/* Navigation Animations and Header Behavior */

/* Header base styling */
header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    background-color: transparent;
    transition: all 0.4s ease;
}

/* Header when scrolled */
header.scrolled {
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

/* Header inner layout */
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 4vw;
}

/* Logo styling */
.header-title-logo img {
    height: 60px;
    transition: transform 0.3s ease;
}

.header-title-logo img:hover {
    transform: scale(1.05);
}

/* Navigation list */
.header-nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Navigation items */
.header-nav-item {
    margin: 0 15px;
    height: auto !important;
    line-height: normal !important;
    display: inline-block !important;
    vertical-align: middle !important;
}

/* Navigation links */
.header-nav-item a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 0 !important;
    display: inline-block !important;
    line-height: 1.2 !important;
    height: auto !important;
    vertical-align: middle !important;
    position: relative;
    transition: color 0.3s ease;
}

/* Yellow line animation - the amazing effect! */
.header-nav-item a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #D4AF37; /* Theta Tau yellow */
    transition: width 0.3s ease;
}

/* Yellow line appears on hover and active states */
.header-nav-item a:hover::after,
.header-nav-item--active a::after {
    width: 100%;
}

/* Mobile menu items - same animation */
.header-menu-nav-item a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 0 !important;
    display: inline-block !important;
    line-height: 1.2 !important;
    height: auto !important;
    vertical-align: middle !important;
    position: relative;
    transition: color 0.3s ease;
}

.header-menu-nav-item a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #D4AF37;
    transition: width 0.3s ease;
}

.header-menu-nav-item a:hover::after,
.header-menu-nav-item--active a::after {
    width: 100%;
}

/* Ensure header stays transparent initially */
header:not(.scrolled) {
    background-color: transparent !important;
}

/* Smooth transitions for all header elements */
header * {
    transition: all 0.3s ease;
}

/* Responsive header behavior - keep navigation visible on smaller screens */
@media (max-width: 768px) {
    .header-display-desktop {
        display: flex !important;
    }
    
    .header-display-mobile {
        display: none !important;
    }
    
    .header-nav {
        display: block !important;
    }
    
    .header-burger {
        display: none !important;
    }
    
    /* Make navigation more compact on smaller screens */
    .header-nav-item {
        margin: 0 8px;
    }
    
    .header-nav-item a {
        font-size: 0.9rem;
        padding: 6px 0 !important;
    }
    
    .header-title-logo img {
        height: 45px;
    }
    
    .header-inner {
        padding: 10px 3vw;
    }
}

@media (max-width: 480px) {
    .header-nav-item {
        margin: 0 5px;
    }
    
    .header-nav-item a {
        font-size: 0.8rem;
        padding: 4px 0 !important;
    }
    
    .header-title-logo img {
        height: 35px;
    }
    
    .header-inner {
        padding: 8px 2vw;
    }
}