/* =============================================================================
   🎛️ EPC GROUP V3 / Navigation — assets/css/epc-v3.css
   =============================================================================
   Objectif:
   - Réutiliser le rendu du menu de référence type V1 dans l'environnement V3.
   - Garder les boutons/liens fonctionnels propres à la V3.
   - Porter aussi les ajustements ergonomiques spécifiques EPC V3 (ex: mosaïque visuelle accueil).
   -
   Portée:
   - Fait: grand menu, plan complet, bloc actif, stepper, ajustements visuels locaux.
   - Ne fait pas: refonte du thème global ou des contenus métier.
   -
   Dépendances / Prérequis:
   - `assets/css/html-light.css`
   - `assets/js/epc-v3.js`
   -
   Entrées attendues:
   - `.site-nav[data-smart-nav]`
   - `.portal-nav-main`
   - `.group-tab`, `.context-link`, `.nav-step-link`, `.drawer-link`, `.nav-link`
   - `.epc-visual-mosaic`, `.epc-visual-tile`
   -
   Sorties:
   - Menu principal clair et lisible dans le flux.
   - Mosaïque visuelle plus lisible sur l’accueil EPC.
   -
   Hypothèses & risques:
   - Hypothèse: le thème expose `--line`, `--ink`, `--muted`, `--accent`,
     `--nav-bg`, `--chip-bg`, `--row-hover`, `--shadow`.
   - Risque faible: si le thème amont change fortement, un réalignement léger
     sera nécessaire.
   -
   Conventions:
   - Surcharges ciblées.
   - Même palette que l'environnement hôte.
   -
   Sections:
   - 🔍 Base V1
   - 🧭 Grand menu
   - 🖼️ Mosaïque visuelle accueil
   - 📱 Responsive
   ============================================================================= */

/* =============================================================================
   🔍 BASE V1
   ============================================================================= */

.site-nav[data-smart-nav] {
  --epc-nav-surface: var(--nav-bg, rgba(255, 255, 255, 0.92));
  --epc-nav-panel: var(--panel-bg, var(--chip-bg, rgba(255, 255, 255, 0.88)));
  --epc-nav-chip: var(--chip-bg, rgba(255, 255, 255, 0.88));
  --epc-nav-hover: var(--row-hover, rgba(2, 132, 199, 0.18));
  --epc-nav-shadow-soft: 0 10px 24px rgba(15, 23, 42, 0.10);
  display: grid;
  gap: 12px;
  padding: 18px 20px;
  border-radius: 20px;
  background: var(--epc-nav-surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transition:
    padding .18s ease,
    gap .18s ease,
    border-radius .18s ease,
    box-shadow .18s ease;
}

.site-nav[data-smart-nav] a:hover,
.site-nav[data-smart-nav] .nav-drawer > summary:hover,
.site-nav[data-smart-nav] .nav-group-toggle:hover {
  text-decoration: none;
}

.site-nav[data-smart-nav] .portal-nav-main {
  display: grid;
  gap: 12px;
}

.site-nav[data-smart-nav] .portal-nav-compact {
  display: none;
}

.site-nav[data-smart-nav] .portal-nav-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.site-nav[data-smart-nav] .brand,
.site-nav[data-smart-nav] .compact-brand {
  color: var(--ink);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.site-nav[data-smart-nav] .brand {
  flex: 1 1 320px;
  min-width: 240px;
  font-size: 1.05rem;
}

.site-nav[data-smart-nav] .portal-nav-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.site-nav[data-smart-nav] .nav-badge,
.site-nav[data-smart-nav] .group-tab-count,
.site-nav[data-smart-nav] .drawer-link-index,
.site-nav[data-smart-nav] .context-link-index {
  display: inline-grid;
  place-items: center;
  min-width: 1.8rem;
  height: 1.8rem;
  padding: 0 0.35rem;
  border-radius: 999px;
  background: #eaf2ff;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  line-height: 1;
}

.site-nav[data-smart-nav] .nav-badge {
  min-width: auto;
  height: auto;
  padding: 0.42rem 0.72rem;
  border: 1px solid rgba(11, 95, 255, 0.16);
  background: var(--epc-nav-chip);
  color: var(--muted);
}

.site-nav[data-smart-nav] .nav-drawer {
  position: relative;
  margin-left: auto;
}

.site-nav[data-smart-nav] .nav-drawer > summary {
  list-style: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0.65rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--epc-nav-panel);
  color: var(--ink);
  cursor: pointer;
  font-weight: 700;
  box-shadow: var(--epc-nav-shadow-soft);
  transition: border-color .16s ease, background .16s ease;
}

.site-nav[data-smart-nav] .nav-drawer > summary::-webkit-details-marker {
  display: none;
}

.site-nav[data-smart-nav] .nav-drawer[open] > summary {
  border-color: rgba(11, 95, 255, 0.28);
  background: linear-gradient(135deg, rgba(11, 95, 255, 0.12), rgba(15, 118, 110, 0.12));
}

.site-nav[data-smart-nav] .nav-drawer-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: min(980px, calc(100vw - 32px));
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.14);
}

.site-nav[data-smart-nav] .drawer-header {
  display: grid;
  gap: 6px;
  margin-bottom: 14px;
}

.site-nav[data-smart-nav] .drawer-kicker,
.site-nav[data-smart-nav] .nav-context-kicker,
.site-nav[data-smart-nav] .nav-step-label,
.site-nav[data-smart-nav] .nav-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--muted);
}

.site-nav[data-smart-nav] .drawer-intro,
.site-nav[data-smart-nav] .drawer-link-body span:last-child,
.site-nav[data-smart-nav] .compact-meta span {
  color: var(--muted);
  font-size: 0.92rem;
}

.site-nav[data-smart-nav] .drawer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.site-nav[data-smart-nav] .drawer-group {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(248, 251, 255, 0.96), rgba(255, 255, 255, 0.96));
}

.site-nav[data-smart-nav] .drawer-group-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.88rem;
}

.site-nav[data-smart-nav] .drawer-group-head strong,
.site-nav[data-smart-nav] .drawer-link-body strong {
  color: var(--ink);
}

.site-nav[data-smart-nav] .drawer-links,
.site-nav[data-smart-nav] .compact-groups {
  display: grid;
  gap: 10px;
}

.site-nav[data-smart-nav] .drawer-link {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  box-shadow: var(--epc-nav-shadow-soft);
  transition: border-color .16s ease, background .16s ease;
}

.site-nav[data-smart-nav] .drawer-link.is-active,
.site-nav[data-smart-nav] .drawer-link.is-context {
  border-color: rgba(11, 95, 255, 0.28);
  background: linear-gradient(135deg, rgba(11, 95, 255, 0.12), rgba(15, 118, 110, 0.12));
}

.site-nav[data-smart-nav] .drawer-link.is-context:not(.is-active) {
  box-shadow: inset 0 0 0 1px rgba(11, 95, 255, 0.14);
}

/* =============================================================================
   🧭 GRAND MENU
   ============================================================================= */

.site-nav[data-smart-nav] .nav-group-tabs,
.site-nav[data-smart-nav] .nav-context-links,
.site-nav[data-smart-nav] .nav-stepper {
  display: flex;
  gap: 10px;
}

.site-nav[data-smart-nav] .nav-group-tabs {
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.site-nav[data-smart-nav] .group-tab {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  padding: 0.6rem 0.92rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--epc-nav-chip);
  color: var(--ink);
  box-shadow: var(--epc-nav-shadow-soft);
  transition: border-color .16s ease, background .16s ease, transform .16s ease;
}

.site-nav[data-smart-nav] .group-tab-label {
  font-weight: 700;
}

.site-nav[data-smart-nav] .group-tab.is-active,
.site-nav[data-smart-nav] .group-tab:hover,
.site-nav[data-smart-nav] .group-tab:focus-visible {
  border-color: rgba(11, 95, 255, 0.28);
  background: linear-gradient(135deg, rgba(11, 95, 255, 0.14), rgba(15, 118, 110, 0.14));
}

.site-nav[data-smart-nav] .nav-context {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: end;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
}

.site-nav[data-smart-nav] .nav-context-main {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.site-nav[data-smart-nav] .nav-context-head {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
}

.site-nav[data-smart-nav] .nav-context-current {
  color: var(--muted);
  font-size: 0.92rem;
}

.site-nav[data-smart-nav] .nav-context-links {
  flex-wrap: wrap;
}

.site-nav[data-smart-nav] .context-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0.55rem 0.84rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: rgba(243, 247, 251, 0.92);
  color: var(--ink);
  min-width: max-content;
  transition: border-color .16s ease, background .16s ease;
}

.site-nav[data-smart-nav] .context-link.is-active,
.site-nav[data-smart-nav] .context-link.is-context,
.site-nav[data-smart-nav] .context-link:hover,
.site-nav[data-smart-nav] .context-link:focus-visible {
  border-color: rgba(11, 95, 255, 0.24);
  background: linear-gradient(135deg, rgba(11, 95, 255, 0.14), rgba(15, 118, 110, 0.14));
}

.site-nav[data-smart-nav] .context-link.is-active {
  font-weight: 700;
}

.site-nav[data-smart-nav] .nav-stepper {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav[data-smart-nav] .nav-step-link {
  display: grid;
  gap: 2px;
  min-width: 170px;
  padding: 0.72rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--epc-nav-panel);
  color: var(--ink);
  box-shadow: var(--epc-nav-shadow-soft);
}

.site-nav[data-smart-nav] .nav-step-link.is-disabled {
  opacity: 0.48;
  pointer-events: none;
}

/* =============================================================================
   🖼️ MOSAÏQUE VISUELLE ACCUEIL
   ============================================================================= */

.epc-visual-mosaic {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
  margin-top: 6px;
}

.epc-visual-tile {
  position: relative;
  display: grid;
  min-height: 220px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(11, 18, 32, 0.92), rgba(15, 23, 42, 0.96));
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
  isolation: isolate;
}

.epc-visual-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 17, 29, 0.08) 8%, rgba(8, 17, 29, 0.34) 46%, rgba(8, 17, 29, 0.90) 100%);
  z-index: 1;
}

.epc-visual-tile--hero {
  grid-column: span 7;
  grid-row: span 2;
  min-height: 520px;
}

.epc-visual-tile--side {
  grid-column: span 5;
  min-height: 252px;
}

.epc-visual-tile--standard {
  grid-column: span 4;
}

.epc-visual-tile--wide {
  grid-column: span 6;
  min-height: 232px;
}

.epc-visual-media {
  position: absolute;
  inset: 0;
}

.epc-visual-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(1.04) contrast(1.02);
}

.epc-visual-copy {
  position: relative;
  z-index: 2;
  display: grid;
  align-content: end;
  gap: 10px;
  min-height: 100%;
  padding: 20px;
  background: linear-gradient(180deg, rgba(8, 17, 29, 0) 0%, rgba(8, 17, 29, 0.14) 28%, rgba(8, 17, 29, 0.66) 64%, rgba(8, 17, 29, 0.92) 100%);
}

.epc-visual-tile--hero .epc-visual-copy {
  gap: 12px;
  padding: 26px;
}

.epc-visual-kicker {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.34rem 0.66rem;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  background: rgba(8, 17, 29, 0.48);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.epc-visual-copy h3 {
  margin: 0;
  color: #fff;
  font-size: 1.14rem;
  line-height: 1.2;
  text-shadow: 0 2px 10px rgba(8, 17, 29, 0.55);
}

.epc-visual-copy p {
  margin: 0;
  max-width: 44ch;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.58;
  text-shadow: 0 1px 8px rgba(8, 17, 29, 0.52);
}

.epc-visual-tile--hero .epc-visual-copy h3 {
  font-size: 1.56rem;
}

.epc-visual-tile--hero .epc-visual-copy p {
  max-width: 56ch;
  font-size: 1rem;
}

/* -----------------------------------------------------------------------------
   🎯 CADRAGE HOME — "REPÈRES VISUELS EPC"
   ----------------------------------------------------------------------------- */

.site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic {
  grid-auto-flow: dense;
  align-items: stretch;
}

.site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile {
  min-height: 228px;
}

.site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile--hero {
  min-height: 508px;
}

.site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-media img {
  transform: scale(1.04);
  transform-origin: center;
}

.site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile:nth-child(1) .epc-visual-media img {
  object-position: 58% 22% !important;
  transform: scale(1.05);
}

.site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile:nth-child(2) .epc-visual-media img {
  object-position: 50% 24% !important;
}

.site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile:nth-child(3) .epc-visual-media img {
  object-position: 56% 44% !important;
}

.site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile:nth-child(4) .epc-visual-media img {
  object-position: 50% 62% !important;
}

.site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile:nth-child(5) .epc-visual-media img {
  object-position: 53% 40% !important;
}

.site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile:nth-child(6) .epc-visual-media img {
  object-position: 50% 28% !important;
}

/* =============================================================================
   📱 RESPONSIVE
   ============================================================================= */

@media (max-width: 1200px) {
  .epc-visual-tile--hero {
    grid-column: span 12;
    grid-row: auto;
    min-height: 400px;
  }

  .epc-visual-tile--side,
  .epc-visual-tile--wide,
  .epc-visual-tile--standard {
    grid-column: span 6;
  }

  .site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile--hero {
    min-height: 420px;
  }
}

@media (max-width: 920px) {
  .site-nav[data-smart-nav] {
    margin: 24px 0 40px;
  }

  .site-nav[data-smart-nav] .portal-nav-top,
  .site-nav[data-smart-nav] .nav-context-head {
    align-items: flex-start;
  }

  .site-nav[data-smart-nav] .brand {
    min-width: 0;
  }

  .site-nav[data-smart-nav] .portal-nav-meta,
  .site-nav[data-smart-nav] .nav-stepper {
    width: 100%;
  }

  .site-nav[data-smart-nav] .nav-drawer {
    width: 100%;
    margin-left: 0;
  }

  .site-nav[data-smart-nav] .nav-drawer > summary {
    width: 100%;
  }

  .site-nav[data-smart-nav] .nav-drawer-panel {
    position: static;
    width: 100%;
    margin-top: 10px;
  }

  .site-nav[data-smart-nav] .drawer-grid {
    grid-template-columns: 1fr;
  }

  .site-nav[data-smart-nav] .nav-context {
    grid-template-columns: 1fr;
  }

  .site-nav[data-smart-nav] .nav-context-links {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .site-nav[data-smart-nav] .nav-step-link {
    min-width: 0;
    flex: 1 1 220px;
  }

  .epc-visual-mosaic {
    grid-template-columns: 1fr;
  }

  .epc-visual-tile--hero,
  .epc-visual-tile--side,
  .epc-visual-tile--wide,
  .epc-visual-tile--standard {
    grid-column: auto;
    grid-row: auto;
    min-height: 240px;
  }

  .epc-visual-tile--hero {
    min-height: 300px;
  }

  .epc-visual-copy,
  .epc-visual-tile--hero .epc-visual-copy {
    padding: 18px;
  }

  .epc-visual-tile--hero .epc-visual-copy h3 {
    font-size: 1.3rem;
  }

  .site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-media img {
    transform: none;
  }

  .site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile:nth-child(1) .epc-visual-media img {
    object-position: 60% 18% !important;
  }

  .site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile:nth-child(2) .epc-visual-media img,
  .site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile:nth-child(3) .epc-visual-media img,
  .site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile:nth-child(4) .epc-visual-media img,
  .site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile:nth-child(5) .epc-visual-media img,
  .site-nav[data-current-file="index.html"] ~ section .epc-visual-mosaic .epc-visual-tile:nth-child(6) .epc-visual-media img {
    object-position: center center !important;
  }
}