/* ==========================================================
   bl4cksku11 — blog shared styles
   ========================================================== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg:     #030303;
  --fg:     #ffffff;
  --mid:    #aaaaaa;
  --dim:    #444444;
  --border: #2e2e2e;
  --red:    #cc1111;
  --red-hi: #e82020;
  --code-bg: #0a0a0a;
}

html, body {
  width: 100%;
  min-height: 100%;
  /* Prevent any descendant from creating horizontal overflow that would
     allow pinch-zoom to reveal layout beyond the viewport. `clip` is
     the modern equivalent of `hidden` and cannot be scrolled by JS;
     `hidden` is declared first as fallback for older browsers. */
  overflow-x: hidden;
  overflow-x: clip;
  max-width: 100%;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Space Mono', 'Courier New', monospace;
  min-height: 100vh;
  padding: 3rem 1.5rem 6rem;
  overflow-x: hidden;
  position: relative;
  line-height: 1.6;
}

/* ── READING PROGRESS BAR ── */
/* Sits at the bottom edge of the topbar (nested inside it) */
.reading-progress {
  position: relative;
  width: 100%;
  height: 2px;
  background: rgba(46, 46, 46, 0.35);
  pointer-events: none;
}

.reading-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--red);
  box-shadow: 0 0 8px rgba(204, 17, 17, 0.6);
  transition: width 0.08s linear;
  position: relative;
}

/* Subtle glowing tip on the leading edge */
.reading-progress-bar::after {
  content: '';
  position: absolute;
  top: -1px;
  right: -3px;
  width: 6px;
  height: 4px;
  background: var(--red-hi);
  box-shadow: 0 0 6px var(--red-hi);
  opacity: 0.9;
}

/* Scanlines */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.07) 2px,
    rgba(0,0,0,0.07) 4px
  );
  pointer-events: none;
  z-index: 300;
}

/* Background canvas */
#bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.045;
}

/* ── TOPBAR (fixed header) ── */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 350;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, backdrop-filter 0.25s ease;
  pointer-events: none; /* let canvas behind catch wheel events */
}

.topbar.scrolled {
  background: rgba(3, 3, 3, 0.88);
  -webkit-backdrop-filter: blur(10px) saturate(1.2);
  backdrop-filter: blur(10px) saturate(1.2);
  border-bottom-color: var(--border);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.6rem;
  pointer-events: auto;
}

/* ── LANG TOGGLE ── */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  font-family: 'Space Mono', monospace;
}

.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.3rem 0.5rem;
  font-family: inherit;
  font-size: inherit;
  letter-spacing: inherit;
  text-transform: uppercase;
  color: var(--dim);
  transition: color 0.2s;
  position: relative;
}

.lang-btn.active { color: var(--fg); }

.lang-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0.5rem; right: 0.5rem;
  height: 1px;
  background: var(--red);
}

.lang-sep { color: var(--border); font-size: 0.65rem; }

/* ── BACK LINK / NAV ── */
.topnav {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.topnav a {
  color: var(--mid);
  text-decoration: none;
  transition: color 0.2s;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.topnav a::before { content: '‹ '; color: var(--red); }
.topnav a:hover   { color: var(--fg); border-color: var(--red); }

/* ── WRAP ── */
.wrap {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
}

/* ── PAGE HEADER ── */
.page-header { margin-bottom: 2.4rem; }

.page-header .crumb {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 0.6rem;
}

.page-header h1 {
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.page-header .subtitle {
  margin-top: 0.8rem;
  color: var(--mid);
  font-size: 0.88rem;
  letter-spacing: 0.05em;
}

.divider {
  width: 100%;
  height: 1px;
  background: var(--border);
  margin: 2rem 0;
  position: relative;
  overflow: hidden;
}

.divider::after {
  content: '';
  position: absolute;
  top: 0; left: -50%;
  width: 35%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--red), transparent);
  animation: sweep 4s ease-in-out infinite;
}

@keyframes sweep {
  0%   { left: -35%; opacity: 0; }
  8%   { opacity: 1; }
  92%  { opacity: 1; }
  100% { left: 110%; opacity: 0; }
}

/* ── SEARCH + FILTERS ── */
.controls { margin-bottom: 2rem; }

.search-row {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.015);
  padding: 0 0.9rem;
  transition: border-color 0.2s;
}
.search-row:focus-within { border-color: var(--fg); }

.search-row::before {
  content: '›';
  color: var(--red);
  margin-right: 0.6rem;
  font-weight: 700;
}

.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--fg);
  font-family: inherit;
  font-size: 0.9rem;
  padding: 0.85rem 0;
  letter-spacing: 0.04em;
}

.search-input::placeholder {
  color: var(--dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
}

.tag {
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--mid);
  border: 1px solid var(--border);
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  background: none;
  font-family: inherit;
  transition: all 0.15s;
}

.tag::before { content: '#'; color: var(--red); margin-right: 0.25rem; }
.tag:hover   { color: var(--fg); border-color: var(--mid); }
.tag.active  { color: var(--bg); background: var(--fg); border-color: var(--fg); }
.tag.active::before { color: var(--red); }

/* ── POST LIST ── */
.post-list { display: flex; flex-direction: column; gap: 0.4rem; }

.post-card {
  display: block;
  padding: 1.4rem 1.4rem;
  border: 1px solid var(--border);
  text-decoration: none;
  color: var(--fg);
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, background 0.2s;
}

/* When the card has a cover image, drop padding at the top so the
   banner sits flush, and add inner body padding instead. */
.post-card.has-cover { padding: 0; }
.post-card.has-cover .post-body { padding: 1.3rem 1.4rem 1.4rem; }

.post-cover {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 7;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  background: #050505;
}

.post-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(0.18) contrast(1.04);
  transition: transform 0.4s ease, filter 0.3s ease;
}

.post-card:hover .post-cover img {
  transform: scale(1.025);
  filter: grayscale(0) contrast(1.1);
}

/* Subtle red corner accent on the cover bottom-right (consistent with
   the corner brackets on hover) */
.post-cover::after {
  content: '';
  position: absolute;
  inset: auto 0 0 auto;
  width: 30%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--red));
  opacity: 0;
  transition: opacity 0.25s;
}
.post-card:hover .post-cover::after { opacity: 1; }

.post-card:hover {
  border-color: var(--fg);
  background: rgba(255,255,255,0.025);
}

.post-card::before, .post-card::after {
  content: '';
  position: absolute;
  width: 9px;
  height: 9px;
  opacity: 0;
  transition: opacity 0.2s;
}
.post-card::before {
  top: 6px; left: 6px;
  border-top: 1px solid var(--red);
  border-left: 1px solid var(--red);
}
.post-card::after {
  bottom: 6px; right: 6px;
  border-bottom: 1px solid var(--red);
  border-right: 1px solid var(--red);
}
.post-card:hover::before, .post-card:hover::after { opacity: 1; }

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 0.5rem;
}

.post-meta .reading-time { color: var(--dim); }
.post-meta .dot { color: var(--border); }

.post-title {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
  color: var(--fg);
}

.post-excerpt {
  font-size: 0.85rem;
  color: var(--mid);
  line-height: 1.7;
  margin-bottom: 0.8rem;
}

.post-authors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
  align-items: center;
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* ── AUTHOR CHIP / CARD ── */
.author-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--mid);
  text-transform: none;
  border: 1px solid var(--border);
  padding: 0.25rem 0.55rem 0.25rem 0.25rem;
  background: rgba(255,255,255,0.015);
  transition: border-color 0.2s, color 0.2s;
}

.post-card:hover .author-chip { border-color: var(--mid); color: var(--fg); }

.author-avatar {
  width: 22px;
  height: 22px;
  border-radius: 1px;
  overflow: hidden;
  background: #0d0d0d;
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.author-avatar-lg {
  width: 48px;
  height: 48px;
}

.author-initials {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--red);
  font-family: 'Space Mono', monospace;
}

.author-avatar-lg .author-initials {
  font-size: 1rem;
}

.author-name {
  font-weight: 700;
  color: var(--fg);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

.author-handle {
  font-size: 0.7rem;
  color: var(--red);
  letter-spacing: 0.05em;
  margin-top: 0.1rem;
}

.author-role {
  font-size: 0.68rem;
  color: var(--mid);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 0.2rem;
}

/* Author block on the article (post.html) */
.article-authors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0.4rem 0 0.4rem;
}

.author-card {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.7rem 1rem 0.7rem 0.7rem;
  background: rgba(255,255,255,0.02);
  transition: border-color 0.2s, background 0.2s;
  position: relative;
}

a.author-card:hover {
  border-color: var(--fg);
  background: rgba(255,255,255,0.04);
}

a.author-card::after {
  content: '↗';
  position: absolute;
  top: 0.45rem;
  right: 0.55rem;
  font-size: 0.7rem;
  color: var(--red);
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
}
a.author-card:hover::after { opacity: 1; transform: translateX(2px) translateY(-2px); }

.author-card .author-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.author-card .author-name {
  font-size: 0.92rem;
  letter-spacing: 0.02em;
}

.post-tags .tag {
  cursor: default;
  pointer-events: none;
  font-size: 0.62rem;
  padding: 0.2rem 0.5rem;
}

.empty-state {
  padding: 3rem 1rem;
  text-align: center;
  color: var(--dim);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: 1px dashed var(--border);
}

/* ── ARTICLE / POST PAGE ── */
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 1.1rem;
}

.article-meta .reading-time { color: var(--dim); }
.article-meta .dot { color: var(--border); }

.article-title {
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

/* Hero cover image at the top of an article */
.article-cover {
  width: 100%;
  aspect-ratio: 21 / 9;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #050505;
  margin-bottom: 1.6rem;
  position: relative;
}

.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Corner brackets matching the rest of the design */
.article-cover::before, .article-cover::after {
  content: '';
  position: absolute;
  width: 11px;
  height: 11px;
  z-index: 2;
}
.article-cover::before {
  top: 6px; left: 6px;
  border-top: 1px solid var(--red);
  border-left: 1px solid var(--red);
}
.article-cover::after {
  bottom: 6px; right: 6px;
  border-bottom: 1px solid var(--red);
  border-right: 1px solid var(--red);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 2rem;
}

.article-tags .tag { cursor: default; pointer-events: none; }

/* ── MARKDOWN CONTENT ── */
.content {
  font-size: 0.95rem;
  line-height: 1.85;
  color: #d8d8d8;
  /* Long unbreakable strings (URLs, hashes, file paths) must wrap to
     prevent horizontal overflow on narrow viewports. */
  overflow-wrap: anywhere;
  word-wrap: break-word;
  min-width: 0;
}

.content > * + * { margin-top: 1.1rem; }

.content p, .content li, .content blockquote, .content figcaption {
  overflow-wrap: anywhere;
  word-wrap: break-word;
}

.content h1, .content h2, .content h3, .content h4 {
  color: var(--fg);
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-top: 2.2rem;
}

.content h1 { font-size: 1.8rem; }
.content h2 {
  font-size: 1.4rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}
.content h2::before { content: '// '; color: var(--red); }
.content h3 { font-size: 1.15rem; }
.content h3::before { content: '› '; color: var(--red); }
.content h4 { font-size: 1rem; color: var(--mid); }

.content p { color: #d8d8d8; }

.content a {
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--red);
  transition: color 0.15s, background 0.15s;
  padding-bottom: 1px;
  /* Allow long URLs used as link text to wrap on narrow screens */
  word-break: break-word;
  overflow-wrap: anywhere;
}
.content a:hover { background: var(--red); color: var(--fg); }

.content strong { color: var(--fg); font-weight: 700; }
.content em     { color: var(--fg); font-style: italic; }

.content ul, .content ol { padding-left: 1.5rem; }
.content li { margin: 0.3rem 0; color: #d8d8d8; }
.content li::marker { color: var(--red); }

.content blockquote {
  border-left: 2px solid var(--red);
  padding: 0.4rem 0 0.4rem 1.2rem;
  color: var(--mid);
  font-style: italic;
  background: rgba(204,17,17,0.04);
}

.content hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 2.4rem 0;
}

/* Inline code */
.content code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  color: var(--red-hi);
  padding: 0.1rem 0.4rem;
  font-size: 0.85em;
  font-family: 'Space Mono', monospace;
  border-radius: 2px;
  /* SHA256, long IDs and paths must break — they can't overflow the body */
  word-break: break-all;
  overflow-wrap: anywhere;
}

/* Code blocks */
.content pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 1.1rem 1.2rem;
  overflow-x: auto;
  font-size: 0.83rem;
  line-height: 1.55;
  position: relative;
  max-width: 100%;
  /* Prevent the pre itself from forcing the page wider when it has
     a single very long line. The internal scroll handles the rest. */
  min-width: 0;
}

.content pre::before {
  content: attr(data-lang);
  position: absolute;
  top: 0.5rem;
  right: 0.8rem;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim);
}

.content pre code {
  background: none;
  border: none;
  padding: 0;
  color: #e0e0e0;
  font-size: inherit;
  border-radius: 0;
}

/* Horizontal-scroll wrapper added in JS around every <table>. Lets long
   content (SHA256 hashes, big integers, file lists) overflow horizontally
   without pushing the article container. The right-edge gradient is a
   visual hint that more content exists when the table is scrollable. */
.content .table-scroll {
  overflow-x: auto;
  margin: 1.1rem 0;
  border: 1px solid var(--border);
  background:
    linear-gradient(to right, transparent 0, transparent calc(100% - 24px), rgba(204,17,17,0.08) 100%);
  background-attachment: local;
  -webkit-overflow-scrolling: touch;
}

.content .table-scroll::-webkit-scrollbar { height: 6px; }
.content .table-scroll::-webkit-scrollbar-track { background: transparent; }
.content .table-scroll::-webkit-scrollbar-thumb { background: var(--border); }
.content .table-scroll::-webkit-scrollbar-thumb:hover { background: var(--red); }

.content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
  margin: 0;
}

.content .table-scroll > table { border: none; }

.content table th, .content table td {
  border: 1px solid var(--border);
  padding: 0.45rem 0.7rem;
  text-align: left;
  vertical-align: top;
  /* Allow long unbreakable strings (SHA256, paths) to wrap when there
     is space, so the scroll only kicks in when truly needed. */
  overflow-wrap: anywhere;
  word-break: break-word;
}

.content table th {
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.66rem;
  white-space: nowrap;
  background: rgba(204,17,17,0.04);
}

/* Cells whose content is a hash, command, or other inline-code string get
   monospace+slightly tighter spacing automatically (already monospace via
   body, but ensure the size matches inline code). */
.content table code {
  font-size: 0.95em;
  padding: 0.05rem 0.3rem;
}

.content img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
  display: block;
  margin: 0.4rem auto;
  background: #050505;
}

/* Embedded video — same look as images, browser-native controls */
.content video {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0.6rem auto;
  border: 1px solid var(--border);
  background: #050505;
  width: 100%;
}

/* Inline audio player */
.content audio {
  display: block;
  width: 100%;
  margin: 0.6rem auto;
  filter: invert(0.85) hue-rotate(180deg); /* tame default light theme players */
}

/* Figure + caption (built in JS when MD provides title attr) */
.content figure {
  margin: 1.4rem 0;
  text-align: center;
}
.content figure figcaption {
  margin-top: 0.5rem;
  font-size: 0.78rem;
  color: var(--mid);
  letter-spacing: 0.05em;
  font-style: italic;
}
.content figure figcaption::before {
  content: '› ';
  color: var(--red);
  font-style: normal;
}

/* ── ARTICLE FOOTER ── */
.article-footer {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--mid);
}

.article-footer a {
  color: var(--mid);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.article-footer a:hover { color: var(--fg); border-color: var(--red); }

.article-footer .back::before { content: '‹ '; color: var(--red); }
.article-footer .top::after   { content: ' ↑'; color: var(--red); }

/* ── LOADING / ERROR ── */
.loading, .error-box {
  padding: 3rem 1rem;
  text-align: center;
  color: var(--dim);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: 1px dashed var(--border);
}

.error-box { color: var(--red); border-color: var(--red); }

/* ── HIGHLIGHT.JS overrides (atom-one-dark style, customized) ── */
.hljs                                { color: #e0e0e0; background: transparent; }
.hljs-comment, .hljs-quote           { color: #5c5c5c; font-style: italic; }
.hljs-keyword, .hljs-selector-tag    { color: #cc1111; }
.hljs-string, .hljs-attr             { color: #aaaaaa; }
.hljs-number, .hljs-literal          { color: #e82020; }
.hljs-title, .hljs-section,
.hljs-function .hljs-title           { color: #ffffff; font-weight: 700; }
.hljs-variable, .hljs-template-variable { color: #d8d8d8; }
.hljs-built_in, .hljs-type           { color: #cc1111; }
.hljs-meta, .hljs-symbol             { color: #777777; }
.hljs-deletion                       { color: #cc1111; }
.hljs-addition                       { color: #ffffff; }

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in { animation: fadeUp 0.45s ease forwards; }

/* ── RESPONSIVE ── */

/* Prevent iOS text auto-resize on rotation */
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

/* Tablets / small laptops */
@media (max-width: 768px) {
  .wrap { max-width: 100%; }
  body  { padding: 3rem 1.4rem 5rem; }

  .article-cover { aspect-ratio: 16 / 9; }
}

/* Phones */
@media (max-width: 600px) {
  body { padding: 4.2rem 1rem 4rem; }

  .topbar-inner { padding: 0.8rem 1rem; }
  .topnav, .lang-toggle { font-size: 0.62rem; }
  .lang-btn { padding: 0.3rem 0.4rem; }

  /* Header / list page */
  .page-header { margin-bottom: 1.8rem; }
  .page-header h1 { font-size: clamp(1.7rem, 7vw, 2.4rem); }
  .page-header .subtitle { font-size: 0.82rem; }

  .divider { margin: 1.6rem 0; }

  /* Search + filters */
  .controls { margin-bottom: 1.5rem; }
  .search-input { font-size: 0.88rem; padding: 0.8rem 0; }
  .search-input::placeholder { font-size: 0.7rem; }

  /* Tag chips: enlarge for touch (≥40px tap target) */
  .tag {
    font-size: 0.7rem;
    padding: 0.5rem 0.75rem;
  }

  /* Post cards */
  .post-card { padding: 1.1rem 1.1rem; }
  .post-card.has-cover { padding: 0; }
  .post-card.has-cover .post-body { padding: 1rem 1.1rem 1.1rem; }
  .post-cover { aspect-ratio: 16 / 8; }
  .post-title { font-size: 1.05rem; }
  .post-excerpt { font-size: 0.82rem; line-height: 1.65; }

  /* Author chips on cards */
  .post-authors { gap: 0.4rem; }
  .author-chip  { font-size: 0.66rem; padding: 0.22rem 0.5rem 0.22rem 0.22rem; }
  .author-avatar { width: 20px; height: 20px; }

  /* Article (post) */
  .article-cover { aspect-ratio: 16 / 9; margin-bottom: 1.2rem; }
  .article-meta { gap: 0.55rem; font-size: 0.66rem; }
  .article-title { line-height: 1.18; }
  .article-tags { margin-bottom: 1.4rem; }
  .article-authors { gap: 0.5rem; margin: 0.6rem 0 0.4rem; }

  /* Author cards become full-width on phones */
  .author-card {
    flex: 1 1 100%;
    padding: 0.7rem 0.9rem 0.7rem 0.65rem;
  }
  .author-card .author-name { font-size: 0.88rem; }
  /* No hover on touch — keep the link arrow visible */
  a.author-card::after { opacity: 1; transform: none; }
  .author-avatar-lg { width: 42px; height: 42px; }

  /* Markdown body */
  .content { font-size: 0.9rem; line-height: 1.75; }
  .content > * + * { margin-top: 0.95rem; }
  .content h1 { font-size: 1.45rem; }
  .content h2 { font-size: 1.22rem; margin-top: 1.8rem; }
  .content h3 { font-size: 1.05rem; margin-top: 1.4rem; }
  .content h4 { font-size: 0.95rem; }
  .content blockquote { padding-left: 1rem; }

  /* Code: keep readable but compact */
  .content pre  { font-size: 0.78rem; padding: 0.95rem 1rem; }
  .content code { font-size: 0.82em; }
  .content pre::before { right: 0.6rem; top: 0.4rem; }

  /* Tables: smaller font in scroll wrapper */
  .content table { font-size: 0.74rem; }
  .content table th { font-size: 0.62rem; }
  .content table th, .content table td { padding: 0.4rem 0.55rem; }

  /* Footer */
  .article-footer { flex-direction: column; gap: 1rem; align-items: flex-start; }

  /* Reading progress bar slightly thicker for visibility */
  .reading-progress { height: 3px; }
}

/* Very small phones (iPhone SE, older Android) */
@media (max-width: 380px) {
  body { padding: 3.8rem 0.85rem 3.5rem; }

  .topbar-inner { padding: 0.7rem 0.85rem; }
  .topnav, .lang-toggle { font-size: 0.58rem; letter-spacing: 0.14em; }

  .page-header { margin-bottom: 1.5rem; }
  .page-header h1 { font-size: 1.55rem; }
  .page-header .subtitle { font-size: 0.78rem; line-height: 1.55; }

  .post-card { padding: 0.95rem 0.95rem; }
  .post-card.has-cover .post-body { padding: 0.85rem 0.95rem 1rem; }
  .post-title { font-size: 1rem; }
  .post-excerpt { font-size: 0.78rem; }

  .article-meta { font-size: 0.62rem; gap: 0.4rem; }
  .article-tags { gap: 0.3rem; }

  .content { font-size: 0.86rem; }
  .content h2 { font-size: 1.12rem; }
  .content h3 { font-size: 1rem; }
  .content pre  { font-size: 0.74rem; padding: 0.8rem 0.9rem; }
  .content table { font-size: 0.7rem; }
}

/* Landscape phones — keep canvas/scanlines from feeling cramped */
@media (max-width: 900px) and (orientation: landscape) and (max-height: 500px) {
  body { padding-top: 3rem; }
  .article-cover { aspect-ratio: 21 / 9; max-height: 50vh; }
}

/* Honor user preference: disable cosmetic animations */
@media (prefers-reduced-motion: reduce) {
  .divider::after,
  .post-cover img,
  .reading-progress-bar { transition: none !important; animation: none !important; }
  .fade-in { animation: none !important; }
}