/**
 * iLearnZed — Public (logged-out) navbar polish
 * Scoped to .ilearnzed-navbar--public only — does not affect authenticated nav.
 */

/* === NAVBAR BASE === */
.ilearnzed-navbar--public {
    --nav-public-height: 64px;
    --nav-public-brand: #1a5c2a;
    --nav-public-brand-dark: #1a3d1f;
    --nav-public-link: #555555;
    --nav-public-link-hover-bg: #f5f7f5;
    --nav-public-active-bg: #f0f7f0;
    --nav-public-active-text: #1a5c2a;
    --nav-public-border: rgba(0, 0, 0, 0.08);

    position: sticky;
    top: 0;
    z-index: 1000;
    min-height: var(--nav-public-height);
    padding: 0;
    background: #ffffff;
    border-bottom: 1px solid var(--nav-public-border);
    box-shadow: none;
}

.ilearnzed-navbar--public .container {
    min-height: var(--nav-public-height);
    padding-left: 28px;
    padding-right: 28px;
    display: flex;
    align-items: center;
}

.ilearnzed-navbar--public.scrolled {
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

/* === LOGO === */
.ilearnzed-navbar--public .navbar-brand--public {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-right: 32px;
    padding: 0;
    text-decoration: none;
}

.ilearnzed-navbar--public .navbar-brand--public:hover,
.ilearnzed-navbar--public .navbar-brand--public:focus-visible {
    text-decoration: none;
    opacity: 0.92;
}

.ilearnzed-navbar--public .navbar-brand-logo {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    object-fit: contain;
    display: block;
    flex-shrink: 0;
}

.ilearnzed-navbar--public .navbar-brand-text {
    font-size: 15px;
    font-weight: 600;
    color: var(--nav-public-brand-dark);
    line-height: 1.2;
    white-space: nowrap;
}

.ilearnzed-navbar--public .mobile-logo-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.ilearnzed-navbar--public .mobile-logo-image {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    object-fit: contain;
}

.ilearnzed-navbar--public .mobile-logo-text {
    font-size: 15px;
    font-weight: 600;
    color: var(--nav-public-brand-dark);
}

/* === NAV LINKS === */
.ilearnzed-navbar--public .navbar-public-desktop-nav {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
    margin-left: 0;
}

.ilearnzed-navbar--public .navbar-public-primary-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    margin: 0;
    padding: 0;
    list-style: none;
}

.ilearnzed-navbar--public .navbar-public-primary-nav .nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.25;
    color: var(--nav-public-link);
    text-decoration: none;
    border-radius: 8px;
    border: none;
    background: transparent;
    white-space: nowrap;
    min-height: 44px;
    box-sizing: border-box;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.ilearnzed-navbar--public .navbar-public-primary-nav .nav-link i {
    font-size: 16px;
    width: 16px;
    min-width: 16px;
    margin: 0;
    color: #888888;
    transition: color 0.15s ease;
}

.ilearnzed-navbar--public .navbar-public-primary-nav .nav-link:hover,
.ilearnzed-navbar--public .navbar-public-primary-nav .nav-link:focus-visible {
    background-color: var(--nav-public-link-hover-bg);
    color: var(--nav-public-brand-dark);
    outline: none;
    transform: none;
    border: none;
}

.ilearnzed-navbar--public .navbar-public-primary-nav .nav-link:hover i,
.ilearnzed-navbar--public .navbar-public-primary-nav .nav-link:focus-visible i {
    color: var(--nav-public-brand-dark);
}

/* === ACTIVE STATE === */
.ilearnzed-navbar--public .navbar-public-primary-nav .nav-link.active {
    background-color: var(--nav-public-active-bg);
    color: var(--nav-public-active-text);
    font-weight: 500;
    border: none;
    border-radius: 8px;
}

.ilearnzed-navbar--public .navbar-public-primary-nav .nav-link.active i {
    color: var(--nav-public-active-text);
}

/* === AUTH BUTTONS === */
.ilearnzed-navbar--public .navbar-public-actions-nav {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
    flex-shrink: 0;
}

.ilearnzed-navbar--public .nav-auth-login {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    min-height: 44px;
    font-size: 14px;
    font-weight: 400;
    color: #333333;
    background: transparent;
    border: 0.5px solid rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    text-decoration: none;
    transition: background-color 0.15s ease;
    box-sizing: border-box;
}

.ilearnzed-navbar--public .nav-auth-login i {
    font-size: 16px;
    color: #888888;
    margin: 0;
}

.ilearnzed-navbar--public .nav-auth-login:hover,
.ilearnzed-navbar--public .nav-auth-login:focus-visible {
    background-color: #f5f5f5;
    color: #333333;
    text-decoration: none;
}

.ilearnzed-navbar--public .nav-auth-signup {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 20px;
    min-height: 44px;
    font-size: 14px;
    font-weight: 500;
    color: #ffffff;
    background: var(--nav-public-brand);
    border: none;
    border-radius: 8px;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color 0.15s ease, transform 0.1s ease;
    box-sizing: border-box;
}

.ilearnzed-navbar--public .nav-auth-signup i {
    font-size: 16px;
    color: #ffffff;
    margin: 0;
}

.ilearnzed-navbar--public .nav-auth-signup:hover,
.ilearnzed-navbar--public .nav-auth-signup:focus-visible {
    background-color: #14461f;
    color: #ffffff;
    text-decoration: none;
}

.ilearnzed-navbar--public .nav-auth-signup:active {
    background-color: #0f3318;
    transform: scale(0.99);
}

/* === MOBILE HEADER BAR === */
.ilearnzed-navbar--public .navbar-public-mobile-bar {
    width: 100%;
    gap: 8px;
}

.ilearnzed-navbar--public .navbar-public-mobile-bar #mobile-menu-toggle {
    margin-left: auto;
}

.ilearnzed-navbar--public .navbar-public-mobile-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.ilearnzed-navbar--public .navbar-public-mobile-actions .nav-auth-login {
    padding: 8px 12px;
}

.ilearnzed-navbar--public .navbar-public-mobile-actions .nav-auth-signup {
    padding: 9px 14px;
    font-size: 13px;
}

/* === MOBILE HAMBURGER === */
.ilearnzed-navbar--public #mobile-menu-toggle {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
    border-radius: 8px;
    background: transparent;
    color: var(--nav-public-brand-dark);
    border: 0.5px solid rgba(0, 0, 0, 0.12);
    box-shadow: none;
}

.ilearnzed-navbar--public #mobile-menu-toggle:hover {
    background: var(--nav-public-link-hover-bg);
    transform: none;
}

.ilearnzed-navbar--public #mobile-menu-toggle .hamburger-line-1,
.ilearnzed-navbar--public #mobile-menu-toggle .hamburger-line-2,
.ilearnzed-navbar--public #mobile-menu-toggle .hamburger-line-3 {
    background-color: var(--nav-public-brand-dark);
}

/* === ACCESSIBILITY — FOCUS === */
.ilearnzed-navbar--public a:focus-visible,
.ilearnzed-navbar--public button:focus-visible {
    outline: 2px solid var(--nav-public-brand);
    outline-offset: 2px;
}

/* === RESPONSIVE — tablet (collapse desktop links) === */
@media (max-width: 767.98px) {
    .ilearnzed-navbar--public .navbar-public-desktop-nav {
        display: none;
    }

    .ilearnzed-navbar--public .container {
        padding-left: 16px;
        padding-right: 16px;
    }
}

@media (min-width: 768px) {
    .ilearnzed-navbar--public .navbar-public-mobile-bar {
        display: none;
    }
}

/* === RESPONSIVE — mobile (login icon-only) === */
@media (max-width: 479.98px) {
    .ilearnzed-navbar--public .navbar-public-mobile-actions .nav-auth-login-text {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    .ilearnzed-navbar--public .navbar-public-mobile-actions .nav-auth-login {
        padding: 8px 10px;
    }
}

/* Body offset when public sticky nav (overrides fixed-nav padding for guests on small screens) */
@media (max-width: 767.98px) {
    body.navbar-public-guest {
        padding-top: calc(64px + env(safe-area-inset-top, 0)) !important;
    }

    body.navbar-public-guest .desktop-navbar-spacer {
        display: none;
        height: 0;
    }
}

@media (min-width: 768px) {
    body.navbar-public-guest .desktop-navbar-spacer {
        height: 64px;
        flex: 0 0 64px;
    }
}