/* Custom styles and theme variables */
body { 
    font-family: 'Lora', serif; 
    transition: background-color 0.3s, color 0.3s; 
}
h1, h2, h3, h4, h5, h6, .nav-link { 
    font-family: 'Merriweather', serif; 
}
#main-content { 
    transition: opacity 0.3s ease-in-out; 
}
#main-content.fade-out { 
    opacity: 0; 
}

/* Reading Progress Bar */
#progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    width: 0%;
    z-index: 100; /* Highest z-index */
    transition: width 0.05s linear; /* Fast, smooth transition */
}

/* Post Content Styling */
.post-content p, .post-content li { 
    line-height: 1.9;
    margin-bottom: 1.5rem; 
}
.post-content h2 { 
    font-size: 1.5rem; 
    font-weight: bold; 
    margin-top: 2.5rem; 
    margin-bottom: 1rem; 
}
.post-content h3 { 
    font-size: 1.25rem; 
    font-weight: bold; 
    margin-top: 2rem; 
    margin-bottom: 1rem; 
}
.post-content a { 
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: color 0.2s ease-in-out;
    color: #3A6B6F;
}
.dark .post-content a {
    color: #66B2B7;
}
.post-content a:hover {
    color: #4A8B91;
}
.dark .post-content a:hover {
    color: #7cc0c5;
}
.post-content ul { 
    list-style-type: disc; 
    padding-left: 1.5rem; 
}
.post-content ol { 
    list-style-type: decimal; 
    padding-left: 1.5rem; 
}
.post-content blockquote { 
    border-left-width: 4px;
    padding-left: 1.5rem;
    font-style: italic;
    border-color: #A3C1AD;
    color: #4b5563;
}
.dark .post-content blockquote {
    border-color: #66B2B7;
    color: #9ca3af;
}
.post-content img { 
    display: block; 
    margin-left: auto; 
    margin-right: auto; 
    max-width: 100%; 
    border-radius: 0.5rem; 
    margin-top: 2rem; 
    margin-bottom: 2rem; 
}
.post-image { 
    cursor: zoom-in; 
    transition: opacity 0.3s ease; 
}
.post-image:hover { 
    opacity: 0.9; 
}

.tag-link { 
    display: inline-block; 
    padding: 0.25rem 0.75rem; 
    border-radius: 9999px; 
    font-size: 0.8rem; 
    font-family: 'Merriweather', serif; 
    transition: background-color 0.2s; 
}
#back-to-top-btn { 
    position: fixed; 
    bottom: 20px; 
    right: 20px; 
    opacity: 0; 
    pointer-events: none; 
    transition: opacity 0.3s; 
}
#back-to-top-btn.show { 
    opacity: 1; 
    pointer-events: auto; 
}
.pagination-link.active { 
    font-weight: bold; 
    text-decoration: underline; 
}