/* ═══════════════════════════════════════════
   AREPROG — Design System v3 "Humain"
   Google Fonts chargées via <link> dans le <head> HTML
   (preconnect + display=swap — plus de @import bloquant)
   ═══════════════════════════════════════════ */

:root {
  /* Palette — un peu plus chaude que v2 */
  --bg:         #0d0e10;
  --bg-warm:    #111214;
  --surface:    #17181b;
  --surface2:   #1d1f22;
  --surface3:   #232529;
  --border:     #26282c;
  --border2:    #32353a;

  --blue:       #2196F3;
  --blue-light: #42A5F5;
  --blue-dark:  #1565C0;
  --blue-dim:   rgba(33,150,243,.1);
  --blue-glow:  rgba(33,150,243,.25);

  --text:       #eceef1;
  --text2:      #c8cdd4;
  --muted:      #7c8490;
  --muted2:     #555b64;

  --amber:      #F59E0B;
  --green:      #34D399;
  --red:        #F87171;
  --orange:     #FB923C;

  /* Type */
  --font-display: 'Barlow Condensed', sans-serif;
  --font-body:    'Barlow', sans-serif;
  --font-mono:    'Barlow Condensed', sans-serif;

  /* Spacing */
  --nav-h: 64px;
  --radius: 3px;
  --radius-lg: 8px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Subtle grain */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  background-size: 256px;
  pointer-events: none;
  z-index: 9998;
  opacity: .6;
}

/* ══════════════════════════════════════════
   TYPOGRAPHY HELPERS
══════════════════════════════════════════ */
.display {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: .92;
  letter-spacing: -.01em;
  text-transform: uppercase;
}
.display em {
  font-style: italic;
  font-weight: 300;
  color: var(--blue-light);
}

.label {
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--blue);
}
.label::before {
  content: '— ';
  opacity: .5;
}

/* Body text */
p { color: var(--text2); line-height: 1.75; }
p + p { margin-top: .9rem; }
strong { color: var(--text); font-weight: 500; }
a { color: var(--blue-light); }

/* ══════════════════════════════════════════
   NAV
══════════════════════════════════════════ */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 500;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2.5rem;
  background: rgba(13,14,16,.92);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: background .3s;
}

.nav-logo {
  font-family: var(--font-mono);
  font-weight: 800; font-size: 1.35rem;
  letter-spacing: .1em;
  color: var(--text); text-decoration: none;
  flex-shrink: 0;
}
.nav-logo span { color: var(--blue); }

.nav-links {
  display: flex; align-items: center; gap: 0;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-body);
  font-weight: 400; font-size: .82rem;
  color: var(--muted); text-decoration: none;
  padding: .5rem 1rem;
  transition: color .2s;
  position: relative;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: '';
  position: absolute; bottom: -1px;
  left: 1rem; right: 1rem;
  height: 2px;
  background: var(--blue);
  border-radius: 2px;
}

.nav-badge {
  font-family: var(--font-mono);
  font-size: .55rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--amber); border: 1px solid rgba(245,158,11,.4);
  padding: .1rem .35rem; border-radius: 2px;
  margin-left: .3rem; vertical-align: middle;
}

.nav-cta {
  font-family: var(--font-body);
  font-size: .85rem; font-weight: 500;
  color: #fff;
  background: var(--blue);
  border: none; padding: .5rem 1.2rem;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background .2s, box-shadow .2s;
  white-space: nowrap; flex-shrink: 0;
}
.nav-cta:hover {
  background: var(--blue-light);
  box-shadow: 0 4px 20px var(--blue-dim);
  color: #fff;
}

.nav-burger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: .4rem;
  background: none; border: none;
  color: inherit; font: inherit;
  -webkit-appearance: none; appearance: none;
}
.nav-burger:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  border-radius: var(--radius);
}
.nav-burger span {
  display: block; width: 22px; height: 1.5px;
  background: var(--text); transition: all .3s;
  border-radius: 2px;
}

/* Mobile nav */
.nav-mobile {
  display: none;
  position: fixed; top: var(--nav-h); left: 0; right: 0;
  /* clamp height so it doesn't overflow screen and is scrollable */
  max-height: calc(100vh - var(--nav-h));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  z-index: 499; padding: .5rem 0;
  box-shadow: 0 16px 40px rgba(0,0,0,.5);
  overscroll-behavior: contain;
}
.nav-mobile.open { display: block; }
.nav-mobile a {
  display: block; padding: .85rem 1.5rem;
  font-family: var(--font-body); font-size: .92rem;
  color: var(--muted); text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: color .15s, background .15s;
}
.nav-mobile a:hover { color: var(--text); background: var(--surface2); }
.nav-mobile a.active { color: var(--blue); }

/* Dropdown zones */
.nav-dropdown { position: relative; }
.nav-dropdown-menu {
  display: none; position: absolute;
  top: calc(100% + 8px); left: 50%;
  transform: translateX(-50%);
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  min-width: 210px; list-style: none; z-index: 600;
  box-shadow: 0 12px 40px rgba(0,0,0,.5);
  overflow: hidden;
  padding: .4rem 0;
}
.nav-dropdown-menu.open { display: block; animation: fadeUp .15s ease; }
.nav-dropdown-menu li a {
  display: block; padding: .6rem 1.1rem;
  font-size: .85rem; color: var(--muted);
  text-decoration: none;
  transition: color .15s, background .15s;
  border-bottom: none;
}
.nav-dropdown-menu li a:hover { color: var(--text); background: var(--surface3); }
.dropdown-group-label {
  padding: .6rem 1.1rem .2rem;
  font-family: var(--font-mono); font-size: .6rem; font-weight: 700;
  letter-spacing: .2em; text-transform: uppercase; color: var(--blue);
}
.dropdown-divider { height: 1px; background: var(--border); margin: .3rem 0; }

/* Mobile groups */
.nav-mobile-group { border-bottom: 1px solid var(--border); }
.nav-mobile-group-label {
  padding: .7rem 1.5rem .2rem;
  font-family: var(--font-mono); font-size: .6rem; font-weight: 700;
  letter-spacing: .2em; text-transform: uppercase; color: var(--blue);
}
.nav-mobile-sub {
  display: block; padding: .6rem 1.5rem .6rem 2.2rem;
  font-size: .88rem; color: var(--muted); text-decoration: none;
  transition: color .15s;
}
.nav-mobile-sub:hover { color: var(--text); }

/* ══════════════════════════════════════════
   SECTION LAYOUT
══════════════════════════════════════════ */
.page-wrap { padding-top: var(--nav-h); }
section { padding: 6rem 5rem; }

.section-label {
  font-family: var(--font-mono);
  font-size: .68rem; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 1rem;
  display: flex; align-items: center; gap: .7rem;
}
.section-label::before {
  content: ''; display: block;
  width: 24px; height: 1px;
  background: var(--blue); border-radius: 1px;
}

/* Alias for old .section-tag */
.section-tag {
  font-family: var(--font-mono);
  font-size: .68rem; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 1rem;
  display: flex; align-items: center; gap: .7rem;
}
.section-tag::before {
  content: ''; display: block;
  width: 24px; height: 1px;
  background: var(--blue); border-radius: 1px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  text-transform: uppercase;
  line-height: .95;
  letter-spacing: -.01em;
  color: var(--text);
}
.section-title em {
  font-style: italic; font-weight: 300;
  color: var(--blue-light);
}

/* ══════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════ */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--font-display);
  font-weight: 700; font-size: .82rem;
  letter-spacing: .12em; text-transform: uppercase;
  padding: .8rem 2rem;
  text-decoration: none;
  border-radius: var(--radius);
  transition: all .2s;
  cursor: pointer; border: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue); color: #fff;
}
.btn-primary:hover {
  background: var(--blue-light);
  box-shadow: 0 6px 24px var(--blue-glow);
  color: #fff;
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--border2); color: var(--muted);
}
.btn-outline:hover { border-color: var(--text2); color: var(--text); }
.btn-blue-outline {
  background: transparent;
  border: 1px solid rgba(33,150,243,.4); color: var(--blue-light);
}
.btn-blue-outline:hover { background: var(--blue-dim); }

/* ══════════════════════════════════════════
   CARDS — generic warm card
══════════════════════════════════════════ */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color .25s, background .25s, transform .25s;
}
.card:hover {
  border-color: var(--border2);
  background: var(--surface2);
  transform: translateY(-2px);
}

/* ══════════════════════════════════════════
   PILL / TAG CHIPS
══════════════════════════════════════════ */
.chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .62rem; font-weight: 700;
  letter-spacing: .15em; text-transform: uppercase;
  padding: .3rem .75rem;
  border-radius: 100px;
  border: 1px solid var(--border2);
  color: var(--muted);
}
.chip.blue {
  border-color: rgba(33,150,243,.35);
  color: var(--blue-light);
  background: rgba(33,150,243,.06);
}

/* ══════════════════════════════════════════
   DIVIDER
══════════════════════════════════════════ */
.divider {
  width: 100%; height: 1px;
  background: linear-gradient(to right, transparent, var(--border), transparent);
  border: none; margin: 0;
}

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
footer { display: block; border-top: 1px solid var(--border); }

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 3rem; padding: 4rem 5rem;
  border-bottom: 1px solid var(--border);
}
.footer-logo {
  font-family: var(--font-mono);
  font-weight: 800; font-size: 1.3rem; letter-spacing: .1em;
  color: var(--text); text-decoration: none;
  display: inline-block; margin-bottom: .9rem;
}
.footer-logo span { color: var(--blue); }
.footer-brand p {
  font-size: .85rem; color: var(--muted);
  line-height: 1.65; margin-bottom: 1rem; max-width: 260px;
}
.footer-tel {
  font-family: var(--font-body);
  font-weight: 500; font-size: .88rem;
  color: var(--blue-light); text-decoration: none;
  transition: color .2s;
}
.footer-tel:hover { color: var(--text); }
.footer-col-title {
  font-family: var(--font-mono);
  font-size: .62rem; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--muted2); margin-bottom: 1.1rem;
}
.footer-col a {
  display: block; font-size: .85rem; color: var(--muted);
  text-decoration: none; margin-bottom: .5rem;
  transition: color .2s;
}
.footer-col a:hover { color: var(--text2); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.4rem 5rem;
  font-size: .75rem; color: var(--muted2);
}
.footer-bottom-links { display: flex; gap: 1.5rem; }
.footer-bottom-links a {
  color: var(--muted2); text-decoration: none; transition: color .2s;
}
.footer-bottom-links a:hover { color: var(--text); }

/* ══════════════════════════════════════════
   ANIMATIONS
══════════════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; } to { opacity: 1; }
}
@keyframes pulse {
  0%,100% { opacity: .3; } 50% { opacity: .9; }
}
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* Scroll-triggered reveal */
.reveal {
  opacity: 0; transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
  opacity: 1; transform: translateY(0);
}

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 1024px) {
  section { padding: 5rem 3rem; }
  .footer-top { gap: 2rem; padding: 3rem; }
  .footer-bottom { padding: 1.2rem 3rem; }
}

@media (max-width: 900px) {
  nav { padding: 0 1.2rem; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-burger { display: flex; }
  section { padding: 4rem 1.4rem; }
  .footer-top { grid-template-columns: 1fr 1fr; padding: 2.5rem 1.4rem; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: .8rem; padding: 1.2rem 1.4rem; text-align: center; }
  .footer-bottom-links { flex-wrap: wrap; justify-content: center; }
  .nav-dropdown-menu { left: 0; transform: none; }
}

@media (max-width: 500px) {
  .footer-top { grid-template-columns: 1fr; }
  section { padding: 3.5rem 1.2rem; }
}

/* ══════════════════════════════════════
   BARRE D'APPEL MOBILE STICKY (toutes pages)
══════════════════════════════════════ */
.mobile-call-bar {
  display: none;
}
@media (max-width: 768px) {
  .mobile-call-bar {
    display: flex;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 8000;
    background: #34D399;
    color: #0d1410;
    text-decoration: none;
    align-items: center;
    justify-content: center;
    gap: .6rem;
    padding: 1rem 1.5rem;
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: .05em;
    text-transform: uppercase;
    box-shadow: 0 -4px 24px rgba(52,211,153,.25);
    border-top: 1px solid rgba(52,211,153,.3);
    transition: background .15s;
  }
  .mobile-call-bar:active { background: #6EE7B7; }
  .mobile-call-bar-sub {
    font-size: .65rem;
    font-weight: 400;
    font-family: 'Barlow', sans-serif;
    letter-spacing: .08em;
    opacity: .75;
    display: block;
    text-transform: none;
  }
  footer { padding-bottom: 4.5rem !important; }
}
