/* ==========================================================================
   Navigation — Header, Footer, Mobile Menu
   ========================================================================== */

/* ---------- Site Header ---------- */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    height: var(--header-height);
    display: flex;
    align-items: center;
    transition: all var(--transition-base);
}

.site-header.scrolled {
    height: var(--header-height-scrolled);
    background: var(--header-bg-scrolled);
}

/* ---------- Main Nav ---------- */

.main-nav {
    width: 100%;
    height: 100%;
}

/* The wordmark SVG uses fill="currentColor", so it tracks the themed accent
   instead of the raw brand cyan — full-strength #00E5FF only reaches 1.54:1
   on the light theme's white header. */
.site-logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    color: var(--color-cyan);
    transition: opacity var(--transition-fast);
}

.site-logo:hover {
    opacity: 0.8;
}

.site-logo__svg {
    height: 32px;
    width: auto;
}

.main-nav__menu {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.main-nav__item > a {
    font-family: var(--font-label);
    font-size: var(--fs-body-sm);
    font-weight: var(--fw-medium);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-gray-light);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast);
    display: block;
}

.main-nav__item > a:hover,
.main-nav__item.current > a {
    color: var(--color-cyan);
}

/* Dropdown */
.main-nav__item.has-dropdown {
    position: relative;
}

.main-nav__dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-dark2);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-sm) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
}

.main-nav__item.has-dropdown:hover .main-nav__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.main-nav__dropdown li a {
    display: block;
    padding: 8px 20px;
    font-size: var(--fs-body-sm);
    color: var(--color-gray-light);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.main-nav__dropdown li a:hover {
    color: var(--color-cyan);
    background: var(--tint-cyan-weak);
}

/* Nav Actions */
.main-nav__actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* ---------- Hamburger ---------- */

.mobile-menu-toggle {
    display: none;
    width: 32px;
    height: 32px;
    position: relative;
    z-index: calc(var(--z-overlay) + 1);
}

.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 100%;
    height: 100%;
}

.hamburger__line {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger__line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger__line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger__line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Mobile Menu ---------- */

.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: var(--z-overlay);
    pointer-events: none;
    visibility: hidden;
}

.mobile-menu.active {
    pointer-events: all;
    visibility: visible;
}

.mobile-menu__overlay {
    position: absolute;
    inset: 0;
    background: var(--scrim);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.mobile-menu.active .mobile-menu__overlay {
    opacity: 1;
}

.mobile-menu__panel {
    position: absolute;
    top: 0;
    right: 0;
    width: min(380px, 85vw);
    height: 100%;
    background: var(--color-dark);
    border-left: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
}

.mobile-menu.active .mobile-menu__panel {
    transform: translateX(0);
}

.mobile-menu__header {
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
}

.mobile-menu__close {
    color: var(--color-gray-light);
    transition: color var(--transition-fast);
}

.mobile-menu__close:hover {
    color: var(--color-white);
}

.mobile-menu__nav {
    flex: 1;
    padding: var(--space-lg) 0;
}

.mobile-menu__list {
    display: flex;
    flex-direction: column;
}

.mobile-menu__item > a,
.mobile-menu__toggle-sub {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 14px var(--space-xl);
    font-family: var(--font-label);
    font-size: var(--fs-body-lg);
    font-weight: var(--fw-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-white);
    transition: color var(--transition-fast), background var(--transition-fast);
    text-align: left;
}

.mobile-menu__item > a:hover,
.mobile-menu__toggle-sub:hover {
    color: var(--color-cyan);
    background: var(--tint-cyan-weak);
}

.mobile-menu__toggle-sub svg {
    transition: transform var(--transition-fast);
}

.mobile-menu__toggle-sub[aria-expanded="true"] svg {
    transform: rotate(180deg);
}

.mobile-menu__submenu {
    display: none;
    background: var(--color-dark2);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.mobile-menu__submenu.open {
    display: block;
}

.mobile-menu__submenu li a {
    display: block;
    padding: 10px var(--space-xl) 10px calc(var(--space-xl) + 16px);
    font-size: var(--fs-body);
    color: var(--color-gray-light);
    transition: color var(--transition-fast);
}

.mobile-menu__submenu li a:hover {
    color: var(--color-cyan);
}

.mobile-menu__footer {
    padding: var(--space-xl);
    border-top: 1px solid var(--border-subtle);
    flex-shrink: 0;
}

.mobile-menu__contact {
    text-align: center;
}

/* ---------- Footer ---------- */

.footer-main {
    padding: var(--space-4xl) 0 var(--space-3xl);
}

/* Matches .site-logo — the wordmark uses fill="currentColor". */
.footer-logo {
    color: var(--color-cyan);
}

.footer-heading {
    font-family: var(--font-label);
    font-size: var(--fs-body);
    font-weight: var(--fw-bold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    font-size: var(--fs-body-sm);
    color: var(--color-gray);
    transition: color var(--transition-fast);
}

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

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    font-size: var(--fs-body-sm);
    color: var(--color-gray-light);
}

.footer-contact li svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-contact a {
    color: var(--color-gray-light);
    transition: color var(--transition-fast);
}

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

.footer-social__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    color: var(--color-gray);
    transition: all var(--transition-fast);
}

.footer-social__link:hover {
    color: var(--color-cyan);
    border-color: var(--border-cyan);
    background: var(--tint-cyan-weak);
}

.footer-bottom {
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--border-subtle);
    background: var(--color-dark2);
}

.footer-copyright {
    color: var(--color-gray);
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    font-size: var(--fs-body-sm);
    color: var(--color-gray);
    transition: color var(--transition-fast);
}

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

/* ---------- Breadcrumbs ---------- */

.breadcrumbs {
    padding: var(--space-md) 0;
    background: transparent;
}

.breadcrumbs__list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.breadcrumbs__item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--fs-body-sm);
}

.breadcrumbs__item a {
    color: var(--color-gray);
    transition: color var(--transition-fast);
}

.breadcrumbs__item a:hover {
    color: var(--color-cyan);
}

.breadcrumbs__item--current span {
    color: var(--color-gray-light);
}

.breadcrumbs__separator {
    color: var(--color-gray);
    display: flex;
}

/* ---------- WhatsApp Float ---------- */

.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    background: var(--brand-whatsapp);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
    z-index: var(--z-sticky);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}

/* ---------- Skip Link ---------- */

.skip-link:focus {
    position: fixed;
    top: 8px;
    left: 8px;
    z-index: var(--z-max);
    padding: 8px 16px;
    background: var(--color-cyan);
    color: var(--ink-on-cyan);
    font-weight: var(--fw-bold);
    border-radius: var(--radius-sm);
    clip: auto;
    width: auto;
    height: auto;
}