/* =====================================================
   MAXIME DUFLOT — Composant Navigation
   Transparent over hero · Paper-blurred on scroll
   ===================================================== */

/* ── Base (transparent over hero) ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 22px var(--gutter);
  background: transparent;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: var(--paper);
  transition:
    background 0.6s ease,
    backdrop-filter 0.6s ease,
    -webkit-backdrop-filter 0.6s ease,
    padding 0.5s ease,
    color 0.5s ease;
}

/* Gradient veil for legibility over photos */
.nav::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 180%;
  background: linear-gradient(to bottom, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.12) 50%, transparent 100%);
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.5s ease;
  z-index: -1;
}

/* Hairline bottom */
.nav::after {
  content: '';
  position: absolute;
  left: var(--gutter); right: var(--gutter); bottom: 0;
  height: 1px;
  background: rgba(255,255,255,0.15);
  transition: background 0.5s ease;
}

/* ── Scrolled state ── */
.nav.is-scrolled {
  background: rgba(239,233,221,0.82);
  backdrop-filter: blur(16px) saturate(1.05);
  -webkit-backdrop-filter: blur(16px) saturate(1.05);
  padding: 16px var(--gutter);
  color: var(--ink);
}
.nav.is-scrolled::before { opacity: 0; }
.nav.is-scrolled::after  { background: rgba(28,24,20,0.1); }

/* ── Logo (image claire / sombre selon état) ── */
.nav-logo {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  flex-shrink: 0;
  width: 194px;
  height: 49px;
  background-image: url('/assets/branding/logos/logo-compact-light.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: left center;
  text-decoration: none;
  text-indent: -9999px;
  overflow: hidden;
  opacity: 1;
  transition: opacity 0.25s ease;
}
.nav-logo:hover { opacity: 0.75; }
.nav.is-scrolled .nav-logo {
  background-image: url('/assets/branding/logos/logo-compact-dark.png');
}

.nav-logo-mark,
.nav-logo > span { display: none; }

/* ── Links ── */
.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 13px;
  font-weight: 300;
  color: rgba(255,255,255,0.78);
  position: relative;
  padding: 4px 0;
  white-space: nowrap;
  transition: color 0.3s, opacity 0.3s;
}
.nav-links a:hover,
.nav-links a.active { color: rgba(255,255,255,1); }

.nav.is-scrolled .nav-links a               { color: var(--ink-soft); }
.nav.is-scrolled .nav-links a:hover,
.nav.is-scrolled .nav-links a.active        { color: var(--ink); }

.nav-links a.active::before {
  content: '';
  position: absolute;
  left: -10px; top: 50%;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--rust);
  transform: translateY(-50%);
}

/* ── CTA (pill outline) ── */
.nav-cta {
  justify-self: end;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--paper);
  text-decoration: none;
  padding: 8px 20px 8px 22px;
  border: 1px solid rgba(255,255,255,0.38);
  border-radius: 100px;
  transition: background 0.4s ease, border-color 0.4s ease, color 0.4s ease, gap 0.4s;
}
.nav-cta::after {
  content: '→';
  display: inline-block;
  transition: transform 0.4s cubic-bezier(.8,0,.2,1);
}
.nav-cta:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
  gap: 16px;
}
.nav-cta:hover::after { transform: translateX(3px); }

.nav.is-scrolled .nav-cta {
  color: var(--ink);
  border-color: rgba(28,24,20,0.25);
}
.nav.is-scrolled .nav-cta:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* ── Dropdown Prestations ── */
.nav-dropdown { position: relative; }

.nav-dropdown-trigger {
  background: none;
  border: none;
  margin: 0;
  padding: 4px 0;
  font-family: inherit;
  font-size: 13px;
  font-weight: 300;
  line-height: inherit;
  color: rgba(255,255,255,0.78);
  cursor: pointer;
  position: relative;
  white-space: nowrap;
  transition: color 0.3s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-dropdown-trigger:hover,
.nav-dropdown-trigger.active { color: rgba(255,255,255,1); }

.nav.is-scrolled .nav-dropdown-trigger             { color: var(--ink-soft); }
.nav.is-scrolled .nav-dropdown-trigger:hover,
.nav.is-scrolled .nav-dropdown-trigger.active      { color: var(--ink); }

.nav-dropdown-trigger.active::before {
  content: '';
  position: absolute;
  left: -10px; top: 50%;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--rust);
  transform: translateY(-50%);
}

/* Chevron */
.nav-dropdown-chevron {
  display: inline-block;
  width: 6px; height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.22s ease;
  flex-shrink: 0;
  margin-top: -2px;
}
.nav-dropdown.is-open .nav-dropdown-chevron,
.nav-dropdown:hover .nav-dropdown-chevron {
  transform: rotate(-135deg);
  margin-top: 3px;
}

/* Panel */
.nav-dropdown-panel {
  position: absolute;
  top: calc(100% + 20px);
  left: 50%;
  width: 210px;
  background: var(--paper);
  border-top: 2px solid var(--rust);
  box-shadow: 0 16px 48px rgba(28,24,20,0.1), 0 2px 8px rgba(28,24,20,0.06);
  z-index: 2;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-6px);
  transition: opacity 0.28s ease, transform 0.28s ease, visibility 0s 0.28s;
}
.nav-dropdown-panel::before {
  content: '';
  position: absolute;
  bottom: 100%;
  left: -30px; right: -30px;
  height: 26px;
}
.nav-dropdown:hover .nav-dropdown-panel,
.nav-dropdown.is-open .nav-dropdown-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  transition: opacity 0.28s ease, transform 0.28s ease, visibility 0s;
}

/* Panel items */
.nav-dropdown-panel a {
  display: block;
  padding: 15px 22px;
  border-bottom: 1px solid rgba(28,24,20,0.06);
  position: relative;
  overflow: hidden;
  transition: background 0.2s;
}
.nav-dropdown-panel a:last-child { border-bottom: none; }
.nav-dropdown-panel a::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--rust);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.22s ease;
}
.nav-dropdown-panel a:hover::before { transform: scaleY(1); }

.nav-dropdown-label {
  display: block;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 300;
  color: var(--ink);
  transition: color 0.2s;
}
.nav-dropdown-sub {
  display: block;
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin-top: 2px;
  transition: color 0.2s;
}
.nav-dropdown-panel a:hover .nav-dropdown-label { color: var(--rust); }
.nav-dropdown-panel a:hover .nav-dropdown-sub   { color: var(--ink); }

/* Focus clavier */
.nav-dropdown-trigger:focus-visible { outline: 2px solid var(--rust); outline-offset: 4px; }
.nav-dropdown-panel a:focus-visible  { outline: 2px solid var(--rust); outline-offset: -2px; }

/* ── Variante sombre (nav-dark) ── */
.nav-dark {
  background: rgba(12,10,8,0.92);
}
.nav-dark .nav-links a              { color: rgba(246,241,230,0.5); }
.nav-dark .nav-links a:hover,
.nav-dark .nav-links a.active       { color: rgba(246,241,230,0.9); }
.nav-dark .nav-logo                 { background-image: url('/assets/branding/logos/logo-compact-light.png'); }
.nav-dark .nav-cta                  { color: rgba(246,241,230,0.9); border-color: rgba(246,241,230,0.3); }
.nav-dark::after                    { background: rgba(246,241,230,0.08); }
.nav-dark .nav-dropdown-trigger     { color: rgba(246,241,230,0.5); }
.nav-dark .nav-dropdown-trigger:hover,
.nav-dark .nav-dropdown-trigger.active { color: rgba(246,241,230,0.9); }
.nav-dark .nav-dropdown-panel       { background: #181410; box-shadow: 0 16px 48px rgba(0,0,0,0.35); }
.nav-dark .nav-dropdown-panel a     { border-bottom-color: rgba(246,241,230,0.07); }
.nav-dark .nav-dropdown-label       { color: rgba(246,241,230,0.85); }
.nav-dark .nav-dropdown-sub         { color: rgba(246,241,230,0.4); }
.nav-dark .nav-dropdown-panel a:hover .nav-dropdown-label { color: var(--rust); }
.nav-dark .nav-dropdown-panel a:hover .nav-dropdown-sub   { color: rgba(246,241,230,0.7); }

/* ── Dropdown mobile ── */
@media (max-width: 767px) {
  .nav-dropdown-panel {
    position: static;
    width: 100%;
    transform: none;
    box-shadow: none;
    border-top: none;
    border-left: 2px solid var(--rust);
    opacity: 1;
    visibility: visible;
    display: none;
    margin-top: 8px;
  }
  .nav-dropdown.is-open .nav-dropdown-panel {
    display: block;
    transform: none;
  }
  .nav-dropdown-panel a { padding: 12px 18px; }
}

/* ══════════════════════════════════════════════════════════
   BURGER
   ══════════════════════════════════════════════════════════ */
.nav-burger {
  display: none;
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 50%;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  cursor: pointer;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-left: auto;
  z-index: 51;
  position: relative;
  flex-shrink: 0;
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s cubic-bezier(.16,1,.3,1);
}
.nav-burger:hover { transform: translateY(-1px); }

.nav-burger-bar {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--paper);
  border-radius: 1px;
  transform-origin: center;
  transition: transform 0.42s cubic-bezier(.16,1,.3,1), width 0.32s ease, background 0.25s ease;
}
.nav-burger-bar:nth-child(2) { width: 16px; }
.nav-burger:hover .nav-burger-bar:nth-child(2),
.nav-burger.is-open .nav-burger-bar { width: 22px; }
.nav-burger.is-open .nav-burger-bar:nth-child(1) { transform: translateY(3.75px) rotate(45deg); }
.nav-burger.is-open .nav-burger-bar:nth-child(2) { transform: translateY(-3.75px) rotate(-45deg); }

/* Burger in scrolled state */
.nav.is-scrolled .nav-burger {
  background: rgba(246,241,230,0.42);
  border-color: rgba(28,24,20,0.12);
}
.nav.is-scrolled .nav-burger-bar { background: var(--ink); }

/* Dark variant burger */
.nav-dark .nav-burger { background: rgba(12,10,8,0.38); border-color: rgba(246,241,230,0.14); }
.nav-dark .nav-burger-bar { background: rgba(246,241,230,0.85); }

/* ══════════════════════════════════════════════════════════
   OVERLAY MENU MOBILE
   ══════════════════════════════════════════════════════════ */
.nav-mobile-overlay {
  position: fixed;
  inset: 0;
  z-index: 48;
  background: rgba(239,233,221,0.97);
  backdrop-filter: blur(28px) saturate(1.05);
  -webkit-backdrop-filter: blur(28px) saturate(1.05);
  display: flex;
  align-items: stretch;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.42s cubic-bezier(.16,1,.3,1);
  overflow-y: auto;
}
.nav-mobile-overlay[hidden] { display: none !important; }
.nav-mobile-overlay.is-open { display: flex; pointer-events: all; opacity: 1; }

.nav-mobile-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(38px,6vh,60px);
  padding: clamp(118px,18vh,164px) clamp(26px,6vw,44px) clamp(54px,8vh,78px);
  width: 100%;
  min-height: 100dvh;
  justify-content: center;
  transform: translateY(12px);
  transition: transform 0.58s cubic-bezier(.16,1,.3,1);
}
.nav-mobile-overlay.is-open .nav-mobile-inner { transform: none; }

.nav-mobile-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(4px,1vh,10px);
  width: 100%;
}
.nav-mobile-links > li {
  width: 100%;
  text-align: center;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s cubic-bezier(.16,1,.3,1), transform 0.5s cubic-bezier(.16,1,.3,1);
}
.nav-mobile-overlay.is-open .nav-mobile-links > li { opacity: 1; transform: none; }
.nav-mobile-overlay.is-open .nav-mobile-links > li:nth-child(1) { transition-delay: 0.10s; }
.nav-mobile-overlay.is-open .nav-mobile-links > li:nth-child(2) { transition-delay: 0.16s; }
.nav-mobile-overlay.is-open .nav-mobile-links > li:nth-child(3) { transition-delay: 0.22s; }

.nav-mobile-link {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(38px,9.5vw,60px);
  line-height: 1.05;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 10px 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: center;
  transition: color 0.28s ease;
  position: relative;
}
.nav-mobile-link::after {
  content: '';
  position: absolute;
  left: 50%; bottom: 4px;
  width: 0; height: 1px;
  background: var(--rust);
  transition: width 0.42s cubic-bezier(.16,1,.3,1), left 0.42s cubic-bezier(.16,1,.3,1);
}
.nav-mobile-link:hover { color: var(--rust); }
.nav-mobile-link:hover::after { width: 64%; left: 18%; }
.nav-mobile-link.active { font-style: italic; color: var(--rust); }
.nav-mobile-link.active::after { width: 48%; left: 26%; }

.nav-mobile-sub-chevron {
  display: inline-block;
  width: 9px; height: 9px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.32s cubic-bezier(.16,1,.3,1), margin-top 0.32s cubic-bezier(.16,1,.3,1);
  flex-shrink: 0;
  margin-top: -4px;
  opacity: 0.7;
}
.nav-mobile-sub-btn.is-open .nav-mobile-sub-chevron {
  transform: rotate(-135deg);
  margin-top: 4px;
  opacity: 1;
}

.nav-mobile-sub {
  list-style: none;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.5s cubic-bezier(.16,1,.3,1), opacity 0.32s ease,
              padding 0.4s ease, margin 0.4s ease, background 0.3s ease, border-color 0.3s ease;
  width: 100%;
  max-width: 420px;
  margin-inline: auto;
  text-align: center;
  padding: 0 14px;
  background: transparent;
  border: 1px solid transparent;
}
.nav-mobile-sub.is-open {
  max-height: 360px;
  opacity: 1;
  padding: 10px 18px 8px;
  margin-top: 10px;
  background: rgba(246,241,230,0.58);
  border-color: rgba(28,24,20,0.08);
}
.nav-mobile-sub li { border-bottom: 1px solid rgba(28,24,20,0.08); }
.nav-mobile-sub li:last-child { border-bottom: none; }
.nav-mobile-sub a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 15px 0;
  transition: color 0.22s, transform 0.32s cubic-bezier(.16,1,.3,1);
}
.nav-mobile-sub a:hover { transform: translateY(-1px); }
.nav-mobile-sub em {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(22px,5.4vw,30px);
  font-weight: 300;
  color: var(--ink);
  transition: color 0.22s;
}
.nav-mobile-sub span {
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.nav-mobile-sub a:hover em { color: var(--rust); }

.nav-mobile-cta {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 16.5px;
  font-weight: 300;
  padding: 16px 38px;
  background: var(--ink);
  color: var(--paper);
  border-radius: 100px;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-top: clamp(8px,2vh,16px);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s cubic-bezier(.16,1,.3,1) 0.32s,
              transform 0.5s cubic-bezier(.16,1,.3,1) 0.32s,
              gap 0.4s ease;
}
.nav-mobile-overlay.is-open .nav-mobile-cta { opacity: 1; transform: none; }
.nav-mobile-cta:hover { gap: 20px; }

/* Dark variant mobile */
.nav-dark .nav-mobile-overlay { background: rgba(18,14,10,0.97); }
.nav-dark .nav-mobile-link    { color: rgba(246,241,230,0.9); }
.nav-dark .nav-mobile-link:hover { color: var(--rust); }
.nav-dark .nav-mobile-sub em  { color: rgba(246,241,230,0.9); }
.nav-dark .nav-mobile-sub li  { border-bottom-color: rgba(246,241,230,0.06); }
.nav-dark .nav-mobile-cta     { background: var(--rust); color: #fff; }

/* ── Affichage burger ≤ 767px ── */
@media (max-width: 767px) {
  .nav-burger { display: flex; }
  .nav {
    grid-template-columns: 1fr auto;
    padding: 18px var(--gutter);
    /* iOS Safari : supprimer la transition backdrop-filter pour éviter
       le bug de rendu qui casse position:fixed */
    transition: background 0.4s ease, padding 0.4s ease, color 0.4s ease;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .nav.is-scrolled {
    backdrop-filter: blur(16px) saturate(1.05);
    -webkit-backdrop-filter: blur(16px) saturate(1.05);
  }
  .nav-links, .nav-cta { display: none; }
  .nav-dropdown { display: none; }
  .nav::after { left: var(--gutter); right: var(--gutter); }
  .nav-logo { width: 160px; height: 40px; }
}

@media (max-width: 479px) {
  .nav-logo { width: 138px; height: 36px; }
  .nav-burger { width: 42px; height: 42px; }
  .nav-mobile-inner {
    align-items: stretch;
    gap: clamp(30px,5.5vh,44px);
    padding: clamp(108px,16vh,136px) var(--gutter) clamp(42px,8vh,64px);
  }
  .nav-mobile-link { font-size: clamp(36px,11vw,48px); padding-block: 8px; }
  .nav-mobile-sub  { max-width: none; }
  .nav-mobile-sub em { font-size: clamp(21px,6vw,27px); }
  .nav-mobile-sub span { font-size: 10px; letter-spacing: 0.08em; }
  .nav-mobile-cta { width: 100%; justify-content: center; padding-inline: 24px; }
}