/*
 * header.css
 * Styles for the site header, navigation, mobile drawer, and CTA dot.
 */


/* ─── Screen Reader Utility ─────────────────────────────────── */

.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}


/* ─── Site Header ───────────────────────────────────────────── */

/*
 * Body padding-top is 0 — the transparent header overlays all page
 * content. Hero sections carry their own top padding to clear the header.
 */
body {
    padding-top: 0;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1060;
    height: 88px;
    background-color: transparent;
    padding-top: 0;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-scrolled {
    background-color: #ffffff;
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.10);
}

@media (min-width: 481px) {
    .site-header {
        height: auto;
        padding-top: 0;
    }
    .site-header__inner {
        height: auto;
        padding-block: 0.5rem;
    }
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 2rem;
}


/* ─── Logo ──────────────────────────────────────────────────── */

.site-header__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

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

.site-header__logo .site-logo {
    display: block;
    max-height: 104px;
    height: auto;
    width: auto;
}

/* Default state: plain logo visible, glow logo hidden */
.site-header__logo .site-logo--glow    { display: none; }
.site-header__logo .site-logo--default { display: block; }

/* Sticky state: swap logos */
.site-header.is-scrolled .site-header__logo .site-logo--default { display: none; }
.site-header.is-scrolled .site-header__logo .site-logo--glow    { display: block; }

.site-header__logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.02em;
}


/* ─── Desktop Navigation ─────────────────────────────────────── */

.site-header__nav-wrap {
    flex: 1;
    display: flex;
    justify-content: center;
}

.site-header__nav .nav__list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-header__nav .nav__list li a {
    display: inline-block;
    padding: 0.5rem 0.875rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    border-radius: 4px;
    transition: color 0.2s ease, background-color 0.2s ease;
}

.site-header__nav .nav__list li a:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.12);
    text-decoration: none;
}

/* Active / current menu item */
.site-header__nav .nav__list li.current-menu-item > a,
.site-header__nav .nav__list li.current-page-ancestor > a {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.18);
    font-weight: 600;
}

/* Sticky nav link colours — white text → dark on white background */
.site-header.is-scrolled .site-header__nav .nav__list li a {
    color: var(--color-text);
}
.site-header.is-scrolled .site-header__nav .nav__list li a:hover {
    color: var(--color-primary);
    background-color: rgba(0, 0, 0, 0.06);
}
.site-header.is-scrolled .site-header__nav .nav__list li.current-menu-item > a,
.site-header.is-scrolled .site-header__nav .nav__list li.current-page-ancestor > a {
    color: var(--color-primary);
    background-color: rgba(0, 0, 0, 0.07);
}


/* ─── Header Controls ────────────────────────────────────────── */

.site-header__controls {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.site-header__actions {
    display: flex;
    align-items: center;
}


/* ─── CTA Button + Pulse Dot ─────────────────────────────────── */

.site-header__cta {
    position: relative;
    gap: 0.625rem;
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: #ffffff;
    font-weight: 600;
}

.site-header__cta:hover,
.site-header__cta:focus-visible {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    color: #ffffff;
    text-decoration: none;
}

/* Pulse dot */
.site-header__cta-dot {
    position: relative;
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #ffffff;
    flex-shrink: 0;
}

.site-header__cta-dot::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.4);
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
    0%   { transform: scale(0.6); opacity: 0.8; }
    70%  { transform: scale(1.8); opacity: 0;   }
    100% { transform: scale(1.8); opacity: 0;   }
}


/* ─── Mobile Toggle ─────────────────────────────────────────── */

.site-header__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.site-header__toggle:hover {
    background-color: rgba(255, 255, 255, 0.12);
}

.site-header__toggle-bar {
    display: block;
    width: 22px;
    height: 2px;
    background-color: #ffffff;
    border-radius: 2px;
    transition: background-color 0.3s ease;
}

.site-header.is-scrolled .site-header__toggle-bar {
    background-color: var(--color-text);
}

.site-header.is-scrolled .site-header__toggle:hover {
    background-color: rgba(0, 0, 0, 0.06);
}


/* ─── Mobile Drawer ─────────────────────────────────────────── */

.mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 88vw;
    max-width: 400px;
    min-height: 100vh;
    min-height: 100dvh;
    background-color: #ffffff;
    z-index: 1050;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    overscroll-behavior: contain;
}

.mobile-drawer.is-open {
    transform: translateX(0);
}

.mobile-drawer__inner {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100dvh;
    padding: 2rem 1.75rem 2.5rem;
}


/* Drawer Header */

.mobile-drawer__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2.5rem;
    flex-shrink: 0;
}

.mobile-drawer__logo {
    display: flex;
    align-items: center;
    overflow: hidden;
}

.mobile-drawer__logo a {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.mobile-drawer__logo .site-logo {
    display: block;
    max-height: 104px;
    height: auto;
    width: auto;
}

.mobile-drawer__logo-text {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-primary);
}

.mobile-drawer__close {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 1.5rem;
    line-height: 1;
    color: var(--color-text);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.mobile-drawer__close:hover {
    background-color: var(--color-bg-light);
    color: var(--color-primary);
}


/* Drawer Navigation */

.mobile-drawer__nav {
    flex: 1;
}

.mobile-drawer__nav .mobile-nav__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-drawer__nav .mobile-nav__list li {
    border-bottom: 1px solid var(--color-border);
}

.mobile-drawer__nav .mobile-nav__list li:first-child {
    border-top: 1px solid var(--color-border);
}

.mobile-drawer__nav .mobile-nav__list li a {
    display: block;
    padding: 1.125rem 0.375rem;
    font-size: 1.0625rem;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.2s ease, padding-left 0.2s ease;
}

.mobile-drawer__nav .mobile-nav__list li a:hover {
    color: var(--color-secondary);
    padding-left: 0.625rem;
    text-decoration: none;
}

.mobile-drawer__nav .mobile-nav__list li.current-menu-item > a {
    color: var(--color-secondary);
    font-weight: 600;
}


/* Drawer Footer */

.mobile-drawer__footer {
    padding-top: 2.5rem;
    margin-top: auto;
    flex-shrink: 0;
}

.mobile-drawer__cta {
    display: flex;
    width: 100%;
    justify-content: center;
    padding-block: 0.875rem;
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: #ffffff;
    font-weight: 600;
    font-size: 1rem;
}

.mobile-drawer__cta:hover,
.mobile-drawer__cta:focus-visible {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    color: #ffffff;
    text-decoration: none;
}


/* ─── Drawer Overlay ─────────────────────────────────────────── */

.mobile-drawer__overlay {
    position: fixed;
    inset: 0;
    z-index: 1040;
    background-color: rgba(17, 17, 17, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}

.mobile-drawer__overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}


/* ─── Responsive ─────────────────────────────────────────────── */

@media (max-width: 1024px) {

    .site-header__nav-wrap {
        display: none;
    }

    .site-header__toggle {
        display: flex;
    }

    .site-header__controls {
        gap: 0.625rem;
    }

    .site-header__cta {
        padding-inline: 1rem;
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {

    .site-header {
        padding-top: 0;
    }

    .site-header__logo .site-logo {
        max-height: 76px;
    }
}