/* ============================================
   Yay!Timer - Standardized Navigation Styles
   ============================================
   
   This is the SINGLE SOURCE OF TRUTH for all
   navigation styles. Do NOT add navigation CSS
   to individual page <style> blocks.
   
   Conventions:
   - Use opacity/visibility for smooth transitions
   - SVG icons only (no emojis)
   - Mobile accordions use .expanded class (also supports .active/.open for compatibility)
   
   Last Updated: January 26, 2026
   ============================================ */

/* ===========================================
   Desktop Navigation Dropdown
   =========================================== */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: #374151;
    transition: color 0.2s ease;
    cursor: pointer;
    background: none;
    border: none;
    font-size: 1rem;
    padding: 0;
}

.dark .nav-dropdown-toggle {
    color: #d1d5db;
}

.nav-dropdown-toggle:hover {
    color: #FF6B6B;
}

.nav-dropdown-chevron {
    width: 1rem;
    height: 1rem;
    transition: transform 0.2s ease;
}

.nav-dropdown:hover .nav-dropdown-chevron {
    transform: rotate(180deg);
}

.nav-dropdown-content {
    position: absolute;
    left: 0;
    top: 100%;
    min-width: 220px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    z-index: 100;
    padding: 0.5rem 0;
    margin-top: 0.5rem;
    /* Use opacity/visibility for smooth transitions */
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}

.dark .nav-dropdown-content {
    background: #1f2937;
    border: 1px solid #374151;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.nav-dropdown:hover .nav-dropdown-content,
.nav-dropdown:focus-within .nav-dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown-content a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
    color: #374151;
    text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease;
    font-size: 0.9375rem;
}

.dark .nav-dropdown-content a {
    color: #d1d5db;
}

.nav-dropdown-content a:hover {
    background: #f3f4f6;
    color: #667eea;
}

.dark .nav-dropdown-content a:hover {
    background: #374151;
    color: #a5b4fc;
}

.nav-dropdown-content .dropdown-icon {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
    color: #667eea;
}

.nav-dropdown-content .dropdown-divider {
    height: 1px;
    background: #e5e7eb;
    margin: 0.5rem 0;
}

.dark .nav-dropdown-content .dropdown-divider {
    background: #374151;
}

/* ===========================================
   Language Selector Dropdown
   =========================================== */
.lang-dropdown {
    position: relative;
}

.lang-dropdown-content {
    position: absolute;
    right: 0;
    top: 100%;
    min-width: 300px;
    max-height: 70vh;
    overflow-y: auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    z-index: 100;
    padding: 0.5rem 0;
    margin-top: 0.5rem;
    /* Always-visible scrollbar */
    scrollbar-width: thin;
    scrollbar-color: #9ca3af transparent;
    /* Use opacity/visibility for smooth transitions */
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}

/* WebKit always-visible scrollbar */
.lang-dropdown-content::-webkit-scrollbar {
    width: 6px;
}
.lang-dropdown-content::-webkit-scrollbar-track {
    background: transparent;
}
.lang-dropdown-content::-webkit-scrollbar-thumb {
    background: #9ca3af;
    border-radius: 3px;
}
.lang-dropdown-content::-webkit-scrollbar-thumb:hover {
    background: #6b7280;
}

.dark .lang-dropdown-content {
    background: #1f2937;
    border: 1px solid #374151;
    scrollbar-color: #4b5563 transparent;
}

.dark .lang-dropdown-content::-webkit-scrollbar-thumb {
    background: #4b5563;
}
.dark .lang-dropdown-content::-webkit-scrollbar-thumb:hover {
    background: #6b7280;
}

.lang-dropdown:hover .lang-dropdown-content,
.lang-dropdown:focus-within .lang-dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown-content a {
    display: block;
    padding: 10px 16px;
    color: #374151;
    text-decoration: none;
    transition: background 0.2s ease;
}

.dark .lang-dropdown-content a {
    color: #d1d5db;
}

.lang-dropdown-content a:hover {
    background: #f3f4f6;
}

.dark .lang-dropdown-content a:hover {
    background: #374151;
}

.lang-dropdown-content a.active {
    background: #667eea;
    color: white;
}

/* ===========================================
   Mobile Navigation Accordion
   =========================================== */
.mobile-nav-accordion {
    border-top: 1px solid #e5e7eb;
    padding-top: 0.5rem;
}

.dark .mobile-nav-accordion {
    border-top-color: #374151;
}

.mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.5rem 0;
    background: none;
    border: none;
    cursor: pointer;
    color: #374151;
    font-size: 1rem;
    text-align: left;
}

.dark .mobile-nav-toggle {
    color: #d1d5db;
}

.mobile-nav-toggle:hover {
    color: #667eea;
}

.mobile-nav-chevron {
    width: 1.25rem;
    height: 1.25rem;
    transition: transform 0.3s ease;
}

.mobile-nav-chevron.expanded,
.mobile-nav-chevron.active {
    transform: rotate(180deg);
}

/* Also support SVG rotation inside toggle button */
.mobile-nav-toggle.active svg,
.mobile-nav-toggle.expanded svg {
    transform: rotate(180deg);
}

.mobile-nav-list {
    display: none;
    padding-left: 1rem;
    padding-bottom: 0.5rem;
}

.mobile-nav-list.expanded,
.mobile-nav-list.active,
.mobile-nav-list.open {
    display: block;
}

.mobile-nav-list a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    color: #6b7280;
    text-decoration: none;
    transition: color 0.2s ease;
    font-size: 0.9375rem;
}

.dark .mobile-nav-list a {
    color: #9ca3af;
}

.mobile-nav-list a:hover {
    color: #667eea;
}

.mobile-nav-list .dropdown-icon {
    width: 1rem;
    height: 1rem;
    color: #667eea;
}

/* ===========================================
   Mobile Language Accordion
   =========================================== */
.mobile-lang-accordion {
    border-top: 1px solid #e5e7eb;
    padding-top: 0.75rem;
    margin-top: 0.75rem;
}

.dark .mobile-lang-accordion {
    border-top-color: #374151;
}

.mobile-lang-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.5rem 0;
    background: none;
    border: none;
    cursor: pointer;
    color: #374151;
}

.dark .mobile-lang-toggle {
    color: #d1d5db;
}

.mobile-lang-toggle:hover {
    color: #667eea;
}

.mobile-lang-toggle-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mobile-lang-chevron {
    width: 1.25rem;
    height: 1.25rem;
    transition: transform 0.3s ease;
}

.mobile-lang-chevron.expanded,
.mobile-lang-chevron.active {
    transform: rotate(180deg);
}

.mobile-lang-list {
    display: none;
    padding-left: 1.75rem;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    max-height: 280px;
    overflow-y: auto;
    /* Always show scrollbar */
    overflow-y: scroll;
    scrollbar-width: thin; /* Firefox */
    scrollbar-color: #9ca3af transparent; /* Firefox: thumb track */
}

/* Webkit browsers (Chrome, Safari, Edge) - always visible scrollbar */
.mobile-lang-list::-webkit-scrollbar {
    width: 6px;
}

.mobile-lang-list::-webkit-scrollbar-track {
    background: transparent;
}

.mobile-lang-list::-webkit-scrollbar-thumb {
    background-color: #9ca3af;
    border-radius: 3px;
}

.dark .mobile-lang-list {
    scrollbar-color: #6b7280 transparent; /* Firefox dark mode */
}

.dark .mobile-lang-list::-webkit-scrollbar-thumb {
    background-color: #6b7280;
}

.mobile-lang-list.expanded,
.mobile-lang-list.active {
    display: block;
}

.mobile-lang-list a {
    display: flex;
    align-items: center;
    padding: 0.5rem 0;
    color: #374151;
    text-decoration: none;
    transition: color 0.2s ease;
}

.dark .mobile-lang-list a {
    color: #d1d5db;
}

.mobile-lang-list a:hover {
    color: #667eea;
}

.mobile-lang-list a.active {
    color: #667eea;
    font-weight: 600;
}

/* ===========================================
   Active Page Indicator
   =========================================== */
.nav-link-active {
    color: #FF6B6B !important;
    font-weight: 500;
}

/* ===========================================
   Back to Top Button
   =========================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    z-index: 50;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.5);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* ===========================================
   Breadcrumb Styles
   =========================================== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #6b7280;
    flex-wrap: wrap;
}

.dark .breadcrumb {
    color: #9ca3af;
}

.breadcrumb a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.2s ease;
}

.breadcrumb a:hover {
    color: #764ba2;
    text-decoration: underline;
}

.breadcrumb-separator {
    color: #9ca3af;
}

.dark .breadcrumb-separator {
    color: #6b7280;
}

.breadcrumb-current {
    color: #374151;
    font-weight: 500;
}

.dark .breadcrumb-current {
    color: #e5e7eb;
}