:root {
  --ink: #071321;
  --ink-soft: #10243a;
  --paper: #f4f7fa;
  --white: #ffffff;
  --muted: #aebdcb;
  --line: rgba(255, 255, 255, 0.16);
  --blue: #1766d2;
  --red: #ef2b32;
  --max: 1240px;
  --header: 86px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.08; }
h1, h2 {
  font-family: "Arial Narrow", "Bahnschrift Condensed", Impact, sans-serif;
  text-transform: uppercase;
  letter-spacing: .025em;
}
h2 { margin-bottom: 0; font-size: clamp(2.3rem, 5vw, 5rem); }
.shell { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.section { padding-block: clamp(76px, 10vw, 140px); }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 1000; background: var(--white); color: var(--ink); padding: 12px 18px; }
.skip-link:focus { top: 16px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }
.kicker, .eyebrow, .footer-label {
  margin-bottom: 20px;
  color: var(--blue);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header);
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.14);
  background: linear-gradient(180deg, rgba(4,13,24,.94), rgba(4,13,24,.52));
  backdrop-filter: blur(12px);
}
.nav-shell { width: min(calc(100% - 48px), var(--max)); height: 100%; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; }
.brand { width: 150px; height: 64px; overflow: hidden; display: flex; align-items: center; justify-content: center; background: var(--white); border-radius: 2px; }
.brand img { width: auto; height: 58px; }
.site-nav { display: flex; align-items: center; gap: 34px; font-size: .86rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.site-nav > a:not(.nav-cta) { position: relative; }
.site-nav > a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -9px; height: 2px; background: var(--red); transition: right .2s ease; }
.site-nav > a:not(.nav-cta):hover::after, .site-nav > a:not(.nav-cta):focus-visible::after { right: 0; }
.nav-cta { padding: 12px 18px; border: 1px solid rgba(255,255,255,.5); }
.menu-toggle { display: none; width: 48px; height: 48px; padding: 12px; border: 0; background: transparent; }
.menu-toggle span:not(.sr-only) { display: block; height: 2px; margin: 5px 0; background: var(--white); }

.hero { position: relative; min-height: 860px; color: var(--white); background: var(--ink); overflow: hidden; display: grid; align-items: center; }
.hero-media, .hero-shade, .hero-grid { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-media { object-fit: cover; object-position: 58% center; opacity: .68; }
.hero-shade { background: linear-gradient(90deg, rgba(2,10,20,.97) 0%, rgba(2,10,20,.78) 43%, rgba(2,10,20,.12) 78%), linear-gradient(0deg, rgba(2,10,20,.72), transparent 46%); }
.hero-grid { opacity: .16; background-image: linear-gradient(rgba(255,255,255,.13) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.13) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg, #000, transparent 72%); }
.hero-content { position: relative; z-index: 2; padding-top: var(--header); }
.eyebrow { color: var(--white); display: flex; gap: 12px; align-items: center; }
.eyebrow span { width: 42px; height: 3px; background: linear-gradient(90deg, var(--blue) 0 44%, var(--white) 44% 56%, var(--red) 56%); }
.hero h1 { max-width: 940px; margin-bottom: 28px; font-size: clamp(3.4rem, 8.1vw, 7.3rem); }
.hero h1 em { color: transparent; font-style: normal; -webkit-text-stroke: 1.5px rgba(255,255,255,.8); }
.hero-copy { max-width: 670px; margin-bottom: 34px; color: #d8e0e7; font-size: clamp(1.05rem, 1.7vw, 1.32rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; padding: 13px 22px; border: 1px solid transparent; font-size: .83rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--red); box-shadow: 0 13px 35px rgba(239,43,50,.25); }
.button-primary:hover { background: #d91f27; }
.button-ghost { color: var(--white); border-color: rgba(255,255,255,.48); background: rgba(255,255,255,.06); }
.hero-facts { display: flex; gap: 0; margin: 70px 0 0; }
.hero-facts div { min-width: 190px; padding: 0 28px; border-left: 1px solid rgba(255,255,255,.3); }
.hero-facts div:first-child { padding-left: 0; border-left: 0; }
.hero-facts dt { font-family: "Arial Narrow", "Bahnschrift Condensed", Impact, sans-serif; font-size: 1.45rem; font-weight: 800; letter-spacing: .03em; text-transform: uppercase; }
.hero-facts dd { margin: 3px 0 0; color: #b8c4cf; font-size: .83rem; }

.intro { display: grid; grid-template-columns: 90px 1.25fr 1fr; gap: clamp(30px, 5vw, 76px); align-items: start; }
.section-index { color: #cfdae4; font-size: 4.6rem; font-weight: 900; line-height: 1; }
.intro h2 { font-size: clamp(2.7rem, 5.2vw, 5.4rem); }
.intro-copy { padding-top: 43px; color: #45586a; font-size: 1.08rem; }
.intro-copy p:last-child { margin-bottom: 0; }

.solutions { color: var(--white); background: var(--ink); }
.section-head { display: grid; grid-template-columns: 1.4fr .7fr; gap: 70px; align-items: end; margin-bottom: 58px; }
.section-head > p { margin-bottom: 7px; color: #aebdcb; }
.solutions .kicker { color: #69a7f4; }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.solution-card { position: relative; min-height: 470px; padding: 38px 34px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.025); }
.solution-card-accent { background: linear-gradient(160deg, rgba(23,102,210,.32), rgba(255,255,255,.02) 60%); }
.card-number { color: #8090a0; font-size: .74rem; font-weight: 800; letter-spacing: .15em; }
.card-icon { margin: 58px 0 26px; color: #68a7f7; font-size: 3.3rem; font-weight: 300; }
.solution-card-accent .card-icon { color: var(--red); }
.solution-card h3 { margin-bottom: 17px; font-size: 1.55rem; text-transform: uppercase; }
.solution-card p { color: #b8c4cf; }
.solution-card ul { margin: 26px 0 0; padding: 22px 0 0; border-top: 1px solid var(--line); list-style: none; color: #dce5ed; font-size: .9rem; }
.solution-card li { margin: 8px 0; }
.solution-card li::before { content: "+"; margin-right: 10px; color: var(--red); }

.method { display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(48px, 8vw, 110px); align-items: center; }
.method-photo { position: relative; }
.method-photo::before { content: ""; position: absolute; left: -18px; top: -18px; width: 42%; height: 55%; border-left: 3px solid var(--blue); border-top: 3px solid var(--blue); }
.method-photo img { position: relative; width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.photo-label { position: absolute; left: 26px; right: 26px; bottom: 26px; padding: 16px 18px; color: #d8e0e7; background: rgba(4,15,27,.9); font-size: .8rem; }
.photo-label span { color: var(--white); display: block; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.method-content h2 { margin-bottom: 42px; }
.steps { margin: 0; padding: 0; list-style: none; }
.steps li { display: grid; grid-template-columns: 55px 1fr; gap: 22px; padding: 21px 0; border-top: 1px solid #ced9e2; }
.steps li:last-child { border-bottom: 1px solid #ced9e2; }
.steps > li > span { color: var(--blue); font-size: .76rem; font-weight: 800; letter-spacing: .12em; }
.steps h3 { margin-bottom: 5px; font-size: 1.04rem; text-transform: uppercase; }
.steps p { margin: 0; color: #566a7c; font-size: .94rem; }

.equipment { display: grid; grid-template-columns: 1.12fr .88fr; min-height: 760px; color: var(--white); background: var(--ink-soft); }
.equipment-media { min-height: 560px; }
.equipment-media img { width: 100%; height: 100%; object-fit: cover; }
.equipment-panel { padding: clamp(65px, 8vw, 120px); align-self: center; }
.equipment-panel h2 { margin-bottom: 30px; }
.equipment-panel > p:not(.kicker) { color: #bbcad6; }
.spec-grid { display: grid; grid-template-columns: 1fr 1fr; margin-top: 44px; border-left: 1px solid var(--line); border-top: 1px solid var(--line); }
.spec-grid div { min-height: 120px; padding: 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.spec-grid strong, .spec-grid span { display: block; }
.spec-grid strong { font-size: 1.02rem; text-transform: uppercase; }
.spec-grid span { margin-top: 8px; color: #95a9ba; font-size: .82rem; }

.coverage { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(50px, 9vw, 140px); align-items: start; }
.coverage h2 { font-size: clamp(2.7rem, 5vw, 5.1rem); }
.coverage-copy { padding-top: 45px; color: #4c6174; }
.locations { display: grid; grid-template-columns: 1fr 1fr; margin-top: 34px; border-top: 1px solid #cdd8e2; }
.locations span { padding: 12px 4px; border-bottom: 1px solid #cdd8e2; color: var(--ink); font-size: .86rem; font-weight: 750; text-transform: uppercase; }

.quote-band { padding: clamp(70px, 9vw, 120px) 0; color: var(--white); background: linear-gradient(115deg, #0c57b3, #071321 58%, #3b1017); }
.quote-band blockquote { max-width: 1060px; margin: 0; font-family: "Arial Narrow", "Bahnschrift Condensed", Impact, sans-serif; font-size: clamp(2.4rem, 5vw, 5.1rem); line-height: 1.08; text-transform: uppercase; }

.contact { color: var(--white); background: #050c15; }
.contact-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(50px, 10vw, 150px); align-items: center; }
.contact h2 { max-width: 770px; margin-bottom: 30px; }
.contact-grid > div > p:not(.kicker) { max-width: 650px; color: #aebdcb; }
.contact-card { padding: 38px; border: 1px solid var(--line); border-top: 4px solid var(--red); background: rgba(255,255,255,.04); }
.contact-card p { margin-bottom: 8px; color: #9fb0bf; }
.contact-card .contact-name { color: var(--white); font-size: 1.25rem; font-weight: 800; text-transform: uppercase; }
.contact-card > a:not(.button) { display: block; margin-top: 9px; font-weight: 750; }
.contact-card .button { width: 100%; margin-top: 30px; }

.site-footer { padding: 60px 0 26px; color: #9fb0bf; background: #03080e; border-top: 1px solid #162432; font-size: .9rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 70px; }
.footer-brand img { width: 145px; height: 102px; object-fit: contain; object-position: center; margin-bottom: 18px; background: var(--white); }
.footer-brand p { max-width: 350px; }
.footer-label { margin-bottom: 16px; color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; margin-top: 52px; padding-top: 23px; border-top: 1px solid #172331; font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }

:focus-visible { outline: 3px solid #7ab3ff; outline-offset: 4px; }

@media (max-width: 1000px) {
  .intro { grid-template-columns: 70px 1fr; }
  .intro-copy { grid-column: 2; padding-top: 0; }
  .solution-grid { grid-template-columns: 1fr; }
  .solution-card { min-height: auto; }
  .card-icon { margin-top: 34px; }
  .method, .equipment, .coverage, .contact-grid { grid-template-columns: 1fr; }
  .equipment-media { min-height: 500px; }
  .section-head { grid-template-columns: 1fr; gap: 24px; }
  .coverage-copy { padding-top: 0; }
}

@media (max-width: 760px) {
  :root { --header: 74px; }
  .shell, .nav-shell { width: min(calc(100% - 32px), var(--max)); }
  .brand { width: 126px; height: 52px; }
  .brand img { width: auto; height: 46px; }
  .menu-toggle { display: block; }
  .site-nav { position: fixed; top: var(--header); left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 18px 16px 24px; background: rgba(4,13,24,.98); border-bottom: 1px solid #263646; }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 15px; }
  .nav-cta { margin-top: 8px; text-align: center; }
  .hero { min-height: 820px; }
  .hero-media { object-position: 61% center; opacity: .45; }
  .hero-shade { background: linear-gradient(180deg, rgba(2,10,20,.78), rgba(2,10,20,.93)); }
  .hero-content { padding-top: 110px; }
  .hero h1 { font-size: clamp(3rem, 15vw, 5rem); }
  .hero-actions .button { width: 100%; }
  .hero-facts { display: grid; grid-template-columns: 1fr; gap: 17px; margin-top: 46px; }
  .hero-facts div, .hero-facts div:first-child { padding: 0 0 0 17px; border-left: 2px solid rgba(255,255,255,.36); }
  .intro { grid-template-columns: 1fr; }
  .section-index { font-size: 3rem; }
  .intro-copy { grid-column: auto; }
  .method-photo img { aspect-ratio: 1 / 1.1; }
  .equipment-panel { padding: 60px 24px; }
  .spec-grid { grid-template-columns: 1fr; }
  .locations { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom { flex-direction: column; gap: 10px; }
}

/* Présentation plein écran : chaque grande section devient une slide sur ordinateur. */
.hero {
  height: 100svh;
  min-height: 100svh;
}
.hero-content {
  max-height: 100svh;
  padding-top: calc(var(--header) + clamp(14px, 3vh, 30px));
  padding-bottom: clamp(18px, 3vh, 34px);
  overflow-y: auto;
  scrollbar-width: none;
}
.hero-content::-webkit-scrollbar { display: none; }
.hero h1 {
  margin-bottom: clamp(14px, 2.6vh, 28px);
  font-size: clamp(2.8rem, min(7.4vw, 10.5vh), 7.3rem);
}
.hero-copy { margin-bottom: clamp(18px, 3vh, 32px); }
.hero-facts { margin-top: clamp(24px, 5vh, 54px); }

@media (min-width: 1001px) {
  html {
    scroll-snap-type: y proximity;
    scroll-padding-top: 0;
  }
  main > section {
    min-height: 100svh;
    scroll-snap-align: start;
  }
  .intro,
  .method,
  .coverage,
  .contact {
    padding-top: calc(var(--header) + clamp(24px, 4vh, 46px));
    padding-bottom: clamp(32px, 5vh, 64px);
    align-items: center;
  }
  .intro-copy,
  .coverage-copy { padding-top: 0; }
  .solutions {
    display: flex;
    align-items: center;
    padding-top: calc(var(--header) + clamp(20px, 3vh, 38px));
    padding-bottom: clamp(28px, 4vh, 52px);
  }
  .solutions > .shell { width: min(calc(100% - 48px), var(--max)); }
  .solutions h2 { font-size: clamp(2.3rem, min(4.7vw, 7vh), 4.5rem); }
  .section-head { margin-bottom: clamp(18px, 2.8vh, 30px); }
  .solution-card {
    min-height: 0;
    padding: clamp(18px, 2.6vh, 26px) 28px;
  }
  .card-icon { margin: clamp(12px, 2.2vh, 20px) 0 clamp(10px, 1.8vh, 16px); font-size: 2.6rem; }
  .solution-card h3 { margin-bottom: 10px; font-size: 1.4rem; }
  .solution-card p { margin-bottom: 0; font-size: .9rem; line-height: 1.45; }
  .solution-card ul { margin-top: clamp(10px, 1.8vh, 16px); padding-top: clamp(9px, 1.5vh, 14px); font-size: .82rem; line-height: 1.3; }
  .solution-card li { margin: 4px 0; }
  .method-photo img { height: min(65vh, 650px); aspect-ratio: auto; }
  .method-content h2 { margin-bottom: clamp(22px, 4vh, 38px); font-size: clamp(2.4rem, min(4.5vw, 7vh), 5rem); }
  .steps li { padding: clamp(11px, 1.8vh, 18px) 0; }
  .equipment {
    height: 100svh;
    min-height: 100svh;
  }
  .equipment-media { min-height: 0; }
  .equipment-panel { padding: calc(var(--header) + 24px) clamp(48px, 7vw, 105px) 34px; }
  .equipment-panel h2 { font-size: clamp(2.35rem, min(4.2vw, 7vh), 4.8rem); }
  .spec-grid { margin-top: clamp(24px, 4vh, 42px); }
  .spec-grid div { min-height: min(13vh, 112px); padding: clamp(16px, 2.5vh, 22px); }
  .quote-band {
    display: flex;
    align-items: center;
    padding-top: calc(var(--header) + 30px);
    padding-bottom: 40px;
  }
  .quote-band blockquote { font-size: clamp(2.7rem, min(5vw, 8vh), 5.1rem); }
}

@media (max-width: 760px) {
  .hero {
    height: 100svh;
    min-height: 100svh;
  }
  .hero-content {
    padding-top: calc(var(--header) + 10px);
    padding-bottom: 14px;
  }
  .eyebrow {
    margin-bottom: 10px;
    font-size: .68rem;
    letter-spacing: .12em;
  }
  .hero h1 {
    margin-bottom: 12px;
    font-size: clamp(2.05rem, 10vw, 3.15rem);
    line-height: 1.01;
  }
  .hero-copy {
    margin-bottom: 14px;
    font-size: .95rem;
    line-height: 1.42;
  }
  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .hero-actions .button {
    width: auto;
    min-height: 42px;
    padding: 9px 10px;
    font-size: .67rem;
    line-height: 1.2;
  }
  .hero-facts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 18px;
  }
  .hero-facts div,
  .hero-facts div:first-child {
    min-width: 0;
    padding: 0 0 0 8px;
    border-left: 1px solid rgba(255,255,255,.36);
  }
  .hero-facts dt { font-size: .83rem; line-height: 1.15; }
  .hero-facts dd { font-size: .66rem; line-height: 1.25; }
}

@media (max-width: 760px) and (max-height: 700px) {
  .hero h1 { font-size: clamp(1.8rem, 8.5vw, 2.65rem); }
  .hero-copy { font-size: .86rem; line-height: 1.32; }
  .hero-facts { margin-top: 12px; }
  .hero-facts dd { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

/* Affichage intégral : aucune photo ni aucun contenu de slide ne doit être coupé. */
.hero {
  background-color: var(--ink);
  background-image: none;
}
.hero-media {
  object-fit: cover;
  object-position: 58% center;
  opacity: 1;
}
.method-photo {
  display: grid;
  align-items: center;
  overflow: hidden;
  background: var(--ink);
}
.method-photo img {
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
}
.equipment-media {
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #071321;
}
.equipment-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

@media (min-width: 1001px) {
  main > section {
    height: 100svh;
    min-height: 100svh;
    max-height: 100svh;
    overflow: hidden;
  }
  .method-photo img {
    height: auto;
    max-height: min(52svh, 470px);
  }
  .equipment {
    grid-template-rows: minmax(0, 1fr);
  }
  .equipment-media,
  .equipment-panel {
    min-width: 0;
    min-height: 0;
  }
  .equipment-panel {
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: calc(var(--header) + 10px) clamp(36px, 5vw, 72px) 20px;
    overflow: hidden;
  }
  .equipment-panel .kicker { margin-bottom: 12px; }
  .equipment-panel h2 {
    margin-bottom: 18px;
    font-size: clamp(2.15rem, min(3.5vw, 5.8vh), 3.75rem);
  }
  .equipment-panel > p:not(.kicker) {
    margin-bottom: 0;
    font-size: .94rem;
    line-height: 1.48;
  }
  .spec-grid { margin-top: clamp(16px, 2.6vh, 24px); }
  .spec-grid div {
    min-height: min(11vh, 88px);
    padding: clamp(12px, 1.8vh, 16px);
  }
}

@media (max-width: 1000px) {
  body { overflow-x: hidden; }
  .intro > *,
  .method > *,
  .coverage > *,
  .contact-grid > *,
  .equipment > * { min-width: 0; }
  h1, h2, h3 { overflow-wrap: anywhere; }
  .method-photo img,
  .equipment-media img {
    height: auto;
    max-height: none;
    aspect-ratio: auto;
    object-fit: contain;
  }
  .equipment-media { min-height: 0; }
}