:root {
  --ink:        #0d0d0d;
  --paper:      #ffffff;
  --off-white:  #f7f7f5;
  --gold:       #C9A84C;
  --gold-dark:  #a0802e;
  --gold-light: #e8d08a;
  --muted:      #6b6b6b;
  --line:       rgba(0,0,0,0.1);
  --line-light: rgba(255,255,255,0.15);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ─── HEADER ─────────────────────────────────────── */
.site-header {
  padding: 1.6rem 5vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: var(--paper);
  z-index: 200;
}

.site-logo {
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.logo-img {
  height: 48px;
  width: auto;
  display: block;
}

.site-nav a {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  margin-left: 2.5rem;
  transition: color 0.2s;
}
.site-nav a:hover { color: var(--gold); }

/* ─── HERO ───────────────────────────────────────── */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8vw 5vw 6vw;
  position: relative;
  overflow: hidden;
  background: var(--ink);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(201,168,76,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 20% 80%, rgba(201,168,76,0.04) 0%, transparent 60%);
  pointer-events: none;
}

/* décoratif : grande lettre en fond */
.hero::after {
  content: 'T';
  position: absolute;
  right: -2vw;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'Cormorant Garamond', serif;
  font-size: 40vw;
  font-weight: 600;
  color: rgba(201,168,76,0.04);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.hero-eyebrow {
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.1s forwards;
}

.hero h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(3rem, 7.5vw, 7rem);
  font-weight: 300;
  line-height: 1.05;
  color: var(--paper);
  max-width: 15ch;
  opacity: 0;
  animation: fadeUp 0.9s 0.25s forwards;
}

.hero h1 em {
  font-style: italic;
  color: var(--gold);
}

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: rgba(255,255,255,0.55);
  max-width: 50ch;
  margin-top: 2.5rem;
  font-weight: 300;
  line-height: 1.8;
  opacity: 0;
  animation: fadeUp 0.9s 0.4s forwards;
}

.hero-cta {
  margin-top: 4rem;
  display: flex;
  gap: 1.5rem;
  align-items: center;
  opacity: 0;
  animation: fadeUp 0.9s 0.55s forwards;
}

/* ─── BOUTONS ─────────────────────────────────────── */
.btn-gold {
  display: inline-block;
  background: var(--gold);
  color: var(--ink);
  padding: 0.95rem 2.4rem;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  font-weight: 500;
  transition: background 0.25s, transform 0.2s;
}
.btn-gold:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
}

.btn-ghost-white {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.25);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.btn-ghost-white:hover {
  color: var(--gold);
  border-color: var(--gold);
}

.btn-dark {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  padding: 0.95rem 2.4rem;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  font-weight: 500;
  transition: background 0.25s, transform 0.2s;
}
.btn-dark:hover {
  background: #222;
  transform: translateY(-1px);
}

/* ─── SECTIONS BASE ──────────────────────────────── */
.section {
  padding: 7vw 5vw;
}

.section-label {
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
  display: block;
}

.section h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 400;
  line-height: 1.15;
  max-width: 26ch;
}

/* ─── CONSTAT ─────────────────────────────────────── */
.constat {
  background: var(--off-white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.constat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6vw;
  align-items: center;
  margin-top: 4rem;
}

.constat-body p {
  color: var(--muted);
  font-weight: 300;
  line-height: 1.9;
  font-size: 1.05rem;
  margin-bottom: 1rem;
}

.constat-pull {
  border-left: 2px solid var(--gold);
  padding: 1.5rem 0 1.5rem 2.5rem;
}

.constat-pull blockquote {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-style: italic;
  font-weight: 300;
  line-height: 1.45;
  color: var(--ink);
}

/* ─── ENJEU ───────────────────────────────────────── */
.enjeu-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-top: 4rem;
  border: 1px solid var(--line);
}

.enjeu-card {
  padding: 3rem 2.8rem;
  border-right: 1px solid var(--line);
}
.enjeu-card:last-child { border-right: none; }

.enjeu-card .card-bar {
  width: 40px;
  height: 2px;
  background: var(--gold);
  margin-bottom: 1.8rem;
}

.enjeu-card h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.3rem, 2vw, 1.8rem);
  font-weight: 400;
  line-height: 1.3;
  margin-bottom: 1rem;
}

.enjeu-card p {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.8;
}

.enjeu-card.dark {
  background: var(--ink);
  border-right-color: rgba(255,255,255,0.08);
}
.enjeu-card.dark h3 { color: var(--paper); }
.enjeu-card.dark p  { color: rgba(255,255,255,0.45); }
.enjeu-card.dark .card-bar { background: var(--gold); }

/* ─── DIAGNOSTIC ──────────────────────────────────── */
.diagnostic {
  background: var(--gold);
  padding: 7vw 5vw;
  text-align: center;
}

.diagnostic h2 {
  color: var(--ink);
  margin: 0 auto 1.2rem;
  font-style: italic;
}

.diagnostic p {
  color: rgba(0,0,0,0.6);
  font-size: 1rem;
  font-weight: 300;
  margin-bottom: 3rem;
}

.diag-meta {
  display: block;
  margin-top: 1.2rem;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(0,0,0,0.4);
}

/* ─── APPROCHE ────────────────────────────────────── */
.approche-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 4rem;
  border: 1px solid var(--line);
}

.approche-item {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--line);
  transition: background 0.25s;
}
.approche-item:last-child { border-right: none; }
.approche-item:hover { background: var(--off-white); }

.approche-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3.5rem;
  font-weight: 300;
  color: rgba(0,0,0,0.07);
  line-height: 1;
  margin-bottom: 1rem;
}

.approche-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  color: var(--ink);
}

.approche-item:hover .approche-title {
  color: var(--gold-dark);
}

.approche-desc {
  font-size: 0.87rem;
  color: var(--muted);
  font-weight: 300;
  line-height: 1.75;
}

/* ─── POUR QUI ────────────────────────────────────── */
.pourqui {
  background: var(--ink);
  color: var(--paper);
}

.pourqui .section-label { color: var(--gold); }

.pourqui h2 { color: var(--paper); }

.pourqui-list {
  margin-top: 3.5rem;
  max-width: 640px;
  list-style: none;
}

.pourqui-list li {
  padding: 1.4rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-size: 1.02rem;
  color: rgba(255,255,255,0.75);
  font-weight: 300;
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  line-height: 1.6;
}

.pourqui-list li::before {
  content: '→';
  color: var(--gold);
  flex-shrink: 0;
}

/* ─── À PROPOS ────────────────────────────────────── */
.apropos-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8vw;
  align-items: center;
}

.apropos-text p {
  color: var(--muted);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: 1.2rem;
}

.apropos-signature {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.apropos-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.35rem;
  font-weight: 600;
}

.apropos-role {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 0.25rem;
}

.apropos-visual {
  aspect-ratio: 3/4;
  background: var(--off-white);
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.apropos-visual::after {
  content: 'VR';
  font-family: 'Cormorant Garamond', serif;
  font-size: 8rem;
  font-weight: 300;
  color: rgba(201,168,76,0.15);
  line-height: 1;
}

/* ─── CONTACT ─────────────────────────────────────── */
.contact {
  background: var(--ink);
  color: var(--paper);
  text-align: center;
  padding: 8vw 5vw;
  border-top: 1px solid rgba(201,168,76,0.2);
}

.contact h2 {
  color: var(--paper);
  margin: 0 auto 1rem;
}

.contact-services {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: 3rem;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.contact-services span {
  position: relative;
}

.contact-services span + span::before {
  content: '·';
  position: absolute;
  left: -1rem;
  color: var(--gold);
}

/* ─── FOOTER ──────────────────────────────────────── */
.site-footer {
  padding: 1.8rem 5vw;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.72rem;
  color: var(--muted);
  background: var(--paper);
}

/* ─── ANIMATIONS ──────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ─── RESPONSIVE ──────────────────────────────────── */
@media (max-width: 960px) {
  .constat-grid,
  .apropos-inner { grid-template-columns: 1fr; }
  .enjeu-cards   { grid-template-columns: 1fr; }
  .enjeu-card    { border-right: none; border-bottom: 1px solid var(--line); }
  .approche-grid { grid-template-columns: 1fr 1fr; }
  .approche-item:nth-child(2) { border-right: none; }
  .approche-item:nth-child(1),
  .approche-item:nth-child(2) { border-bottom: 1px solid var(--line); }
  .apropos-visual { display: none; }
  .site-nav { display: none; }
  .site-footer { flex-direction: column; gap: 0.4rem; text-align: center; }
}

@media (max-width: 600px) {
  .approche-grid  { grid-template-columns: 1fr; }
  .approche-item  { border-right: none; border-bottom: 1px solid var(--line); }
  .hero-cta       { flex-direction: column; align-items: flex-start; }
}