/* ========================================
   Navigation & Mega Menu Styles
   ======================================== */

/* Navigation Container */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 20, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.nav.has-banner {
    top: 44px;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-height);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
    text-decoration: none;
}

.nav-logo:hover {
    color: var(--text-white);
}

.nav-logo .sigma {
    font-size: 2rem;
    color: var(--primary);
    font-family: var(--font-mono);
}

/* Main Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 12px 16px;
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    cursor: pointer;
}

.nav-link:hover {
    color: var(--primary);
}

.nav-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link svg {
    transform: rotate(180deg);
}

/* Navigation Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-action {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    color: var(--text-light);
    transition: all var(--transition-fast);
    cursor: pointer;
    background: transparent;
    border: none;
}

.nav-action:hover {
    background: var(--bg-card);
    color: var(--primary);
}

.nav-action svg {
    width: 22px;
    height: 22px;
}

/* Cart Badge */
.cart-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--primary);
    color: var(--bg-dark);
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

/* Mega Menu */
.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    min-width: 200px;
}

.mega-menu.mega-menu-wide {
    min-width: 800px;
    left: 0;
    transform: none;
}

.nav-item:hover .mega-menu {
    opacity: 1;
    visibility: visible;
}

/* Mega Menu Columns */
.mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 32px;
}

.mega-menu-column h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.mega-menu-column ul {
    list-style: none;
}

.mega-menu-column li {
    margin-bottom: 8px;
}

.mega-menu-column a {
    display: block;
    padding: 6px 0;
    color: var(--text-light);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.mega-menu-column a:hover {
    color: var(--primary);
    padding-left: 8px;
}

/* Dropdown Menu (Simple) */
.dropdown-menu {
    list-style: none;
    min-width: 220px;
}

.dropdown-menu li {
    margin-bottom: 4px;
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    color: var(--text-light);
    font-size: 0.9rem;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
    background: var(--bg-dark);
    color: var(--primary);
}

.dropdown-menu .badge {
    font-size: 0.65rem;
    padding: 2px 6px;
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-light);
    transition: all var(--transition-fast);
}

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

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

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

/* Mobile Navigation */
@media (max-width: 992px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-dark);
        flex-direction: column;
        align-items: stretch;
        padding: 24px;
        gap: 0;
        overflow-y: auto;
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
    }

    .nav.has-banner .nav-menu {
        top: calc(var(--nav-height) + 44px);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-link {
        padding: 16px 0;
        font-size: 1.1rem;
        border-bottom: 1px solid var(--border-color);
        justify-content: space-between;
    }

    .mega-menu,
    .mega-menu.mega-menu-wide {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        border: none;
        background: transparent;
        padding: 16px 0 16px 16px;
        display: none;
        min-width: auto;
    }

    .nav-item.active .mega-menu {
        display: block;
    }

    .mega-menu-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .nav-actions {
        margin-left: auto;
    }
}

/* Search Overlay */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 20, 0.95);
    z-index: 1100;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 100px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.search-container {
    width: 100%;
    max-width: 600px;
    padding: 0 20px;
}

.search-input-wrapper {
    position: relative;
}

.search-input {
    width: 100%;
    padding: 20px 24px 20px 56px;
    font-size: 1.25rem;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 12px;
}

.search-input:focus {
    border-color: var(--primary);
}

.search-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-light);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-close:hover {
    background: var(--bg-card-hover);
    color: var(--primary);
}

.search-results {
    margin-top: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
    cursor: pointer;
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background: var(--bg-dark);
}

.search-result-thumb {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-result-info h4 {
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.search-result-info span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.search-no-results {
    padding: 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.search-view-all {
    display: block;
    padding: 16px;
    text-align: center;
    color: var(--primary);
    font-weight: 500;
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.search-view-all:hover {
    background: var(--bg-dark);
}