/* ===== Fonts (self-hosted) ===== */
@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url('../fonts/montserrat-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Poppins';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/poppins-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Poppins';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/poppins-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Poppins';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/poppins-700.woff2') format('woff2');
}

/* ===== Charte graphique ===== */
:root {
  --color-primary: #D32F2F;
  --color-primary-dark: #B71C1C;
  --color-white: #FFFFFF;
  --color-steel: #6C757D;
  --color-steel-light: #EEF0F1;
  --color-black: #212529;

  --font-heading: 'Poppins', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Montserrat', 'Segoe UI', Arial, sans-serif;

  --container-width: 1160px;
  --radius: 6px;
  --shadow: 0 2px 10px rgba(33, 37, 41, 0.08);
  --shadow-hover: 0 8px 24px rgba(33, 37, 41, 0.14);
}

/* ===== Reset ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--color-black);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
}
button { font-family: inherit; cursor: pointer; }

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid #E5E7E9;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.nav__logo img { height: 40px; width: auto; }
.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav__links a {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-black);
  padding: 8px 2px;
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
}
.nav__links a:hover,
.nav__links a.is-active {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.nav__cta {
  background: var(--color-primary);
  color: var(--color-white) !important;
  padding: 10px 20px;
  border-radius: var(--radius);
  border: none;
  font-family: var(--font-heading);
  font-weight: 600;
}
.nav__cta:hover { background: var(--color-primary-dark); }
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}
.nav__toggle span {
  width: 26px;
  height: 3px;
  background: var(--color-black);
  border-radius: 2px;
}

@media (max-width: 860px) {
  .nav__toggle { display: flex; }
  .nav__links {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    line-height: 3;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border-bottom: 1px solid #E5E7E9;
    box-shadow: var(--shadow);
    max-height: 0;
    overflow: hidden;
    transition: max-height .25s ease;
  }
  .nav__links.is-open { max-height: 420px; }
  .nav__links a { padding: 16px 24px; border-bottom: 1px solid #F0F1F2; border-left: 3px solid transparent; }
  .nav__links a.is-active, .nav__links a:hover { border-left-color: var(--color-primary); border-bottom-color: #F0F1F2; }
  .nav__links .nav__cta { margin: 16px 24px; text-align: center; }
  .nav__links .nav__cto { margin: 16px; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  transition: background .2s, color .2s, border-color .2s, transform .15s;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--color-primary); color: var(--color-white); }
.btn--primary:hover { background: var(--color-primary-dark); }
.btn--outline { background: transparent; color: var(--color-white); border-color: var(--color-white); }
.btn--outline:hover { background: var(--color-white); color: var(--color-black); }
.btn--dark { background: var(--color-black); color: var(--color-white); }
.btn--dark:hover { background: #000; }
.btn--sm { padding: 10px 18px; font-size: 0.85rem; }

/* ===== Hero ===== */
.hero {
  background: linear-gradient(120deg, var(--color-black) 0%, #33383D 100%);
  color: var(--color-white);
  padding: 96px 0 88px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -120px;
  width: 360px;
  height: 360px;
  border: 24px solid var(--color-primary);
  border-radius: 50%;
  opacity: 0.15;
}
.hero__tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(211, 47, 47, 0.12);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: 2.6rem;
  max-width: 720px;
  margin-bottom: 20px;
}
.hero p {
  max-width: 600px;
  color: #D7D9DB;
  font-size: 1.05rem;
  margin-bottom: 32px;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

.page-hero {
  background: var(--color-black);
  color: var(--color-white);
  padding: 64px 0;
}
.page-hero h1 { font-size: 2.1rem; margin-bottom: 10px; }
.page-hero p { color: #C9CCCE; max-width: 640px; }
.breadcrumb {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

/* ===== Sections ===== */
section { padding: 72px 0; }
.section--alt { background: var(--color-steel-light); }
.section__head { max-width: 640px; margin-bottom: 44px; }
.section__eyebrow {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 10px;
  display: block;
}
.section__head h2 { font-size: 2rem; margin-bottom: 12px; }
.section__head p { color: var(--color-steel); }

/* ===== Grids / Cards ===== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}

.card {
  background: var(--color-white);
  border: 1px solid #E7E9EA;
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: box-shadow .2s, transform .2s, border-color .2s;
}
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); border-color: var(--color-primary); }
.card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  background: var(--color-steel-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-primary);
}
.card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.card p { color: var(--color-steel); font-size: 0.95rem; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
@media (max-width: 760px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }
.stat-row .stat b {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.1rem;
  color: var(--color-primary);
}
.stat-row .stat span {
  font-size: 0.85rem;
  color: var(--color-steel);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ===== CTA banner ===== */
.cta-banner {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 56px 0;
  text-align: center;
}
.cta-banner h2 { font-size: 1.8rem; margin-bottom: 12px; }
.cta-banner p { color: #FBE2E2; margin-bottom: 28px; }

/* ===== Tabs (catalogue produits) ===== */
.tabs__nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  border-bottom: 2px solid #E7E9EA;
  margin-bottom: 40px;
}
.tabs__btn {
  background: none;
  border: none;
  padding: 14px 20px;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-steel);
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: color .2s, border-color .2s;
}
.tabs__btn:hover { color: var(--color-black); }
.tabs__btn.is-active { color: var(--color-primary); border-color: var(--color-primary); }
.tabs__panel { display: none; }
.tabs__panel.is-active { display: block; animation: fadein .25s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
@media (max-width: 700px) { .product-grid { grid-template-columns: 1fr; } }

.product-card {
  border: 1px solid #E7E9EA;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-white);
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateY(28px);
  transition: box-shadow .3s ease, transform .5s cubic-bezier(.2,.7,.2,1), opacity .5s ease, border-color .3s;
}
.product-card.is-visible { opacity: 1; transform: translateY(0); }
.product-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
  border-color: var(--color-primary);
}
.product-card__visual {
  position: relative;
  background: linear-gradient(135deg, var(--color-steel-light) 0%, #E3E6E8 100%);
  border-bottom: 3px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  height: 260px;
  padding: 28px 0;
}
.product-card__visual img {
  transition: transform .5s cubic-bezier(.2,.7,.2,1);
}
.product-card:hover .product-card__visual img { transform: scale(1.08); }

/* Vraie photo produit : remplit tout le cadre, bien visible */
.product-card__visual--photo {
  padding: 0;
}
.product-card__visual--photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Illustration schématique (en attendant une vraie photo) : icône agrandie et centrée */
.product-card__visual--icon img {
  width: 150px;
  height: 150px;
}

.product-card__body { padding: 24px 24px 28px; flex: 1; display: flex; flex-direction: column; }
.product-card__body h4 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}
.product-card__specs {
  font-size: 0.9rem;
  color: var(--color-steel);
  margin: 10px 0 6px;
}
.product-card__specs li { margin-bottom: 4px; padding-left: 14px; position: relative; }
.product-card__specs li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}
.product-card__note {
  font-size: 0.9rem;
  color: var(--color-steel);
  margin-bottom: 6px;
}

/* ===== Forms ===== */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.field--full { grid-column: 1 / -1; }
.field label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
}
.field input,
.field select,
.field textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 12px 14px;
  border: 1px solid #D7DADC;
  border-radius: var(--radius);
  background: var(--color-white);
  color: var(--color-black);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.12);
}
.field textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: 0.85rem; color: var(--color-steel); margin-top: 14px; }
.form-status {
  margin-top: 16px;
  font-size: 0.9rem;
  font-weight: 600;
  display: none;
}
.form-status.is-visible { display: block; }

/* ===== Contact info blocks ===== */
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-info__item { display: flex; gap: 16px; align-items: flex-start; }
.contact-info__icon {
  width: 44px; height: 44px; flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-steel-light);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-weight: 700;
}
.contact-info__item h4 { font-size: 1rem; margin-bottom: 4px; }
.contact-info__item p { color: var(--color-steel); font-size: 0.92rem; }

/* ===== About / values ===== */
.timeline { border-left: 2px solid #E7E9EA; padding-left: 28px; display: flex; flex-direction: column; gap: 30px; }
.timeline__item { position: relative; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -34px; top: 4px;
  width: 12px; height: 12px;
  background: var(--color-primary);
  border-radius: 50%;
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-primary);
}
.timeline__item h4 { font-family: var(--font-heading); font-size: 0.95rem; color: var(--color-primary); margin-bottom: 4px; }

/* ===== Footer ===== */
.site-footer { background: var(--color-black); color: #C9CCCE; padding: 60px 0 28px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 32px;
  margin-bottom: 40px;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h5 {
  font-family: var(--font-heading);
  color: var(--color-white);
  font-size: 0.95rem;
  margin-bottom: 18px;
}
.footer-grid p { font-size: 0.9rem; margin-bottom: 14px; color: #ABAFB2; }
.footer-grid ul li { margin-bottom: 10px; }
.footer-grid ul a { font-size: 0.9rem; color: #C9CCCE; transition: color .2s; }
.footer-grid ul a:hover { color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid #383D42;
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.82rem;
  color: #8A8E91;
}

/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-lg { margin-top: 48px; }