/* ============================================================
   HEADER
============================================================ */

.header {
  position: fixed;          /* reste en haut de l'écran pendant le défilement */
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: var(--space-6) var(--section-x);
  border-bottom: 1px solid transparent;
  transition: background var(--duration-base) var(--ease-in-out),
              padding var(--duration-base) var(--ease-in-out),
              border-color var(--duration-base) var(--ease-in-out),
              box-shadow var(--duration-base) var(--ease-in-out);
}

/* Dès qu'on défile : fond vert profond semi-opaque, flou, barre plus fine */
.header.is-scrolled {
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  background: rgba(12, 36, 23, 0.9);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--border-on-green-soft);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
}

.header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header__leaf {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  object-fit: contain;
}

.header__wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.header__wordmark-title {
  font-family: var(--font-brand);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-on-green-strong);
  white-space: nowrap;
}

/* « Land » ressort en vert vif, comme sur le logo et les miniatures */
.wordmark-land { color: var(--green-bright); }

.header__wordmark-tagline {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--text-on-green-mid);
}

.header__nav {
  display: flex;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.header__nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-on-green-mid);
  padding-bottom: var(--space-1);
  border-bottom: 2px solid transparent;
  transition: color var(--duration-base) var(--ease-in-out), border-color var(--duration-base) var(--ease-in-out);
}

.header__nav-link:hover { color: var(--text-on-green-strong); }

.header__nav-item.is-active .header__nav-link {
  color: var(--text-on-green-strong);
  border-color: var(--green-bright);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header__subscribe {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: var(--green-bright);
  color: var(--green-deepest);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: background var(--duration-base) var(--ease-in-out),
              box-shadow var(--duration-base) var(--ease-in-out),
              transform var(--duration-fast) var(--ease-in-out);
}

.header__subscribe:hover {
  background: var(--green-pale);
  box-shadow: var(--shadow-glow);
}
.header__subscribe:active { transform: scale(0.97); }

.header__subscribe svg { width: 16px; height: 16px; }

.header__search {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  color: var(--text-on-green-mid);
  transition: color var(--duration-base) var(--ease-in-out), background var(--duration-base) var(--ease-in-out);
}

.header__search:hover {
  color: var(--text-on-green-strong);
  background: var(--border-on-green-soft);
}

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

.header__burger {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.header__burger-line {
  width: 22px;
  height: 2px;
  background: var(--text-on-green-strong);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-in-out), opacity var(--duration-base) var(--ease-in-out);
}

/* ------------------------------------------------------------
   Tablette et mobile (≤ 900px) : nav horizontale → burger
------------------------------------------------------------ */
@media (max-width: 900px) {
  .header__nav { display: none; }
  .header__subscribe span { display: none; }
  .header__subscribe { padding: var(--space-2); width: 44px; height: 44px; justify-content: center; }
  .header__burger { display: flex; }
}

/* ------------------------------------------------------------
   Petit mobile (≤ 420px) : on retire la recherche de la barre,
   elle reste accessible depuis le menu si besoin, pour laisser
   respirer le logo qui devient la priorité visuelle
------------------------------------------------------------ */
@media (max-width: 420px) {
  .header { padding: var(--space-4) var(--section-x); }
  .header.is-scrolled { padding-top: var(--space-2); padding-bottom: var(--space-2); }
  .header__wordmark-title { font-size: 0.875rem; letter-spacing: 0.1em; }
  .header__search { display: none; }
  .header__wordmark-tagline { display: none; }
}

/* ============================================================
   NAVIGATION MOBILE (tiroir plein écran)
============================================================ */

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 100;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-slow) var(--ease-in-out), visibility 0s linear var(--duration-slow);
}

.mobile-nav.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transition: opacity var(--duration-slow) var(--ease-in-out);
}

.mobile-nav__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(12, 36, 23, 0.65);
  backdrop-filter: blur(2px);
}

.mobile-nav__panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(88vw, 380px);
  display: flex;
  flex-direction: column;
  padding: var(--space-5) var(--space-6) var(--space-8);
  background: var(--green-deepest);
  border-left: 1px solid var(--border-on-green-soft);
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-standard);
  overflow-y: auto;
}

.mobile-nav.is-open .mobile-nav__panel {
  transform: translateX(0);
}

.mobile-nav__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}

.mobile-nav__brand {
  font-family: var(--font-brand);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-on-green-strong);
}

.mobile-nav__close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-on-green-strong);
  border-radius: var(--radius-pill);
  transition: background var(--duration-base) var(--ease-in-out);
  flex-shrink: 0;
}

.mobile-nav__close:hover { background: var(--border-on-green-soft); }
.mobile-nav__close svg { width: 20px; height: 20px; }

.mobile-nav__list {
  display: flex;
  flex-direction: column;
}

.mobile-nav__item { border-bottom: 1px solid var(--border-on-green-soft); }
.mobile-nav__item:first-child { border-top: 1px solid var(--border-on-green-soft); }

.mobile-nav__link {
  display: flex;
  align-items: center;
  min-height: 56px;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--text-on-green-mid);
  transition: color var(--duration-base) var(--ease-in-out);
}

.mobile-nav__item.is-active .mobile-nav__link { color: var(--green-bright); }

.mobile-nav__actions {
  margin-top: auto;
  padding-top: var(--space-8);
}

.mobile-nav__subscribe {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 52px;
  width: 100%;
  background: var(--green-bright);
  color: var(--green-deepest);
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: var(--text-sm);
  transition: background var(--duration-base) var(--ease-in-out),
              transform var(--duration-fast) var(--ease-in-out);
}

.mobile-nav__subscribe:hover { background: var(--green-pale); }
.mobile-nav__subscribe:active { transform: scale(0.98); }
.mobile-nav__subscribe svg { width: 18px; height: 18px; flex-shrink: 0; }

@media (max-width: 380px) {
  .mobile-nav__panel { width: 100vw; border-left: none; }
}