/* ============================================
   CaliOptik - Header Styles
   ============================================ */

/* --- Announcement Bar --- */
.co-announcement {
    background-color: var(--co-primary);
    color: var(--co-bg);
    text-align: center;
    padding: var(--co-space-2) var(--co-space-4);
    font-size: var(--co-text-xs);
    font-weight: var(--co-font-medium);
    letter-spacing: var(--co-tracking-wide);
    position: relative;
    z-index: var(--co-z-sticky);
    overflow: hidden;
}

.co-announcement__inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--co-space-2);
}

.co-announcement a {
    color: var(--co-accent-light);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.co-announcement a:hover {
    color: var(--co-accent);
}

.co-announcement__close {
    position: absolute;
    right: var(--co-space-4);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--co-gray-400);
    cursor: pointer;
    padding: var(--co-space-1);
    line-height: 0;
    transition: color var(--co-transition-fast);
}

.co-announcement__close:hover {
    color: var(--co-bg);
}

.co-announcement.co-hidden {
    display: none;
}

/* --- Main Header --- */
.co-header {
    background-color: var(--co-bg);
    border-bottom: 1px solid var(--co-border-light);
    position: sticky;
    top: 0;
    z-index: var(--co-z-sticky);
    transition: box-shadow var(--co-transition-base), transform var(--co-transition-base);
}

.co-header.co-header--scrolled {
    box-shadow: var(--co-shadow-md);
}

.co-header.co-header--hidden {
    transform: translateY(-100%);
}

.co-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: var(--co-space-8);
}

/* --- Logo --- */
.co-header__logo {
    flex-shrink: 0;
}

.co-header__logo a {
    display: flex;
    align-items: center;
}

.co-header__logo img {
    max-height: 40px;
    width: auto;
}

.co-header__logo-text {
    font-family: var(--co-font-heading);
    font-size: var(--co-text-2xl);
    font-weight: var(--co-font-bold);
    letter-spacing: var(--co-tracking-tight);
    text-decoration: none;
    display: flex;
    align-items: baseline;
}

.co-header__logo-main {
    color: var(--co-primary);
}

.co-header__logo-accent {
    color: var(--co-accent);
}

/* --- Navigation --- */
.co-header__nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.co-header__menu {
    display: flex;
    align-items: center;
    gap: var(--co-space-1);
    list-style: none;
    margin: 0;
    padding: 0;
}

.co-header__menu > .menu-item {
    position: relative;
}

.co-header__menu > .menu-item > a {
    display: flex;
    align-items: center;
    padding: var(--co-space-2) var(--co-space-4);
    font-size: var(--co-text-sm);
    font-weight: var(--co-font-medium);
    color: var(--co-primary);
    letter-spacing: var(--co-tracking-wide);
    text-transform: uppercase;
    text-decoration: none;
    transition: color var(--co-transition-fast);
    position: relative;
    white-space: nowrap;
}

.co-header__menu > .menu-item > a::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: var(--co-space-4);
    right: var(--co-space-4);
    height: 2px;
    background-color: var(--co-accent);
    transform: scaleX(0);
    transition: transform var(--co-transition-base);
    transform-origin: center;
}

.co-header__menu > .menu-item > a:hover,
.co-header__menu > .menu-item.current-menu-item > a,
.co-header__menu > .menu-item.current-menu-ancestor > a {
    color: var(--co-accent);
}

.co-header__menu > .menu-item > a:hover::after,
.co-header__menu > .menu-item.current-menu-item > a::after {
    transform: scaleX(1);
}

/* --- Dropdown / Submenu --- */
.co-header__menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background-color: var(--co-bg);
    border: 1px solid var(--co-border-light);
    box-shadow: var(--co-shadow-lg);
    list-style: none;
    margin: 0;
    padding: var(--co-space-2) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--co-transition-base);
    z-index: var(--co-z-dropdown);
}

.co-header__menu > .menu-item:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.co-header__menu .sub-menu .menu-item a {
    display: block;
    padding: var(--co-space-2) var(--co-space-5);
    font-size: var(--co-text-sm);
    color: var(--co-gray-600);
    transition: all var(--co-transition-fast);
}

.co-header__menu .sub-menu .menu-item a:hover {
    color: var(--co-primary);
    background-color: var(--co-gray-50);
    padding-left: var(--co-space-6);
}

/* --- Header Actions --- */
.co-header__actions {
    display: flex;
    align-items: center;
    gap: var(--co-space-3);
    flex-shrink: 0;
}

.co-header__action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    color: var(--co-primary);
    cursor: pointer;
    transition: color var(--co-transition-fast);
    position: relative;
    border-radius: var(--co-radius-full);
    text-decoration: none;
}

.co-header__action-btn:hover {
    color: var(--co-accent);
    background-color: var(--co-gray-50);
}

.co-header__action-btn svg {
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* --- Cart Badge --- */
.co-header__cart {
    position: relative;
}

.co-header__cart-count {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--co-accent);
    color: var(--co-bg);
    font-size: 10px;
    font-weight: var(--co-font-bold);
    border-radius: var(--co-radius-full);
    padding: 0 4px;
    line-height: 1;
}

.co-header__cart-count:empty,
.co-header__cart-count[data-count="0"] {
    display: none;
}

/* --- Mobile Toggle --- */
.co-header__mobile-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: calc(var(--co-z-fixed) + 1);
}

.co-hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 24px;
    height: 24px;
}

.co-hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--co-primary);
    transition: all var(--co-transition-base);
    transform-origin: center;
}

.co-header__mobile-toggle.co-active .co-hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.co-header__mobile-toggle.co-active .co-hamburger span:nth-child(2) {
    opacity: 0;
}

.co-header__mobile-toggle.co-active .co-hamburger span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Search Overlay --- */
.co-search-overlay {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--co-bg);
    border-bottom: 1px solid var(--co-border);
    padding: var(--co-space-6) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--co-transition-base);
    box-shadow: var(--co-shadow-lg);
}

.co-search-overlay.co-active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.co-search-form {
    display: flex;
    align-items: center;
    gap: var(--co-space-3);
    max-width: 700px;
    margin: 0 auto;
}

.co-search-form__input {
    flex: 1;
    padding: var(--co-space-4) var(--co-space-5);
    font-size: var(--co-text-lg);
    border: 1px solid var(--co-border);
    border-radius: 0;
    outline: none;
    background: var(--co-gray-50);
}

.co-search-form__input:focus {
    border-color: var(--co-accent);
    background: var(--co-bg);
}

.co-search-form__submit {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background-color: var(--co-primary);
    color: var(--co-bg);
    border: none;
    cursor: pointer;
    transition: background-color var(--co-transition-fast);
    flex-shrink: 0;
}

.co-search-form__submit:hover {
    background-color: var(--co-accent);
}

.co-search-form__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    color: var(--co-gray-500);
    cursor: pointer;
    transition: color var(--co-transition-fast);
    flex-shrink: 0;
}

.co-search-form__close:hover {
    color: var(--co-primary);
}

/* --- Mobile Menu Styles --- */
@media (max-width: 991px) {
    .co-header__mobile-toggle {
        display: flex;
    }

    .co-header__nav {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--co-bg);
        padding: 80px var(--co-space-6) var(--co-space-6);
        transform: translateX(-100%);
        transition: transform var(--co-transition-slow);
        z-index: var(--co-z-fixed);
        overflow-y: auto;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
    }

    .co-header__nav.co-active {
        transform: translateX(0);
    }

    .co-header__menu {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        width: 100%;
    }

    .co-header__menu > .menu-item {
        width: 100%;
        border-bottom: 1px solid var(--co-border-light);
    }

    .co-header__menu > .menu-item > a {
        padding: var(--co-space-4) 0;
        font-size: var(--co-text-base);
        width: 100%;
    }

    .co-header__menu > .menu-item > a::after {
        display: none;
    }

    /* Mobile submenu */
    .co-header__menu .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        padding: 0 0 var(--co-space-3) var(--co-space-4);
        background: transparent;
        display: none;
    }

    .co-header__menu > .menu-item.co-submenu-open > .sub-menu {
        display: block;
    }

    .co-header__menu .sub-menu .menu-item a {
        padding: var(--co-space-2) 0;
        font-size: var(--co-text-sm);
    }

    .co-header__menu .sub-menu .menu-item a:hover {
        padding-left: var(--co-space-2);
        background: transparent;
    }
}

/* --- Mobile body scroll lock --- */
body.co-menu-open {
    overflow: hidden;
}