/* Convertia — landing */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(12,26,30,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 66px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -.03em;
  color: #fff;
  text-decoration: none;
}
.brand .mark {
  width: 22px; height: 22px;
  border-radius: 6px;
  background: linear-gradient(150deg, var(--lagoon), var(--signal));
}
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a {
  font-size: 14px;
  color: rgba(255,255,255,.66);
  text-decoration: none;
}
.nav a:hover { color: #fff; }
.header-cta { margin-left: 8px; }
@media (max-width: 860px) { .nav { display: none; } .header-cta { margin-left: auto; } }

/* ---------- Hero ---------- */
.hero {
  background: var(--ink);
  color: #fff;
  padding: 74px 0 90px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -60% 40%;
  height: 460px;
  background: radial-gradient(closest-side, rgba(23,166,160,.22), transparent 70%);
  pointer-events: none;
}
.hero .wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-size: clamp(38px, 5vw, 58px);
  font-weight: 800;
  margin-bottom: 20px;
}
.hero h1 em {
  font-style: normal;
  color: var(--lagoon);
}
.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,.72);
  max-width: 46ch;
  margin-bottom: 26px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 30px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 5px 10px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(255,255,255,.16);
  color: rgba(255,255,255,.72);
}
.chip.no { border-style: dashed; color: rgba(255,255,255,.38); text-decoration: line-through; }
@media (max-width: 940px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 54px 0 66px; }
}

/* ---------- Sections ---------- */
.section { padding: 84px 0; }
.section-head { max-width: 62ch; margin-bottom: 44px; }
.section h2 { font-size: clamp(27px, 3.4vw, 38px); }
.section-head p { color: var(--slate); font-size: 17px; margin: 0; }
.section.dark { background: var(--ink-2); color: #fff; }
.section.dark .section-head p { color: rgba(255,255,255,.68); }
.section.dark .eyebrow { color: var(--signal); }

/* Comparatif honnête */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.compare > div {
  border-radius: var(--r-lg);
  padding: 28px;
  border: 1px solid var(--line);
  background: var(--white);
}
.compare .not { background: transparent; border-style: dashed; }
.compare h3 { font-size: 20px; margin-bottom: 14px; }
.compare ul { margin: 0; padding-left: 18px; color: var(--slate); }
.compare li { margin-bottom: 9px; }
.compare .not h3, .compare .not li { color: var(--slate); }
@media (max-width: 780px) { .compare { grid-template-columns: 1fr; } }

/* Pipeline numérotée : l'ordre porte une information réelle */
.rail { display: grid; gap: 2px; }
.rail-step {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 24px;
  padding: 26px 0;
  border-top: 1px solid rgba(255,255,255,.12);
  align-items: start;
}
.rail-step:last-child { border-bottom: 1px solid rgba(255,255,255,.12); }
.rail-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--signal);
  padding-top: 4px;
}
.rail-step h3 { font-size: 20px; margin-bottom: 6px; }
.rail-step p { color: rgba(255,255,255,.66); margin: 0; max-width: 60ch; }

/* Grilles de cartes */
.grid { display: grid; gap: 18px; }
.grid.g3 { grid-template-columns: repeat(3, 1fr); }
.grid.g4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .grid.g3, .grid.g4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid.g3, .grid.g4 { grid-template-columns: 1fr; } }

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
}
.card h3 { font-size: 17px; margin-bottom: 8px; }
.card p { color: var(--slate); font-size: 15px; margin: 0; }
.card .k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--lagoon-dk);
  display: block;
  margin-bottom: 12px;
}

/* Tarifs */
.plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.plan {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
}
.plan.featured { border-color: var(--lagoon); box-shadow: 0 18px 40px -28px rgba(23,166,160,.7); }
.plan .name { font-family: var(--font-display); font-weight: 700; font-size: 19px; }
.plan .price { font-family: var(--font-display); font-size: 34px; font-weight: 800; letter-spacing: -.03em; margin: 10px 0 2px; }
.plan .price span { font-family: var(--font-body); font-size: 14px; font-weight: 500; color: var(--slate); letter-spacing: 0; }
.plan ul { list-style: none; padding: 0; margin: 18px 0 24px; font-size: 14px; color: var(--slate); }
.plan li { padding: 7px 0; border-top: 1px solid var(--line); }
.plan li:first-child { border-top: 0; }
.plan .btn { margin-top: auto; justify-content: center; }
@media (max-width: 980px) { .plans { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .plans { grid-template-columns: 1fr; } }

/* FAQ */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--font-mono); color: var(--lagoon); }
.faq details[open] summary::after { content: "–"; }
.faq p { color: var(--slate); margin: 12px 0 0; max-width: 74ch; }

/* CTA final */
.cta-final { text-align: center; padding: 92px 0; background: var(--ink); color: #fff; }
.cta-final h2 { font-size: clamp(28px, 4vw, 44px); max-width: 20ch; margin: 0 auto 16px; }
.cta-final p { color: rgba(255,255,255,.7); max-width: 52ch; margin: 0 auto 28px; }

/* Footer */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,.55);
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 34px 0;
  font-size: 14px;
}
.site-footer .wrap { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
.site-footer a { color: rgba(255,255,255,.75); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer .right { margin-left: auto; font-family: var(--font-mono); font-size: 12px; }

/* Révélation au scroll */
.reveal { opacity: 0; transform: translateY(14px); }
.reveal.in { opacity: 1; transform: none; transition: opacity .5s ease, transform .5s ease; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }