@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;1,300;1,400&family=Lora:ital,wght@0,400;0,500;1,400&family=Inter:wght@400;500&display=swap');

/* -----------------------------------------------
   Variables
----------------------------------------------- */

:root {
    /* typography */
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Lora', Georgia, serif;
    --font-ui: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

    /* colours */
    --color-ink: #3d3830;
    --color-title: #111;
    --color-muted: #aaa;
    --color-subtle: #6b6157;
    --color-mid: #555;
    --color-rule: #d4cfc8;
    --color-border: #ece9e3;
    --color-tag-bg: #f3f0eb;
    --color-tag-text: #7a7060;
    --color-code-bg: #f5f2ed;
    --color-code-fg: #5a4a3a;
    --color-marker: #b0a898;
    --color-error-text: #7a2e2e;
    --color-error-bg: #fdf3f3;
    --color-error-border: #e8c9c9;
    --color-success-text: #2e5c3a;
    --color-success-bg: #f3fdf5;
    --color-success-border: #c9e8d0;

    /* spacing */
    --gap-xs: 0.35rem;
    --gap-sm: 0.5rem;
    --gap-md: 1.4rem;
    --gap-lg: 2rem;
    --gap-xl: 2.5rem;
}

/* -----------------------------------------------
   Base
----------------------------------------------- */

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

html {
    font-size: 18px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-ui);
    background: #ffffff;
    color: var(--color-ink);
    line-height: 1.75;
    padding: 3rem 1.5rem 6rem;
    max-width: 720px;
    margin: 0 auto;
}

hr {
    border-color: var(--color-border);
}

a {
    color: inherit;
    text-decoration: underline;
    text-decoration-color: var(--color-rule);
    text-underline-offset: 3px;
    transition: text-decoration-color 0.15s;
}

a:hover {
    text-decoration-color: var(--color-mid);
}

/* -----------------------------------------------
   Blog header (listing view)
----------------------------------------------- */

.blog-title {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 300;
    letter-spacing: 0.04em;
    color: var(--color-title);
    line-height: 1.15;
    margin-bottom: 0.3rem;
}

.blog-description {
    font-family: 'EB Garamond', Georgia, serif;
    font-size: 1.05rem;
    font-weight: 400;
    font-style: italic;
    color: var(--color-muted);
    margin-bottom: 1.8rem;
}

.header-rule,
.article-rule {
    border: none;
    border-top: 1px solid var(--color-rule);
    margin-bottom: var(--gap-xl);
}

/* -----------------------------------------------
   Article listing
----------------------------------------------- */

.post-card {
    margin-bottom: var(--gap-lg);
    padding-bottom: var(--gap-lg);
    border-bottom: 1px solid var(--color-border);
}

.post-card:last-of-type {
    border-bottom: none;
}

.post-link {
    text-decoration: none;
    color: inherit;
}

.post-link:hover .post-title {
    color: var(--color-mid);
}

.post-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: 0.01em;
    color: var(--color-title);
    margin-bottom: 0.4rem;
    transition: color 0.15s ease;
}

/* -----------------------------------------------
   Search
----------------------------------------------- */

#blog-header {
    position: relative;
}

#search {
    position: fixed;
    top: 1.2rem;
    right: 1.5rem;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--color-ink);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-rule);
    padding: 0.2rem 0;
    width: 130px;
    outline: none;
    transition: width 0.2s ease, border-color 0.15s;
}

#search::placeholder {
    color: var(--color-muted);
}

#search:focus {
    width: 180px;
    border-color: var(--color-marker);
}

/* -----------------------------------------------
   Article page title
----------------------------------------------- */

.article-cover {
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: var(--gap-lg);
}

.article-title {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 300;
    letter-spacing: 0.02em;
    color: var(--color-title);
    line-height: 1.2;
    margin-bottom: 0.6rem;
}

/* -----------------------------------------------
   Meta line (categories + date)
----------------------------------------------- */

.post-meta,
.article-meta {
    font-size: 0.82rem;
    color: var(--color-muted);
    letter-spacing: 0.01em;
    line-height: 1.4;
    margin-bottom: var(--gap-xs);
}

.tag {
    background: var(--color-tag-bg);
    color: var(--color-tag-text);
    padding: 2px 8px;
    border-radius: 2px;
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    margin-right: 4px;
}

/* -----------------------------------------------
   Article body content
----------------------------------------------- */

.article-content {
    font-family: var(--font-body);
    font-size: 1.08rem;
    line-height: 1.85;
    color: var(--color-ink);
}

.article-content p {
    font-size: 1.08rem;
    color: var(--color-ink);
    line-height: 1.85;
    margin-bottom: var(--gap-md);
}

.article-content h2,
.article-content h3,
.article-content h4 {
    font-family: var(--font-serif);
    font-weight: 400;
    color: var(--color-title);
    margin: 2.2rem 0 0.7rem;
    line-height: 1.25;
}

.article-content h2 {
    font-size: 1.6rem;
}

.article-content h3 {
    font-size: 1.5rem;
}

.article-content h4 {
    font-size: 1.1rem;
    color: var(--color-mid);
}

/* --- blockquote --- */

.article-content blockquote {
    border-left: 3px solid var(--color-rule);
    margin: var(--gap-lg) 0;
    padding: 0.2rem 0 0.2rem 1.4rem;
    color: var(--color-subtle);
    font-size: 1.18rem;
}

.article-content blockquote p {
    margin-bottom: var(--gap-sm);
}

.article-content blockquote p:last-child {
    margin-bottom: 0;
}

.article-content blockquote cite,
.article-content blockquote footer {
    display: block;
    margin-top: 0.6rem;
    font-size: 0.85rem;
    font-style: normal;
    color: var(--color-muted);
    letter-spacing: 0.01em;
}

/* --- images --- */

.article-content img,
.article-content video {
    display: block;
    max-width: 100%;
    height: auto;
    margin: var(--gap-lg) auto;
    border: 1px solid var(--color-marker);
    border-radius: 6px;
    overflow: hidden;
}

.article-content figure {
    margin: var(--gap-lg) 0;
}

.article-content figcaption {
    text-align: center;
    font-size: 0.82rem;
    color: var(--color-muted);
    margin-top: var(--gap-sm);
    font-style: italic;
    font-family: var(--font-ui);
}

/* --- inline code --- */

.article-content code {
    font-family: var(--font-mono);
    font-size: 0.83em;
    background: var(--color-code-bg);
    padding: 2px 6px;
    border-radius: 3px;
    color: var(--color-code-fg);
    word-break: break-word;
    overflow-wrap: break-word;
}

/* --- code blocks (highlight.js takes over background/colors) --- */

.article-content pre {
    margin: 1.8rem 0;
    border-radius: 6px;
    overflow-x: auto;
    font-size: 0.96rem;
    line-height: 1.65;
    border: 1px solid var(--color-border);
}

.article-content pre code {
    background: none;
    padding: 0;
    color: inherit;
    font-size: inherit;
    border-radius: 0;
}

/* hljs padding wrapper */
.article-content pre>code.hljs {
    padding: 1.2rem 1.4rem;
}

/* --- tables --- */

.article-content table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-ui);
    font-size: 0.9rem;
    margin: var(--gap-lg) 0;
}

.article-content th,
.article-content td {
    padding: 0.6rem 1rem;
    border: 1px solid var(--color-border);
    text-align: left;
    vertical-align: middle;
}

.article-content th {
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-muted);
    background: var(--color-tag-bg);
}

.article-content tr:hover td {
    background: color-mix(in srgb, var(--color-border) 40%, transparent);
}

/* --- dividers --- */

.article-content hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--gap-xl) 0;
}

/* --- lists --- */

.article-content ul,
.article-content ol {
    font-family: var(--font-body);
    font-size: 1.08rem;
    color: var(--color-ink);
    line-height: 1.85;
    padding-left: 1.5rem;
    margin-bottom: var(--gap-md);
}

.article-content ul {
    list-style-type: disc;
}

.article-content ol {
    list-style-type: decimal;
}

.article-content li {
    margin-bottom: var(--gap-xs);
}

.article-content li::marker {
    color: var(--color-marker);
}

/* nested lists */
.article-content li>ul,
.article-content li>ol {
    margin-top: var(--gap-xs);
    margin-bottom: 0;
}

.article-content table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: max-content;
    max-width: 100%;
}

/* -----------------------------------------------
   Miscellaneous
----------------------------------------------- */

.icon {
    display: inline-block;
    width: 14px;
    height: 14px;
    vertical-align: middle;
    stroke-width: 2;
}

.back {
    display: inline-flex;
    gap: 6px;
    align-items: center;
    margin-top: var(--gap-xl);
    font-size: 0.82rem;
    color: var(--color-muted);
    text-decoration: none;
    border-bottom: 1px solid var(--color-rule);
    padding-bottom: 1px;
    transition: color 0.15s, border-color 0.15s;
}

.back:hover {
    color: var(--color-mid);
    border-color: #999;
}

/* -----------------------------------------------
   Comments
----------------------------------------------- */

/* -----------------------------------------------
   Comments
----------------------------------------------- */

.comments {
    margin-top: var(--gap-xl);
    padding-top: var(--gap-lg);
    border-top: 1px solid var(--color-border);
}

.comments h3,
.comments h4 {
    font-family: var(--font-serif);
    font-weight: 400;
    color: var(--color-title);
    margin-bottom: var(--gap-md);
}

/* comment tree */
.comment-list {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.comment {
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
}

.comment:last-child {
    border-bottom: none;
}

/* nested comments */
.comment .comment-list {
    margin-left: 1.4rem;
    margin-top: 0.8rem;
    padding-left: 1rem;
    border-left: 1px solid var(--color-border);
}

/* meta line */
.comment-meta {
    font-size: 0.78rem;
    color: var(--color-muted);
    margin-bottom: 0.4rem;
}

.comment-meta strong {
    color: var(--color-ink);
    font-weight: 500;
}

.comment-date {
    font-size: 0.7rem;
    color: var(--color-subtle);
}

/* content */
.comment p {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-ink);
    margin-bottom: 0.6rem;
}

/* reply button */
.comment button {
    font-family: var(--font-ui);
    font-size: 0.75rem;
    background: none;
    border: 1px solid var(--color-border);
    color: var(--color-muted);
    padding: 0.25rem 0.6rem;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.15s;
}

.comment button:hover {
    border-color: var(--color-mid);
    color: var(--color-ink);
}

/* comment form */
.comments form {
    margin-top: var(--gap-lg);
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.comments input,
.comments textarea {
    font-family: var(--font-ui);
    font-size: 0.95rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 0.6rem 0.75rem;
    outline: none;
    color: var(--color-ink);
}

.comments textarea {
    min-height: 120px;
    resize: vertical;
}

.comments input:focus,
.comments textarea:focus {
    border-color: var(--color-marker);
}

/* submit button */
.comments form button[type="submit"] {
    align-self: flex-start;
    background: var(--color-ink);
    color: #fff;
    border: none;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.15s;
}

.comments form button[type="submit"]:hover {
    background: var(--color-mid);
}

.comment-error {
    font-family: var(--font-ui);
    font-size: 0.82rem;
    color: var(--color-error-text);
    background: var(--color-error-bg);
    border: 1px solid var(--color-error-border);
    border-radius: 4px;
    padding: 0.6rem 0.9rem;
    margin-top: 0.4rem;
    border-left: 3px solid var(--color-error-text);
    opacity: 0;
}

.comment-error.visible {
    opacity: 1;
}

.inline-reply {
    margin-top: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.inline-reply textarea {
    font-family: var(--font-ui);
    font-size: 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 0.5rem;
    min-height: 80px;
}

.inline-reply input {
    font-family: var(--font-ui);
    font-size: 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 0.4rem 0.5rem;
}

.inline-reply button {
    align-self: flex-start;
    background: var(--color-ink);
    color: white;
    border: none;
    padding: 0.4rem 0.9rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
}

.inline-reply button:hover {
    background: var(--color-mid);
}

/* -----------------------------------------------
   Reactions
----------------------------------------------- */
.reactions {
    margin-bottom: var(--gap-sm);
    position: relative;
}

.reaction-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.reaction-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;

    font-family: var(--font-ui);
    font-size: 0.88rem;

    background: transparent;
    color: var(--color-tag-text);

    border: none;
    border-radius: 8px;

    padding: 0.4rem 0.6rem;

    cursor: pointer;

    transition:
        background 0.15s ease,
        color 0.15s ease,
        transform 0.12s ease;
}

.reaction-btn:hover {
    background: color-mix(in srgb, var(--color-border) 65%, transparent);
    transform: translateY(-1px);
}

.reaction-btn.reacted {
    background: color-mix(in srgb, var(--color-marker) 14%, transparent);
    color: var(--color-ink);
}

.reaction-emoji {
    font-size: 1.3rem;
    line-height: 1;
}

.reaction-count {
    font-size: 0.85rem;
    color: var(--color-muted);
}

.reaction-add {
    font-family: var(--font-ui);
    font-size: 1.2rem;
    line-height: 1;

    background: transparent;
    border: none;

    width: 2.1rem;
    height: 2.1rem;

    border-radius: 6px;

    cursor: pointer;
    color: var(--color-muted);

    display: inline-flex;
    align-items: center;
    justify-content: center;

    transition:
        background 0.15s ease,
        color 0.15s ease,
        transform 0.2s ease;
}

.reaction-add:hover {
    background: color-mix(in srgb, var(--color-border) 65%, transparent);
    color: var(--color-ink);
    transform: translateY(-1px);
}

.reaction-bar.expanded .reaction-add {
    transform: rotate(45deg);
}

.reaction-extra {
    display: flex;
    gap: 0.35rem;

    overflow: hidden;

    max-width: 0;
    opacity: 0;

    transform: translateX(-6px);

    transition:
        max-width 0.28s ease,
        opacity 0.18s ease,
        transform 0.18s ease;
}

.reaction-bar.expanded .reaction-extra {
    max-width: 500px;
    opacity: 1;
    transform: translateX(0);
}

.extra-btn {
    opacity: 0;
    transform: translateX(-8px);

    transition:
        opacity 0.2s ease,
        transform 0.2s ease;
}

.reaction-bar.expanded .extra-btn {
    opacity: 1;
    transform: translateX(0);
}

/* -----------------------------------------------
   Scrollbars
----------------------------------------------- */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--color-rule);
    border-radius: 99px;
    border: 2px solid transparent;
    background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-marker);
    background-clip: padding-box;
}

/* firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-rule) transparent;
}

/* -----------------------------------------------
   Responsive
----------------------------------------------- */

@media (min-width: 980px) {
    .back-top {
        position: fixed;
        top: 0px;
        left: 1.5rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 16px;
    }

    #search {
        display: none;
    }

    .blog-title {
        font-size: 2.2rem;
    }

    .article-title {
        font-size: 1.7rem;
    }

    .toc {
        display: none;
    }

    body {
        padding: 2rem 1.2rem 4rem;
    }
}

/* -----------------------------------------------
   Dark mode
----------------------------------------------- */

@media (prefers-color-scheme: dark) {
    :root {
        --color-ink: #c9c3b8;
        --color-title: #ede8e0;
        --color-muted: #6b6560;
        --color-subtle: #8c8278;
        --color-mid: #a09890;
        --color-rule: #3a3630;
        --color-border: #2e2b27;
        --color-tag-bg: #252220;
        --color-tag-text: #9a907e;
        --color-code-bg: #1e1c19;
        --color-code-fg: #c8b89a;
        --color-marker: #5a5248;
        --color-error-text: #c98080;
        --color-error-bg: #1e1515;
        --color-error-border: #5a2e2e;
        --color-success-text: #80c898;
        --color-success-bg: #131e16;
        --color-success-border: #2e5a3a;
    }

    body {
        background: #171512;
    }

    .comments input,
    .comments textarea,
    .inline-reply textarea,
    .inline-reply input {
        background: var(--color-code-bg);
        color: var(--color-ink);
    }

    .comments form button[type="submit"],
    .inline-reply button {
        background: var(--color-ink);
        color: #171512;
    }

    .comments form button[type="submit"]:hover,
    .inline-reply button:hover {
        background: var(--color-mid);
    }

    .reaction-picker {
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
    }
}