/* ============================================
   CVS Engineering — Site Vitrine
   Dark Mode | Broadcast B2B
   Palette : #0A0A0B (bg) / #E8E8E6 (text) / #C8327A (accent magenta) / #7B35A8 (violet)
   Fonts : Syne (display) + DM Sans (body)
   ============================================ */

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

:root {
  --bg-primary:    #0A0A0B;
  --bg-secondary:  #111114;
  --bg-card:       #16161A;
  --bg-card-hover: #1D1D22;

  --text-primary:  #E8E8E6;
  --text-muted:    #8A8A9A;
  --text-dimmed:   #555566;

  --accent-magenta:#C8327A;
  --accent-violet: #7B35A8;
  --accent-gradient: linear-gradient(135deg, #C8327A 0%, #7B35A8 100%);

  --border:        rgba(255,255,255,0.07);
  --border-accent: rgba(200,50,122,0.35);

  --font-display:  'Syne', sans-serif;
  --font-body:     'DM Sans', sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: #333; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-magenta); }

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(1.9rem, 4vw, 3.4rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.1rem; }

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-magenta);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px; height: 2px;
  background: var(--accent-gradient);
  flex-shrink: 0;
}

/* ---- LAYOUT ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container--wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

section { padding: var(--space-xl) 0; }

/* ---- GRAIN OVERLAY ---- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.025;
  pointer-events: none;
  z-index: 9999;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.2rem 0;
  transition: var(--transition);
}

.nav.scrolled {
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0.8rem 0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.nav__logo img {
  height: 38px;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  transition: color var(--transition);
  letter-spacing: 0.02em;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--accent-gradient);
  transition: width var(--transition);
}
.nav__link:hover, .nav__link.active {
  color: var(--text-primary);
}
.nav__link:hover::after, .nav__link.active::after {
  width: 100%;
}

.nav__cta {
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.6rem 1.4rem;
  background: var(--accent-gradient);
  color: #fff;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
  transition: opacity var(--transition), transform var(--transition);
}
.nav__cta:hover { opacity: 0.85; transform: translateY(-1px); }

/* BURGER */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 1001;
}
.nav__burger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.nav__burger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* MOBILE MENU */
.nav__mobile {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  transform: translateX(100%);
  transition: transform 0.45s cubic-bezier(0.77, 0, 0.175, 1);
}
.nav__mobile.open { transform: translateX(0); }
.nav__mobile .nav__link {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}
.nav__mobile .nav__cta {
  font-size: 1rem;
  padding: 0.9rem 2rem;
  margin-top: 1rem;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 8s ease-out;
}
.hero__bg.loaded { transform: scale(1); }

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10,10,11,0.88) 0%,
    rgba(10,10,11,0.70) 50%,
    rgba(10,10,11,0.82) 100%
  );
}

.hero__overlay-accent {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 50%, rgba(123,53,168,0.12) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 80%, rgba(200,50,122,0.08) 0%, transparent 50%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero__eyebrow {
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.7s ease forwards 0.3s;
}

.hero__title {
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.7s ease forwards 0.5s;
}

.hero__title span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.7s ease forwards 0.7s;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.7s ease forwards 0.9s;
}

.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 2;
  opacity: 0;
  animation: fadeIn 1s ease forwards 1.5s;
}
.hero__scroll span {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dimmed);
}
.hero__scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--accent-magenta), transparent);
  animation: scrollPulse 2s ease infinite;
}

/* ---- USP BAR ---- */
.usp-bar {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 3rem 0;
}

.usp-bar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.usp-item {
  text-align: center;
  padding: 1.5rem;
  border-right: 1px solid var(--border);
}
.usp-item:last-child { border-right: none; }

.usp-item__number {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.usp-item__label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.03em;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  padding: 0.85rem 2rem;
  background: var(--accent-gradient);
  color: #fff;
}
.btn--primary:hover {
  opacity: 0.88;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(200,50,122,0.3);
}

.btn--outline {
  padding: 0.85rem 2rem;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn--outline:hover {
  border-color: var(--accent-magenta);
  color: var(--accent-magenta);
  transform: translateY(-2px);
}

.btn--ghost {
  padding: 0.5rem 0;
  color: var(--accent-magenta);
  gap: 0.4rem;
}
.btn--ghost svg { transition: transform var(--transition); }
.btn--ghost:hover svg { transform: translateX(4px); }

/* ============================================
   ABOUT SECTION
   ============================================ */
.about { background: var(--bg-primary); }

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about__image {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.about__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.about__image:hover img { transform: scale(1.03); }

.about__image-accent {
  position: absolute;
  inset: -2px;
  border-radius: calc(var(--radius-md) + 2px);
  background: var(--accent-gradient);
  z-index: -1;
}

.about__content { }
.about__title { margin: 1rem 0; }
.about__text {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 2rem;
}

/* LOGO SLIDER */
.logo-slider {
  overflow: hidden;
  padding: 2rem 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.logo-slider__track {
  display: flex;
  gap: 3rem;
  animation: marquee 25s linear infinite;
  width: max-content;
}

.logo-slider__item {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dimmed);
  white-space: nowrap;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: color var(--transition);
}
.logo-slider__item:hover { color: var(--text-muted); }
.logo-slider__item::before {
  content: '◆';
  color: var(--accent-magenta);
  font-size: 0.5rem;
}

/* ============================================
   GRID BLOCS (pourquoi CVS)
   ============================================ */
.grid-blocs { background: var(--bg-secondary); }

.grid-blocs__header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-lg);
}
.grid-blocs__header h2 { margin: 0.75rem 0; }
.grid-blocs__header p { color: var(--text-muted); }

.grid-blocs__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.bloc-card {
  background: var(--bg-secondary);
  padding: 3rem;
  transition: background var(--transition);
  position: relative;
  overflow: hidden;
}
.bloc-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition-slow);
}
.bloc-card:hover { background: var(--bg-card-hover); }
.bloc-card:hover::before { width: 100%; }

.bloc-card__icon {
  width: 44px; height: 44px;
  background: rgba(200,50,122,0.1);
  border: 1px solid rgba(200,50,122,0.2);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

.bloc-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.bloc-card__text {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1.2rem;
}

.bloc-card__bullets {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.bloc-card__bullet {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.bloc-card__bullet::before {
  content: '→';
  color: var(--accent-magenta);
  flex-shrink: 0;
  margin-top: 0.05em;
}

/* ============================================
   PORTFOLIO PREVIEW (homepage)
   ============================================ */
.portfolio-preview { background: var(--bg-primary); }

.portfolio-preview__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  gap: 2rem;
  flex-wrap: wrap;
}

.project-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.4);
}

.project-card__image {
  aspect-ratio: 16/9;
  overflow: hidden;
}
.project-card__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.project-card:hover .project-card__image img { transform: scale(1.06); }

.project-card__body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-card__tag {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-magenta);
  margin-bottom: 0.6rem;
}

.project-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  line-height: 1.3;
}

.project-card__text {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 1rem;
}

.project-card__client {
  font-size: 0.75rem;
  color: var(--text-dimmed);
  letter-spacing: 0.05em;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* ============================================
   INNOVATION SECTION (FlashCam)
   ============================================ */
.innovation {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.innovation::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(123,53,168,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.innovation__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.innovation__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(123,53,168,0.15);
  border: 1px solid rgba(123,53,168,0.3);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #A06FD4;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.innovation__title { margin-bottom: 1rem; }
.innovation__text {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.innovation__image {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  border: 1px solid var(--border);
}
.innovation__image img {
  width: 100%; height: 100%;
  object-fit: cover;
}

/* ============================================
   FAQ
   ============================================ */
.faq { background: var(--bg-primary); }

.faq__header {
  text-align: center;
  max-width: 560px;
  margin: 0 auto var(--space-lg);
}
.faq__header h2 { margin: 0.75rem 0; }
.faq__header p { color: var(--text-muted); }

.faq__list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.6rem 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  text-align: left;
  color: var(--text-primary);
  gap: 1rem;
  transition: color var(--transition);
}
.faq-item__question:hover { color: var(--accent-magenta); }

.faq-item__icon {
  flex-shrink: 0;
  width: 24px; height: 24px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
  font-size: 0.9rem;
}
.faq-item.open .faq-item__icon {
  background: var(--accent-gradient);
  border-color: transparent;
  transform: rotate(45deg);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  color: var(--text-muted);
  line-height: 1.75;
  font-size: 0.95rem;
}
.faq-item.open .faq-item__answer {
  max-height: 300px;
  padding-bottom: 1.5rem;
}

/* ============================================
   CTA BAND
   ============================================ */
.cta-band {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(200,50,122,0.07) 0%, transparent 60%);
  pointer-events: none;
}

.cta-band__title { margin: 1rem 0; }
.cta-band__text {
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.cta-band__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.cta-band__phone {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
}
.cta-band__phone:hover { color: var(--text-primary); }
.cta-band__phone svg { color: var(--accent-magenta); }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.footer__brand img { height: 36px; margin-bottom: 1rem; }
.footer__brand p {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.7;
  max-width: 280px;
  margin-bottom: 1.2rem;
}

.footer__col-title {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 1.2rem;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.footer__link {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer__link:hover { color: var(--accent-magenta); }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer__copy {
  font-size: 0.8rem;
  color: var(--text-dimmed);
}
.footer__legal {
  display: flex;
  gap: 1.5rem;
}
.footer__legal a {
  font-size: 0.8rem;
  color: var(--text-dimmed);
  transition: color var(--transition);
}
.footer__legal a:hover { color: var(--text-muted); }

/* ============================================
   PAGE HEADER (inner pages)
   ============================================ */
.page-header {
  padding: 10rem 0 5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--accent-gradient);
}

.page-header__bg-text {
  position: absolute;
  right: -2rem;
  bottom: -1rem;
  font-family: var(--font-display);
  font-size: 12rem;
  font-weight: 800;
  color: rgba(255,255,255,0.025);
  user-select: none;
  line-height: 1;
  letter-spacing: -0.04em;
}

.page-header h1 { margin: 0.75rem 0; }
.page-header p {
  color: var(--text-muted);
  max-width: 600px;
  font-size: 1.1rem;
  line-height: 1.7;
}

/* ============================================
   EXPERTISES PAGE
   ============================================ */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.expertise-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.expertise-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition-slow);
}
.expertise-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
}
.expertise-card:hover::after { width: 100%; }

.expertise-card__icon {
  font-size: 2rem;
  margin-bottom: 1.2rem;
}
.expertise-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  letter-spacing: -0.01em;
}
.expertise-card__text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.expertise-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.tag {
  font-size: 0.7rem;
  padding: 0.25rem 0.6rem;
  background: rgba(200,50,122,0.08);
  border: 1px solid rgba(200,50,122,0.15);
  border-radius: 100px;
  color: var(--accent-magenta);
  font-weight: 500;
  letter-spacing: 0.05em;
}

/* Process timeline */
.process { background: var(--bg-secondary); }
.process__title { text-align: center; margin-bottom: var(--space-lg); }
.process__title h2 { margin: 0.75rem 0; }

.timeline {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline-item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 2rem;
  position: relative;
}

.timeline-item:not(:last-child)::before {
  content: '';
  position: absolute;
  top: 52px;
  left: 29px;
  width: 2px;
  bottom: 0;
  background: var(--border);
}

.timeline-item__num {
  width: 60px; height: 60px;
  border: 1px solid var(--border-accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}

.timeline-item__content { padding: 1rem 0 3rem; }
.timeline-item__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}
.timeline-item__text {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ============================================
   RÉALISATIONS PAGE
   ============================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.portfolio-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.portfolio-item:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.35);
}

.portfolio-item--featured {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.portfolio-item__image {
  aspect-ratio: 16/9;
  overflow: hidden;
}
.portfolio-item--featured .portfolio-item__image { aspect-ratio: auto; }
.portfolio-item__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.portfolio-item:hover .portfolio-item__image img { transform: scale(1.05); }

.portfolio-item__body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.portfolio-item--featured .portfolio-item__body { padding: 3rem; }

.portfolio-item__type {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-magenta);
  margin-bottom: 0.75rem;
}
.portfolio-item__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.portfolio-item--featured .portfolio-item__title { font-size: 1.5rem; }

.portfolio-item__desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.portfolio-item__client {
  font-size: 0.75rem;
  color: var(--text-dimmed);
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.portfolio-item__client::before {
  content: '◆';
  color: var(--accent-magenta);
  font-size: 0.4rem;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 5rem;
  align-items: start;
}

.contact-info { }
.contact-info__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.contact-info__text {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.contact-detail__icon {
  width: 40px; height: 40px;
  background: rgba(200,50,122,0.1);
  border: 1px solid rgba(200,50,122,0.2);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}
.contact-detail__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dimmed);
  margin-bottom: 0.2rem;
}
.contact-detail__value {
  font-weight: 500;
  color: var(--text-primary);
  transition: color var(--transition);
}
.contact-detail__value:hover { color: var(--accent-magenta); }

/* FORM */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3rem;
}

.form-group {
  margin-bottom: 1.4rem;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-input:focus, .form-textarea:focus {
  border-color: var(--accent-magenta);
  box-shadow: 0 0 0 3px rgba(200,50,122,0.1);
}
.form-input::placeholder, .form-textarea::placeholder {
  color: var(--text-dimmed);
}
.form-textarea { resize: vertical; min-height: 140px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.form-error {
  font-size: 0.78rem;
  color: #E05252;
  margin-top: 0.3rem;
  display: none;
}
.form-group.has-error .form-error { display: block; }
.form-group.has-error .form-input,
.form-group.has-error .form-textarea {
  border-color: #E05252;
}

.form-success {
  display: none;
  padding: 1.5rem;
  background: rgba(50,180,100,0.08);
  border: 1px solid rgba(50,180,100,0.2);
  border-radius: var(--radius-sm);
  color: #5CD08A;
  text-align: center;
  font-weight: 600;
  margin-top: 1rem;
}
.form-success.visible { display: block; }

/* ============================================
   À PROPOS PAGE
   ============================================ */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.value-card {
  padding: 2.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.value-card:hover { border-color: var(--border-accent); background: var(--bg-card); }
.value-card__num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-magenta);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}
.value-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.value-card__text { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.team-card {
  text-align: center;
  padding: 2rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.team-card:hover { border-color: var(--border-accent); }

.team-card__avatar {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: #fff;
  margin: 0 auto 1rem;
}
.team-card__name {
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 0.3rem;
}
.team-card__role { font-size: 0.85rem; color: var(--text-muted); }

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  to { opacity: 1; }
}
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
@keyframes scrollPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .about__inner,
  .innovation__inner { grid-template-columns: 1fr; gap: 3rem; }
  .innovation__inner .innovation__image { order: -1; }

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

@media (max-width: 900px) {
  .project-cards { grid-template-columns: repeat(2, 1fr); }
  .grid-blocs__grid { grid-template-columns: 1fr; }
  .expertise-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-item--featured {
    grid-column: auto;
    grid-template-columns: 1fr;
  }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .usp-bar__grid { grid-template-columns: repeat(2, 1fr); }
  .usp-item { border-right: none; border-bottom: 1px solid var(--border); }
  .usp-item:last-child { border-bottom: none; }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__burger { display: flex; }

  .hero__actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }

  .project-cards { grid-template-columns: 1fr; }
  .expertise-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .portfolio-preview__header { flex-direction: column; align-items: flex-start; }
  .usp-bar__grid { grid-template-columns: repeat(2, 1fr); }
  .contact-form { padding: 1.5rem; }
  section { padding: 5rem 0; }
}

@media (max-width: 480px) {
  .team-grid { grid-template-columns: 1fr; }
  .usp-bar__grid { grid-template-columns: 1fr; }
}