/* ============================================================
   BERIZAL PORTAL — HEADER & NAVIGATION
   Fixed + Transparent on homepage, white on scroll
   ============================================================ */

/* ---------- Topbar ---------- */
.topbar {
    background: var(--clr-primary-dark);
    color: rgba(255,255,255,0.80);
    height: var(--topbar-height);
    font-size: var(--fs-xs);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: calc(var(--z-sticky) + 2);
    transition: transform 0.3s ease;
}

.topbar--hidden {
    transform: translateY(-100%);
}

.topbar .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-6);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--sp-5);
}

.topbar-link,
.topbar-info {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    color: rgba(255,255,255,0.75);
    transition: color var(--transition);
    white-space: nowrap;
}

.topbar-link:hover {
    color: var(--clr-accent-light);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--sp-5);
}

/* Accessibility Bar */
.accessibility-bar {
    display: flex;
    align-items: center;
    gap: var(--sp-1);
    padding-right: var(--sp-5);
    border-right: 1px solid rgba(255,255,255,0.15);
}

.accessibility-label {
    font-size: var(--fs-xs);
    color: rgba(255,255,255,0.50);
    margin-right: var(--sp-1);
    white-space: nowrap;
}

.btn-a11y {
    background: rgba(255,255,255,0.10);
    color: rgba(255,255,255,0.80);
    border-radius: var(--r-sm);
    padding: 2px 7px;
    font-size: var(--fs-xs);
    font-weight: var(--fw-semi);
    transition: all var(--transition);
    border: 1px solid transparent;
    line-height: 1.6;
    cursor: pointer;
}

.btn-a11y:hover {
    background: var(--clr-accent);
    color: var(--clr-white);
    border-color: var(--clr-accent);
}

/* Social Icons */
.topbar-social {
    display: flex;
    align-items: center;
    gap: var(--sp-1);
}

.social-icon {
    width: 28px;
    height: 28px;
    border-radius: var(--r-sm);
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.75);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-xs);
    transition: all var(--transition);
}

.social-icon:hover {
    background: var(--clr-accent);
    color: var(--clr-white);
    transform: translateY(-2px);
}

/* ---------- Main Header ---------- */
.header {
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background: var(--clr-white);
    box-shadow: 0 2px 8px rgba(12,45,107,0.10);
    transition:
        background var(--dur-slow) var(--ease),
        top 0.3s ease,
        box-shadow var(--transition);
}

/* When topbar is hidden, header moves to top */
.header.header--top {
    top: 0;
}

/* Scrolled state: white bg */
.header.header--scrolled {
    background: var(--clr-white);
    box-shadow: 0 4px 20px rgba(12,45,107,0.18);
}

/* ---------- Transparent Header (homepage only) ---------- */
.page-home .header {
    background: transparent;
    box-shadow: none;
}

.page-home .header.header--scrolled {
    background: var(--clr-white);
    box-shadow: 0 4px 20px rgba(12,45,107,0.18);
}

/* Nav links — transparent mode */
.page-home .header:not(.header--scrolled) .nav-link {
    color: rgba(255,255,255,0.92);
}

.page-home .header:not(.header--scrolled) .nav-link i {
    color: rgba(255,255,255,0.75);
}

.page-home .header:not(.header--scrolled) .nav-link:hover,
.page-home .header:not(.header--scrolled) .nav-link.active {
    color: var(--clr-white);
    background: rgba(255,255,255,0.15);
}

.page-home .header:not(.header--scrolled) .nav-link:hover i,
.page-home .header:not(.header--scrolled) .nav-link.active i {
    color: var(--clr-accent-light);
}

.page-home .header:not(.header--scrolled) .nav-link.active::after {
    background: var(--clr-accent-light);
}

/* Logo — transparent mode */
.page-home .header:not(.header--scrolled) .logo-name {
    color: rgba(255,255,255,0.60);
}

.page-home .header:not(.header--scrolled) .logo-city {
    color: var(--clr-white);
}

.page-home .header:not(.header--scrolled) .logo-state {
    color: rgba(255,255,255,0.85);
}

.page-home .header:not(.header--scrolled) .logo-emblem:not(.logo-emblem--brand) {
    background: rgba(255,255,255,0.18);
    box-shadow: 0 4px 16px rgba(0,0,0,0.25);
}

.page-home .header:not(.header--scrolled) .logo-emblem--brand {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.22);
}

/* Search toggle — transparent mode */
.page-home .header:not(.header--scrolled) .btn-search-toggle {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.35);
    color: var(--clr-white);
}

.page-home .header:not(.header--scrolled) .btn-search-toggle:hover {
    background: var(--clr-accent);
    border-color: var(--clr-accent);
}

/* Hamburger bars — transparent mode */
.page-home .header:not(.header--scrolled) .btn-hamburger {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.30);
}

.page-home .header:not(.header--scrolled) .btn-hamburger .bar {
    background: var(--clr-white);
}

/* Dropdown always white */
.dropdown {
    background: var(--clr-white);
}

/* Inner pages — always account for fixed bar spacing */
body:not(.page-home) {
    padding-top: calc(var(--topbar-height) + var(--header-height));
}

/* ---------- Header Inner ---------- */
.header-inner {
    height: var(--header-height);
    display: flex;
    align-items: center;
    gap: var(--sp-6);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    flex-shrink: 0;
    transition: transform var(--transition), opacity var(--transition);
}

.logo:hover {
    transform: translateY(-1px);
}

.logo-emblem {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-light));
    border-radius: var(--r-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-white);
    font-size: 1.4rem;
    box-shadow: var(--shadow-primary);
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    transition: all var(--transition);
}

.logo-emblem::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 40%, rgba(255,255,255,0.15) 50%, transparent 60%);
    transform: rotate(45deg);
    transition: transform var(--dur-slow) var(--ease);
}

.logo:hover .logo-emblem::after {
    transform: rotate(45deg) translateX(100%);
}

/* Brasão oficial (substitui ícone no .logo-emblem) */
.logo-emblem--brand {
    background: transparent;
    border-radius: var(--r-md);
    box-shadow: none;
    width: 52px;
    height: 52px;
    padding: 3px;
}

.logo-emblem--brand::after {
    display: none;
}

.logo:hover .logo-emblem--brand::after {
    display: none;
}

.logo-emblem__img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.page-home .header.header--scrolled .logo-emblem--brand,
.header--scrolled .logo-emblem--brand {
    background: transparent;
    backdrop-filter: none;
    box-shadow: none;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.logo-name {
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    color: var(--clr-gray);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: color var(--transition);
}

.logo-city {
    font-size: var(--fs-lg);
    font-weight: var(--fw-black);
    color: var(--clr-primary);
    line-height: 1.1;
    transition: color var(--transition);
}

.logo-state {
    font-weight: var(--fw-medium);
    color: var(--clr-accent);
    transition: color var(--transition);
}

/* ---------- Navigation ---------- */
.nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--sp-1);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    padding: var(--sp-2) var(--sp-3);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--clr-gray-dark);
    border-radius: var(--r-md);
    transition: all var(--transition);
    white-space: nowrap;
    position: relative;
}

.nav-link i:first-child {
    font-size: 0.85em;
    color: var(--clr-primary-lighter);
    transition: color var(--transition);
}

.nav-link .nav-arrow {
    font-size: 0.65em;
    margin-left: -2px;
    transition: transform var(--dur-base) var(--ease);
}

.nav-link:hover,
.nav-link.active {
    color: var(--clr-primary);
    background: var(--clr-light);
}

.nav-link:hover i:first-child,
.nav-link.active i:first-child {
    color: var(--clr-accent);
}

.nav-item.has-dropdown:hover .nav-link .nav-arrow,
.nav-item.has-dropdown:focus-within .nav-link .nav-arrow {
    transform: rotate(180deg);
}

/* Active indicator */
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--clr-accent);
    border-radius: var(--r-full);
}

/* Dropdown */
.dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: var(--clr-white);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--clr-border);
    min-width: 230px;
    padding: var(--sp-2);
    opacity: 0;
    visibility: hidden;
    transition:
        opacity var(--dur-base) var(--ease),
        transform var(--dur-base) var(--ease),
        visibility var(--dur-base);
    pointer-events: none;
    z-index: var(--z-dropdown);
}

.dropdown::before {
    content: '';
    position: absolute;
    top: -7px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 14px;
    height: 14px;
    background: var(--clr-white);
    border-top: 1px solid var(--clr-border);
    border-left: 1px solid var(--clr-border);
}

.nav-item.has-dropdown:hover .dropdown,
.nav-item.has-dropdown:focus-within .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

.dropdown li a {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding: var(--sp-3) var(--sp-4);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--clr-gray-dark);
    border-radius: var(--r-md);
    transition: all var(--transition);
}

.dropdown li a i {
    width: 20px;
    text-align: center;
    color: var(--clr-primary-lighter);
    font-size: 0.875rem;
    flex-shrink: 0;
    transition: color var(--transition);
}

.dropdown li a:hover {
    color: var(--clr-primary);
    background: var(--clr-light);
}

.dropdown li a:hover i {
    color: var(--clr-accent);
}

/* ---------- Header Actions ---------- */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    flex-shrink: 0;
}

.btn-search-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--r-full);
    background: var(--clr-light);
    color: var(--clr-primary);
    font-size: var(--fs-base);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    border: 1px solid var(--clr-border);
    cursor: pointer;
}

.btn-search-toggle:hover {
    background: var(--clr-primary);
    color: var(--clr-white);
    border-color: var(--clr-primary);
    transform: scale(1.05);
}

.btn-search-toggle.active {
    background: var(--clr-accent);
    color: var(--clr-white);
    border-color: var(--clr-accent);
}

/* Hamburger Button */
.btn-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    border-radius: var(--r-md);
    padding: 8px;
    background: var(--clr-light);
    border: 1px solid var(--clr-border);
    transition: all var(--transition);
    cursor: pointer;
}

.btn-hamburger .bar {
    display: block;
    height: 2px;
    background: var(--clr-primary);
    border-radius: var(--r-full);
    transition: all var(--dur-base) var(--ease);
    transform-origin: center;
}

.btn-hamburger.open .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.btn-hamburger.open .bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.btn-hamburger.open .bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Search Bar ---------- */
.header-search {
    background: var(--clr-light);
    border-top: 1px solid var(--clr-border);
    overflow: hidden;
    max-height: 0;
    transition: max-height var(--dur-slow) var(--ease);
}

.header-search.open {
    max-height: 80px;
}

.search-form {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding-block: var(--sp-3);
}

.search-input {
    flex: 1;
    height: 44px;
    border: 2px solid var(--clr-border);
    border-radius: var(--r-full);
    padding: 0 var(--sp-5);
    font-size: var(--fs-sm);
    color: var(--clr-dark);
    background: var(--clr-white);
    transition: border-color var(--transition);
    outline: none;
}

.search-input:focus {
    border-color: var(--clr-primary-lighter);
    box-shadow: 0 0 0 3px rgba(42,103,200,0.15);
}

.search-submit {
    height: 44px;
    padding: 0 var(--sp-6);
    background: var(--clr-primary);
    color: var(--clr-white);
    border-radius: var(--r-full);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semi);
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    transition: all var(--transition);
    flex-shrink: 0;
    border: none;
    cursor: pointer;
}

.search-submit:hover {
    background: var(--clr-primary-light);
    transform: translateY(-1px);
}

.search-close-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--clr-white);
    border: 1px solid var(--clr-border);
    color: var(--clr-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-base);
    flex-shrink: 0;
    transition: all var(--transition);
    cursor: pointer;
}

.search-close-btn:hover {
    background: var(--clr-error);
    color: var(--clr-white);
    border-color: var(--clr-error);
}