/*
 * Legacy header visual parity overrides.
 * Scope: the legacy header rendered by developer/gora1.php.
 * Goal: mirror the migrated header presentation without changing legacy logic.
 */

:root {
    --uczelnie-header-main-h: 76px;
}

.header-main {
    color: #fff;
    background-color: #0d537e;
    background-size: 400% 400%;
    min-height: var(--uczelnie-header-main-h);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    z-index: 1100;
}

.header-main .navbar {
    min-height: var(--uczelnie-header-main-h);
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.header-main .navbar-brand {
    margin-right: 1.5rem;
    padding-top: 0;
    padding-bottom: 0;
}

.header-main .navbar-brand img,
.header-main .navbar-brand img.img-fluid {
    max-width: 200px !important;
    height: auto;
}

.header-main .navbar-toggler,
.header-main .navbar-nav > .nav-item > .nav-link {
    -webkit-tap-highlight-color: transparent;
}

.header-main .navbar-toggler {
    box-shadow: none;
    border: 0;
    padding: 0.45rem;
    border-radius: 0.5rem;
    background: rgba(255, 255, 255, 0.08);
    transition: background-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.header-main .navbar-toggler:hover,
.header-main .navbar-toggler:focus-visible {
    background-color: rgba(255, 255, 255, 0.14);
}

.header-main .navbar-toggler:focus,
.header-main .navbar-toggler:focus-visible,
.header-main .navbar-toggler:active {
    box-shadow: none;
    outline: 0;
}

.header-main .navbar-toggler.is-pressed {
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.22);
}

.header-main .navbar-nav.white-link > li > a,
.header-main .navbar-nav > .nav-item > .nav-link,
.header-main .header-searchbar a,
.header-main .header-social-icon a {
    color: #fff !important;
}

.header-main .navbar-nav > .nav-item > .nav-link {
    position: relative;
    padding: 0.5rem 0.85rem;
    border-radius: 4px;
    transition: background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

.header-main .navbar-nav > .nav-item > .nav-link::after {
    content: "";
    position: absolute;
    left: 8px;
    right: 8px;
    bottom: 4px;
    height: 2px;
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.95);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.18s ease;
}

.header-main .navbar-collapse .navbar-nav .dropdown-toggle {
    padding-right: 1.15rem;
}

.header-main .navbar-collapse .navbar-nav .dropdown-toggle::before {
    content: "";
    position: absolute;
    display: inline-block;
    right: 0.32rem;
    top: 50%;
    width: 0.42rem;
    height: 0.42rem;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    border-top: 0;
    border-left: 0;
    background: none;
    opacity: 0.95;
    transform: translateY(-62%) rotate(45deg);
    transform-origin: center;
    transition: transform 0.18s ease, opacity 0.18s ease;
}

.header-main .navbar-nav > .nav-item > .nav-link:focus-visible,
.header-main .navbar-nav > .nav-item.show > .nav-link,
.header-main .navbar-nav > .nav-item > .nav-link[aria-expanded="true"],
.header-main .navbar-nav > .nav-item.active > .nav-link,
.header-main .navbar-nav > .nav-item.current > .nav-link {
    color: #fff !important;
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 -2px 0 rgba(255, 255, 255, 0.55);
}

.header-main .navbar-nav > .nav-item > .nav-link:focus-visible::after,
.header-main .navbar-nav > .nav-item.show > .nav-link::after,
.header-main .navbar-nav > .nav-item > .nav-link[aria-expanded="true"]::after,
.header-main .navbar-nav > .nav-item.active > .nav-link::after,
.header-main .navbar-nav > .nav-item.current > .nav-link::after {
    transform: scaleX(1);
}

.header-main .navbar-collapse .navbar-nav .dropdown-toggle:focus-visible::before,
.header-main .navbar-collapse .navbar-nav .dropdown-toggle[aria-expanded="true"]::before,
.header-main .navbar-nav > .nav-item.show > .nav-link.dropdown-toggle::before {
    opacity: 1;
}

.header-main .navbar-collapse .navbar-nav .dropdown-toggle[aria-expanded="true"]::before,
.header-main .navbar-nav > .nav-item.show > .nav-link.dropdown-toggle::before {
    transform: translateY(-38%) rotate(-135deg);
}

@media (hover: hover) and (pointer: fine) {
    .header-main .navbar-nav > .nav-item > .nav-link:hover {
        color: #fff !important;
        background-color: rgba(255, 255, 255, 0.1);
        box-shadow: inset 0 -2px 0 rgba(255, 255, 255, 0.55);
    }

    .header-main .navbar-nav > .nav-item > .nav-link:hover::after {
        transform: scaleX(1);
    }

    .header-main .navbar-collapse .navbar-nav .dropdown-toggle:hover::before {
        opacity: 1;
    }
}

.header-main .dropdown-menu .dropdown-item {
    color: #10486a;
}

ul.social-icon-navbar {
    display: flex;
    align-items: center;
    padding-left: 0;
    margin-top: 1px;
    margin-bottom: 0;
    list-style: none;
}

ul.social-icon-navbar li {
    height: 24px;
    padding: 6px;
    margin: 5px;
}

ul.social-icon-navbar li a {
    color: #000;
}

ul.social-icon-navbar li a:hover {
    text-decoration: none;
}

ul.social-icon-navbar i,
ul.social-icon-navbar span {
    background: #fff;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
}

.navbar .megamenu {
    padding: 1rem;
    background-color: rgba(255, 255, 255, 0.8);
}

.navbar .dropdown-menu {
    background-color: rgba(255, 255, 255, 0.8);
}

@media (min-width: 992px) {
    .navbar .has-megamenu {
        position: static !important;
    }

    .navbar .megamenu {
        left: 0;
        right: 0;
        width: 100%;
        margin-top: 0;
    }

    .dropdown-menu.megamenu .col-megamenu .title {
        margin-bottom: 0.5rem;
        min-height: 1.75rem;
        display: flex;
        align-items: center;
        font-weight: 600;
    }

    .dropdown-menu.megamenu .title.empty-title {
        display: block !important;
        visibility: hidden;
        margin-bottom: 0.5rem;
        min-height: 1.75rem;
        align-items: center;
    }

    .dropdown-menu.megamenu .row > .col-lg-3:nth-child(4) > .title.empty-title {
        display: block !important;
        visibility: hidden;
        margin-bottom: 0.5rem;
        min-height: 1.75rem;
        align-items: center;
    }

    .dropdown-menu.megamenu .nav-link {
        display: block;
        padding: 0.25rem 0.5rem;
        border-radius: 4px;
        transition: background-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
        transform-origin: left center;
        color: inherit;
        text-decoration: none;
    }

    .dropdown-menu.megamenu .nav-link:hover,
    .dropdown-menu.megamenu .nav-link:focus-visible {
        background-color: rgba(13, 83, 126, 0.08);
        color: #0d537e;
        transform: translateX(2px) scale(1.02);
    }

    .dropdown-menu.megamenu .nav-link:active {
        transform: translateX(1px) scale(0.99);
    }

    .dropdown-menu.megamenu .megamenu-close-btn {
        position: absolute;
        top: 0.75rem;
        right: 0.75rem;
        width: 32px;
        height: 32px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0;
        margin: 0;
        background: transparent;
        border: none;
        color: #333333;
        cursor: pointer;
        transition: color 0.18s ease, transform 0.18s ease, opacity 0.18s ease;
        opacity: 0.9;
    }

    .dropdown-menu.megamenu .megamenu-close-btn:hover,
    .dropdown-menu.megamenu .megamenu-close-btn:focus-visible {
        color: #0d537e;
        transform: scale(1.05);
        opacity: 1;
    }

    .dropdown-menu.megamenu .megamenu-close-btn:active {
        transform: scale(0.95);
    }

    .dropdown-menu.megamenu .megamenu-close-btn svg {
        width: 20px;
        height: 20px;
    }
}

.navbar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 1040;
}

.navbar-overlay.show {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 991px) {
    :root {
        --uczelnie-header-main-h: 68px;
    }

    .header-main .navbar {
        min-height: var(--uczelnie-header-main-h);
        padding: 0.5rem 0.75rem !important;
    }

    .header-main .navbar-brand {
        max-width: 180px !important;
        padding: 0;
    }

    .header-main .navbar-brand img,
    .header-main .navbar-brand img.img-fluid {
        max-width: 180px !important;
    }

    .header-main .navbar-brand .d-none.d-md-block {
        display: block !important;
    }

    .header-main .navbar-brand .d-block.d-md-none {
        display: none !important;
    }

    .header-main .navbar-toggler {
        width: auto !important;
        height: auto !important;
        padding: 0.45rem !important;
        border: 0 !important;
        background-color: rgba(255, 255, 255, 0.08) !important;
        transform: none !important;
    }

    .header-main .navbar-toggler-icon {
        width: 1.5rem;
        height: 1.5rem;
        background-size: 1.5rem;
    }

    .navbar.fixed-top .navbar-collapse,
    .navbar.sticky-top .navbar-collapse,
    .header-main .navbar-collapse {
        position: fixed !important;
        top: var(--uczelnie-header-main-h) !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        width: 100% !important;
        margin-top: 0 !important;
        padding: 0.75rem 0.75rem 1rem !important;
        overflow-y: auto !important;
        max-height: calc(100vh - var(--uczelnie-header-main-h)) !important;
        overscroll-behavior: contain;
        z-index: 1050;
        background: #0d537e !important;
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.24) !important;
        transform: none !important;
        border-radius: 0 !important;
    }

    .header-main .navbar-collapse .row {
        margin: 0 !important;
        width: 100%;
    }

    .header-main .navbar-collapse .row > .col-12 {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    .header-main .navbar-collapse .row .col-12.d-flex {
        justify-content: center !important;
    }

    .header-main .navbar-collapse .row .col-12.d-flex .navbar-nav.white-link {
        display: flex !important;
        justify-content: center !important;
    }

    .header-main .social-icon-navbar {
        justify-content: center !important;
        margin-bottom: 0.75rem !important;
        padding-bottom: 0.75rem !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
        width: 100% !important;
    }

    .header-main .social-icon-navbar::before,
    .header-main .social-icon-navbar::after {
        display: none !important;
    }

    .header-main .social-icon-navbar li {
        height: 24px !important;
        margin: 5px !important;
        padding: 6px 1px !important;
    }

    .header-main .social-icon-navbar li a {
        width: auto !important;
        height: auto !important;
        border-radius: 0 !important;
        padding: 0 !important;
        background: transparent !important;
        transform: none !important;
        box-shadow: none !important;
    }

    .header-main .social-icon-navbar li a span {
        font-size: inherit !important;
    }

    .header-main .navbar-collapse .navbar-nav {
        display: block !important;
        width: 100% !important;
        padding-top: 0 !important;
        gap: 0 !important;
    }

    .header-main .navbar-collapse .navbar-nav .nav-item {
        width: 100% !important;
        max-width: 100% !important;
        flex: 0 0 100% !important;
        margin-bottom: 0 !important;
        float: none !important;
    }

    .header-main .navbar-collapse .navbar-nav .nav-link {
        display: block;
        padding: 0.75rem 0.9rem !important;
        font-size: 1rem !important;
        font-weight: 500;
        line-height: 1.35;
        border-radius: 0.5rem;
        transform: none !important;
    }

    .header-main .navbar-nav .nav-link:hover,
    .header-main .navbar-nav .nav-link:focus {
        transform: none !important;
    }

    .header-main .navbar-collapse .navbar-nav .dropdown-menu,
    .header-main .navbar-collapse .navbar-nav .megamenu {
        position: static !important;
        float: none;
        left: auto !important;
        right: auto !important;
        top: auto !important;
        bottom: auto !important;
        width: 100% !important;
        max-width: 100% !important;
        margin: 0.35rem 0 0 !important;
        padding: 0.5rem 0 0.75rem !important;
        border: 0 !important;
        border-radius: 0.5rem !important;
        background: rgba(7, 44, 69, 0.92) !important;
        box-shadow: none !important;
        transform: none !important;
        max-height: none !important;
        overflow: visible !important;
    }

    .header-main .navbar-collapse .navbar-nav .dropdown-menu:not(.show),
    .header-main .navbar-collapse .navbar-nav .megamenu:not(.show) {
        display: none;
    }

    .header-main .navbar-collapse .navbar-nav .dropdown-menu.show,
    .header-main .navbar-collapse .navbar-nav .megamenu.show {
        display: block;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu.show {
        overflow-y: auto !important;
    }

    .header-main .navbar-collapse .navbar-nav .dropdown-item,
    .header-main .navbar-collapse .navbar-nav .megamenu .nav-link {
        color: #fff !important;
        text-decoration: none !important;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu .title {
        margin-bottom: 0.35rem;
        padding: 0 1.5rem;
        font-size: 1.5rem;
        line-height: 1.2;
        font-weight: 600;
        color: #ababab;
        opacity: 1;
    }

    .header-main .navbar-collapse .navbar-nav .dropdown-item,
    .header-main .navbar-collapse .navbar-nav .megamenu .nav-link {
        padding: 0.5rem 0.75rem !important;
        white-space: normal;
    }

    .header-main .navbar-collapse .navbar-nav .dropdown-item:hover,
    .header-main .navbar-collapse .navbar-nav .dropdown-item:focus,
    .header-main .navbar-collapse .navbar-nav .megamenu .nav-link:hover,
    .header-main .navbar-collapse .navbar-nav .megamenu .nav-link:focus-visible {
        background-color: rgba(255, 255, 255, 0.15) !important;
        color: #fff !important;
        transform: none !important;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu .container-lg {
        padding-left: 0 !important;
        padding-right: 0 !important;
        padding-top: 0 !important;
        padding-bottom: 0 !important;
        width: 100% !important;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu .row {
        display: flex !important;
        flex-direction: column !important;
        --bs-gutter-x: 0.5rem;
        --bs-gutter-y: 0.5rem;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu .row [class*="col-"],
    .header-main .navbar-collapse .navbar-nav .megamenu .row .col-6,
    .header-main .navbar-collapse .navbar-nav .megamenu .row .col-lg-3 {
        width: 100% !important;
        max-width: 100% !important;
        flex: 0 0 100% !important;
        order: initial !important;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu .row .col-lg-3:nth-child(1) {
        order: 3 !important;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu .row .col-lg-3:nth-child(2) {
        order: 4 !important;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu .row .col-lg-3:nth-child(3) {
        order: 1 !important;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu .row .col-lg-3:nth-child(4) {
        order: 2 !important;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu .col-megamenu {
        width: 100% !important;
        margin-bottom: 0;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu .nav {
        display: block !important;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu .nav-item {
        width: 100% !important;
        max-width: 100% !important;
        flex: 0 0 100% !important;
    }

    .header-main .navbar-collapse .navbar-nav .megamenu .title.empty-title,
    .header-main .navbar-collapse .navbar-nav .megamenu .megamenu-close-btn {
        display: none !important;
    }
}

@media (max-width: 575px) {
    .header-main .navbar {
        min-height: 65px;
        padding: 0.5rem 0.75rem !important;
    }

    .header-main .navbar-brand,
    .header-main .navbar-brand img,
    .header-main .navbar-brand img.img-fluid {
        max-width: 160px !important;
    }

    .header-main .navbar-collapse .navbar-nav .nav-link {
        padding: 0.75rem !important;
        font-size: 0.95rem !important;
    }

    .navbar.fixed-top .navbar-collapse,
    .navbar.sticky-top .navbar-collapse,
    .header-main .navbar-collapse {
        top: 65px !important;
        max-height: calc(100vh - 65px) !important;
        padding: 0.65rem 0.65rem 0.9rem !important;
    }
}

@media (min-width: 992px) {
    .header-main .navbar-collapse .navbar-nav .dropdown-toggle::after {
        display: block !important;
        margin-left: 0;
        vertical-align: 0;
        border: 0;
    }
}

/*
 * Fine-tuning after visual comparison with the migrated header:
 * slimmer top-nav button widths, a single underline treatment, and a lighter megamenu panel.
 */
.header-main .navbar-nav > .nav-item > .nav-link {
    padding: 0.5rem 0.74rem;
    text-decoration: none;
}

.header-main .navbar-nav > .nav-item > .nav-link::after {
    bottom: 3px;
    height: 3px;
    z-index: 1;
}

.header-main .navbar-collapse .navbar-nav .dropdown-toggle {
    padding-right: 1.22rem;
}

.header-main .navbar-collapse .navbar-nav .dropdown-toggle::before {
    right: 0.38rem;
}

.navbar .dropdown-menu {
    background-color: rgba(255, 255, 255, 0.86);
}

.navbar .megamenu {
    background-color: rgba(255, 255, 255, 0.86);
}