/* ==========================================================================
   Header + Mega-Menu + Mobile Nav
   ========================================================================== */

/* Top bar */
.tc-top-bar {
    background: var(--tc-bg-secondary);
    border-bottom: 1px solid var(--tc-border-color);
    height: var(--tc-top-bar-height);
    display: flex;
    align-items: center;
    font-size: var(--tc-text-xs);
    color: var(--tc-text-secondary);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--tc-z-sticky);
}

.tc-top-bar__inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--tc-space-sm);
}

.tc-top-bar__icon {
    color: var(--tc-accent);
}

/* Header */
.tc-header {
    position: fixed;
    top: var(--tc-top-bar-height);
    left: 0;
    right: 0;
    height: var(--tc-header-height);
    background: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--tc-border-color);
    z-index: var(--tc-z-sticky);
    transition: all var(--tc-transition-base);
}

.tc-header.is-scrolled {
    background: rgba(13, 13, 13, 0.98);
    box-shadow: var(--tc-shadow-lg);
}

.tc-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

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

.tc-header__logo a {
    display: flex;
    align-items: center;
    gap: var(--tc-space-sm);
    color: var(--tc-text-primary);
    font-family: var(--tc-font-heading);
    font-weight: 800;
    font-size: var(--tc-text-xl);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.tc-header__logo img {
    max-height: 45px;
    width: auto;
}

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

/* Primary Nav */
.tc-primary-nav {
    display: flex;
    align-items: center;
    gap: 0;
}

.tc-primary-nav__list {
    display: flex;
    align-items: center;
    gap: 0;
}

.tc-primary-nav__item {
    position: relative;
}

.tc-primary-nav__link {
    display: flex;
    align-items: center;
    gap: var(--tc-space-xs);
    padding: 0.5rem 1rem;
    color: var(--tc-text-secondary);
    font-size: var(--tc-text-sm);
    font-weight: 500;
    transition: color var(--tc-transition-fast);
    white-space: nowrap;
}

.tc-primary-nav__link:hover,
.tc-primary-nav__item--current > .tc-primary-nav__link {
    color: var(--tc-accent);
}

/* Dropdown arrow */
.tc-primary-nav__arrow {
    font-size: 0.6em;
    transition: transform var(--tc-transition-fast);
}

.tc-primary-nav__item:hover .tc-primary-nav__arrow {
    transform: rotate(180deg);
}

/* Sub menu */
.tc-primary-nav__sub {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--tc-bg-card);
    border: var(--tc-border);
    border-radius: var(--tc-radius-md);
    padding: var(--tc-space-sm) 0;
    box-shadow: var(--tc-shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--tc-transition-fast);
    z-index: var(--tc-z-dropdown);
}

.tc-primary-nav__item:hover > .tc-primary-nav__sub {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.tc-primary-nav__sub .tc-primary-nav__link {
    padding: 0.5rem 1.25rem;
    font-size: var(--tc-text-sm);
}

.tc-primary-nav__sub .tc-primary-nav__link:hover {
    background: var(--tc-bg-elevated);
}

/* Mega Menu */
.tc-mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    width: 800px;
    max-width: calc(100vw - 2rem);
    background: var(--tc-bg-card);
    border: var(--tc-border);
    border-radius: var(--tc-radius-lg);
    padding: var(--tc-space-xl);
    box-shadow: var(--tc-shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--tc-transition-fast);
    z-index: var(--tc-z-dropdown);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--tc-space-lg);
}

.tc-primary-nav__item:hover > .tc-mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.tc-mega-menu__column-title {
    font-family: var(--tc-font-heading);
    font-size: var(--tc-text-sm);
    font-weight: 700;
    text-transform: uppercase;
    color: var(--tc-accent);
    margin-bottom: var(--tc-space-md);
    letter-spacing: 0.05em;
}

.tc-mega-menu__list {
    display: flex;
    flex-direction: column;
    gap: var(--tc-space-xs);
}

.tc-mega-menu__link {
    display: block;
    padding: var(--tc-space-xs) 0;
    color: var(--tc-text-secondary);
    font-size: var(--tc-text-sm);
    transition: all var(--tc-transition-fast);
}

.tc-mega-menu__link:hover {
    color: var(--tc-accent);
    padding-left: var(--tc-space-sm);
}

/* Header actions */
.tc-header__actions {
    display: flex;
    align-items: center;
    gap: var(--tc-space-sm);
}

.tc-header__action-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--tc-text-secondary);
    border-radius: var(--tc-radius-md);
    transition: all var(--tc-transition-fast);
}

.tc-header__action-btn:hover {
    color: var(--tc-accent);
    background: rgba(255, 107, 0, 0.1);
}

.tc-header__action-btn svg {
    width: 20px;
    height: 20px;
}

/* Cart count badge */
.tc-cart-count {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 18px;
    height: 18px;
    background: var(--tc-accent);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: var(--tc-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    line-height: 1;
}

.tc-cart-count:empty {
    display: none;
}

/* Mobile toggle */
.tc-header__mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    cursor: pointer;
}

.tc-header__mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--tc-text-primary);
    border-radius: 2px;
    transition: all var(--tc-transition-base);
}

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

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

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

/* Mobile Nav */
.tc-mobile-nav {
    position: fixed;
    top: calc(var(--tc-top-bar-height) + var(--tc-header-height));
    left: 0;
    bottom: 0;
    width: 300px;
    max-width: 85vw;
    background: var(--tc-bg-card);
    border-right: var(--tc-border);
    z-index: var(--tc-z-overlay);
    transform: translateX(-100%);
    transition: transform var(--tc-transition-base);
    overflow-y: auto;
    padding: var(--tc-space-lg);
}

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

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

.tc-mobile-nav__link {
    display: block;
    padding: 0.75rem 0;
    color: var(--tc-text-primary);
    font-size: var(--tc-text-base);
    font-weight: 500;
    border-bottom: 1px solid var(--tc-border-color);
}

.tc-mobile-nav__link:hover {
    color: var(--tc-accent);
}

.tc-mobile-nav__sub {
    padding-left: var(--tc-space-lg);
}

.tc-mobile-nav__sub .tc-mobile-nav__link {
    font-size: var(--tc-text-sm);
    color: var(--tc-text-secondary);
}

/* Search overlay */
.tc-search-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: var(--tc-z-modal);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    opacity: 0;
    visibility: hidden;
    transition: all var(--tc-transition-base);
}

.tc-search-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

.tc-search-overlay__inner {
    width: 100%;
    max-width: 600px;
    padding: 0 var(--tc-space-lg);
}

.tc-search-overlay__form {
    position: relative;
}

.tc-search-overlay__input {
    width: 100%;
    padding: 1.25rem 1.5rem;
    padding-right: 3.5rem;
    background: var(--tc-bg-card);
    border: 2px solid var(--tc-accent);
    border-radius: var(--tc-radius-lg);
    color: var(--tc-text-primary);
    font-size: var(--tc-text-xl);
    font-family: var(--tc-font-body);
}

.tc-search-overlay__input::placeholder {
    color: var(--tc-text-muted);
}

.tc-search-overlay__input:focus {
    outline: none;
    box-shadow: var(--tc-shadow-glow);
}

.tc-search-overlay__submit {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--tc-accent);
    background: none;
    border: none;
    cursor: pointer;
}

.tc-search-overlay__close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    color: var(--tc-text-secondary);
    font-size: var(--tc-text-2xl);
    cursor: pointer;
    background: none;
    border: none;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tc-search-overlay__close:hover {
    color: var(--tc-text-primary);
}

.tc-search-results {
    margin-top: var(--tc-space-md);
    background: var(--tc-bg-card);
    border: var(--tc-border);
    border-radius: var(--tc-radius-md);
    max-height: 400px;
    overflow-y: auto;
}

.tc-search-results__item {
    display: flex;
    align-items: center;
    gap: var(--tc-space-md);
    padding: var(--tc-space-md);
    border-bottom: 1px solid var(--tc-border-color);
    color: var(--tc-text-primary);
    transition: background var(--tc-transition-fast);
}

.tc-search-results__item:last-child {
    border-bottom: none;
}

.tc-search-results__item:hover {
    background: var(--tc-bg-elevated);
}

.tc-search-results__img {
    width: 50px;
    height: 70px;
    object-fit: cover;
    border-radius: var(--tc-radius-sm);
}

.tc-search-results__name {
    font-weight: 500;
    font-size: var(--tc-text-sm);
}

.tc-search-results__price {
    color: var(--tc-accent);
    font-weight: 600;
    font-size: var(--tc-text-sm);
}

/* Mini Cart */
.tc-mini-cart {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 380px;
    max-width: 90vw;
    background: var(--tc-bg-card);
    border-left: var(--tc-border);
    z-index: var(--tc-z-modal);
    transform: translateX(100%);
    transition: transform var(--tc-transition-base);
    display: flex;
    flex-direction: column;
}

.tc-mini-cart.is-open {
    transform: translateX(0);
}

.tc-mini-cart__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--tc-space-lg);
    border-bottom: var(--tc-border);
}

.tc-mini-cart__title {
    font-family: var(--tc-font-heading);
    font-size: var(--tc-text-lg);
    font-weight: 700;
}

.tc-mini-cart__close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--tc-text-secondary);
    cursor: pointer;
    border-radius: var(--tc-radius-sm);
}

.tc-mini-cart__close:hover {
    color: var(--tc-text-primary);
    background: var(--tc-bg-elevated);
}

.tc-mini-cart__items {
    flex: 1;
    overflow-y: auto;
    padding: var(--tc-space-md);
}

.tc-mini-cart__footer {
    padding: var(--tc-space-lg);
    border-top: var(--tc-border);
}

.tc-mini-cart__total {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--tc-space-md);
    font-weight: 600;
    font-size: var(--tc-text-lg);
}

.tc-mini-cart__total-amount {
    color: var(--tc-accent);
}

/* Responsive */
@media (max-width: 992px) {
    .tc-primary-nav {
        display: none;
    }

    .tc-header__mobile-toggle {
        display: flex;
    }
}

@media (max-width: 480px) {
    .tc-top-bar {
        font-size: 0.65rem;
    }
}