/* ═══════════════════════════════════════
   NAISSENS COACHING — Dark Premium Theme
   Renaud Altmeyer · Alfortville 94
═══════════════════════════════════════ */

:root {
  --c-bg:        #0c1220;
  --c-bg2:       #111827;
  --c-bg3:       #1a2535;
  --c-card:      #131e2e;
  --c-text:      #ede8de;
  --c-muted:     #7a8ba8;
  --c-gold:      #c9a227;
  --c-gold-l:    #e8c55a;
  --c-gold-dim:  rgba(201,162,39,.15);
  --c-accent:    #2e9e8c;
  --c-white:     #ffffff;
  --c-border:    rgba(255,255,255,.07);
  --c-border-m:  rgba(255,255,255,.13);

  --ff-serif: 'Playfair Display', Georgia, serif;
  --ff-sans:  'Inter', system-ui, sans-serif;

  --radius:    12px;
  --radius-lg: 20px;
  --shadow:    0 4px 32px rgba(0,0,0,.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,.55);
  --glow-gold: 0 0 40px rgba(201,162,39,.18);

  --max-w: 1200px;
  --section-py: 6rem;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--ff-sans);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .8rem 1.85rem;
  border-radius: 50px;
  font-family: var(--ff-sans);
  font-weight: 600;
  font-size: .95rem;
  transition: all .25s ease;
  white-space: nowrap;
  letter-spacing: .01em;
}
.btn--primary {
  background: var(--c-gold);
  color: #0c1220;
}
.btn--primary:hover {
  background: var(--c-gold-l);
  transform: translateY(-2px);
  box-shadow: var(--glow-gold);
}
.btn--outline {
  border: 1.5px solid var(--c-gold);
  color: var(--c-gold);
  background: transparent;
}
.btn--outline:hover {
  background: var(--c-gold-dim);
  transform: translateY(-2px);
}
.btn--ghost {
  border: 1.5px solid var(--c-border-m);
  color: var(--c-text);
  background: transparent;
}
.btn--ghost:hover { border-color: var(--c-gold); color: var(--c-gold); }
.btn--nav { padding: .55rem 1.25rem; font-size: .875rem; }
.btn--sm { padding: .55rem 1.1rem; font-size: .85rem; }
.btn--lg { padding: 1rem 2.5rem; font-size: 1.05rem; }
.btn--full { width: 100%; }

/* ── Section titles ── */
.section { padding: var(--section-py) 0; }
.section__label {
  display: block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: .6rem;
}
.center { text-align: center; }
.section__title {
  font-family: var(--ff-serif);
  font-size: clamp(1.75rem, 3vw, 2.6rem);
  color: var(--c-text);
  line-height: 1.2;
  margin-bottom: 1rem;
}
.section__sub {
  color: var(--c-muted);
  max-width: 580px;
  margin: 0 auto 3rem;
  font-size: 1rem;
  line-height: 1.75;
}
.gold { color: var(--c-gold); }

/* ══════════════════════════════════════
   NAVIGATION
═══════════════════════════════════════ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(12,18,32,.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow .3s;
}
.header.scrolled { box-shadow: 0 2px 24px rgba(0,0,0,.5); }
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 2rem;
}
.nav__logo {
  font-family: var(--ff-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-text);
  white-space: nowrap;
}
.nav__logo span { color: var(--c-gold); }
.nav__links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.nav__links li a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--c-muted);
  transition: color .2s;
}
.nav__links li a:hover { color: var(--c-gold); }
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-text);
  transition: all .3s;
  border-radius: 2px;
}

/* ══════════════════════════════════════
   HERO
═══════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 70px;
  background: var(--c-bg);
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 70% at 65% 50%, rgba(46,158,140,.12) 0%, transparent 60%),
              radial-gradient(ellipse 50% 50% at 20% 80%, rgba(201,162,39,.08) 0%, transparent 50%);
}
.hero__grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero__content {
  position: relative;
  z-index: 1;
  padding: 4rem 1.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}
.hero__label {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: .75rem;
}
.hero__label::before {
  content: '';
  display: block;
  width: 32px;
  height: 1.5px;
  background: var(--c-gold);
}
.hero__title {
  font-family: var(--ff-serif);
  font-size: clamp(2.8rem, 6.5vw, 5rem);
  line-height: 1.07;
  margin-bottom: 1.5rem;
  max-width: 760px;
}
.hero__title span { color: var(--c-gold); }
.hero__sub {
  font-size: 1.1rem;
  color: var(--c-muted);
  max-width: 520px;
  margin-bottom: 2.75rem;
  line-height: 1.75;
}
.hero__cta { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 4rem; }
.hero__trust {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
  padding-top: 2.5rem;
  border-top: 1px solid var(--c-border);
}
.trust-item { display: flex; flex-direction: column; }
.trust-item strong {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--c-gold);
  font-family: var(--ff-serif);
  line-height: 1;
  margin-bottom: .2rem;
}
.trust-item span { font-size: .8rem; color: var(--c-muted); }
.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.hero__scroll a {
  color: var(--c-muted);
  font-size: 1.25rem;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ══════════════════════════════════════
   À PROPOS
═══════════════════════════════════════ */
.apropos { background: var(--c-bg2); }
.apropos__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 5rem;
  align-items: center;
}
.apropos__image { position: relative; }
.apropos__photo-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  max-width: 340px;
  background: var(--c-bg3);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-muted);
  font-size: .9rem;
  text-align: center;
  border: 1px dashed var(--c-border-m);
}
.apropos__badge {
  position: absolute;
  bottom: -1rem;
  right: 1rem;
  background: var(--c-gold);
  color: #0c1220;
  padding: .9rem 1.2rem;
  border-radius: var(--radius);
  text-align: center;
  font-size: .75rem;
  font-weight: 700;
  line-height: 1.5;
  box-shadow: var(--glow-gold);
}
.apropos__text p { margin-bottom: 1rem; color: var(--c-muted); line-height: 1.8; }
.apropos__text p strong { color: var(--c-text); font-weight: 600; }
.apropos__values {
  margin-top: 1.75rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .6rem;
}
.apropos__values li {
  font-size: .875rem;
  font-weight: 500;
  color: var(--c-muted);
  padding: .4rem 0;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.apropos__values li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-gold);
  flex-shrink: 0;
}

/* ══════════════════════════════════════
   PACKS
═══════════════════════════════════════ */
.packs { background: var(--c-bg); }
.packs__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 1rem;
}
.pack-card {
  background: var(--c-card);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  border: 1px solid var(--c-border);
  position: relative;
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.pack-card:hover {
  border-color: rgba(201,162,39,.35);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.pack-card--featured {
  border-color: rgba(201,162,39,.4);
  background: linear-gradient(160deg, #161e2e 0%, #1a2435 100%);
}
.pack-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--c-gold);
  color: #0c1220;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .3rem 1rem;
  border-radius: 50px;
  white-space: nowrap;
}
.pack-card__icon { font-size: 2rem; }
.pack-card__header h3 {
  font-family: var(--ff-serif);
  font-size: 1.25rem;
  color: var(--c-text);
  margin-bottom: .3rem;
}
.pack-card__tagline { font-size: .85rem; color: var(--c-muted); }
.pack-card__price { border-top: 1px solid var(--c-border); padding-top: 1rem; }
.price {
  font-family: var(--ff-serif);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--c-gold);
  display: block;
}
.price__detail { font-size: .78rem; color: var(--c-muted); margin-top: .15rem; }
.pack-card__list { flex: 1; }
.pack-card__list li {
  font-size: .85rem;
  padding: .4rem 0;
  border-bottom: 1px solid var(--c-border);
  padding-left: 1.25rem;
  position: relative;
  color: var(--c-muted);
}
.pack-card__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--c-gold);
  font-weight: 700;
  font-size: .8rem;
}
.pack-card__footer {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  margin-top: .5rem;
}
.packs__note {
  margin-top: 2.5rem;
  background: var(--c-gold-dim);
  border-left: 3px solid var(--c-gold);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: .95rem;
  color: var(--c-muted);
}
.packs__note strong { color: var(--c-gold); }

/* ══════════════════════════════════════
   SECTION PRO (B2B)
═══════════════════════════════════════ */
.pro-section {
  background: var(--c-bg2);
  padding: var(--section-py) 0;
}
.pro-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 3.5rem;
}
.pro-intro__text p { color: var(--c-muted); line-height: 1.8; margin-bottom: 1rem; }
.pro-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.5rem;
}
.pro-tag {
  background: var(--c-bg3);
  border: 1px solid var(--c-border-m);
  color: var(--c-muted);
  font-size: .8rem;
  font-weight: 500;
  padding: .35rem .85rem;
  border-radius: 50px;
}
.pro-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.pro-card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  position: relative;
  transition: all .3s;
}
.pro-card:hover {
  border-color: rgba(201,162,39,.35);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.pro-card--premium { border-color: rgba(201,162,39,.3); }
.pro-card__label {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: .75rem;
}
.pro-card h3 {
  font-family: var(--ff-serif);
  font-size: 1.4rem;
  color: var(--c-text);
  margin-bottom: .5rem;
}
.pro-card__desc { font-size: .9rem; color: var(--c-muted); line-height: 1.7; margin-bottom: 1.5rem; }
.pro-card__price {
  font-family: var(--ff-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-gold);
  margin-bottom: .25rem;
}
.pro-card__price-detail { font-size: .8rem; color: var(--c-muted); margin-bottom: 1.5rem; }
.pro-card__list li {
  font-size: .875rem;
  color: var(--c-muted);
  padding: .35rem 0;
  border-bottom: 1px solid var(--c-border);
  padding-left: 1.25rem;
  position: relative;
}
.pro-card__list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--c-gold);
  font-size: .8rem;
}

/* ══════════════════════════════════════
   MÉTHODE
═══════════════════════════════════════ */
.methode { background: var(--c-bg); }
.methode__steps {
  display: flex;
  align-items: stretch;
  gap: .75rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}
.step {
  flex: 1;
  min-width: 190px;
  background: var(--c-card);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  border: 1px solid var(--c-border);
  transition: border-color .3s;
}
.step:hover { border-color: rgba(201,162,39,.3); }
.step__num {
  font-family: var(--ff-serif);
  font-size: 3rem;
  font-weight: 700;
  color: var(--c-gold);
  line-height: 1;
  margin-bottom: .75rem;
  opacity: .8;
}
.step h3 { font-size: 1rem; font-weight: 600; margin-bottom: .6rem; color: var(--c-text); }
.step p { font-size: .875rem; color: var(--c-muted); line-height: 1.65; }
.step__arrow { font-size: 1.25rem; color: var(--c-gold); align-self: center; padding: 0 .25rem; opacity: .4; }

/* ══════════════════════════════════════
   TÉMOIGNAGES
═══════════════════════════════════════ */
.temoignages { background: var(--c-bg2); }
.temoignages__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}
.temoignage {
  background: var(--c-card);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  border-top: 3px solid var(--c-gold);
  transition: transform .3s;
}
.temoignage:hover { transform: translateY(-3px); }
.temoignage__stars { color: var(--c-gold); font-size: 1rem; margin-bottom: .75rem; letter-spacing: .12em; }
.temoignage p { font-style: italic; color: var(--c-muted); line-height: 1.75; margin-bottom: 1rem; font-size: .95rem; }
.temoignage cite { font-size: .8rem; color: var(--c-gold); font-style: normal; font-weight: 600; }

/* ══════════════════════════════════════
   RÉSERVATION
═══════════════════════════════════════ */
.reservation { background: var(--c-bg); }
.calendar-embed { max-width: 680px; margin: 0 auto; }
.calendar-placeholder {
  background: var(--c-card);
  border: 1px solid var(--c-border-m);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
}
.calendar-placeholder__icon { font-size: 2.75rem; margin-bottom: 1.25rem; }
.calendar-placeholder h3 {
  font-family: var(--ff-serif);
  font-size: 1.5rem;
  color: var(--c-text);
  margin-bottom: .75rem;
}
.calendar-placeholder p { color: var(--c-muted); margin-bottom: 1.75rem; font-size: .95rem; }
.calendar-note { font-size: .8rem; color: var(--c-muted); margin-top: 1rem; }

/* ══════════════════════════════════════
   CONTACT
═══════════════════════════════════════ */
.contact { background: var(--c-bg2); }
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: flex-start;
}
.contact__details { margin-top: 1.75rem; display: flex; flex-direction: column; gap: .9rem; }
.contact__details li { display: flex; align-items: flex-start; gap: .75rem; font-size: .95rem; color: var(--c-muted); }
.contact__icon { font-size: 1.1rem; margin-top: 2px; }
.contact__details a { color: var(--c-gold); }
.contact__form {
  background: var(--c-card);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group label { font-size: .8rem; font-weight: 600; color: var(--c-gold); letter-spacing: .04em; }
.form-group input,
.form-group select,
.form-group textarea {
  padding: .75rem 1rem;
  border: 1px solid var(--c-border-m);
  border-radius: var(--radius);
  font-family: var(--ff-sans);
  font-size: .95rem;
  color: var(--c-text);
  background: var(--c-bg3);
  transition: border-color .2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--c-gold); }
.form-group select option { background: var(--c-bg3); }
.form-group textarea { resize: vertical; min-height: 110px; }
.form-legal { font-size: .75rem; color: var(--c-muted); line-height: 1.5; text-align: center; }

/* ══════════════════════════════════════
   HISTOIRE (page séparée)
═══════════════════════════════════════ */
.histoire-hero {
  min-height: 55vh;
  display: flex;
  align-items: flex-end;
  padding-top: 70px;
  background: var(--c-bg);
  position: relative;
  overflow: hidden;
}
.histoire-hero__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 70% at 80% 40%, rgba(201,162,39,.07) 0%, transparent 60%),
              radial-gradient(ellipse 40% 50% at 10% 70%, rgba(46,158,140,.07) 0%, transparent 50%);
}
.histoire-hero__content {
  position: relative;
  z-index: 1;
  padding: 4rem 1.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}
.histoire-body {
  background: var(--c-bg2);
  padding: var(--section-py) 0;
}
.histoire-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 5rem;
  align-items: flex-start;
}
.histoire-sticky {
  position: sticky;
  top: 90px;
}
.histoire-photo {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.5rem;
}
.histoire-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.histoire-quote {
  background: var(--c-gold-dim);
  border-left: 3px solid var(--c-gold);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  font-size: .9rem;
  color: var(--c-muted);
  line-height: 1.75;
}
.histoire-content h2 {
  font-family: var(--ff-serif);
  font-size: 1.6rem;
  color: var(--c-text);
  margin-bottom: 1rem;
  margin-top: 2.5rem;
}
.histoire-content h2:first-child { margin-top: 0; }
.histoire-content p {
  color: var(--c-muted);
  line-height: 1.9;
  margin-bottom: 1.25rem;
  font-size: 1rem;
}
.histoire-content p strong { color: var(--c-text); font-weight: 600; }
.histoire-content .milestone {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--c-border);
}
.milestone__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-gold);
  flex-shrink: 0;
  margin-top: .55rem;
}
.milestone__content { flex: 1; }
.milestone__year {
  font-size: .75rem;
  font-weight: 700;
  color: var(--c-gold);
  letter-spacing: .1em;
  margin-bottom: .25rem;
}
.milestone__text { font-size: .9rem; color: var(--c-muted); line-height: 1.65; }

/* ══════════════════════════════════════
   FOOTER
═══════════════════════════════════════ */
.footer { background: #080e18; }
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding: 4rem 1.5rem 3rem;
}
.footer__logo {
  font-family: var(--ff-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: .75rem;
}
.footer__logo span { color: var(--c-gold); }
.footer__brand p { font-size: .875rem; line-height: 1.75; color: var(--c-muted); }
.footer__nav h4, .footer__packs h4, .footer__legal h4 {
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 1rem;
}
.footer__nav li, .footer__packs li, .footer__legal li { margin-bottom: .5rem; }
.footer__nav a, .footer__packs a, .footer__legal a {
  font-size: .875rem;
  color: var(--c-muted);
  transition: color .2s;
}
.footer__nav a:hover, .footer__packs a:hover, .footer__legal a:hover { color: var(--c-gold); }
.footer__bottom {
  border-top: 1px solid var(--c-border);
  padding: 1.5rem;
  text-align: center;
}
.footer__bottom p { font-size: .8rem; color: rgba(255,255,255,.25); margin-bottom: .25rem; }

/* ── Back to top ── */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 46px;
  height: 46px;
  background: var(--c-gold);
  color: #0c1220;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  box-shadow: var(--glow-gold);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s, transform .3s;
  z-index: 99;
}
.back-to-top.visible { opacity: 1; pointer-events: all; }
.back-to-top:hover { transform: translateY(-3px); }

/* ══════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════ */
@media (max-width: 1024px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .apropos__grid { grid-template-columns: 1fr; gap: 3rem; }
  .pro-intro { grid-template-columns: 1fr; gap: 2rem; }
  .histoire-grid { grid-template-columns: 1fr; gap: 3rem; }
  .histoire-sticky { position: static; }
}

@media (max-width: 768px) {
  :root { --section-py: 4rem; }
  .nav__toggle { display: flex; }
  .nav__links {
    display: none;
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(12,18,32,.98);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--c-border);
    box-shadow: var(--shadow);
  }
  .nav__links.open { display: flex; }
  .hero__title { font-size: 2.6rem; }
  .hero__cta { flex-direction: column; }
  .hero__trust { gap: 1.75rem; }
  .methode__steps { flex-direction: column; }
  .step__arrow { transform: rotate(90deg); align-self: center; }
  .contact__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .footer__grid { grid-template-columns: 1fr; }
  .pack-card__footer { flex-direction: column; }
  .pack-card__footer .btn { width: 100%; justify-content: center; }
  .apropos__values { grid-template-columns: 1fr; }
}