.site-header {
  position: fixed;
  top: var(--space-5);
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  width: min(920px, calc(100% - 32px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 8px 10px 8px 18px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  box-shadow: 0 8px 30px rgba(17, 17, 17, 0.06);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: box-shadow 0.3s var(--ease-premium), transform 0.6s var(--ease-premium), opacity 0.6s var(--ease-premium);
}

.site-header.is-scrolled {
  box-shadow: 0 12px 34px rgba(17, 17, 17, 0.1);
}

.site-header.is-entering {
  opacity: 0;
  transform: translateX(-50%) translateY(-16px);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

/* The name links back to the home page (both languages, mobile and desktop). */
.header-home {
  display: inline-flex;
  align-items: center;
  min-height: 44px;  /* comfortable touch target */
  color: var(--color-ink);
  text-decoration: none;
  transition: color 0.2s var(--ease-premium);
}

.header-home:hover {
  color: var(--color-accent);
}

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

.header-brand .availability-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-muted);
  padding-left: var(--space-3);
  border-left: 1px solid var(--color-border);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  font-size: 13px;
  font-weight: 500;
}

/* Keep multi-word labels ("À propos", "Contactez-moi") on one line. */
.header-nav a,
.header-cv,
.header-cta {
  white-space: nowrap;
}

.header-nav a {
  color: var(--color-muted);
  transition: color 0.2s var(--ease-premium);
}

.header-nav a:hover {
  color: var(--color-ink);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.header-cv {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  color: var(--color-ink);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  transition: border-color 0.2s var(--ease-premium), transform 0.25s var(--ease-premium);
}

.header-cv:hover {
  border-color: var(--color-ink);
  transform: translateY(-1px);
}

@media (max-width: 640px) {
  .header-cv {
    display: none;
  }
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  background: var(--color-ink);
  color: var(--color-bg);
  font-size: 13px;
  font-weight: 600;
  transition: transform 0.25s var(--ease-premium);
}

.header-cta:hover {
  transform: translateY(-1px);
}

.header-lang-form {
  display: contents;
}

.header-plus {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border: none;
  flex-shrink: 0;
  transition: transform 0.2s var(--ease-premium);
}

.header-plus:hover {
  transform: translateY(-1px);
}

/* ---- Mobile menu toggle: 44px touch target, hamburger that morphs into × ---- */

.header-menu-toggle {
  position: relative;
  z-index: 101;
  display: none;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid var(--color-ink);
  background: var(--color-ink);
  color: #fff;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.25s var(--ease-premium), transform 0.2s var(--ease-premium);
}

.header-menu-toggle:active {
  transform: scale(0.94);
}

.header-menu-toggle:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.menu-icon {
  position: relative;
  width: 18px;
  height: 12px;
}

.menu-icon span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.35s var(--ease-premium), opacity 0.2s var(--ease-premium), top 0.35s var(--ease-premium);
}

.menu-icon span:nth-child(1) { top: 0; }
.menu-icon span:nth-child(2) { top: 5px; }
.menu-icon span:nth-child(3) { top: 10px; }

.menu-open .menu-icon span:nth-child(1) { top: 5px; transform: rotate(45deg); }
.menu-open .menu-icon span:nth-child(2) { opacity: 0; transform: scaleX(0.2); }
.menu-open .menu-icon span:nth-child(3) { top: 5px; transform: rotate(-45deg); }

/* ---- Full-screen mobile menu panel ---- */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;  /* under the header pill, so the × stays visible on top */
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-6);
  padding: calc(92px + env(safe-area-inset-top, 0px)) var(--space-6) calc(var(--space-6) + env(safe-area-inset-bottom, 0px));
  background: var(--color-bg);
  overflow-y: auto;
  overscroll-behavior: contain;
  opacity: 0;
  visibility: hidden;  /* also removes the links from keyboard focus while closed */
  transform: translateY(-12px);
  transition: opacity 0.3s var(--ease-premium), transform 0.35s var(--ease-premium), visibility 0s linear 0.35s;
}

.menu-open .mobile-menu {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity 0.3s var(--ease-premium), transform 0.35s var(--ease-premium), visibility 0s;
}

/* No page scrolling behind the open menu. */
.menu-open,
.menu-open body {
  overflow: hidden;
}

.mobile-menu-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-menu-nav li {
  border-bottom: 1px solid var(--color-border);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s var(--ease-premium), transform 0.35s var(--ease-premium);
}

.menu-open .mobile-menu-nav li {
  opacity: 1;
  transform: none;
}

/* Links appear one after another. */
.menu-open .mobile-menu-nav li:nth-child(1) { transition-delay: 0.05s; }
.menu-open .mobile-menu-nav li:nth-child(2) { transition-delay: 0.08s; }
.menu-open .mobile-menu-nav li:nth-child(3) { transition-delay: 0.11s; }
.menu-open .mobile-menu-nav li:nth-child(4) { transition-delay: 0.14s; }
.menu-open .mobile-menu-nav li:nth-child(5) { transition-delay: 0.17s; }
.menu-open .mobile-menu-nav li:nth-child(6) { transition-delay: 0.20s; }
.menu-open .mobile-menu-nav li:nth-child(7) { transition-delay: 0.23s; }

.mobile-menu-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: var(--space-2) 0;
  font-size: clamp(1.2rem, 5.4vw, 1.6rem);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
  text-decoration: none;
}

.mobile-menu-nav a::after {
  content: "→";
  font-size: 0.8em;
  color: var(--color-accent);
  transform: translateX(-4px);
  transition: transform 0.25s var(--ease-premium);
}

.mobile-menu-nav a:active::after,
.mobile-menu-nav a:focus-visible::after {
  transform: none;
}

.mobile-menu-nav a[aria-current="page"] {
  color: var(--color-accent);
}

.mobile-menu-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.mobile-menu-actions .btn {
  justify-content: center;
  min-height: 48px;
}

.mobile-menu-actions .mobile-lang-btn {
  align-self: center;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.header-plus,
.mobile-lang-btn {
  text-decoration: none;
}

.mobile-lang-btn {
  display: inline-block;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
}

@media (max-width: 1080px) {
  .header-nav {
    display: none;
  }

  .header-menu-toggle {
    display: flex;
  }
}

@media (max-width: 480px) {
  .header-brand .availability-text {
    display: none;
  }

  .header-brand .availability-pill {
    padding-left: var(--space-2);
    gap: 0;
  }

  .header-cta {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header,
  .mobile-menu,
  .mobile-menu-nav li,
  .menu-icon span {
    transition: none !important;
  }

  .site-header.is-entering {
    opacity: 1;
    transform: translateX(-50%);
  }
}