/* ==========================================================================
   KTVC THEME – HEADER & FOOTER STYLES
   ========================================================================== */

/* ==========================================================================
   1. SITE HEADER WRAPPER
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    width: 100%;
    transition: box-shadow var(--transition-base), background var(--transition-base);
}

/* Sticky shadow when scrolled */
.site-header.is-sticky .header-main {
    box-shadow: 0 2px 20px rgba(0,0,0,.12);
}

/* ==========================================================================
   2. TOP BAR
   ========================================================================== */
.header-topbar {
    background-color: var(--color-primary-dark);
    color: rgba(255,255,255,.85);
    font-size: var(--text-xs);
    height: var(--header-topbar-height);
    display: flex;
    align-items: center;
}

.header-topbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    height: 100%;
}

/* Contact info (left) */
.topbar-contact {
    display: flex;
    align-items: center;
    gap: var(--space-5);
}

.topbar-contact__item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255,255,255,.85);
    text-decoration: none;
    transition: color var(--transition-fast);
    white-space: nowrap;
}

.topbar-contact__item:hover {
    color: var(--color-secondary);
}

.topbar-contact__item i {
    font-size: 0.7rem;
    color: var(--color-secondary);
}

/* Right side */
.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

/* Quick-action links */
.topbar-links {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.topbar-link {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    color: rgba(255,255,255,.85);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    text-decoration: none;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.topbar-link:hover {
    background: rgba(241,175,9,.15);
    color: var(--color-secondary);
}

.topbar-link i {
    font-size: 0.65rem;
}

/* Social icons */
.topbar-social {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    border-left: 1px solid rgba(255,255,255,.15);
    padding-left: var(--space-5);
}

.topbar-social__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: var(--radius-sm);
    color: rgba(255,255,255,.75);
    font-size: 0.7rem;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.topbar-social__link:hover {
    background: rgba(241,175,9,.2);
    color: var(--color-secondary);
    transform: translateY(-1px);
}

/* ==========================================================================
   3. MAIN HEADER
   ========================================================================== */
.header-main {
    background-color: var(--color-white);
    height: var(--header-main-height);
    display: flex;
    align-items: center;
    border-bottom: 3px solid var(--color-secondary);
    transition: height var(--transition-base);
}

.header-main__inner {
    flex-wrap: wrap;
    min-height: var(--header-main-height);
    height: auto;
    padding-block: 6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    height: 100%;
    width: 100%;
}

/* When sticky, compact the header slightly */
.site-header.is-sticky .header-main {
    height: 68px;
}

/* ==========================================================================
   4. LOGO
   ========================================================================== */
.site-logo {
    flex-shrink: 0;
}

.site-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.site-logo__img {
    height: 60px;
    width: auto;
    object-fit: contain;
    transition: height var(--transition-base);
}

.site-header.is-sticky .site-logo__img {
    height: 48px;
}

/* Footer logo (lighter bg) */
.footer-logo .site-logo__img {
    height: 64px;
    filter: brightness(0) invert(1); /* Make logo white on dark bg */
}

/* ==========================================================================
   5. PRIMARY NAVIGATION
   ========================================================================== */
.primary-nav {
    flex: 1;
    min-width: 0;
    display: flex;
    justify-content: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Nav item */
.nav-item {
    position: relative;
}

/* Nav link */
.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-3);
    min-height: 48px;
    height: auto;
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: var(--font-semi);
    color: var(--color-heading);
    text-decoration: none;
    white-space: nowrap;
    transition: color var(--transition-fast);
    position: relative;
}

/* Active underline animation */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--space-4);
    right: var(--space-4);
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--transition-base);
    border-radius: var(--radius-full) var(--radius-full) 0 0;
}

.nav-link:hover,
.nav-item.is-active > .nav-link,
.nav-item.current-menu-item > .nav-link,
.nav-item.current-menu-ancestor > .nav-link {
    color: var(--color-primary);
}

.nav-link:hover::after,
.nav-item.current-menu-item > .nav-link::after,
.nav-item.current-menu-ancestor > .nav-link::after {
    transform: scaleX(1);
}

/* When sticky, reduce nav-link height */
.site-header.is-sticky .nav-link {
    height: 68px;
}

/* Dropdown chevron */
.nav-link__arrow {
    font-size: 0.6rem;
    transition: transform var(--transition-fast);
}

.nav-item.is-active > .nav-link .nav-link__arrow {
    transform: rotate(180deg);
}

/* ==========================================================================
   6. DROPDOWN MENUS
   ========================================================================== */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-white);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border-top: 3px solid var(--color-primary);
    list-style: none;
    padding: var(--space-3) 0;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity var(--transition-base),
                visibility var(--transition-base),
                transform var(--transition-base);
    z-index: var(--z-dropdown);
}

.nav-dropdown.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown .nav-item {
    display: block;
}

.nav-dropdown .nav-link {
    height: auto;
    padding: 0.6rem 1.25rem;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: all var(--transition-fast);
}

.nav-dropdown .nav-link::after {
    display: none;
}

.nav-dropdown .nav-link::before {
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-secondary);
    flex-shrink: 0;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.nav-dropdown .nav-link:hover {
    background: var(--color-off-white);
    color: var(--color-primary);
    padding-left: 1.5rem;
}

.nav-dropdown .nav-link:hover::before {
    opacity: 1;
}

.nav-dropdown .nav-link:hover::after {
    display: none;
}

/* Separator line between groups */
.nav-dropdown .menu-item-type-custom:first-child {
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--space-2);
    padding-bottom: var(--space-2);
}

/* ==========================================================================
   7. HEADER ACTIONS (search toggle + CTA + hamburger)
   ========================================================================== */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

/* Search toggle button */
.header-search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    color: var(--color-text);
    background: var(--color-light-gray);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

.header-search-toggle:hover,
.header-search-toggle[aria-expanded="true"] {
    background: var(--color-primary);
    color: var(--color-white);
}

/* CTA button */
.header-cta {
    /* Uses .btn .btn-secondary from style.css */
}

/* ==========================================================================
   8. HAMBURGER / MOBILE TOGGLE
   ========================================================================== */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: transparent;
    border: 2px solid var(--color-primary);
    cursor: pointer;
    padding: 0;
    transition: background var(--transition-fast);
}

.nav-toggle:hover {
    background: var(--color-primary);
}

.nav-toggle:hover .nav-toggle__bar {
    background: var(--color-white);
}

.nav-toggle__bar {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    transform-origin: center;
}

/* Animate to X when open */
[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   9. EXPANDABLE SEARCH BAR
   ========================================================================== */
.header-search {
    background: var(--color-off-white);
    border-top: 1px solid var(--border-color);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), padding var(--transition-slow);
    position: relative;
}

.header-search.is-open {
    max-height: 90px;
    padding-block: var(--space-4);
}

.header-search .container {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.header-search .search-form {
    flex: 1;
    display: flex;
    gap: var(--space-2);
}

.header-search .search-field {
    flex: 1;
    padding: 0.65rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    outline: none;
    transition: border-color var(--transition-fast);
}

.header-search .search-field:focus {
    border-color: var(--color-primary);
}

.header-search .search-submit {
    padding: 0.65rem 1.5rem;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-weight: var(--font-semi);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.header-search .search-submit:hover {
    background: var(--color-primary-dark);
}

.header-search__close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--color-light-gray);
    color: var(--color-text);
    font-size: var(--text-lg);
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.header-search__close:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ==========================================================================
   10. MOBILE OVERLAY
   ========================================================================== */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: calc(var(--z-sticky) - 1);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.nav-overlay.is-visible {
    opacity: 1;
    visibility: visible;
}

/* ==========================================================================
   11. SITE FOOTER
   ========================================================================== */
.site-footer {
    background: var(--color-dark);
    color: rgba(255,255,255,.8);
    margin-top: auto;
}

/* ==========================================================================
   12. PRE-FOOTER CTA STRIP
   ========================================================================== */
.footer-cta-strip {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding-block: var(--space-12);
    position: relative;
    overflow: hidden;
}

/* Subtle pattern overlay */
.footer-cta-strip::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 80% 50%, rgba(241,175,9,.12) 0%, transparent 60%);
    pointer-events: none;
}

.footer-cta-strip__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
    position: relative;
    z-index: 1;
}

.footer-cta-strip__title {
    font-size: var(--text-2xl);
    color: var(--color-white);
    margin-bottom: var(--space-2);
}

.footer-cta-strip__desc {
    font-size: var(--text-base);
    color: rgba(255,255,255,.8);
    max-width: 480px;
}

.footer-cta-strip__actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-shrink: 0;
}

/* ==========================================================================
   13. FOOTER MAIN
   ========================================================================== */
.footer-main {
    padding-block: var(--space-16);
}

.footer-main__grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1.4fr;
    gap: var(--space-10);
}

/* Footer column headings */
.footer-col__title {
    font-family: var(--font-heading);
    font-size: var(--text-base);
    font-weight: var(--font-bold);
    color: var(--color-white);
    margin-bottom: var(--space-6);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    position: relative;
    padding-bottom: var(--space-4);
}

.footer-col__title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 36px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
    border-radius: var(--radius-full);
}

/* About text */
.footer-about {
    font-size: var(--text-sm);
    line-height: var(--leading-loose);
    color: rgba(255,255,255,.65);
    margin-bottom: var(--space-5);
}

/* Accreditation badges */
.footer-accreditation {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.footer-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    font-weight: var(--font-semi);
    padding: 0.3rem 0.7rem;
    border-radius: var(--radius-full);
    border: 1px solid rgba(241,175,9,.35);
    color: var(--color-secondary);
    background: rgba(241,175,9,.06);
}

.footer-badge i {
    font-size: 0.65rem;
}

/* Social links in footer */
.footer-social {
    display: flex;
    gap: var(--space-2);
}

.footer-social__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,.08);
    color: rgba(255,255,255,.7);
    font-size: 0.85rem;
    text-decoration: none;
    transition: all var(--transition-fast);
    border: 1px solid rgba(255,255,255,.1);
}

.footer-social__link:hover {
    background: var(--color-secondary);
    color: var(--color-dark);
    border-color: var(--color-secondary);
    transform: translateY(-3px);
}

/* ==========================================================================
   14. FOOTER NAVIGATION LISTS
   ========================================================================== */
.footer-nav {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-nav li a {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255,255,255,.65);
    font-size: var(--text-sm);
    text-decoration: none;
    padding: 0.25rem 0;
    transition: all var(--transition-fast);
}

.footer-nav li a i {
    font-size: 0.55rem;
    color: var(--color-secondary);
    transition: transform var(--transition-fast);
}

.footer-nav li a:hover {
    color: var(--color-secondary);
    padding-left: var(--space-2);
}

.footer-nav li a:hover i {
    transform: translateX(3px);
}

/* ==========================================================================
   15. FOOTER CONTACT LIST
   ========================================================================== */
.footer-contact-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    font-style: normal;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.footer-contact-item__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: rgba(241,175,9,.12);
    color: var(--color-secondary);
    font-size: 0.875rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-contact-item > div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.footer-contact-item strong {
    font-size: var(--text-xs);
    font-weight: var(--font-semi);
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.footer-contact-item span,
.footer-contact-item a {
    font-size: var(--text-sm);
    color: rgba(255,255,255,.65);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-contact-item a:hover {
    color: var(--color-secondary);
}

/* ==========================================================================
   16. FOOTER BOTTOM BAR
   ========================================================================== */
.footer-bottom {
    background: rgba(0,0,0,.3);
    border-top: 1px solid rgba(255,255,255,.08);
    padding-block: var(--space-5);
}

.footer-bottom__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.footer-copyright {
    font-size: var(--text-sm);
    color: rgba(255,255,255,.55);
}

.footer-copyright a {
    color: rgba(255,255,255,.75);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-copyright a:hover {
    color: var(--color-secondary);
}

.footer-legal-links {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.footer-legal-links a {
    font-size: var(--text-xs);
    color: rgba(255,255,255,.5);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-legal-links a:hover {
    color: var(--color-secondary);
}

.footer-legal-links span {
    color: rgba(255,255,255,.25);
    font-size: var(--text-xs);
}

.footer-credit {
    font-size: var(--text-xs);
    color: rgba(255,255,255,.4);
}

.footer-credit a {
    color: rgba(255,255,255,.55);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-credit a:hover {
    color: var(--color-secondary);
}

/* ==========================================================================
   17. RESPONSIVE – TABLET (max 1024px)
   ========================================================================== */
@media (max-width: 1024px) {

    /* Show hamburger, hide desktop nav */
    .nav-toggle {
        display: flex;
    }

    .primary-nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 300px;
        max-width: 85vw;
        height: 100dvh;
        background: var(--color-white);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--space-6);
        padding-top: calc(var(--header-total-height) + var(--space-4));
        overflow-y: auto;
        z-index: var(--z-sticky);
        transition: left var(--transition-slow);
        box-shadow: var(--shadow-xl);
    }

    .primary-nav.is-open {
        left: 0;
    }

    .nav-menu {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        width: 100%;
    }

    .nav-item {
        border-bottom: 1px solid var(--border-color);
    }

    .nav-link {
        height: auto;
        padding: var(--space-4) 0;
        font-size: var(--text-base);
        width: 100%;
        justify-content: space-between;
    }

    .nav-link::after {
        display: none;
    }

    /* Mobile dropdown */
    .nav-dropdown {
        position: static;
        box-shadow: none;
        border-top: none;
        border-left: 3px solid var(--color-secondary);
        border-radius: 0;
        padding: 0 0 0 var(--space-4);
        background: var(--color-off-white);
        max-height: 0;
        overflow: hidden;
        opacity: 1;
        visibility: visible;
        transform: none;
        transition: max-height var(--transition-slow);
    }

    .nav-dropdown.is-open {
        max-height: 500px;
    }

    .nav-dropdown .nav-link {
        padding: var(--space-3) 0;
        border-bottom: 1px solid var(--border-color);
        font-size: var(--text-sm);
    }

    .nav-dropdown .nav-link::before {
        display: none;
    }

    /* Hide topbar links on mobile, keep contact */
    .topbar-links {
        display: none;
    }

    /* Hide header CTA on tablet */
    .header-cta {
        display: none;
    }

    /* Footer grid 2-col */
    .footer-main__grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }

    /* CTA strip stack */
    .footer-cta-strip__inner {
        flex-direction: column;
        text-align: center;
        gap: var(--space-6);
    }

    .footer-cta-strip__desc {
        margin-inline: auto;
    }
}

/* ==========================================================================
   18. RESPONSIVE – MOBILE (max 768px)
   ========================================================================== */
@media (max-width: 768px) {

    /* Topbar: show only one contact item */
    .topbar-contact .topbar-contact__item:last-child {
        display: none;
    }

    .topbar-social {
        padding-left: var(--space-3);
        gap: 0;
    }

    .topbar-social__link {
        width: 24px;
        height: 24px;
        font-size: 0.65rem;
    }

    /* Footer grid 1-col */
    .footer-main__grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .footer-bottom__inner {
        flex-direction: column;
        text-align: center;
        gap: var(--space-3);
    }

    .footer-cta-strip__actions {
        flex-direction: column;
        width: 100%;
    }

    .footer-cta-strip__actions .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ==========================================================================
   19. RESPONSIVE – SMALL MOBILE (max 480px)
   ========================================================================== */
@media (max-width: 480px) {

    /* Hide all topbar contact on very small screens */
    .topbar-contact {
        display: none;
    }

    .header-topbar__inner {
        justify-content: flex-end;
    }

    .topbar-right {
        gap: var(--space-3);
    }
}

/* ==========================================================================
   20. PRINT STYLES
   ========================================================================== */
@media print {
    .site-header,
    .footer-cta-strip,
    .footer-social,
    #back-to-top {
        display: none !important;
    }

    .site-footer {
        background: none;
        color: #000;
        border-top: 2px solid #000;
    }

    .footer-col__title,
    .footer-nav li a,
    .footer-about,
    .footer-copyright {
        color: #000 !important;
    }
}