/* ============================================
   GDEF PIÈCES POIDS LOURDS
   La qualité au service de la route
   Designed by Plume & Pixxel Studio
   Shared stylesheet — Light industrial theme
   ============================================ */

:root {
  /* Brand accent */
  --rouge: #E1112C;
  --rouge-dark: #B00D22;
  --rouge-glow: rgba(225, 17, 44, 0.25);

  /* Light industrial canvas (REN-PAR catalog feel) */
  --noir: #E8E8E8;          /* main bg — light gray like the catalog */
  --noir-soft: #F2F2F2;     /* slightly lighter section bg */
  --acier: #FFFFFF;          /* card bg — pure white pops on gray */
  --acier-light: #FAFAFA;    /* hover state */

  /* Text colors (flipped from dark theme) */
  --blanc: #0A0A0A;          /* primary text — near-black */
  --gris: #5A5A60;           /* muted body text */
  --gris-light: #3A3A40;     /* slightly stronger body */
  --gris-dark: #8A8A92;      /* faintest text */

  /* Borders & dividers */
  --border-soft: rgba(10, 10, 10, 0.08);
  --border-med: rgba(10, 10, 10, 0.15);

  --font-display: 'Anton', 'Bebas Neue', sans-serif;
  --font-body: 'Archivo', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --max: 1400px;
  --pad: clamp(1.25rem, 5vw, 4rem);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--noir);
  color: var(--blanc);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: rgba(225, 17, 44, 0.2);
}

::selection { background: var(--rouge); color: #FFFFFF; }

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* Page transitions */
.page-wrap {
  opacity: 0;
  animation: pageIn 0.7s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}
@keyframes pageIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
body.is-leaving .page-wrap {
  animation: pageOut 0.35s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}
@keyframes pageOut {
  to { opacity: 0; transform: translateY(-15px); }
}

/* Paper texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.12 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.4;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: multiply;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.25rem var(--pad);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(232, 232, 232, 0);
  backdrop-filter: blur(0);
  transition: all 0.4s ease;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-soft);
  padding: 0.75rem var(--pad);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.04);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.05em;
}

.nav-logo img {
  height: 44px;
  width: auto;
  transition: transform 0.4s ease;
}

.nav-logo:hover img { transform: rotate(-15deg); }

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.nav-logo-text .top { font-size: 0.95rem; color: var(--blanc); }

.nav-logo-text .bot {
  font-size: 0.65rem;
  color: var(--rouge);
  letter-spacing: 0.2em;
  font-family: var(--font-mono);
  font-weight: 500;
  margin-top: 3px;
}

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

.nav-menu a {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  position: relative;
  transition: color 0.3s ease;
  color: var(--blanc);
}

.nav-menu a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--rouge);
  transition: width 0.3s ease;
}

.nav-menu a:not(.nav-cta):hover::after,
.nav-menu a.active::after { width: 100%; }
.nav-menu a:not(.nav-cta):hover,
.nav-menu a.active { color: var(--rouge); }

.nav-cta {
  padding: 0.75rem 1.5rem;
  background: var(--rouge);
  color: #FFFFFF !important;
  font-weight: 700;
  letter-spacing: 0.1em !important;
  border: 1px solid var(--rouge);
  transition: all 0.3s ease;
  display: flex !important;
  align-items: center;
  gap: 0.5rem;
}

.nav-cta:hover {
  background: transparent;
  color: var(--rouge) !important;
  transform: translateY(-2px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
  position: relative;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--blanc);
  transition: all 0.3s ease;
}

@media (max-width: 900px) {
  .nav-menu {
    position: fixed;
    top: 0; right: -100%;
    height: 100vh;
    height: 100dvh;
    width: 85%;
    max-width: 360px;
    background: #FFFFFF;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 0 2.5rem;
    gap: 2rem;
    transition: right 0.4s cubic-bezier(0.77, 0, 0.18, 1);
    border-left: 1px solid var(--rouge);
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.15);
  }
  .nav-menu::before {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--rouge), transparent);
  }
  .nav-menu.open { right: 0; }
  .nav-menu a {
    font-size: 1.15rem;
    width: 100%;
    padding: 0.5rem 0;
  }
  .nav-menu a.nav-cta {
    margin-top: 1rem;
    width: auto;
    justify-content: center;
  }
  .nav-toggle { display: flex; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }
  .nav-backdrop.open {
    opacity: 1;
    pointer-events: auto;
  }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.1rem 2rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: 1px solid var(--blanc);
  background: var(--blanc);
  color: #FFFFFF;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--rouge);
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.77, 0, 0.18, 1);
  z-index: -1;
}

.btn:hover {
  color: #FFFFFF;
  border-color: var(--rouge);
}

.btn:hover::before { transform: translateY(0); }

.btn.btn-outline {
  background: transparent;
  color: var(--blanc);
  border: 1px solid var(--border-med);
}

.btn.btn-outline::before { background: var(--rouge); }
.btn.btn-outline:hover {
  border-color: var(--rouge);
  color: #FFFFFF;
}

.btn svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.btn:hover svg { transform: translateX(4px); }

@media (max-width: 480px) {
  .btn {
    padding: 0.95rem 1.5rem;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
  }
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  padding: clamp(4rem, 10vw, 8rem) var(--pad);
  position: relative;
}

.section-header {
  max-width: var(--max);
  margin: 0 auto 4rem;
  position: relative;
}

@media (min-width: 768px) {
  .section-header { margin-bottom: 5rem; }
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--rouge);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.section-eyebrow::before {
  content: '';
  width: 30px;
  height: 1px;
  background: var(--rouge);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 5rem);
  line-height: 0.95;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  max-width: 900px;
  color: var(--blanc);
}

.section-title .accent {
  color: var(--rouge);
  font-style: italic;
}

.section-intro {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--gris);
  max-width: 600px;
  margin-top: 1.5rem;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .section-intro { margin-top: 2rem; }
}

/* ============================================
   PAGE BANNER (inner pages)
   ============================================ */
.page-banner {
  min-height: 52vh;
  padding: 10rem var(--pad) 4rem;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at top right, rgba(225, 17, 44, 0.10), transparent 50%),
    radial-gradient(ellipse at bottom left, rgba(225, 17, 44, 0.05), transparent 60%),
    var(--noir);
  border-bottom: 1px solid var(--border-soft);
}

.page-banner-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 10, 10, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 10, 10, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  pointer-events: none;
}

.page-banner-bg-logo {
  position: absolute;
  right: -10%;
  top: 50%;
  transform: translateY(-50%);
  width: 55vw;
  max-width: 600px;
  opacity: 0.12;
  pointer-events: none;
  animation: slowSpin 60s linear infinite;
}

@keyframes slowSpin {
  from { transform: translateY(-50%) rotate(0deg); }
  to { transform: translateY(-50%) rotate(360deg); }
}

.page-banner-content {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
}

.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--rouge);
  background: rgba(225, 17, 44, 0.06);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  color: var(--gris-light);
}

.breadcrumb a { color: var(--gris); transition: color 0.3s; }
.breadcrumb a:hover { color: var(--rouge); }
.breadcrumb span { color: var(--rouge); }

.page-title {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 9vw, 7rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  color: var(--blanc);
}

.page-title .accent {
  color: var(--rouge);
  font-style: italic;
}

.page-subtitle {
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: var(--gris);
  max-width: 600px;
  line-height: 1.6;
}

/* ============================================
   FLOATING WHATSAPP
   ============================================ */
.fab-whatsapp {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 58px;
  height: 58px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 998;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
  transition: all 0.3s ease;
  animation: floatBtn 3s ease-in-out infinite;
}

.fab-whatsapp::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid #25D366;
  animation: ripple 2s linear infinite;
}

@keyframes ripple {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}

@keyframes floatBtn {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.fab-whatsapp:hover { transform: scale(1.1); }

.fab-whatsapp svg {
  width: 28px;
  height: 28px;
  fill: #FFFFFF;
}

@media (max-width: 600px) {
  .fab-whatsapp {
    width: 52px;
    height: 52px;
    bottom: 1rem;
    right: 1rem;
  }
  .fab-whatsapp svg { width: 24px; height: 24px; }
}

/* ============================================
   FOOTER (dark contrast block at bottom)
   ============================================ */
.footer {
  background: #0A0A0A;
  color: #FFFFFF;
  padding: 4rem var(--pad) 2rem;
  border-top: 3px solid var(--rouge);
}

.footer-grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 500px) {
  .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

.footer-brand img {
  height: 80px;
  width: auto;
  margin-bottom: 1.25rem;
}

.footer-brand p {
  color: #B8B8C0;
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--rouge);
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-col a {
  color: #B8B8C0;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.footer-col a:hover { color: var(--rouge); }

.footer-bottom {
  max-width: var(--max);
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: #5A5A60;
}

.footer-bottom .by { color: #8A8A92; }
.footer-bottom .by a { color: var(--rouge); font-weight: 600; transition: opacity 0.3s ease; }
.footer-bottom .by a:hover { opacity: 0.7; }

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.65, 0, 0.35, 1), transform 0.8s cubic-bezier(0.65, 0, 0.35, 1);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s cubic-bezier(0.65, 0, 0.35, 1), transform 0.8s cubic-bezier(0.65, 0, 0.35, 1);
}
.reveal-left.in-view { opacity: 1; transform: translateX(0); }

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s cubic-bezier(0.65, 0, 0.35, 1), transform 0.8s cubic-bezier(0.65, 0, 0.35, 1);
}
.reveal-right.in-view { opacity: 1; transform: translateX(0); }

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.65, 0, 0.35, 1), transform 0.7s cubic-bezier(0.65, 0, 0.35, 1);
}

.reveal-stagger.in-view > * { opacity: 1; transform: translateY(0); }
.reveal-stagger.in-view > *:nth-child(1) { transition-delay: 0.0s; }
.reveal-stagger.in-view > *:nth-child(2) { transition-delay: 0.08s; }
.reveal-stagger.in-view > *:nth-child(3) { transition-delay: 0.16s; }
.reveal-stagger.in-view > *:nth-child(4) { transition-delay: 0.24s; }
.reveal-stagger.in-view > *:nth-child(5) { transition-delay: 0.32s; }
.reveal-stagger.in-view > *:nth-child(6) { transition-delay: 0.4s; }
.reveal-stagger.in-view > *:nth-child(7) { transition-delay: 0.48s; }
.reveal-stagger.in-view > *:nth-child(8) { transition-delay: 0.56s; }
.reveal-stagger.in-view > *:nth-child(9) { transition-delay: 0.64s; }
.reveal-stagger.in-view > *:nth-child(10) { transition-delay: 0.72s; }
.reveal-stagger.in-view > *:nth-child(11) { transition-delay: 0.8s; }
.reveal-stagger.in-view > *:nth-child(12) { transition-delay: 0.88s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal, .reveal-left, .reveal-right, .reveal-stagger > * {
    opacity: 1 !important;
    transform: none !important;
  }
}