/* ============================================================
   SITERAES — STYLE.CSS
   Refonte sobre & professionnelle — Freelance Développeuse Web
   Palette : blanc cassé + bleu nuit #1A365D + gris ardoise #4A5568
   Police  : Inter (body) + Montserrat (headings) via Google Fonts
   ============================================================ */

/* ============================
   1. VARIABLES CSS (Design Tokens)
   ============================ */
:root {
  /* --- Couleurs principales --- */
  --color-primary:       #1A365D;   /* Bleu nuit profond — accent principal */
  --color-primary-dark:  #122540;   /* Variante plus foncée pour hover */
  --color-primary-light: #2B5282;   /* Variante plus claire pour focus */
  --color-primary-bg:    #EBF0F8;   /* Fond teinté très léger sur cartes */

  /* --- Couleur de fond --- */
  --color-bg:            #F8F9FA;   /* Fond général — blanc cassé */
  --color-bg-alt:        #FFFFFF;   /* Sections alternées — blanc pur */
  --color-bg-dark:       #111827;   /* Footer sombre */

  /* --- Texte --- */
  --color-text:          #1E2A3A;   /* Texte principal — quasi-noir */
  --color-text-secondary:#4A5568;   /* Texte secondaire — gris ardoise */
  --color-text-light:    #8A96A8;   /* Texte désactivé / placeholder */

  /* --- Bordures --- */
  --color-border:        #DEE3EB;   /* Bordure standard */
  --color-border-light:  #EAEFF6;   /* Bordure très légère */

  /* --- États --- */
  --color-success:       #2F855A;   /* Vert succès */
  --color-success-bg:    #F0FFF4;

  /* --- Typographie --- */
  --font-heading:        'Montserrat', sans-serif;
  --font-body:           'Inter', sans-serif;

  /* --- Dimensions --- */
  --container-max:       1160px;
  --header-height:       70px;
  --section-padding:     96px;
  --radius-sm:           6px;
  --radius-md:           10px;
  --radius-lg:           14px;
  --radius-xl:           20px;
  --radius-full:         9999px;

  /* --- Ombres légères et sobres --- */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:  0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.05);
  --shadow-lg:  0 10px 24px -4px rgba(0,0,0,0.09), 0 4px 8px -2px rgba(0,0,0,0.05);
  --shadow-xl:  0 20px 40px -8px rgba(0,0,0,0.10), 0 8px 16px -4px rgba(0,0,0,0.05);
  --shadow-card: 0 4px 6px -1px rgba(0,0,0,0.07);

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

/* ============================
   2. RESET & BASE
   ============================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ============================
   3. UTILITAIRES
   ============================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 28px;
}

/* Lien en texte courant */
.link {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.link:hover {
  color: var(--color-primary-dark);
}

/* Champ obligatoire */
.required {
  color: #C53030;
}

/* Label optionnel */
.form-optional {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--color-text-light);
  margin-left: 4px;
}

/* ============================
   4. EN-TÊTES DE SECTION
   ============================ */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

/* Étiquette au-dessus du titre (type "Services") */
.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

/* Titre H2 de section */
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3.5vw, 2.25rem);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

/* Sous-titre descriptif */
.section-subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============================
   5. BOUTONS
   ============================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

/* Bouton principal — bleu nuit */
.btn--accent {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn--accent:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  box-shadow: 0 6px 16px rgba(26, 54, 93, 0.28);
  transform: translateY(-2px);
}

/* Bouton contour */
.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(26, 54, 93, 0.20);
  transform: translateY(-2px);
}

/* Modificateurs taille */
.btn--lg {
  padding: 15px 34px;
  font-size: 0.9375rem;
}

.btn--full {
  width: 100%;
}

/* État focus accessible */
.btn:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 3px;
}

/* ============================
   6. HEADER & NAVIGATION
   ============================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(248, 249, 250, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  height: var(--header-height);
}

/* Ombre légère au scroll */
.header--scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 1001;
  flex-shrink: 0;
}

.logo-icon {
  height: 44px;
  width: auto;
  border-radius: var(--radius-sm);
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

/* Navigation desktop */
.header__nav {
  display: flex;
  align-items: center;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav__link {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding: 4px 0;
}

/* Soulignement animé au survol */
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

/* Bouton CTA dans le header */
.header__cta {
  font-size: 0.875rem;
  padding: 10px 22px;
  flex-shrink: 0;
}

/* Hamburger (mobile) */
.header__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 26px;
  height: 26px;
  justify-content: center;
  z-index: 1001;
}

.hamburger__line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

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

.header__hamburger[aria-expanded="true"] .hamburger__line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

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

/* ============================
   7. SECTION HÉRO
   ============================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 80px;
  overflow: hidden;
  background: var(--color-bg-alt); /* fond blanc pur */
}

/* Ligne décorative discrète en bas du hero */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-border-light);
}

/* Grille hero : texte à gauche, photo à droite */
.hero__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 72px;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Colonne texte */
.hero__content {
  max-width: 580px;
}

/* Étiquette au-dessus du H1 */
.hero__pretitle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 22px;
}

/* H1 — imposant et épuré */
.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 4.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 22px;
  color: var(--color-text);
  letter-spacing: -0.03em;
}

/* Mot clé en couleur primaire */
.hero__title-accent {
  color: var(--color-primary);
}

/* Sous-titre court */
.hero__subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 36px;
}

/* Boutons CTA */
.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

/* Barre de réassurance (✓ Maquette sous 24h…) */
.hero__reassurance {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 16px;
}

.hero__reassurance-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.hero__reassurance-sep {
  color: var(--color-border);
  font-size: 1rem;
}

/* ---- Placeholder photo professionnel ---- */
.hero__photo-wrapper {
  flex-shrink: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Cadre rectangulaire arrondi pour la photo */
.hero__photo-placeholder {
  width: 310px;
  height: 380px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-bg);
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  position: relative;
  overflow: hidden;
  /* Légère texture subtile */
  background-image:
    linear-gradient(135deg, #EBF0F8 0%, #F5F8FF 50%, #EBF0F8 100%);
  transition: box-shadow var(--transition-base);
}

.hero__photo-placeholder:hover {
  box-shadow: var(--shadow-xl);
}

/* Cercle icône utilisateur */
.hero__photo-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(26, 54, 93, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(26, 54, 93, 0.12);
}

/* Texte indicatif sous l'icône */
.hero__photo-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  opacity: 0.6;
}

/* Trait décoratif en bas de la carte photo */
.hero__photo-placeholder::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-primary);
  opacity: 0.35;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ============================
   8. SECTION SERVICES
   ============================ */
.services {
  padding: var(--section-padding) 0;
  background: var(--color-bg);
}

/* Grille de 4 cartes */
.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* Carte service */
.service-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 26px 32px;
  text-align: left;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

/* Trait coloré discret en haut de la carte */
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-card:hover::before {
  opacity: 0.6;
}

/* Icône de la carte */
.service-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-primary-bg);
  margin-bottom: 22px;
}

/* Titre de la carte */
.service-card__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
  line-height: 1.3;
}

/* Description de la carte */
.service-card__text {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================
   9. SECTION RÉALISATIONS
   ============================ */
.realisations {
  padding: var(--section-padding) 0;
  background: var(--color-bg-alt);
}

/* Grille 3 colonnes */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  margin-bottom: 56px;
}

/* Carte projet */
.project-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border-light);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* Conteneur image */
.project-card__image-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--color-primary-bg);
}

.project-card__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-card__image-wrap img {
  transform: scale(1.04);
}

/* Placeholder quand pas d'image */
.project-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  opacity: 0.7;
}

/* Contenu texte de la carte */
.project-card__content {
  padding: 22px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

/* Étiquette type (Restaurant, Artisan…) */
.project-card__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.project-card__name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}

.project-card__result {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  flex: 1;
}

.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 6px;
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.project-card__link:hover {
  color: var(--color-primary-dark);
  gap: 10px;
}

.project-card__link--placeholder {
  color: var(--color-text-light);
  cursor: default;
  pointer-events: none;
}

/* CTA en bas de section réalisations */
.realisations__cta {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.realisations__cta-text {
  font-size: 1rem;
  color: var(--color-text-secondary);
}

/* ============================
   10. SECTION TARIFS
   ============================ */
.pricing {
  padding: var(--section-padding) 0;
  background: var(--color-bg);
}

.pricing__main {
  max-width: 860px;
  margin: 0 auto;
}

/* Carte tarif principale */
.pricing-card--featured {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: 48px 44px;
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

/* Trait de couleur discret en haut */
.pricing-card--featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
}

.pricing-card__header {
  text-align: center;
  margin-bottom: 36px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border-light);
}

.pricing-card__title {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--color-text);
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  margin-bottom: 10px;
}

.price-amount {
  font-family: var(--font-heading);
  font-size: 3.25rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.price-currency {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

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

/* Corps à 2 colonnes */
.pricing-card__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  text-align: left;
}

.pricing-card__subtitle {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--color-text);
}

/* Liste inclus */
.pricing-card__features {
  margin-bottom: 0;
}

.pricing-card__features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  font-size: 0.9rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-light);
}

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

.pricing-card__features svg {
  flex-shrink: 0;
}

/* Options supplémentaires */
.pricing-card__addons {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.addons-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--color-text);
}

.addons-list {
  list-style: none;
  padding: 0;
  margin: 0 0 18px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.addon-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  transition: border-color var(--transition-fast);
}

.addon-item:hover {
  border-color: var(--color-primary);
}

.addon-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.addon-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  flex: 1;
}

.addon-checkbox {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.addon-name {
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--color-text);
}

.addon-toggle {
  background: transparent;
  border: none;
  padding: 4px;
  cursor: pointer;
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.addon-toggle:hover {
  color: var(--color-primary);
}

.addon-toggle[aria-expanded="true"] {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.addon-desc {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--color-border-light);
  font-size: 0.825rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Total estimé */
.addons-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  font-weight: 500;
  padding: 14px 16px;
  background: var(--color-primary-bg);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  margin-bottom: 16px;
}

.addons-total strong {
  font-size: 1.375rem;
  font-weight: 800;
}

/* Réassurance paiement */
.pricing-card__reassurance {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--color-primary-bg);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 0.8125rem;
  color: var(--color-primary);
  line-height: 1.5;
}

.pricing-card__reassurance svg {
  flex-shrink: 0;
  margin-top: 1px;
}

/* Pied de carte tarif */
.pricing-card__footer {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Séparateur avec style dans le formulaire devis */
#devis-form-wrapper {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.5s ease, opacity 0.4s ease;
  opacity: 0;
}

/* Résumé devis auto-généré */
#devis-summary {
  background: var(--color-primary-bg);
  border: 1px solid rgba(26, 54, 93, 0.15);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-bottom: 20px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Contrôle +/- pages supplémentaires */
.number-input-group {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
}

.btn-number-minus,
.btn-number-plus {
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

.addon-number {
  width: 32px;
  height: 28px;
  border: none;
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  text-align: center;
  font-family: inherit;
  font-size: 14px;
  -moz-appearance: textfield;
}

/* ============================
   11. SECTION À PROPOS
   ============================ */
.about {
  padding: var(--section-padding) 0;
  background: var(--color-bg-alt);
}

/* Texte introductif centré */
.about__intro {
  max-width: 720px;
  margin: 0 auto 64px;
  text-align: center;
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.about__intro p + p {
  margin-top: 18px;
}

/* Grille des "pourquoi moi" — 3 colonnes */
.why-me__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  margin-bottom: 64px;
}

.why-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 26px;
  text-align: center;
  transition: all var(--transition-base);
}

.why-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.why-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: var(--color-primary-bg);
  margin-bottom: 18px;
}

.why-card__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}

.why-card__text {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* Processus en ligne */
.about__process {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  background: var(--color-primary-bg);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  border: 1px solid var(--color-border);
}

.about__process strong {
  color: var(--color-primary);
  font-weight: 600;
}

/* ============================
   12. SECTION CONTACT
   ============================ */
.contact {
  padding: var(--section-padding) 0;
  background: var(--color-bg);
}

/* Grille des cartes de contact */
.contact__info-only {
  max-width: 860px;
  margin: 0 auto;
}

.contact__cards-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 20px;
}

/* Carte info standalone */
.contact__info-card--standalone {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.contact__info-card--standalone:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.contact__info-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--color-primary-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact__info-card--standalone strong {
  display: block;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 3px;
  font-size: 0.875rem;
}

.contact__info-card--standalone span,
.contact__info-card--standalone a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* Carte Google Maps */
.contact__map {
  margin-top: 32px;
}

.contact__map iframe {
  border-radius: var(--radius-lg);
  display: block;
  width: 100%;
  height: 260px;
  border: 0;
  box-shadow: var(--shadow-sm);
}

/* ============================
   13. FORMULAIRES
   ============================ */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-alt);
  color: var(--color-text);
  transition: all var(--transition-fast);
  line-height: 1.5;
}

.form-input::placeholder {
  color: var(--color-text-light);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.10);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group--checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.form-checkbox {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
  cursor: pointer;
}

.form-label--checkbox {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 0;
  cursor: pointer;
}

/* Notification succès toast */
.form-success {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--color-success-bg);
  border: 1px solid rgba(47, 133, 90, 0.25);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  color: var(--color-text);
}

.form-success p {
  font-size: 0.9375rem;
  color: var(--color-text);
}

/* ============================
   14. FOOTER
   ============================ */
.footer {
  background: var(--color-bg-dark);
  color: #CBD5E0;
  padding: 60px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* Logo footer */
.footer .header__logo {
  margin-bottom: 14px;
}

.footer .logo-text {
  color: #fff;
}

.footer__slogan {
  font-size: 0.9rem;
  color: #718096;
  max-width: 260px;
  line-height: 1.7;
}

/* Titres colonnes */
.footer__title {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 18px;
}

/* Liens footer */
.footer__link {
  font-size: 0.9rem;
  color: #718096;
  transition: color var(--transition-fast);
  display: inline-block;
  padding: 3px 0;
}

.footer__link:hover {
  color: #fff;
}

.footer__links ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* Icônes réseaux sociaux */
.footer__social-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: #718096;
  border: 1px solid rgba(255, 255, 255, 0.07);
  transition: all var(--transition-base);
}

.footer__social-link:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* Barre du bas */
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
}

.footer__copyright {
  font-size: 0.8125rem;
  color: #4A5568;
}

.footer__legal {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8125rem;
}

.footer__legal span {
  color: #4A5568;
}

.footer__legal .footer__link {
  font-size: 0.8125rem;
}

/* ============================
   15. BOUTON RETOUR EN HAUT
   ============================ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  /* Décalé pour laisser la place au chatbot */
  right: 188px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(26, 54, 93, 0.30);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition-base);
  z-index: 900;
}

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

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
}

/* ============================
   16. CHATBOT FAQ FLOTTANT
   ============================ */

/* Bouton déclencheur */
.chatbot-trigger {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background: var(--color-primary);
  color: #ffffff;
  border: none;
  padding: 12px 22px;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 8px 20px rgba(26, 54, 93, 0.30);
  z-index: 950;
  transition: all var(--transition-base);
}

.chatbot-trigger:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(26, 54, 93, 0.40);
}

/* Fenêtre chatbot */
.faq__chatbot-container {
  position: fixed;
  bottom: 96px;
  right: 32px;
  width: 370px;
  max-width: calc(100vw - 64px);
  height: 510px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.95);
  transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base);
}

.faq__chatbot-container.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.faq__chatbot {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

/* En-tête chatbot */
.faq__chatbot-header {
  background: var(--color-primary);
  color: #ffffff;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.faq__chatbot-avatar {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
}

.faq__chatbot-status {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border: 2px solid var(--color-primary-dark);
  border-radius: var(--radius-full);
  position: absolute;
  bottom: 0;
  right: 0;
  animation: pulseStatus 2s infinite;
}

@keyframes pulseStatus {
  0%   { box-shadow: 0 0 0 0 rgba(47, 133, 90, 0.7); }
  70%  { box-shadow: 0 0 0 5px rgba(47, 133, 90, 0); }
  100% { box-shadow: 0 0 0 0 rgba(47, 133, 90, 0); }
}

.faq__chatbot-info {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.faq__chatbot-name {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  margin: 0;
  line-height: 1.2;
}

.faq__chatbot-subtitle {
  font-size: 0.75rem;
  opacity: 0.82;
  margin: 0;
}

.faq__chatbot-close-btn {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.75);
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.faq__chatbot-close-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}

/* Corps chatbot (messages) */
.faq__chatbot-body {
  flex: 1;
  padding: 18px;
  overflow-y: auto;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}

.faq__chatbot-body::-webkit-scrollbar { width: 5px; }
.faq__chatbot-body::-webkit-scrollbar-track { background: transparent; }
.faq__chatbot-body::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: var(--radius-full); }
.faq__chatbot-body::-webkit-scrollbar-thumb:hover { background: var(--color-text-light); }

/* Messages */
.faq__chatbot-message {
  display: flex;
  max-width: 85%;
  animation: slideUpMessage 0.3s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes slideUpMessage {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.faq__chatbot-message--bot  { align-self: flex-start; }
.faq__chatbot-message--user { align-self: flex-end; }

.faq__chatbot-bubble {
  padding: 11px 15px;
  border-radius: 16px;
  font-size: 0.875rem;
  line-height: 1.5;
}

.faq__chatbot-message--bot .faq__chatbot-bubble {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border-bottom-left-radius: 4px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}

.faq__chatbot-message--user .faq__chatbot-bubble {
  background: var(--color-primary);
  color: #ffffff;
  border-bottom-right-radius: 4px;
}

.faq__chatbot-bubble ul {
  padding-left: 18px;
  margin-top: 6px;
  list-style-type: disc;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

/* Suggestions rapides */
.faq__chatbot-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px 18px;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border-light);
  max-height: 110px;
  overflow-y: auto;
}

.faq__chatbot-pill {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 5px 11px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.faq__chatbot-pill:hover {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

/* Zone de saisie */
.faq__chatbot-input-area {
  display: flex;
  align-items: center;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 10px 14px;
  gap: 10px;
}

.faq__chatbot-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 6px 4px;
  font-size: 0.875rem;
  color: var(--color-text);
  font-family: inherit;
}

.faq__chatbot-input::placeholder { color: var(--color-text-light); }
.faq__chatbot-input:focus { outline: none; }

.faq__chatbot-send-btn {
  background: var(--color-primary);
  color: #ffffff;
  border: none;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.faq__chatbot-send-btn:hover {
  background: var(--color-primary-dark);
  transform: scale(1.06);
}

.faq__chatbot-send-btn svg { width: 15px; height: 15px; margin-left: 2px; }

/* Animation de frappe */
.faq__chatbot-typing {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 18px;
  padding: 0 4px;
}

.faq__chatbot-typing span {
  display: inline-block;
  width: 5px;
  height: 5px;
  background: var(--color-text-light);
  border-radius: var(--radius-full);
  animation: typingAnimation 1.4s infinite both;
}

.faq__chatbot-typing span:nth-child(2) { animation-delay: 0.2s; }
.faq__chatbot-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingAnimation {
  0%   { transform: translateY(0);   opacity: 0.4; }
  20%  { transform: translateY(-4px); opacity: 1; }
  40%  { transform: translateY(0);   opacity: 0.4; }
  100% { transform: translateY(0);   opacity: 0.4; }
}

/* ============================
   17. ANIMATIONS AU SCROLL
   ============================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.animate-on-scroll[data-animation="fade-left"] {
  transform: translateX(30px);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* Délais progressifs pour les grilles */
.animate-on-scroll[data-delay="0"] { transition-delay: 0ms; }
.animate-on-scroll[data-delay="1"] { transition-delay: 80ms; }
.animate-on-scroll[data-delay="2"] { transition-delay: 160ms; }
.animate-on-scroll[data-delay="3"] { transition-delay: 240ms; }
.animate-on-scroll[data-delay="4"] { transition-delay: 320ms; }
.animate-on-scroll[data-delay="5"] { transition-delay: 400ms; }

/* Animation loader bouton */
.btn__loader svg {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ============================
   18. RESPONSIVE — TABLETTE (≤ 1024px)
   ============================ */
@media (max-width: 1024px) {
  :root {
    --section-padding: 72px;
  }

  /* Hero passe en colonne */
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero__content {
    max-width: 100%;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__reassurance {
    justify-content: center;
  }

  /* La photo passe au-dessus sur tablette */
  .hero__photo-wrapper {
    order: -1;
  }

  .hero__photo-placeholder {
    width: 240px;
    height: 300px;
  }

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

  /* Pourquoi moi : 3 colonnes maintenu */
  .why-me__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  /* Footer */
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

/* ============================
   19. RESPONSIVE — MOBILE (≤ 768px)
   ============================ */
@media (max-width: 768px) {
  :root {
    --section-padding: 56px;
    --header-height: 62px;
  }

  .container {
    padding: 0 18px;
  }

  /* Navigation mobile */
  .header__cta {
    display: none;
  }

  .header__hamburger {
    display: flex;
  }

  .header__nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(248, 249, 250, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 1000;
  }

  .header__nav.open {
    opacity: 1;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    gap: 28px;
    text-align: center;
  }

  .nav__link {
    font-size: 1.125rem;
    font-weight: 600;
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + 40px);
    padding-bottom: 56px;
  }

  .hero__title {
    font-size: 2rem;
  }

  .hero__photo-placeholder {
    width: 200px;
    height: 250px;
  }

  /* Services : 1 colonne */
  .services__grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  /* Grilles */
  .why-me__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .why-card {
    padding: 28px 22px;
  }

  .pricing-card--featured {
    padding: 32px 22px;
  }

  .pricing-card__body {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .pricing-card__addons {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border-light);
  }

  .price-amount {
    font-size: 2.75rem;
  }

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

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer__brand {
    grid-column: 1;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }

  .section-header {
    margin-bottom: 48px;
  }
}

/* ============================
   20. RESPONSIVE — PETIT MOBILE (≤ 480px)
   ============================ */
@media (max-width: 480px) {
  .hero__reassurance-sep {
    display: none;
  }

  .hero__reassurance {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

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

  .contact__cards-row {
    grid-template-columns: 1fr;
  }
}

/* ============================
   21. ACCESSIBILITÉ — RÉDUCTION DE MOUVEMENT
   ============================ */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  /* Les éléments animés sont immédiatement visibles */
  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }
}

/* ============================
   22. STYLES DE FOCUS (Accessibilité)
   ============================ */
:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 3px;
}

a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
  outline: none;
}

/* Lien d'évitement pour lecteurs d'écran */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 8px 16px;
  z-index: 10000;
  transition: top var(--transition-fast);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.skip-link:focus {
  top: 0;
}