/**
 * JournalsTheme - Scroll Navigation Styles
 * CSS for scroll-based header hiding and sticky navigation
 */

/* Header section transition animations */
.header-top-bar,
.header-main-modern,
.main-navigation {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(0);
    opacity: 1;
    max-height: 500px; /* Large enough to contain content */
    /*overflow: hidden;*/
}

.header-top-bar.header-section-hidden,
.header-main-modern.header-section-hidden,
.main-navigation.header-section-hidden {
    transform: translateY(-20px);
    opacity: 0;
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    margin-top: 0;
    margin-bottom: 0;
    pointer-events: none;
}

/* Sticky Navigation Container */
.sticky-nav-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.sticky-nav-container.sticky-nav-visible {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

/* Sticky Navigation Content */
.sticky-navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
    min-height: 60px;
}

/* Sticky Brand - Compact Logo */
.sticky-brand {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.sticky-brand .site-logo-circle {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color, #2563eb);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.sticky-brand .site-logo-circle:hover {
    transform: scale(1.05);
}

.sticky-brand .logo-img-modern {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.sticky-brand .logo-text {
    font-size: 0.9rem;
    font-weight: 700;
}

/* Sticky Navigation Menu */
.sticky-nav-menu {
    display: flex;
    align-items: center;
    margin: 0;
    flex: 1;
    justify-content: center;
}

.sticky-nav-menu .navbar-nav {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 2rem;
}

.sticky-nav-menu .navbar-nav li {
    position: relative;
}

.sticky-nav-menu .navbar-nav a {
    color: var(--text-primary, #1f2937);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s ease;
    display: block;
    position: relative;
}

.sticky-nav-menu .navbar-nav a:hover {
    color: var(--primary-color, #2563eb);
    background-color: rgba(37, 99, 235, 0.08);
    transform: translateY(-1px);
}

.sticky-nav-menu .navbar-nav a:active {
    transform: translateY(0);
}

/* Active menu item indicator */
.sticky-nav-menu .navbar-nav a.current {
    color: var(--primary-color, #2563eb);
    background-color: rgba(37, 99, 235, 0.1);
}

/* Sticky Mobile Toggle */
.sticky-toggler {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    border-radius: 6px;
    transition: background-color 0.3s ease;
}

.sticky-toggler:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.sticky-toggler .navbar-toggler-icon {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 24px;
    height: 18px;
    position: relative;
}

.sticky-toggler .navbar-toggler-icon span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary, #1f2937);
    border-radius: 1px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: absolute;
}

.sticky-toggler .navbar-toggler-icon span:nth-child(1) {
    top: 0;
}

.sticky-toggler .navbar-toggler-icon span:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.sticky-toggler .navbar-toggler-icon span:nth-child(3) {
    bottom: 0;
}

/* Animated hamburger icon */
.sticky-toggler .navbar-toggler-icon.active span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.sticky-toggler .navbar-toggler-icon.active span:nth-child(2) {
    opacity: 0;
}

.sticky-toggler .navbar-toggler-icon.active span:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

/* Body adjustments when sticky nav is active */
body.sticky-nav-active {
    /* Add any body adjustments if needed */
}

/* Responsive Design */
@media (max-width: 991px) {
    .sticky-toggler {
        display: flex;
    }
    
    .sticky-nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-top: 1px solid rgba(0, 0, 0, 0.1);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        justify-content: flex-start;
    }
    
    .sticky-nav-menu.show {
        max-height: 400px;
        opacity: 1;
        visibility: visible;
    }
    
    .sticky-nav-menu .navbar-nav {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 1rem;
        width: 100%;
    }
    
    .sticky-nav-menu .navbar-nav li {
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .sticky-nav-menu .navbar-nav li:last-child {
        border-bottom: none;
    }
    
    .sticky-nav-menu .navbar-nav a {
        padding: 1rem;
        font-size: 1rem;
        border-radius: 0;
    }
    
    .sticky-nav-menu .navbar-nav a:hover {
        background-color: rgba(37, 99, 235, 0.05);
        transform: none;
    }
    
    /* Adjust sticky navbar for mobile */
    .sticky-navbar {
        padding: 0.5rem 0;
        min-height: 56px;
    }
    
    .sticky-brand .site-logo-circle {
        width: 40px;
        height: 40px;
        font-size: 0.85rem;
    }
}

@media (max-width: 768px) {
    .sticky-navbar {
        padding: 0.4rem 0;
        min-height: 52px;
    }
    
    .sticky-brand .site-logo-circle {
        width: 36px;
        height: 36px;
        font-size: 0.8rem;
    }
    
    .sticky-nav-menu .navbar-nav {
        padding: 0.5rem;
    }
    
    .sticky-nav-menu .navbar-nav a {
        padding: 0.75rem;
        font-size: 0.95rem;
    }
}

/* Dark mode support (if implemented) */
@media (prefers-color-scheme: dark) {
    .sticky-nav-container {
        background: rgba(31, 41, 55, 0.98);
        border-bottom-color: rgba(75, 85, 99, 0.3);
    }
    
    .sticky-nav-menu .navbar-nav a {
        color: #f9fafb;
    }
    
    .sticky-nav-menu .navbar-nav a:hover {
        color: #60a5fa;
        background-color: rgba(96, 165, 250, 0.1);
    }
    
    .sticky-nav-menu .navbar-nav a.current {
        color: #60a5fa;
        background-color: rgba(96, 165, 250, 0.15);
    }
    
    .sticky-toggler:hover {
        background-color: rgba(255, 255, 255, 0.05);
    }
    
    .sticky-toggler .navbar-toggler-icon span {
        background-color: #f9fafb;
    }
    
    @media (max-width: 991px) {
        .sticky-nav-menu {
            background: rgba(31, 41, 55, 0.98);
            border-top-color: rgba(75, 85, 99, 0.3);
        }
        
        .sticky-nav-menu .navbar-nav li {
            border-bottom-color: rgba(75, 85, 99, 0.2);
        }
        
        .sticky-nav-menu .navbar-nav a:hover {
            background-color: rgba(96, 165, 250, 0.08);
        }
    }
}

/* Smooth scrolling enhancement */
html {
    scroll-behavior: smooth;
}

/* Performance optimizations */
.sticky-nav-container * {
    will-change: transform, opacity;
}

/* Accessibility improvements */
.sticky-toggler:focus {
    outline: 2px solid var(--primary-color, #2563eb);
    outline-offset: 2px;
    border-radius: 6px;
}

.sticky-nav-menu .navbar-nav a:focus {
    outline: 2px solid var(--primary-color, #2563eb);
    outline-offset: 2px;
    border-radius: 6px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .header-top-bar,
    .header-main-modern,
    .sticky-nav-container,
    .sticky-nav-menu,
    .sticky-toggler .navbar-toggler-icon span,
    .sticky-nav-menu .navbar-nav a {
        transition: none;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .sticky-nav-menu .navbar-nav a:hover {
        transform: none;
    }
}

/* Additional styling for better integration */
.sticky-nav-container .container {
    position: relative;
}

/* Ensure proper z-index stacking */
.sticky-nav-container {
    z-index: 1000;
}

.sticky-nav-menu {
    z-index: 1001;
}