/* css/components/header.css */
.main-header {
    background-color: rgba(255, 255, 255, 0.8); 
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color); 
    padding: 16px 0;
    
    /* --- GOAL 4: FIXED HEADER --- */
    position: fixed; /* Changed from sticky to fixed */
    top: 0; 
    left: 0;
    width: 100%; /* Ensure it spans full width */
    z-index: 1000;
    transition: background-color 0.3s, border-color 0.3s;
}

.main-header .header-content {
    display: flex; 
    justify-content: space-between; 
    align-items: center;
    margin: 0 auto; 
    padding: 0 24px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo { font-family: 'Playfair Display', serif; font-size: 28px; }
.header-title { font-weight: 500; color: var(--secondary-text); }

/* Dark Mode Support */
body.dark-mode .main-header {
    background-color: rgba(26, 32, 44, 0.85);
    border-bottom-color: var(--border-color);
}

/* Icon button styles */
.header-icon-btn {
    background: transparent;
    border: none;
    color: var(--secondary-text);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.header-icon-btn:hover {
    background-color: var(--border-color);
    color: var(--primary-text);
}