/**
 * GutsyBites Header Styles
 *
 * Glass pill navigation with centered logo, light/dark mode support,
 * scroll transitions, and mobile menu.
 *
 * @package GutsyBites
 */

/* ========================================
   Skip Link - Accessibility
   ======================================== */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-nav-bg, #fff);
    color: var(--color-nav-text, #004143);
    padding: 1rem 2rem;
    z-index: 9999;
    border-radius: 0 0 0.5rem 0.5rem;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 0;
    outline: 2px solid var(--color-hero-accent, #56c878);
    outline-offset: 2px;
}

/* Screen reader text - visually hidden but accessible */
.screen-reader-text {
    clip: rect(1px, 1px, 1px, 1px);
    position: absolute;
    height: 1px;
    width: 1px;
    overflow: hidden;
}

.screen-reader-text:focus {
    clip: auto;
    display: block;
    height: auto;
    width: auto;
}

/* ========================================
   Glass Pill Navigation - Centered Logo
   with Light/Dark Mode Support
   ======================================== */

.site-header {
    position: fixed;
    top: var(--navbar-margin-top, 0.5rem);
    left: var(--navbar-margin-sides, 1rem);
    right: var(--navbar-margin-sides, 1rem);
    z-index: 1000;
}

.nav-glass {
    max-width: 1400px;
    margin: 0 auto;
    border-radius: 9999px;
    padding: var(--navbar-padding-y, 0.5rem) var(--navbar-padding-x, 1.5rem);
}

/* Flexbox layout with absolutely centered logo */
.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    min-height: var(--navbar-height, 2.5rem);
}

/* Nav groups contain left/right nav items */
.nav-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Left group aligns items to the right (toward center) */
.nav-group-left {
    justify-content: flex-end;
}

/* Right group aligns items to the left (toward center) */
.nav-group-right {
    justify-content: flex-start;
}

/* ========================================
   Navigation Sections (Left & Right)
   ======================================== */

.nav-section {
    display: flex;
    align-items: center;
}

.nav-left {
    justify-content: flex-end;
}

.nav-right {
    justify-content: flex-start;
}

.nav-items {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.25rem;
}

.nav-items li a {
    padding: 0.5rem 1rem;
    color: var(--color-nav-text);
    text-decoration: none;
    font-weight: 600;
    border-radius: 9999px;
    transition: color 0.3s ease, background 0.3s ease;
    white-space: nowrap;
}

.nav-items li.current-menu-item a {
    color: var(--color-nav-hover);
}

@media (hover: hover) {
    .nav-items li a:hover {
        color: var(--color-nav-hover);
    }
}

/* ========================================
   Logo Container - Absolutely Centered
   ======================================== */

.nav-logo {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 2.25rem;
    padding: 0 1rem;
    z-index: 1;
    transition: padding 0.3s ease;
}

/* Reduce spacing when scrolled (icon is smaller) */
body.scrolled .nav-logo {
    padding: 0 0.25rem;
}

.nav-logo .site-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-nav-text);
    text-decoration: none;
    white-space: nowrap;
}

/* ========================================
   Full Logo Styles (Default State)
   ======================================== */

.logo-full {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.logo-full img,
.logo-full .custom-logo {
    max-height: var(--logo-max-height, 2.25rem);
    max-width: var(--logo-max-width, 180px);
    width: auto;
    object-fit: contain;   /* Preserve aspect ratio */
    display: block;
}

/* WordPress custom-logo-link wrapper - ensure vertical centering */
.logo-full .custom-logo-link {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

/* ========================================
   Icon Logo Styles (Scrolled State)
   ======================================== */

.logo-icon {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon img {
    height: 2rem;
    width: auto;
    display: block;
}

/* ========================================
   Light/Dark Mode Logo Visibility
   ======================================== */

/* Light mode: Show light logos, hide dark logos */
.logo-light { display: flex; }
.logo-dark, .logo-icon-dark { display: none; }

/* Dark mode: Show dark logos, hide light logos */
html.dark-theme .logo-light { display: none; }
html.dark-theme .logo-dark { display: flex; }
html.dark-theme .logo-icon-light { display: none; }
html.dark-theme .logo-icon-dark { display: flex; }

/* If no dark logo set, keep showing light logo in dark mode */
html.dark-theme .site-header:not(.has-dark-logo) .logo-light { display: flex; }

/* Fallback icon inherits filter in dark mode if no dedicated dark icon */
html.dark-theme .logo-icon-fallback img {
    filter: brightness(1.5);
}

/* ========================================
   Scroll State - Logo Transition
   ======================================== */

/* When scrolled with icon available */
body.scrolled .site-header.has-icon-logo .logo-full {
    opacity: 0;
    transform: scale(0.9);
    pointer-events: none;
}

/* Show appropriate icon based on theme */
body.scrolled .site-header.has-icon-logo .logo-icon-light {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    pointer-events: auto;
}

body.scrolled .site-header.has-icon-logo .logo-icon-dark {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    pointer-events: auto;
}

/* But still respect theme visibility */
body.scrolled html.dark-theme .logo-icon-light:not(.logo-icon-fallback) {
    opacity: 0;
    pointer-events: none;
}

/* ========================================
   Theme Toggle - Always Far Right
   ======================================== */

.theme-toggle {
    width: 2.75rem;  /* 44px - WCAG touch target minimum */
    height: 2.75rem;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    color: var(--color-nav-text);
    opacity: 0.7;
    transition: opacity 0.2s ease, background 0.2s ease;
    border-radius: 50%;
    flex-shrink: 0;
}

@media (hover: hover) {
    .theme-toggle:hover {
        opacity: 1;
        background: rgba(0, 0, 0, 0.05);
    }

    html.dark-theme .theme-toggle:hover {
        background: rgba(255, 255, 255, 0.1);
    }
}

.theme-toggle-icon {
    display: block;
}

.theme-toggle-icon.moon {
    display: none;
}

html.dark-theme .theme-toggle-icon.sun {
    display: none;
}

html.dark-theme .theme-toggle-icon.moon {
    display: block;
}

/* Mobile Theme Toggle */
.theme-toggle-mobile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border: none;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 0.5rem;
    cursor: pointer;
    color: var(--color-nav-text);
    font-weight: 600;
    width: 100%;
}

html.dark-theme .theme-toggle-mobile {
    background: rgba(255, 255, 255, 0.1);
}

.theme-toggle-mobile .theme-toggle-icon.moon {
    display: none;
}

html.dark-theme .theme-toggle-mobile .theme-toggle-icon.sun {
    display: none;
}

html.dark-theme .theme-toggle-mobile .theme-toggle-icon.moon {
    display: block;
}

/* ========================================
   Mobile Menu Toggle
   ======================================== */

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 2.75rem;  /* 44px - WCAG touch target minimum */
    height: 2.75rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.hamburger-line {
    width: 1.25rem;
    height: 2px;
    background: var(--color-nav-text);
    transition: color 0.3s ease, background 0.3s ease;
}

/* ========================================
   Mobile Menu Overlay
   ======================================== */

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(280px, 85vw);  /* Responsive: max 85% of viewport on small phones */
    height: 100vh;
    background: var(--color-nav-bg);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    transition: right 0.3s ease;
    z-index: 2000;
    padding: 2rem;
    overflow-y: auto;  /* Allow scrolling if menu is long */
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    background: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-nav-text);
    line-height: 1;
}

.mobile-nav-items {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav-items li {
    margin-bottom: 0.5rem;
}

.mobile-nav-items li a {
    display: block;
    padding: 1rem 1.25rem;  /* Increased for 44px+ touch target */
    color: var(--color-nav-text);
    text-decoration: none;
    font-weight: 600;
    border-radius: 0.5rem;
    transition: color 0.3s ease, background 0.3s ease;
    min-height: 2.75rem;  /* 44px minimum touch target */
}

.mobile-nav-items li.current-menu-item a {
    background: color-mix(in srgb, var(--color-nav-bg) 75%, transparent);
    color: var(--color-nav-hover);
}

@media (hover: hover) {
    .mobile-nav-items li a:hover {
        background: color-mix(in srgb, var(--color-nav-bg) 75%, transparent);
        color: var(--color-nav-hover);
    }
}

/* ========================================
   Responsive: Mobile Layout
   ======================================== */

@media (max-width: 900px) {
    .site-header {
        left: 0.5rem;
        right: 0.5rem;
    }

    .nav-glass {
        padding: 0.75rem 1rem;
    }

    /* Flexbox for centering logo on mobile */
    .nav-inner {
        display: flex;
        justify-content: center;
        align-items: center;
        min-height: auto;
        position: relative;
    }

    .desktop-only {
        display: none !important;
    }

    /* Hamburger positioned absolutely on right */
    .mobile-menu-toggle {
        display: flex;
        position: absolute;
        right: 0;
        top: 50%;
        transform: translateY(-50%);
        z-index: 10;
    }

    /* Logo container - reset absolute positioning for mobile */
    .nav-logo {
        position: static;
        transform: none;
        display: flex;
        justify-content: center;
        align-items: center;
        padding: 0;
        min-height: auto;
        margin: 0;
    }

    /* Full logo - smaller on mobile, centered */
    .logo-full {
        justify-content: center;
        align-items: center;
    }

    .logo-full img,
    .logo-full .custom-logo {
        max-height: var(--logo-max-height-mobile, 1.75rem);
        max-width: var(--logo-max-width-mobile, 140px);
        width: auto;
        height: auto;
        object-fit: contain;
        display: block;
    }

    /* Fix vertical centering - WordPress custom-logo-link needs flex */
    .logo-full .custom-logo-link {
        display: flex;
        align-items: center;
    }
}

/* ========================================
   Reduced Motion
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    .skip-link,
    .logo-full,
    .logo-icon,
    .nav-logo,
    .nav-items li a,
    .theme-toggle,
    .hamburger-line,
    .mobile-menu,
    .mobile-nav-items li a {
        transition: none;
    }
}