/*
 * Castlo Industrial — Navigation CSS
 * Covers: nav bar, mega-menu, simple dropdowns, mobile drawer
 * Colors: Navy #0D1B2A + Orange #E85D04
 * Fonts: Oswald (headings/labels) + Open Sans (body)
 */

/* ============================================================
   CSS VARIABLES (fallback — also defined in style.css)
============================================================ */
:root {
    --castlo-navy:        #0D1B2A;
    --castlo-navy-light:  #1A2F4E;
    --castlo-orange:      #E85D04;
    --castlo-orange-light:#FF7A2F;
    --castlo-white:       #FFFFFF;
    --castlo-light-border:#E2E8F0;
    --castlo-light-bg:    #F7FAFC;
    --castlo-mid-gray:    #718096;
    --radius-sm:          4px;
    --shadow-lg:          0 8px 30px rgba(0, 0, 0, 0.18);
    --transition-fast:    0.18s ease;
    --font-heading:       'Oswald', sans-serif;
    --container-max:      1280px;
    --container-padding:  0 1.5rem;
}

/* ============================================================
   NAV BAR WRAPPER
============================================================ */
#castlo-nav {
    background-color: var(--castlo-navy);
    width: 100%;
    position: relative;
    z-index: 900;
}

.castlo-nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--container-padding);
    height: 48px;
}

/* ============================================================
   MAIN MENU LIST
============================================================ */
.castlo-main-menu {
    display: flex;
    align-items: stretch;
    list-style: none;
    margin: 0;
    padding: 0;
    height: 100%;
}

.castlo-main-menu > li {
    position: relative;
    display: flex;
    align-items: center;
}

.castlo-main-menu > li > a {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    height: 100%;
    padding: 0 1rem;
    color: var(--castlo-white);
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    text-decoration: none;
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.castlo-main-menu > li > a:hover,
.castlo-main-menu > li:focus-within > a {
    color: var(--castlo-orange-light);
    border-bottom-color: var(--castlo-orange);
    background-color: rgba(255, 255, 255, 0.06);
}

.nav-arrow {
    display: inline-flex;
    align-items: center;
    font-size: 0.65rem;
    transition: transform var(--transition-fast);
}

.castlo-main-menu > li:hover .nav-arrow,
.castlo-main-menu > li:focus-within .nav-arrow {
    transform: rotate(180deg);
}

/* ============================================================
   MEGA MENU DROPDOWN
============================================================ */
.mega-menu-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 800px;
    background: var(--castlo-white);
    box-shadow: var(--shadow-lg);
    border-top: 3px solid var(--castlo-orange);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    padding: 1.5rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    z-index: 9990;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.castlo-main-menu > li.has-mega-menu:hover .mega-menu-dropdown,
.castlo-main-menu > li.has-mega-menu:focus-within .mega-menu-dropdown {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.mega-menu-col {
    display: flex;
    flex-direction: column;
}

.mega-menu-col-title {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--castlo-navy);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding-bottom: 0.5rem;
    margin-bottom: 0.6rem;
    border-bottom: 2px solid var(--castlo-orange);
}

.mega-menu-col ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.mega-menu-col ul li a {
    display: block;
    font-size: 0.82rem;
    color: var(--castlo-navy);
    text-decoration: none;
    padding: 0.3rem 0.4rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.mega-menu-col ul li a:hover {
    color: var(--castlo-orange);
    background-color: var(--castlo-light-bg);
}

/* ============================================================
   SIMPLE DROPDOWN
============================================================ */
.simple-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--castlo-white);
    box-shadow: var(--shadow-lg);
    border-top: 3px solid var(--castlo-orange);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    list-style: none;
    margin: 0;
    padding: 0.5rem 0;
    z-index: 9990;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.castlo-main-menu > li.has-dropdown:hover .simple-dropdown,
.castlo-main-menu > li.has-dropdown:focus-within .simple-dropdown {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.simple-dropdown li a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 1rem;
    font-size: 0.85rem;
    color: var(--castlo-navy);
    text-decoration: none;
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.simple-dropdown li a i {
    color: var(--castlo-orange);
    width: 1rem;
    text-align: center;
    flex-shrink: 0;
}

.simple-dropdown li a:hover {
    color: var(--castlo-orange);
    background-color: var(--castlo-light-bg);
}

/* ============================================================
   SECONDARY NAVIGATION LINKS
============================================================ */
.nav-secondary-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-shrink: 0;
}

.nav-secondary-links a {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.75rem;
    font-size: 0.78rem;
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.nav-secondary-links a:hover {
    color: var(--castlo-white);
    border-color: var(--castlo-orange);
    background-color: var(--castlo-orange);
}

.nav-secondary-links a i {
    font-size: 0.75rem;
}

/* ============================================================
   MOBILE OVERLAY
============================================================ */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 9998;
    display: none;
}

.mobile-menu-overlay.is-open {
    display: block;
}

/* ============================================================
   MOBILE DRAWER
============================================================ */
.mobile-menu-drawer {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100%;
    background-color: var(--castlo-navy);
    z-index: 9999;
    overflow-y: auto;
    transform: translateX(-110%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.mobile-menu-drawer.is-open {
    transform: translateX(0);
}

.mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    flex-shrink: 0;
}

.mobile-drawer-logo {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--castlo-white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mobile-drawer-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
    transition: color var(--transition-fast);
}

.mobile-drawer-close:hover {
    color: var(--castlo-orange);
}

.mobile-drawer-nav {
    list-style: none;
    margin: 0;
    padding: 0.75rem 0;
    flex: 1;
}

.mobile-drawer-nav li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.mobile-drawer-nav li a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1.25rem;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.mobile-drawer-nav li a:hover {
    color: var(--castlo-orange-light);
    background-color: rgba(255, 255, 255, 0.05);
}

.mobile-drawer-nav li a i {
    color: var(--castlo-orange);
    width: 1.1rem;
    text-align: center;
    flex-shrink: 0;
}

.mobile-drawer-submenu {
    list-style: none;
    margin: 0;
    padding: 0;
    background: rgba(0, 0, 0, 0.2);
    display: none;
}

.mobile-drawer-submenu.is-open {
    display: block;
}

.mobile-drawer-submenu li a {
    font-size: 0.82rem;
    font-weight: 400;
    text-transform: none;
    padding-left: 2.5rem;
    color: rgba(255, 255, 255, 0.65);
}

.mobile-drawer-submenu li a:hover {
    color: var(--castlo-orange-light);
}

.mobile-drawer-toggle {
    margin-left: auto;
    font-size: 0.65rem;
    transition: transform var(--transition-fast);
    color: rgba(255, 255, 255, 0.5);
}

.mobile-drawer-nav li.is-open > a .mobile-drawer-toggle {
    transform: rotate(180deg);
}

.mobile-drawer-actions {
    padding: 1rem 1.25rem;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-shrink: 0;
}

.mobile-drawer-actions a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    text-decoration: none;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.mobile-drawer-actions .btn-drawer-primary {
    background-color: var(--castlo-orange);
    color: var(--castlo-white);
    border: 1px solid var(--castlo-orange);
}

.mobile-drawer-actions .btn-drawer-primary:hover {
    background-color: var(--castlo-orange-light);
    border-color: var(--castlo-orange-light);
}

.mobile-drawer-actions .btn-drawer-secondary {
    background-color: transparent;
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.mobile-drawer-actions .btn-drawer-secondary:hover {
    color: var(--castlo-white);
    border-color: rgba(255, 255, 255, 0.5);
    background-color: rgba(255, 255, 255, 0.05);
}

/* ============================================================
   RESPONSIVE — hide desktop nav on mobile, show drawer trigger
============================================================ */
@media (max-width: 768px) {
    #castlo-nav {
        display: none;
    }
}

@media (min-width: 769px) {
    .mobile-menu-overlay,
    .mobile-menu-drawer {
        display: none;
    }
}