/* =========================================================
   YK COMMUNICATION — Design System
   Charte : Bleu marine + Rouge + Blanc + Gris
   ========================================================= */

/* ---------- Fonts ---------- */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/inter-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/inter-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/inter-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/inter-700.woff2') format('woff2');
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/space-grotesk-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/space-grotesk-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/space-grotesk-700.woff2') format('woff2');
}

/* ---------- Variables ---------- */
:root {
  /* Palette YK */
  --yk-navy:        #1B1F5C;
  --yk-navy-dark:   #12153F;
  --yk-navy-light:  #2A2F7A;
  --yk-red:         #E31E24;
  --yk-red-dark:    #B8171C;
  --yk-red-light:   #F04148;

  /* Neutrals */
  --white:          #FFFFFF;
  --gray-50:        #F8FAFC;
  --gray-100:       #F1F5F9;
  --gray-150:       #E8ECF2;
  --gray-200:       #E2E8F0;
  --gray-300:       #CBD5E1;
  --gray-400:       #94A3B8;
  --gray-500:       #64748B;
  --gray-600:       #475569;
  --gray-700:       #334155;
  --gray-800:       #1E293B;
  --gray-900:       #0F172A;

  /* Semantic */
  --bg:             var(--white);
  --bg-alt:         var(--gray-50);
  --bg-dark:        var(--yk-navy);
  --text:           var(--gray-900);
  --text-muted:     var(--gray-500);
  --text-inverse:   var(--white);
  --border:         var(--gray-200);

  --primary:        var(--yk-navy);
  --primary-hover:  var(--yk-navy-dark);
  --accent:         var(--yk-red);
  --accent-hover:   var(--yk-red-dark);

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

  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-md:   1.125rem;
  --fs-lg:   1.25rem;
  --fs-xl:   1.5rem;
  --fs-2xl:  2rem;
  --fs-3xl:  2.5rem;
  --fs-4xl:  3.25rem;
  --fs-5xl:  4rem;

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Radius */
  --radius-sm:  4px;
  --radius:     8px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:   0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow:      0 2px 8px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-md:   0 6px 20px rgba(15, 23, 42, 0.08), 0 3px 6px rgba(15, 23, 42, 0.05);
  --shadow-lg:   0 16px 40px rgba(15, 23, 42, 0.12), 0 6px 12px rgba(15, 23, 42, 0.08);
  --shadow-xl:   0 24px 60px rgba(15, 23, 42, 0.18), 0 10px 20px rgba(15, 23, 42, 0.1);

  /* Transitions */
  --tr-fast:   150ms ease;
  --tr:        250ms cubic-bezier(0.4, 0, 0.2, 1);
  --tr-slow:   400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --container:      1200px;
  --container-wide: 1400px;
  --header-height:  76px;
}

/* ---------- Reset ---------- */
*, *::before, *::after {
  box-sizing: border-box;
}
* {
  margin: 0;
  padding: 0;
}
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
}
body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--tr-fast);
}
a:hover {
  color: var(--accent);
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2rem, 4vw + 1rem, var(--fs-5xl)); }
h2 { font-size: clamp(1.75rem, 3vw + 0.5rem, var(--fs-3xl)); }
h3 { font-size: clamp(1.375rem, 2vw + 0.5rem, var(--fs-2xl)); }
h4 { font-size: var(--fs-xl); }
p { line-height: 1.7; }
ul, ol { list-style: none; }

::selection {
  background: var(--yk-navy);
  color: var(--white);
}

/* ---------- Layout utils ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.section {
  padding-block: clamp(var(--space-16), 6vw, var(--space-24));
}
.section-sm {
  padding-block: clamp(var(--space-12), 4vw, var(--space-16));
}
.section-alt {
  background: var(--bg-alt);
}
.section-dark {
  background: var(--bg-dark);
  color: var(--text-inverse);
}
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 {
  color: var(--white);
}

main {
  flex: 1;
  padding-top: var(--header-height);
}

/* ---------- Typography helpers ---------- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
  position: relative;
  padding-left: var(--space-8);
}
.eyebrow::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 24px;
  height: 2px;
  background: var(--accent);
  transform: translateY(-50%);
}
.section-header {
  max-width: 800px;
  margin-bottom: var(--space-12);
}
.section-header.centered {
  margin-inline: auto;
  text-align: center;
}
.section-header.centered .eyebrow {
  padding-left: 0;
}
.section-header.centered .eyebrow::before {
  display: none;
}
.section-subtitle {
  color: var(--text-muted);
  font-size: var(--fs-md);
  margin-top: var(--space-3);
  max-width: 640px;
}
.section-header.centered .section-subtitle {
  margin-inline: auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.9rem 1.75rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-base);
  line-height: 1;
  border-radius: var(--radius);
  border: 2px solid transparent;
  transition: all var(--tr);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}
.btn svg { flex: none; }

.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(27, 31, 92, 0.25);
}

.btn-accent {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn-accent:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(227, 30, 36, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.4);
}
.btn-outline-light:hover {
  background: var(--white);
  color: var(--primary);
  border-color: var(--white);
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
  padding: 0.5rem 0.75rem;
}
.btn-ghost:hover {
  color: var(--accent);
}

.btn-sm { padding: 0.55rem 1.1rem; font-size: var(--fs-sm); }
.btn-lg { padding: 1.1rem 2.2rem; font-size: var(--fs-md); }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  z-index: 100;
  transition: all var(--tr);
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-6);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}
.brand img {
  height: 48px;
  width: auto;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.main-nav a {
  padding: 0.5rem 0.9rem;
  color: var(--gray-700);
  font-weight: 500;
  font-size: var(--fs-sm);
  border-radius: var(--radius-sm);
  transition: all var(--tr-fast);
  position: relative;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--primary);
}
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}
/* Le CTA "Demander une prestation" dans le nav est réservé au menu mobile */
.nav-cta-mobile { display: none; }
@media (max-width: 1024px) {
  .nav-cta-mobile { display: inline-flex; margin-top: 1rem; }
}
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Lang switcher */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 3px;
  background: var(--white);
}
.lang-switch a {
  padding: 4px 12px;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--gray-500);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.lang-switch a.active {
  background: var(--primary);
  color: var(--white);
}

/* Menu mobile */
.menu-toggle {
  display: none;
  padding: 8px;
  color: var(--gray-800);
  border-radius: var(--radius-sm);
}
.menu-toggle:hover { color: var(--primary); }

@media (max-width: 1024px) {
  .menu-toggle { display: inline-flex; }
  .main-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    bottom: 0;
    left: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-6);
    transform: translateX(100%);
    transition: transform var(--tr);
    overflow-y: auto;
    border-top: 1px solid var(--border);
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav a {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    font-size: var(--fs-md);
  }
  .main-nav .btn { margin-top: var(--space-4); }
  .header-cta { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  color: var(--white);
  overflow: hidden;
  background: var(--yk-navy);
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
  z-index: 1;
}
.hero-slide.active { opacity: 1; z-index: 2; }
.hero-slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(27, 31, 92, 0.85) 0%, rgba(18, 21, 63, 0.75) 60%, rgba(227, 30, 36, 0.4) 100%);
  z-index: 2;
}
.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-content {
  position: relative;
  z-index: 3;
  max-width: 780px;
  padding-block: var(--space-20);
}
.hero .eyebrow { color: #FF6B6F; }
.hero .eyebrow::before { background: var(--accent); }
.hero h1 {
  color: var(--white);
  margin-bottom: var(--space-6);
  line-height: 1.05;
}
.hero p {
  font-size: var(--fs-lg);
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: var(--space-8);
  max-width: 640px;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.hero-dots {
  position: absolute;
  bottom: var(--space-8);
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  z-index: 4;
}
.hero-dots button {
  width: 40px;
  height: 3px;
  background: rgba(255, 255, 255, 0.35);
  border-radius: 2px;
  transition: all var(--tr);
}
.hero-dots button.active {
  background: var(--white);
  width: 60px;
}

/* Bandeau bas hero avec accents */
.hero-badges {
  position: absolute;
  bottom: var(--space-6);
  right: var(--space-8);
  z-index: 4;
  display: none;
  gap: var(--space-6);
  color: rgba(255,255,255,0.7);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---------- Grids ---------- */
.grid {
  display: grid;
  gap: var(--space-6);
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
@media (min-width: 900px) {
  .grid-3-strict { grid-template-columns: repeat(3, 1fr); }
  .grid-4-strict { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- Cards ---------- */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--tr);
  display: flex;
  flex-direction: column;
  position: relative;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.card-body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-title {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-3);
  color: var(--gray-900);
}
.card-text {
  color: var(--text-muted);
  margin-bottom: var(--space-4);
  flex: 1;
}
.card-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}
.card-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--gray-100);
}
.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--tr-slow);
}
.card:hover .card-image img {
  transform: scale(1.05);
}

/* Service card */
.service-card {
  padding: var(--space-8);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--tr);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--tr);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.service-card:hover::before {
  transform: scaleX(1);
}
.service-card .icon-badge {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary) 0%, var(--yk-navy-light) 100%);
  color: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  transition: all var(--tr);
}
.service-card:hover .icon-badge {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  transform: rotate(-5deg) scale(1.05);
}
.service-card h3 {
  margin-bottom: var(--space-3);
  font-size: var(--fs-xl);
}
.service-card p {
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}
.service-card .link-arrow {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: gap var(--tr);
}
.service-card:hover .link-arrow {
  gap: var(--space-3);
  color: var(--accent);
}

/* Project card */
.project-card { padding: 0; }
.project-card .card-image { aspect-ratio: 4 / 3; }
.project-card .card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0) 55%);
  opacity: 0;
  transition: opacity var(--tr);
}
.project-card:hover .card-image::after { opacity: 1; }
.project-card .project-meta {
  position: absolute;
  bottom: var(--space-4);
  left: var(--space-5);
  right: var(--space-5);
  color: var(--white);
  z-index: 2;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--tr);
}
.project-card:hover .project-meta {
  opacity: 1;
  transform: translateY(0);
}
.project-meta .badge {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.project-card .card-body {
  padding: var(--space-5) var(--space-6);
}
.project-card .card-title {
  font-size: var(--fs-md);
  line-height: 1.3;
}
.project-card .client {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

/* Sector card */
.sector-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 5;
  isolation: isolate;
}
.sector-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--tr-slow);
}
.sector-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(27, 31, 92, 0.95) 0%, rgba(27, 31, 92, 0.55) 50%, transparent 100%);
  z-index: 1;
}
.sector-card:hover img { transform: scale(1.08); }
.sector-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-6);
  color: var(--white);
  z-index: 2;
}
.sector-content .icon-badge {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
}
.sector-content h3 {
  color: var(--white);
  font-size: var(--fs-lg);
  margin-bottom: var(--space-2);
}
.sector-content p {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--fs-sm);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all var(--tr);
}
.sector-card:hover .sector-content p {
  max-height: 200px;
  opacity: 1;
  margin-top: var(--space-2);
}

/* Stat card */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-6);
}
.stat-card {
  text-align: center;
  padding: var(--space-6);
  border-left: 3px solid var(--accent);
}
.stat-card .value {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 4vw, var(--fs-5xl));
  font-weight: 700;
  color: var(--white);
  line-height: 1;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}
.stat-card .value .suffix {
  font-size: 0.6em;
  color: var(--accent);
}
.stat-card .label {
  margin-top: var(--space-3);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.75);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
}

/* Testimonial card */
.testimonial-card {
  background: var(--white);
  padding: var(--space-8);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  position: relative;
}
.testimonial-card::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: var(--space-6);
  font-family: Georgia, serif;
  font-size: 120px;
  line-height: 1;
  color: var(--accent);
  opacity: 0.2;
}
.testimonial-quote {
  font-size: var(--fs-md);
  line-height: 1.7;
  color: var(--gray-700);
  margin-bottom: var(--space-6);
  position: relative;
  z-index: 1;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.testimonial-author .avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}
.testimonial-author .name {
  font-weight: 600;
  color: var(--gray-900);
}
.testimonial-author .role {
  font-size: var(--fs-sm);
  color: var(--text-muted);
}
.rating {
  display: flex;
  gap: 2px;
  color: #FFC107;
  margin-bottom: var(--space-4);
}

/* Process step */
.process-timeline {
  position: relative;
  max-width: 900px;
  margin-inline: auto;
}
.process-step {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--space-6);
  padding: var(--space-6) 0;
  position: relative;
}
.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 50px;
  top: 100px;
  bottom: -30px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}
.process-step .step-badge {
  position: relative;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--yk-navy-light));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  font-family: var(--font-heading);
  font-weight: 700;
  z-index: 1;
  box-shadow: var(--shadow-md);
}
.process-step .step-badge .num {
  font-size: var(--fs-3xl);
  line-height: 1;
}
.process-step .step-body h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-2);
  color: var(--primary);
}
.process-step .step-body p {
  color: var(--text-muted);
}

@media (max-width: 640px) {
  .process-step { grid-template-columns: 70px 1fr; gap: var(--space-4); }
  .process-step .step-badge { width: 70px; height: 70px; }
  .process-step .step-badge .num { font-size: var(--fs-xl); }
  .process-step:not(:last-child)::after { left: 35px; top: 70px; }
}

/* ---------- Forms ---------- */
.form-group {
  margin-bottom: var(--space-5);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }
.form-label {
  display: block;
  font-weight: 600;
  font-size: var(--fs-sm);
  color: var(--gray-800);
  margin-bottom: var(--space-2);
}
.form-label .required { color: var(--accent); }
.form-label .optional {
  font-weight: 400;
  color: var(--text-muted);
  font-size: var(--fs-xs);
  margin-left: var(--space-2);
}
.form-control {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--fs-base);
  color: var(--gray-900);
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--tr-fast);
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27, 31, 92, 0.12);
}
.form-control.error {
  border-color: var(--accent);
}
textarea.form-control {
  min-height: 140px;
  resize: vertical;
}
select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2364748B' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 3rem;
}
.form-help {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  margin-top: var(--space-1);
}
.form-error {
  font-size: var(--fs-sm);
  color: var(--accent);
  margin-top: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}
.form-checkbox input {
  margin-top: 3px;
  accent-color: var(--primary);
  width: 18px;
  height: 18px;
}
.form-checkbox label {
  font-size: var(--fs-sm);
  color: var(--gray-700);
  line-height: 1.5;
  cursor: pointer;
}
.form-file {
  display: block;
  padding: var(--space-4);
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  text-align: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--tr-fast);
  background: var(--gray-50);
}
.form-file:hover {
  border-color: var(--primary);
  background: var(--white);
}
.form-file input[type="file"] {
  display: none;
}
.form-file .file-name {
  font-weight: 600;
  color: var(--primary);
  margin-top: var(--space-2);
}

/* Alert */
.alert {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius);
  margin-bottom: var(--space-5);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  border-left: 4px solid;
}
.alert-success {
  background: #ECFDF5;
  color: #065F46;
  border-color: #10B981;
}
.alert-error {
  background: #FEF2F2;
  color: #991B1B;
  border-color: var(--accent);
}
.alert-warning {
  background: #FFFBEB;
  color: #92400E;
  border-color: #F59E0B;
}
.alert-info {
  background: #EFF6FF;
  color: #1E3A8A;
  border-color: #3B82F6;
}

/* Honeypot */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- About section ---------- */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
@media (max-width: 900px) {
  .about-split { grid-template-columns: 1fr; gap: var(--space-10); }
}
.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  box-shadow: var(--shadow-xl);
}
.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-image::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  right: 30%;
  bottom: 30%;
  border: 3px solid var(--accent);
  border-radius: var(--radius-lg);
  z-index: -1;
}
.about-image-wrap { position: relative; }
.about-features {
  list-style: none;
  padding: 0;
  margin: var(--space-6) 0 0;
  display: grid;
  gap: var(--space-3);
}
.about-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: var(--gray-700);
}
.about-features li svg {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ---------- CTA banner ---------- */
.cta-banner {
  position: relative;
  padding: var(--space-16) var(--space-8);
  background: linear-gradient(135deg, var(--yk-navy) 0%, var(--yk-navy-dark) 100%);
  color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-align: center;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(227, 30, 36, 0.4), transparent 70%);
  border-radius: 50%;
}
.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(227, 30, 36, 0.2), transparent 70%);
  border-radius: 50%;
}
.cta-banner > * { position: relative; z-index: 1; }
.cta-banner h2 {
  color: var(--white);
  margin-bottom: var(--space-4);
}
.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--fs-md);
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-inline: auto;
}
.cta-banner .btn-cta-group {
  display: inline-flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  padding: var(--space-6) 0;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--text-muted);
}
.breadcrumb li:not(:last-child)::after {
  content: '/';
  margin-left: var(--space-2);
  color: var(--gray-300);
}
.breadcrumb a { color: var(--primary); }
.breadcrumb li:last-child { color: var(--gray-700); font-weight: 500; }

/* ---------- Page hero ---------- */
.page-hero {
  padding: var(--space-16) 0 var(--space-12);
  background: linear-gradient(135deg, var(--yk-navy-dark) 0%, var(--yk-navy) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: radial-gradient(ellipse at top right, rgba(227, 30, 36, 0.25), transparent 60%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero .eyebrow { color: #FF6B6F; padding-left: 0; }
.page-hero .eyebrow::before { display: none; }
.page-hero h1 {
  color: var(--white);
  max-width: 800px;
  margin-bottom: var(--space-4);
}
.page-hero p {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--fs-md);
  max-width: 700px;
}

/* ---------- Contact info blocks ---------- */
.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}
.contact-info-card {
  padding: var(--space-6);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--tr);
}
.contact-info-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}
.contact-info-card .icon-badge {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: rgba(227, 30, 36, 0.08);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}
.contact-info-card h4 {
  font-size: var(--fs-md);
  margin-bottom: var(--space-2);
  color: var(--gray-900);
}
.contact-info-card p, .contact-info-card a {
  color: var(--text-muted);
  font-size: var(--fs-sm);
  line-height: 1.6;
  white-space: pre-line;
}
.contact-info-card a { color: var(--gray-700); font-weight: 500; }

/* ---------- Filter chips (projects page) ---------- */
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  justify-content: center;
}
.filter-chip {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--border);
  background: var(--white);
  color: var(--gray-700);
  font-weight: 500;
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: all var(--tr-fast);
}
.filter-chip:hover { border-color: var(--primary); color: var(--primary); }
.filter-chip.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--yk-navy-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: var(--space-16) 0 var(--space-6);
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand img {
  height: 56px;
  filter: brightness(1.1);
  margin-bottom: var(--space-4);
  background: var(--white);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
}
.footer-brand p {
  font-size: var(--fs-sm);
  line-height: 1.6;
  max-width: 320px;
}
.footer-col h4 {
  color: var(--white);
  font-size: var(--fs-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-5);
}
.footer-col ul {
  display: grid;
  gap: var(--space-2);
}
.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--fs-sm);
  transition: color var(--tr-fast);
}
.footer-col a:hover { color: var(--white); }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-3);
  line-height: 1.5;
}
.footer-contact svg {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.footer-contact a {
  color: rgba(255, 255, 255, 0.85);
}
.footer-socials {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.footer-socials a {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  transition: all var(--tr-fast);
}
.footer-socials a:hover {
  background: var(--accent);
  transform: translateY(-3px);
}
.footer-bottom {
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.6);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.75);
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.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; }

/* ---------- Utils ---------- */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.text-primary { color: var(--primary); }
.text-white { color: var(--white); }

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.hidden { display: none !important; }

/* Long content pages */
.prose {
  max-width: 720px;
  margin-inline: auto;
}
.prose h2 { margin-top: var(--space-8); margin-bottom: var(--space-4); }
.prose h3 { margin-top: var(--space-6); margin-bottom: var(--space-3); }
.prose p { margin-bottom: var(--space-4); }
.prose ul, .prose ol { margin: var(--space-4) 0 var(--space-4) var(--space-6); }
.prose li { margin-bottom: var(--space-2); }

/* Service detail features */
.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-6);
}
.features-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--gray-50);
  border-radius: var(--radius);
  color: var(--gray-800);
  font-weight: 500;
  font-size: var(--fs-sm);
}
.features-list li svg {
  color: var(--accent);
  flex-shrink: 0;
}

/* Cookies (aucun bandeau demandé, style prêt en cas de besoin) */

/* ---------- Rich content (from WYSIWYG) ---------- */
.rich-content p { margin-bottom: var(--space-4); line-height: 1.7; }
.rich-content p:last-child { margin-bottom: 0; }
.rich-content h2 { font-size: var(--fs-2xl); margin: var(--space-8) 0 var(--space-4); }
.rich-content h3 { font-size: var(--fs-xl); margin: var(--space-6) 0 var(--space-3); }
.rich-content h4 { font-size: var(--fs-lg); margin: var(--space-4) 0 var(--space-2); }
.rich-content ul, .rich-content ol { margin: var(--space-4) 0 var(--space-4) var(--space-6); padding-left: var(--space-4); }
.rich-content ul { list-style: disc; }
.rich-content ol { list-style: decimal; }
.rich-content li { margin-bottom: var(--space-2); line-height: 1.6; }
.rich-content strong, .rich-content b { font-weight: 700; color: var(--gray-900); }
.rich-content em, .rich-content i { font-style: italic; }
.rich-content u { text-decoration: underline; }
.rich-content a { color: var(--primary); text-decoration: underline; }
.rich-content a:hover { color: var(--accent); }
.rich-content blockquote {
  border-left: 3px solid var(--accent);
  padding: var(--space-2) var(--space-4);
  margin: var(--space-4) 0;
  color: var(--text-muted);
  font-style: italic;
  background: var(--gray-50);
}
.rich-content .ql-align-center, .rich-content [style*="text-align:center"] { text-align: center; }
.rich-content .ql-align-right, .rich-content [style*="text-align:right"] { text-align: right; }
.rich-content .ql-align-justify, .rich-content [style*="text-align:justify"] { text-align: justify; }