/* ============================================================
   DESIGN SYSTEM — Laur'Itech v2 (Mauve)
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  /* Backgrounds */
  --color-bg:         #F5F3FA;
  --color-surface:    #EBE8F5;
  --color-surface-2:  #E2DDEF;
  --color-surface-3:  #DDD5EE;
  --color-raised:     #FAFAFE;
  --color-dark:       #3D2B5E;

  /* Text */
  --color-text:       #3D2B5E;
  --color-text-muted: #6B5F7A;
  --color-text-faint: #A98DD0;
  --color-text-inv:   #FAFAFE;

  /* Accents */
  --color-primary:      #7B5EA7;
  --color-primary-dark: #5A3E85;
  --color-primary-lt:   #DDD5EE;
  --color-primary-pale: #F0ECFA;
  --color-rose:         #C4678A;
  --color-rose-dk:      #A0456A;
  --color-rose-lt:      #F0D4E2;
  --color-rose-pale:    #FAF0F5;
  --color-cyan:         #5C78B8;
  --color-cyan-lt:      #C8D5EE;
  --color-cyan-pale:    #EBF0FA;

  /* Borders */
  --color-border:   #DDD5EE;
  --color-border-s: #EBE8F5;

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, #7B5EA7 0%, #C4678A 100%);
  --gradient-card:  linear-gradient(145deg, #FAFAFE, #F5F3FA);

  /* Fonts */
  /* Titres : même famille que le corps, différenciés par la graisse et l'interlettrage */
  --font-heading: 'DM Sans', system-ui, sans-serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  /* Radii */
  --radius:    8px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-card: 0 2px 12px rgba(61,43,94,0.07);
  --shadow-glow: 0 10px 40px rgba(123,94,167,0.16);

  /* Misc */
  --transition: 0.28s cubic-bezier(0.25,0,0,1);
  --nav-height: 68px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ============================================================
   CURSEUR PIXEL (style Habbo) — mauve, PNG inline 20x28 / 24x24
   ============================================================ */
:root {
  --cursor-arrow: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAAYElEQVR42mOw1Y77T03MgA7oZsGRlS8owoPHguq45SRhkoNo0FhA0OBBawHRBg9aC4ZeHMDkaZZMaWYBrsKMZIvobgEuhWRbRDcLiE12pFpEewvIBYQsGvwWENtooLkFAOk3t4LiVbAWAAAAAElFTkSuQmCC") 0 0;
  --cursor-hand:  url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAAaCAYAAACzdqxAAAAAZ0lEQVR42mNgwAFsteP+I2MGagGaG3xk5QswppoFowYPQ4MpToZ0N7g6bjkYk20BxQbjUkCsweh8+hmMK5Jg4jADcOGBMxjdAmINxrCAZgYTcjmxBtLfYFwWDF+DCZYZNDeYXExzgwFb1RnG/K2vdAAAAABJRU5ErkJggg==") 8 0;
}

html,
body {
  cursor: var(--cursor-arrow), auto;
}

a,
button,
label[for],
summary,
[role="button"],
input[type="submit"],
input[type="button"],
input[type="checkbox"],
input[type="radio"],
select {
  cursor: var(--cursor-hand), pointer;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="search"],
input[type="password"],
textarea {
  cursor: text;
}

:disabled { cursor: not-allowed; }

/* Pas de curseur custom sur écrans tactiles */
@media (hover: none), (pointer: coarse) {
  html, body,
  a, button, label[for], summary, [role="button"],
  input[type="submit"], input[type="button"],
  input[type="checkbox"], input[type="radio"], select {
    cursor: auto;
  }
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Subtle dot texture in hero */
.hero {
  background-image: radial-gradient(circle, rgba(123,94,167,0.06) 1px, transparent 1px);
  background-size: 32px 32px;
}

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

/* ============================================================
   SCROLL PROGRESS BAR
   ============================================================ */
#scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: var(--gradient-brand);
  z-index: 1000;
  transition: width 0.1s linear;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  padding: 0 2rem;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

.nav.scrolled {
  background: rgba(245,243,250,0.93);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.nav__logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-dark);
  letter-spacing: -0.03em;
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}

.nav__logo::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-rose);
  border-radius: 50%;
  margin-left: 1px;
  margin-bottom: 2px;
}

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

.nav__links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1.5px;
  background: var(--color-rose);
  border-radius: 2px;
  transition: width var(--transition);
}

.nav__links a:hover,
.nav__links a.active { color: var(--color-dark); }
.nav__links a:hover::after,
.nav__links a.active::after { width: 100%; }

.nav__cta {
  padding: 0.5rem 1.25rem;
  background: var(--color-dark);
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-inv) !important;
  transition: background var(--transition), transform var(--transition);
}
.nav__cta:hover { background: var(--color-primary-dark) !important; transform: translateY(-1px); }
.nav__cta::after { display: none !important; }

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 910;
}
.nav__burger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
@media (max-width: 768px) {
  .nav__burger { display: flex; }
  .nav__links {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: rgba(245,243,250,0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
    z-index: 9990;
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  .nav__links.open { transform: translateX(0); }
  .nav__links a { font-size: 1.1rem; color: var(--color-dark); }
  .nav__burger { z-index: 9999; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-height) + 2rem) 2rem 4rem;
  text-align: left;
  background: var(--color-bg);
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
}

.hero__orb--1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(123,94,167,0.13) 0%, transparent 70%);
  top: -200px; right: -100px;
}

.hero__orb--2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(92,120,184,0.10) 0%, transparent 70%);
  bottom: -100px; left: -100px;
}

.hero__orb--3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(196,103,138,0.12) 0%, transparent 70%);
  top: 40%; left: 50%;
  transform: translate(-50%, -50%);
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1180px;
  display: grid;
  /* Titre sur 2/3 de la largeur, illustration sur 1/3 max */
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(1.5rem, 3vw, 3rem);
}

.hero__text {
  max-width: 100%;
}

.hero__visual {
  display: flex;
  justify-content: center;
}

.hero-pixel {
  width: 100%;
  max-width: 360px;
  height: auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  filter: drop-shadow(0 18px 28px rgba(61, 43, 94, 0.13));
}

.hero__title {
  font-family: var(--font-mono);
  font-weight: 700;
  font-style: normal;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  line-height: 1.16;
  letter-spacing: -0.03em;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
}

.hero__title-gradient {
  font-weight: 700;
  font-style: normal;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
  font-weight: 400;
}

.hero__typing-wrapper {
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: 2.5rem;
  min-height: 2em;
  font-family: var(--font-mono);
}

.hero__typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--color-primary);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

.hero__ctas {
  display: flex;
  gap: 1rem;
  justify-content: flex-start;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .hero__content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    max-width: 640px;
  }
  .hero__visual { order: 2; justify-content: flex-start; }
  .hero-pixel { max-width: 380px; }
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-faint);
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  animation: bounceY 2s ease-in-out infinite;
  z-index: 2;
}

.hero__scroll svg { width: 18px; height: 18px; }
.hero__scroll:hover { color: var(--color-primary); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.75rem;
  border-radius: 6px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  transition: transform var(--transition), opacity var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-dark);
  color: var(--color-text-inv);
  box-shadow: 0 4px 16px rgba(61,43,94,0.22);
}
.btn--primary:hover { transform: translateY(-2px); background: var(--color-primary-dark); box-shadow: 0 8px 28px rgba(61,43,94,0.28); }

.btn--outline {
  border: 1.5px solid var(--color-border);
  color: var(--color-dark);
  background: transparent;
}
.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
  background: var(--color-primary-pale);
}

.btn--sm {
  padding: 0.45rem 1.1rem;
  font-size: 0.82rem;
}

/* ============================================================
   SECTION COMMONS
   ============================================================ */
section { padding: 6rem 2rem; }

/* Chaque bloc (hors hero) tient dans une hauteur d'écran :
   contenu centré verticalement + place réservée en bas pour la flèche. */
section:not(.hero) {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  /* le padding haut ne descend jamais sous la hauteur de la nav fixe */
  padding: clamp(4.25rem, 9vh, 5.5rem) 2rem clamp(3.5rem, 7vh, 4.5rem);
}

.section__inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

/* --- Flèche « bloc suivant » --- */
.section__next {
  position: absolute;
  left: 50%;
  bottom: clamp(0.75rem, 1.8vh, 1.5rem);
  transform: translateX(-50%);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1.5px solid var(--color-border);
  background: var(--color-raised);
  color: var(--color-primary);
  box-shadow: 0 4px 14px rgba(61,43,94,0.10);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
  animation: bounceY 2.6s ease-in-out infinite;
  z-index: 3;
}

.section__next svg { width: 18px; height: 18px; }

.section__next:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-pale);
  box-shadow: 0 8px 20px rgba(123,94,167,0.25);
}

/* Variante sur fond sombre (stack) */
#stack .section__next {
  border-color: rgba(221,213,238,0.22);
  background: #46326B;
  color: var(--color-text-inv);
  box-shadow: 0 4px 14px rgba(26,17,45,0.45);
}

#stack .section__next:hover {
  border-color: rgba(240,185,208,0.55);
  background: #56407F;
}

.section__label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-rose);
  margin-bottom: 0.7rem;
}

.section__label::before {
  content: '';
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-rose);
  border-radius: 2px;
  flex-shrink: 0;
}

.section__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.75rem, 3.6vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.035em;
  color: var(--color-dark);
  margin-bottom: 0.9rem;
}

.section__title strong,
.section__title .gradient-text { font-style: normal; font-weight: 600; }

.section__desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 580px;
  line-height: 1.7;
}

.section__header { margin-bottom: clamp(1.25rem, 3.5vh, 2.5rem); }

/* ============================================================
   À PROPOS
   ============================================================ */
#apropos { background: var(--color-surface); }
#apropos .section__desc { line-height: 1.6; max-width: none; }

.apropos__grid {
  display: grid;
  /* la colonne photo se cale sur la largeur de l'image :
     tout l'espace restant va au texte (moins de lignes = bloc plus court) */
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: center;
}

.apropos__image-wrap {
  position: relative;
}

.apropos__image-ring {
  position: relative;
  display: inline-block;
  border-radius: var(--radius-lg);
}

.apropos__image-ring::before {
  content: '';
  position: absolute;
  inset: -3px;
  background: var(--gradient-brand);
  border-radius: calc(var(--radius-lg) + 3px);
  z-index: 0;
}

.apropos__image-ring img {
  position: relative;
  z-index: 1;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: clamp(220px, 34vh, 340px);
  display: block;
}

.apropos__stats {
  display: flex;
  gap: 1.75rem;
  margin: 0.7rem 0;
  flex-wrap: wrap;
}

.apropos__stat-value {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.75rem;
  letter-spacing: -0.03em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.apropos__stat-label {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  margin-top: 0.3rem;
  letter-spacing: 0.02em;
}

.apropos__timeline {
  margin: 0.9rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

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

.apropos__timeline-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-rose);
  min-width: 42px;
  padding-top: 2px;
}

.apropos__timeline-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  border-left: 2px solid var(--color-border);
  padding-left: 1rem;
  line-height: 1.5;
}

.apropos__btn-linkedin {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 1.3rem;
  border: 1.5px solid rgba(10,102,194,0.35);
  border-radius: 6px;
  color: #3a66a8;
  background: rgba(10,102,194,0.06);
  font-weight: 500;
  font-size: 0.875rem;
  transition: background var(--transition), transform var(--transition);
}
.apropos__btn-linkedin:hover {
  background: rgba(10,102,194,0.12);
  transform: translateY(-2px);
}

@media (max-width: 900px) {
  .apropos__grid { grid-template-columns: 1fr; gap: 3rem; }
  .apropos__image-ring img { max-width: 280px; }
}

/* ============================================================
   SERVICES
   ============================================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.service-card {
  background: var(--color-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.15rem, 2.4vh, 1.75rem);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
  border-color: var(--color-primary-lt);
}

.service-card > * { position: relative; z-index: 1; }

.service-card__icon {
  width: 48px; height: 48px;
  border-radius: var(--radius);
  background: var(--color-primary-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.85rem;
}

.service-card__title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-dark);
  margin-bottom: 0.65rem;
  letter-spacing: -0.01em;
}

.service-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 0.85rem;
}

.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* ============================================================
   TAGS
   ============================================================ */
.tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  background: var(--color-primary-pale);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-lt);
}

.tag--cyan {
  background: var(--color-cyan-pale);
  color: var(--color-cyan);
  border-color: var(--color-cyan-lt);
}

.tag--rose {
  background: var(--color-rose-pale);
  color: var(--color-rose);
  border-color: var(--color-rose-lt);
}

.tag--green {
  background: #EFF9F5;
  color: #3A7D5A;
  border-color: #B8DECE;
}

/* ============================================================
   PORTFOLIO
   ============================================================ */
#portfolio { background: var(--color-surface); }

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

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

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
  border-color: var(--color-primary-lt);
}

.project-card__img {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-surface-2);
}

.project-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-card__img img { transform: scale(1.05); }

.project-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(61,43,94,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.project-card:hover .project-card__overlay { opacity: 1; }

.project-card__body { padding: 1.4rem; }

.project-card__title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.project-card__desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  line-height: 1.65;
}

.project-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.project-card__tags { display: flex; gap: 0.4rem; flex-wrap: wrap; }

/* ============================================================
   STACK TECHNIQUE
   ============================================================ */
#stack {
  background: var(--color-dark);
  position: relative;
  overflow: hidden;
}

#stack::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196,103,138,0.07) 0%, transparent 70%);
  pointer-events: none;
}

#stack::after {
  content: '';
  position: absolute;
  bottom: -150px; left: -100px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(123,94,167,0.08) 0%, transparent 70%);
  pointer-events: none;
}

#stack .section__inner { position: relative; z-index: 1; }

#stack .section__label { color: var(--color-text-faint); }
#stack .section__label::before { background: var(--color-text-faint); }
#stack .section__title { color: var(--color-text-inv); }

/* --- Scénario d'automatisation (bulles reliées en diagonales) ---
   Le conteneur garde le ratio du viewBox SVG : 1 unité SVG = 1 % identique
   pour le tracé et pour les bulles, donc les pointillés arrivent pile
   au centre de chaque bulle. Les positions viennent de --x / --y (large)
   et --mx / --my (quinconce mobile), posées sur chaque module. */
.stack-scenario {
  --chip: 6.34cqw;              /* 76 unités sur un viewBox de 1200 */
  --label-w: 150px;
  --wire: rgba(169,141,208,0.5);
  --wire-hot: #F0B9D0;
  position: relative;
  container-type: inline-size;
  width: 100%;
  aspect-ratio: 1200 / 470;
  /* borné en hauteur pour que le bloc tienne dans l'écran */
  max-width: min(100%, calc(46vh * 1200 / 470));
  margin: 1rem auto 0;
}

.stack-flow,
.stack-spark {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.stack-flow { z-index: 0; }

/* Le paquet lumineux passe DERRIÈRE les bulles (qui sont opaques) :
   même plan que les liaisons, mais plus loin dans le DOM donc au-dessus d'elles. */
.stack-spark {
  z-index: 0;
  pointer-events: none;
}

.stack-flow--narrow { display: none; }

.stack-flow__path {
  fill: none;
  stroke: var(--wire);
  stroke-width: 2;
  stroke-dasharray: 7 7;
  stroke-linecap: round;
}

.stack-spark__halo {
  fill: var(--wire-hot);
  opacity: 0.22;
}

.stack-spark__core {
  fill: var(--wire-hot);
  filter: drop-shadow(0 0 6px rgba(240,185,208,0.9));
}

/* --- Bulles --- */
.stack-scenario__nodes {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.stack-node {
  --ring: #A98DD0;
  --glow: rgba(169,141,208,0.55);
  --hot:  #EDE3FA;
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--label-w);
  transform: translate(-50%, calc(var(--chip) / -2));
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
}

.stack-node__chip {
  width: var(--chip);
  height: var(--chip);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  /* opaque : masque les liaisons et le paquet lumineux qui passent derrière */
  background: radial-gradient(circle at 50% 36%, #4C3675 0%, #2C1F49 100%);
  border: 2px solid var(--ring);
  box-shadow:
    inset 0 0 10px rgba(18,11,32,0.55),
    inset 0 0 7px var(--glow),
    0 0 9px 1px var(--glow),
    0 4px 16px rgba(26,17,45,0.5);
  transition: transform 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
}

/* Néons alternés (mauve · rose · bleuté), déclinés de la palette du site.
   Déclarés sur .stack-node pour que la bulle ET le libellé en héritent. */
.stack-node:nth-child(3n+1) {
  --ring: #A98DD0; --glow: rgba(169,141,208,0.6); --hot: #EDE3FA;
}
.stack-node:nth-child(3n+2) {
  --ring: #EE7FA8; --glow: rgba(238,127,168,0.55); --hot: #FBDEE9;
}
.stack-node:nth-child(3n+3) {
  --ring: #7FA8E8; --glow: rgba(127,168,232,0.55); --hot: #DEE9FB;
}

.stack-node__chip svg {
  width: 48%;
  height: 48%;
}

.stack-node:hover .stack-node__chip {
  transform: translateY(-3px);
  border-color: var(--hot);
  box-shadow:
    inset 0 0 10px rgba(18,11,32,0.45),
    inset 0 0 9px var(--glow),
    0 0 14px 2px var(--glow),
    0 10px 24px rgba(123,94,167,0.4);
}

/* Le paquet lumineux arrive sur la bulle : elle s'embrase, puis retombe en douceur */
.stack-node.lit .stack-node__chip {
  transform: translateY(-2px) scale(1.08);
  border-color: var(--hot);
  box-shadow:
    inset 0 0 10px rgba(18,11,32,0.35),
    inset 0 0 12px var(--glow),
    0 0 18px 3px var(--glow),
    0 0 38px 9px var(--glow);
  transition-duration: 0.14s;
}

.stack-node__name,
.stack-node__desc { transition: color 0.5s ease, text-shadow 0.5s ease; }

.stack-node.lit .stack-node__name {
  color: #FFFFFF;
  text-shadow: 0 0 12px var(--glow), 0 1px 4px rgba(26,17,45,0.85);
  transition-duration: 0.14s;
}

.stack-node__name {
  font-size: clamp(0.72rem, 0.95cqw, 0.85rem);
  font-weight: 600;
  color: var(--color-text-inv);
  line-height: 1.25;
  text-shadow: 0 1px 4px rgba(26,17,45,0.85);
}

.stack-node__desc {
  font-family: var(--font-mono);
  font-size: clamp(0.55rem, 0.7cqw, 0.62rem);
  color: var(--color-text-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.3;
  margin-top: -0.35rem;
  text-shadow: 0 1px 4px rgba(26,17,45,0.85);
}

/* --- Quinconce mobile --- */
@media (max-width: 880px) {
  .stack-scenario {
    --chip: 19cqw;             /* 76 unités sur un viewBox de 400 */
    --label-w: 110px;
    aspect-ratio: 400 / 1120;
  }

  .stack-flow--wide { display: none; }
  .stack-flow--narrow { display: block; }

  .stack-node {
    left: var(--mx);
    top: var(--my);
  }

  .stack-node__name { font-size: 0.78rem; }
  .stack-node__desc { font-size: 0.55rem; }
}

/* ============================================================
   CONTACT
   ============================================================ */
#contact { background: var(--color-surface); }

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}

.contact__info-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
  color: var(--color-dark);
  margin-bottom: 1rem;
}

.contact__info-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.contact__info-items {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact__info-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.contact__info-item a:hover { color: var(--color-primary); }

.contact__info-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius);
  background: var(--color-rose-lt);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-rose);
}

.contact__form {
  background: var(--color-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.35rem, 3vh, 2.25rem);
  box-shadow: 0 6px 24px rgba(61,43,94,0.07);
}

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

.form__group {
  margin-bottom: clamp(0.6rem, 1.6vh, 1.1rem);
}

.form__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.form__label span { color: var(--color-rose); margin-left: 2px; }

.form__input,
.form__textarea {
  width: 100%;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.6rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-dark);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form__input::placeholder,
.form__textarea::placeholder { color: var(--color-text-faint); }

.form__input:focus,
.form__textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(123,94,167,0.12);
}

.form__input.error { border-color: var(--color-rose); }
.form__error { font-size: 0.72rem; color: var(--color-rose); margin-top: 0.35rem; display: none; }
.form__error.visible { display: block; }

.form__textarea { min-height: clamp(64px, 10vh, 120px); resize: vertical; }

.form__submit {
  width: 100%;
  padding: 0.9rem;
  background: var(--color-dark);
  color: var(--color-text-inv);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background var(--transition), transform var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}
.form__submit:hover:not(:disabled) { background: var(--color-primary-dark); transform: translateY(-1px); }
.form__submit:disabled { opacity: 0.55; cursor: not-allowed; }

.form__status {
  display: none;
  padding: 1rem;
  border-radius: var(--radius);
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  margin-top: 1rem;
}
.form__status.success {
  display: block;
  background: #EFF9F5;
  border: 1px solid #B8DECE;
  color: #3A7D5A;
}
.form__status.error-msg {
  display: block;
  background: var(--color-rose-pale);
  border: 1px solid var(--color-rose-lt);
  color: var(--color-rose-dk);
}

@media (max-width: 900px) {
  .contact__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .form__row { grid-template-columns: 1fr; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-dark);
  border-top: 1px solid rgba(221,213,238,0.1);
  padding: 3rem 2rem 2rem;
}

.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(221,213,238,0.1);
  margin-bottom: 2rem;
}

.footer__brand-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.03em;
  color: var(--color-text-inv);
  margin-bottom: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}

.footer__brand-logo::after {
  content: '◆';
  font-size: 0.5em;
  color: var(--color-rose);
  margin-left: 2px;
  font-style: normal;
  vertical-align: middle;
}

.footer__brand-desc {
  font-size: 0.82rem;
  color: var(--color-text-faint);
  line-height: 1.7;
  max-width: 280px;
}

.footer__col-title {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 1.25rem;
}

.footer__links {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
  align-items: center;
}

.footer__links a {
  font-size: 0.82rem;
  color: var(--color-text-faint);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--color-text-inv); }

.footer__socials {
  display: flex;
  gap: 0.65rem;
}

.footer__social {
  width: 38px; height: 38px;
  border-radius: var(--radius);
  border: 1px solid rgba(221,213,238,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-faint);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.footer__social:hover {
  border-color: rgba(196,103,138,0.4);
  color: var(--color-rose);
  background: rgba(196,103,138,0.08);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-faint);
  flex-wrap: wrap;
  gap: 1rem;
  letter-spacing: 0.02em;
}

.footer__bottom a { transition: color var(--transition); }
.footer__bottom a:hover { color: var(--color-text-inv); }

@media (max-width: 768px) {
  .footer__top { grid-template-columns: 1fr; gap: 2rem; }
}

/* ============================================================
   COOKIE BANNER
   ============================================================ */
#cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 800;
  background: rgba(245,243,250,0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--color-border);
  padding: 1.25rem 2rem;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
}

#cookie-banner.visible { transform: translateY(0); }

.cookie-banner__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.cookie-banner__text {
  flex: 1;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  min-width: 240px;
}

.cookie-banner__text a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cookie-banner__btns {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* ============================================================
   UTILITIES
   ============================================================ */
.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

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

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--color-surface); }
::-webkit-scrollbar-thumb { background: var(--color-surface-3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }

@media (max-width: 768px) {
  section { padding: 4rem 1.25rem; }
  section:not(.hero) { padding-left: 1.25rem; padding-right: 1.25rem; }
  .hero__ctas { flex-direction: column; align-items: flex-start; }
  .btn { width: 100%; max-width: 280px; justify-content: center; }
}