/* ============================================================
   MIELANCE MÉDIA — header.css
   Styles du header et de la navigation
   ============================================================ */

/* ============================================================
   HEADER PRINCIPAL
   ============================================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-blanc);
    border-bottom: 1px solid var(--color-beige-moyen);
    box-shadow: 0 2px 12px rgba(44, 31, 14, 0.08);
    transition: box-shadow var(--transition-base);
}

.site-header.is-scrolled {
    box-shadow: 0 4px 24px rgba(44, 31, 14, 0.14);
}

.header__inner {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    height: 72px;
}

/* ============================================================
   LOGO / MARQUE
   ============================================================ */
.header__brand {
    flex-shrink: 0;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--color-brun);
    transition: opacity var(--transition-fast);
}

.header__logo:hover {
    opacity: 0.85;
    color: var(--color-brun);
}

.header__logo-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.header__logo-text {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: 0.04em;
    white-space: nowrap;
    color: var(--color-brun);
    line-height: 1;
}

.header__logo-text strong {
    font-weight: 800;
    color: var(--color-or);
    letter-spacing: 0.06em;
}

/* ============================================================
   NAVIGATION DESKTOP
   ============================================================ */
.header__nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 0;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav__item {
    position: relative;
}

.nav__link {
    display: block;
    padding: 0.5rem 0.875rem;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    color: var(--color-brun-moyen);
    text-decoration: none;
    white-space: nowrap;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0.875rem;
    right: 0.875rem;
    height: 2px;
    background: var(--color-or);
    border-radius: var(--radius-full);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--transition-base);
}

.nav__link:hover {
    color: var(--color-or);
    background: transparent;
}

.nav__link:hover::after {
    transform: scaleX(1);
}

.nav__item.is-active .nav__link {
    color: var(--color-or);
}

.nav__item.is-active .nav__link::after {
    transform: scaleX(1);
}

/* ============================================================
   ACTIONS HEADER (droite)
   ============================================================ */
.header__actions {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.header__search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    color: var(--color-brun-moyen);
    background: transparent;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.header__search-toggle:hover {
    color: var(--color-or);
    background: var(--color-beige-clair);
    border-color: var(--color-beige-moyen);
}

/* ============================================================
   BURGER MENU (mobile)
   ============================================================ */
.header__burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 2px solid var(--color-border);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.header__burger:hover {
    border-color: var(--color-or);
}

.burger__line {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-brun);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    transform-origin: center;
}

/* Animation burger → X */
.header__burger[aria-expanded="true"] .burger__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.header__burger[aria-expanded="true"] .burger__line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.header__burger[aria-expanded="true"] .burger__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   OVERLAY RECHERCHE
   ============================================================ */
.search-overlay {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-blanc);
    border-top: 2px solid var(--color-or);
    box-shadow: var(--shadow-lg);
    padding: var(--space-lg) 0;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
    z-index: 999;
}

.search-overlay.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
}

.search-overlay__inner {
    display: flex;
    align-items: center;
}

.search-overlay__form {
    display: flex;
    align-items: center;
    width: 100%;
    gap: var(--space-sm);
    background: var(--color-beige-clair);
    border: 2px solid var(--color-beige-moyen);
    border-radius: var(--radius-full);
    padding: 0.5rem 1rem;
    transition: border-color var(--transition-fast);
}

.search-overlay__form:focus-within {
    border-color: var(--color-or);
}

.search-overlay__input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: var(--text-md);
    color: var(--color-brun);
    outline: none;
    font-family: var(--font-body);
}

.search-overlay__input::placeholder {
    color: var(--color-gris-chaud);
}

.search-overlay__submit,
.search-overlay__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    border: none;
    background: transparent;
    color: var(--color-gris-chaud);
    cursor: pointer;
    transition: color var(--transition-fast), background var(--transition-fast);
    flex-shrink: 0;
}

.search-overlay__submit:hover,
.search-overlay__close:hover {
    color: var(--color-or);
    background: var(--color-blanc);
}

/* ============================================================
   MENU MOBILE
   ============================================================ */
.mobile-nav {
    position: fixed;
    top: 72px;
    right: 0;
    width: min(320px, 85vw);
    height: calc(100vh - 72px);
    background: var(--color-blanc);
    border-left: 3px solid var(--color-or);
    box-shadow: -4px 0 24px rgba(44, 31, 14, 0.15);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 998;
    overflow-y: auto;
    padding: var(--space-xl) 0;
}

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

.mobile-nav__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav__item {
    border-bottom: 1px solid var(--color-gris-leger);
}

.mobile-nav__link {
    display: block;
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-ui);
    font-size: var(--text-md);
    font-weight: 600;
    color: var(--color-brun);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
}

.mobile-nav__link::before {
    content: '🍯';
    position: absolute;
    left: var(--space-xl);
    opacity: 0;
    transform: translateX(-8px);
    transition: all var(--transition-fast);
    font-size: 0.9em;
}

.mobile-nav__link:hover {
    color: var(--color-or);
    padding-left: calc(var(--space-xl) + 1.5rem);
    background: var(--color-beige-clair);
}

.mobile-nav__link:hover::before {
    opacity: 1;
    transform: translateX(0);
}

/* Overlay de fond (mobile nav) */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(44, 31, 14, 0.5);
    backdrop-filter: blur(2px);
    z-index: 997;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}

.nav-overlay.is-visible {
    opacity: 1;
    pointer-events: all;
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--color-or);
    color: var(--color-blanc);
    padding: var(--space-sm) var(--space-md);
    z-index: 9999;
    font-weight: 700;
    border-radius: 0 0 var(--radius-md) 0;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .nav__link {
        padding: 0.5rem 0.6rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 900px) {
    .header__nav {
        display: none;
    }

    .header__burger {
        display: flex;
    }
}

@media (max-width: 480px) {
    .header__inner {
        height: 64px;
    }

    .header__logo-text {
        font-size: 0.95rem;
    }

    .mobile-nav {
        top: 64px;
        height: calc(100vh - 64px);
    }
}