/* ==========================================================================
   PulseWebStudio — Feuille de style principale
   Thème sombre principal · Mobile-first · Grille d'espacement 8px
   Aucune dépendance externe — CSS natif moderne
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Variables de design (design tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Couleurs — thème sombre (contrastes conformes WCAG 2.1 AA) */
  --color-bg: #0a0a10;
  --color-bg-elevated: #11111a;
  --color-surface: #15151f;
  --color-surface-2: #1b1b28;
  --color-border: #262635;
  --color-border-strong: #3a3a52;
  --color-text: #eceaf6;
  --color-text-muted: #a5a3bd;
  --color-accent: #8b8cf8;
  --color-accent-2: #2dd4bf;
  --color-accent-contrast: #0a0a10;
  --gradient-accent: linear-gradient(120deg, var(--color-accent), var(--color-accent-2));

  /* Espacement — grille de base 8px */
  --space-1: 0.5rem;   /*  8px */
  --space-2: 1rem;     /* 16px */
  --space-3: 1.5rem;   /* 24px */
  --space-4: 2rem;     /* 32px */
  --space-5: 2.5rem;   /* 40px */
  --space-6: 3rem;     /* 48px */
  --space-8: 4rem;     /* 64px */
  --space-10: 5rem;    /* 80px */
  --space-12: 6rem;    /* 96px */

  /* Typographie — polices système (zéro requête réseau) */
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Rayons et ombres */
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 8px 40px rgba(139, 140, 248, 0.25);

  /* Divers */
  --header-height: 72px;
  --transition: 200ms ease;

  color-scheme: dark;
}

/* --------------------------------------------------------------------------
   2. Reset minimal et base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
}

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

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

ul[role="list"],
ol[role="list"] {
  list-style: none;
  padding: 0;
}

/* Focus visible — accessibilité clavier */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Sélection de texte */
::selection {
  background-color: var(--color-accent);
  color: var(--color-accent-contrast);
}

/* --------------------------------------------------------------------------
   3. Typographie
   -------------------------------------------------------------------------- */
h1,
h2,
h3 {
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.25rem, 4.5vw + 1rem, 3.75rem);
}

h2 {
  font-size: clamp(1.625rem, 2.5vw + 0.75rem, 2.5rem);
}

h3 {
  font-size: 1.25rem;
}

p {
  text-wrap: pretty;
}

.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* --------------------------------------------------------------------------
   4. Utilitaires de mise en page
   -------------------------------------------------------------------------- */
.container {
  width: min(100% - 2.5rem, 72rem);
  margin-inline: auto;
}

.section {
  padding-block: var(--space-10);
}

@media (min-width: 768px) {
  .section {
    padding-block: var(--space-12);
  }
}

/* En-tête de section : kicker + titre + introduction */
.section-header {
  max-width: 42rem;
  margin-bottom: var(--space-6);
}

.section-header--center {
  margin-inline: auto;
  text-align: center;
}

.kicker {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.lede {
  margin-top: var(--space-2);
  font-size: 1.125rem;
  color: var(--color-text-muted);
}

/* Lien d'évitement (accessibilité) */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-2);
  z-index: 100;
  padding: 12px 20px;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: top var(--transition);
}

.skip-link:focus {
  top: var(--space-2);
}

/* --------------------------------------------------------------------------
   5. En-tête et navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  background: rgba(10, 10, 16, 0.82);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.header-inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

/* Logo */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.brand-mark {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.brand span {
  color: var(--color-accent);
}

/* Bouton burger — cible tactile 44x44 minimum */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Navigation — panneau déroulant sur mobile */
.site-nav {
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  display: none;
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

.site-nav.is-open {
  display: block;
  animation: nav-slide 240ms ease;
}

@keyframes nav-slide {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: var(--space-1);
  display: flex;
  flex-direction: column;
}

.nav-link {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-weight: 500;
  transition: color var(--transition), background-color var(--transition);
}

.nav-link:hover {
  color: var(--color-text);
  background-color: var(--color-surface-2);
}

/* Page courante */
.nav-link[aria-current="page"] {
  color: var(--color-text);
  background-color: var(--color-surface-2);
}

/* Navigation desktop */
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    display: block;
    background: transparent;
    border: 0;
    box-shadow: none;
  }

  .nav-list {
    flex-direction: row;
    gap: var(--space-1);
    padding: 0;
  }

  .nav-link {
    min-height: 44px;
    padding: 10px 16px;
  }

  .nav-link[aria-current="page"] {
    background-color: var(--color-surface);
    box-shadow: inset 0 -2px 0 var(--color-accent);
  }
}

/* --------------------------------------------------------------------------
   6. Boutons — cibles tactiles 48px minimum
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 28px;
  border: 0;
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition), background-color var(--transition);
}

.btn-primary {
  background: var(--gradient-accent);
  color: var(--color-accent-contrast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--color-border-strong);
  color: var(--color-text);
}

.btn-ghost:hover {
  border-color: var(--color-accent);
  background-color: var(--color-surface);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   7. Héros (page d'accueil et pages internes)
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding-block: var(--space-10) var(--space-8);
  overflow: hidden;
}

/* Halos lumineux décoratifs.
   Le halo bas est centré à 10.5rem du bord inférieur alors que son fondu
   s'achève à 9.6rem (60 % de 16rem) : il s'éteint donc naturellement
   avant la fin du héros, sans coupure visible avec la section suivante. */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(36rem 24rem at 80% 0%, rgba(139, 140, 248, 0.14), transparent 65%),
    radial-gradient(30rem 16rem at 12% calc(100% - 10.5rem), rgba(45, 212, 191, 0.08), transparent 60%);
  pointer-events: none;
}

.hero .container {
  position: relative;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  margin-bottom: var(--space-3);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}

.hero-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent-2);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.5);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(45, 212, 191, 0);
  }
}

.hero h1 {
  max-width: 22ch;
}

.hero-lede {
  max-width: 38rem;
  margin-top: var(--space-3);
  font-size: clamp(1.0625rem, 1vw + 0.875rem, 1.25rem);
  color: var(--color-text-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

/* Ligne de pouls animée (décorative) */
.pulse-line {
  width: 100%;
  max-width: 640px;
  margin-top: var(--space-8);
  color: var(--color-accent);
}

.pulse-line .pulse-track {
  stroke: var(--color-border-strong);
  opacity: 0.6;
}

.pulse-line .pulse-beam {
  stroke: url(#pulse-gradient);
  stroke-dasharray: 180 820;
  stroke-dashoffset: 1000;
  animation: pulse-travel 3.5s linear infinite;
}

@keyframes pulse-travel {
  to {
    stroke-dashoffset: 0;
  }
}

/* Points de confiance sous le héros */
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  margin-top: var(--space-6);
  padding: 0;
  list-style: none;
}

.hero-trust li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.hero-trust svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent-2);
  flex-shrink: 0;
}

/* Héros compact pour les pages internes */
.hero--page {
  padding-block: var(--space-8) var(--space-4);
}

/* --------------------------------------------------------------------------
   8. Cartes génériques (services, atouts, valeurs)
   -------------------------------------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }
}

@media (min-width: 1024px) {
  .card-grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }

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

.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-strong);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  color: var(--color-accent);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   9. Portfolio
   -------------------------------------------------------------------------- */
.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

@media (min-width: 640px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .project-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition),
    box-shadow var(--transition);
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-card);
}

.project-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
}

/* Ratio fixe : aucun décalage de mise en page au chargement.
   Fond animé en attendant l'image (état squelette). */
.project-media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: linear-gradient(100deg, var(--color-surface-2) 40%, #232334 50%, var(--color-surface-2) 60%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.6s ease-in-out infinite;
}

@keyframes skeleton-shimmer {
  from {
    background-position: 120% 0;
  }
  to {
    background-position: -80% 0;
  }
}

/* Image chargée : on arrête le scintillement du squelette */
.project-media:has(img.is-loaded) {
  animation: none;
}

.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 400ms ease, transform 400ms ease;
}

.project-media img.is-loaded {
  opacity: 1;
}

/* Sans JavaScript, les images restent visibles */
html:not(.js) .project-media img {
  opacity: 1;
}

.project-card:hover .project-media img {
  transform: scale(1.03);
}

.project-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  flex: 1;
}

.project-body p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  flex: 1;
}

.project-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--space-1);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-accent);
}

.project-cta svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
}

.project-card:hover .project-cta svg {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   10. Équipe
   -------------------------------------------------------------------------- */
.team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  max-width: 56rem;
  margin-inline: auto;
}

@media (min-width: 640px) {
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.team-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-5) var(--space-4);
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition);
}

.team-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-strong);
}

.team-avatar {
  width: 112px;
  height: 112px;
  border-radius: 50%;
  border: 2px solid var(--color-border-strong);
}

.team-role {
  display: inline-block;
  padding: 4px 14px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}

.team-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   11. Processus de travail
   -------------------------------------------------------------------------- */
.process-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  list-style: none;
  padding: 0;
  counter-reset: step;
}

@media (min-width: 640px) {
  .process-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .process-list {
    grid-template-columns: repeat(4, 1fr);
  }
}

.process-step {
  counter-increment: step;
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.process-step::before {
  content: "0" counter(step);
  display: block;
  margin-bottom: var(--space-2);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.process-step h3 {
  margin-bottom: var(--space-1);
  font-size: 1.125rem;
}

.process-step p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   12. Page contact
   -------------------------------------------------------------------------- */
/* Disposition : formulaire à gauche, coordonnées à droite (desktop) */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  align-items: start;
}

.contact-aside {
  display: grid;
  gap: var(--space-2);
  align-content: start;
}

@media (min-width: 640px) {
  .contact-aside {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .contact-layout {
    grid-template-columns: 1.6fr 1fr;
  }

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

.contact-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition);
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-strong);
}

.contact-card .card-icon {
  margin-bottom: var(--space-1);
}

.contact-card h2 {
  font-size: 1.125rem;
}

.contact-value {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  word-break: break-word;
}

a.contact-value {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-accent);
  transition: color var(--transition);
}

a.contact-value:hover {
  color: var(--color-accent-2);
}

.contact-note {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* Carte contenant le formulaire */
.form-card {
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

@media (min-width: 768px) {
  .form-card {
    padding: var(--space-5);
  }
}

.form-intro {
  margin-top: var(--space-1);
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* Formulaire de contact */
.contact-form {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.form-row {
  display: grid;
  gap: var(--space-3);
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-field {
  display: grid;
  gap: var(--space-1);
}

.form-field label {
  font-weight: 600;
  font-size: 0.9375rem;
}

.form-field label span {
  font-weight: 400;
  color: var(--color-text-muted);
}

/* Champs de saisie — cibles tactiles 48px minimum */
.form-input {
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  font: inherit;
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}

.form-input:hover {
  border-color: var(--color-accent);
}

.form-input::placeholder {
  color: rgba(165, 163, 189, 0.55);
}

textarea.form-input {
  min-height: 160px;
  resize: vertical;
}

/* Champ invalide après interaction de l'utilisateur */
.form-input:user-invalid {
  border-color: #f87171;
}

/* Piège à robots — masqué visuellement, jamais via display:none
   (certains robots détectent display:none) */
.form-piege {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  border: 0;
}

/* Message d'état après envoi (succès / erreur) */
.form-status {
  display: none;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.9375rem;
}

.form-status.is-visible {
  display: block;
}

.form-status--succes {
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid rgba(45, 212, 191, 0.4);
  color: #7ee8d8;
}

.form-status--erreur {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.4);
  color: #f8a3a3;
}

.form-note {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.contact-form .btn {
  justify-self: start;
}

/* --------------------------------------------------------------------------
   13. Bandeau d'appel à l'action
   -------------------------------------------------------------------------- */
.cta-band {
  padding-block: var(--space-10);
}

.cta-band-inner {
  position: relative;
  overflow: hidden;
  padding: var(--space-8) var(--space-4);
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.cta-band-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(32rem 16rem at 50% 0%, rgba(139, 140, 248, 0.16), transparent 70%);
  pointer-events: none;
}

.cta-band-inner > * {
  position: relative;
}

.cta-band p {
  max-width: 34rem;
  margin: var(--space-2) auto var(--space-5);
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   14. Pied de page
   -------------------------------------------------------------------------- */
.site-footer {
  margin-top: auto;
  padding-block: var(--space-8) var(--space-4);
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  padding-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1.2fr;
    gap: var(--space-6);
  }
}

.footer-brand p {
  margin-top: var(--space-2);
  max-width: 28rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.footer-title {
  margin-bottom: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--color-text);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   15. Animations d'apparition au défilement
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  translate: 0 24px;
  transition: opacity 600ms ease, translate 600ms ease;
}

.reveal.is-visible {
  opacity: 1;
  translate: 0 0;
}

/* Décalage progressif dans les grilles */
.card-grid > :nth-child(2),
.project-grid > :nth-child(2),
.process-list > :nth-child(2) {
  transition-delay: 80ms;
}

.card-grid > :nth-child(3),
.project-grid > :nth-child(3),
.process-list > :nth-child(3) {
  transition-delay: 160ms;
}

.card-grid > :nth-child(4),
.project-grid > :nth-child(4),
.process-list > :nth-child(4) {
  transition-delay: 240ms;
}

/* --------------------------------------------------------------------------
   16. Préférence de mouvement réduit (accessibilité)
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .pulse-line .pulse-beam {
    animation: none;
    stroke-dasharray: none;
    stroke-dashoffset: 0;
    opacity: 0.5;
  }

  .reveal {
    opacity: 1;
    translate: 0 0;
  }
}