/**
 * Header Styles
 * @package Codevall
 */

/* =============================================================================
   SITE HEADER — Fixed bar, always distinct from page content
   ============================================================================= */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition:
        background-color var(--transition-normal),
        box-shadow var(--transition-normal),
        border-color var(--transition-normal);
}

[data-theme="dark"] .site-header {
    background-color: rgba(15, 23, 42, 0.85);
}

.site-header.is-scrolled {
    background-color: rgba(255, 255, 255, 0.97);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
    border-bottom-color: transparent;
}

[data-theme="dark"] .site-header.is-scrolled {
    background-color: rgba(15, 23, 42, 0.97);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.4);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: var(--space-6);
}

/* =============================================================================
   LOGO
   ============================================================================= */

.site-branding .custom-logo { height: 40px; width: auto; }
.site-logo { height: 32px; width: auto; }
.site-logo-link { display: flex; align-items: center; text-decoration: none; }
.site-logo-text {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 900;
    letter-spacing: -0.02em;
    transition: opacity 0.2s ease;
}
.site-logo-link:hover .site-logo-text { opacity: 0.8; }
.site-title { font-family: var(--font-heading); font-size: var(--text-xl); font-weight: var(--font-bold); color: var(--color-text); }

/* =============================================================================
   DESKTOP NAVIGATION
   ============================================================================= */

.main-navigation { flex: 1; display: flex; justify-content: center; }
.nav-menu { display: flex; gap: var(--space-1); align-items: center; }

.nav-menu > li > a {
    display: block;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-muted);
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), background-color var(--transition-fast);
    white-space: nowrap;
}

.nav-menu > li > a:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

/* Active / current page indicator */
.nav-menu > li.current-menu-item > a,
.nav-menu > li.current-menu-parent > a,
.nav-menu > li.current-menu-ancestor > a {
    color: var(--color-primary);
    font-weight: var(--font-semibold);
}

/* Underline accent on active item */
.nav-menu > li.current-menu-item > a::after,
.nav-menu > li.current-menu-parent > a::after,
.nav-menu > li.current-menu-ancestor > a::after {
    content: '';
    display: block;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-full);
    margin-top: 2px;
}

/* =============================================================================
   DROPDOWN MENU
   ============================================================================= */

.nav-menu > li {
    position: relative;
}

.nav-menu .sub-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 260px;
    padding: var(--space-2);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.06);
    opacity: 0;
    visibility: hidden;
    transition:
        opacity var(--transition-fast),
        transform var(--transition-fast),
        visibility var(--transition-fast);
    z-index: var(--z-dropdown);
}

[data-theme="dark"] .nav-menu .sub-menu {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 2px 8px rgba(0, 0, 0, 0.3);
}

.nav-menu > li:hover > .sub-menu,
.nav-menu > li:focus-within > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-menu .sub-menu li {
    display: block;
}

.nav-menu .sub-menu a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-3);
    border-radius: var(--radius-lg);
    color: var(--color-text);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    white-space: nowrap;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-menu .sub-menu a:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

/* Icon wrapper inside dropdown items */
.nav-menu .sub-menu .dropdown-item__icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--color-background-alt);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    transition: background-color var(--transition-fast);
}

.nav-menu .sub-menu a:hover .dropdown-item__icon {
    background: var(--color-primary);
    color: white;
}

.nav-menu .sub-menu .dropdown-item__text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-menu .sub-menu .dropdown-item__label {
    font-weight: var(--font-semibold);
    font-size: var(--text-sm);
    line-height: 1.2;
}

.nav-menu .sub-menu .dropdown-item__desc {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    font-weight: var(--font-normal);
    line-height: 1.3;
}

.nav-menu .sub-menu a:hover .dropdown-item__desc {
    color: var(--color-primary);
    opacity: 0.8;
}

/* Arrow indicator for parent items */
.nav-menu > li.menu-item-has-children > a::before {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: var(--space-1-5);
    border-left: 3px solid transparent;
    border-right: 3px solid transparent;
    border-top: 4px solid currentColor;
    vertical-align: middle;
    opacity: 0.6;
    order: 1;
}

/* =============================================================================
   HEADER ACTIONS (right side)
   ============================================================================= */

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

/* Phone link */
.header-phone {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-text);
    text-decoration: none;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), background-color var(--transition-fast);
    white-space: nowrap;
}

.header-phone:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.header-phone svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

/* Divider between phone and CTA */
.header-divider {
    width: 1px;
    height: 24px;
    background-color: var(--color-border);
}

/* Dark mode toggle */
.dark-mode-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background-color: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}
.dark-mode-toggle:hover {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.dark-mode-toggle .icon-sun { display: none; }
.dark-mode-toggle .icon-moon { display: block; }
[data-theme="dark"] .dark-mode-toggle .icon-sun { display: block; }
[data-theme="dark"] .dark-mode-toggle .icon-moon { display: none; }

/* =============================================================================
   MOBILE MENU TOGGLE
   ============================================================================= */

.mobile-menu-toggle {
    display: none; /* hidden by default; shown via media query below */
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background-color: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
}
.hamburger { position: relative; width: 24px; height: 18px; }
.hamburger-line {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.hamburger-line:nth-child(1) { top: 0; }
.hamburger-line:nth-child(2) { top: 50%; transform: translateY(-50%); }
.hamburger-line:nth-child(3) { bottom: 0; }

.mobile-menu-toggle.is-active .hamburger-line:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
.mobile-menu-toggle.is-active .hamburger-line:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.is-active .hamburger-line:nth-child(3) { bottom: 50%; transform: translateY(50%) rotate(-45deg); }

/* Hide desktop nav elements on mobile */
@media (max-width: 768px) {
    .main-navigation,
    .header-phone,
    .header-divider,
    .header-cta {
        display: none !important;
    }
}

/* Hide mobile toggle on wide desktops (769-1279px uses it too, see the end of this file) */
@media (min-width: 1280px) {
    .mobile-menu-toggle {
        display: none !important;
    }
}

/* =============================================================================
   MOBILE NAVIGATION
   ============================================================================= */

.mobile-navigation {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    height: calc(100vh - var(--header-height));
    min-height: 300px;
    z-index: var(--z-fixed);
    background-color: var(--color-background);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    border-top: 1px solid var(--color-border);
    visibility: hidden;
    pointer-events: none;
}

.mobile-navigation.is-open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
}

.mobile-menu-inner {
    padding: var(--space-4) var(--space-6) var(--space-8);
}

/* Nav list */
.mobile-nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

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

/* Plain nav links */
.mobile-nav-item > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) 0;
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.mobile-nav-item > a:hover,
.mobile-nav-item.is-active > a {
    color: var(--color-primary);
}

/* Active underline accent */
.mobile-nav-item.is-active > a {
    font-weight: var(--font-semibold);
}

/* Parent item trigger button */
.mobile-nav-parent {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-4) 0;
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
    color: var(--color-text-muted);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: color var(--transition-fast);
}

.mobile-nav-parent:hover,
.mobile-nav-item--has-children.is-active > .mobile-nav-parent {
    color: var(--color-primary);
}

.mobile-nav-item--has-children.is-active > .mobile-nav-parent {
    font-weight: var(--font-semibold);
}

/* Arrow rotates when expanded */
.mobile-nav-arrow {
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.mobile-nav-item--has-children.is-expanded > .mobile-nav-parent .mobile-nav-arrow {
    transform: rotate(180deg);
}

.mobile-nav-item--has-children.is-expanded > .mobile-nav-parent {
    color: var(--color-primary);
}

/* Sub-menu accordion */
.mobile-sub-menu {
    list-style: none;
    margin: 0;
    padding: 0 0 var(--space-2) var(--space-2);
    max-height: 0;
    overflow: hidden;
    transition: max-height 300ms ease;
}

.mobile-nav-item--has-children.is-expanded > .mobile-sub-menu {
    max-height: 600px;
}

/* Sub-menu item links — icon + text layout matching desktop dropdown */
.mobile-sub-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-2);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--color-text);
    transition: background-color var(--transition-fast), color var(--transition-fast);
    margin-bottom: var(--space-1);
}

.mobile-sub-link:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.mobile-sub-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--color-background-alt);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    transition: background-color var(--transition-fast);
}

.mobile-sub-link:hover .mobile-sub-icon {
    background: var(--color-primary);
    color: white;
}

.mobile-sub-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mobile-sub-label {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    line-height: 1.2;
}

.mobile-sub-desc {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    line-height: 1.3;
}

.mobile-sub-link:hover .mobile-sub-desc {
    color: var(--color-primary);
    opacity: 0.8;
}

/* CTA block at bottom of mobile menu */
.mobile-menu-cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

/* =============================================================================
   SKIP LINK
   ============================================================================= */

.skip-link:focus {
    position: fixed;
    top: var(--space-4);
    left: var(--space-4);
    z-index: var(--z-tooltip);
    padding: var(--space-3) var(--space-4);
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--radius-md);
    clip: auto;
    width: auto;
    height: auto;
}

/* =============================================================================
   FITTING THE HEADER ON LAPTOPS
   The 7-item menu, phone, toggle and "See your site for £49 a month" button
   need about 1460px side by side, so below that the header is condensed.
   ============================================================================= */

/* 769-1279px: the menu moves behind the hamburger; the button stays in the bar */
@media (min-width: 769px) and (max-width: 1279px) {
    .site-header .main-navigation {
        display: none !important;
    }
    .site-header .mobile-menu-toggle {
        display: flex !important;
    }
}

/* All desktop widths: the phone link shows just its icon (it keeps its "Call us" label) */
@media (min-width: 769px) {
    .header-phone {
        font-size: 0;
        gap: 0;
    }
    .header-cta {
        white-space: nowrap;
    }
}

/* 1280-1599px: tighter menu and spacing so menu and button fit side by side */
@media (min-width: 1280px) and (max-width: 1599px) {
    .header-inner { gap: var(--space-4); }
    .header-actions { gap: var(--space-2); }
    .nav-menu { gap: 0; }
    .nav-menu > li > a { padding: var(--space-2) var(--space-2); }
    .header-cta { padding-left: var(--space-4); padding-right: var(--space-4); }
}

/* =============================================================================
   PAGE OFFSET — content starts below the fixed header (1.1.5)
   main.js keeps --site-header-height (the header's real height, which grows if
   it wraps) and --site-header-bottom (its bottom edge, admin bar included) up to
   date; the values here are the no-JS fallback.
   ============================================================================= */

:root {
    --site-header-height: calc(var(--header-height) + 1px);
    --site-header-bottom: var(--site-header-height);
}

body {
    padding-top: var(--site-header-height);
}

/* Anchor links (e.g. /start/#build) land with their heading visible */
html {
    scroll-padding-top: calc(var(--site-header-bottom) + 16px);
}

/* Logged in: the header sits below the WordPress admin bar */
.admin-bar .site-header {
    top: var(--wp-admin--admin-bar--height, 32px);
}