/* ============================================================
   NAVBAR.CSS — Navigation Bar
   Vitech Home & Living
   ============================================================ */

/* ============================================================
   NAVBAR CONTAINER
   ============================================================ */
.navbar {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: var(--z-navbar);
    height: 70px;
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ============================================================
   BRAND / LOGO
   ============================================================ */
.navbar-brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    text-decoration: none;
}

.navbar-logo {
    height: 40px;
    width: auto;
    display: block;
}

/* ============================================================
   NAV LINKS (Desktop)
   ============================================================ */
.navbar-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.navbar-link {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.5rem 0.85rem;
    font-family: var(--font-family);
    font-size: 0.95rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
    white-space: nowrap;
}

.navbar-link:hover {
    color: var(--color-primary);
    background-color: rgba(76, 183, 197, 0.08);
}

/* ============================================================
   DROPDOWN (Desktop)
   ============================================================ */
.nav-dropdown {
    position: relative;
}

.dropdown-toggle {
    cursor: pointer;
}

.dropdown-arrow {
    font-size: 0.65rem;
    transition: transform var(--transition-fast);
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 210px;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem 0;
    margin: 0;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: 0.65rem 1.25rem;
    font-family: var(--font-family);
    font-size: 0.9rem;
    font-weight: var(--font-weight-regular);
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.dropdown-link:hover {
    color: var(--color-primary);
    background-color: rgba(76, 183, 197, 0.06);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--color-border);
    margin: 0.4rem 0.75rem;
}

/* ============================================================
   NAVBAR ACTIONS (Search + Cart + Hamburger)
   ============================================================ */
.navbar-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

/* Search (Desktop) */
.navbar-search {
    display: flex;
    align-items: center;
    background-color: var(--color-bg-section);
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.navbar-search:focus-within {
    border-color: var(--color-primary);
    background-color: var(--color-white);
    box-shadow: 0 0 0 3px rgba(76, 183, 197, 0.12);
}

.search-input {
    border: none;
    background: transparent;
    padding: 0.55rem 0.75rem;
    font-family: var(--font-family);
    font-size: 0.9rem;
    color: var(--color-text);
    width: 180px;
    outline: none;
}

.search-input::placeholder {
    color: #9CA3AF;
    font-weight: var(--font-weight-regular);
}

.search-btn {
    background: transparent;
    border: none;
    padding: 0.55rem 0.75rem;
    cursor: pointer;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    transition: color var(--transition-fast);
}

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

/* Cart */
.cart-link {
    position: relative;
    display: flex;
    align-items: center;
    padding: 0.5rem;
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.cart-link:hover {
    color: var(--color-primary);
    background-color: rgba(76, 183, 197, 0.08);
}

.cart-count {
    position: absolute;
    top: -2px;
    right: -4px;
    background-color: var(--color-danger);
    color: var(--color-white);
    font-family: var(--font-family);
    font-size: 0.68rem;
    font-weight: var(--font-weight-bold);
    min-width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    line-height: 1;
}

/* ============================================================
   HAMBURGER BUTTON (Mobile)
   ============================================================ */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-fast);
}

.hamburger:hover {
    background-color: rgba(76, 183, 197, 0.08);
}

.hamburger-line {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Hamburger active state */
.hamburger.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   MOBILE MENU
   ============================================================ */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    max-width: 85vw;
    height: 100vh;
    background-color: var(--color-white);
    z-index: var(--z-modal);
    padding: 0;
    overflow-y: auto;
    transition: right var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
}

.mobile-menu-title {
    font-family: var(--font-family);
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary-dark);
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 1.75rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color var(--transition-fast);
}

.mobile-menu-close:hover {
    color: var(--color-danger);
}

/* Mobile Links */
.mobile-menu-links {
    list-style: none;
    margin: 0;
    padding: 0.5rem 0;
}

.mobile-link {
    display: block;
    padding: 0.85rem 1.5rem;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    text-decoration: none;
    cursor: pointer;
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.mobile-link:hover {
    color: var(--color-primary);
    background-color: rgba(76, 183, 197, 0.05);
}

/* Mobile Dropdown */
.mobile-dropdown-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mobile-dropdown-toggle::after {
    content: "▾";
    font-size: 0.7rem;
    transition: transform var(--transition-fast);
}

.mobile-dropdown-toggle.open::after {
    transform: rotate(180deg);
}

/* Mobile Submenu */
.mobile-submenu {
    list-style: none;
    margin: 0;
    padding: 0;
    background-color: var(--color-bg-section);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.mobile-submenu.open {
    max-height: 500px;
}

.mobile-sublink {
    display: block;
    padding: 0.7rem 1.5rem 0.7rem 2.5rem;
    font-family: var(--font-family);
    font-size: 0.93rem;
    font-weight: var(--font-weight-regular);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.mobile-sublink:hover {
    color: var(--color-primary);
    background-color: rgba(76, 183, 197, 0.05);
}

.mobile-submenu-divider {
    height: 1px;
    background-color: var(--color-border);
    margin: 0.3rem 1.5rem 0.3rem 2.5rem;
}

/* Mobile Search */
.mobile-search {
    display: flex;
    align-items: center;
    margin: 1rem 1.5rem;
    background-color: var(--color-bg-section);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.mobile-search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 0.65rem 0.75rem;
    font-family: var(--font-family);
    font-size: 0.93rem;
    color: var(--color-text);
    outline: none;
}

.mobile-search-input::placeholder {
    color: #9CA3AF;
}

.mobile-search-btn {
    background: transparent;
    border: none;
    padding: 0.65rem 0.75rem;
    cursor: pointer;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
}

/* Overlay */
.mobile-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: var(--z-overlay);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
    .navbar-links {
        display: none;
    }

    .navbar-search {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .navbar-actions {
        gap: 0.25rem;
    }

    .cart-link {
        padding: 0.4rem;
    }
}

@media (max-width: 480px) {
    .navbar {
        height: 60px;
    }

    .navbar-logo {
        height: 32px;
    }
}