@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,700;1,9..40,300;1,9..40,700&display=swap');

:root {
  --ardoise:    #232426;
  --bleu:       #405ba5;
  --gris-clair: #d8e0e7;
  --marine:     #2c3342;
  --gris-fonce: #5c6a7d;
  --white:      #ffffff;
  --bg:         #f5f7f9;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', Arial, sans-serif;
  font-size: 16px;
  color: var(--ardoise);
  background: var(--white);
  line-height: 1.6;
}

/* ===== NAV ===== */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 40px;
  height: 64px;
  background: var(--ardoise);
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.nav-brand { display: flex; align-items: center; text-decoration: none; }
.nav-brand img { height: 48px; filter: brightness(0) invert(1); opacity: 0.88; }

nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

nav ul a {
  position: relative;
  display: inline-block;
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.03em;
  white-space: nowrap;
  padding: 6px 14px;
  transition: color 0.2s;
}

nav ul a::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--bleu);
  transform: scaleX(0);
  transition: transform 0.22s ease;
}

nav ul a:hover { color: var(--white); }
nav ul a:hover::after { transform: scaleX(1); }

nav ul li:last-child {
  margin-left: 14px;
  padding-left: 14px;
  border-left: 1px solid rgba(255,255,255,0.1);
}

.nav-cta {
  color: var(--white);
  background: var(--bleu);
  border-radius: 3px;
  padding: 8px 20px;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: background 0.2s;
}

.nav-cta::after { display: none; }

.nav-cta:hover {
  background: #3452a8;
  color: var(--white);
}

/* Hamburger toggle — hidden on desktop */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: rgba(255,255,255,0.8);
  font-size: 26px;
  cursor: pointer;
  padding: 6px 4px;
  margin-left: auto;
  line-height: 1;
}

.nav-icon-close { display: none; }
nav.nav-open .nav-icon-open { display: none; }
nav.nav-open .nav-icon-close { display: inline-block; }

/* ===== HERO ===== */
#hero {
  background: linear-gradient(160deg, var(--ardoise) 0%, var(--marine) 100%);
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
  position: relative;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 55% 45%, rgba(64,91,165,0.18) 0%, transparent 60%);
  pointer-events: none;
}

#hero img {
  height: 130px;
  margin-bottom: 36px;
  filter: brightness(0) invert(1);
  opacity: 0.88;
  position: relative;
}

#hero h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 400;
  color: var(--white);
  letter-spacing: 0.14em;
  margin-bottom: 16px;
  position: relative;
}

#hero .tagline {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: rgba(255,255,255,0.6);
  max-width: 520px;
  font-weight: 300;
  letter-spacing: 0.04em;
  position: relative;
}

#hero .confidential {
  display: inline-block;
  margin-top: 28px;
  font-size: 10px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,0.12);
  padding: 4px 14px;
  border-radius: 2px;
  position: relative;
}

/* ===== WRAPPERS ===== */
.full-bg { padding: 0; }

.full-bg > section {
  width: min(1440px, calc(100% - clamp(48px, 6vw, 120px)));
  margin: 0 auto;
  padding: 72px 0;
}

.section-wrap {
  width: min(1440px, calc(100% - clamp(48px, 6vw, 120px)));
  margin: 0 auto;
  padding: 72px 0;
}

.bg-white { background: var(--white); }
.bg-light  { background: var(--bg); }

/* ===== SECTION TITLES ===== */
h2.section-title {
  font-family: 'DM Serif Display', serif;
  font-size: 1.9rem;
  font-weight: 400;
  color: var(--ardoise);
  margin-bottom: 6px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--bleu);
  display: inline-block;
  letter-spacing: 0.01em;
}

.section-intro {
  color: var(--gris-fonce);
  margin-top: 14px;
  margin-bottom: 32px;
  max-width: 680px;
  font-size: 0.97rem;
  font-weight: 300;
}

/* ===== EXECUTIVE SUMMARY ===== */
.summary-box {
  border-left: 3px solid var(--bleu);
  padding: 20px 24px;
  font-size: 1rem;
  margin-bottom: 16px;
  background: var(--bg);
}

.prop-valeur {
  background: var(--gris-clair);
  padding: 20px 24px;
  color: var(--ardoise);
  font-size: 0.96rem;
  font-weight: 300;
}

/* ===== ÉQUIPE ===== */
.team-card {
  background: var(--white);
  border: 1px solid var(--gris-clair);
  padding: 28px 32px;
  border-top: 3px solid var(--bleu);
}

.team-card h3 {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--bleu);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.team-card ul {
  padding-left: 20px;
  color: var(--gris-fonce);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px 32px;
  font-size: 0.93rem;
  font-weight: 300;
}

/* ===== PROBLÉMATIQUE ===== */
.highlight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.highlight-card {
  background: var(--white);
  border: 1px solid var(--gris-clair);
  border-top: 2px solid var(--gris-clair);
  padding: 20px;
  font-size: 0.93rem;
  color: var(--gris-fonce);
  font-weight: 300;
}

/* ===== SOLUTION (piliers) ===== */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 28px;
}

.pillar-card {
  background: var(--white);
  border: 1px solid var(--gris-clair);
  padding: 26px 22px;
  transition: border-color 0.2s;
}

.pillar-card:hover { border-color: var(--bleu); }

.pillar-number {
  display: inline-block;
  background: var(--bleu);
  color: white;
  font-weight: 700;
  font-size: 0.75rem;
  width: 26px; height: 26px;
  text-align: center;
  line-height: 26px;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.pillar-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ardoise);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.pillar-card p, .pillar-card li {
  font-size: 0.9rem;
  color: var(--gris-fonce);
  font-weight: 300;
}

.pillar-card ul { padding-left: 16px; }
.pillar-card li { margin-bottom: 4px; }
.pillar-card .sub-label { font-weight: 700; color: var(--ardoise); }

/* ===== MARCHÉ ===== */
.market-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 28px;
}

.market-col {
  background: var(--white);
  border: 1px solid var(--gris-clair);
  padding: 24px;
}

.market-col h3 {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--white);
  background: var(--ardoise);
  margin: -24px -24px 18px;
  padding: 10px 24px;
}

.market-col ul { padding-left: 16px; }
.market-col li {
  font-size: 0.93rem;
  color: var(--gris-fonce);
  margin-bottom: 6px;
  font-weight: 300;
}

/* ===== POURQUOI ===== */
.why-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.why-card {
  background: var(--white);
  border: 1px solid var(--gris-clair);
  border-left: 3px solid var(--bleu);
  padding: 20px 22px;
}

.why-card strong {
  display: block;
  color: var(--ardoise);
  margin-bottom: 5px;
  font-size: 0.93rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.why-card p {
  font-size: 0.9rem;
  color: var(--gris-fonce);
  font-weight: 300;
}

/* ===== SERVICES (3 colonnes) ===== */
.diagram { margin-top: 28px; }

.columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
  margin-bottom: 32px;
}

.column-card {
  background: var(--white);
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 20px rgba(35,36,38,0.08);
  overflow: hidden;
}

.card-header {
  padding: 20px 22px;
  background: var(--ardoise);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.card-header i { font-size: 20px; flex-shrink: 0; letter-spacing: 0; }

.column-intro {
  padding: 16px 22px;
  text-align: center;
  font-size: 14px;
  font-style: italic;
  font-weight: 300;
  color: var(--gris-fonce);
  line-height: 1.55;
  background: var(--bg);
  border-bottom: 1px solid var(--gris-clair);
}

.card-content { padding: 20px 22px 24px; flex: 1; }

/* Solution packs — clean separator list */
.solution-pack {
  padding: 14px 0;
  margin-bottom: 0;
  background: none;
  border: none;
  border-bottom: 1px solid var(--gris-clair);
}

.solution-pack:last-child { border-bottom: none; padding-bottom: 0; }

.solution-pack.residence,
.solution-pack.hotel,
.solution-pack.enterprise,
.solution-pack.institutional {
  border-color: var(--gris-clair);
  background: none;
  border-left: none;
  padding-left: 0;
}

.pack-title {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ardoise);
  display: flex;
  align-items: center;
  gap: 7px;
}

.pack-title i { font-size: 16px; flex-shrink: 0; letter-spacing: 0; color: var(--bleu); }

.solution-pack p  { margin: 0 0 6px; font-size: 13.5px; font-weight: 300; color: var(--gris-fonce); line-height: 1.45; }
.solution-pack ul { padding-left: 14px; font-size: 13px; font-weight: 300; color: var(--gris-fonce); line-height: 1.75; }

/* Audit items */
.audit-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--gris-clair);
}

.audit-item:last-child { border-bottom: none; }

.icon-circle {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: var(--bleu);
  color: var(--white);
  font-size: 20px;
  border-radius: 2px;
  margin-top: 2px;
}

.audit-item h3 { margin: 0 0 3px; font-size: 14px; font-weight: 700; color: var(--ardoise); }
.audit-item p  { margin: 0; font-size: 13px; font-weight: 300; color: var(--gris-fonce); line-height: 1.45; }

/* Security focus — dark strip */
.security-focus {
  background: var(--ardoise);
  padding: 36px 32px 32px;
  border-top: 3px solid var(--bleu);
}

.focus-title {
  text-align: center;
  font-family: 'DM Serif Display', serif;
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--white);
  margin-bottom: 24px;
  letter-spacing: 0.01em;
}

.focus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.focus-box {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 20px 22px;
}

.focus-box h3 {
  margin: 0 0 4px;
  text-align: center;
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.focus-box > p {
  margin: 0 0 18px;
  text-align: center;
  font-weight: 300;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

.focus-icons {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  text-align: center;
}

.focus-icon {
  font-size: 12px;
  font-weight: 300;
  color: rgba(255,255,255,0.55);
  line-height: 1.35;
}

.bubble {
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  margin: 0 auto 6px;
  border-radius: 2px;
  background: rgba(64,91,165,0.35);
  border: 1px solid rgba(64,91,165,0.6);
  color: var(--white);
  font-size: 18px;
}

.objective {
  width: fit-content;
  margin: 24px auto 12px;
  padding: 9px 32px;
  background: var(--bleu);
  color: var(--white);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 2px;
}

.final-line {
  margin: 0;
  text-align: center;
  font-size: 14px;
  font-weight: 300;
  font-style: italic;
  color: rgba(255,255,255,0.5);
}

/* ===== FOOTER ===== */
footer {
  background: var(--ardoise);
  color: rgba(255,255,255,0.55);
  text-align: center;
  padding: 40px 24px;
  font-size: 0.88rem;
  font-weight: 300;
  letter-spacing: 0.02em;
}

footer img {
  height: 52px;
  filter: brightness(0) invert(1);
  opacity: 0.75;
  display: block;
  margin: 0 auto 16px;
}

footer a { color: rgba(255,255,255,0.75); text-decoration: none; }
footer a:hover { color: var(--white); }

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

/* --- Narrow desktop (3 → 2 columns services) --- */
@media (max-width: 1100px) {
  .columns {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .focus-grid {
    grid-template-columns: 1fr;
  }
  .focus-icons {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* --- Tablet (2 → 1 column services) --- */
@media (max-width: 768px) {
  nav {
    flex-wrap: wrap;
    height: auto;
    padding: 0 20px;
    align-items: stretch;
  }

  .nav-brand { height: 58px; align-items: center; }

  .nav-toggle { display: flex; align-items: center; height: 58px; }

  nav ul {
    display: none;
    width: 100%;
    flex-direction: column;
    margin-left: 0;
    gap: 0;
    padding: 8px 0 16px;
    border-top: 1px solid rgba(255,255,255,0.08);
  }

  nav.nav-open ul { display: flex; }

  nav ul a {
    display: block;
    padding: 11px 14px;
    font-size: 15px;
  }

  nav ul a::after { display: none; }

  nav ul li:last-child {
    margin-left: 0;
    padding-left: 0;
    border-left: none;
    margin-top: 8px;
    padding: 0 14px;
  }

  .nav-cta {
    display: block;
    text-align: center;
    padding: 11px 20px;
  }

  .full-bg > section,
  .section-wrap { width: calc(100% - 48px); padding: 48px 0; }

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

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

  .team-card ul { grid-template-columns: 1fr; }

  .focus-icons { grid-template-columns: repeat(3, 1fr); }

  .pillar-card { padding: 20px 18px; }

  .why-card { padding: 16px 18px; }
}

/* --- Mobile --- */
@media (max-width: 520px) {
  nav { padding: 0 16px; }

  #hero { min-height: 50vh; padding: 48px 20px; }
  #hero img { height: 90px; margin-bottom: 24px; }

  .full-bg > section,
  .section-wrap { width: calc(100% - 32px); padding: 36px 0; }

  .summary-box,
  .prop-valeur { padding: 16px 18px; }

  .team-card { padding: 18px 16px; }
  .team-card ul { gap: 5px 0; }

  .pillar-card { padding: 16px 14px; }

  .why-card { padding: 14px 16px; }

  .market-col { padding: 16px; }
  .market-col h3 { margin: -16px -16px 14px; padding: 10px 16px; }

  .security-focus { padding: 28px 20px 24px; }

  .focus-icons { grid-template-columns: repeat(3, 1fr); }

  .objective { padding: 7px 18px; font-size: 11px; }
}