/* ============================================
   GNDM – Header & Navigation
   ============================================ */

.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--color-bg-dark);
    border-bottom: 2px solid var(--color-gold);
    height: var(--header-height-mobile);
    transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

@media (min-width: 1024px) {
    .site-header {
        height: var(--header-height);
    }
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-wide);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

/* --- Logo --- */
.header-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    flex-shrink: 0;
}

.header-logo img {
    height: 50px;
    width: auto;
}

@media (min-width: 1024px) {
    .header-logo img {
        height: 60px;
    }
}

.header-logo__text {
    display: none;
    flex-direction: column;
    line-height: var(--lh-tight);
}

@media (min-width: 480px) {
    .header-logo__text {
        display: flex;
    }
}

.header-logo__name {
    font-family: var(--font-heading);
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
    color: var(--color-text-on-dark);
    letter-spacing: var(--ls-wide);
}

@media (min-width: 1024px) {
    .header-logo__name {
        font-size: 1rem;
    }
}

.header-logo__tagline {
    font-size: var(--fs-xs);
    color: var(--color-gold);
    letter-spacing: var(--ls-wide);
    margin-top: 2px;
}

/* --- Navigation desktop --- */
.main-nav {
    display: none;
}

@media (min-width: 1024px) {
    .main-nav {
        display: flex;
        align-items: center;
        gap: var(--space-2xs);
    }
}

.main-nav__link {
    display: flex;
    align-items: center;
    padding: var(--space-xs) var(--space-sm);
    color: var(--color-text-on-dark);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    letter-spacing: var(--ls-wide);
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), background var(--transition-fast);
    white-space: nowrap;
}

.main-nav__link:hover,
.main-nav__link.active {
    color: var(--color-gold);
    background: rgba(197, 153, 42, 0.08);
}

.main-nav__link.active {
    font-weight: var(--fw-semibold);
}

.main-nav__cta {
    margin-left: var(--space-xs);
    padding: var(--space-xs) var(--space-lg);
    background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
    color: var(--color-text-on-gold);
    font-weight: var(--fw-semibold);
    font-size: var(--fs-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    min-height: 42px;
    display: inline-flex;
    align-items: center;
}

.main-nav__cta:hover {
    box-shadow: var(--shadow-gold);
    transform: translateY(-1px);
}

/* --- Bouton hamburger (mobile) --- */
.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: calc(var(--z-overlay) + 1);
}

@media (min-width: 1024px) {
    .nav-toggle {
        display: none;
    }
}

.nav-toggle__bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text-on-dark);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    transform-origin: center;
}

.nav-toggle.open .nav-toggle__bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.open .nav-toggle__bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle.open .nav-toggle__bar:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Navigation mobile (overlay) --- */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 380px;
    height: 100vh;
    height: 100dvh;
    background: var(--color-bg-dark);
    z-index: var(--z-overlay);
    padding: calc(var(--header-height-mobile) + var(--space-xl)) var(--space-xl) var(--space-xl);
    overflow-y: auto;
    transition: right var(--transition-slow);
}

.mobile-nav.open {
    right: 0;
}

.mobile-nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-overlay) - 1);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-slow);
}

.mobile-nav-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.mobile-nav__link {
    display: block;
    padding: var(--space-md) 0;
    color: var(--color-text-on-dark);
    font-size: var(--fs-md);
    font-weight: var(--fw-medium);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: color var(--transition-fast);
}

.mobile-nav__link:hover,
.mobile-nav__link.active {
    color: var(--color-gold);
}

.mobile-nav__cta {
    display: block;
    margin-top: var(--space-xl);
    padding: var(--space-md);
    background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
    color: var(--color-text-on-gold);
    font-weight: var(--fw-bold);
    font-size: var(--fs-md);
    text-align: center;
    border-radius: var(--radius-md);
}

.mobile-nav__contact {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-nav__contact p {
    color: var(--color-text-light);
    font-size: var(--fs-sm);
    margin-bottom: var(--space-xs);
}

.mobile-nav__contact a {
    color: var(--color-gold);
}

/* --- Barre sticky mobile (conversion) --- */
.mobile-sticky-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background: var(--color-bg-dark);
    border-top: 2px solid var(--color-gold);
    padding: var(--space-sm) var(--space-md);
    gap: var(--space-sm);
}

@media (max-width: 767px) {
    .mobile-sticky-bar {
        display: flex;
    }
    body {
        padding-bottom: 72px;
    }
}

.sticky-phone,
.sticky-cta {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    font-weight: var(--fw-semibold);
    font-size: var(--fs-sm);
    min-height: 48px;
}

.sticky-phone {
    background: transparent;
    color: var(--color-text-on-dark);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.sticky-phone svg {
    width: 18px;
    height: 18px;
}

.sticky-cta {
    background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
    color: var(--color-text-on-gold);
}