/* Scroll Progress Indicator */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--hero-gradient-start), var(--hero-gradient-end));
    z-index: 9999;
    transition: width 0.1s ease-out;
}

[data-theme="dark"] .scroll-progress {
    background: linear-gradient(90deg, #ffffff, #8ab4ff);
}

h1{
    padding-top: 1rem;
    padding-bottom: 2rem;
}

h2{
    padding: 2rem 0rem;
}

h3{
    padding: 1rem 0rem;
}

p{
    padding-bottom: 1rem;
    font-family: Inter;
    letter-spacing: .03em;
}

/* Utility class for hiding elements */
.hidden {
    display: none !important;
}

body ul li a{
    color: var(--color-primary-light);
    font-weight:normal ;
}

[data-theme="dark"] body ul li a {
    color: var(--color-primary-dark);
}

ul {
    list-style-type: "// ";
    padding-left: 2rem;
}


/* intro */
.intro{
    margin-top: 10rem;
    margin-bottom: 2rem;
    font-size: x-large;
}

[data-theme="dark"] .intro {
    color: #ffffff;
}

/* list styling */
.f2023{
    font-size: large;
}
a.f2023{
    position: relative;
    color: var(--color-primary-light);
}

[data-theme="dark"] a.f2023 {
    color: var(--color-primary-dark);
}

li.nobullet{
    list-style: none;  
    margin-left: -2rem;
}

/* BLOG SUPPORT */
.blog-ref a {
    display: inline-block;
    margin-right: 1rem;
    vertical-align: middle;
    color:hsl(218, 100%, 30%);
    text-decoration: none;
  }

[data-theme="dark"] .blog-ref a {
    color: var(--color-primary-dark);
}
.blog-ref img {
    display: inline-block;
    vertical-align: middle;
    margin-right: 2rem;
  }
.blog-ref p.log-sub {
    display: inline-block;
    vertical-align: -2rem;
    margin-left: -6rem;
  }
.blog-img{
    max-width: 100%;
    padding-top: 2rem;
    padding-bottom: 2rem;
}
.footnotes{
    padding-top: 0rem;
    margin-left: 2rem;
    font-size: var(--font-size-sm);
}

/* Footnote hover tooltip - container */
#post-article .footnote-item {
    position: relative;
    display: inline;
}

/* Footnote reference links */
#post-article sup[id^="fnref"] a {
    position: relative;
    display: inline-block;
    background: none;
    text-decoration: none;
    font-family: 'Syne', Arial, Helvetica, sans-serif;
    color: hsl(218, 100%, 40%);
    font-size: 1.25rem;
    cursor: help;
    padding: 0 0.2em;
    transition: all 0.2s ease;
}

[data-theme="dark"] #post-article sup[id^="fnref"] a {
    color: var(--color-primary-dark);
}

#post-article sup[id^="fnref"] a:hover {
    color: hsl(218, 100%, 60%);
}

[data-theme="dark"] #post-article sup[id^="fnref"] a:hover {
    color: #d0e0ff;
}

/* Footnote tooltip content */
#post-article sup[id^="fnref"] a::after {
    content: attr(data-footnote);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: hsl(218, 100%, 95%);
    color: hsl(0, 0%, 10%);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-size: 1.3rem;
    white-space: normal;
    width: max-content;
    max-width: 300px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 1000;
    font-family: 'Inter', Arial, sans-serif;
    line-height: 1.4;
    pointer-events: none;
}

[data-theme="dark"] #post-article sup[id^="fnref"] a::after {
    background: hsl(218, 50%, 25%);
    color: #e0e8ff;
    border: 1px solid hsl(218, 60%, 40%);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

/* Show tooltip on hover */
#post-article sup[id^="fnref"] a:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-4px);
}

/* Footnote section at bottom */
#post-article .footnotes {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid hsl(0, 0%, 85%);
}

[data-theme="dark"] #post-article .footnotes {
    border-top-color: hsl(0, 0%, 30%);
}

#post-article .footnotes ol {
    padding-left: 1.5rem;
    margin: 0;
}

#post-article .footnotes li {
    margin-bottom: 0.75rem;
    line-height: 1.6;
    font-size: 1.5rem;
    color: hsl(0, 0%, 30%);
}

[data-theme="dark"] #post-article .footnotes li {
    color: #b0b0b0;
}

#post-article .footnotes li p {
    margin: 0;
    display: inline;
}

/* Footnote back reference */
#post-article .footnote-backref {
    text-decoration: none;
    color: hsl(218, 100%, 50%);
    font-size: 0.85em;
    margin-left: 0.5em;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

[data-theme="dark"] #post-article .footnote-backref {
    color: var(--color-primary-dark);
}

#post-article .footnote-backref:hover {
    opacity: 1;
}
.posts {
    padding-bottom: 0rem;
}

body p a{
    text-decoration: underline;
    color:hsl(216, 100%,10%);
    transition: color 275ms ease;
    }

[data-theme="dark"] body p a {
    color: #a0c0ff;
}

a#fnref1,a#fnref2,a#fnref3,a#fnref4,a#fnref5{
    background: none;
    text-decoration: none;
    font-family: 'Syne', Arial, Helvetica, sans-serif;
    color: hsl(216, 100%,10%);
}

[data-theme="dark"] a#fnref1,
[data-theme="dark"] a#fnref2,
[data-theme="dark"] a#fnref3,
[data-theme="dark"] a#fnref4,
[data-theme="dark"] a#fnref5 {
    color: #a0c0ff;
}

a.footnote-backref{
    background: none;
    text-decoration: none;
}

/* filters */
.super{
    vertical-align: 1rem;
    font-size: small;
    margin-left: 2rem;
    color: hsl(0, 0%, 40%);
}

[data-theme="dark"] .super {
    color: #c0c0c0;
}

.sub-web{
    vertical-align: -1rem;
    font-size: small;
    margin-left: -6rem;
    background-color: hsl(135, 100%, 95%);
    color: hsl(135, 100%, 25%);
    padding: 0.25rem;
}

[data-theme="dark"] .sub-web {
    background-color: hsl(135, 50%, 25%);
    color: #a0e0a0;
}

.sub-gen{
    vertical-align: -1rem;
    font-size: small;
    margin-left: -6rem;
    background-color: hsl(44, 100%, 95%);
    color: hsl(44, 100%, 20%);
    padding: 0.25rem;
}

[data-theme="dark"] .sub-gen {
    background-color: hsl(44, 50%, 25%);
    color: #f0d0a0;
}

.second{
    margin-left: 0.5rem;
}

.filter-button{
    font-family: inherit;
    border: none;
    background-color: hsl(239, 80%, 90%);
    color: hsl(239, 100%, 10%);
    padding: 0.25rem 1rem;
}

[data-theme="dark"] .filter-button {
    background-color: hsl(239, 40%, 30%);
    color: #d0d0ff;
}

.selected{
    background-color: hsl(239, 100%, 65%);
    color: hsl(239, 100%, 95%);
    box-shadow: inset 0rem 0rem 0rem 0.15rem  black;
}

[data-theme="dark"] .selected {
    background-color: hsl(239, 60%, 50%);
    color: #ffffff;
    box-shadow: inset 0rem 0rem 0rem 0.15rem #ffffff;
}

.filter{
    padding-bottom: 2rem;
}

/* code */
pre code {
	color: hsl(0, 0%, 50%);
	tab-size: 4;
}

code {
	font-family: "SF Mono", Monaco, Menlo, Consolas, "Ubuntu Mono", "Liberation Mono", "DejaVu Sans Mono", "Courier New", monospace;
	font-size: 1em;
	line-height: 1.357em;
}

[data-theme="dark"] code {
    color: var(--color-border-light);
}

pre {
	background-color: hsl(0, 0%, 79%);
    color: hsl(0, 0%, 0%);
    padding: 2rem;
    overflow: auto;
    margin: 2rem 0rem;
    white-space: pre-wrap;
}

[data-theme="dark"] pre {
    background-color: hsl(220, 20%, 20%);
    color: var(--color-border-light);
}

/* ========== MARKDOWN CONTENT STYLING ========== */

/* Post article container */
#post-article {
    max-width: 100%;
    padding: 2rem 0;
    opacity: 1;
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
}

#post-article.fade-out {
    opacity: 0;
    transform: translateY(20px);
}

#post-article.fade-in {
    opacity: 0;
    transform: translateY(20px);
}

#post-article h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: hsl(218, 100%, 15%);
}

[data-theme="dark"] #post-article h1 {
    color: #f0f5ff;
}

#post-article h2 {
    font-size: 2rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--color-primary-light);
    background: none;
}

[data-theme="dark"] #post-article h2 {
    color: #e0e8ff;
    background: none;
}

#post-article h3 {
    font-size: 1.5rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: hsl(218, 100%, 25%);
}

[data-theme="dark"] #post-article h3 {
    color: #c0d0ff;
}

#post-article p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: hsl(0, 0%, 15%);
}

[data-theme="dark"] #post-article p {
    color: #d0d0d0;
}

#post-article li {
    color: hsl(0, 0%, 15%);
}

[data-theme="dark"] #post-article li {
    color: #d0d0d0;
}

#post-article code {
    background: rgba(0,0,0,0.05);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: monospace;
    font-size: 0.9em;
    color: hsl(0, 0%, 20%);
}

[data-theme="dark"] #post-article code {
    background: rgba(255,255,255,0.15);
    color: var(--color-border-light);
}

#post-article pre {
    background: rgba(0,0,0,0.05);
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    margin-bottom: 1.5rem;
    color: hsl(0, 0%, 20%);
}

[data-theme="dark"] #post-article pre {
    background: rgba(255,255,255,0.05);
    color: var(--color-border-light);
}

#post-article pre code {
    background: none;
    padding: 0;
}

#post-article strong {
    font-weight: 700;
    color: var(--color-primary-light);
}

[data-theme="dark"] #post-article strong {
    color: #ffffff;
}

#post-article em {
    font-style: italic;
}

#post-article img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
    margin: 1.5rem 0;
}

#post-article ul,
#post-article ol {
    margin-bottom: 1.5rem;
}

#post-article blockquote {
    border-left: 4px solid hsl(218, 100%, 50%);
    padding-left: 1rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: hsl(0, 0%, 30%);
}

[data-theme="dark"] #post-article blockquote {
    border-left-color: hsl(218, 60%, 60%);
    color: var(--color-primary-dark);
}

#post-article a {
    color: hsl(218, 100%, 35%);
    text-decoration: underline;
    transition: color 0.3s ease;
}

#post-article a:hover {
    color: hsl(218, 100%, 50%);
}

[data-theme="dark"] #post-article a {
    color: var(--color-primary-dark);
}

[data-theme="dark"] #post-article a:hover {
    color: #d0e0ff;
}

#post-article hr {
    border: none;
    border-top: 2px solid hsl(0, 0%, 90%);
    margin: 2rem 0;
}

[data-theme="dark"] #post-article hr {
    border-top-color: hsl(0, 0%, 30%);
}

/* Post meta info */
.post-meta {
    margin-bottom: 2rem;
    color: hsl(0, 0%, 60%);
    font-size: 1.1rem;
}

[data-theme="dark"] .post-meta {
    color: hsl(0, 0%, 70%);
}

.post-date,
.post-category {
    margin-right: 1rem;
}

/* Back button */
.back-button {
    background: hsl(218, 100%, 92%);
    border: none;
    font-size: 1.5rem;
    font-weight: 400;
    cursor: pointer;
    color: var(--color-primary-light);
    padding: 0.9rem 1.3rem;
    margin-top: 2rem;
    margin-bottom: 1.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-family);
    transition: all 0.3s ease-in-out;
}

.back-button:hover {
    background: hsl(218, 100%, 65%);
    color: hsl(218, 100%, 95%);
}

[data-theme="dark"] .back-button {
    background: hsl(218, 50%, 25%);
    border-color: hsl(218, 60%, 50%);
    color: var(--color-primary-dark);
}

[data-theme="dark"] .back-button:hover {
    background: hsl(218, 60%, 50%);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(176, 192, 255, 0.2);
}

/* Breadcrumbs */
.breadcrumbs {
    font-size: 1rem;
    color: hsl(0, 0%, 50%);
    margin-bottom: 2rem;
    padding-left: 0.5rem;
}

.breadcrumbs a {
    color: hsl(218, 100%, 40%);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumbs a:hover {
    color: hsl(218, 100%, 60%);
    text-decoration: underline;
}

.breadcrumb-separator {
    margin: 0 0.5rem;
    color: hsl(0, 0%, 60%);
}

.breadcrumb-current {
    color: hsl(0, 0%, 40%);
    font-weight: 500;
}

[data-theme="dark"] .breadcrumbs {
    color: hsl(0, 0%, 70%);
}

[data-theme="dark"] .breadcrumbs a {
    color: var(--color-primary-dark);
}

[data-theme="dark"] .breadcrumbs a:hover {
    color: #d0d0ff;
}

[data-theme="dark"] .breadcrumb-separator {
    color: hsl(0, 0%, 50%);
}

[data-theme="dark"] .breadcrumb-current {
    color: hsl(0, 0%, 80%);
}

/* Blog index transitions */
#blog-index {
    opacity: 1;
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
}

#blog-index.fade-out {
    opacity: 0;
    transform: translateY(20px);
}

#blog-index.fade-in {
    opacity: 0;
    transform: translateY(20px);
}

/* Post navigation */
.post-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 2px solid hsl(0, 0%, 90%);
    gap: 1rem;
}

[data-theme="dark"] .post-navigation {
    border-top-color: hsl(0, 0%, 30%);
}

.nav-button {
    background: hsl(218, 100%, 92%);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--color-primary-light);
    padding: 0.8rem 1.2rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-family);
    transition: all 0.3s ease-in-out;
    text-decoration: none;
    flex: 1;
    justify-content: center;
    max-width: 48%;
}

.nav-button:hover {
    background: hsl(218, 100%, 65%);
    color: hsl(218, 100%, 95%);
}

[data-theme="dark"] .nav-button {
    background: hsl(218, 50%, 25%);
    border-color: hsl(218, 60%, 50%);
    color: var(--color-primary-dark);
}

[data-theme="dark"] .nav-button:hover {
    background: hsl(218, 60%, 50%);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(176, 192, 255, 0.2);
}

.nav-button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

.nav-button .nav-icon {
    font-size: 1.3rem;
}

.nav-button .nav-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.nav-button .nav-label {
    font-size: 1rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-button .nav-title {
    font-size: 1.5rem;
    font-weight: 400;
}

.nav-button.prev-post {
    justify-content: flex-start;
}

.nav-button.next-post {
    justify-content: flex-end;
}

.nav-button.next-post .nav-text {
    align-items: flex-end;
}

/* Loading spinner */
.loading-spinner {
    text-align: center;
    padding: 3rem;
    font-size: 1.5rem;
    color: var(--font-light);
}

[data-theme="dark"] .loading-spinner {
    color: var(--font-dark);
}

/* Error message */
.error-message {
    background: #ffdddd;
    color: #cc0000;
    padding: 1rem;
    border-radius: 5px;
    margin: 2rem 0;
    font-family: var(--font-family);
}

[data-theme="dark"] .error-message {
    background: #4a1818;
    color: #ff6666;
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
    .back-button {
        font-size: 1.3rem;
        padding: 0.75rem 1rem;
        margin-top: 5rem;
    }

    .breadcrumbs {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
        padding-left: 0;
    }

    .breadcrumb-separator {
        margin: 0 0.3rem;
    }

    .nav-button {
        font-size: 0.95rem;
        padding: 0.7rem 0.9rem;
    }

    .nav-button .nav-label {
        font-size: 0.9rem;
    }

    .nav-button .nav-title {
        font-size: 1.25rem;
    }

    .post-navigation {
        margin-top: 3rem;
        gap: 0.75rem;
    }

    #post-article h1 {
        font-size: 2rem;
    }

    #post-article h2 {
        font-size: 1.6rem;
    }

    #post-article h3 {
        font-size: 1.3rem;
    }
}