/* =========================================================
   STRATE — Impression 3D
   Palette : blanc / encre / rouge filament
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --white:      #FFFFFF;
  --off-white:  #F7F5F3;
  --ink:        #191919;
  --steel:      #6B6B6B;
  --line:       #E6E2DD;
  --red:        #D7263D;
  --red-dark:   #A31621;
  --red-tint:   #FDECEC;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --radius: 2px;
  --container: 1180px;
}

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

body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul{ margin: 0; padding: 0; list-style: none; }

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

h1, h2, h3{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

h1{ font-size: clamp(2.4rem, 5vw, 4rem); }
h2{ font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3{ font-size: 1.15rem; }

p{ margin: 0 0 16px; color: var(--steel); }

.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--red);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.eyebrow::before{ content: "//"; color: var(--ink); opacity: 0.35; }

.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  border: 1.5px solid var(--ink);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.btn:hover{ background: var(--ink); color: var(--white); }

.btn--primary{
  background: var(--red);
  border-color: var(--red);
  color: var(--white);
}
.btn--primary:hover{
  background: var(--red-dark);
  border-color: var(--red-dark);
}

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  max-width: var(--container);
  margin: 0 auto;
}

.logo{
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}
.logo .bars{ display: flex; flex-direction: column; gap: 2px; }
.logo .bars span{ width: 18px; height: 3px; background: var(--red); }
.logo .bars span:nth-child(2){ width: 12px; }
.logo .bars span:nth-child(3){ width: 18px; }

nav.main-nav{ display: flex; align-items: center; gap: 4px; }

.main-nav > ul{ display: flex; align-items: center; gap: 2px; }

.nav-link{
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 0.83rem;
  letter-spacing: 0.01em;
  border-radius: var(--radius);
  transition: color .15s ease;
  white-space: nowrap;
}
.nav-link:hover{ color: var(--red); }
.nav-link.is-active{ color: var(--red); }

.has-dropdown{ position: relative; }
.has-dropdown > .nav-link{ display: flex; align-items: center; gap: 6px; cursor: pointer; }
.has-dropdown > .nav-link .caret{
  font-size: 0.65rem;
  transition: transform .18s ease;
}
.has-dropdown.is-open > .nav-link .caret{ transform: rotate(180deg); }

.dropdown{
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 240px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 2px solid var(--red);
  box-shadow: 0 12px 24px rgba(0,0,0,0.06);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .16s ease, transform .16s ease, visibility .16s ease;
}
.has-dropdown.is-open .dropdown{
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown a{
  display: block;
  padding: 10px 12px;
  font-size: 0.92rem;
  border-radius: var(--radius);
}
.dropdown a:hover{ background: var(--red-tint); color: var(--red-dark); }

.nav-toggle{
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span{ width: 22px; height: 2px; background: var(--ink); }

/* ---------- Hero + signature layer stack ---------- */
.hero{
  padding: 88px 0 72px;
  overflow: hidden;
}
.hero-grid{
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.hero p.lead{
  font-size: 1.08rem;
  max-width: 46ch;
}
.hero-actions{ display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }

.layer-stack{
  --n: 9;
  display: flex;
  flex-direction: column-reverse;
  gap: 6px;
}
.layer-stack .layer{
  height: 20px;
  background: var(--off-white);
  border: 1px solid var(--line);
  border-radius: 1px;
  transform: scaleX(0);
  transform-origin: left;
  animation: print-layer 0.5s ease forwards;
}
.layer-stack .layer:nth-child(odd){ background: var(--red-tint); border-color: var(--red); }
.layer-stack .layer:nth-child(1){ animation-delay: .05s; }
.layer-stack .layer:nth-child(2){ animation-delay: .15s; }
.layer-stack .layer:nth-child(3){ animation-delay: .25s; }
.layer-stack .layer:nth-child(4){ animation-delay: .35s; }
.layer-stack .layer:nth-child(5){ animation-delay: .45s; }
.layer-stack .layer:nth-child(6){ animation-delay: .55s; }
.layer-stack .layer:nth-child(7){ animation-delay: .65s; }
.layer-stack .layer:nth-child(8){ animation-delay: .75s; }
.layer-stack .layer:nth-child(9){ animation-delay: .85s; }
.layer-stack .layer:last-child{ background: var(--red); border-color: var(--red-dark); }

@keyframes print-layer{
  to{ transform: scaleX(1); }
}
@media (prefers-reduced-motion: reduce){
  .layer-stack .layer{ animation: none; transform: scaleX(1); }
}

/* ---------- Sections génériques ---------- */
section{ padding: 64px 0; }
.section-alt{ background: var(--off-white); }
.section-head{ max-width: 640px; margin-bottom: 40px; }

/* ---------- Cartes catégories (Particulier / Pro / Ressources) ---------- */
.card-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  background: var(--white);
  transition: border-color .18s ease, transform .18s ease;
}
.card:hover{ border-color: var(--red); transform: translateY(-3px); }
.card .card-num{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--red);
  margin-bottom: 12px;
  display: block;
}
.card ul{ margin: 18px 0 22px; }
.card li{
  padding: 8px 0;
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
  color: var(--ink);
}
.card li:first-child{ border-top: none; }
.card a.card-link{
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--red);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card a.card-link:hover{ color: var(--red-dark); }

/* ---------- Présentation générale ---------- */
.presentation{
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}
.presentation .stat-row{
  display: flex;
  gap: 32px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.stat{ font-family: var(--font-mono); }
.stat .num{ font-size: 1.6rem; color: var(--red); font-weight: 500; }
.stat .lbl{ font-size: 0.78rem; color: var(--steel); text-transform: uppercase; }

/* ---------- Page interieure (particulier/pro/ressources) ---------- */
.page-hero{
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--line);
}
.breadcrumb{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--steel);
  margin-bottom: 18px;
}
.breadcrumb a:hover{ color: var(--red); }

.detail-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.detail-block{
  padding: 26px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  background: var(--white);
}
.detail-block h3{ margin-bottom: 10px; }

/* ---------- Formulaire contact ---------- */
.contact-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.field{ margin-bottom: 18px; }
.field label{
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.field input,
.field textarea,
.field select{
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--off-white);
  color: var(--ink);
}
.field input:focus,
.field textarea:focus,
.field select:focus{
  outline: 2px solid var(--red);
  outline-offset: 1px;
  background: var(--white);
}
.field textarea{ resize: vertical; min-height: 130px; }

.contact-info-list{ margin-top: 20px; }
.contact-info-list li{
  display: flex;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.contact-info-list li:first-child{ border-top: none; }
.contact-info-list .ci-label{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--red);
  min-width: 90px;
  text-transform: uppercase;
  padding-top: 2px;
}
.contact-info-list a:hover{ color: var(--red); }

.socials{ display: flex; gap: 12px; margin-top: 24px; }
.socials a{
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color .15s ease, color .15s ease;
}
.socials a:hover{ border-color: var(--red); color: var(--red); }

.form-note{
  font-size: 0.82rem;
  color: var(--steel);
  margin-top: 4px;
}

/* ---------- Footer ---------- */
.site-footer{
  background: var(--ink);
  color: var(--off-white);
  padding: 48px 0 24px;
}
.footer-grid{
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-grid .logo{ color: var(--white); }
.footer-links{ display: flex; gap: 40px; flex-wrap: wrap; }
.footer-col h4{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--red);
  text-transform: uppercase;
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}
.footer-col a, .footer-col span{
  display: block;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
  padding: 5px 0;
}
.footer-col a:hover{ color: var(--white); }
.footer-bottom{
  display: flex;
  justify-content: space-between;
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .hero-grid, .presentation, .contact-grid{ grid-template-columns: 1fr; }
  .card-grid{ grid-template-columns: 1fr; }
  .detail-grid{ grid-template-columns: 1fr; }

  .nav-toggle{ display: flex; }
  nav.main-nav{
    position: fixed;
    inset: 68px 0 0 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    transform: translateX(100%);
    transition: transform .22s ease;
    overflow-y: auto;
  }
  nav.main-nav.is-open{ transform: translateX(0); }
  .main-nav > ul{ flex-direction: column; align-items: stretch; gap: 0; }
  .dropdown{
    position: static;
    opacity: 1; visibility: visible; transform: none;
    box-shadow: none;
    display: none;
    border-top: 1px solid var(--line);
    margin: 4px 0 8px;
  }
  .has-dropdown.is-open .dropdown{ display: block; }
}