/* =============================
   Navbar Styling - Bootstrap 5
============================= */

/* Editable variables */
:root {
    --nav-bg: #343a40; /* navbar background */
    --nav-text: rgba(255,255,255,0.85); /* default link color */
    --nav-text-dim: rgba(255,255,255,0.65); /* secondary link color */
    --nav-hover-text: rgba(255,255,255,0.95); /* hover link color */
    --nav-active-text: #d4af37; /* active link text */
    --nav-active-bg: #2b3134; /* active link background */
    --nav-border: rgba(0,0,0,0.12); /* navbar bottom border */
    --nav-font-family: Arial, sans-serif;
    --nav-font-size: 1rem;
    --nav-font-weight: 500;
    --brand-font-size: 1.5rem;
    --brand-font-weight: 700;
}

/* Navbar base */
.custom-navbar {
    background-color: var(--nav-bg) !important;
    border-bottom: 1px solid var(--nav-border);
}

/* Brand */
.brand-link {
    font-family: var(--nav-font-family);
    font-size: var(--brand-font-size);
    font-weight: var(--brand-font-weight);
    color: var(--nav-text) !important;
    text-decoration: none;
}

.brand-link:hover,
.brand-link:focus {
    color: var(--nav-hover-text) !important;
    text-decoration: none;
    outline: none;
}

/* Top-level links */
.custom-navbar .nav-link {
    font-family: var(--nav-font-family);
    font-size: var(--nav-font-size);
    font-weight: var(--nav-font-weight);
    color: var(--nav-text-dim) !important;
    border-radius: 6px;
    padding: 0.375rem 0.75rem;
    margin: 0 0.15rem;
}

.custom-navbar .nav-link:hover,
.custom-navbar .nav-link:focus {
    color: var(--nav-hover-text) !important;
    background: rgba(255,255,255,0.05);
    text-decoration: none;
}

/* Active links */
.custom-navbar .nav-link.active,
.custom-navbar .dropdown-item.active {
    color: var(--nav-active-text) !important;
    background-color: var(--nav-active-bg) !important;
}

/* Dropdown menu base */
.custom-navbar .dropdown-menu {
    background-color: var(--nav-bg);
    border: 1px solid var(--nav-border);
    min-width: 12rem;
}

/* Dropdown items */
.custom-navbar .dropdown-item {
    color: var(--nav-text) !important;
    font-family: var(--nav-font-family);
    font-size: calc(var(--nav-font-size) * 0.98);
}

.custom-navbar .dropdown-item:hover,
.custom-navbar .dropdown-item:focus {
    color: var(--nav-hover-text) !important;
    background: rgba(255,255,255,0.05);
}

/* Submenu positioning */
.dropdown-submenu {
    position: relative;
}

.dropdown-submenu > .dropdown-menu {
    top: 0;
    left: 100%;
    margin-left: 0.1rem;
    position: absolute;
    z-index: 2000;
}

/* Submenu indicator */
.dropdown-submenu > .dropdown-toggle::after {
    content: "▶";
    float: right;
    font-size: 0.7em;
    opacity: 0.6;
    margin-left: 0.5rem;
}

.dropdown-submenu > .dropdown-toggle.active::after {
    opacity: 1;
}

/* Nested items padding */
.dropdown-submenu .dropdown-menu .dropdown-item {
    padding-left: 1rem;
}

/* Responsive adjustments for small screens */
@media (max-width: 991.98px) {
    .dropdown-submenu > .dropdown-menu {
        position: static;
        left: auto;
        top: auto;
        display: none;
        min-width: 100%;
    }

    .dropdown-submenu > .dropdown-menu.show {
        display: block;
    }

    .dropdown-submenu > .dropdown-toggle::after {
        content: "▾";
        float: right;
    }
}

@media (max-width: 767.98px) {
    .brand-link { font-size: 1.25rem; }
    :root { --nav-font-size: 0.95rem; }
}

/* Keep submenu .show consistent */
.dropdown-menu.show {
    display: block;
}