/* ============================================================
   BONK — site vitrine V2
   Palette stricte : #2E3244 (encre) · #516079 (bleu-gris)
   #FF6B2C (accent orange vif) · #C5C6C6 (gris clair) · #FFFFFF
   ============================================================ */
:root {
  --ink:      #2E3244;
  --steel:    #516079;
  --accent:   #FF6B2C;
  --accent-hot: #FF8A50;
  --grey:     #C5C6C6;
  --white:    #FFFFFF;
  /* dérivés par transparence des couleurs de la palette uniquement */
  --ink-90:   rgba(46, 50, 68, .92);
  --white-08: rgba(255, 255, 255, .08);
  --white-60: rgba(255, 255, 255, .72);
  --accent-12: rgba(255, 107, 44, .14);
  --accent-glow: 0 4px 18px rgba(255, 107, 44, .35);
  --shadow: 0 10px 30px rgba(46, 50, 68, .12);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
}

img { max-width: 100%; }
a { color: inherit; text-decoration: none; }

.container {
  width: min(1120px, 92%);
  margin-inline: auto;
}
.container.narrow { width: min(780px, 92%); }

/* ---------- Boutons ---------- */
.btn {
  display: inline-block;
  padding: .8rem 1.6rem;
  border-radius: 6px;
  font-weight: 600;
  border: 2px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-hot));
  color: var(--white);
}
.btn-primary:hover {
  box-shadow: var(--accent-glow);
  background: linear-gradient(135deg, var(--accent-hot), var(--accent));
}
.btn-outline {
  border-color: var(--steel);
  color: var(--steel);
  background: transparent;
}
.btn-outline:hover { background: var(--accent-12); border-color: var(--accent); color: var(--ink); }
.btn-lg { font-size: 1.05rem; padding: 1rem 2.1rem; }

/* ---------- Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--grey);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: .9rem 0;
}
.logo {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--ink);
}
.logo span { color: var(--accent); }
.nav-links {
  display: flex;
  gap: 1.8rem;
  margin-left: auto;
  font-weight: 500;
  color: var(--steel);
}
.nav-links a:hover { color: var(--accent); }
.nav-cta { padding: .55rem 1.2rem; font-size: .95rem; }
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: auto;
}
.burger span {
  width: 26px; height: 3px;
  background: var(--ink);
  border-radius: 2px;
}

/* ---------- Parallax décoratif ---------- */
.parallax-zone { position: relative; overflow: hidden; }
.parallax-shape {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  will-change: transform;
}
.shape-a {
  width: 420px; height: 420px;
  right: -140px; top: -120px;
  background: radial-gradient(circle, rgba(255, 107, 44, .22) 0%, transparent 70%);
}
.shape-b {
  width: 300px; height: 300px;
  left: -100px; bottom: -80px;
  background: radial-gradient(circle, rgba(255, 255, 255, .10) 0%, transparent 70%);
}
.shape-c {
  width: 520px; height: 520px;
  left: -180px; bottom: -200px;
  background: radial-gradient(circle, rgba(255, 107, 44, .16) 0%, transparent 70%);
}
.shape-d {
  width: 380px; height: 380px;
  right: -150px; top: -60px;
  background: radial-gradient(circle, rgba(255, 107, 44, .12) 0%, transparent 70%);
}
.shape-e {
  width: 340px; height: 340px;
  right: -90px; top: -110px;
  background: radial-gradient(circle, rgba(255, 107, 44, .30) 0%, transparent 70%);
}

/* ---------- Révélation au scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .6s ease, transform .6s cubic-bezier(.22, .61, .36, 1);
}
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--ink) 0%, var(--steel) 100%);
  color: var(--white);
  padding: 5.5rem 0 5rem;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.25fr .9fr;
  gap: 3.5rem;
  align-items: center;
}
.hero-kicker {
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .82rem;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 1rem;
}
.hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  line-height: 1.18;
  margin-bottom: 1.2rem;
}
.hero-sub {
  color: var(--white-60);
  font-size: 1.1rem;
  margin-bottom: 2rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-actions .btn-outline { border-color: var(--white); color: var(--white); }
.hero-actions .btn-outline:hover { background: var(--white-08); color: var(--white); border-color: var(--white); }

.panel-card {
  position: relative;
  z-index: 1;
  background: var(--white-08);
  border: 1px solid var(--white-60);
  border-radius: 12px;
  padding: 1.8rem 2rem;
  backdrop-filter: blur(2px);
}
.panel-title {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .8rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1rem;
}
.check-list { list-style: none; }
.check-list li {
  padding-left: 1.7rem;
  position: relative;
  margin-bottom: .55rem;
  color: var(--white);
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ---------- Bande de chiffres ---------- */
.stats-band {
  background: var(--white);
  border-bottom: 1px solid var(--grey);
  padding: 2.4rem 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}
.stat strong {
  display: block;
  font-size: 1.7rem;
  color: var(--accent);
}
.stat span { color: var(--steel); font-size: .95rem; }

/* ---------- Sections génériques ---------- */
.section { padding: 4.5rem 0; }
.section-alt { background: var(--grey); }
.section-kicker {
  text-transform: uppercase;
  letter-spacing: .13em;
  font-size: .8rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: .6rem;
}
.section-kicker.light { color: var(--accent); }
.section h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin-bottom: .8rem;
}
.section-sub {
  color: var(--steel);
  max-width: 640px;
  margin-bottom: 2.5rem;
}
.section-sub.light { color: var(--white-60); }

/* ---------- Cartes offres ---------- */
.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
}
.card {
  background: var(--white);
  border: 1px solid var(--grey);
  border-radius: 12px;
  padding: 2rem 1.7rem;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px rgba(46, 50, 68, .06);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--steel); }
.card-highlight {
  border-top: 5px solid var(--accent);
  background: var(--white);
  box-shadow: 0 6px 20px rgba(255, 107, 44, .14);
}
.card-num {
  font-size: .85rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: .15em;
  margin-bottom: .7rem;
}
.card h3 { margin-bottom: .7rem; }
.card p { color: var(--steel); font-size: .97rem; margin-bottom: 1.1rem; }
.mini-list {
  list-style: none;
  margin-bottom: 1.4rem;
}
.mini-list li {
  padding-left: 1.4rem;
  position: relative;
  font-size: .93rem;
  color: var(--ink);
  margin-bottom: .4rem;
}
.mini-list li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}
.offers-note {
  margin-top: 1.8rem;
  max-width: 760px;
  color: var(--steel);
  font-size: .95rem;
  border-left: 4px solid var(--accent);
  padding-left: 1.1rem;
}

/* Tags cliquables en bas de carte */
.tag {
  margin-top: auto;
  align-self: flex-start;
  background: var(--grey);
  color: var(--ink);
  font-size: .78rem;
  font-weight: 600;
  padding: .35rem .8rem;
  border-radius: 99px;
  transition: background .15s ease, transform .15s ease, box-shadow .15s ease;
}
.tag-link:hover {
  background: var(--accent);
  color: var(--ink);
  transform: translateY(-2px);
  box-shadow: var(--accent-glow);
}
.tag-accent { background: var(--accent); color: var(--ink); }
.tag-accent.tag-link:hover { background: var(--accent-hot); }

/* ---------- Suivi continu / Pourquoi (cartes sombres & claires) ---------- */
.section-dark {
  background: var(--ink);
  color: var(--white);
}
.section-dark h2 { color: var(--white); }
.cards-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.6rem;
  margin-top: 2.2rem;
}
.dark-card {
  background: var(--steel);
  border-radius: 12px;
  padding: 1.8rem 1.7rem;
  border-left: 4px solid var(--accent);
}
.dark-card h3 { margin-bottom: .5rem; font-size: 1.08rem; }
.dark-card p { color: var(--white-60); font-size: .95rem; }

.why-grid { row-gap: 1.6rem; }
.why-card {
  background: var(--white);
  border: 1px solid var(--grey);
  border-top: 4px solid var(--accent);
  border-radius: 12px;
  padding: 1.8rem 1.7rem;
  transition: transform .15s ease, box-shadow .15s ease;
}
.why-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.why-card h3 { margin-bottom: .5rem; font-size: 1.08rem; }
.why-card p { color: var(--steel); font-size: .95rem; }

/* ---------- Méthode ---------- */
.split {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: start;
}
.split > div:first-child p { color: var(--steel); margin-top: .8rem; }
.steps { display: flex; flex-direction: column; gap: 1.4rem; }
.step {
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--grey);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 1.3rem 1.5rem;
}
.step span {
  flex-shrink: 0;
  width: 38px; height: 38px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: var(--white);
  font-weight: 800;
  border-radius: 50%;
}
.step h3 { font-size: 1.05rem; margin-bottom: .2rem; }
.step p { color: var(--steel); font-size: .93rem; }

/* ---------- FAQ ---------- */
details {
  border-bottom: 1px solid var(--grey);
  padding: 1.1rem 0;
}
summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--ink);
  list-style-position: outside;
}
summary:hover { color: var(--accent); }
details p { color: var(--steel); margin-top: .6rem; padding-left: 1.5rem; }

/* ---------- CTA final ---------- */
.cta {
  background: linear-gradient(120deg, var(--steel), var(--ink));
  color: var(--white);
  padding: 4.2rem 0;
}
.cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.cta h2 { margin-bottom: .5rem; }
.cta p { color: var(--white-60); max-width: 480px; }

/* ---------- Footer ---------- */
.footer {
  background: var(--ink);
  color: var(--grey);
  padding: 3.2rem 0 1.6rem;
  font-size: .92rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--steel);
}
.logo-footer { color: var(--white); margin-bottom: .8rem; }
.footer-mail a { color: var(--accent); font-weight: 600; }
.footer-title {
  color: var(--white);
  font-weight: 700;
  text-transform: uppercase;
  font-size: .8rem;
  letter-spacing: .1em;
  margin-bottom: .9rem;
}
.footer-grid nav a, .footer-grid div a:not(.logo) { display: block; margin-bottom: .5rem; }
.footer-grid a:hover { color: var(--accent); }
.footer-bottom {
  padding-top: 1.4rem;
  font-size: .82rem;
  color: var(--steel);
}

/* ---------- Pages légales ---------- */
.legal { padding: 4rem 0; }
.legal h1 { margin-bottom: 1.6rem; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.legal h2 {
  font-size: 1.15rem;
  margin: 1.8rem 0 .6rem;
  color: var(--ink);
  border-left: 4px solid var(--accent);
  padding-left: .8rem;
}
.legal p, .legal li { color: var(--steel); margin-bottom: .5rem; }
.legal ul { margin-left: 1.4rem; }
.legal strong { color: var(--ink); }
.legal-note {
  margin-top: 2.5rem;
  background: var(--accent-12);
  border: 1px dashed var(--accent);
  border-radius: 8px;
  padding: 1rem 1.3rem;
  color: var(--ink);
  font-size: .9rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .cards-3 { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 1.8rem; }

  .burger { display: flex; }
  .nav-links, .nav-cta { display: none; }
  .nav-open .nav-links {
    display: flex;
    flex-direction: column;
    width: 100%;
    padding: 1rem 0;
    border-top: 1px solid var(--grey);
    margin-top: .8rem;
  }
  .nav-inner { flex-wrap: wrap; }
  .nav-open .nav-inner { gap: .6rem; }
}
@media (max-width: 520px) {
  .cards-2 { grid-template-columns: 1fr; }
  .cta-inner { justify-content: center; text-align: center; }
}

/* ---------- Offres — variante A (esprit Sigma) ---------- */
.offres-dark {
  background: var(--ink);
  padding: 4.5rem 0;
}
.offres-dark h2 { color: var(--white); }
.va-card {
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 16px;
  padding: 2.2rem 1.8rem;
  display: flex;
  flex-direction: column;
  transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.va-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(255, 107, 44, .18);
}
.va-step {
  width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; color: var(--white);
  background: var(--accent-12); border: 1px solid var(--accent);
  margin-bottom: 1.1rem;
}
.va-card h3 { color: var(--white); font-size: 1.15rem; margin-bottom: .55rem; }
.va-card p { color: var(--white-60); font-size: .94rem; margin-bottom: 1.2rem; }
.va-list { list-style: none; margin-bottom: 1.6rem; }
.va-list li {
  color: var(--grey); font-size: .88rem;
  padding-left: 1.25rem; position: relative; margin-bottom: .35rem;
}
.va-list li::before { content: "—"; position: absolute; left: 0; color: var(--accent); }
.va-price {
  margin-top: auto;
  font-size: .78rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.va-flow {
  display: flex; align-items: center; gap: .7rem;
  margin-top: 2.4rem;
  color: var(--white-60); font-size: .85rem;
  flex-wrap: wrap;
}
.va-flow b { color: var(--white); }
.va-flow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

@media (max-width: 900px) {
  .offres-dark .cards-3 { grid-template-columns: 1fr; }
}

/* ---------- Raffinement offres (retour esthétique) ---------- */
.offres-dark {
  position: relative;
  background:
    radial-gradient(ellipse 80% 50% at 70% -10%, rgba(255,107,44,.10), transparent 60%),
    radial-gradient(ellipse 60% 40% at 10% 110%, rgba(81,96,121,.25), transparent 60%),
    var(--ink);
}
.va-card {
  backdrop-filter: blur(4px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06);
}
.va-card:hover { box-shadow: 0 12px 34px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.08); }
.va-step {
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(255,107,44,.15);
}
.offres-dark .btn-primary {
  border-radius: 99px;
  box-shadow: 0 4px 14px rgba(255,107,44,.30);
}
.offres-dark .btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
}