/* ============================================================
   RENDEVE - Design system
   Concept : le dossier client tamponné. Chaque preuve (un RDV,
   un contrat signé) est traitée comme une pièce de dossier
   validée - tamponnée, classée, archivée. Papier + encre +
   un seul tampon rouge, jamais plus.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  --paper: #F6F5F1;
  --paper-alt: #EEEBE2;
  --ink: #17191A;
  --ink-soft: #55585B;
  --ink-faint: #8A8D87;
  --navy: #1C2B3A;
  --navy-soft: #2E4258;
  --stamp: #8C2F2F;
  --rule: #D9D5C9;
  --rule-strong: #C7C2B3;
  --radius: 3px;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
}

h1, h2, h3, .display {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}

h1 { font-size: clamp(2.6rem, 6.4vw, 5.2rem); line-height: 1.02; font-weight: 500; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.9rem); line-height: 1.12; letter-spacing: -0.015em; }
h3 { font-size: 1.3rem; line-height: 1.3; }

p { margin: 0 0 1em; color: var(--ink-soft); }
p:last-child { margin-bottom: 0; }

.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stamp);
  display: inline-block;
  margin-bottom: 14px;
}

.lede {
  font-size: 1.2rem;
  color: var(--ink-soft);
  max-width: 620px;
}

/* ---------- Nav ---------- */
.site-nav {
  border-bottom: 1px solid transparent;
  background: rgba(246,245,241,0.7);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  position: sticky;
  top: 0;
  z-index: 40;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.site-nav.scrolled {
  border-bottom-color: var(--rule);
  box-shadow: 0 8px 24px -18px rgba(0,0,0,0.25);
}
.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.35rem;
  text-decoration: none;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
}
.nav-links {
  display: flex;
  gap: 34px;
  align-items: center;
  font-size: 0.94rem;
}
.nav-links a { text-decoration: none; color: var(--ink-soft); }
.nav-links a:hover { color: var(--ink); }
.nav-links .btn { margin-left: 6px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: var(--ink);
  padding: 6px 4px;
}

@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    padding: 18px 32px 26px;
    box-shadow: 0 12px 24px -18px rgba(0,0,0,0.2);
  }
  .nav-links.open { display: flex; }
  .nav-links a {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--rule);
    color: var(--ink);
  }
  .nav-links a.btn {
    border-bottom: none;
    margin: 10px 0 0;
    width: auto;
  }
  .nav-links a.btn-primary { color: var(--paper); }
  .nav-links a.btn-ghost { color: var(--ink); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  padding: 13px 26px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .25s ease, background .2s ease;
  will-change: transform;
}
.btn-primary { background: var(--ink); color: var(--paper); box-shadow: 0 1px 2px rgba(0,0,0,0.06); }
.btn-primary:hover { background: var(--navy); transform: translateY(-2px); box-shadow: 0 12px 24px -12px rgba(28,43,58,0.45); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost { border-color: var(--ink); color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); transform: translateY(-2px); }
.btn-sm { padding: 9px 18px; font-size: 0.85rem; }

/* ---------- Sections ---------- */
section { padding: 128px 0; }
section.tight { padding: 84px 0; }
.section-border-top { border-top: 1px solid var(--rule); }
.on-ink { background: var(--ink); color: var(--paper); }
.on-ink p { color: #C7CAC6; }
.on-ink h2, .on-ink h1 { color: var(--paper); }

/* ---------- Hero ---------- */
.hero {
  padding: 110px 0 80px;
  position: relative;
}
.hero .eyebrow { color: var(--stamp); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 60px;
  align-items: end;
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
}

/* ---------- Stamp (signature element) ---------- */
.stamp {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 22px 26px;
  border: 1px solid var(--ink);
  color: var(--ink);
  text-align: left;
  line-height: 1.1;
  flex-shrink: 0;
  position: relative;
  min-width: 148px;
}
.stamp::before, .stamp::after {
  content: '';
  position: absolute;
  width: 9px;
  height: 9px;
  border-color: var(--stamp);
  border-style: solid;
}
.stamp::before { top: -1px; left: -1px; border-width: 2px 0 0 2px; }
.stamp::after { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; }
.stamp .num {
  font-family: 'Fraunces', serif;
  font-size: 2.1rem;
  font-weight: 500;
}
.stamp .unit {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 6px;
}

.stamp-row {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

/* client index grid */
.client-index {
  margin-top: 50px;
  border-top: 1px solid var(--rule-strong);
}
.client-index .head {
  display: flex;
  justify-content: space-between;
  padding: 16px 2px 14px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.client-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-left: 1px solid var(--rule);
  border-top: 1px solid var(--rule);
}
@media (max-width: 760px) { .client-grid { grid-template-columns: repeat(2, 1fr); } }
.client-grid span, .client-grid a {
  display: block;
  padding: 15px 16px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  color: var(--ink-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-decoration: none;
  transition: background .15s ease, color .15s ease;
}
.client-grid a:hover {
  background: var(--paper-alt);
  color: var(--ink);
}

/* ---------- Stat bar ---------- */
.stat-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}
.stat {
  padding: 34px 28px;
  border-right: 1px solid var(--rule);
}
.stat:last-child { border-right: none; }
.stat .num {
  font-family: 'Fraunces', serif;
  font-size: 2.5rem;
  font-weight: 500;
  color: var(--navy);
  line-height: 1;
}
.stat .label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin-top: 8px;
}
@media (max-width: 760px) {
  .stat-bar { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
}

/* ---------- Feature triptych ---------- */
.triptych {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
@media (max-width: 860px) { .triptych { grid-template-columns: 1fr; gap: 40px; } }
.feature .eyebrow { color: var(--navy-soft); }
.feature h3 { margin-bottom: 12px; }

/* ---------- Method list ---------- */
.method-list { border-top: 1px solid var(--rule); }
.method-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 28px;
  padding: 32px 0;
  border-bottom: 1px solid var(--rule);
}
.method-item .step {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--stamp);
  font-size: 0.85rem;
  padding-top: 6px;
}
.method-item h3 { margin-bottom: 8px; }

/* ---------- Case cards (home preview) ---------- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.case-card {
  background: var(--paper);
  padding: 34px 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-decoration: none;
  color: inherit;
  transition: background .2s ease, transform .3s cubic-bezier(.2,.8,.2,1), box-shadow .3s ease;
  position: relative;
}
.case-card:hover {
  background: var(--paper-alt);
  transform: translateY(-4px);
  box-shadow: 0 20px 32px -22px rgba(23,25,26,0.28);
  z-index: 2;
}
.case-card .co {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.case-card .metric {
  font-family: 'Fraunces', serif;
  font-size: 2rem;
  color: var(--navy);
}
.case-card .metric-label { font-size: 0.92rem; color: var(--ink-soft); }
.case-card .name { font-size: 1.15rem; font-weight: 600; font-family: 'Fraunces', serif; }
.case-card .arrow { margin-top: auto; font-family: 'IBM Plex Mono', monospace; font-size: 0.8rem; color: var(--stamp); }

/* ---------- Testimonials ---------- */
.testi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
@media (max-width: 760px) { .testi-grid { grid-template-columns: 1fr; } }
.testi {
  background: var(--paper);
  padding: 34px;
}
.testi .stars { color: var(--stamp); font-size: 0.9rem; letter-spacing: 2px; margin-bottom: 14px; }
.testi p.quote { font-family: 'Fraunces', serif; font-style: italic; font-size: 1.08rem; color: var(--ink); }
.testi .who { font-family: 'IBM Plex Mono', monospace; font-size: 0.8rem; color: var(--ink-soft); margin-top: 16px; }

/* ---------- FAQ ---------- */
.faq-item {
  border-bottom: 1px solid var(--rule);
  padding: 26px 0;
}
.faq-item h3 { font-size: 1.08rem; margin-bottom: 10px; font-family: 'Inter', sans-serif; font-weight: 600; }

/* ---------- Sector index (cas clients) ---------- */
.sector-block { padding: 56px 0; border-bottom: 1px solid var(--rule); }
.sector-block:first-of-type { border-top: 1px solid var(--rule); }
.sector-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 30px;
  gap: 20px;
}
.sector-head .tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--ink-faint);
}

/* ---------- Detail page (case study) ---------- */
.case-hero {
  display: grid;
  grid-template-columns: 1fr 160px;
  gap: 40px;
  align-items: start;
  padding: 90px 0 60px;
}
@media (max-width: 700px) { .case-hero { grid-template-columns: 1fr; } }
.case-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: 10px;
}
.case-body {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid var(--rule);
}
.case-body .k {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--stamp);
  padding-top: 4px;
}
.case-body .v { max-width: 640px; }
.result-box {
  background: var(--ink);
  color: var(--paper);
  padding: 40px;
  margin: 40px 0;
  border-radius: var(--radius);
}
.result-box .eyebrow { color: #E3B3B3; }
.result-box p { color: #DCDDD9; font-size: 1.1rem; }

/* ---------- Team grid ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 30px;
  margin-top: 40px;
}
.team-card { text-align: left; }
.team-card img,
.team-card .ph {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--paper-alt);
  margin-bottom: 12px;
  filter: grayscale(45%);
}
.team-card .tname { font-family: 'Fraunces', serif; font-weight: 600; }
.team-card .trole { font-family: 'IBM Plex Mono', monospace; font-size: 0.78rem; color: var(--stamp); }

/* ---------- Footer ---------- */
footer {
  background: var(--ink);
  color: #B9BBB6;
  padding: 56px 0 34px;
  font-size: 0.92rem;
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
footer a { color: #B9BBB6; text-decoration: none; }
footer a:hover { color: var(--paper); }
footer .foot-links { display: flex; gap: 22px; flex-wrap: wrap; }

.cta-final {
  text-align: center;
  padding: 110px 0;
}
.cta-final h2 { max-width: 640px; margin: 0 auto 32px; }

.crumb {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  color: var(--ink-faint);
  padding: 26px 0 0;
}
.crumb a { color: var(--ink-faint); text-decoration: none; }
.crumb a:hover { color: var(--ink); }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1);
}
.reveal-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}