/* ============================================
   Header Component – Sticky site navigation
   ============================================ */

/* Sticky wrapper – full viewport width, carries background + bottom border */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    width: 100%;
    background-color: rgba(252, 251, 246, 0.97);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 2px solid var(--color-ink);
    box-shadow: var(--shadow-watercolor);
}

/* Inner nav bar – constrained to content width */
.site-header__nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-6);
}

/* ---- Desktop: 3-column grid (Logo | Nav | Actions) ---- */
@media (min-width: 768px) {
    .site-header__nav {
        display: grid;
        grid-template-columns: 1fr auto 1fr;
        gap: var(--space-6);
    }
}

/* ---- Logo ---- */
.site-header__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

/* Logo image – height-based sizing keeps header height predictable */
.site-header__logo-img {
    display: block;
    height: 72px;   /* war 40px – vergrößert für mehr Präsenz auf Mobilgeräten */
    width: auto;
    mix-blend-mode: multiply;
}

@media (min-width: 768px) {
    .site-header__logo-img {
        height: 120px;
    }
}

/* ---- Desktop navigation menu ---- */
.site-header__menu {
    display: none;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
    list-style: none;
    margin: 0;
    padding: 0;
    font-family: var(--font-heading);
    font-size: var(--text-lg);
}

@media (min-width: 768px) {
    .site-header__menu {
        display: flex;
    }
}

.site-header__menu-link {
    color: var(--color-ink);
    border-bottom: 2px solid transparent;
    padding-bottom: var(--space-1);
    transition: color var(--transition-base), border-color var(--transition-base);
}

.site-header__menu-link:hover {
    color: var(--color-otto-green);
    border-bottom-color: var(--color-sun-yellow);
}

/* ---- Actions (Search, Heart, Hamburger) ---- */
.site-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

@media (min-width: 768px) {
    .site-header__actions {
        justify-self: end;
    }
}

/* Shared button reset */
.site-header__btn-search,
.site-header__btn-favourites,
.site-header__btn-menu {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-ink);
    padding: 0;
    display: flex;
    align-items: center;
    transition: color var(--transition-base);
}

.site-header__btn-search svg,
.site-header__btn-favourites svg {
    width: 1.25rem;
    height: 1.25rem;
}

.site-header__btn-menu svg {
    width: 1.5rem;
    height: 1.5rem;
}

.site-header__btn-search:hover {
    color: var(--color-otto-green);
}

/* Heart button */
.site-header__btn-favourites {
    position: relative;
}

.site-header__btn-favourites:hover {
    color: var(--color-papa-rust);
}

.site-header__btn-favourites.has-saved {
    color: var(--color-papa-rust);
}

/* Count badge */
.site-header__fav-count {
    position: absolute;
    top: -6px;
    right: -8px;
    background-color: var(--color-papa-rust);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 0.625rem;
    font-weight: 700;
    min-width: 1rem;
    height: 1rem;
    border-radius: var(--radius-full);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 0 3px;
    line-height: 1;
}

.site-header__btn-favourites.has-saved .site-header__fav-count {
    display: flex;
}

/* Hamburger – visible only on mobile */
.site-header__btn-menu {
    display: flex;
}

@media (min-width: 768px) {
    .site-header__btn-menu {
        display: none;
    }
}

/* ============================================
   Navigation Loop 10 – Dropdown / Accordion submenus
   + working mobile menu panel
   ============================================ */

/* ---- Parent item that carries a submenu ---- */
.site-header__menu-item--has-children {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

/* ---- Submenu toggle (chevron button next to a parent link) ---- */
.site-header__submenu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-ink);
    padding: var(--space-1);
    display: inline-flex;
    align-items: center;
    transition: color var(--transition-base);
}

.site-header__submenu-toggle svg {
    width: 1.1rem;
    height: 1.1rem;
    transition: transform var(--transition-base);
}

.site-header__submenu-toggle:hover {
    color: var(--color-otto-green);
}

/* Chevron flips up while the submenu is open */
.site-header__submenu-toggle[aria-expanded="true"] svg {
    transform: rotate(180deg);
}

/* ---- Submenu list (shared) ---- */
.site-header__submenu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-header__submenu-link {
    display: block;
    color: var(--color-ink);
    white-space: nowrap;
    transition: color var(--transition-base);
}

.site-header__submenu-link:hover,
.site-header__submenu-link[aria-current="page"] {
    color: var(--color-otto-green);
}

/* ============================================================
   Mobile (< 768px): hamburger opens a panel; submenus accordion
   ============================================================ */
@media (max-width: 767.98px) {
    /* Opened menu becomes a panel docked under the header bar */
    .site-header__menu--open {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-paper);
        border-bottom: 2px solid var(--color-ink);
        box-shadow: var(--shadow-watercolor);
        padding: var(--space-3) var(--space-6);
        max-height: calc(100vh - 100%);
        overflow-y: auto;
    }

    .site-header__menu--open .site-header__menu-item {
        border-bottom: 1px solid var(--color-ink-10);
        padding: var(--space-2) 0;
    }

    .site-header__menu--open .site-header__menu-item--has-children {
        flex-wrap: wrap;
        justify-content: space-between;
    }

    /* Accordion: submenu stays closed until its toggle is expanded */
    .site-header__menu--open .site-header__submenu {
        display: none;
        flex-basis: 100%;
        padding: var(--space-2) 0 0 var(--space-4);
    }

    .site-header__menu--open .site-header__submenu-toggle[aria-expanded="true"] ~ .site-header__submenu {
        display: block;
    }

    .site-header__menu--open .site-header__submenu-item {
        padding: var(--space-1) 0;
    }
}

/* ============================================================
   Desktop (>= 768px): hover / focus / click dropdowns
   ============================================================ */
@media (min-width: 768px) {
    .site-header__menu-item--has-children {
        position: relative;
    }

    .site-header__submenu {
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 12rem;
        margin-top: var(--space-2);
        padding: var(--space-3);
        background-color: var(--color-paper);
        border: 2px solid var(--color-ink);
        border-radius: var(--radius-hand);
        box-shadow: var(--shadow-watercolor);
        display: flex;
        flex-direction: column;
        gap: var(--space-2);
        font-size: var(--text-base);
        visibility: hidden;
        opacity: 0;
        transform: translateY(var(--space-2));
        transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
        z-index: 60;
    }

    /* Open on hover, on keyboard focus inside the item, or when toggled via JS */
    .site-header__menu-item--has-children:hover .site-header__submenu,
    .site-header__menu-item--has-children:focus-within .site-header__submenu,
    .site-header__submenu-toggle[aria-expanded="true"] ~ .site-header__submenu {
        visibility: visible;
        opacity: 1;
        transform: none;
    }

    .site-header__submenu-link {
        padding-bottom: 2px;
        border-bottom: 2px solid transparent;
    }

    .site-header__submenu-link:hover {
        border-bottom-color: var(--color-sun-yellow);
    }
}

/* Respect reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
    .site-header__submenu,
    .site-header__submenu-toggle svg {
        transition: none;
    }
}