/* --- Modern Header Styles --- */

/* Main Header Container */
.gemini-main-header {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 2rem;
    transition: background-color 0.4s ease, border-bottom 0.4s ease, box-shadow 0.4s ease;
    
    /* The Glassmorphism Effect */
    background-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); /* For Safari */
    border-bottom: 1px solid transparent;
}

/* Dynamic Class Added on Scroll */
.gemini-main-header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border-color, #eef1f4);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.gemini-main-header .header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

/* Logo and Nav Styling */
.gemini-main-header .header-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-color, #2c3e50);
    text-decoration: none;
}
.gemini-main-header .header-nav {
    display: flex;
    gap: 2rem;
}
.gemini-main-header .header-nav a {
    font-weight: 600;
    color: var(--text-secondary-color, #8a95a1);
    text-decoration: none;
    padding-bottom: 0.25rem;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}
.gemini-main-header .header-nav a:hover {
    color: var(--text-color, #2c3e50);
}
.gemini-main-header .header-nav a.active {
    color: var(--accent-color, #2ecc71);
    border-bottom-color: var(--accent-color, #2ecc71);
}

/* User Menu & Dropdown */
.gemini-main-header .header-user-menu {
    position: relative;
}
.gemini-main-header .user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.3s ease;
}
.gemini-main-header .header-user-menu.active .user-avatar {
    border-color: var(--accent-color, #2ecc71);
}

.gemini-main-header .user-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 280px;
    background-color: var(--card-bg-color, #fff);
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color, #eef1f4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.gemini-main-header .header-user-menu.active .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.gemini-main-header .user-dropdown .dropdown-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color, #eef1f4);
}
.gemini-main-header .user-dropdown h4 { margin: 0; color: var(--text-color, #2c3e50); }
.gemini-main-header .user-dropdown p { margin: 0.25rem 0 0; color: var(--text-secondary-color, #8a95a1); font-size: 0.9rem;}
.gemini-main-header .user-dropdown ul { list-style: none; margin: 0; padding: 0.5rem; }
.gemini-main-header .user-dropdown ul li a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-color, #2c3e50);
    font-weight: 500;
}
.gemini-main-header .user-dropdown ul li a:hover {
    background-color: var(--bg-color, #f7f9f7);
    color: var(--accent-color, #2ecc71);
}
.gemini-main-header .user-dropdown .dropdown-footer {
    padding: 0.5rem;
    border-top: 1px solid var(--border-color, #eef1f4);
}
.gemini-main-header .user-dropdown .logout-link { color: #e74c3c !important; }
/*
--- Custom Header Logo Image ---
Controls the size of the logo in the header.
*/
.custom-header-logo-img {
    max-height: 45px; /* Adjust this value to make your logo bigger or smaller */
    width: auto; /* Maintains the aspect ratio */
    display: block;
}

/* Responsive: Hide nav links on small screens */
@media (max-width: 768px) {
    .gemini-main-header .header-nav {
        display: none;
    }
    
}