/* =============================================
   MPULSE — Site Vitrine
   Palette : bleu marine, gris, blanc
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* --- Variables --- */
:root {
  --navy:       #0d2137;
  --navy-light: #1a3a5c;
  --accent:     #2a6496;
  --accent-hover: #1f4e75;
  --grey:       #6c757d;
  --grey-light: #f4f6f8;
  --border:     #dee2e6;
  --text:       #2c3e50;
  --white:      #ffffff;
  --font:       'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width:  1140px;
  --transition: 0.25s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

/* =============================================
   NAVIGATION
   ============================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav__logo {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--white);
  text-transform: uppercase;
}

.nav__logo span {
  color: #5ba3d9;
}

.nav__links {
  display: flex;
  gap: 36px;
}

.nav__links a {
  color: rgba(255,255,255,0.75);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color var(--transition);
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--white);
}

/* Hamburger (mobile) */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
}

/* Mobile menu */
.nav__mobile {
  display: none;
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.08);
}

.nav__mobile.open {
  display: block;
}

.nav__mobile a {
  display: block;
  padding: 14px 24px;
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: color var(--transition), background var(--transition);
}

.nav__mobile a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.05);
}

/* Sélecteur de langue */
.nav__lang {
  display: flex;
  gap: 4px;
  align-items: center;
  margin-left: 24px;
}

.nav__lang button {
  background: none;
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.6);
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 4px 8px;
  cursor: pointer;
  transition: all var(--transition);
  line-height: 1;
}

.nav__lang button:hover {
  color: var(--white);
  border-color: rgba(255,255,255,0.6);
}

.nav__lang button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}

@media (max-width: 640px) {
  .nav__lang {
    margin-left: 12px;
  }
  .nav__lang button {
    padding: 3px 6px;
    font-size: 0.68rem;
  }
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  background: var(--navy);
  color: var(--white);
  overflow: hidden;
}

.hero__image {
  position: absolute;
  inset: 0;
  background-image: url('https://images.pexels.com/photos/20188726/pexels-photo-20188726.jpeg?auto=compress&cs=tinysrgb&w=1920&q=80');
  background-size: cover;
  background-position: center;
  opacity: 0.42;
}

.hero__content {
  position: relative;
  padding: 110px 0 100px;
  max-width: 720px;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #5ba3d9;
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 22px;
  letter-spacing: -0.01em;
}

.hero__subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.72);
  margin-bottom: 40px;
  max-width: 580px;
  line-height: 1.75;
  font-weight: 300;
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.45);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.06);
}

/* =============================================
   SECTIONS
   ============================================= */
.section {
  padding: 88px 0;
}

.section--grey {
  background: var(--grey-light);
}

.section--navy {
  background: var(--navy);
  color: var(--white);
}

.section__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section--navy .section__label {
  color: #5ba3d9;
}

.section__title {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section__intro {
  font-size: 1.05rem;
  color: var(--grey);
  max-width: 620px;
  line-height: 1.75;
}

.section--navy .section__intro {
  color: rgba(255,255,255,0.65);
}

.section__header {
  margin-bottom: 56px;
}

/* =============================================
   PILLARS / CARDS
   ============================================= */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2px;
  background: var(--border);
}

.pillar {
  background: var(--white);
  padding: 40px 32px;
}

.section--grey .pillar {
  background: var(--grey-light);
}

.pillar__icon {
  width: 44px;
  height: 44px;
  margin-bottom: 20px;
  color: var(--accent);
}

.pillar__title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pillar__text {
  font-size: 0.9rem;
  color: var(--grey);
  line-height: 1.65;
}

/* =============================================
   SERVICE LIST
   ============================================= */
.service-group {
  margin-bottom: 56px;
}

.service-group__title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0;
}

.service-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--text);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.service-list li::before {
  content: '';
  display: block;
  min-width: 6px;
  height: 6px;
  margin-top: 8px;
  background: var(--accent);
  border-radius: 50%;
}

/* Technical support highlight */
.highlight-box {
  background: var(--navy);
  color: var(--white);
  padding: 40px 44px;
  border-left: 4px solid #5ba3d9;
  margin-top: 48px;
}

.highlight-box__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #5ba3d9;
  margin-bottom: 12px;
}

.highlight-box__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.highlight-box__text {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.72);
  line-height: 1.75;
}

/* =============================================
   MARKETS
   ============================================= */
.markets-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.market-card {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  color: var(--white);
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.market-card__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.38;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.market-card:hover .market-card__bg {
  opacity: 0.52;
  transform: scale(1.04);
}

.market-card__body {
  position: relative;
  padding: 28px 28px 32px;
  background: linear-gradient(to top, rgba(13,33,55,0.95) 0%, rgba(13,33,55,0.4) 100%);
}

.market-card__icon {
  width: 40px;
  height: 40px;
  margin-bottom: 14px;
  color: #5ba3d9;
}

.market-card__number {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: #5ba3d9;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.market-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--white);
}

.market-card__text {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.72);
  line-height: 1.65;
}

/* Regions */
.regions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2px;
  background: rgba(255,255,255,0.1);
  margin-top: 56px;
}

.region {
  background: var(--navy-light);
  padding: 32px 28px;
}

.region__flag {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

.region__title {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--white);
}

.region__text {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
}

/* =============================================
   ABOUT
   ============================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image {
  aspect-ratio: 4/3;
  background: var(--grey-light);
  position: relative;
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-image__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy-light);
  color: rgba(255,255,255,0.3);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.about-text p {
  margin-bottom: 20px;
  color: var(--grey);
  line-height: 1.8;
}

.about-quote {
  border-left: 3px solid var(--accent);
  padding: 16px 24px;
  margin: 32px 0;
  background: var(--grey-light);
}

.about-quote p {
  font-size: 1.05rem;
  font-style: italic;
  color: var(--text);
  font-weight: 500;
  margin: 0;
}

.languages {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.language {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
}

.language__flag {
  font-size: 1.2rem;
}

/* =============================================
   CONTACT
   ============================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-info__icon {
  width: 20px;
  min-width: 20px;
  margin-top: 2px;
  color: var(--accent);
}

.contact-info__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey);
  margin-bottom: 4px;
}

.contact-info__value {
  font-size: 0.95rem;
  color: var(--text);
}

.contact-info__value a {
  color: var(--accent);
  transition: color var(--transition);
}

.contact-info__value a:hover {
  color: var(--accent-hover);
}

/* Form */
.form__group {
  margin-bottom: 20px;
}

.form__label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--grey);
  margin-bottom: 8px;
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  background: var(--white);
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--text);
  transition: border-color var(--transition);
  border-radius: 0;
  appearance: none;
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form__textarea {
  min-height: 140px;
  resize: vertical;
}

.form__note {
  font-size: 0.78rem;
  color: var(--grey);
  margin-top: 10px;
}

/* =============================================
   PAGE HEADER (pages intérieures)
   ============================================= */
.page-header {
  position: relative;
  background: var(--navy);
  color: var(--white);
  min-height: 400px;
  display: flex;
  align-items: center;
  padding: 80px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('https://images.pexels.com/photos/20188726/pexels-photo-20188726.jpeg?auto=compress&cs=tinysrgb&w=1920&q=80');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  opacity: 0.32;
}

.page-header .container {
  position: relative;
  width: 100%;
}

.page-header__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #5ba3d9;
  margin-bottom: 10px;
}

.page-header__title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.page-header__subtitle {
  font-size: 1rem;
  color: rgba(255,255,255,0.65);
  max-width: 560px;
  font-weight: 300;
  line-height: 1.7;
}

/* =============================================
   CTA SECTION
   ============================================= */
.cta-section {
  background: var(--accent);
  padding: 72px 0;
  text-align: center;
  color: var(--white);
}

.cta-section__title {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 700;
  margin-bottom: 20px;
}

.cta-section__text {
  font-size: 1rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 32px;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,0.5);
  padding: 48px 0 32px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer__logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 10px;
}

.footer__logo span { color: #5ba3d9; }

.footer__tagline {
  font-size: 0.82rem;
  line-height: 1.6;
}

.footer__heading {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin-bottom: 16px;
}

.footer__links a {
  display: block;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  margin-bottom: 8px;
  transition: color var(--transition);
}

.footer__links a:hover { color: rgba(255,255,255,0.85); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer__copy {
  font-size: 0.8rem;
}

.footer__linkedin a {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--transition);
}

.footer__linkedin a:hover { color: rgba(255,255,255,0.85); }

/* =============================================
   HOME — Services 2 colonnes
   ============================================= */
.home-services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.home-services-img {
  position: sticky;
  top: 88px;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.home-services-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* HOME — Markets mosaïque */
.home-markets-mosaic {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 48px;
}

.home-market-thumb {
  position: relative;
  display: block;
  aspect-ratio: 3/2;
  overflow: hidden;
  background: var(--navy-light);
}

.home-market-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.home-market-thumb:hover img {
  opacity: 0.7;
  transform: scale(1.05);
}

.home-market-thumb span {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 16px;
  background: linear-gradient(to top, rgba(13,33,55,0.9), transparent);
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* =============================================
   UTILITIES
   ============================================= */
.divider {
  width: 48px;
  height: 3px;
  background: var(--accent);
  margin: 20px 0 36px;
}

.section--navy .divider {
  background: #5ba3d9;
}

.text-muted { color: var(--grey); }
.mt-40 { margin-top: 40px; }
.mt-56 { margin-top: 56px; }

/* =============================================
   SPA TRANSITION
   ============================================= */
#main {
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.22s ease, transform 0.22s ease;
}

#main.main--visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   CONTACT PAGE
   ============================================= */
.contact-section { padding: 88px 0; }

.form-success {
  display: none;
  background: #e8f5e9;
  border-left: 4px solid #2e7d32;
  padding: 20px 24px;
  margin-top: 24px;
  font-size: 0.95rem;
  color: #1b5e20;
}

/* =============================================
   RESPONSIVE
   ============================================= */

/* --- Tablette (≤ 900px) --- */
@media (max-width: 900px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }

  .section { padding: 72px 0; }

  .page-header {
    min-height: 320px;
    padding: 64px 0;
  }

  .markets-grid {
    grid-template-columns: 1fr;
  }

  .home-services-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .home-services-img { position: static; }
  .home-markets-mosaic { grid-template-columns: repeat(3, 1fr); }

  .pillars {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --- Mobile (≤ 640px) --- */
@media (max-width: 640px) {
  /* Navigation */
  .nav__links  { display: none; }
  .nav__toggle { display: flex; }

  /* Hero */
  .hero__content {
    padding: 60px 0 52px;
  }
  .hero__subtitle {
    font-size: 1rem;
  }
  .hero .btn {
    display: block;
    width: 100%;
    text-align: center;
    box-sizing: border-box;
  }

  /* Page-header (bandeaux intérieurs) */
  .page-header {
    min-height: 260px;
    padding: 52px 0;
  }
  .page-header__subtitle {
    font-size: 0.92rem;
  }
  .page-header::before { background-attachment: scroll; }

  /* Sections */
  .section { padding: 56px 0; }
  .section__header { margin-bottom: 36px; }

  /* Piliers */
  .pillars {
    grid-template-columns: 1fr;
  }
  .pillar { padding: 28px 20px; }

  /* Services */
  .service-list {
    grid-template-columns: 1fr;
  }
  .service-group { margin-bottom: 40px; }

  /* Highlight box */
  .highlight-box { padding: 28px 20px; }

  /* Markets */
  .markets-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .market-card { min-height: 280px; }
  .market-card__body { padding: 20px 20px 24px; }

  /* About */
  .about-grid { gap: 28px; }
  .about-image { order: -1; }

  /* Home services / markets */
  .home-services-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .home-services-img { position: static; aspect-ratio: 16/9; }
  .home-markets-mosaic { grid-template-columns: 1fr; gap: 8px; }
  .home-market-thumb { aspect-ratio: 16/7; }

  /* Contact */
  .contact-section { padding: 56px 0; }
  .contact-grid { gap: 40px; }

  /* CTA */
  .cta-section { padding: 52px 0; }
  .cta-section .btn {
    display: block;
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
    text-align: center;
    box-sizing: border-box;
  }

  /* Footer */
  .footer__inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* =============================================
   REFERENCES PAGE
   ============================================= */

.refs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.ref-card {
  background: var(--grey-light);
  border-left: 3px solid var(--accent);
  padding: 28px 24px;
}

.ref-card__number {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 12px;
}

.ref-card__industry {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}

.ref-card__text {
  font-size: 0.9rem;
  color: var(--grey);
  line-height: 1.7;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.testimonial {
  background: var(--white);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  padding: 32px 28px;
  margin: 0;
}

.testimonial__text {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text);
  font-style: italic;
}

/* --- Très petit écran (≤ 400px) --- */
@media (max-width: 400px) {
  .container { padding: 0 16px; }

  .hero__content { padding: 48px 0 44px; }

  .page-header { min-height: 210px; padding: 44px 0; }

  .pillar,
  .market-card { padding: 24px 16px; }

  .highlight-box { padding: 24px 16px; }

  .btn { padding: 14px 20px; font-size: 0.82rem; }
}