/* =========================================================
   DST INGÉNIERIE — Refonte 2026
   Inspiration : techtitute.com (layout clean, cards, grid)
   Charte : PDF DST (rouge industriel, bleu nuit, chevrons)
   ========================================================= */

:root {
  /* --- Charte DST : rouge vif (PDF) + bleu marine (site actuel) --- */
  --red: #E60A0A;
  --red-dark: #B00808;
  --red-glow: rgba(230, 10, 10, 0.4);
  /* Les NOIRS deviennent du BLEU MARINE (plus de noir pur) */
  --navy: #13385C;        /* bandeaux sombres */
  --navy-2: #1A3A52;
  --blue: #1A3A52;
  --blue-light: #2F5684;
  --ink: #1A3A52;         /* titres : bleu marine au lieu de noir */
  --text: #3B4A5A;        /* body : gris-bleu chaud */
  --muted: #7A8899;
  --line: #DDE4EC;
  --bg: #FFFFFF;
  --bg-soft: #F4F7FA;
  --bg-dark: #13385C;     /* sections dark = navy, plus de noir */

  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 20px 48px rgba(15, 23, 42, 0.18);

  --container: 1240px;
  --header-h: 120px;

  --font-display: 'Oswald', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

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

/* ========== SPLASH SCREEN (boot style) ========== */
body.booting { overflow: hidden; }

.splash {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: all;
  transition: opacity .7s ease, visibility .7s;
}
.splash.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.splash-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(230, 10, 10, 0.25), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(230, 10, 10, 0.18), transparent 50%),
    linear-gradient(135deg, #0a1b2e 0%, #13385C 60%, #1A3A52 100%);
}
.splash-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,.03) 0, rgba(255,255,255,.03) 1px, transparent 1px, transparent 4px);
  opacity: .5;
  animation: splashScan 6s linear infinite;
}
@keyframes splashScan {
  from { background-position: 0 0; }
  to { background-position: 0 400px; }
}
.splash-content {
  position: relative;
  text-align: center;
  z-index: 2;
  padding: 40px;
}
.splash-logo {
  width: clamp(260px, 34vw, 440px);
  height: auto;
  display: block;
  margin: 0 auto 32px;
  filter: drop-shadow(0 0 48px rgba(230, 10, 10, 0.65));
  image-rendering: -webkit-optimize-contrast;
  animation: splashLogoIn 1.4s cubic-bezier(.2,.8,.2,1) both, splashLogoBeat 2.8s ease-in-out 1.4s infinite;
}
@keyframes splashLogoIn {
  0%   { opacity: 0; transform: scale(.72) translateY(20px); filter: drop-shadow(0 0 0 rgba(230,10,10,0)); }
  60%  { opacity: 1; transform: scale(1.06) translateY(0); }
  100% { opacity: 1; transform: scale(1) translateY(0); filter: drop-shadow(0 0 40px rgba(230, 10, 10, 0.55)); }
}
@keyframes splashLogoBeat {
  0%, 100% { filter: drop-shadow(0 0 40px rgba(230, 10, 10, 0.55)); }
  50%      { filter: drop-shadow(0 0 60px rgba(230, 10, 10, 0.85)); }
}

.splash-tagline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-family: var(--font-display);
  color: #fff;
  font-size: 13px;
  letter-spacing: 8px;
  margin-bottom: 40px;
  opacity: 0;
  animation: splashFadeUp .8s ease-out 1s forwards;
}
.splash-tagline i {
  width: 6px;
  height: 6px;
  background: var(--red);
  border-radius: 50%;
  display: inline-block;
}
@keyframes splashFadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.splash-loader {
  width: min(320px, 70vw);
  height: 3px;
  margin: 0 auto 18px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 3px;
  overflow: hidden;
  opacity: 0;
  animation: splashFadeUp .6s ease-out 1.2s forwards;
}
.splash-loader-bar {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--red), #FF4B4B, var(--red));
  background-size: 200% 100%;
  animation: splashLoad 1.6s cubic-bezier(.4,.1,.3,1) 1.2s forwards, splashLoadShine 1.6s linear 1.2s infinite;
  box-shadow: 0 0 12px var(--red-glow);
}
@keyframes splashLoad {
  to { width: 100%; }
}
@keyframes splashLoadShine {
  from { background-position: 200% 0; }
  to { background-position: 0 0; }
}

.splash-caption {
  font-family: 'Courier New', monospace;
  color: rgba(255, 255, 255, 0.55);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0;
  animation: splashFadeUp .6s ease-out 1.4s forwards;
}
.splash-caption::after {
  content: "▋";
  animation: splashCaret 1s steps(2) infinite;
  margin-left: 6px;
}
@keyframes splashCaret {
  50% { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .splash-logo, .splash-tagline, .splash-loader, .splash-caption { animation: none; opacity: 1; }
  .splash-loader-bar { width: 100%; animation: none; }
}


body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--red); text-decoration: none; transition: color .2s; }
a:hover { color: var(--red-dark); }
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--ink); letter-spacing: .5px; margin: 0 0 .5em; line-height: 1.15; text-transform: uppercase; }
p { margin: 0 0 1em; }

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

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .25s;
  text-decoration: none;
  white-space: nowrap;
  font-family: var(--font-body);
}
.btn-primary {
  background: var(--red);
  color: #fff;
  box-shadow: 0 8px 20px var(--red-glow);
}
.btn-primary:hover {
  background: var(--red-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px var(--red-glow);
}
.btn-dark {
  background: var(--ink);
  color: #fff;
}
.btn-dark:hover { background: var(--navy); color: #fff; transform: translateY(-2px); }
.btn-ghost {
  color: #fff;
  border-color: rgba(255,255,255,.3);
  background: transparent;
}
.btn-ghost:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,.08); }
.btn-outline-light {
  color: #fff;
  border-color: #fff;
  background: transparent;
}
.btn-outline-light:hover { background: #fff; color: var(--ink); }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-lg { padding: 18px 32px; font-size: 17px; }
.btn-block { width: 100%; justify-content: center; }

/* ========== HEADER ========== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all .25s;
}
.site-header.scrolled {
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  transition: height .3s ease;
}
.site-header.scrolled .header-inner { height: 96px; }
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}
.brand-logo {
  width: auto;
  height: 108px;
  max-height: calc(var(--header-h) - 12px);
  object-fit: contain;
  filter: drop-shadow(0 4px 10px rgba(230, 10, 10, 0.22))
          drop-shadow(0 1px 1px rgba(0, 0, 0, 0.06));
  transition: transform .3s cubic-bezier(.2,.8,.2,1), filter .3s;
  image-rendering: -webkit-optimize-contrast;
}
.site-header.scrolled .brand-logo {
  height: 88px;
}
.brand:hover .brand-logo {
  transform: scale(1.05);
  filter: drop-shadow(0 6px 14px rgba(230, 10, 10, 0.35))
          drop-shadow(0 1px 2px rgba(0, 0, 0, 0.08));
}
.brand-text {
  display: none;   /* logo contient déjà "DST INGÉNIERIE" */
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav a {
  padding: 10px 14px;
  color: var(--ink);
  font-weight: 500;
  font-size: 14.5px;
  border-radius: 6px;
  transition: all .2s;
}
.nav a:not(.btn):hover,
.nav a.active:not(.btn) {
  color: var(--red);
  background: rgba(230, 10, 10, 0.08);
}
.nav a.active:not(.btn) {
  position: relative;
}
.nav a.active:not(.btn)::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 6px;
  height: 2px;
  background: var(--red);
  border-radius: 2px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 44px;
  height: 44px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  transition: transform .25s;
}

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: 100vh;
  color: #fff;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
}
/* Slideshow hero : fondu enchaîné images + vidéo */
.hero-slides {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.06);
  transition: opacity 1.4s ease-in-out, transform 8s linear;
}
.hero-slide.is-active {
  opacity: 1;
  transform: scale(1);
}
.hero-slide-video { background: #0A1628; }
.hero-slide-video video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: var(--red);
  z-index: 3;
  transition: width .2s linear;
  box-shadow: 0 0 12px var(--red-glow);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(19, 56, 92, 0.88) 0%, rgba(19, 56, 92, 0.65) 50%, rgba(230, 10, 10, 0.38) 100%),
    linear-gradient(to bottom, transparent 40%, rgba(19, 56, 92, 0.92) 100%);
  z-index: 1;
}
.hero-inner {
  position: relative;
  z-index: 2;
  padding: 100px 24px 120px;
  max-width: 1100px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 8px 18px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  margin-bottom: 28px;
  font-weight: 500;
}
.pulse {
  width: 8px;
  height: 8px;
  background: var(--red);
  border-radius: 50%;
  box-shadow: 0 0 0 0 var(--red);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(230, 10, 10, .7); }
  70% { box-shadow: 0 0 0 12px rgba(230, 10, 10, 0); }
  100% { box-shadow: 0 0 0 0 rgba(230, 10, 10, 0); }
}
.hero-title {
  font-size: clamp(44px, 6.5vw, 88px);
  line-height: 0.95;
  color: #fff;
  margin: 0 0 28px;
  font-weight: 700;
  letter-spacing: 1px;
}
.hero-title .hl {
  color: var(--red);
  position: relative;
  display: inline-block;
}
.hero-title em {
  font-style: italic;
  font-weight: 500;
  opacity: .9;
  text-transform: lowercase;
  font-size: .85em;
}
.hero-lead {
  max-width: 720px;
  font-size: 17.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 38px;
}
.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 72px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  max-width: 900px;
}
.hero-stats strong {
  display: block;
  font-family: var(--font-display);
  font-size: 42px;
  color: var(--red);
  line-height: 1;
  margin-bottom: 4px;
}
.hero-stats span {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
}
.hero-scroll {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  width: 28px;
  height: 44px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}
.hero-scroll span {
  width: 3px;
  height: 10px;
  background: #fff;
  border-radius: 2px;
  animation: scroll 2s infinite;
}
@keyframes scroll {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(10px); opacity: .3; }
}

/* ========== SECTIONS ========== */
.section {
  padding: 110px 0;
  position: relative;
}
.section-dark {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.82);
}
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
.section-gray { background: var(--bg-soft); }

.section-head {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 64px;
}
.section-title {
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.1;
  margin-bottom: 18px;
}
.section-intro {
  font-size: 17px;
  color: var(--muted);
}
.section-dark .section-intro { color: rgba(255,255,255,0.7); }

.eyebrow {
  display: inline-block;
  color: var(--red);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 14px;
  padding: 6px 14px;
  background: rgba(230, 10, 10, 0.09);
  border-radius: 999px;
}
.eyebrow.light {
  color: #fff;
  background: rgba(255,255,255,0.1);
}
.accent { color: var(--red); }
.section-dark .accent { color: var(--red); }

/* ========== SPLIT (À propos) ========== */
.split {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.split-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.split-media img {
  width: 100%;
  height: 620px;
  object-fit: cover;
  transition: transform .6s;
}
.split-media:hover img { transform: scale(1.04); }
.split-media::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(10, 22, 40, 0.5));
  z-index: 1;
}
.split-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  z-index: 2;
  background: var(--red);
  color: #fff;
  padding: 16px 22px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  box-shadow: 0 12px 32px rgba(230, 10, 10, 0.4);
}
.split-badge strong {
  display: block;
  font-size: 22px;
  letter-spacing: 1px;
}
.split-badge span {
  display: block;
  font-family: var(--font-body);
  font-size: 12px;
  opacity: .9;
  margin-top: 2px;
}

.split-content p { font-size: 17px; color: var(--text); margin-bottom: 18px; }
.split-content .btn { margin-top: 24px; }

.pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 36px 0 8px;
}
.pillar {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  position: relative;
  transition: all .25s;
}
.pillar:hover {
  border-color: var(--red);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.pillar-num {
  position: absolute;
  top: 14px;
  right: 18px;
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--red);
  opacity: .18;
  font-weight: 700;
}
.pillar h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.pillar p {
  font-size: 14.5px;
  color: var(--muted);
  margin: 0;
  line-height: 1.55;
}

/* ========== BANNER ========== */
.banner {
  background: linear-gradient(135deg, var(--ink), var(--blue));
  padding: 40px 0;
  color: #fff;
  border-top: 4px solid var(--red);
}
.banner-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.banner-item {
  display: flex;
  gap: 18px;
  align-items: center;
}
.banner-icon {
  font-size: 32px;
  width: 54px;
  height: 54px;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
}
.banner-item strong {
  display: block;
  font-family: var(--font-display);
  color: #fff;
  font-size: 16px;
  letter-spacing: 1px;
  margin-bottom: 2px;
  text-transform: uppercase;
}
.banner-item span {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
}

/* ========== SERVICES GRID ========== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  color: var(--text);
  transition: all .35s;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.service-media {
  position: relative;
  height: 240px;
  overflow: hidden;
}
.service-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s;
}
.service-card:hover .service-media img { transform: scale(1.08); }
.service-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 22, 40, 0.45), transparent 60%);
}
.service-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  background: var(--red);
  color: #fff;
  font-family: var(--font-display);
  font-size: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  letter-spacing: 0;
  box-shadow: 0 6px 18px var(--red-glow);
}
.service-body {
  padding: 28px 26px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.service-body h3 {
  font-size: 21px;
  color: var(--ink);
  margin-bottom: 10px;
}
.service-body p {
  font-size: 14.5px;
  color: var(--muted);
  margin-bottom: 14px;
}
.service-body ul {
  padding: 0;
  margin: 0;
  list-style: none;
}
.service-body ul li {
  font-size: 13.5px;
  padding: 6px 0 6px 22px;
  position: relative;
  color: var(--text);
  border-bottom: 1px dashed var(--line);
}
.service-body ul li:last-child { border-bottom: none; }
.service-body ul li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: bold;
}

/* ========== SECTEURS GRID ========== */
.sector-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 280px;
  gap: 20px;
}
.sector-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: flex-end;
  transition: transform .35s;
  box-shadow: var(--shadow-md);
  isolation: isolate;
}
.sector-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--img);
  background-size: cover;
  background-position: center;
  transition: transform .7s;
  z-index: -2;
}
.sector-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 22, 40, 0.92) 0%, rgba(10, 22, 40, 0.3) 60%, transparent 100%);
  z-index: -1;
  transition: background .4s;
}
.sector-card:hover::before { transform: scale(1.08); }
.sector-card:hover::after {
  background: linear-gradient(to top, rgba(230, 10, 10, 0.85) 0%, rgba(19, 56, 92, 0.45) 70%, transparent 100%);
}
.sector-card-wide { grid-column: span 2; }

.sector-content {
  padding: 28px;
  width: 100%;
  color: #fff;
}
.sector-num {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 3px;
  background: var(--red);
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
}
.sector-content h3 {
  color: #fff;
  font-size: 26px;
  margin-bottom: 6px;
  letter-spacing: 1.5px;
}
.sector-content p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 14px;
  margin-bottom: 12px;
  max-width: 480px;
}
.sector-link {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #fff;
  opacity: 0;
  transform: translateY(8px);
  transition: all .3s;
  border-bottom: 2px solid var(--red);
  padding-bottom: 2px;
}
.sector-card:hover .sector-link { opacity: 1; transform: translateY(0); }

/* ========== TOOLS GRID ========== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.tool-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all .3s;
  border: 1px solid var(--line);
}
.tool-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--red);
}
.tool-img {
  height: 180px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.tool-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10, 22, 40, 0.15), rgba(10, 22, 40, 0.5));
}
.tool-body {
  padding: 22px 22px 26px;
}
.tool-body h4 {
  font-size: 17px;
  color: var(--ink);
  margin-bottom: 8px;
}
.tool-body p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.55;
}

/* ========== SHOWCASE VIDÉO STICKY (style Techtitute) ========== */
.showcase {
  position: relative;
}
.showcase-stage {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  color: #fff;
}
.showcase-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.showcase-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
}
.showcase-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(19, 56, 92, 0.92) 0%, rgba(19, 56, 92, 0.55) 55%, rgba(19, 56, 92, 0.1) 100%),
    linear-gradient(to bottom, rgba(15, 30, 50, 0.4), rgba(15, 30, 50, 0.6));
}
.showcase-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  padding: 0 48px 0 80px;
  margin-left: max(0px, calc((100vw - 1240px) / 2));
}
.showcase-num {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 4px;
  color: var(--red);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--red);
  margin-bottom: 20px;
}
.showcase-content h2 {
  color: #fff;
  font-size: clamp(44px, 6vw, 84px);
  line-height: 1;
  margin-bottom: 24px;
}
.showcase-content h2 em {
  font-style: italic;
  font-weight: 500;
  opacity: .9;
  text-transform: lowercase;
}
.showcase-content p {
  font-size: 18px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.9);
  max-width: 540px;
}

/* ========== CHAUDIÈRES ========== */
.chaudieres-section { background: linear-gradient(180deg, #fff, #F4F7FA); }
.chaud-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  grid-template-rows: repeat(2, 280px);
  gap: 16px;
}
.chaud-hero {
  grid-column: 1;
  grid-row: 1 / span 2;
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.chaud-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .8s;
}
.chaud-hero:hover img { transform: scale(1.05); }
.chaud-hero figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 28px;
  background: linear-gradient(to top, rgba(19, 56, 92, 0.95), transparent);
  color: #fff;
}
.chaud-tag {
  display: inline-block;
  background: var(--red);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.chaud-hero figcaption strong {
  display: block;
  font-family: var(--font-display);
  font-size: 26px;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.chaud-hero figcaption p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.88);
  margin: 0;
  max-width: 460px;
}
.chaud-small {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .3s;
}
.chaud-small:hover { transform: translateY(-4px); }
.chaud-small img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.chaud-small div {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 14px 16px;
  background: linear-gradient(to top, rgba(19, 56, 92, 0.92), transparent);
  color: #fff;
}
.chaud-small strong {
  display: block;
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: .8px;
}
.chaud-small span {
  display: block;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 2px;
}

.chaud-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
  padding: 40px;
  background: #fff;
  border-radius: var(--radius);
  border-left: 5px solid var(--red);
  box-shadow: var(--shadow-md);
}
.chaud-specs h4 {
  color: var(--ink);
  font-size: 20px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line);
}
.chaud-specs ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.chaud-specs ul li {
  padding: 8px 0 8px 26px;
  position: relative;
  font-size: 15px;
  color: var(--text);
}
.chaud-specs ul li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: bold;
}

/* ========== TARAGE DÉDIÉ ========== */
.tarage-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: center;
}
.tarage-content .lead {
  font-size: 18px;
  color: var(--text);
  margin: 18px 0 30px;
}
.tarage-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 30px;
}
.tab-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  transition: all .3s;
}
.tab-card:hover {
  border-color: var(--red);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.tab-num {
  position: absolute;
  top: -18px;
  left: 20px;
  background: var(--red);
  color: #fff;
  font-family: var(--font-display);
  font-size: 18px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 16px var(--red-glow);
}
.tab-card h4 {
  margin: 8px 0 10px;
  font-size: 17px;
  color: var(--ink);
}
.tab-card p {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 12px;
}
.tabs-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.tabs-list li {
  font-size: 13px;
  padding: 4px 0 4px 18px;
  position: relative;
  color: var(--text);
}
.tabs-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: bold;
}
.tarage-risks {
  background: var(--navy);
  color: #fff;
  padding: 20px 24px;
  border-radius: var(--radius);
  border-left: 5px solid var(--red);
}
.tarage-risks strong {
  display: block;
  font-family: var(--font-display);
  color: var(--red);
  letter-spacing: 1.5px;
  font-size: 14px;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.tarage-risks span {
  display: inline-block;
  margin: 3px 6px 3px 0;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  font-size: 13px;
}

.tarage-visual {
  position: relative;
}
.tarage-main {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.tarage-inset {
  position: absolute;
  right: -24px;
  bottom: -24px;
  width: 55%;
  border-radius: var(--radius-sm);
  border: 6px solid var(--bg);
  box-shadow: var(--shadow-lg);
}
.tarage-spec {
  position: absolute;
  top: 20px;
  left: -20px;
  background: var(--red);
  color: #fff;
  padding: 14px 20px;
  border-radius: 8px;
  font-family: var(--font-display);
  box-shadow: 0 12px 32px var(--red-glow);
}
.tarage-spec strong {
  display: block;
  font-size: 28px;
  letter-spacing: 1px;
  line-height: 1;
}
.tarage-spec span {
  display: block;
  font-family: var(--font-body);
  font-size: 11px;
  margin-top: 4px;
  letter-spacing: 1px;
  text-transform: uppercase;
  opacity: .9;
}

/* ========== DUAL FEATURE (Céramique / Soudure) ========== */
.dual-feature {
  display: flex;
  flex-direction: column;
  gap: 56px;
}
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.feature-block.feature-reverse { direction: rtl; }
.feature-block.feature-reverse > * { direction: ltr; }

.feature-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.feature-media img {
  width: 100%;
  height: 440px;
  object-fit: cover;
  transition: transform .8s;
}
.feature-block:hover .feature-media img { transform: scale(1.04); }
.feature-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(19, 56, 92, 0.5), transparent 50%);
}
.feature-kpi {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: var(--red);
  color: #fff;
  padding: 14px 22px;
  border-radius: 8px;
  font-family: var(--font-display);
  z-index: 2;
  box-shadow: 0 12px 32px var(--red-glow);
}
.feature-kpi strong {
  display: block;
  font-size: 26px;
  letter-spacing: 1px;
  line-height: 1;
}
.feature-kpi span {
  display: block;
  font-family: var(--font-body);
  font-size: 11.5px;
  margin-top: 4px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  opacity: .95;
}
.feature-tag {
  display: inline-block;
  color: var(--red);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  padding: 6px 14px;
  background: rgba(230, 10, 10, 0.12);
  border-radius: 999px;
  margin-bottom: 14px;
}
.feature-body h3 {
  color: #fff;
  font-size: clamp(28px, 3vw, 38px);
  margin-bottom: 16px;
  line-height: 1.15;
}
.feature-body p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 20px;
}
.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.feature-list li {
  padding: 8px 0 8px 26px;
  position: relative;
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.88);
  border-bottom: 1px dashed rgba(255, 255, 255, 0.12);
}
.feature-list li:last-child { border-bottom: none; }
.feature-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: bold;
}

/* ========== CÉRAMIQUE — galerie détail ========== */
.ceram-gallery {
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.ceram-title {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 32px;
}
.ceram-title h3 {
  color: #fff;
  font-size: 28px;
  margin-bottom: 10px;
}
.ceram-title p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
}
.ceram-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.ceram-grid figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: #0f2a44;
}
.ceram-grid img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform .6s;
}
.ceram-grid figure:hover img { transform: scale(1.05); }
.ceram-grid figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 18px 20px;
  color: #fff;
  background: linear-gradient(to top, rgba(10, 22, 40, 0.95), transparent);
}
.ceram-grid strong {
  display: block;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.ceram-grid span {
  display: block;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: .5px;
}

/* ========== BANDES TRANSPORTEUSES ========== */
.belts-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 20px;
}
.belts-hero,
.belts-card {
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform .3s;
}
.belts-hero { grid-row: span 2; }
.belts-hero:hover,
.belts-card:hover { transform: translateY(-4px); }
.belts-hero img,
.belts-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .7s;
}
.belts-hero img { min-height: 460px; }
.belts-card img { height: 220px; }
.belts-hero:hover img,
.belts-card:hover img { transform: scale(1.05); }
.belts-hero figcaption,
.belts-card figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 20px 24px;
  background: linear-gradient(to top, rgba(19, 56, 92, 0.95) 0%, rgba(19, 56, 92, 0.2) 80%, transparent);
  color: #fff;
}
.belts-hero figcaption strong,
.belts-card figcaption strong {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.belts-hero figcaption p {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.88);
  margin: 4px 0 0;
  max-width: 500px;
}
.belts-card figcaption span {
  display: block;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.82);
}

.belts-spec {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
  padding: 32px;
  background: #fff;
  border-radius: var(--radius);
  border-top: 4px solid var(--red);
  box-shadow: var(--shadow-sm);
}
.belts-spec h4 {
  color: var(--ink);
  font-size: 16px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--line);
}
.belts-spec ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.belts-spec ul li {
  padding: 6px 0 6px 22px;
  position: relative;
  font-size: 14px;
  color: var(--text);
}
.belts-spec ul li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: bold;
}

/* ========== CATALOGUE ========== */
.catalogue-downloads {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 64px;
}
.cat-dl {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  color: #fff;
  text-decoration: none;
  transition: all .3s;
}
.cat-dl:hover {
  background: rgba(230, 10, 10, 0.12);
  border-color: var(--red);
  color: #fff;
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}
.cat-dl-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  font-size: 28px;
  background: rgba(230, 10, 10, 0.2);
  border-radius: 12px;
  flex-shrink: 0;
}
.cat-dl > div:nth-child(2) { flex: 1; min-width: 0; }
.cat-dl strong {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  color: #fff;
  letter-spacing: 1px;
  margin-bottom: 2px;
}
.cat-dl span {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: .3px;
}
.cat-dl-arrow {
  font-size: 22px;
  color: var(--red);
  font-weight: 700;
  transition: transform .3s;
}
.cat-dl:hover .cat-dl-arrow { transform: translateY(4px); }

/* ========== CATALOGUE PRODUITS (groupes + grille de cartes) ========== */
.catalog {
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.catalog-group {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 28px 28px 32px;
  position: relative;
}
.catalog-group::before {
  content: "";
  position: absolute;
  top: 0;
  left: 28px;
  width: 60px;
  height: 3px;
  background: var(--red);
  border-radius: 0 0 3px 3px;
}
.catalog-head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 20px;
  margin-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.catalog-num {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--red);
  font-weight: 700;
  letter-spacing: 1px;
  line-height: 1;
}
.catalog-head h3 {
  color: #fff;
  font-size: 22px;
  letter-spacing: 1.5px;
  margin: 0;
  flex: 1;
}
.catalog-count {
  font-family: var(--font-body);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
}
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.product {
  margin: 0;
  background: #FFFFFF;
  border-radius: 10px;
  overflow: hidden;
  transition: transform .3s cubic-bezier(.2,.8,.2,1), box-shadow .3s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
}
.product:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 32px rgba(230, 10, 10, 0.18), 0 6px 16px rgba(0, 0, 0, 0.35);
}
.product-img {
  aspect-ratio: 1 / 1;
  background:
    radial-gradient(circle at 30% 25%, #FFFFFF 0%, #F1F5F9 60%, #E2E8F0 100%);
  display: grid;
  place-items: center;
  padding: 14px;
  position: relative;
  overflow: hidden;
}
.product-img::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(230, 10, 10, 0.05));
  pointer-events: none;
}
.product-img img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: transform .45s cubic-bezier(.2,.8,.2,1);
  filter: contrast(1.02);
}
.product:hover .product-img img { transform: scale(1.08); }
.product figcaption {
  padding: 12px 14px 14px;
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--ink);
  letter-spacing: 1px;
  text-transform: uppercase;
  text-align: center;
  line-height: 1.3;
  background: #FFFFFF;
  border-top: 1px solid var(--line);
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
}

.cat-signature {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.cat-signature > div {
  text-align: center;
}
.cat-signature strong {
  display: block;
  font-family: var(--font-display);
  color: var(--red);
  font-size: 16px;
  letter-spacing: 3px;
  margin-bottom: 8px;
  text-transform: uppercase;
}
.cat-signature span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.55;
}

@media (max-width: 1024px) {
  .ceram-grid { grid-template-columns: 1fr 1fr; }
  .ceram-grid figure:last-child { grid-column: 1 / -1; }
  .belts-grid { grid-template-columns: 1fr 1fr; }
  .belts-hero { grid-column: 1 / -1; grid-row: auto; }
  .belts-spec { grid-template-columns: 1fr; }
  .catalogue-downloads { grid-template-columns: 1fr; }
  .catalog-grid { grid-template-columns: repeat(3, 1fr); }
  .cat-signature { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .ceram-grid { grid-template-columns: 1fr; }
  .ceram-grid figure:last-child { grid-column: auto; }
  .belts-grid { grid-template-columns: 1fr; }
  .catalog-grid { grid-template-columns: repeat(2, 1fr); }
  .catalog-group { padding: 20px 16px 24px; }
  .catalog-head { flex-wrap: wrap; gap: 10px; }
  .catalog-head h3 { font-size: 17px; flex: 1 1 100%; order: 2; }
  .cat-signature { grid-template-columns: 1fr; }
}

/* ========== PROCESSUS (timeline) ========== */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
}
.process-timeline::before {
  content: "";
  position: absolute;
  top: 34px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, var(--red), var(--navy), var(--red));
  opacity: .4;
  z-index: 0;
}
.process-step {
  position: relative;
  z-index: 1;
  background: #fff;
  padding: 28px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  text-align: center;
  transition: all .3s;
}
.process-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--red);
}
.process-num {
  display: grid;
  place-items: center;
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: var(--red);
  color: #fff;
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: 1px;
  margin: 0 auto 18px;
  box-shadow: 0 10px 28px var(--red-glow);
}
.process-step h4 {
  font-size: 17px;
  color: var(--ink);
  margin-bottom: 6px;
  letter-spacing: .5px;
}
.process-step strong {
  display: block;
  color: var(--red);
  font-size: 12.5px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.process-step p {
  font-size: 13.5px;
  color: var(--muted);
  margin: 0;
  line-height: 1.55;
}

@media (max-width: 1024px) {
  .showcase-content { padding: 0 32px; margin-left: 0; }
  .chaud-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto;
  }
  .chaud-hero { grid-column: 1 / -1; grid-row: auto; height: 340px; }
  .chaud-small { height: 200px; }
  .chaud-specs { grid-template-columns: 1fr; gap: 20px; padding: 28px; }
  .tarage-layout { grid-template-columns: 1fr; gap: 48px; }
  .tarage-tabs { grid-template-columns: 1fr; }
  .feature-block { grid-template-columns: 1fr; gap: 28px; }
  .feature-block.feature-reverse { direction: ltr; }
  .feature-media img { height: 320px; }
  .process-timeline { grid-template-columns: repeat(2, 1fr); }
  .process-timeline::before { display: none; }
}
@media (max-width: 720px) {
  .showcase-stage { min-height: 520px; }
  .showcase-content { padding: 0 24px; }
  .chaud-grid { grid-template-columns: 1fr 1fr; }
  .chaud-hero { height: 260px; }
  .chaud-small { height: 160px; }
  .process-timeline { grid-template-columns: 1fr; }
}

/* ========== RÉALISATIONS — DÉCOUVERTE PROGRESSIVE ========== */
.discovery {
  position: relative;
  margin: 0 auto;
}
.discovery-stage {
  position: relative;
  height: clamp(480px, 70vh, 680px);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  background: #0A1628;
  isolation: isolate;
}
.discovery-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 4px;
  width: 0;
  background: linear-gradient(90deg, var(--red), #FF4B4B, var(--red));
  background-size: 200% 100%;
  z-index: 12;
  box-shadow: 0 0 14px var(--red-glow);
  transition: width .15s linear;
  animation: discoveryShine 2s linear infinite;
}
@keyframes discoveryShine {
  from { background-position: 200% 0; }
  to { background-position: 0 0; }
}
.discovery-slides {
  position: absolute;
  inset: 0;
}
.discovery-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transform: scale(1.06);
  transition: opacity .9s cubic-bezier(.2,.8,.2,1),
              transform 7s linear,
              visibility .9s;
  z-index: 1;
}
.discovery-slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
  z-index: 2;
}
.discovery-slide.is-active .discovery-caption > * {
  animation: discoveryLineIn .75s cubic-bezier(.2,.8,.2,1) both;
}
.discovery-slide.is-active .discovery-caption .discovery-num { animation-delay: .1s; }
.discovery-slide.is-active .discovery-caption .discovery-cat { animation-delay: .2s; }
.discovery-slide.is-active .discovery-caption h3            { animation-delay: .3s; }
.discovery-slide.is-active .discovery-caption p             { animation-delay: .45s; }
.discovery-slide.is-active .discovery-caption .discovery-meta { animation-delay: .6s; }
@keyframes discoveryLineIn {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
.discovery-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.discovery-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top,
      rgba(10, 22, 40, 0.96) 0%,
      rgba(10, 22, 40, 0.72) 35%,
      rgba(10, 22, 40, 0.28) 65%,
      rgba(10, 22, 40, 0.08) 100%),
    linear-gradient(135deg, transparent 55%, rgba(230, 10, 10, 0.18) 100%);
}
.discovery-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 40px clamp(24px, 5vw, 64px) 48px;
  color: #fff;
  z-index: 3;
  max-width: 820px;
}
.discovery-num {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--red);
  padding: 5px 14px;
  border: 1px solid rgba(230, 10, 10, 0.5);
  border-radius: 999px;
  margin-bottom: 14px;
  font-weight: 600;
  background: rgba(230, 10, 10, 0.08);
  backdrop-filter: blur(6px);
}
.discovery-cat {
  display: block;
  font-family: var(--font-display);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.discovery-caption h3 {
  color: #fff;
  font-size: clamp(30px, 4.5vw, 52px);
  line-height: 1.05;
  letter-spacing: 1px;
  margin: 0 0 14px;
  text-transform: uppercase;
}
.discovery-caption p {
  font-size: 16.5px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.88);
  max-width: 640px;
  margin: 0 0 20px;
}
.discovery-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 1px;
  font-weight: 500;
}

.discovery-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(10, 22, 40, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
  z-index: 10;
  display: grid;
  place-items: center;
  transition: all .25s;
  backdrop-filter: blur(8px);
  font-family: var(--font-display);
  padding: 0;
}
.discovery-nav:hover {
  background: var(--red);
  border-color: var(--red);
  transform: translateY(-50%) scale(1.1);
  box-shadow: 0 8px 24px var(--red-glow);
}
.discovery-prev { left: 22px; }
.discovery-next { right: 22px; }

.discovery-play {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(10, 22, 40, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  cursor: pointer;
  z-index: 10;
  display: grid;
  place-items: center;
  transition: all .25s;
  backdrop-filter: blur(8px);
  padding: 0;
}
.discovery-play:hover {
  background: var(--red);
  border-color: var(--red);
}
.discovery-play .play-icon {
  position: absolute;
  font-size: 11px;
  letter-spacing: 0;
  transition: opacity .2s;
}
.discovery-play .play-play { opacity: 0; font-size: 14px; }
.discovery-play.is-paused .play-pause { opacity: 0; }
.discovery-play.is-paused .play-play  { opacity: 1; }

.discovery-rail {
  margin-top: 18px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--red) rgba(255,255,255,0.08);
  padding-bottom: 8px;
}
.discovery-rail::-webkit-scrollbar { height: 6px; }
.discovery-rail::-webkit-scrollbar-track { background: rgba(255,255,255,0.06); border-radius: 3px; }
.discovery-rail::-webkit-scrollbar-thumb { background: var(--red); border-radius: 3px; }

.discovery-rail-track {
  display: flex;
  gap: 10px;
  padding: 2px;
  min-width: min-content;
}
.discovery-thumb {
  flex: 0 0 150px;
  position: relative;
  height: 92px;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  background: #0A1628;
  padding: 0;
  transition: border-color .25s, transform .25s;
  isolation: isolate;
}
.discovery-thumb:hover { transform: translateY(-3px); border-color: rgba(230, 10, 10, 0.4); }
.discovery-thumb.is-active {
  border-color: var(--red);
  box-shadow: 0 8px 22px var(--red-glow);
}
.discovery-thumb-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
  transition: transform .4s;
}
.discovery-thumb:hover .discovery-thumb-img { transform: scale(1.08); }
.discovery-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 22, 40, 0.92), rgba(10, 22, 40, 0.25) 60%, transparent 100%);
  z-index: 1;
}
.discovery-thumb.is-active::after {
  background: linear-gradient(to top, rgba(230, 10, 10, 0.78), rgba(10, 22, 40, 0.3) 60%, transparent 100%);
}
.discovery-thumb-n,
.discovery-thumb-t {
  position: absolute;
  left: 10px;
  right: 10px;
  z-index: 2;
  color: #fff;
  font-family: var(--font-display);
  letter-spacing: 1px;
  text-align: left;
}
.discovery-thumb-n {
  top: 8px;
  font-size: 12px;
  color: var(--red);
  background: rgba(10, 22, 40, 0.7);
  padding: 2px 6px;
  border-radius: 3px;
  display: inline-block;
  width: fit-content;
}
.discovery-thumb.is-active .discovery-thumb-n {
  background: #fff;
  color: var(--red);
}
.discovery-thumb-t {
  bottom: 8px;
  font-size: 11.5px;
  text-transform: uppercase;
  line-height: 1.2;
}

.realisations-cta {
  margin-top: 48px;
  text-align: center;
  color: rgba(255, 255, 255, 0.85);
}
.realisations-cta p {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 1.5px;
  margin-bottom: 18px;
  color: #fff;
}
.realisations-cta p strong { color: var(--red); }

@media (max-width: 720px) {
  .discovery-stage { height: clamp(420px, 75vh, 560px); }
  .discovery-caption { padding: 24px 20px 30px; }
  .discovery-nav { width: 42px; height: 42px; font-size: 26px; }
  .discovery-prev { left: 10px; }
  .discovery-next { right: 10px; }
  .discovery-thumb { flex-basis: 120px; height: 78px; }
}

/* ========== QUOTE BAND ========== */
.quote-band {
  background: linear-gradient(135deg, var(--navy), var(--ink));
  color: #fff;
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.quote-band::before {
  content: '"';
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 400px;
  color: var(--red);
  opacity: .08;
  font-family: serif;
  line-height: 1;
}
.quote-band blockquote {
  margin: 0;
  position: relative;
}
.quote-band p {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.5vw, 42px);
  line-height: 1.3;
  color: #fff;
  letter-spacing: 1px;
  margin-bottom: 20px;
  text-transform: uppercase;
}
.quote-band footer {
  color: var(--red);
  font-size: 14px;
  letter-spacing: 3px;
  text-transform: uppercase;
}

/* ========== CLIENTS MARQUEE ========== */
.clients-marquee {
  overflow: hidden;
  padding: 20px 0;
  mask-image: linear-gradient(to right, transparent, #000 10%, #000 90%, transparent);
}
.clients-track {
  display: flex;
  gap: 50px;
  animation: marquee 45s linear infinite;
  width: max-content;
}
.clients-track span {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--muted);
  letter-spacing: 2px;
  padding: 20px 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  white-space: nowrap;
  transition: all .3s;
}
.clients-track span:hover {
  color: var(--red);
  border-color: var(--red);
  background: rgba(230, 10, 10, 0.05);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ========== CTA BAND ========== */
.cta-band {
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: 110px 0;
  color: #fff;
  text-align: center;
}
.cta-inner h2 {
  color: #fff;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.15;
  margin-bottom: 16px;
}
.cta-inner p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== CONTACT ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: start;
}
.contact-info .section-title { text-align: left; }
.contact-info > p { font-size: 16px; color: var(--muted); margin-bottom: 28px; }

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.contact-list li {
  display: flex;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.contact-list li:last-child { border-bottom: none; }
.ci-ico {
  font-size: 22px;
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  background: rgba(230, 10, 10, 0.1);
  border-radius: 50%;
  display: grid;
  place-items: center;
}
.contact-list strong {
  display: block;
  color: var(--ink);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.contact-list p { margin: 0; color: var(--text); font-size: 15px; }
.contact-list a { color: var(--text); }
.contact-list a:hover { color: var(--red); }

.contact-form {
  background: #fff;
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--line);
}
.contact-form h3 {
  font-size: 26px;
  color: var(--ink);
  margin-bottom: 24px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.contact-form label {
  display: block;
  margin-bottom: 16px;
}
.contact-form label span {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 15px;
  transition: all .2s;
  background: #fff;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 3px var(--red-glow);
}
.contact-form textarea { resize: vertical; }
.form-note {
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  margin: 16px 0 0;
}

/* ========== FOOTER ========== */
.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.65);
  padding-top: 70px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand img {
  width: 180px;
  margin-bottom: 18px;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
}
.site-footer h4 {
  color: #fff;
  font-size: 15px;
  letter-spacing: 2px;
  margin-bottom: 18px;
}
.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.site-footer ul li {
  font-size: 14px;
  padding: 6px 0;
}
.site-footer ul a {
  color: rgba(255, 255, 255, 0.65);
  transition: color .2s;
}
.site-footer ul a:hover { color: var(--red); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  font-size: 13px;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { margin: 0; }

/* ========== REVEAL ANIMATIONS ========== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease-out, transform .7s ease-out;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .service-grid,
  .sector-grid,
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .sector-card-wide { grid-column: span 2; }
  .split { grid-template-columns: 1fr; gap: 48px; }
  .split-media img { height: 420px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .banner-grid { grid-template-columns: 1fr; gap: 20px; }
}
@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: all .25s;
  }
  .nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav a { padding: 14px 16px; font-size: 15px; }
  .nav .btn { margin-top: 8px; justify-content: center; }

  .section { padding: 72px 0; }
  .section-head { margin-bottom: 44px; }
  .service-grid,
  .sector-grid,
  .tools-grid { grid-template-columns: 1fr; }
  .sector-card-wide { grid-column: span 1; }
  .sector-grid { grid-auto-rows: 240px; }
  .pillars { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .brand-logo { height: 72px; width: auto; }
  .site-header.scrolled .brand-logo { height: 60px; }
  .cta-band { background-attachment: scroll; }
  .contact-form { padding: 26px; }
}