/* ============================================
   CSS VARIABLES & RESET (US-1.1)
   ============================================ */
:root {
  --noir:          #0f0f0e;
  --noir-sec:      #1a1a18;
  --gris-fonce:    #7a7870;
  --gris-clair:    #a3a198;
  --blanc:         #ffffff;
  --cyan:          #00d4ff;
  --cyan-dark:     #0088a8;
  --cyan-trans:    #45cdff3d;

  --font-title: 'Instrument Serif', Georgia, serif;
  --font-body:  'DM Sans', system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--blanc);
  background-color: var(--noir-sec);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  padding-top: 68px;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

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

a {
  text-decoration: none;
  color: inherit;
  -webkit-tap-highlight-color: transparent;
}

ul, ol {
  list-style: none;
}

/* Cross-browser form reset */
input, select, textarea, button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

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

/* Safari fix for details/summary */
details > summary {
  list-style: none;
}
details > summary::-webkit-details-marker {
  display: none;
}

/* ============================================
   CONTAINER & UTILITY CLASSES (US-1.2)
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

/* --- Section labels --- */
.section-label {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 24px;
}

/* --- Utility classes --- */
.text-cyan { color: var(--cyan); }
.text-white { color: var(--blanc); }
.font-normal { font-style: normal; }
.text-small { font-size: 13px; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  border-radius: 25px;
  padding: 12px 28px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease, opacity 0.25s ease;
}

.btn-primary {
  background-color: var(--cyan);
  color: var(--noir);
  border-color: var(--cyan);
}

.btn-primary:hover {
  background-color: #33ddff;
  border-color: #33ddff;
}

.btn-secondary {
  background-color: transparent;
  color: var(--blanc);
  border-color: var(--gris-fonce);
}

.btn-secondary:hover {
  border-color: var(--blanc);
  background-color: rgba(255, 255, 255, 0.05);
}

.btn-secondary-cyan {
  background-color: transparent;
  color: var(--cyan);
  border-color: var(--cyan);
}

.btn-secondary-cyan:hover {
  background-color: var(--cyan-trans);
}

/* ============================================
   HEADER & NAVIGATION (US-2.1)
   ============================================ */

/* Hidden checkbox for hamburger (US-2.2) */
#nav-toggle {
  display: none;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--noir);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

/* Offset anchor targets for fixed header */
section[id] {
  scroll-margin-top: 68px;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  padding: 0 48px;
  max-width: 1440px;
  margin: 0 auto;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-title);
  font-style: normal;
  font-size: 21px;
  color: var(--blanc);
  white-space: nowrap;
  flex-shrink: 0;
}

.header__photo {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid rgba(0, 212, 255, 0.4);
  flex-shrink: 0;
}

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

.header__nav a {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--gris-clair);
  opacity: 0.75;
  transition: opacity 0.2s ease, color 0.2s ease;
  position: relative;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--cyan);
  transition: width 0.3s ease;
}

.header__nav a:hover {
  opacity: 1;
  color: var(--blanc);
}

.header__nav a:hover::after {
  width: 100%;
}

.header__cta .btn {
  font-size: 14px;
  padding: 10px 24px;
}

.header__cta .btn svg {
  width: 16px;
  height: 16px;
}

/* Hamburger icon — hidden on desktop */
.header__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  z-index: 1001;
}

.header__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #eef2f6;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ============================================
   MOBILE NAVIGATION (US-2.2)
   ============================================ */
.mobile-nav-overlay {
  display: none;
}

@media (max-width: 768px) {

  .header__inner {
    padding: 0 20px;
  }

  .header__nav,
  .header__cta {
    display: none;
  }

  .header__hamburger {
    display: flex;
  }

  /* Mobile nav overlay */
  .mobile-nav-overlay {
    display: block;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--noir-sec);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .mobile-nav-overlay__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 48px;
    gap: 8px;
  }

  .mobile-nav-link {
    font-family: var(--font-body);
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--blanc);
    padding: 16px 32px;
    opacity: 0.85;
    transition: opacity 0.2s ease, color 0.2s ease;
    display: block;
  }

  .mobile-nav-link:hover {
    opacity: 1;
    color: var(--cyan);
  }

  .mobile-nav-overlay .btn {
    margin-top: 24px;
  }

  /* Checkbox hack: when #nav-toggle is checked */
  #nav-toggle:checked ~ .mobile-nav-overlay {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  /* Animate hamburger into X */
  #nav-toggle:checked ~ .header .header__hamburger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  #nav-toggle:checked ~ .header .header__hamburger span:nth-child(2) {
    opacity: 0;
  }

  #nav-toggle:checked ~ .header .header__hamburger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* ============================================
   TABLET ADJUSTMENTS
   ============================================ */
@media (min-width: 769px) and (max-width: 1024px) {
  .header__inner {
    padding: 0 32px;
  }

  .header__nav {
    gap: 24px;
  }

  .header__nav a {
    font-size: 12px;
  }

  .container {
    padding: 0 32px;
  }
}

/* ============================================
   HERO SECTION (US-3.1)
   ============================================ */
.hero {
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0, 212, 255, 0.08) 0%, transparent 70%),
    radial-gradient(circle, rgba(255, 255, 255, 0.07) 1.2px, transparent 1.2px),
    var(--noir-sec);
  background-size: 100% 100%, 40px 40px, 100% 100%;
  padding: 100px 0 96px;
  text-align: center;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero .container {
  width: 100%;
}

.hero__tag {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 32px;
}

.hero__title {
  font-family: var(--font-title);
  font-size: 72px;
  font-weight: 400;
  line-height: 1.02;
  color: var(--blanc);
  max-width: 850px;
  margin: 0 auto 28px;
}

.hero__title em {
  font-style: italic;
}

.hero__title .highlight {
  font-style: normal;
  background: linear-gradient(90deg, var(--cyan), #45cdff, #00a8cc, var(--cyan));
  background-size: 300% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  -webkit-animation: shimmer 6s ease-in-out infinite;
  animation: shimmer 6s ease-in-out infinite;
}

@-webkit-keyframes shimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes shimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.45;
  color: var(--gris-clair);
  max-width: 860px;
  margin: 0 auto 40px;
}

.hero__buttons-wrap {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero__buttons {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 10px;
}

.hero__mention {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--gris-clair);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 5%;
  right: 5%;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--cyan) 30%, var(--cyan) 70%, transparent 100%);
  opacity: 0.6;
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.4), 0 0 30px rgba(0, 212, 255, 0.15);
}

.hero .btn-primary {
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3),
              0 0 60px rgba(0, 212, 255, 0.1);
  transition: box-shadow 0.3s ease, transform 0.3s ease, background-color 0.25s ease;
}

.hero .btn-primary:hover {
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.5),
              0 0 80px rgba(0, 212, 255, 0.2);
  transform: translateY(-2px);
}

/* ============================================
   PROBLEM SECTION (US-4.1)
   ============================================ */
.probleme {
  --cyan: var(--cyan-dark);
  background-color: #eef2f6;
  padding: 56px 0;
  color: var(--noir);
}

.probleme__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.probleme__title {
  font-family: var(--font-title);
  font-size: 44px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--noir);
  margin-bottom: 28px;
}

.probleme__title em {
  font-style: italic;
}

.probleme__text {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.45;
  color: var(--noir-sec);
  margin-bottom: 16px;
}

.probleme__text:last-of-type {
  margin-bottom: 0;
}

.probleme__cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.probleme__card {
  background-color: #ffffff;
  border: 1px solid #e0e4e8;
  border-radius: 14px;
  padding: 22px 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.probleme__card-icon-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-width: 36px;
  background-color: #45cdff;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 2px;
}

.probleme__card-icon-wrap svg {
  width: 18px;
  height: 18px;
}

.probleme__card-text {
  flex: 1;
}

.probleme__card-title {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--noir);
  margin-bottom: 6px;
}

.probleme__card-desc {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.55;
  color: var(--gris-fonce);
}

/* ============================================
   À PROPOS SECTION (US-5.1)
   ============================================ */
.a-propos {
  background-color: var(--noir-sec);
  padding: 56px 0;
}

.a-propos .section-label {
  margin-bottom: 32px;
}

.a-propos__grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 60px;
  align-items: center;
}

.a-propos__photo {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.a-propos__title {
  font-family: var(--font-title);
  font-size: 42px;
  font-style: italic;
  font-weight: 400;
  line-height: 1.2;
  color: var(--blanc);
  margin-bottom: 28px;
}

.a-propos__text {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--gris-clair);
  margin-bottom: 16px;
}

.a-propos__text:last-of-type {
  margin-bottom: 0;
}


/* ============================================
   MÉTHODE SECTION (US-6.1)
   ============================================ */
.methode {
  --cyan: var(--cyan-dark);
  background-color: #eef2f6;
  padding: 56px 0;
}

.methode__title {
  font-family: var(--font-title);
  font-size: 44px;
  font-style: italic;
  font-weight: 400;
  line-height: 1.2;
  color: var(--noir);
  margin-bottom: 24px;
}

.methode__title .highlight {
  color: var(--cyan);
}

.methode__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.methode__intro {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--noir-sec);
  margin-bottom: 16px;
}

.methode__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--noir);
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.methode__badge svg {
  width: 14px;
  height: 14px;
}

.methode__partner {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background-color: var(--blanc);
  border-left: 3px solid var(--cyan);
  border-radius: 8px;
  padding: 20px 24px;
  margin-top: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.methode__partner-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  color: var(--cyan);
}

.methode__partner-text {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  color: var(--noir-sec);
}

.methode__partner-text strong {
  color: var(--noir);
}

.methode__steps {
  margin-top: 0;
}

.methode__step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 16px 0;
  border-top: 1px solid #d0d0ca;
}

.methode__step:last-child {
  border-bottom: 1px solid #d0d0ca;
}

.methode__step-number {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  color: var(--cyan);
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  line-height: 32px;
  text-align: center;
  border: 2px solid var(--cyan);
  border-radius: 50%;
}

.methode__step-content {
  flex: 1;
}

.methode__step-title {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--noir);
  margin-bottom: 4px;
}

.methode__step-desc {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.4;
  color: var(--gris-fonce);
}

/* ============================================
   OFFRES SECTION (US-7.1)
   ============================================ */
.offres {
  background-color: var(--noir-sec);
  padding: 56px 0;
}

.offres__title {
  font-family: var(--font-title);
  font-size: 44px;
  font-style: italic;
  font-weight: 400;
  line-height: 1.2;
  color: var(--blanc);
  margin-bottom: 12px;
}

.offres__subtitle {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--gris-clair);
  margin-bottom: 48px;
}

.offres__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.offres__card {
  --cyan: var(--cyan-dark);
  background-color: #eef2f6;
  border-radius: 14px;
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
}

.offres__card-tag {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gris-fonce);
  margin-bottom: 4px;
}

.offres__card-duration {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
}

.offres__card-title {
  font-family: var(--font-title);
  font-size: 25px;
  font-weight: 400;
  color: var(--noir);
  margin-bottom: 8px;
}

.offres__card-desc {
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.45;
  color: var(--gris-fonce);
  margin-bottom: 16px;
}

.offres__card-price {
  font-family: var(--font-title);
  font-size: 30px;
  font-weight: 400;
  color: var(--noir);
  margin-bottom: 6px;
}

.offres__card-price span {
  font-size: 16px;
  font-weight: 400;
  color: var(--gris-fonce);
}

.offres__card-target {
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1.45;
  color: var(--cyan);
  margin-bottom: 14px;
}

.offres__card-features {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
  padding-top: 14px;
  border-top: 1px solid #d0d0ca;
  flex-grow: 1;
}

.offres__card-feature {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.45;
  color: var(--gris-fonce);
}

.offres__card-feature::before {
  content: '+';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  font-size: 14px;
  font-weight: 800;
  color: var(--cyan);
  border: 1.5px solid var(--cyan);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 1px;
}

.offres__card-feature--check::before {
  content: '✓';
  background-color: var(--cyan);
  color: var(--noir);
  border-color: var(--cyan);
  font-size: 11px;
  font-weight: 700;
}

.offres__card .btn {
  width: 100%;
  justify-content: center;
  font-size: 14px;
}

.offres__card--partner {
  border: 1px solid rgba(0, 212, 255, 0.25);
  position: relative;
  padding-top: 24px;
}

.offres__card-partner-badge {
  position: absolute;
  top: -12px;
  left: 22px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--cyan);
  background-color: #ffffff;
  border: 2px solid rgba(0, 212, 255, 0.4);
  padding: 4px 12px;
  border-radius: 12px;
}

.offres__card-partner-badge svg {
  width: 12px;
  height: 12px;
}

/* ============================================
   RESPONSIVE — TABLETTE (US-12.1)
   ============================================ */
@media (max-width: 1024px) {
  .hero {
    min-height: 75vh;
    padding: 80px 0 72px;
  }

  .hero__title {
    font-size: 44px;
  }

  .probleme__title {
    font-size: 36px;
  }

  .probleme__grid {
    gap: 40px;
  }

  .a-propos__title {
    font-size: 34px;
  }

  .a-propos__grid {
    gap: 40px;
  }

  .a-propos__photo {
    width: 240px;
    height: 240px;
  }

  .methode__title {
    font-size: 36px;
  }

  .methode__grid {
    gap: 40px;
  }

  .offres__title {
    font-size: 36px;
  }

  .offres__grid {
    gap: 16px;
  }

  .offres__card-desc {
    font-size: 12px;
  }

  .offres__card-target {
    font-size: 11px;
  }
}

/* ============================================
   RESPONSIVE — MOBILE (US-12.2)
   ============================================ */
@media (max-width: 768px) {
  /* --- Hero --- */
  .hero {
    padding: 48px 0 56px;
    min-height: 70vh;
  }

  .hero__tag {
    font-size: 13px;
    letter-spacing: 2px;
  }

  .hero__title {
    font-size: 38px;
  }

  .hero__subtitle {
    font-size: 15px;
  }

  .hero__buttons {
    flex-direction: column;
    gap: 12px;
  }

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

  /* --- Problème --- */
  .probleme {
    padding: 32px 0;
  }

  .probleme__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .probleme__title {
    font-size: 28px;
    margin-bottom: 16px;
  }

  .probleme__text {
    font-size: 15px;
    margin-bottom: 10px;
  }

  .probleme__card {
    padding: 18px 18px;
    gap: 14px;
  }

  .probleme__card-icon-wrap {
    width: 32px;
    height: 32px;
    min-width: 32px;
  }

  .probleme__card-icon-wrap svg {
    width: 16px;
    height: 16px;
  }

  /* --- À propos --- */
  .a-propos {
    padding: 40px 0;
  }

  .a-propos__grid {
    grid-template-columns: 1fr;
    gap: 32px;
    justify-items: center;
  }

  .a-propos__photo {
    width: 220px;
    height: 220px;
  }

  .a-propos__content {
    text-align: center;
  }

  .a-propos__title {
    font-size: 28px;
  }

  /* --- Méthode --- */
  .methode {
    padding: 40px 0;
  }

  .methode__title {
    font-size: 30px;
  }

  .methode__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .methode__partner {
    padding: 16px 18px;
    gap: 12px;
  }

  .methode__partner-icon {
    width: 32px;
    height: 32px;
  }

  .methode__step {
    gap: 16px;
    padding: 20px 0;
  }

  /* --- Offres --- */
  .offres {
    padding: 40px 0;
  }

  .offres__title {
    font-size: 30px;
  }

  .offres__grid {
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 480px;
  }

  .offres__card-desc {
    font-size: 13px;
  }

  .offres__card-target {
    font-size: 12px;
  }

}

/* ============================================
   RESPONSIVE — PETIT MOBILE (< 480px)
   ============================================ */
@media (max-width: 480px) {
  .header__photo {
    width: 34px;
    height: 34px;
  }

  .container {
    padding: 0 20px;
  }

  .hero__title {
    font-size: 32px;
  }

  .hero__tag {
    font-size: 12px;
  }

  .probleme__title {
    font-size: 24px;
    margin-bottom: 12px;
  }

  .probleme__card {
    padding: 10px 14px;
  }

  .a-propos__title {
    font-size: 24px;
  }

  .a-propos__photo {
    width: 180px;
    height: 180px;
  }

  .methode__title {
    font-size: 26px;
  }

  .methode__badge {
    font-size: 11px;
    padding: 5px 12px;
  }

  .methode__partner {
    flex-direction: column;
    padding: 14px 16px;
    gap: 10px;
  }

  .methode__partner-icon {
    width: 28px;
    height: 28px;
  }

  .methode__partner-text {
    font-size: 14px;
  }

  .offres__title {
    font-size: 26px;
  }

  .offres__card-title {
    font-size: 22px;
  }

  .offres__card-price {
    font-size: 26px;
  }
}

/* ============================================
   CROSS-BROWSER — TOUCH & ACCESSIBILITY
   ============================================ */

/* Touch target minimum size (Android/iOS) */
@media (pointer: coarse) {
  .btn {
    min-height: 44px;
    min-width: 44px;
  }

  .header__logo {
    min-height: 44px;
  }

  .header__nav a {
    padding: 8px 4px;
  }

  .contact__input,
  .contact__select,
  .contact__textarea {
    font-size: 16px; /* Prevents iOS zoom on focus */
    padding: 14px;
  }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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

  .hero__title .highlight {
    animation: none;
    background: none;
    -webkit-background-clip: unset;
    -webkit-text-fill-color: var(--cyan);
    background-clip: unset;
    color: var(--cyan);
  }

  .hero .btn-primary {
    box-shadow: none;
  }
}

/* High contrast mode support */
@media (forced-colors: active) {
  .btn {
    border: 2px solid currentColor;
  }

  .offres__card-feature::before,
  .offres__card-feature--check::before {
    forced-color-adjust: none;
  }

  /* Shimmer : revert to plain text in high contrast */
  .hero__title .highlight {
    background: none;
    -webkit-background-clip: unset;
    -webkit-text-fill-color: currentColor;
    background-clip: unset;
    color: LinkText;
  }

  /* Hero separator : use solid border instead of gradient */
  .hero::after {
    background: CanvasText;
    box-shadow: none;
  }

  /* Partner callout : ensure border is visible */
  .methode__partner {
    border: 1px solid CanvasText;
    box-shadow: none;
  }

  /* Partner card : ensure border is visible */
  .offres__card--partner {
    border: 2px solid LinkText;
  }

  .offres__card-partner-badge,
  .methode__badge {
    border: 1px solid currentColor;
  }

  /* Header photo : visible border */
  .header__photo {
    border: 1px solid CanvasText;
  }
}

/* Safari iOS fix — prevent text resize in landscape */
@media screen and (orientation: landscape) and (max-height: 500px) {
  .hero {
    min-height: auto;
    padding: 32px 0 40px;
  }

  .hero__title {
    font-size: 32px;
  }
}

/* ============================================
   BANNIÈRE CTA (US-8.1)
   ============================================ */
.cta-banner {
  background-color: var(--cyan);
  padding: 32px 0;
}

.cta-banner .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.cta-banner__content {
  flex: 1;
}

.cta-banner__text {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--noir);
  margin-bottom: 4px;
}

.cta-banner__title {
  font-family: var(--font-title);
  font-size: 32px;
  font-style: italic;
  font-weight: 400;
  color: var(--noir);
}

.cta-banner .btn {
  background-color: var(--noir);
  color: var(--blanc);
  border-color: var(--noir);
  flex-shrink: 0;
}

.cta-banner .btn:hover {
  background-color: var(--noir-sec);
  border-color: var(--noir-sec);
}

/* CTA Banner responsive overrides */
@media (max-width: 768px) {
  .cta-banner .container {
    flex-direction: column;
    text-align: center;
  }

  .cta-banner__title {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .cta-banner__title {
    font-size: 20px;
  }
}

/* ============================================
   CONTACT SECTION (US-9.1)
   ============================================ */
.contact-wrapper {
  --cyan: var(--cyan-dark);
  background-color: #eef2f6;
}

.contact {
  padding: 56px 0;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact__info {
  padding: 0;
}

.contact__title {
  font-family: var(--font-title);
  font-size: 38px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--noir);
  margin-bottom: 8px;
}

.contact__title em {
  font-style: italic;
  color: var(--cyan);
}

.contact__parlons {
  font-family: var(--font-title);
  font-size: 24px;
  font-style: italic;
  color: var(--noir);
  margin-bottom: 32px;
}

.contact__reassurance {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact__reassurance-item {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  color: var(--gris-fonce);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.contact__reassurance-item::before {
  content: '→';
  color: var(--cyan);
  font-size: 18px;
  font-weight: 900;
  flex-shrink: 0;
  margin-top: 0;
}

.contact__reassurance-item strong {
  color: var(--noir);
}

.contact__form-wrapper {
  padding: 0;
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 480px;
}

.contact__field-label {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--noir);
  margin-bottom: 4px;
  display: block;
}

.contact__field-label span {
  color: var(--cyan);
}

.contact__input,
.contact__select,
.contact__textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--noir);
  background-color: var(--blanc);
  border: 1px solid #d0d0ca;
  border-radius: 8px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.2s ease, outline-color 0.2s ease;
}

/* Fallback :focus pour tous les navigateurs (dont Safari < 15.4) */
.contact__input:focus,
.contact__select:focus,
.contact__textarea:focus {
  border-color: var(--cyan);
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* Navigateurs modernes : outline uniquement au clavier */
.contact__input:focus:not(:focus-visible),
.contact__select:focus:not(:focus-visible),
.contact__textarea:focus:not(:focus-visible) {
  outline: none;
}

.contact__input::placeholder,
.contact__textarea::placeholder {
  color: var(--gris-clair);
}

.contact__select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237a7870' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.contact__textarea {
  resize: vertical;
  min-height: 100px;
}

.contact__form .btn {
  align-self: flex-end;
}

.contact__form button.btn-primary {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-color: #00d4ff;
  color: var(--noir);
  border-color: #00d4ff;
}

.contact__form button.btn-primary:hover {
  background-color: #33ddff;
  border-color: #33ddff;
}

/* Contact responsive overrides */
@media (max-width: 1024px) {
  .contact {
    padding: 44px 0;
  }

  .contact__grid {
    gap: 40px;
  }

  .contact__title {
    font-size: 32px;
  }
}

@media (max-width: 768px) {
  .contact {
    padding: 36px 0;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .contact__title {
    font-size: 28px;
  }

  .contact__form {
    max-width: 100%;
  }

  .contact__form .btn {
    align-self: stretch;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .contact__title {
    font-size: 24px;
  }

  .contact__parlons {
    font-size: 20px;
  }
}

/* ============================================
   FAQ SECTION (US-10.1)
   ============================================ */
.faq {
  background-color: var(--noir-sec);
  padding: 56px 0;
}

.faq__title {
  font-family: var(--font-title);
  font-size: 44px;
  font-style: italic;
  font-weight: 400;
  line-height: 1.2;
  color: var(--blanc);
  margin-bottom: 40px;
}

.faq__accordion {
  max-width: 900px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq__item {
  background-color: #eef2f6;
  border-radius: 8px;
  overflow: hidden;
}

.faq__item summary {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 24px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--noir);
  cursor: pointer;
  list-style: none;
}

.faq__item summary::-webkit-details-marker {
  display: none;
}

.faq__item summary::before {
  content: '+';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  font-size: 16px;
  font-weight: 700;
  color: var(--gris-fonce);
  border: 2px solid var(--gris-fonce);
  border-radius: 50%;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq__item[open] summary::before {
  content: '−';
  color: var(--cyan);
  border-color: var(--cyan);
}

.faq__item-answer {
  padding: 0 24px 20px 62px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--gris-fonce);
}

/* ============================================
   FOOTER (US-11.1)
   ============================================ */
.footer {
  background-color: var(--noir);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 48px;
}

.footer__logo {
  font-family: var(--font-title);
  font-size: 16px;
  color: var(--gris-clair);
}

.footer__location {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--gris-clair);
}

.footer__updated {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--gris-clair);
}

.footer__copy {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--gris-clair);
}

/* FAQ & Footer responsive overrides */
@media (max-width: 1024px) {
  .faq__title {
    font-size: 36px;
  }
}

@media (max-width: 768px) {
  .faq {
    padding: 40px 0;
  }

  .faq__title {
    font-size: 30px;
  }

  .faq__item summary {
    padding: 14px 18px;
    font-size: 14px;
    gap: 12px;
  }

  .faq__item-answer {
    padding: 0 18px 16px 52px;
    font-size: 13px;
  }

  .footer__inner {
    padding: 20px 20px;
    flex-direction: column;
    height: auto;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .faq__title {
    font-size: 26px;
  }

  .faq__item summary {
    font-size: 13px;
    padding: 12px 14px;
    gap: 10px;
  }

  .faq__item-answer {
    padding: 0 14px 14px 44px;
    font-size: 12px;
  }

  .faq__item summary::before {
    width: 18px;
    height: 18px;
    font-size: 13px;
  }
}

/* ============================================
   COOKIE BANNER (RGPD)
   ============================================ */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  background: var(--noir);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: center;
}

.cookie-banner.hidden {
  display: none;
}

.cookie-banner__content {
  max-width: 900px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.cookie-banner__text {
  color: var(--gris-clair);
  font-family: var(--font-body);
  font-size: 0.875rem;
  margin: 0;
  flex: 1;
  min-width: 280px;
}

.cookie-banner__actions {
  display: flex;
  gap: 0.75rem;
}

.cookie-banner__btn {
  font-size: 0.875rem;
  padding: 0.5rem 1.25rem;
}