/* ------------------------------------------------------------
   Ollato Eduversity - Navbar CSS
   File: assets/css/includes/navbar.css

   Purpose:
   - Style the main navigation bar
   - Show logo and brand on the left
   - Show navigation links on the right
   - Support links:
     Home, About Us, Services, Experts, Contact Us, Login,
     Give Assessment
   - Remove old language switcher and Contact Now CTA styling
   - Support responsive mobile menu

   Related PHP file:
   includes/navbar.php
------------------------------------------------------------ */


/* ------------------------------------------------------------
   Navbar Base
------------------------------------------------------------ */

.site-navbar {
    position: sticky;
    top: 0;
    z-index: 998;
    width: 100%;
    min-height: var(--navbar-height);
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 2px 14px rgba(15, 35, 65, 0.08);
}

.site-navbar .container {
    position: relative;
}


/* ------------------------------------------------------------
   Navbar Wrapper
------------------------------------------------------------ */

.navbar-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 82px;
    gap: var(--space-6);
}


/* ------------------------------------------------------------
   Navbar Brand / Logo
------------------------------------------------------------ */

.navbar-brand-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    min-width: 0;
    color: var(--color-heading);
    text-decoration: none;
    transition:
        color var(--transition-fast),
        opacity var(--transition-fast);
}

.navbar-brand-link:hover,
.navbar-brand-link:focus {
    color: var(--color-primary);
    text-decoration: none;
    opacity: 0.95;
}

.navbar-brand-link:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 4px;
    border-radius: var(--radius-md);
}

.navbar-logo {
    width: 72px;
    height: 72px;
    flex: 0 0 72px;
    object-fit: contain;
    display: block;
}

.navbar-brand-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
}

.navbar-brand-text {
    color: var(--color-heading);
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    white-space: nowrap;
}

.navbar-brand-tagline {
    margin-top: 3px;
    color: var(--color-text-light);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    white-space: nowrap;
}


/* ------------------------------------------------------------
   Navbar Menu
------------------------------------------------------------ */

.navbar-menu {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    min-width: 0;
    flex: 1 1 auto;
}

.navbar-list {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-1);
    margin: 0;
    padding: 0;
    list-style: none;
}

.navbar-item {
    position: relative;
    margin: 0;
    padding: 0;
}


/* ------------------------------------------------------------
   Navbar Links
------------------------------------------------------------ */

.navbar-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 15px;
    border-radius: var(--radius-full);
    color: var(--color-heading);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    text-decoration: none;
    white-space: nowrap;
    transition:
        color var(--transition-fast),
        background-color var(--transition-fast),
        box-shadow var(--transition-fast),
        transform var(--transition-fast);
}

.navbar-link:hover,
.navbar-link:focus {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
    text-decoration: none;
}

.navbar-link:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 3px;
}

.navbar-link.active,
.navbar-link[aria-current="page"] {
    color: var(--color-primary);
    background-color: rgba(31, 79, 143, 0.09);
}

.navbar-link.active::after,
.navbar-link[aria-current="page"]::after {
    content: "";
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 4px;
    height: 3px;
    border-radius: var(--radius-full);
    background-color: var(--color-primary);
}


/* ------------------------------------------------------------
   Login Link
------------------------------------------------------------ */

.navbar-login-link {
    color: var(--color-primary);
    background-color: rgba(31, 79, 143, 0.08);
}

.navbar-login-link:hover,
.navbar-login-link:focus {
    color: var(--color-white);
    background-color: var(--color-primary);
}


/* ------------------------------------------------------------
   Give Assessment Button Link
------------------------------------------------------------ */

.navbar-assessment-link {
    margin-left: var(--space-2);
    padding-left: 20px;
    padding-right: 20px;
    color: var(--color-white);
    background-color: var(--color-secondary);
    box-shadow: var(--shadow-sm);
}

.navbar-assessment-link:hover,
.navbar-assessment-link:focus {
    color: var(--color-white);
    background-color: var(--color-secondary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.navbar-assessment-link.active,
.navbar-assessment-link[aria-current="page"] {
    color: var(--color-white);
    background-color: var(--color-secondary-dark);
}

.navbar-assessment-link.active::after,
.navbar-assessment-link[aria-current="page"]::after {
    display: none;
}


/* ------------------------------------------------------------
   Mobile Toggle Button
------------------------------------------------------------ */

.navbar-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    width: 46px;
    height: 46px;
    flex: 0 0 46px;
    gap: 6px;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    cursor: pointer;
    transition:
        border-color var(--transition-fast),
        background-color var(--transition-fast),
        box-shadow var(--transition-fast);
}

.navbar-toggle:hover,
.navbar-toggle:focus {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
    box-shadow: var(--shadow-xs);
}

.navbar-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 3px;
}

.navbar-toggle-line {
    display: block;
    width: 22px;
    height: 2px;
    border-radius: var(--radius-full);
    background-color: var(--color-heading);
    transition:
        transform var(--transition-fast),
        opacity var(--transition-fast),
        background-color var(--transition-fast);
}

.navbar-toggle:hover .navbar-toggle-line,
.navbar-toggle:focus .navbar-toggle-line {
    background-color: var(--color-primary);
}

.navbar-toggle.active .navbar-toggle-line:nth-child(1),
.navbar-toggle[aria-expanded="true"] .navbar-toggle-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.navbar-toggle.active .navbar-toggle-line:nth-child(2),
.navbar-toggle[aria-expanded="true"] .navbar-toggle-line:nth-child(2) {
    opacity: 0;
}

.navbar-toggle.active .navbar-toggle-line:nth-child(3),
.navbar-toggle[aria-expanded="true"] .navbar-toggle-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}


/* ------------------------------------------------------------
   Sticky / Scrolled State
------------------------------------------------------------ */

.site-navbar.is-scrolled,
.site-navbar.is-sticky {
    box-shadow: 0 4px 18px rgba(15, 35, 65, 0.12);
}

.site-navbar.is-scrolled .navbar-wrapper,
.site-navbar.is-sticky .navbar-wrapper {
    min-height: 74px;
}

.site-navbar.is-scrolled .navbar-logo,
.site-navbar.is-sticky .navbar-logo {
    width: 64px;
    height: 64px;
    flex-basis: 64px;
}


/* ------------------------------------------------------------
   Bootstrap Compatibility Fixes
------------------------------------------------------------ */

.site-navbar.navbar {
    padding: 0;
}

.site-navbar .navbar-wrapper {
    width: 100%;
}

.site-navbar a {
    text-decoration: none;
}

.site-navbar ul {
    margin-bottom: 0;
}


/* ------------------------------------------------------------
   Responsive - Large Laptop
------------------------------------------------------------ */

@media (max-width: 1199px) {
    .navbar-wrapper {
        gap: var(--space-4);
    }

    .navbar-logo {
        width: 64px;
        height: 64px;
        flex-basis: 64px;
    }

    .navbar-brand-text {
        font-size: var(--font-size-lg);
    }

    .navbar-brand-tagline {
        display: none;
    }

    .navbar-link {
        padding-left: 12px;
        padding-right: 12px;
        font-size: var(--font-size-sm);
    }

    .navbar-assessment-link {
        padding-left: 16px;
        padding-right: 16px;
    }
}


/* ------------------------------------------------------------
   Responsive - Tablet and Mobile Menu
------------------------------------------------------------ */

@media (max-width: 991px) {
    .site-navbar {
        position: sticky;
        top: 0;
    }

    .navbar-wrapper {
        min-height: 76px;
        gap: var(--space-4);
    }

    .navbar-brand-link {
        max-width: calc(100% - 64px);
    }

    .navbar-logo {
        width: 58px;
        height: 58px;
        flex-basis: 58px;
    }

    .navbar-brand-text {
        font-size: var(--font-size-lg);
    }

    .navbar-toggle {
        display: inline-flex;
    }

    .navbar-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        display: none;
        width: 100%;
        padding: var(--space-4);
        border: 1px solid var(--color-border);
        border-top: none;
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        background-color: var(--color-white);
        box-shadow: var(--shadow-md);
    }

    .navbar-menu.active {
        display: block;
        animation: navbarSlideDown 0.22s ease both;
    }

    .navbar-list {
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: var(--space-2);
        width: 100%;
    }

    .navbar-item {
        width: 100%;
    }

    .navbar-link {
        justify-content: flex-start;
        width: 100%;
        min-height: 46px;
        padding: 13px 16px;
        border-radius: var(--radius-md);
    }

    .navbar-link.active::after,
    .navbar-link[aria-current="page"]::after {
        left: auto;
        right: 12px;
        top: 50%;
        bottom: auto;
        width: 6px;
        height: 6px;
        transform: translateY(-50%);
        border-radius: 50%;
    }

    .navbar-login-link {
        margin-top: var(--space-2);
    }

    .navbar-assessment-link {
        margin-left: 0;
        justify-content: center;
        margin-top: var(--space-2);
        border-radius: var(--radius-full);
    }
}


/* ------------------------------------------------------------
   Responsive - Mobile
------------------------------------------------------------ */

@media (max-width: 767px) {
    .navbar-wrapper {
        min-height: 70px;
    }

    .navbar-logo {
        width: 52px;
        height: 52px;
        flex-basis: 52px;
    }

    .navbar-brand-text {
        font-size: var(--font-size-base);
    }

    .navbar-toggle {
        width: 44px;
        height: 44px;
        flex-basis: 44px;
    }

    .navbar-menu {
        padding: var(--space-3);
    }
}


/* ------------------------------------------------------------
   Responsive - Small Mobile
------------------------------------------------------------ */

@media (max-width: 575px) {
    .navbar-wrapper {
        min-height: 66px;
    }

    .navbar-brand-link {
        gap: var(--space-2);
    }

    .navbar-logo {
        width: 46px;
        height: 46px;
        flex-basis: 46px;
    }

    .navbar-brand-content {
        max-width: 185px;
    }

    .navbar-brand-text {
        overflow: hidden;
        font-size: var(--font-size-sm);
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .navbar-menu {
        left: calc(var(--container-padding) * -1);
        right: calc(var(--container-padding) * -1);
        width: auto;
        border-radius: 0 0 var(--radius-md) var(--radius-md);
    }

    .navbar-link {
        font-size: var(--font-size-sm);
    }
}


/* ------------------------------------------------------------
   RTL Language Support
------------------------------------------------------------ */

html[dir="rtl"] .navbar-assessment-link {
    margin-left: 0;
    margin-right: var(--space-2);
}

html[dir="rtl"] .navbar-link.active::after,
html[dir="rtl"] .navbar-link[aria-current="page"]::after {
    left: 18px;
    right: 18px;
}

@media (max-width: 991px) {
    html[dir="rtl"] .navbar-link.active::after,
    html[dir="rtl"] .navbar-link[aria-current="page"]::after {
        left: 12px;
        right: auto;
    }

    html[dir="rtl"] .navbar-assessment-link {
        margin-right: 0;
    }
}


/* ------------------------------------------------------------
   Animation
------------------------------------------------------------ */

@keyframes navbarSlideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* ------------------------------------------------------------
   Reduced Motion
------------------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
    .navbar-menu.active {
        animation: none;
    }

    .navbar-brand-link,
    .navbar-link,
    .navbar-toggle,
    .navbar-toggle-line,
    .navbar-assessment-link {
        transition: none;
    }
}


/* ------------------------------------------------------------
   Print
------------------------------------------------------------ */

@media print {
    .site-navbar {
        display: none !important;
    }
}