/* ============================================
   COMPONENTS — Kolorlab
   Header, footer, CTA, chips, cards, parlons-couleur
   ============================================ */

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--white);
  padding-top: 12px; /* légèrement détaché du bord supérieur */
}

.header-inner {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  border: var(--stroke);
  background: var(--white);
  min-height: var(--header-height);
}

.header-logo {
  display: flex;
  align-items: center;
  padding-inline: var(--space-4);
  color: var(--black); /* le logo reste noir (Animation 02 retirée) */
}
/* Logo SVG inline (fill: currentColor) */
.header-logo svg {
  height: 20px;
  width: auto;
  display: block;
}

.header-nav {
  display: flex;
  align-items: stretch;
}

.nav-item {
  position: relative;
  display: flex;
}

.nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 0 22px;
  border-left: var(--stroke);
  font-size: 0.95rem;
  color: var(--black);
  background: var(--white);
  white-space: nowrap;
}

/* petit cercle plein sous le texte (hover + actif) */
.nav-link::after {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0;
}

.nav-link:hover {
  background: var(--black);
  color: var(--white);
}
.nav-link:hover::after {
  opacity: 1;
}

.nav-item.is-active .nav-link {
  background: var(--white);
  color: var(--black);
}
.nav-item.is-active .nav-link::after {
  opacity: 1;
  background: var(--black);
}

/* --- Dropdown sous-menus --- */
.nav-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  display: none;
  flex-direction: column;
  min-width: 230px;
  background: var(--white);
  border: var(--stroke);
  border-top: none;
  z-index: var(--z-dropdown);
}
.nav-item.has-dropdown:hover .nav-dropdown,
.nav-item.has-dropdown:focus-within .nav-dropdown {
  display: flex;
}
.dropdown-link {
  padding: 14px 20px;
  border-bottom: var(--stroke);
  font-size: 0.9rem;
  background: var(--white);
  color: var(--black);
}
.dropdown-link:last-child {
  border-bottom: none;
}
.dropdown-link:hover {
  background: var(--black);
  color: var(--white);
}

/* --- Burger (mobile) --- */
.header-burger {
  display: none;
  align-items: center;
  justify-content: center;
  padding-inline: var(--space-3);
  border-left: var(--stroke);
}
.header-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--black);
  position: relative;
}
.header-burger span::before,
.header-burger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--black);
}
.header-burger span::before { top: -7px; }
.header-burger span::after { top: 7px; }

/* Signature chromatique du menu mobile (remplie depuis nuanciers.json) */
.menu-signature { display: none; }

@media (max-width: 1080px) {
  .header-nav {
    position: fixed;
    inset: 0;
    top: 0;
    flex-direction: column;
    background: var(--white);
    padding: calc(var(--header-height) + 32px) var(--margin-mobile) var(--margin-mobile);
    transform: translateX(100%);
    transition: transform 0.45s var(--ease);
    z-index: var(--z-overlay);
    overflow-y: auto;
  }
  .site-header.nav-open .header-nav {
    transform: translateX(0);
  }

  /* Chaque lien = une case strokée pleine largeur (langage du header desktop),
     cascade d'apparition décalée à l'ouverture */
  .nav-item {
    display: block;
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
  }
  .site-header.nav-open .nav-item { opacity: 1; transform: translateY(0); }
  .site-header.nav-open .nav-item:nth-child(1) { transition-delay: 0.08s; }
  .site-header.nav-open .nav-item:nth-child(2) { transition-delay: 0.14s; }
  .site-header.nav-open .nav-item:nth-child(3) { transition-delay: 0.2s; }
  .site-header.nav-open .nav-item:nth-child(4) { transition-delay: 0.26s; }
  .site-header.nav-open .nav-item:nth-child(5) { transition-delay: 0.32s; }
  .site-header.nav-open .nav-item:nth-child(6) { transition-delay: 0.38s; }

  .nav-link {
    width: 100%;
    border: var(--stroke);
    margin-bottom: -1px; /* strokes partagés entre cases */
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    font-size: 1.05rem;
  }
  /* le point plein passe à droite de la case (hover/actif comme sur desktop) */
  .nav-link::after { margin-left: var(--space-2); }

  /* Sous-menus : cases en retrait */
  .nav-dropdown {
    position: static;
    display: none;
    border: none;
    min-width: 0;
    padding: var(--space-1) 0 var(--space-2) 24px;
  }
  .nav-item.has-dropdown:hover .nav-dropdown { display: none; }
  .nav-item.has-dropdown.open .nav-dropdown { display: flex; }
  .dropdown-link {
    border: var(--stroke);
    margin-bottom: -1px;
    padding: 12px 16px;
  }

  /* Signature : les 25 couleurs des nuanciers principaux en bas du menu */
  .menu-signature {
    display: grid;
    grid-template-columns: repeat(25, 1fr);
    height: 14px;
    margin-top: var(--space-5);
    border: var(--stroke);
    opacity: 0;
    transition: opacity 0.5s var(--ease) 0.45s;
  }
  .site-header.nav-open .menu-signature { opacity: 1; }
  .menu-signature span { display: block; }

  .header-burger { display: flex; }
  .site-header.nav-open .header-burger {
    position: fixed;
    right: var(--margin-mobile);
    top: 24px;
    z-index: calc(var(--z-overlay) + 1);
    background: var(--white);
    border: var(--stroke);
  }
  /* Burger → ✕ */
  .header-burger span { transition: background 0.2s var(--ease); }
  .header-burger span::before,
  .header-burger span::after { transition: transform 0.35s var(--ease), top 0.35s var(--ease); }
  .site-header.nav-open .header-burger span { background: transparent; }
  .site-header.nav-open .header-burger span::before { top: 0; transform: rotate(45deg); }
  .site-header.nav-open .header-burger span::after { top: 0; transform: rotate(-45deg); }
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--black);
  color: var(--white);
  padding-top: var(--space-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: var(--space-6);
  padding-bottom: var(--space-6);
}
.footer-logo-gradient {
  display: block;
  width: 150px;
  height: auto;
  margin-bottom: var(--space-2);
}
.footer-tagline {
  color: rgba(255, 255, 255, 0.75);
  max-width: 200px;
  margin-bottom: var(--space-3);
  font-size: 0.95rem;
}
.footer-socials {
  display: flex;
  gap: var(--space-2);
}
.footer-socials a {
  display: inline-flex;
  width: 24px;
  height: 24px;
  color: var(--white);
}
.footer-socials svg { width: 100%; height: 100%; }

.footer-col h4 {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
  color: rgba(255, 255, 255, 0.6);
}
.footer-col p,
.footer-col li {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 6px;
}
.footer-col a:hover {
  color: var(--white);
  text-decoration: underline;
}
.footer-nav li::marker { color: rgba(255, 255, 255, 0.4); }
.footer-nav { list-style: disc; padding-left: 18px; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-block: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}
.footer-bottom-links {
  display: flex;
  gap: var(--space-4);
}
.footer-bottom-links a:hover { text-decoration: underline; }

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

/* ============================================
   CTA — boutons d'action
   ============================================ */
.cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  background: var(--black);
  color: var(--white);
  border-radius: var(--radius-cta);
  font-size: 0.95rem;
  font-weight: var(--fw-medium);
  transition: transform 0.4s var(--ease), gap 0.4s var(--ease);
  border: 1px solid var(--black);
}
.cta:hover {
  transform: scale(1.02);
  gap: 18px;
}
.cta .cta-arrow {
  display: inline-flex;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}
.cta .cta-arrow svg { width: 100%; height: 100%; }

.cta--secondary {
  background: transparent;
  color: var(--black);
  border: 1px solid var(--black);
}
.cta--secondary:hover {
  background: var(--black);
  color: var(--white);
}
.cta--secondary .cta-arrow { color: currentColor; }

.cta--light {
  background: var(--white);
  color: var(--black);
}

/* ============================================
   CHIPS / SWATCHES
   ============================================ */
.chip {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
}
.chip-color {
  position: absolute;
  inset: 0;
}

/* Bande de chips (palette horizontale pleine largeur) */
.palette-band {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  width: 100%;
}
.palette-band .swatch {
  aspect-ratio: 1 / 1.4;
}

/* ============================================
   CARDS — articles / nuanciers
   ============================================ */
.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.card-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.card-date {
  font-size: var(--fs-date);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--gray-dark);
}
.card-title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-bold);
}
.card-text {
  font-size: 0.95rem;
  color: var(--gray-dark);
  line-height: 1.55;
}
.card-palette {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  height: 110px;
}

/* ============================================
   CTA-PARLONS-COULEUR (bloc avant footer)
   ============================================ */
.parlons {
  position: relative;
  background: var(--black);
  color: var(--white);
  overflow: hidden;
  padding: var(--space-section) var(--margin-side);
}
/* Contenu borné au max-width du site (le fond reste pleine largeur) */
.parlons-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.parlons-text {
  max-width: 560px;
}
.parlons-title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.parlons-sub {
  color: rgba(255, 255, 255, 0.85);
  max-width: 520px;
  line-height: 1.6;
}
.parlons-ctas {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
/* Boutons sur la mosaïque (cf. maquette) */
.cta.cta--white {
  background: var(--white);
  color: var(--black);
}
.cta.cta--bordered {
  background: var(--black);
  color: var(--white);
  border: 1px solid var(--white);
}

/* Mosaïque diagonale : grands carrés jointifs, couleurs des nuanciers */
.parlons-pattern {
  position: absolute;
  top: -45%;
  right: -12%;
  width: 70%;
  height: 200%;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 1fr;
  transform: rotate(45deg);
  gap: 0; /* carrés jointifs, cf. maquette */
}
.parlons-pattern span { display: block; }

@media (max-width: 900px) {
  .parlons-pattern { opacity: 0.3; width: 140%; right: -40%; }
  .parlons-ctas { position: relative; z-index: 3; }
}

/* ============================================
   STROKE BOX (cases encadrées génériques)
   ============================================ */
.box-stroke {
  border: var(--stroke);
  background: var(--white);
}

/* ============================================
   FORMULAIRES
   ============================================ */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--space-3);
}
.form-field label {
  font-size: 0.85rem;
  color: var(--gray-dark);
}
.form-field input,
.form-field select,
.form-field textarea {
  border: none;
  border-bottom: 1px solid var(--gray-stroke);
  padding: 10px 2px;
  background: transparent;
  font-size: 1rem;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-bottom-color: var(--black);
}
.form-field textarea {
  resize: vertical;
  min-height: 140px;
  border: 1px solid var(--gray-stroke);
  padding: 12px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--gray-dark);
  margin-bottom: var(--space-4);
}
.form-checkbox input { margin-top: 3px; }

@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; gap: 0; }
}

/* Confirmation panel (submit) */
.confirmation-panel {
  display: none;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  border: var(--stroke);
}
.confirmation-panel h3 {
  margin-bottom: var(--space-2);
}

/* ============================================
   BANDES NUANCIERS & CARTES NOUVEAUX (composants partagés)
   Hover : chips-rideaux qui remontent en stagger et révèlent l'image.
   ============================================ */

.nuancier-band {
  width: 100%;
  min-height: 520px;
  display: flex;
  align-items: stretch;
  margin-bottom: 50px;
}
.nuancier-band:last-child {
  margin-bottom: 0;
}
.nuancier-band-inner {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-8);
  align-items: stretch;
}
.nuancier-band.band--reverse .nuancier-band-inner {
  grid-template-columns: 1fr 1.1fr;
}
.nuancier-band.band--reverse .band-media {
  order: 2;
}

/* --- Média : flush au bord de la bande (cf. maquette), pleine hauteur --- */
.band-media {
  position: relative;
  min-height: 460px;
  overflow: hidden;
}
.band-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.band-chips {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}
.band-chip {
  background: var(--chip); /* aplat — dégradé retiré (lecture "ombre interne") */
  transition: transform 0.8s var(--ease);
}
/* Stagger gauche → droite (aller et retour) */
.band-chips .band-chip:nth-child(1) { transition-delay: 0ms; }
.band-chips .band-chip:nth-child(2) { transition-delay: 60ms; }
.band-chips .band-chip:nth-child(3) { transition-delay: 120ms; }
.band-chips .band-chip:nth-child(4) { transition-delay: 180ms; }
.band-chips .band-chip:nth-child(5) { transition-delay: 240ms; }

.nuancier-band:hover .band-chip,
.nouveau-card:hover .band-chip {
  transform: translateY(-101%);
}
@media (prefers-reduced-motion: reduce) {
  .band-chip { transition: none; }
}

/* --- Texte : numéro bold 16pt à gauche du titre --- */
.band-heading {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}
.band-num {
  font-size: 1rem;            /* 16pt — validé maquette */
  font-weight: var(--fw-bold);
  line-height: 1;
}
.band-text h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.4rem);
  font-weight: var(--fw-semibold);
}
.band-text p {
  margin-block: var(--space-3) var(--space-4);
  max-width: 46ch;
  line-height: 1.6;
  opacity: 0.92;
}
.band-cta {
  display: flex;
  justify-content: flex-end;
}
/* Le texte porte les marges (le média est full-bleed) */
.nuancier-band .band-text {
  align-self: center;
  padding-block: var(--space-8);
  padding-right: var(--margin-side);
}
.nuancier-band.band--reverse .band-text {
  padding-right: 0;
  padding-left: var(--margin-side);
}

/* --- Carte nouveau nuancier --- */
.nouveau-media {
  position: relative;
  height: 500px;
  overflow: hidden;
  margin-bottom: var(--space-3);
}
.nouveau-media .band-chips {
  position: absolute;
  inset: 0;
}
.nouveau-card .card-date {
  display: block;
  font-size: var(--fs-date);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-1);
}
.nouveau-card h4 {
  margin-bottom: var(--space-1);
}
.nouveau-card p {
  color: var(--gray-dark);
  margin-bottom: var(--space-2);
}

/* --- Responsive --- */
@media (max-width: 860px) {
  .nuancier-band { min-height: 0; }
  .nuancier-band-inner,
  .nuancier-band.band--reverse .nuancier-band-inner {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding-inline: var(--margin-mobile);
  }
  .nuancier-band.band--reverse .band-media { order: 0; }
  .band-media { min-height: 260px; height: 260px; }
  .nuancier-band .band-text,
  .nuancier-band.band--reverse .band-text {
    padding: 0 var(--margin-mobile) var(--space-5);
  }
  .nouveau-media { height: 200px; }
}


/* ============================================
   MAQUETTES INTERACTIVES (sandwich de calques)
   ============================================ */
.maquette {
  position: relative;
  width: 100%;
  overflow: hidden;
  isolation: isolate; /* le blend overlay reste confiné à la maquette */
  margin: 0;
}
.maquette .maq-photo,
.maquette .maq-original,
.maquette .maq-tint {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.maquette .maq-photo,
.maquette .maq-original {
  object-fit: cover;
  display: block;
}
.maquette .maq-tint {
  -webkit-mask-size: cover;
  mask-size: cover;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  transition: background 0.6s var(--ease);
}


/* ============================================
   TENDANCES — rangées strokées en zigzag
   (composant partagé : accueil + page Actualités)
   ============================================ */
/* --- Tendances : rangées strokées en zigzag --- */
.tendance-row {
  position: relative;
  border: var(--stroke);
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-bottom: var(--space-8);
  margin-right: 26.5%;
  /* rangée 1/2 : collée au bord gauche */
  background: var(--white);
}

/* Zigzag : une rangée sur deux collée au bord droit
   (double classe pour battre la spécificité de la règle de base) */
.tendance-row.tendance-row--offset {
  margin-left: 26.5%;
  margin-right: 0;
}

.t-media {
  position: relative;
  min-height: 420px;
}

.t-media img,
.t-media .img-placeholder {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.t-text {
  padding: var(--space-5) var(--space-4) calc(var(--space-5) + 48px);
}

.t-text .card-date {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
}

.t-text h3 {
  font-size: clamp(1.5rem, 2.3vw, 2rem);
  font-weight: var(--fw-semibold);
  line-height: 1.15;
  margin-bottom: var(--space-3);
}

.t-text p {
  color: var(--gray-dark);
}

/* Onglet "Article" posé sur le bord supérieur */
.article-tab {
  position: absolute;
  top: -1px;
  left: -1px;
  z-index: 2;
  background: var(--white);
  border: var(--stroke);
  padding: 3px 18px;
  font-size: 0.8rem;
}

/* CTA calé dans le coin inférieur droit (recouvre le stroke) */
.t-cta {
  position: absolute;
  right: -1px;
  bottom: -1px;
}

@media (max-width: 900px) {
  .tendance-row,
  .tendance-row.tendance-row--offset {
    grid-template-columns: 1fr; /* image dessus, texte dessous */
    margin-left: 0;
    margin-right: 0;
  }
  .t-media {
    min-height: 0;
  }
  .t-media img,
  .t-media .img-placeholder {
    position: static;
    aspect-ratio: 4 / 3; /* hauteur propre — rien ne s'écrase */
  }
  .t-text {
    padding-bottom: calc(var(--space-5) + 56px); /* place pour le CTA en coin */
  }
}

/* ============================================
   COMMENT ÇA MARCHE — rail 4 étapes (composant partagé
   accueil + intro du configurateur, cf. maquette palette-0)
   ============================================ */
.how-rail {
  position: relative;
  padding-block: var(--space-5) 0;
}
/* Ligne reliant les 4 cercles (centres des colonnes 1 et 4 = 12.5% / 87.5%) */
.how-rail::before {
  content: "";
  position: absolute;
  top: calc(var(--space-5) + 24px);
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: var(--black);
  z-index: 0;
}
.how-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  position: relative;
  z-index: 1;
}
.how-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
/* Cercle numéroté — s'inverse au survol */
.how-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: var(--fw-medium);
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 2;
  transition: background 0.4s var(--ease), color 0.4s var(--ease), transform 0.4s var(--ease);
}
.how-panel:hover .how-num {
  background: var(--black);
  color: var(--white);
  transform: scale(1.1);
}
/* Cadre de démo carré */
.how-demo {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--white);
  border: var(--stroke);
  margin-bottom: var(--space-3);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.3s var(--ease);
}
.how-panel:hover .how-demo {
  border-color: var(--black);
}
.how-panel h4 {
  margin-bottom: var(--space-1);
}
.how-panel p {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--gray-dark);
  max-width: 26ch;
}

/* Démo 01 — colonnes de la palette */
.how-demo-colors {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  padding: 28px;
  width: 100%;
  height: 100%;
}

/* Démo 02 — grille de pictos inclinée, case sélectionnée inversée */
.how-demo-supports {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  width: 130%;
  height: 130%;
  transform: rotate(-8deg);
  flex-shrink: 0;
}
.how-demo-supports > div {
  border: 1px solid var(--gray-stroke);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
}
.how-demo-supports img {
  width: 32%;
  height: auto;
}
.how-demo-supports > div.selected {
  background: var(--black);
}
.how-demo-supports > div.selected img {
  filter: invert(1);
}

/* Démo 03 — moment-héros : tuiles qui cyclent la palette */
.how-demo-result {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 28px;
  width: 100%;
  height: 100%;
}
.how-demo-result > div {
  position: relative;
  overflow: hidden;
}
.how-tile {
  width: 100%;
  height: 100%;
  transition: background 0.8s var(--ease);
}
/* Lumière/ombre : donne la matière (cf. exemple) */
.how-demo-result > div::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(255, 255, 255, 0.14) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(0, 0, 0, 0.18) 0%, transparent 60%);
  z-index: 2;
  pointer-events: none;
}

/* Démo 04 — mini calendrier */
.how-demo-calendar {
  display: flex;
  flex-direction: column;
  width: 70%;
  height: 70%;
}
.how-demo-calendar .cal-head {
  background: var(--black);
  color: var(--white);
  padding: 8px 12px;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: center;
}
.how-demo-calendar .cal-grid {
  background: var(--white);
  border: 1px solid var(--gray-stroke);
  border-top: 0;
  flex: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 1px;
  padding: 4px;
}
.how-demo-calendar .cal-grid > div {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  color: var(--gray-dark);
}
.how-demo-calendar .cal-grid > div.highlight {
  background: var(--black);
  color: var(--white);
}

@media (max-width: 1024px) {
  .how-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
  }
  .how-rail::before { display: none; }
}
@media (max-width: 560px) {
  .how-grid { grid-template-columns: 1fr; }
}

/* CTA centré sous le rail "Comment ça marche" */
.steps-cta {
  display: flex;
  justify-content: center;
  margin-top: var(--space-6);
}