:root {
    --bg: #0f1310;
    --bg-deep: #0b0e0c;
    --card: rgba(18, 22, 18, 0.75);
    --ink: #efe7db;
    --muted: #b6ad9f;
    --accent: #e0a26e;
    --accent-2: #6fb9a1;
    --line: rgba(239, 231, 219, 0.12);

    /* Fluid type scale */
    --text-sm: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-base: clamp(0.875rem, 0.8rem + 0.4vw, 1rem);
    --text-lg: clamp(1rem, 0.9rem + 0.5vw, 1.15rem);
    --text-xl: clamp(1.1rem, 1rem + 0.5vw, 1.4rem);
    --text-2xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.75rem);
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}


/* Reading progress */
.reading-progress {
    --progress: 0%;
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    z-index: 1000;
    background: var(--bg-deep);
}

.reading-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--progress);
    background: linear-gradient(90deg, var(--accent-2), var(--accent));
    box-shadow: 0 0 10px var(--accent), 0 0 5px var(--accent-2);
    transition: width 0.1s ease-out;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "SF Mono", "Fira Code", "Consolas", monospace;
    background:
        radial-gradient(1200px 600px at 5% -10%, rgba(111, 185, 161, 0.12), transparent 60%),
        radial-gradient(900px 500px at 90% 5%, rgba(224, 162, 110, 0.12), transparent 60%),
        linear-gradient(120deg, #0f1310 0%, #151c16 50%, #0b0e0c 100%);
    color: var(--ink);
    line-height: 1.7;
    min-height: 100vh;
    font-size: var(--text-base);
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 16px 16px;
    opacity: 0.3;
    pointer-events: none;
    z-index: 0;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.page {
    position: relative;
    z-index: 1;
    width: min(90%, 720px);
    margin: 0 auto;
    padding: 3rem 0 4rem;
}

.page.wide {
    width: min(92%, 900px);
}

/* Navigation */
header {
    margin-bottom: 3rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--line);
}

nav {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    font-size: var(--text-sm);
}

nav a {
    color: var(--muted);
}

nav a:hover,
nav a.active {
    color: var(--ink);
    text-decoration: none;
}

/* Footer */
footer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: var(--text-sm);
}

/* Sections */
section {
    margin-bottom: 3rem;
}

section h2 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-2);
    text-transform: lowercase;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--line);
}

/* Tags */
.tag {
    font-size: var(--text-sm);
    color: var(--muted);
    background: rgba(239, 231, 219, 0.05);
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
}

/* Home page intro */
.intro h1 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: 1rem;
}

.intro p {
    color: var(--muted);
    margin-bottom: 0.75rem;
}

.intro .links {
    margin-top: 1.5rem;
    display: flex;
    gap: 1.5rem;
    font-size: var(--text-sm);
}

/* Now section */
.now-content {
    color: var(--muted);
}

.now-content p {
    margin-bottom: 0.5rem;
}

/* Project list */
.project-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.project {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--line);
}

.project:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.project-main {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 1.25rem;
    transition: transform 0.2s ease;
}

.project-main:hover {
    transform: translateX(4px);
}

.project-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.project-details > p {
    color: var(--muted);
    line-height: 1.7;
    margin: 0;
    padding-left: calc(140px + 1.25rem);
}

.project.expanded .project-details {
    max-height: 200px;
    padding-top: 1rem;
}

.project-image {
    aspect-ratio: 16 / 10;
    border-radius: 6px;
    background: var(--bg-deep);
    overflow: hidden;
    border: 1px solid var(--line);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
    transition: opacity 0.2s ease;
}

.project:hover .project-image img {
    opacity: 1;
}

.project-image.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: var(--muted);
    background: linear-gradient(135deg, rgba(111, 185, 161, 0.15), rgba(224, 162, 110, 0.15));
}

.project-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.35rem;
    gap: 1rem;
}

.project h3 {
    font-size: 1rem;
    font-weight: 600;
}

.project h3 a {
    color: var(--ink);
}

.project h3 a:hover {
    color: var(--accent);
    text-decoration: none;
}

.project-status {
    font-size: 0.7rem;
    color: var(--accent-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-status.archived {
    color: var(--muted);
}

.project p {
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.project-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.github-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: var(--text-sm);
    color: var(--muted);
    padding: 0.25rem 0.6rem;
    border: 1px solid var(--line);
    border-radius: 4px;
    transition: border-color 0.2s, color 0.2s;
    white-space: nowrap;
}

.github-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    text-decoration: none;
}

/* Blog page header */
.blog-header h1 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.blog-header p {
    color: var(--muted);
    font-size: var(--text-sm);
}

/* Post list */
.post-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.post-item {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 1.5rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--line);
    transition: background 0.2s;
}

.post-item:hover {
    background: rgba(239, 231, 219, 0.02);
    text-decoration: none;
}

.post-date {
    color: var(--muted);
    font-size: 0.85rem;
}

.post-title {
    color: var(--ink);
}

.post-item:hover .post-title {
    color: var(--accent);
}

/* Single post */
.post-header {
    margin-bottom: 2.5rem;
}

.post-header .back {
    display: inline-block;
    color: var(--muted);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

.post-header .back:hover {
    color: var(--ink);
}

.post-header h1 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.post-header .meta {
    color: var(--muted);
    font-size: var(--text-sm);
}

/* Markdown content */
.content {
    line-height: 1.8;
}

.content h1,
.content h2,
.content h3 {
    font-weight: 600;
    margin: 2rem 0 1rem;
    color: var(--ink);
}

.content h1 { font-size: var(--text-xl); }
.content h2 { font-size: var(--text-lg); color: var(--accent-2); }
.content h3 { font-size: var(--text-base); }

.content p {
    margin-bottom: 1.25rem;
    color: var(--ink);
}

.content ul,
.content ol {
    margin: 1rem 0 1.25rem 1.5rem;
}

.content li {
    margin-bottom: 0.4rem;
}

.content code {
    background: rgba(239, 231, 219, 0.08);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9em;
}

.content pre {
    background: #0d1117;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 1rem 1.25rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.content pre code {
    background: none;
    padding: 0;
    font-size: 0.88rem;
    line-height: 1.5;
}

.content pre code.hljs {
    background: transparent;
    padding: 0;
}

/* Copy button */
.copy-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: rgba(239, 231, 219, 0.1);
    border: 1px solid var(--line);
    color: var(--muted);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: var(--text-sm);
    font-family: inherit;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s, background 0.2s;
}

.content pre:hover .copy-btn {
    opacity: 1;
}

.copy-btn:hover {
    background: rgba(239, 231, 219, 0.15);
    color: var(--ink);
}

.content blockquote {
    border-left: 2px solid var(--accent);
    padding-left: 1rem;
    margin: 1.5rem 0;
    color: var(--muted);
    font-style: italic;
}

.content hr {
    border: none;
    border-top: 1px solid var(--line);
    margin: 2rem 0;
}

.content img {
    max-width: 100%;
    border-radius: 6px;
    margin: 1.5rem auto 0.5rem;
    display: block;
}

/* Image captions - uses alt text via CSS or em after img */
.content img + em,
.content p:has(img) + p em:only-child {
    display: block;
    text-align: center;
    color: var(--muted);
    font-size: var(--text-sm);
    margin-bottom: 1.5rem;
    font-style: italic;
}

.content a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* Footnotes/citations */
.figure-ref {
    color: var(--accent);
    text-decoration: none;
    font-size: var(--text-sm);
}

.figure-ref:hover {
    text-decoration: underline;
}

.footnote-ref {
    color: var(--accent-2);
    text-decoration: none;
    font-size: var(--text-sm);
}

.footnote-ref:hover {
    text-decoration: underline;
}

.footnote {
    font-size: var(--text-sm);
    color: var(--muted);
    padding-left: 1.5rem;
    text-indent: -1.5rem;
    margin-bottom: 0.5rem;
}

.footnote-back {
    color: var(--accent-2);
    text-decoration: none;
    font-weight: 600;
}

.footnote-back:hover {
    text-decoration: underline;
}

/* Comments */
.comments {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--line);
}

.comments h2 {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--accent-2);
    text-transform: lowercase;
    margin-bottom: 1.5rem;
}

.giscus {
    margin-top: 1rem;
}

/* Post navigation */
.post-nav {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--line);
}

.post-nav-link {
    color: var(--muted);
    font-size: var(--text-sm);
    max-width: 45%;
    transition: color 0.2s;
}

.post-nav-link:hover {
    color: var(--accent);
    text-decoration: none;
}

.post-nav-link.prev {
    text-align: left;
}

.post-nav-link.next {
    text-align: right;
    margin-left: auto;
}

/* States */
.loading {
    color: var(--muted);
    font-style: italic;
}

.error {
    color: var(--accent);
}

/* Responsive */
@media (max-width: 600px) {
    .page {
        width: 92%;
        padding: 1.5rem 0 2.5rem;
    }

    .page.wide {
        width: 94%;
    }

    .project-main {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .project-image {
        max-width: 180px;
    }

    .project-header {
        flex-direction: column;
        gap: 0.25rem;
    }

    .project-details > p {
        padding-left: 0;
    }

    .post-item {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }

    .post-date {
        order: 2;
        font-size: 0.8rem;
    }

    .post-nav {
        flex-direction: column;
        gap: 1rem;
    }

    .post-nav-link {
        max-width: 100%;
    }

    .post-nav-link.next {
        text-align: left;
    }
}