/* =========================================================
   EQOIA · Site corporate · Feuille de style principale
   Charte graphique Eqoia v1.0
   ========================================================= */

/* ----------- Variables ----------- */
:root {
  --bleu-acier: #2C4A6B;
  --bleu-acier-clair: #3E5E80;
  --bleu-acier-fonce: #1F3550;
  --cuivre: #B8843B;
  --cuivre-clair: #D19F55;
  --anthracite: #1F1F1F;
  --gris-fonce: #444444;
  --gris: #666666;
  --gris-clair: #B8B8B8;
  --gris-tres-clair: #E5E5E5;
  --sable: #F2EFEA;
  --sable-fonce: #E8E2D7;
  --blanc: #FFFFFF;

  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  --max-width: 1280px;
  --content-width: 880px;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;

  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ----------- Reset léger ----------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--anthracite);
  background: var(--blanc);
  font-weight: 400;
}

img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--bleu-acier); text-decoration: none; transition: color var(--transition-base); }
a:hover { color: var(--cuivre); }

/* ----------- Typographie ----------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.2;
  margin: 0 0 var(--space-md) 0;
  color: var(--anthracite);
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 400; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 500; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }

p { margin: 0 0 var(--space-sm) 0; }
.lead { font-size: 1.2rem; color: var(--gris-fonce); line-height: 1.55; max-width: 60ch; }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cuivre);
  margin-bottom: var(--space-sm);
}

/* ----------- Conteneurs ----------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}
.container-narrow {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}

/* ----------- Header ----------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  z-index: 100;
  transition: border-color var(--transition-base), background var(--transition-base);
}
.site-header.scrolled {
  border-bottom-color: var(--gris-tres-clair);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}

.site-logo {
  display: flex;
  align-items: center;
  height: 40px;
}
.site-logo img { height: 36px; width: auto; }

.main-nav { display: flex; align-items: center; gap: var(--space-md); }
.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--anthracite);
  letter-spacing: 0.01em;
  position: relative;
  padding: 0.5rem 0;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--cuivre);
  transition: width var(--transition-base);
}
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
.main-nav a.active { color: var(--bleu-acier); }

.lang-switch {
  display: flex;
  gap: 0.25rem;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.05em;
}
.lang-switch a { color: var(--gris-clair); padding: 0.25rem 0.5rem; }
.lang-switch a.active { color: var(--bleu-acier); }
.lang-switch span { color: var(--gris-clair); }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  width: 28px;
  height: 28px;
  cursor: pointer;
  padding: 0;
}
.menu-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--anthracite);
  margin: 6px 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

@media (max-width: 820px) {
  .menu-toggle { display: block; }
  .main-nav {
    position: fixed;
    top: 80px; left: 0; right: 0;
    background: var(--blanc);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-md);
    gap: var(--space-sm);
    border-bottom: 1px solid var(--gris-tres-clair);
    transform: translateY(-120%);
    visibility: hidden;
    opacity: 0;
    transition: transform var(--transition-base), opacity var(--transition-base), visibility 0s linear 0.3s;
  }
  .main-nav.open {
    transform: translateY(0);
    visibility: visible;
    opacity: 1;
    transition: transform var(--transition-base), opacity var(--transition-base), visibility 0s;
  }
  .lang-switch { margin-left: auto; margin-right: 1rem; }
}

/* ----------- Hero ----------- */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 120px 0 var(--space-xl) 0;
  background: linear-gradient(180deg, var(--sable) 0%, var(--blanc) 100%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
  width: 100%;
}

.hero-text { max-width: 620px; }
.hero h1 {
  margin-bottom: var(--space-md);
  color: var(--anthracite);
}
.hero h1 .accent { color: var(--bleu-acier); }
.hero .lead { font-size: 1.35rem; color: var(--gris-fonce); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.hero-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.hero-mark img {
  width: 320px;
  height: auto;
  opacity: 0;
  transform: scale(0.9);
  animation: heroMark 1.4s cubic-bezier(0.4, 0, 0.2, 1) 0.3s forwards;
}

@keyframes heroMark {
  to { opacity: 1; transform: scale(1); }
}

@media (max-width: 820px) {
  .hero { min-height: auto; padding: 120px 0 var(--space-lg) 0; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mark img { width: 200px; }
  .hero-mark { order: -1; }
}

/* ----------- Boutons ----------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  font-size: 0.92rem;
  font-weight: 500;
  font-family: var(--font-body);
  letter-spacing: 0.02em;
  border-radius: 2px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}
.btn-primary {
  background: var(--bleu-acier);
  color: var(--blanc);
  border-color: var(--bleu-acier);
}
.btn-primary:hover {
  background: var(--bleu-acier-fonce);
  border-color: var(--bleu-acier-fonce);
  color: var(--blanc);
  transform: translateY(-1px);
}
.btn-secondary {
  background: transparent;
  color: var(--bleu-acier);
  border-color: var(--bleu-acier);
}
.btn-secondary:hover {
  background: var(--bleu-acier);
  color: var(--blanc);
}
.btn-arrow::after {
  content: '→';
  transition: transform var(--transition-base);
}
.btn-arrow:hover::after { transform: translateX(4px); }

/* ----------- Sections ----------- */
section { padding: var(--space-xl) 0; }
section.compact { padding: var(--space-lg) 0; }
.section-title { margin-bottom: var(--space-lg); }
.section-title h2 { margin-bottom: var(--space-sm); }
.section-title p { color: var(--gris); max-width: 60ch; font-size: 1.1rem; }

.bg-sable { background: var(--sable); }
.bg-anthracite { background: var(--anthracite); color: var(--blanc); }
.bg-anthracite h1, .bg-anthracite h2, .bg-anthracite h3 { color: var(--blanc); }
.bg-anthracite p { color: var(--gris-clair); }
.bg-anthracite .eyebrow { color: var(--cuivre-clair); }

.bg-bleu { background: var(--bleu-acier); color: var(--blanc); }
.bg-bleu h1, .bg-bleu h2, .bg-bleu h3 { color: var(--blanc); }
.bg-bleu p { color: rgba(255, 255, 255, 0.85); }

/* ----------- Approach grid ----------- */
.approach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}
.approach-card {
  padding: var(--space-md);
  background: var(--blanc);
  border: 1px solid var(--gris-tres-clair);
  border-top: 2px solid var(--bleu-acier);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.approach-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(31, 53, 80, 0.08);
}
.approach-card .icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-sm);
  color: var(--bleu-acier);
}
.approach-card h3 { margin-bottom: 0.5rem; font-size: 1.15rem; }
.approach-card p { color: var(--gris); font-size: 0.95rem; }

/* ----------- Capabilities (split layout) ----------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
@media (max-width: 820px) {
  .split { grid-template-columns: 1fr; gap: var(--space-md); }
}

.capabilities-list {
  list-style: none;
  padding: 0;
  margin: var(--space-md) 0 0 0;
  border-top: 1px solid var(--gris-tres-clair);
}
.capabilities-list li {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--gris-tres-clair);
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.05rem;
}
.capabilities-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--cuivre);
  flex-shrink: 0;
  transform: rotate(45deg);
}

.capability-visual {
  position: relative;
  aspect-ratio: 4 / 5;
  background: var(--sable);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  overflow: hidden;
}
.capability-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 24px,
    rgba(44, 74, 107, 0.04) 24px,
    rgba(44, 74, 107, 0.04) 25px
  );
}
.capability-visual img { width: 50%; opacity: 0.4; mix-blend-mode: multiply; position: relative; z-index: 2; }

/* ----------- EDDO showcase ----------- */
.eddo-showcase {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
  padding: var(--space-xl) 0;
  background: var(--anthracite);
  color: var(--blanc);
  margin: 0;
  border: none;
}
.eddo-showcase .container {
  display: contents;
}
.eddo-content { padding: 0 clamp(1.5rem, 4vw, 3rem); }
.eddo-content h2 { color: var(--blanc); }
.eddo-content p { color: rgba(255, 255, 255, 0.78); }
.eddo-content .eyebrow { color: var(--cuivre-clair); }

.eddo-verrou {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}
.eddo-verrou-block {
  text-align: center;
  padding: var(--space-md);
}
.eddo-verrou-block .eddo-name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--blanc);
  line-height: 1;
  margin-bottom: 1rem;
}
.eddo-verrou-block .separator {
  width: 80px;
  height: 1px;
  background: rgba(255, 255, 255, 0.3);
  margin: 1rem auto;
}
.eddo-verrou-block .by-eqoia {
  font-size: 0.85rem;
  letter-spacing: 0.4em;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
}

@media (max-width: 820px) {
  .eddo-showcase { grid-template-columns: 1fr; gap: var(--space-md); }
}

/* ----------- Sequence (numbered process) ----------- */
.sequence {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}
.sequence-item {
  position: relative;
  padding-top: var(--space-md);
}
.sequence-item .number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 300;
  color: var(--cuivre);
  line-height: 1;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.04em;
}
.sequence-item .number::before {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--cuivre);
  margin-bottom: 1rem;
}
.sequence-item h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.sequence-item p { font-size: 0.95rem; color: var(--gris); }

/* ----------- Quote ----------- */
.quote-block {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  padding: var(--space-lg) 0;
}
.quote-block blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 400;
  line-height: 1.4;
  color: var(--bleu-acier);
  margin: 0 0 var(--space-md) 0;
  font-style: italic;
}
.quote-block cite {
  font-size: 0.9rem;
  font-style: normal;
  color: var(--gris);
  letter-spacing: 0.05em;
}

/* ----------- Stats / facts ----------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--gris-tres-clair);
}
.stat .number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 400;
  color: var(--bleu-acier);
  line-height: 1;
  letter-spacing: -0.02em;
}
.stat .label {
  font-size: 0.85rem;
  color: var(--gris);
  margin-top: 0.5rem;
  letter-spacing: 0.03em;
}

/* ----------- Contact section ----------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-card {
  background: var(--sable);
  padding: var(--space-md);
  border-left: 2px solid var(--cuivre);
}
.contact-card h3 {
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gris);
  margin-bottom: 0.75rem;
}
.contact-card .info {
  font-size: 1.1rem;
  color: var(--anthracite);
  font-weight: 500;
}
.contact-card .info a { color: var(--bleu-acier); }
.contact-card p { color: var(--gris-fonce); }

/* ----------- Footer ----------- */
.site-footer {
  background: var(--anthracite);
  color: var(--gris-clair);
  padding: var(--space-lg) 0 var(--space-md) 0;
  font-size: 0.92rem;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: var(--space-md);
}
@media (max-width: 820px) { .footer-inner { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .footer-inner { grid-template-columns: 1fr; } }

.footer-brand img { height: 32px; margin-bottom: var(--space-sm); filter: brightness(0) invert(1); opacity: 0.95; }
.footer-brand p { color: var(--gris-clair); font-size: 0.92rem; max-width: 30ch; }

.footer-col h4 {
  color: var(--blanc);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}
.footer-col a {
  display: block;
  color: var(--gris-clair);
  margin-bottom: 0.5rem;
}
.footer-col a:hover { color: var(--cuivre-clair); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--gris);
}
.footer-bottom a { color: var(--gris); }
.footer-bottom a:hover { color: var(--cuivre-clair); }

/* ----------- Animations au scroll ----------- */
.reveal { opacity: 1; transform: none; }
html.js-enabled .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
html.js-enabled .reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ----------- Page intérieure / banner ----------- */
.page-banner {
  padding: 160px 0 var(--space-lg) 0;
  background: linear-gradient(180deg, var(--sable) 0%, var(--blanc) 100%);
}
.page-banner h1 { margin-bottom: var(--space-sm); }
.page-banner p { font-size: 1.2rem; color: var(--gris-fonce); max-width: 60ch; }

/* ----------- Mentions légales / contenu texte ----------- */
.text-content { max-width: 760px; margin: 0 auto; padding: var(--space-lg) 0; }
.text-content h2 { margin-top: var(--space-lg); border-bottom: 1px solid var(--gris-tres-clair); padding-bottom: 0.5rem; }
.text-content h2:first-child { margin-top: 0; }
.text-content p, .text-content li { color: var(--gris-fonce); }
.text-content a { color: var(--bleu-acier); border-bottom: 1px solid var(--bleu-acier); }