/* ==========================================================================
   Terrinova — Design System
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Variables
   -------------------------------------------------------------------------- */
:root {
  /* Core palette */
  --clr-dark:       #0B1520;
  --clr-darker:     #060E17;
  --clr-navy:       #112240;
  --clr-accent:     #00C9A7;
  --clr-accent-dk:  #00A88E;
  --clr-amber:      #F5A623;
  --clr-white:      #FFFFFF;
  --clr-light:      #F8FAFC;
  --clr-gray-100:   #F1F5F9;
  --clr-gray-200:   #E2E8F0;
  --clr-gray-300:   #CBD5E1;
  --clr-gray-500:   #64748B;
  --clr-gray-700:   #334155;
  --clr-text:       #1E293B;
  --clr-text-muted: #64748B;

  /* Service card accent colors */
  --clr-s1: #2563EB;
  --clr-s2: #7C3AED;
  --clr-s3: #059669;
  --clr-s4: #D97706;
  --clr-s5: #DC2626;
  --clr-s6: #0891B2;
  --clr-s7: #6366F1;
  --clr-s8: #16A34A;
  --clr-s9: #E11D48;

  /* Typography */
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Space Grotesk', 'Inter', sans-serif;

  /* Spacing */
  --section-py:   100px;
  --container-w:  1200px;
  --gap:          1.5rem;

  /* Borders */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Shadows */
  --shadow-sm:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:     0 4px 20px rgba(0,0,0,.08);
  --shadow-lg:     0 10px 40px rgba(0,0,0,.12);
  --shadow-accent: 0 0 30px rgba(0,201,167,.25);

  /* Transitions */
  --ease: cubic-bezier(.4, 0, .2, 1);
  --tr:   .3s var(--ease);
  --tr-slow: .5s var(--ease);
}

/* --------------------------------------------------------------------------
   2. Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--clr-text);
  background: var(--clr-white);
  line-height: 1.65;
  overflow-x: hidden;
}

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

:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

::selection {
  background: var(--clr-accent);
  color: var(--clr-dark);
}

/* --------------------------------------------------------------------------
   3. Layout Utilities
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section {
  padding-block: var(--section-py);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: rgba(0,201,167,.1);
  border: 1px solid rgba(0,201,167,.25);
  padding: .3rem .85rem;
  border-radius: 99px;
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3vw, 2.6rem);
  font-weight: 700;
  color: var(--clr-dark);
  line-height: 1.2;
  margin-bottom: .85rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   4. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .7rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .95rem;
  line-height: 1;
  transition: var(--tr);
  white-space: nowrap;
}

.btn-lg {
  padding: .875rem 2rem;
  font-size: 1rem;
}

.btn-sm {
  padding: .5rem 1.1rem;
  font-size: .875rem;
}

.btn-primary {
  background: var(--clr-accent);
  color: var(--clr-dark);
}
.btn-primary:hover {
  background: var(--clr-accent-dk);
  transform: translateY(-1px);
  box-shadow: var(--shadow-accent);
}

.btn-ghost {
  background: rgba(255,255,255,.1);
  color: var(--clr-white);
  border: 1px solid rgba(255,255,255,.25);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,.2);
  border-color: rgba(255,255,255,.4);
}

.btn-white {
  background: var(--clr-white);
  color: var(--clr-dark);
  font-weight: 700;
}
.btn-white:hover {
  background: var(--clr-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-full { width: 100%; justify-content: center; }

/* --------------------------------------------------------------------------
   5. Header & Navigation
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding-block: 1rem;
  transition: background var(--tr), box-shadow var(--tr), padding var(--tr);
}

.header.scrolled {
  background: rgba(11,21,32,.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255,255,255,.07);
  padding-block: .65rem;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.logo { display: flex; align-items: center; flex-shrink: 0; }
.logo-img {
  height: 42px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: opacity var(--tr);
}
.logo:hover .logo-img { opacity: .8; }

/* Nav */
.nav { flex: 1; }
.nav-list {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .5rem .8rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  transition: var(--tr);
}
.nav-link:hover, .nav-link.active {
  color: var(--clr-accent);
  background: rgba(255,255,255,.06);
}

/* Lien "Présentation" — mise en avant accent dans la nav */
.nav-link--accent {
  color: var(--clr-accent) !important;
  border: 1px solid rgba(0,201,167,.3);
  background: rgba(0,201,167,.07);
}
.nav-link--accent:hover {
  background: rgba(0,201,167,.15) !important;
  border-color: rgba(0,201,167,.55);
}

.nav-chevron {
  font-size: .7rem;
  transition: transform var(--tr);
}

/* Dropdown */
.nav-item-dropdown {
  position: relative;
}
.nav-item-dropdown:hover .nav-dropdown,
.nav-item-dropdown:focus-within .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.nav-item-dropdown:hover .nav-chevron {
  transform: rotate(180deg);
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + .5rem);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 220px;
  background: rgba(11,21,32,.97);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-md);
  padding: .5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--tr), transform var(--tr);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
}
.nav-dropdown li a {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .55rem .9rem;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  color: rgba(255,255,255,.8);
  transition: var(--tr);
}
.nav-dropdown li a:hover {
  background: rgba(0,201,167,.1);
  color: var(--clr-accent);
}
.nav-dropdown li a i { font-size: .9rem; width: 1rem; }

/* Header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-left: auto;
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  transition: background var(--tr);
}
.nav-toggle:hover { background: rgba(255,255,255,.08); }
.toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-white);
  border-radius: 99px;
  transition: transform var(--tr), opacity var(--tr);
  transform-origin: center;
}
.nav-toggle.open .toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open .toggle-bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open .toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   6. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--clr-darker);
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0,201,167,.07) 0%, transparent 60%),
              linear-gradient(to bottom, rgba(6,14,23,.2) 0%, rgba(6,14,23,.7) 100%);
}

.hero-body {
  position: relative;
  z-index: 1;
  padding-top: 100px;
  padding-bottom: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: rgba(0,201,167,.1);
  border: 1px solid rgba(0,201,167,.3);
  padding: .4rem 1rem;
  border-radius: 99px;
  margin-bottom: 1.75rem;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(0,201,167,.2);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 3px rgba(0,201,167,.2); }
  50%       { box-shadow: 0 0 0 6px rgba(0,201,167,.05); }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  color: var(--clr-white);
  line-height: 1.1;
  margin-bottom: 1.25rem;
  max-width: 850px;
}

.hero-accent {
  font-style: normal;
  background: linear-gradient(135deg, var(--clr-accent) 0%, #00E8C5 50%, var(--clr-amber) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,.7);
  margin-bottom: 2.25rem;
  max-width: 560px;
  line-height: 1.75;
}
.hero-subtitle span { display: block; margin-top: .25rem; opacity: .6; font-size: .95em; }

.hero-ctas {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3.5rem;
}

/* Hero stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: clamp(.75rem, 3vw, 2rem);
  flex-wrap: nowrap;
  justify-content: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .25rem;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  color: var(--clr-white);
  line-height: 1;
}

.stat-label {
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
}

.stat-sep {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,.15);
}

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .4rem;
  color: rgba(255,255,255,.45);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: color var(--tr);
  animation: bounce-hint 2.5s ease-in-out infinite;
  z-index: 1;
}
.hero-scroll-hint:hover { color: var(--clr-accent); }
.hero-scroll-hint i { font-size: 1.1rem; }

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

/* --------------------------------------------------------------------------
   7. About Section
   -------------------------------------------------------------------------- */
.about-section { background: var(--clr-white); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text-col .section-tag { text-align: left; }

.about-lead {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--clr-text);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.about-body {
  color: var(--clr-text-muted);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.about-pillars {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.pillar {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--clr-gray-100);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--clr-accent);
  transition: var(--tr);
}
.pillar:hover {
  background: rgba(0,201,167,.06);
  transform: translateX(4px);
}

.pillar-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(0,201,167,.12);
  color: var(--clr-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.pillar-body h4 {
  font-size: .95rem;
  font-weight: 600;
  color: var(--clr-dark);
  margin-bottom: .15rem;
}
.pillar-body p {
  font-size: .85rem;
  color: var(--clr-text-muted);
  margin: 0;
}

/* About visual */
.about-visual {
  position: relative;
  padding: 1.5rem;
}

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

.visual-card {
  background: var(--clr-gray-100);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: .6rem;
  transition: var(--tr);
  border: 1px solid var(--clr-gray-200);
}
.visual-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.visual-card i {
  font-size: 1.75rem;
  color: var(--clr-accent);
}
.visual-card p {
  font-size: .82rem;
  font-weight: 600;
  color: var(--clr-gray-700);
  line-height: 1.4;
  margin: 0;
}

.visual-card--accent {
  background: var(--clr-accent);
}
.visual-card--accent i,
.visual-card--accent p { color: var(--clr-dark); }

.visual-card--dark {
  background: var(--clr-navy);
}
.visual-card--dark i { color: var(--clr-accent); }
.visual-card--dark p { color: rgba(255,255,255,.85); }

.visual-badge {
  margin-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  background: var(--clr-dark);
  color: var(--clr-white);
  padding: .75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  font-weight: 500;
}
.visual-badge i { color: var(--clr-accent); font-size: 1rem; }

/* --------------------------------------------------------------------------
   8. Services Section
   -------------------------------------------------------------------------- */
.services-section { background: var(--clr-gray-100); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.service-card {
  background: var(--clr-white);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  border: 1px solid var(--clr-gray-200);
  border-top: 3px solid var(--card-accent, var(--clr-accent));
  transition: var(--tr);
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--card-accent, var(--clr-accent));
}

.service-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--card-accent, var(--clr-accent)) 12%, transparent);
  color: var(--card-accent, var(--clr-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 1rem;
  transition: var(--tr);
}
.service-card:hover .service-icon-wrap {
  background: var(--card-accent, var(--clr-accent));
  color: var(--clr-white);
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clr-dark);
  margin-bottom: .35rem;
}

.service-tagline {
  font-size: .82rem;
  color: var(--clr-text-muted);
  font-style: italic;
  margin-bottom: 1rem;
}

.service-items {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .4rem;
  margin-bottom: 1.25rem;
}
.service-items li {
  display: flex;
  align-items: center;
  gap: .2rem;
  font-size: .875rem;
  color: var(--clr-gray-700);
}
.service-items li i {
  color: var(--card-accent, var(--clr-accent));
  font-size: 1.1rem;
  flex-shrink: 0;
}

.service-cta {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .85rem;
  font-weight: 600;
  color: var(--card-accent, var(--clr-accent));
  margin-top: auto;
  transition: gap var(--tr);
}
.service-card:hover .service-cta { gap: .6rem; }

/* --------------------------------------------------------------------------
   9. CTA Band
   -------------------------------------------------------------------------- */
.cta-band {
  background: linear-gradient(135deg, var(--clr-dark) 0%, var(--clr-navy) 100%);
  padding-block: 5rem;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,201,167,.08) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.cta-band-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cta-band-text h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: .5rem;
}
.cta-band-text p {
  color: rgba(255,255,255,.65);
  font-size: 1rem;
}

/* --------------------------------------------------------------------------
   10. Publications Section
   -------------------------------------------------------------------------- */
.publications-section { background: var(--clr-white); }

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

.pub-card {
  background: var(--clr-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--clr-gray-200);
  transition: var(--tr);
  display: flex;
  flex-direction: column;
}
.pub-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pub-cover {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--clr-gray-100);
}
.pub-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--tr-slow);
}
.pub-card:hover .pub-cover img { transform: scale(1.05); }

.pub-body {
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.pub-meta {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: .75rem;
}

.pub-type {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: .2rem .6rem;
  border-radius: 99px;
  background: rgba(0,201,167,.12);
  color: var(--clr-accent-dk);
}

.pub-year {
  font-size: .75rem;
  color: var(--clr-text-muted);
}

.pub-title {
  font-family: var(--font-heading);
  font-size: .975rem;
  font-weight: 600;
  color: var(--clr-dark);
  line-height: 1.45;
  margin-bottom: .75rem;
}

.pub-authors {
  font-size: .82rem;
  color: var(--clr-text-muted);
  margin-bottom: .5rem;
}

.pub-venue {
  font-size: .8rem;
  color: var(--clr-accent-dk);
  font-style: italic;
  margin-bottom: 1rem;
}

.pub-tags {
  display: flex;
  gap: .4rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.pub-tag {
  font-size: .7rem;
  font-weight: 500;
  padding: .2rem .55rem;
  border-radius: var(--radius-xs);
  background: var(--clr-gray-100);
  color: var(--clr-gray-700);
}

.pub-actions {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-top: auto;
}

.pub-link {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .82rem;
  font-weight: 600;
  color: var(--clr-accent-dk);
  transition: gap var(--tr);
}
.pub-link:hover { gap: .55rem; }
.pub-link--doi { color: var(--clr-text-muted); font-weight: 400; }
.pub-link--doi:hover { color: var(--clr-accent); }

.loading-state {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 3rem;
  color: var(--clr-text-muted);
  font-size: 1.5rem;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --------------------------------------------------------------------------
   11. Team Section
   -------------------------------------------------------------------------- */
.team-section { background: var(--clr-gray-100); }

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.team-card {
  background: var(--clr-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--clr-gray-200);
  transition: var(--tr);
  text-align: center;
}
.team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.team-photo-wrap {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--clr-gray-200);
}
.team-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--tr-slow);
}
.team-card:hover .team-photo-wrap img { transform: scale(1.05); }

.team-overlay {
  position: absolute;
  inset: 0;
  background: rgba(11,21,32,.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--tr);
}
.team-card:hover .team-overlay { opacity: 1; }

.team-overlay a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--clr-accent);
  color: var(--clr-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .95rem;
  transition: transform var(--tr);
}
.team-overlay a:hover { transform: scale(1.15); }

.team-info {
  padding: 1rem;
}

.team-name {
  font-family: var(--font-heading);
  font-size: .95rem;
  font-weight: 700;
  color: var(--clr-dark);
  margin-bottom: .2rem;
}

.team-role {
  font-size: .8rem;
  color: var(--clr-text-muted);
}

/* --------------------------------------------------------------------------
   12. Contact Section
   -------------------------------------------------------------------------- */
.contact-section { background: var(--clr-white); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 4rem;
  align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(0,201,167,.1);
  color: var(--clr-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: .85rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .2rem;
}
.contact-item p, .contact-item a {
  font-size: .95rem;
  color: var(--clr-text);
}
.contact-item a:hover { color: var(--clr-accent); }

.contact-social {
  display: flex;
  gap: .75rem;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--clr-gray-300);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--clr-text-muted);
  transition: var(--tr);
}
.social-link:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  background: rgba(0,201,167,.06);
  transform: translateY(-2px);
}

/* Contact form */
.contact-form-wrap {
  background: var(--clr-gray-100);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--clr-gray-200);
}

.contact-form { display: flex; flex-direction: column; gap: 1.1rem; }

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

.form-field {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.form-field label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--clr-gray-700);
}
.form-field label span { color: var(--clr-accent); }

.form-field input,
.form-field textarea {
  width: 100%;
  padding: .75rem 1rem;
  border: 1.5px solid var(--clr-gray-300);
  border-radius: var(--radius-sm);
  background: var(--clr-white);
  color: var(--clr-text);
  font-size: .9rem;
  transition: border-color var(--tr), box-shadow var(--tr);
  resize: vertical;
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(0,201,167,.12);
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--clr-gray-300); }

.form-field input.invalid,
.form-field textarea.invalid {
  border-color: #EF4444;
}
.form-field input.invalid:focus,
.form-field textarea.invalid:focus {
  box-shadow: 0 0 0 3px rgba(239,68,68,.12);
}

.field-error {
  font-size: .78rem;
  color: #EF4444;
  min-height: 1em;
}

.form-feedback {
  text-align: center;
  font-size: .9rem;
  padding: .75rem 1rem;
  border-radius: var(--radius-sm);
  min-height: 1.5rem;
}
.form-feedback.success {
  background: rgba(0,201,167,.1);
  color: var(--clr-accent-dk);
  border: 1px solid rgba(0,201,167,.3);
}
.form-feedback.error {
  background: rgba(239,68,68,.08);
  color: #DC2626;
  border: 1px solid rgba(239,68,68,.25);
}

/* Map wrapper */
.contact-map-wrap {
  position: relative;
  margin-top: 3rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--clr-gray-200);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 21 / 7;
  transition: box-shadow var(--tr), transform var(--tr);
  background: var(--clr-navy);
}
.contact-map-wrap:hover {
  box-shadow: 0 12px 48px rgba(0,201,167,.15);
  transform: translateY(-2px);
}

/* Live iframe (injected via JS) */
.contact-map-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  display: block;
  filter: grayscale(15%) contrast(1.05);
  transition: filter var(--tr);
}
.contact-map-wrap:hover iframe {
  filter: grayscale(0%) contrast(1);
}

/* Placeholder shown before user clicks */
.map-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-navy);
  cursor: pointer;
  transition: opacity var(--tr);
}
.map-placeholder.hidden {
  opacity: 0;
  pointer-events: none;
}

/* Subtle grid background mimicking a map */
.map-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,201,167,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,201,167,.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

.map-placeholder-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .85rem;
  text-align: center;
  padding: 1.5rem;
}

/* Animated pin */
.map-pin-anim {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(0,201,167,.12);
  border: 1px solid rgba(0,201,167,.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--clr-accent);
  animation: pin-pulse 2.4s ease-in-out infinite;
}
@keyframes pin-pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(0,201,167,.25),
                0 0 0 0 rgba(0,201,167,.1);
  }
  50% {
    box-shadow: 0 0 0 14px rgba(0,201,167,.06),
                0 0 0 28px rgba(0,201,167,.02);
  }
}

.map-location-label {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-white);
  margin: 0;
}

.map-hint {
  font-size: .75rem;
  color: rgba(255,255,255,.35);
  letter-spacing: .04em;
}

/* Badge (always visible, over placeholder & iframe) */
.map-badge {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(11,21,32,.88);
  color: var(--clr-white);
  padding: .55rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.1);
  pointer-events: none;
  z-index: 2;
}
.map-badge i {
  color: var(--clr-accent);
  font-size: 1rem;
}

@media (max-width: 768px) {
  .contact-map-wrap { aspect-ratio: 4 / 3; margin-top: 2rem; }
  .map-pin-anim { width: 52px; height: 52px; font-size: 1.4rem; }
}

/* --------------------------------------------------------------------------
   13. Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--clr-darker);
  padding-block: 4rem 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
  margin-bottom: 1.5rem;
}

.footer-brand p {
  font-size: .875rem;
  color: rgba(255,255,255,.5);
  line-height: 1.7;
  margin-top: 1rem;
  margin-bottom: 1.25rem;
}

.footer-logo {
  height: 38px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: .85;
}

.footer-social {
  display: flex;
  gap: .6rem;
}
.footer-social a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.15);
  color: rgba(255,255,255,.5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .875rem;
  transition: var(--tr);
}
.footer-social a:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  background: rgba(0,201,167,.1);
}

.footer-col h5 {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.8);
  margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: .5rem; }
.footer-col ul a {
  font-size: .875rem;
  color: rgba(255,255,255,.45);
  transition: color var(--tr);
}
.footer-col ul a:hover { color: var(--clr-accent); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
}
.footer-bottom p {
  font-size: .8rem;
  color: rgba(255,255,255,.3);
}
.footer-legal { font-style: italic; }

/* --------------------------------------------------------------------------
   14. Scroll-to-top button
   -------------------------------------------------------------------------- */
.scroll-top-btn {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--clr-accent);
  color: var(--clr-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 4px 16px rgba(0,201,167,.35);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity var(--tr), transform var(--tr), background var(--tr);
  z-index: 900;
}
.scroll-top-btn.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.scroll-top-btn:hover {
  background: var(--clr-accent-dk);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   15. AOS custom overrides
   -------------------------------------------------------------------------- */
[data-aos] { will-change: transform, opacity; }

/* --------------------------------------------------------------------------
   16. About Extended — Notre entreprise
   -------------------------------------------------------------------------- */
.about-ext-section { background: var(--clr-gray-100); }

.mission-quote {
  position: relative;
  background: var(--clr-white);
  border: 1px solid var(--clr-gray-200);
  border-left: 4px solid var(--clr-accent);
  border-radius: var(--radius-md);
  padding: 2rem 2rem 2rem 3rem;
  margin-bottom: 3rem;
}
.mission-quote > i {
  position: absolute;
  top: 1.25rem;
  left: 1rem;
  font-size: 1.5rem;
  color: var(--clr-accent);
  opacity: .6;
}
.mission-quote blockquote {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 500;
  color: var(--clr-dark);
  line-height: 1.6;
  font-style: italic;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.value-card {
  background: var(--clr-white);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  border: 1px solid var(--clr-gray-200);
  transition: var(--tr);
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--clr-accent);
}

.value-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(0,201,167,.1);
  color: var(--clr-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
  transition: var(--tr);
}
.value-card:hover .value-icon {
  background: var(--clr-accent);
  color: var(--clr-dark);
}

.value-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-dark);
}
.value-card p {
  font-size: .875rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin: 0;
}

/* --------------------------------------------------------------------------
   17. Clientèle — Qui peut nous contacter
   -------------------------------------------------------------------------- */
.clientele-section { background: var(--clr-white); }

.clientele-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.clientele-card {
  background: var(--clr-gray-100);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  border: 1px solid var(--clr-gray-200);
  transition: var(--tr);
  display: flex;
  flex-direction: column;
  gap: .85rem;
}
.clientele-card:hover {
  background: var(--clr-white);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--clr-accent);
}

.clientele-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  background: rgba(0,201,167,.1);
  color: var(--clr-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
  transition: var(--tr);
}
.clientele-card:hover .clientele-icon {
  background: var(--clr-accent);
  color: var(--clr-dark);
}

.clientele-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-dark);
}
.clientele-card > p {
  font-size: .875rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
}
.clientele-card ul {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  margin-top: auto;
  padding-top: .5rem;
  border-top: 1px solid var(--clr-gray-200);
}
.clientele-card ul li {
  font-size: .8rem;
  color: var(--clr-gray-500);
  padding-left: .9rem;
  position: relative;
}
.clientele-card ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--clr-accent);
  font-size: .7rem;
}

.clientele-cta {
  text-align: center;
  background: var(--clr-gray-100);
  border: 1px solid var(--clr-gray-200);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.clientele-cta p {
  font-size: 1rem;
  color: var(--clr-text-muted);
  text-align: left;
  max-width: 600px;
  margin: 0;
}

/* --------------------------------------------------------------------------
   18. Partners — Nos partenaires
   -------------------------------------------------------------------------- */
.partners-section { background: var(--clr-darker); padding-block: 80px; }
.partners-section .section-tag { color: var(--clr-accent); }
.partners-section .section-title { color: var(--clr-white); }
.partners-section .section-subtitle { color: rgba(255,255,255,.55); }

.partners-track-wrap {
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}

.partners-track {
  display: flex;
  gap: 1.5rem;
  width: max-content;
  animation: partners-scroll 28s linear infinite;
}
.partners-track:hover { animation-play-state: paused; }

@keyframes partners-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.partner-item {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.96);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-sm);
  padding: 1rem 2rem;
  flex-shrink: 0;
  transition: var(--tr);
  cursor: default;
}
.partner-item:hover {
  background: #fff;
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(0,201,167,.25);
  border-color: var(--clr-accent);
}

.partner-item img {
  height: 56px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  display: block;
  transition: filter var(--tr);
}

/* --------------------------------------------------------------------------
   19. Responsive — Tablet (≤ 1024px)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  :root { --section-py: 75px; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .about-visual-col { order: -1; }
  .visual-grid { max-width: 400px; margin-inline: auto; }

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

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

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

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

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-brand { grid-column: 1 / -1; }
}

/* --------------------------------------------------------------------------
   17. Responsive — Mobile (≤ 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  :root { --section-py: 60px; }

  /* Header mobile */
  .nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(6,14,23,.98);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    transform: translateX(-100%);
    transition: transform var(--tr-slow);
    z-index: 998;
  }
  .nav.open { transform: translateX(0); }

  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: .75rem;
    width: 100%;
  }
  .nav-link {
    font-size: 1.1rem;
    padding: .75rem 1.5rem;
    text-align: center;
  }

  .nav-item-dropdown { width: 100%; text-align: center; }
  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    pointer-events: auto;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.08);
    margin-top: .5rem;
    display: none;
  }
  .nav-item-dropdown.open .nav-dropdown { display: block; }

  .nav-toggle { display: flex; z-index: 999; }
  .header-actions .btn-sm { display: none; }

  /* Hero */
  .hero-title { font-size: clamp(2rem, 8vw, 3.5rem); }
  .hero-stats { gap: 1.25rem; }
  .stat-sep { height: 28px; }
  .stat-value { font-size: 1.8rem; }

  /* About */
  .about-pillars { gap: .75rem; }

  /* Services */
  .services-grid { grid-template-columns: 1fr; }

  /* Values / À propos étendu */
  .values-grid { grid-template-columns: 1fr; }
  .mission-quote { padding: 1.5rem 1.5rem 1.5rem 2.5rem; }

  /* CTA */
  .cta-band-inner { text-align: center; justify-content: center; }

  /* Clientèle */
  .clientele-grid { grid-template-columns: 1fr; }
  .clientele-cta { text-align: center; justify-content: center; }
  .clientele-cta p { text-align: center; }

  /* Publications */
  .publications-grid { grid-template-columns: 1fr; }

  /* Contact */
  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 1.5rem; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { justify-content: center; text-align: center; }
}

/* --------------------------------------------------------------------------
   18. Responsive — Small mobile (≤ 480px)
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
  :root { --section-py: 50px; }
  .hero-ctas { flex-direction: column; width: 100%; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .hero-stats { flex-direction: column; gap: 1rem; }
  .stat-sep { display: none; }
  .team-grid { grid-template-columns: 1fr; }
  .about-grid, .contact-grid { gap: 2rem; }
}

/* --------------------------------------------------------------------------
   19. Print styles (minimal)
   -------------------------------------------------------------------------- */
@media print {
  .header, .scroll-top-btn, .hero-canvas, .hero-overlay, .nav-toggle { display: none; }
  .hero { min-height: auto; padding-block: 2rem; }
  body { color: #000; background: #fff; }
}