/*
 * Dark Store — Navigation System
 * Sticky navbar with backdrop blur, dropdowns, mobile panel
 */

/* ═══════ NAVBAR ═══════ */
.navbar {
    position: relative; z-index: 100;
    background: rgba(8,8,13,0.78);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}
.navbar.sticky-header {
    position: sticky; top: 0;
}
.navbar.transparent-header {
    background: transparent; border-bottom-color: transparent;
    position: absolute; top: 0; left: 0; width: 100%;
    backdrop-filter: none; -webkit-backdrop-filter: none;
}
.navbar.transparent-header.sticky-header {
    position: absolute; /* transparent takes priority on homepage */
}
.navbar-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 64px;
}
.nav-left { display: flex; align-items: center; gap: 36px; }
.nav-right { display: flex; align-items: center; gap: 10px; }

/* ── Brand ── */
.nav-brand {
    display: flex; align-items: center; gap: 10px;
    font-size: 17px; font-weight: 700; letter-spacing: -0.03em;
    text-decoration: none; color: var(--text-primary);
}
.nav-brand-icon {
    width: 30px; height: 30px; border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    display: grid; place-items: center;
    box-shadow: 0 0 14px var(--accent-glow);
    overflow: hidden;
}
.nav-brand-icon svg { width: 15px; height: 15px; color: #fff; }
.nav-brand-icon img { width: 100%; height: 100%; object-fit: contain; }

/* Brand with CMS logo (wider) */
.nav-brand.has-logo .nav-brand-icon {
    width: var(--logo-width, 120px);
    height: auto;
    border-radius: 0;
    background: none;
    box-shadow: none;
}
.nav-brand.has-logo .nav-brand-icon svg,
.nav-brand.has-logo .nav-brand-icon img {
    width: 100%; height: auto;
    max-height: 40px; object-fit: contain;
}
.nav-brand.has-logo .nav-brand-icon svg { color: var(--text-primary); }

/* ── Nav Links ── */
.nav-links { display: flex; gap: 4px; list-style: none; }
.nav-links > li { position: relative; }

.nav-link {
    display: flex; align-items: center; gap: 6px;
    padding: 7px 14px; border-radius: var(--radius-sm);
    font-size: 14px; font-weight: 450; color: var(--text-secondary);
    transition: var(--transition); text-decoration: none;
    white-space: nowrap; cursor: pointer;
}
.nav-link:hover { color: var(--text-primary); background: rgba(255,255,255,0.04); }
.nav-link.active { color: var(--text-primary); }

/* Chevron icon for items with submenu */
.nav-link .nav-chevron {
    width: 12px; height: 12px;
    transition: transform var(--transition);
}
.nav-links > li:hover .nav-link .nav-chevron,
.nav-links > li.dropdown-open .nav-link .nav-chevron {
    transform: rotate(180deg);
}

/* ── Dropdown Menu ── */
.dropdown-menu {
    position: absolute; top: 100%; left: 0;
    min-width: 220px; padding: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
    opacity: 0; visibility: hidden;
    transform: translateY(8px);
    transition: opacity 200ms ease, transform 200ms ease, visibility 200ms;
    z-index: 110;
}
.nav-links > li:hover > .nav-link + .dropdown-menu,
.nav-links > li:hover > div > .dropdown-menu,
.nav-links > li.dropdown-open .dropdown-menu {
    opacity: 1; visibility: visible; transform: translateY(0);
}

/* Mega menu (>4 items) */
.dropdown-menu.mega-menu {
    min-width: 500px; left: 50%; transform: translateX(-50%) translateY(8px);
}
.nav-links > li:hover > .nav-link + .dropdown-menu.mega-menu,
.nav-links > li:hover > div > .dropdown-menu.mega-menu,
.nav-links > li.dropdown-open .dropdown-menu.mega-menu {
    transform: translateX(-50%) translateY(0);
}
.mega-menu-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px;
}

/* Dropdown items */
.dropdown-menu .sub-menu { display: flex; flex-direction: column; gap: 2px; }
.dropdown-menu .nav-item a {
    display: block; padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 13.5px; color: var(--text-secondary);
    transition: var(--transition); text-decoration: none;
}
.dropdown-menu .nav-item a:hover {
    background: rgba(255,255,255,0.04);
    color: var(--text-primary);
}

/* ── CTA Button ── */
.nav-cta {
    padding: 7px 16px; border-radius: var(--radius-sm);
    background: var(--accent); color: #fff; font-size: 13px; font-weight: 500;
    border: none; cursor: pointer; transition: var(--transition);
    box-shadow: 0 0 12px var(--accent-glow);
    text-decoration: none; display: inline-flex; align-items: center; gap: 6px;
    white-space: nowrap;
}
.nav-cta:hover { background: var(--accent-hover); color: #fff; }
.nav-cta svg { width: 14px; height: 14px; }

/* ── Language Switcher ── */
.nav-lang { display: flex; align-items: center; gap: 4px; }
.nav-lang a {
    padding: 4px 8px; border-radius: var(--radius-sm);
    font-size: 11px; font-weight: 600; letter-spacing: 0.04em;
    color: var(--text-muted); transition: var(--transition);
    text-decoration: none; border: 1px solid transparent;
}
.nav-lang a:hover { color: var(--text-secondary); border-color: var(--border); }
.nav-lang a.active { color: var(--accent); border-color: var(--border-accent); background: var(--accent-soft); }

/* ── Mobile Menu Toggle ── */
.mobile-menu-btn {
    display: none; background: none; border: none;
    color: var(--text-secondary); cursor: pointer; padding: 6px;
    width: 36px; height: 36px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.mobile-menu-btn:hover { color: var(--text-primary); background: rgba(255,255,255,0.04); }
.mobile-menu-btn svg { width: 22px; height: 22px; }

/* Hamburger lines */
.mobile-menu-btn .burger-line {
    display: block; width: 20px; height: 2px;
    background: currentColor; margin: 4px auto;
    border-radius: 1px; transition: var(--transition);
}
.mobile-menu-btn.active .burger-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}
.mobile-menu-btn.active .burger-line:nth-child(2) { opacity: 0; }
.mobile-menu-btn.active .burger-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* ── Mobile Menu Panel ── */
.mobile-menu {
    position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
    background: var(--bg-surface);
    border-top: 1px solid var(--border);
    z-index: 99;
    opacity: 0; visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 250ms ease, transform 250ms ease, visibility 250ms;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}
.mobile-menu.open {
    opacity: 1; visibility: visible; transform: translateY(0);
}
.mobile-menu-inner { padding: 16px 24px 32px; }

.mobile-menu .mobile-nav-links {
    list-style: none; padding: 0; margin: 0;
}
.mobile-menu .mobile-nav-links > li {
    border-bottom: 1px solid var(--border);
}
.mobile-menu .mobile-nav-link {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 0; font-size: 16px; font-weight: 500;
    color: var(--text-primary); text-decoration: none;
    transition: color var(--transition);
}
.mobile-menu .mobile-nav-link:hover { color: var(--accent); }
.mobile-menu .mobile-nav-link .nav-chevron {
    width: 16px; height: 16px; color: var(--text-muted);
    transition: transform var(--transition);
}
.mobile-menu .mobile-nav-link.open .nav-chevron { transform: rotate(180deg); }

/* Mobile submenu */
.mobile-submenu {
    display: none; padding: 0 0 8px 16px;
}
.mobile-submenu.open { display: block; }
.mobile-submenu a {
    display: block; padding: 8px 0;
    font-size: 14px; color: var(--text-secondary);
    text-decoration: none; transition: color var(--transition);
}
.mobile-submenu a:hover { color: var(--accent); }

/* Mobile CTA & lang */
.mobile-menu-footer {
    margin-top: 24px; padding-top: 24px;
    border-top: 1px solid var(--border);
    display: flex; flex-direction: column; gap: 16px;
}
.mobile-menu-footer .nav-cta {
    width: 100%; text-align: center; justify-content: center;
    padding: 12px 20px; font-size: 15px;
}
.mobile-menu-footer .nav-lang {
    justify-content: center;
}
.mobile-menu-footer .nav-lang a {
    padding: 6px 12px; font-size: 13px;
}

/* ═══════ RESPONSIVE ═══════ */
@media (max-width: 1024px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: flex; align-items: center; justify-content: center; }
}

@media (max-width: 768px) {
    .nav-cta:not(.mobile-menu-footer .nav-cta) { display: none; }
    .nav-lang:not(.mobile-menu-footer .nav-lang) { display: none; }
    .navbar-inner { height: 56px; }
    .mobile-menu { top: 56px; }
}