-desktop {
    display: block;
  }
}

/* Texte centré sur mobile */
.text-center-mobile {
  text-align: center;
}

@media (min-width: 768px) {
  .text-center-mobile {
    text-align: left;
  }
}

/* Ordre sur mobile */
.order-first-mobile {
  order: -1;
}

@media (min-width: 768px) {
  .order-first-mobile {
    order: 0;
  }
}

/* Marges responsives */
@media (max-width: 767px) {
  .mb-mobile-4 {
    margin-bottom: var(--spacing-4);
  }

  .mb-mobile-6 {
    margin-bottom: var(--spacing-6);
  }

  .mb-mobile-8 {
    margin-bottom: var(--spacing-8);
  }
}

/* ============================================
   ANIMATIONS RÉDUITES
   Pour les utilisateurs qui préfèrent moins de mouvement
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .card:hover {
    transform: none;
  }

  .btn--primary:hover {
    transform: none;
  }

  .btn--text:hover .btn__icon {
    transform: none;
  }

  .usecase-card:hover,
  .solution-card:hover,
  .pack-card:hover {
    transform: none;
  }
}

/* ============================================
   MODE SOMBRE (optionnel)
   Préparé pour une future implémentation
   ============================================ */

@media (prefers-color-scheme: dark) {
  /* Désactivé par défaut - à activer si besoin
  :root {
    --color-text: #E0E0E0;
    --color-text-light: #A0A0A0;
    --color-background: #1A1A1A;
    --color-white: #121212;
    --color-border: #333333;
  }
  */
}

/* ============================================
   PRINT STYLES
   Pour l'impression
   ============================================ */

@media print {
  /* Masquer les éléments non imprimables */
  .header,
  .footer,
  .nav,
  .btn,
  .hero-v2__actions,
  .hero__actions,
  .cta-section,
  .cta-final,
  .proof-strip {
    display: none !important;
  }

  /* Reset des couleurs pour l'impression */
  body {
    background: white;
    color: black;
  }

  /* Hero V2 print */
  .hero-v2 {
    background: none !important;
    color: black;
    padding: 20px 0;
    margin-top: 0;
  }

  .hero-v2__title,
  .hero-v2__subtitle {
    color: black;
  }

  .hero-v2__features li {
    color: #333;
  }

  .hero-v2__grid {
    grid-template-columns: 1fr;
  }

  .card-chatheracles {
    display: none;
  }

  /* Éviter les coupures de page dans les éléments */
  .card,
  .testimonial,
  .timeline__item,
  .usecase-card,
  .solution-card,
  .pack-card,
  .method-step {
    break-inside: avoid;
  }

  /* Afficher les URLs des liens */
  a[href]::after {
    content: ' (' attr(href) ')';
    font-size: 0.8em;
    color: #666;
  }

  /* Pas d'ombres */
  * {
    box-shadow: none !important;
  }

  /* Sections print */
  .section {
    padding: 20px 0;
  }
}