/* style.css — ID CONCEPT HABITAT — Template A (atelier technique) */
@import url('tokens.css');
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800&family=Source+Sans+3:wght@300;400;600&display=swap');

/* ─────────────────────────────────────────
   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);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* ─────────────────────────────────────────
   VISUAL PLACEHOLDER
───────────────────────────────────────── */
.visual-placeholder {
  display: block;
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 16 / 9;
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--color-primary) 22%, var(--color-bg)) 0%,
      color-mix(in srgb, var(--color-primary) 10%, var(--color-bg)) 55%,
      color-mix(in srgb, var(--color-secondary) 18%, var(--color-bg)) 100%
    );
}
.visual-placeholder[data-aspect="4:3"]  { aspect-ratio: 4 / 3; }
.visual-placeholder[data-aspect="1:1"]  { aspect-ratio: 1 / 1; }
.visual-placeholder[data-aspect="3:4"]  { aspect-ratio: 3 / 4; }
.visual-placeholder[data-aspect="21:9"] { aspect-ratio: 21 / 9; }

.visual-placeholder[data-tone="secondary"] {
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--color-secondary) 22%, var(--color-bg)) 0%,
      color-mix(in srgb, var(--color-secondary) 10%, var(--color-bg)) 55%,
      color-mix(in srgb, var(--color-primary) 16%, var(--color-bg)) 100%
    );
}
.visual-placeholder[data-tone="accent"] {
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--color-accent, var(--color-primary)) 22%, var(--color-bg)) 0%,
      color-mix(in srgb, var(--color-primary) 12%, var(--color-bg)) 60%,
      color-mix(in srgb, var(--color-secondary) 16%, var(--color-bg)) 100%
    );
}
.visual-placeholder[data-tone="muted"] {
  background: color-mix(in srgb, var(--color-text) 8%, var(--color-bg));
}

/* ─────────────────────────────────────────
   LAYOUT
───────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--spacing-4);
}

section { padding-block: var(--spacing-16); }

/* ─────────────────────────────────────────
   TYPOGRAPHY
───────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: var(--font-weight-bold);
  line-height: 1.15;
  color: var(--color-primary);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p { margin-block-end: var(--spacing-4); }
p:last-child { margin-block-end: 0; }

.section-label {
  display: inline-block;
  font-family: var(--font-title);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-block-end: var(--spacing-3);
}

.section-title {
  font-size: var(--font-size-3xl);
  color: var(--color-primary);
  margin-block-end: var(--spacing-4);
}

.section-intro {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 60ch;
}

/* ─────────────────────────────────────────
   BUTTONS
───────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: var(--radius-md);
  font-family: var(--font-title);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-secondary);
  color: var(--color-primary);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--color-accent);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  border: 2px solid currentColor;
  color: var(--color-secondary);
}
.btn-outline:hover, .btn-outline:focus-visible {
  background: var(--color-secondary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 2px; }

/* ─────────────────────────────────────────
   HEADER / NAV
───────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: var(--spacing-4);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-brand-name {
  font-family: var(--font-title);
  font-weight: var(--font-weight-extrabold);
  font-size: var(--font-size-base);
  color: #fff;
  line-height: 1.1;
}
.nav-brand-sub {
  font-size: var(--font-size-xs);
  color: var(--color-secondary);
  font-weight: var(--font-weight-medium);
}

.nav-logo {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--spacing-6);
}

.nav-links a {
  font-family: var(--font-title);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  transition: color var(--transition-fast);
  padding-block: var(--spacing-2);
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--color-secondary); }
.nav-links a[aria-current="page"] {
  color: var(--color-secondary);
  font-weight: var(--font-weight-semibold);
}

.nav-cta { margin-left: var(--spacing-4); }

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-2);
  background: none;
  border: none;
  cursor: pointer;
  aria-label: "Menu";
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  background: var(--color-primary-dark);
  padding: var(--spacing-4);
  flex-direction: column;
  gap: var(--spacing-2);
}
.nav-mobile.is-open { display: flex; }
.nav-mobile a {
  color: rgba(255,255,255,0.9);
  font-family: var(--font-title);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-3) var(--spacing-4);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.nav-mobile a:hover, .nav-mobile a[aria-current="page"] {
  background: rgba(255,255,255,0.08);
  color: var(--color-secondary);
}
.nav-mobile .btn { width: 100%; justify-content: center; margin-top: var(--spacing-4); }

/* ─────────────────────────────────────────
   HERO
───────────────────────────────────────── */
.hero {
  background: var(--color-primary);
  color: #fff;
  padding-block: var(--spacing-16) var(--spacing-24);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 70% 50%, color-mix(in srgb, var(--color-secondary) 12%, transparent) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, color-mix(in srgb, var(--color-accent) 8%, transparent) 0%, transparent 50%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  gap: var(--spacing-10);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  font-family: var(--font-title);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-block-end: var(--spacing-4);
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-secondary);
}

.hero-title {
  font-family: var(--font-title);
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  color: #fff;
  line-height: 1.1;
  margin-block-end: var(--spacing-6);
}
.hero-title em {
  font-style: normal;
  color: var(--color-secondary);
}

.hero-text {
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,0.8);
  max-width: 52ch;
  margin-block-end: var(--spacing-8);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
}

.hero-visual .visual-placeholder {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

/* ─────────────────────────────────────────
   BADGES / STATS
───────────────────────────────────────── */
.stats-bar {
  background: var(--color-secondary);
  padding-block: var(--spacing-6);
}

.stats-inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-8);
  justify-content: center;
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-family: var(--font-title);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  line-height: 1;
}

.stat-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  opacity: 0.8;
}

/* ─────────────────────────────────────────
   SERVICES (cards)
───────────────────────────────────────── */
.services-grid {
  display: grid;
  gap: var(--spacing-6);
  grid-template-columns: 1fr;
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.service-card-body {
  padding: var(--spacing-6);
}

.service-icon {
  width: 48px;
  height: 48px;
  background: color-mix(in srgb, var(--color-secondary) 15%, var(--color-bg));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-block-end: var(--spacing-4);
}
.service-icon svg { width: 28px; height: 28px; color: var(--color-secondary); }

.service-card h3 {
  font-size: var(--font-size-lg);
  margin-block-end: var(--spacing-2);
}

.service-card p {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

/* ─────────────────────────────────────────
   SECTION ALTERNÉE (à propos mini)
───────────────────────────────────────── */
.split-section {
  background: var(--color-surface);
}

.split-inner {
  display: grid;
  gap: var(--spacing-10);
  align-items: center;
}

.split-content h2 { margin-block-end: var(--spacing-4); }
.split-content p  { color: var(--color-text-light); }

.split-content .btn { margin-top: var(--spacing-6); }

/* ─────────────────────────────────────────
   RÉALISATIONS (galerie)
───────────────────────────────────────── */
.gallery-grid {
  display: grid;
  gap: var(--spacing-4);
  grid-template-columns: 1fr;
}

.gallery-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.gallery-item .visual-placeholder { border-radius: 0; }

.gallery-caption {
  padding: var(--spacing-3) var(--spacing-4);
  background: var(--color-surface);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  font-weight: var(--font-weight-medium);
}

/* ─────────────────────────────────────────
   CTA BAND
───────────────────────────────────────── */
.cta-band {
  background: var(--color-primary);
  color: #fff;
  text-align: center;
  padding-block: var(--spacing-16);
}

.cta-band h2 { color: #fff; margin-block-end: var(--spacing-4); }
.cta-band p  { color: rgba(255,255,255,0.75); margin-block-end: var(--spacing-8); }

/* ─────────────────────────────────────────
   CONTACT FORM
───────────────────────────────────────── */
.contact-grid {
  display: grid;
  gap: var(--spacing-10);
}

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-8);
}

.form-group {
  margin-block-end: var(--spacing-4);
}

.form-group label {
  display: block;
  font-family: var(--font-title);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  margin-block-end: var(--spacing-2);
  color: var(--color-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  display: block;
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-secondary) 20%, transparent);
}

.form-group textarea { resize: vertical; min-height: 130px; }

.contact-info h3 {
  margin-block-end: var(--spacing-4);
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  margin-block-end: var(--spacing-8);
}

.info-item {
  display: flex;
  gap: var(--spacing-3);
  align-items: flex-start;
}

.info-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-secondary) 15%, var(--color-bg));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.info-icon svg { width: 18px; height: 18px; color: var(--color-secondary); }

.info-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-light);
}
.info-value {
  font-size: var(--font-size-base);
  color: var(--color-text);
}

.map-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.map-wrapper iframe {
  display: block;
  width: 100%;
  height: 280px;
  border: none;
}

/* ─────────────────────────────────────────
   SERVICES PAGE — full sections
───────────────────────────────────────── */
.service-section {
  padding-block: var(--spacing-12);
  border-block-end: 1px solid var(--color-border);
}
.service-section:last-child { border-block-end: none; }

.service-section-inner {
  display: grid;
  gap: var(--spacing-8);
  align-items: center;
}

.service-section-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-block-start: var(--spacing-4);
}

.tag {
  display: inline-block;
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--radius-full);
  background: color-mix(in srgb, var(--color-secondary) 15%, var(--color-bg));
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}

/* ─────────────────────────────────────────
   A PROPOS PAGE
───────────────────────────────────────── */
.about-header {
  background: var(--color-primary);
  color: #fff;
  padding-block: var(--spacing-16);
}
.about-header h1 { color: #fff; }
.about-header p  { color: rgba(255,255,255,0.75); max-width: 60ch; }

.values-grid {
  display: grid;
  gap: var(--spacing-6);
}

.value-card {
  padding: var(--spacing-6);
  border-left: 4px solid var(--color-secondary);
  background: var(--color-surface);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.value-card h3 { margin-block-end: var(--spacing-2); font-size: var(--font-size-base); }
.value-card p  { color: var(--color-text-light); font-size: var(--font-size-sm); margin: 0; }

/* ─────────────────────────────────────────
   MENTIONS LÉGALES INLINE
───────────────────────────────────────── */
.legal-section {
  background: var(--color-surface);
  padding-block: var(--spacing-12);
  border-top: 1px solid var(--color-border);
}
.legal-section h3 { font-size: var(--font-size-base); margin-block-end: var(--spacing-3); }
.legal-section p, .legal-section address {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  font-style: normal;
}

/* ─────────────────────────────────────────
   FOOTER
───────────────────────────────────────── */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.75);
  padding-block: var(--spacing-12) var(--spacing-6);
}

.footer-inner {
  display: grid;
  gap: var(--spacing-8);
}

.footer-brand h3 {
  font-family: var(--font-title);
  font-size: var(--font-size-xl);
  color: #fff;
  margin-block-end: var(--spacing-2);
}
.footer-brand p {
  font-size: var(--font-size-sm);
  margin: 0;
}

.footer-nav h4 {
  font-family: var(--font-title);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-secondary);
  margin-block-end: var(--spacing-4);
}

.footer-nav ul { display: flex; flex-direction: column; gap: var(--spacing-2); }
.footer-nav a {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.7);
  transition: color var(--transition-fast);
}
.footer-nav a:hover { color: var(--color-secondary); }

.footer-bottom {
  margin-top: var(--spacing-8);
  padding-top: var(--spacing-6);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.4);
}

/* ─────────────────────────────────────────
   COOKIE BANNER
───────────────────────────────────────── */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.9);
  padding: var(--spacing-4);
  z-index: 999;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 -4px 12px rgba(0,0,0,0.2);
}
.cookie-banner p { font-size: var(--font-size-sm); margin: 0; flex: 1; min-width: 200px; }
.cookie-banner .btn { padding: var(--spacing-2) var(--spacing-6); font-size: var(--font-size-xs); }
.cookie-banner[hidden] { display: none; }

/* ─────────────────────────────────────────
   PAGE HEADER (inner pages)
───────────────────────────────────────── */
.page-header {
  background: var(--color-primary);
  padding-block: var(--spacing-12);
  color: #fff;
}
.page-header h1 { color: #fff; margin-block-end: var(--spacing-3); }
.page-header p  { color: rgba(255,255,255,0.75); }

.breadcrumb {
  display: flex;
  gap: var(--spacing-2);
  align-items: center;
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.5);
  margin-block-end: var(--spacing-4);
}
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: var(--color-secondary); }
.breadcrumb span { color: rgba(255,255,255,0.3); }

/* ─────────────────────────────────────────
   RESPONSIVE — TABLETTE (≥768px)
───────────────────────────────────────── */
@media (min-width: 768px) {
  h1 { font-size: var(--font-size-4xl); }
  .section-title { font-size: var(--font-size-4xl); }

  .hero-title { font-size: var(--font-size-5xl); }

  .hero-inner {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

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

  .split-inner { grid-template-columns: 1fr 1fr; }

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

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

  .footer-inner { grid-template-columns: 2fr 1fr 1fr; }

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

  .service-section-inner { grid-template-columns: 1fr 1fr; }
}

/* ─────────────────────────────────────────
   RESPONSIVE — DESKTOP (≥1024px)
───────────────────────────────────────── */
@media (min-width: 1024px) {
  .nav-toggle { display: none; }
  .nav-links { display: flex; }

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

  .gallery-grid { grid-template-columns: repeat(3, 1fr); }

  .values-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 768px) {
  .container { padding-inline: var(--spacing-8); }
}

/* ─────────────────────────────────────────
   ACCESSIBILITY
───────────────────────────────────────── */
:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ─────────────────────────────────────────
   ANIMATION PASS — Template A (atelier technique)
   CSS-first · GPU-friendly · scroll-driven (Chromium 115+)
   Fallback : contenu reste visible si animation-timeline non supporté
───────────────────────────────────────── */
@media (prefers-reduced-motion: no-preference) {

  /* — Hero entrée (chargement page) — */
  @keyframes idch-slide-x {
    from { opacity: 0; transform: translate3d(-14px, 0, 0); }
    to   { opacity: 1; transform: translate3d(0, 0, 0); }
  }
  @keyframes idch-rise {
    from { opacity: 0; transform: translate3d(0, 18px, 0); }
    to   { opacity: 1; transform: translate3d(0, 0, 0); }
  }
  .hero-eyebrow { animation: idch-slide-x .7s cubic-bezier(.2,.7,.2,1) both; }
  .hero-eyebrow::before {
    transform-origin: left center;
    animation: idch-bar .8s .15s cubic-bezier(.2,.7,.2,1) both;
  }
  @keyframes idch-bar { from { transform: scaleX(0); } to { transform: scaleX(1); } }

  .hero-title   { animation: idch-rise .85s .10s cubic-bezier(.2,.7,.2,1) both; }
  .hero-text    { animation: idch-rise .85s .25s cubic-bezier(.2,.7,.2,1) both; }
  .hero-actions { animation: idch-rise .85s .40s cubic-bezier(.2,.7,.2,1) both; }
  .hero-visual  { animation: idch-rise .95s .30s cubic-bezier(.2,.7,.2,1) both; }

  /* halo hero — dérive lente pour donner un rythme d'atelier */
  @keyframes idch-hero-drift {
    0%   { transform: translate3d(0, 0, 0); }
    100% { transform: translate3d(18px, -14px, 0); }
  }
  .hero::before { animation: idch-hero-drift 16s ease-in-out infinite alternate; }

  /* — Nav : underline animée — */
  .nav-links a { position: relative; }
  .nav-links a::after {
    content: '';
    position: absolute;
    left: var(--spacing-1, 4px); right: var(--spacing-1, 4px);
    bottom: 4px;
    height: 2px;
    background: var(--color-secondary);
    transform: scaleX(0);
    transform-origin: right center;
    transition: transform .35s cubic-bezier(.2,.7,.2,1);
  }
  .nav-links a:hover::after,
  .nav-links a:focus-visible::after,
  .nav-links a[aria-current="page"]::after {
    transform: scaleX(1);
    transform-origin: left center;
  }

  /* — Bouton primaire : reflet type sheen — */
  .btn-primary { position: relative; overflow: hidden; isolation: isolate; }
  .btn-primary::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(115deg,
      transparent 30%,
      rgba(255,255,255,.35) 50%,
      transparent 70%);
    transform: translateX(-120%);
    transition: transform .75s ease;
    pointer-events: none;
    z-index: -1;
  }
  .btn-primary:hover::before,
  .btn-primary:focus-visible::before { transform: translateX(120%); }

  /* — Cartes services : hover raffiné (accent border) — */
  .service-card {
    transition:
      transform .45s cubic-bezier(.2,.7,.2,1),
      box-shadow .45s ease,
      border-color .35s ease;
  }
  .service-card:hover { border-color: var(--color-secondary); }
  .service-card:hover .service-icon { transform: rotate(-4deg) scale(1.06); }
  .service-icon { transition: transform .4s cubic-bezier(.2,.7,.2,1); }

  /* — Galerie : zoom mesuré + placeholder qui glisse — */
  .gallery-item .visual-placeholder {
    background-size: 180% 180%;
    background-position: 0% 0%;
    transition:
      transform .55s cubic-bezier(.2,.7,.2,1),
      background-position .8s ease,
      filter .5s ease;
  }
  .gallery-item:hover .visual-placeholder,
  .gallery-item:focus-within .visual-placeholder {
    transform: scale(1.035);
    background-position: 100% 100%;
    filter: brightness(1.05) saturate(1.08);
  }
  .gallery-caption { transition: color .3s ease, background .3s ease; }
  .gallery-item:hover .gallery-caption { color: var(--color-primary); }

  /* — Value cards (a-propos) — */
  .value-card {
    transition: transform .35s cubic-bezier(.2,.7,.2,1), border-color .3s ease, box-shadow .35s ease;
  }
  .value-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }

  /* — Stats bar : subtle lift au hover — */
  .stat-item { transition: transform .4s cubic-bezier(.2,.7,.2,1); }
  .stats-inner:hover .stat-item { transform: translateY(-1px); }

  /* — Form inputs : focus halo animé — */
  .form-group input,
  .form-group textarea,
  .form-group select {
    transition:
      border-color .25s ease,
      box-shadow .3s ease,
      background .25s ease;
  }

  /* — Scroll reveal (Chromium 115+, fallback silencieux) — */
  @supports (animation-timeline: view()) {
    @keyframes idch-reveal {
      from { opacity: 0; transform: translate3d(0, 22px, 0); }
      to   { opacity: 1; transform: translate3d(0, 0, 0); }
    }
    .service-card,
    .gallery-item,
    .value-card,
    .service-section-inner > *,
    .split-content,
    .split-visual,
    .cta-band > .container,
    .legal-section .container > * {
      animation: idch-reveal linear both;
      animation-timeline: view();
      animation-range: entry 0% cover 22%;
    }

    /* Stat count-in au scroll */
    @keyframes idch-stat-pop {
      from { opacity: 0; transform: translate3d(0, 10px, 0) scale(.96); }
      to   { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
    }
    .stat-item {
      animation: idch-stat-pop linear both;
      animation-timeline: view();
      animation-range: entry 0% cover 40%;
    }
  }
}