/* ==========================================================
   TAPPITRACK — TOP BAR, HEADER AND NAVIGATION
   Shared by every page. Markup: components/site-header.html
   White sticky header with the colour logo on every page.
   ========================================================== */

:root {
    --tt-topbar-height: 40px;
}

/* ---------- Top bar ---------- */

.top-bar {
    position: relative;
    z-index: 1001;
    color: rgba(255, 255, 255, 0.9);
    background: var(--tt-blue);
    font-size: 13px;
}

.top-bar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: var(--tt-topbar-height);
}

.top-bar-contact,
.top-bar-links {
    display: flex;
    align-items: center;
    gap: 22px;
}

.top-bar a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: inherit;
    text-decoration: none;
    transition: color 160ms ease;
}

.top-bar a:hover {
    color: var(--tt-white);
}

.top-bar svg {
    width: 15px;
    height: 15px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.top-bar-location {
    padding-left: 22px;
    border-left: 1px solid rgba(255, 255, 255, 0.3);
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    color: var(--tt-dark);
    background: var(--tt-white);
    border-bottom: 1px solid var(--tt-border);
    transition:
        background-color 220ms ease,
        border-color 220ms ease,
        box-shadow 220ms ease;
}

.site-header.is-scrolled {
    box-shadow: 0 8px 24px rgba(16, 42, 67, 0.08);
}

.main-nav-inner {
    display: flex;
    align-items: center;
    gap: 28px;
    min-height: var(--tt-header-height);
}

.brand-logo {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
}

.brand-logo img {
    display: block;
    width: 168px;
    height: auto;
}

/* ---------- Desktop navigation ---------- */

.desktop-navigation {
    flex: 1 1 auto;
    min-width: 0;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: 44px;
    padding: 0 14px;
    color: inherit;
    background: none;
    border: 0;
    border-radius: var(--tt-radius-sm);
    font-family: var(--tt-font-body);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: color 160ms ease, background-color 160ms ease;
}

.nav-link:hover,
.nav-item.menu-open > .nav-link {
    color: var(--tt-blue);
}

.chevron {
    width: 7px;
    height: 7px;
    margin-top: -3px;
    border-right: 1.8px solid currentColor;
    border-bottom: 1.8px solid currentColor;
    transform: rotate(45deg);
    transition: transform 200ms ease;
}

.nav-item.menu-open .chevron {
    margin-top: 3px;
    transform: rotate(-135deg);
}

.nav-actions {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

/* ---------- Mega menu ---------- */

.mega-menu {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    color: var(--tt-text);
    background: var(--tt-white);
    border-top: 1px solid var(--tt-border);
    box-shadow: var(--tt-shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition:
        opacity 180ms ease,
        transform 220ms var(--tt-ease),
        visibility 0s linear 220ms;
}

.nav-item.menu-open > .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition:
        opacity 180ms ease,
        transform 220ms var(--tt-ease),
        visibility 0s;
}

.mega-menu-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 40px;
    padding: 32px 0 36px;
}

.mega-columns {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 32px;
}

.mega-columns--grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-content: start;
}

.mega-column {
    display: grid;
    align-content: start;
    gap: 4px;
}

.mega-label {
    display: block;
    margin: 0 0 8px;
    color: var(--tt-muted);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.mega-link {
    display: grid;
    gap: 3px;
    padding: 12px 14px;
    color: var(--tt-text);
    border-radius: var(--tt-radius-sm);
    text-decoration: none;
    transition: background-color 160ms ease;
}

.mega-link:hover {
    background: var(--tt-light);
}

.mega-link strong {
    color: var(--tt-dark);
    font-family: var(--tt-font-heading);
    font-size: 15px;
    font-weight: 700;
}

.mega-link:hover strong {
    color: var(--tt-blue);
}

.mega-link span {
    color: var(--tt-muted);
    font-size: 13px;
    line-height: 1.5;
}

.mega-feature {
    align-self: start;
    padding: 26px;
    background: linear-gradient(160deg, var(--tt-blue-soft), #F7FAFF);
    border: 1px solid #D8E6FB;
    border-radius: var(--tt-radius);
}

.mega-feature h3 {
    margin: 0 0 10px;
    font-size: 19px;
}

.mega-feature p {
    margin: 0 0 18px;
    color: var(--tt-muted);
    font-size: 14px;
}

.mega-feature-link {
    color: var(--tt-blue);
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
}

.mega-feature-link:hover {
    text-decoration: underline;
    text-underline-offset: 4px;
}

/* ---------- Mobile navigation ---------- */

.mobile-menu-button {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    color: inherit;
    background: transparent;
    border: 0;
    border-radius: var(--tt-radius-sm);
    cursor: pointer;
}

.mobile-menu-button span {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform 200ms ease, opacity 200ms ease;
}

.mobile-menu-button[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.mobile-menu-button[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-navigation {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    max-height: calc(100dvh - var(--tt-header-height));
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 8px var(--tt-gutter) 28px;
    color: var(--tt-text);
    background: var(--tt-white);
    border-top: 1px solid var(--tt-border);
    box-shadow: var(--tt-shadow);
}

.mobile-navigation[hidden] {
    display: none;
}

.mobile-navigation summary,
.mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 2px;
    color: var(--tt-dark);
    border-bottom: 1px solid var(--tt-border);
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    list-style: none;
    cursor: pointer;
}

.mobile-navigation summary::-webkit-details-marker {
    display: none;
}

.mobile-navigation summary::after {
    content: "+";
    color: var(--tt-blue);
    font-size: 20px;
    font-weight: 500;
}

.mobile-navigation details[open] summary::after {
    content: "−";
}

.mobile-navigation details a {
    display: block;
    padding: 11px 12px;
    color: var(--tt-muted);
    font-size: 15px;
    text-decoration: none;
}

.mobile-navigation details a:hover {
    color: var(--tt-blue);
}

.mobile-actions {
    display: grid;
    gap: 12px;
    padding-top: 22px;
}

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

@media (max-width: 1200px) {
    .main-nav-inner {
        gap: 18px;
    }

    .nav-link {
        padding: 0 10px;
        font-size: 14px;
    }

    .nav-contact {
        display: none;
    }

    .mega-menu-inner {
        grid-template-columns: minmax(0, 1fr) 260px;
        gap: 28px;
    }
}

@media (max-width: 1050px) {
    .desktop-navigation,
    .nav-actions .btn {
        display: none;
    }

    .mobile-menu-button {
        display: inline-flex;
    }

    .top-bar-location {
        display: none;
    }
}

@media (max-width: 700px) {
    :root {
        --tt-topbar-height: 0px;
        --tt-header-height: 68px;
    }

    .top-bar {
        display: none;
    }

    .brand-logo img {
        width: 142px;
    }
}