/* Rebound Retro Lab — neon-retro theme.
   Design intent: general retro-computing (not C64-specific), dark surface, cyan +
   magenta neon used ONLY as accents/glow on interactive & branding elements.
   Body copy stays calm and high-contrast — reading comfort wins. Neon amount is a
   single knob: --glow-strength (0 = flat, ~1.3 = bold). */

/* --- self-hosted fonts (no CDN at runtime; honours the cookieless stance) --- */
@font-face {
  font-family: "IBM Plex Sans"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("../fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans"; font-style: normal; font-weight: 600; font-display: swap;
  src: url("../fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("../fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono"; font-style: normal; font-weight: 700; font-display: swap;
  src: url("../fonts/ibm-plex-mono-latin-700-normal.woff2") format("woff2");
}
/* Brand/display faces — used only in the logo lockup. */
@font-face {
  font-family: "Orbitron"; font-style: normal; font-weight: 700; font-display: swap;
  src: url("../fonts/orbitron-latin-700-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Orbitron"; font-style: normal; font-weight: 900; font-display: swap;
  src: url("../fonts/orbitron-latin-900-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Monoton"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("../fonts/monoton-latin-400-normal.woff2") format("woff2");
}

:root {
  --bg: #0c0b12;          /* near-black indigo */
  --surface: #16141f;     /* panels: header, cards, info box */
  --surface-2: #100e18;   /* insets: code, covers */
  --fg: #e7e4f0;          /* body text — calm, no glow */
  --muted: #8a85a0;
  --border: #262238;

  --neon: #2ee6d6;        /* primary accent: cyan */
  --neon-2: #ff5cc8;      /* secondary: magenta */
  --neon-3: #c9a2ff;      /* occasional: violet */

  --glow-strength: 0.7;   /* THE neon knob */

  --sans: "IBM Plex Sans", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
}

/* Glow helpers — scale with the knob so we can dial neon up/down globally. */
.glow-cyan { text-shadow: 0 0 calc(12px * var(--glow-strength)) rgba(46, 230, 214, 0.55); }
.glow-mag  { text-shadow: 0 0 calc(12px * var(--glow-strength)) rgba(255, 92, 200, 0.55); }

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.65;
}

/* Fixed synthwave-grid backdrop: sits behind everything (z-index -1), stays put
   on scroll. The centered content column is solid (see .content), so the grid
   only shows in the left/right margins — never under the text. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: url("../img/grid-bg.svg") center center / cover no-repeat;
}

h1, h2, h3, .brand, .section-h, .widget-h, .badge, .meta, nav, .lang-toggle {
  font-family: var(--mono);
}

a { color: var(--neon); text-decoration: none; }
a:hover { color: var(--neon-2); }

/* Neon focus ring — accessible AND on-theme. */
:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
  border-radius: 2px;
}

/* --- header --- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 0.9rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(46, 230, 214, calc(0.25 * var(--glow-strength))),
              0 6px 20px rgba(0, 0, 0, 0.45);
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; text-decoration: none; white-space: nowrap; }
.brand-mark { width: 34px; height: 34px; flex: none; filter: drop-shadow(0 0 calc(9px * var(--glow-strength)) rgba(46, 230, 214, 0.6)); }
.brand-wm { display: inline-flex; align-items: baseline; gap: 0.34rem; line-height: 1; }
.wm-side { font-family: "Orbitron", var(--mono); font-weight: 700; font-size: 0.98rem; letter-spacing: 0.02em; color: var(--fg); }
.wm-retro { font-family: "Monoton", var(--mono); font-size: 0.92rem; color: var(--neon-2);
  text-shadow: 0 0 calc(12px * var(--glow-strength)) rgba(255, 92, 200, 0.6); position: relative; top: 0.02em; }
@media (max-width: 560px) { .brand-wm { display: none; } }  /* mark-only on small screens */
nav a { color: var(--muted); }
nav a:hover { color: var(--fg); text-shadow: 0 0 calc(10px * var(--glow-strength)) rgba(255, 92, 200, 0.6); }
nav > * + * { margin-left: 0.9rem; }

/* --- header search --- */
.search-form { margin-left: auto; }
.search-form input[type="search"] {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--fg);
  font: inherit; font-family: var(--mono); font-size: 0.85rem;
  padding: 0.4rem 0.7rem;
  width: 11rem;
  transition: border-color .15s, box-shadow .15s, width .15s;
}
.search-form input[type="search"]:focus {
  outline: none;
  border-color: var(--neon);
  box-shadow: 0 0 calc(10px * var(--glow-strength)) rgba(46, 230, 214, 0.5);
  width: 14rem;
}
.search-form input[type="search"]::placeholder { color: var(--muted); }
.search-count { color: var(--muted); font-size: 0.85rem; }

/* --- language toggle --- */
.lang-toggle { font-size: 0.8rem; letter-spacing: 0.05em; }
.lang-toggle a { color: var(--muted); }
.lang-toggle a:hover { color: var(--neon); }
.lang-current { color: var(--neon); font-weight: 700; }
.lang-toggle > * + * { margin-left: 0.4rem; }

.fallback-note {
  border-left: 3px solid var(--neon);
  background: var(--surface);
  color: var(--muted);
  padding: 0.5rem 0.8rem;
  font-size: 0.85rem;
}

.content {
  max-width: 62rem; margin: 0 auto; padding: 2rem 1.5rem;
  /* Solid base so the grid backdrop never sits behind the text; the matching
     box-shadow feathers the edge into the gutters instead of a hard seam. */
  background: var(--bg);
  box-shadow: 0 0 5rem 2.5rem var(--bg);
}

h1 { color: var(--fg); font-size: 1.9rem; }
h1.neon, .page-title { color: var(--neon); text-shadow: 0 0 calc(16px * var(--glow-strength)) rgba(46, 230, 214, 0.5); }
.empty { color: var(--muted); font-style: italic; }

.site-footer {
  padding: 1.2rem 1.5rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  display: flex; justify-content: center; align-items: center; gap: 1.2rem; flex-wrap: wrap;
}

/* ======================= HOME LAYOUT ======================= */
.home { display: grid; grid-template-columns: 1fr; gap: 2.5rem; }
@media (min-width: 900px) {
  .home { grid-template-columns: minmax(0, 1fr) 17rem; align-items: start; }
}

.section-h {
  font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--neon); margin: 0 0 1rem;
  text-shadow: 0 0 calc(10px * var(--glow-strength)) rgba(46, 230, 214, 0.4);
}
.section-h::before { content: "▚ "; color: var(--neon-2); }

/* Cover placeholder = neon gradient + faint scanlines. Real title images drop
   into the same .cover slot later (mandatory for lead/featured). */
.cover {
  position: relative; aspect-ratio: 16 / 9; border-radius: 8px; overflow: hidden;
  background: linear-gradient(135deg, var(--neon), var(--neon-2));
  background-size: cover; background-position: center;  /* for real title_image */
}
.cover::after {
  content: ""; position: absolute; inset: 0;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,.18) 0 2px, transparent 2px 4px);
  mix-blend-mode: overlay;
}
.cover-2 { background: linear-gradient(135deg, var(--neon-2), var(--neon-3)); }
.cover-3 { background: linear-gradient(135deg, var(--neon-3), var(--neon)); }
.cover-4 { background: linear-gradient(135deg, var(--neon), #1f6feb); }
.cover-play {
  position: absolute; inset: 0; margin: auto; z-index: 2;
  width: 3.4rem; height: 3.4rem; border-radius: 50%; padding-left: 0.2rem;
  display: grid; place-items: center; color: #0c0b12; font-size: 1.2rem;
  background: var(--neon); box-shadow: 0 0 calc(18px * var(--glow-strength)) rgba(46, 230, 214, 0.6);
}

/* Lead article — the big one. */
.lead { display: block; color: inherit; }
.lead-cover { aspect-ratio: 21 / 9; margin-bottom: 1rem; box-shadow: 0 0 calc(28px * var(--glow-strength)) rgba(46, 230, 214, 0.25); }
.lead-title { font-size: 1.9rem; margin: 0.4rem 0; color: var(--fg); }
.lead:hover .lead-title { color: var(--neon); text-shadow: 0 0 calc(14px * var(--glow-strength)) rgba(46, 230, 214, 0.5); }
.lead-excerpt { color: var(--fg); margin: 0.5rem 0 0; max-width: 42rem; }

/* Featured grid — 2 up. */
.featured { margin-top: 2.5rem; }
.featured-grid { display: grid; grid-template-columns: 1fr; gap: 1.4rem; }
@media (min-width: 560px) { .featured-grid { grid-template-columns: 1fr 1fr; } }

.card {
  display: block; color: inherit; background: var(--surface);
  border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.card:hover {
  border-color: var(--neon);
  box-shadow: 0 0 calc(20px * var(--glow-strength)) rgba(46, 230, 214, 0.28);
  transform: translateY(-2px);
}
.card .cover { border-radius: 0; }
.card-body { padding: 0.9rem 1rem 1.1rem; }
.card-title { font-size: 1.1rem; margin: 0.3rem 0 0.4rem; color: var(--fg); }
.card:hover .card-title { color: var(--neon); }
.card-excerpt { color: var(--muted); font-size: 0.9rem; margin: 0; }

/* Browse by machine. */
.browse { margin-top: 2.5rem; }
.browse-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr)); gap: 0.9rem; }
.machine-tile {
  display: flex; flex-direction: column; gap: 0.2rem;
  padding: 0.9rem 1rem; background: var(--surface);
  border: 1px solid var(--border); border-radius: 8px;
  font-family: var(--mono); color: var(--fg);
  transition: border-color .15s, box-shadow .15s, color .15s;
}
.machine-tile:hover { border-color: var(--neon-2); color: var(--neon-2); box-shadow: 0 0 calc(16px * var(--glow-strength)) rgba(255, 92, 200, 0.25); }
.machine-tile span { color: var(--muted); font-size: 0.8rem; }

/* Right column widgets. */
.home-side { display: grid; gap: 1.5rem; }
.widget { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 1rem 1.1rem; }
.widget-h {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--neon-2); margin: 0 0 0.8rem;
  text-shadow: 0 0 calc(10px * var(--glow-strength)) rgba(255, 92, 200, 0.4);
}
.latest-list { list-style: none; margin: 0; padding: 0; }
.latest-list li { padding: 0.55rem 0; border-bottom: 1px solid var(--border); }
.latest-list li:last-child { border-bottom: 0; }
.latest-list a { color: var(--fg); font-size: 0.92rem; }
.latest-list a:hover { color: var(--neon); }
.latest-play { color: var(--neon); font-size: 0.66rem; vertical-align: 1px; }
.latest-meta { color: var(--muted); font-size: 0.72rem; font-family: var(--mono); margin-top: 0.15rem; }
.more { display: inline-block; margin-top: 0.6rem; font-family: var(--mono); font-size: 0.8rem; }
.widget-stub p { color: var(--muted); font-size: 0.85rem; margin: 0; }

/* --- article list (search / subject pages) --- */
.article-list { list-style: none; padding: 0; }
.article-card { padding: 1rem 0; border-bottom: 1px solid var(--border); }
.article-title { font-size: 1.3rem; color: var(--neon); }
.article-title:hover { text-shadow: 0 0 calc(12px * var(--glow-strength)) rgba(46, 230, 214, 0.5); }
.excerpt { color: var(--fg); margin: 0.4rem 0 0; }

/* --- meta row (type / category / date) --- */
.meta { display: flex; gap: 0.6rem; align-items: center; margin: 0.3rem 0; font-size: 0.75rem; color: var(--muted); }
.badge { text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.68rem; padding: 0.12rem 0.5rem; border-radius: 3px; background: var(--surface-2); border: 1px solid var(--border); color: var(--neon); }
.badge-review { color: var(--neon-2); }
.badge-lead, .badge-featured { border-color: var(--neon-2); color: var(--neon-2); box-shadow: 0 0 calc(8px * var(--glow-strength)) rgba(255, 92, 200, 0.35); }
.badge-score { color: var(--neon); border-color: var(--neon); box-shadow: 0 0 calc(8px * var(--glow-strength)) rgba(46, 230, 214, 0.3); }
.cat::before { content: "· "; color: var(--muted); }
time { font-variant-numeric: tabular-nums; }

/* --- tags --- */
.tags { margin: 0.5rem 0 1rem; }
.tag { color: var(--muted); font-size: 0.8rem; margin-right: 0.5rem; }
.meta a.cat, .meta a.tag, .tag-row a.tag { color: var(--muted); text-decoration: none; }
.meta a.cat:hover, .meta a.tag:hover, .tag-row a.tag:hover { color: var(--neon); }
.tag-row { display: flex; flex-wrap: wrap; gap: 0.4rem 0.6rem; margin: 0.4rem 0; }
.tag-row a.tag { margin-right: 0; }

/* --- article body --- */
.post-body { margin-top: 0; }
.post-body h2, .post-body h3 { color: var(--neon); font-family: var(--mono); }
.post-body a { color: var(--neon); text-decoration: underline; text-underline-offset: 2px; }
.post-body a:hover { color: var(--neon-2); }
.post-body img { max-width: 100%; height: auto; border-radius: 6px; }
.post-body pre { padding: 1rem; border-radius: 6px; overflow-x: auto; background: var(--surface-2); border: 1px solid var(--border); }
.post-body code { font-family: var(--mono); }
.post-body :not(pre) > code { background: var(--surface-2); padding: 0.1rem 0.3rem; border-radius: 3px; }
.post-body blockquote { border-left: 3px solid var(--neon-2); margin: 1rem 0; padding-left: 1rem; color: var(--muted); }
.post-body table { border-collapse: collapse; }
.post-body th, .post-body td { border: 1px solid var(--border); padding: 0.4rem 0.7rem; }
.post-body figure { margin: 1.5rem 0; }
.post-body figcaption { color: var(--muted); font-size: 0.85rem; margin-top: 0.4rem; text-align: center; }
.post-body .video { aspect-ratio: 16 / 9; margin: 1.5rem 0; }
.post-body .video iframe { width: 100%; height: 100%; border: 0; border-radius: 6px; }

/* --- info box --- */
.infobox {
  padding: 1rem; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; font-size: 0.85rem;
}
.infobox-cover { width: 100%; border-radius: 4px; margin-bottom: 0.6rem; }
.infobox-kind { text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.65rem; color: var(--muted); font-family: var(--mono); }
.infobox-title { margin: 0.2rem 0 0.7rem; color: var(--neon); font-size: 1.1rem; font-family: var(--mono); }
.infobox-fields { display: grid; grid-template-columns: auto 1fr; gap: 0.2rem 0.7rem; margin: 0; }
.infobox-fields dt { color: var(--muted); }
.infobox-fields dd { margin: 0; }
.infobox-summary { margin: 0.8rem 0 0.6rem; color: var(--fg); }
.infobox-link { color: var(--neon); font-size: 0.8rem; font-family: var(--mono); }
.infobox-link:hover { color: var(--neon-2); }
.infobox-hardware { border-top: 3px solid var(--neon); }
.infobox-software { border-top: 3px solid var(--neon-3); }
.infobox-game { border-top: 3px solid var(--neon-2); }

/* --- flash messages --- */
.flash { padding: 0.6rem 1rem; border-radius: 4px; margin-bottom: 1rem; font-size: 0.9rem; }
.flash-success { background: #10241c; border: 1px solid #2f7d6a; color: #9fe9d3; }
.flash-error { background: #2a1226; border: 1px solid #8a3078; color: #f2b8e2; }

/* --- comments --- */
.comments { margin-top: 3rem; border-top: 1px solid var(--border); padding-top: 1rem; }
.comments h2 { color: var(--neon); font-family: var(--mono); }
.comment-list { list-style: none; padding: 0; }
.comment { padding: 0.8rem 0; border-bottom: 1px solid var(--border); }
.comment-meta { font-size: 0.8rem; color: var(--muted); display: flex; gap: 0.8rem; align-items: baseline; font-family: var(--mono); }
.comment-meta strong { color: var(--fg); }
.comment-body { margin: 0.3rem 0 0; white-space: pre-line; }

/* --- comment form --- */
.comment-form { display: grid; gap: 0.6rem; margin-top: 1.2rem; max-width: 32rem; }
.comment-form input, .comment-form textarea {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 5px;
  color: var(--fg); font: inherit; font-size: 0.9rem; padding: 0.5rem 0.7rem;
}
.comment-form input:focus, .comment-form textarea:focus {
  outline: none; border-color: var(--neon);
  box-shadow: 0 0 calc(10px * var(--glow-strength)) rgba(46, 230, 214, 0.45);
}
.comment-form button {
  justify-self: start; background: var(--neon); color: #05201d; border: 0; border-radius: 5px;
  font: inherit; font-family: var(--mono); font-weight: 700; padding: 0.5rem 1.1rem; cursor: pointer;
  box-shadow: 0 0 calc(16px * var(--glow-strength)) rgba(46, 230, 214, 0.4);
}
.comment-form button:hover { background: var(--neon-2); color: #2a0620; box-shadow: 0 0 calc(18px * var(--glow-strength)) rgba(255, 92, 200, 0.45); }
.moderation-hint { color: var(--muted); font-size: 0.8rem; margin: 0; }
.hp { position: absolute; left: -9999px; top: -9999px; }

/* --- gear catalog --- */
.gear-wrap { overflow-x: auto; }
.gear-table { border-collapse: collapse; width: 100%; font-size: 0.9rem; }
.gear-table th, .gear-table td { border-bottom: 1px solid var(--border); padding: 0.6rem 0.8rem; text-align: left; vertical-align: top; }
.gear-table th { color: var(--muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; font-family: var(--mono); }
.gear-table a { color: var(--neon); }
.gear-table a:hover { color: var(--neon-2); }
.gear-sub { color: var(--muted); font-size: 0.8rem; }
.gear-price { font-variant-numeric: tabular-nums; white-space: nowrap; }
.gear-notes { color: var(--muted); }

/* Respect users who don't want motion. */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* --- latest-comments widget --- */
.cmt-list { list-style: none; margin: 0; padding: 0; }
.cmt-list li { padding: 0.55rem 0; border-bottom: 1px solid var(--border); }
.cmt-list li:last-child { border-bottom: 0; }
.cmt-snip { margin: 0 0 0.2rem; font-size: 0.85rem; color: var(--fg); }
.cmt-list .latest-meta a { color: var(--neon); }
.cmt-list .latest-meta a:hover { color: var(--neon-2); }

/* --- boot intro (mini-CRT → logo) --- */
.boot { padding: 0; overflow: hidden; }
.boot-crt {
  position: relative; min-height: 9.5rem; display: grid;
  background: radial-gradient(circle at 50% 40%, #12101d, var(--surface-2) 75%);
}
.boot-crt::after {  /* scanlines over the screen only */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,.16) 0 2px, transparent 2px 4px);
}
.boot-screen {
  margin: 0; padding: 0.7rem 0.8rem; font-family: var(--mono); font-size: 0.62rem;
  line-height: 1.55; color: var(--neon); white-space: pre-wrap; align-self: start;
  text-shadow: 0 0 calc(6px * var(--glow-strength)) rgba(46,230,214,.5);
}
.boot-screen::after { content: "\2588"; animation: boot-blink 1s steps(1) infinite; } /* cursor */
@keyframes boot-blink { 50% { opacity: 0; } }
.boot-logo {
  grid-area: 1 / 1; align-self: center; justify-self: center;
  display: flex; flex-direction: column; align-items: center; gap: 0.35rem; padding: 0.8rem;
}
.boot-logo[hidden] { display: none; }  /* [hidden] must beat the flex rule above */
.boot-logo.igniting { animation: boot-ignite 0.9s steps(1, end) 1; }
@keyframes boot-ignite {
  0%,9% { opacity: 0; } 10% { opacity: 1; } 13% { opacity: .25; } 18% { opacity: 1; }
  24% { opacity: .5; } 30% { opacity: 1; } 46% { opacity: .7; } 52% { opacity: 1; }
}
.b-mark { width: 54px; height: 54px; filter: drop-shadow(0 0 calc(10px * var(--glow-strength)) rgba(46,230,214,.6)); }
.b-wm { display: flex; flex-direction: column; align-items: center; line-height: 1.05; }
.b-side { font-family: "Orbitron", var(--mono); font-weight: 900; font-size: 0.72rem; letter-spacing: 0.04em; color: var(--fg); }
.b-retro { font-family: "Monoton", var(--mono); font-size: 1.15rem; color: var(--neon-2);
  text-shadow: 0 0 calc(12px * var(--glow-strength)) rgba(255,92,200,.6); }
.boot-controls {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.4rem 0.7rem; border-top: 1px solid var(--border);
  font-family: var(--mono); font-size: 0.68rem; color: var(--muted);
}
.boot-toggle { display: inline-flex; align-items: center; gap: 0.35rem; cursor: pointer; }
.boot-toggle input { accent-color: var(--neon); }
.boot-action { background: none; border: 0; color: var(--neon); font: inherit; cursor: pointer; padding: 0; }
.boot-action:hover { color: var(--neon-2); }

/* Article title-image banner (shown when the post has a title_image). */
.post-cover {
  aspect-ratio: 3 / 1; border-radius: 8px; margin-bottom: 1.3rem;
  background-size: cover; background-position: center; background-color: var(--surface-2);
  box-shadow: 0 0 calc(22px * var(--glow-strength)) rgba(46, 230, 214, 0.18);
}

/* --- author byline + date row (top of article) --- */
.byline-row { display: flex; align-items: center; gap: 0.5rem; margin: 0.4rem 0; color: var(--muted); font-family: var(--mono); font-size: 0.82rem; }
.byline-row time { color: var(--muted); }
.byline { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--muted); font-family: var(--mono); font-size: 0.82rem; text-decoration: none; }
.byline:hover { color: var(--neon); }
.byline-avatar { width: 26px; height: 26px; border-radius: 50%; object-fit: cover; border: 1px solid var(--border); }

/* --- about the author (end of article) --- */
.about-author {
  display: flex; gap: 1rem; align-items: flex-start;
  margin-top: 2.5rem; padding: 1.2rem;
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--neon-2); border-radius: 10px;
}
.about-avatar { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; flex: none; border: 1px solid var(--border); }
.about-h { font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); }
.about-name { display: inline-block; font-family: var(--mono); font-weight: 700; color: var(--neon); text-decoration: none; margin: 0.15rem 0 0.4rem; }
.about-name:hover { color: var(--neon-2); }
.about-bio p { margin: 0.3rem 0 0; font-size: 0.9rem; }

/* --- author page --- */
.author-head { display: flex; gap: 1.2rem; align-items: center; margin-bottom: 1.5rem; }
.author-avatar { width: 80px; height: 80px; border-radius: 50%; object-fit: cover; flex: none; border: 1px solid var(--border); box-shadow: 0 0 calc(16px * var(--glow-strength)) rgba(46,230,214,.25); }
.author-bio p { margin: 0.3rem 0 0; color: var(--muted); }

/* --- "you may also be interested in" (related, same type) --- */
.related { margin-top: 2.5rem; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1rem; }
.related-card {
  display: flex; align-items: stretch; gap: 0; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  text-decoration: none; transition: border-color .15s, box-shadow .15s;
}
.related-card:hover { border-color: var(--neon); box-shadow: 0 0 calc(14px * var(--glow-strength)) rgba(46,230,214,.22); }
.related-thumb {
  width: 84px; flex: none; align-self: stretch;
  background: linear-gradient(135deg, var(--neon), var(--neon-2));
  background-size: cover; background-position: center;
}
.related-body { padding: 0.6rem 0.7rem; min-width: 0; }  /* min-width:0 lets text truncate */
.related-title { color: var(--fg); font-size: 0.9rem; font-weight: 600; line-height: 1.25; }
.related-card:hover .related-title { color: var(--neon); }
.related-excerpt {
  color: var(--muted); font-size: 0.78rem; margin: 0.25rem 0 0; line-height: 1.4;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* --- projects landing (series cards) --- */
.series-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); gap: 1.4rem; }
.series-card {
  display: block; color: inherit; text-decoration: none; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.series-card:hover { border-color: var(--neon); box-shadow: 0 0 calc(20px * var(--glow-strength)) rgba(46,230,214,.28); transform: translateY(-2px); }
.series-cover { border-radius: 0; }
.series-card-body { padding: 0.9rem 1rem 1.1rem; }
.series-card-title { font-size: 1.15rem; margin: 0.35rem 0 0.4rem; color: var(--fg); }
.series-card:hover .series-card-title { color: var(--neon); }

/* --- series index (table of contents) --- */
.series-toc { list-style: none; padding: 0; counter-reset: none; }
.series-toc-item { display: flex; gap: 0.9rem; padding: 0.9rem 0; border-bottom: 1px solid var(--border); }
.series-toc-num {
  flex: none; width: 2rem; height: 2rem; border-radius: 50%;
  display: grid; place-items: center; font-family: var(--mono); font-size: 0.85rem;
  color: var(--neon); border: 1px solid var(--border); background: var(--surface-2);
}
.series-toc-title { font-size: 1.1rem; color: var(--neon); text-decoration: none; }
.series-toc-title:hover { text-shadow: 0 0 calc(12px * var(--glow-strength)) rgba(46,230,214,.5); }
.series-toc-body .excerpt { margin: 0.3rem 0 0; }

/* --- series framing on an article --- */
.series-banner {
  display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap;
  margin: 0.6rem 0; padding: 0.5rem 0.8rem; text-decoration: none;
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--neon-2); border-radius: 8px;
  font-family: var(--mono); font-size: 0.82rem; color: var(--fg);
}
.series-banner:hover { border-color: var(--neon); }
.series-banner-kind { text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.65rem; color: var(--neon-2); }
.series-banner-pos { color: var(--muted); }
.series-nav {
  display: grid; grid-template-columns: minmax(0,1fr) auto minmax(0,1fr); gap: 1rem; align-items: center;
  margin: 1.5rem 0; padding: 1rem 0; border-top: 1px solid var(--border);
  font-family: var(--mono); font-size: 0.85rem;
}
.series-nav a { color: var(--neon); text-decoration: none; }
.series-nav a:hover { color: var(--neon-2); }
.series-nav-prev, .series-nav-next { display: flex; align-items: center; gap: 0.4rem; min-width: 0; }
.series-nav-next { justify-content: flex-end; }
.series-nav .nav-arrow { flex: none; }
.series-nav .nav-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.series-nav-index { color: var(--muted); text-align: center; white-space: nowrap; }

/* --- reading mode: sticky "on this page" heading tree + article --- */
/* --- locked reading column / full-bleed grid --- */
.content-article { max-width: 80rem; }

.post {
  display: grid;
  grid-template-columns: 
    [left-start] minmax(0, 1fr) 
    [center-start] minmax(auto, 42rem) 
    [center-end] minmax(0, 1fr) 
    [right-end];
  gap: 1.5rem 2.5rem;
  align-items: start;
}

.post > * {
  grid-column: center-start / center-end;
  min-width: 0;
}

.post > .video-hero,
.post > .post-cover {
  grid-column: left-start / right-end;
}

.post-content-grid {
  grid-column: left-start / right-end;
  display: grid;
  grid-template-columns: 
    [left-start] minmax(0, 1fr) 
    [center-start] minmax(auto, 42rem) 
    [center-end] minmax(0, 1fr) 
    [right-end];
  gap: 1.5rem 2.5rem;
  align-items: start;
}

.post-content-grid > * {
  grid-column: center-start / center-end;
  grid-row: 1;
  min-width: 0;
}

.post-content-grid > .series-side {
  grid-column: left-start / center-start;
  margin: 0;
}

.post-content-grid > .infobox {
  grid-column: center-end / right-end;
  width: 100%;
  max-width: 18rem;
  margin: 0;
}

.series-side {
  position: sticky; top: 4.75rem; align-self: start;
  font-family: var(--mono); font-size: 0.8rem;
  max-height: calc(100vh - 6rem); overflow-y: auto;
}
.toc-heading {
  text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.65rem;
  color: var(--muted); margin-bottom: 0.6rem; padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.toc-nav ul { list-style: none; margin: 0; padding: 0; }
.toc-nav ul ul { padding-left: 0.8rem; }   /* nested levels indent */
.toc-link {
  display: block; padding: 0.28rem 0.6rem; border-left: 2px solid transparent;
  color: var(--muted); text-decoration: none; line-height: 1.35;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.toc-link:hover { color: var(--fg); }
.toc-link.active { color: var(--neon); border-left-color: var(--neon); background: var(--surface); }

/* Anchor jumps clear the sticky header instead of hiding under it. */
.post-body h1, .post-body h2, .post-body h3, .post-body h4 { scroll-margin-top: 4.75rem; }

@media (max-width: 1000px) {
  .post, .post-content-grid { grid-template-columns: 1fr; gap: 1.25rem; }
  .post > *, .post-content-grid > *,
  .post > .video-hero, .post > .post-cover,
  .post-content-grid > .series-side, .post-content-grid > .infobox { 
    grid-column: 1 / -1; grid-row: auto; 
  }
  .post-content-grid > .series-side {
    position: static; max-height: none; overflow: visible;
    border: 1px solid var(--border); border-radius: 8px;
    padding: 0.75rem 1rem; background: var(--surface);
  }
  .post-content-grid > .infobox {
    max-width: none;
  }
}

/* --- Mobile Header --- */
@media (max-width: 900px) {
  .site-header { flex-wrap: wrap; gap: 1rem; padding: 1rem; }
  .site-header > nav:not(.lang-toggle) {
    order: 3; width: 100%; display: flex; flex-wrap: wrap; gap: 0.8rem; justify-content: center;
  }
  .search-form { order: 4; width: 100%; margin-left: 0; margin-top: 0.5rem; }
  .search-form input[type="search"] { width: 100%; }
  .search-form input[type="search"]:focus { width: 100%; }
  .social-nav { margin-left: auto; order: 2; }
  .lang-toggle { order: 2; }
}

/* --- review verdict box (type: review) --- */
.review-box {
  margin: 1.5rem 0; padding: 1rem 1.25rem;
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--neon); border-radius: 10px;
  box-shadow: 0 0 calc(18px * var(--glow-strength)) rgba(46,230,214,.14);
}
.review-h {
  text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.65rem;
  color: var(--muted); font-family: var(--mono); margin-bottom: 0.7rem;
}
.review-body { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.review-score { display: flex; align-items: center; gap: 0.6rem; flex: none; }
.stars { display: inline-flex; gap: 0.15rem; }
.star { width: 1.5rem; height: 1.5rem; display: block; }
.review-num { font-family: var(--mono); font-size: 1.05rem; color: var(--neon); }
.review-verdict { margin: 0; flex: 1; min-width: 14rem; color: var(--fg); font-style: italic; }

/* --- browse widgets: category list + tag cloud --- */
.taxo-list { list-style: none; margin: 0; padding: 0; }

/* --- Telemetry Dashboard --- */
.telemetry-dashboard {
  background: #040409;
  border: 1px solid var(--border);
  border-left: 3px solid var(--neon);
  border-radius: 8px;
  padding: 2.5rem;
  position: relative;
  margin: 2rem 0;
  overflow: hidden;
  font-family: var(--mono);
  box-shadow: inset 0 0 40px rgba(46, 230, 214, 0.05), 0 0 20px rgba(46, 230, 214, 0.1);
}
.tele-scanline {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, rgba(255,255,255,0), rgba(255,255,255,0) 50%, rgba(0,0,0,0.15) 50%, rgba(0,0,0,0.15));
  background-size: 100% 4px;
  z-index: 10;
}
.tele-group { margin-bottom: 2.5rem; position: relative; z-index: 20; }
.tele-group:last-of-type { margin-bottom: 2rem; }
.tele-group-h {
  color: var(--neon-2);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-bottom: 1px dashed var(--border);
  padding-bottom: 0.6rem;
  margin: 0 0 1.5rem;
}
.tele-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
}
.tele-metric {
  display: flex; flex-direction: column; gap: 0.4rem;
}
.tele-label {
  color: var(--muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em;
}
.tele-val {
  color: var(--neon); font-size: 2.5rem; font-weight: 700; line-height: 1.1;
  text-shadow: 0 0 12px rgba(46, 230, 214, 0.4);
}
.tele-val small { font-size: 0.85rem; color: var(--fg); font-weight: 400; text-shadow: none; text-transform: uppercase; letter-spacing: 0.05em; margin-left: 0.2rem; }
.tele-footer {
  border-top: 1px solid var(--border); padding-top: 1.5rem;
  color: var(--muted); font-size: 0.8rem; position: relative; z-index: 20;
}
.tele-blink { animation: blink 1s step-end infinite; color: var(--neon); font-weight: bold; }
@keyframes blink { 50% { opacity: 0; } }
.taxo-list li {
  display: flex; justify-content: space-between; align-items: center; gap: 0.5rem;
  padding: 0.4rem 0; border-bottom: 1px solid var(--border);
}
.taxo-list li:last-child { border-bottom: 0; }
.taxo-list a { color: var(--fg); text-transform: capitalize; }
.taxo-list a:hover { color: var(--neon); }
.taxo-n { color: var(--muted); font-family: var(--mono); font-size: 0.72rem; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag-chip {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.15rem 0.5rem; border-radius: 3px;
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--muted); font-size: 0.75rem; font-family: var(--mono); text-decoration: none;
}
.tag-chip:hover { border-color: var(--neon); color: var(--neon); }
.tag-chip .taxo-n { font-size: 0.68rem; }

/* --- videos section --- */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); gap: 1.4rem; }
.video-card {
  display: block; color: inherit; text-decoration: none; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.video-card:hover { border-color: var(--neon); box-shadow: 0 0 calc(20px * var(--glow-strength)) rgba(46,230,214,.28); transform: translateY(-2px); }
.video-thumb {
  position: relative; aspect-ratio: 16 / 9;
  background: var(--surface-2) center/cover no-repeat;
  display: grid; place-items: center;
}
.video-play {
  width: 3rem; height: 3rem; border-radius: 50%; padding-left: 0.15rem;
  display: grid; place-items: center; font-size: 1.05rem; color: #0c0b12;
  background: var(--neon); box-shadow: 0 0 calc(16px * var(--glow-strength)) rgba(46,230,214,.6);
  opacity: 0.9; transition: transform .15s, opacity .15s;
}
.video-card:hover .video-play { transform: scale(1.1); opacity: 1; }
.video-card-body { padding: 0.8rem 1rem 1rem; }
.video-card-title { font-size: 1.05rem; margin: 0.35rem 0 0; color: var(--fg); }
.video-card:hover .video-card-title { color: var(--neon); }
.video-hero { margin-top: 0; }

/* Video article hero: full width, 16:9 ratio */
.post > .video-hero { margin: 0 0 1.5rem 0; aspect-ratio: 16 / 9; }
.post > .video-hero iframe { width: 100%; height: 100%; border: 0; border-radius: 8px; }

/* --- reading niceties: progress bar, read time, newer/older nav --- */
.read-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0; z-index: 60;
  background: linear-gradient(90deg, var(--neon), var(--neon-2));
  box-shadow: 0 0 8px rgba(46, 230, 214, 0.6); transition: width .1s linear;
}
.read-time { color: var(--muted); }
.post-nav {
  display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 1.5rem;
  margin: 1.5rem 0; padding-top: 1rem; border-top: 1px solid var(--border);
}
.post-nav a { display: flex; flex-direction: column; gap: 0.2rem; text-decoration: none; min-width: 0; }
.post-nav-next { text-align: right; }
.post-nav-kick { font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.post-nav-title { color: var(--neon); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.post-nav a:hover .post-nav-title { color: var(--neon-2); }

/* --- keyboard shortcuts (keycaps + help overlay) --- */
kbd {
  font-family: var(--mono); font-size: 0.78rem; line-height: 1;
  display: inline-block; min-width: 1.1em; text-align: center;
  padding: 0.25em 0.45em; margin: 0 0.1em; color: var(--fg);
  background: var(--surface-2); border: 1px solid var(--border);
  border-bottom-width: 2px; border-radius: 4px;
}
.kbd-hint { display: none; background: none; border: 0; padding: 0; cursor: pointer; color: var(--muted); font: inherit; font-size: 0.8rem; align-items: center; gap: 0.35rem; }
.kbd-hint:hover { color: var(--neon); }
.kbd-hint:hover kbd { border-color: var(--neon); }
@media (hover: hover) and (pointer: fine) { .kbd-hint { display: inline-flex; } }
.kbd-help { position: fixed; inset: 0; z-index: 70; display: grid; place-items: center; background: rgba(6, 6, 12, 0.72); backdrop-filter: blur(2px); }
.kbd-help[hidden] { display: none; }
.kbd-card {
  background: var(--surface); border: 1px solid var(--neon); border-radius: 12px;
  padding: 1.4rem 1.6rem; min-width: 17rem; max-width: 90vw;
  box-shadow: 0 0 calc(30px * var(--glow-strength)) rgba(46, 230, 214, 0.25);
}
.kbd-card h2 { margin: 0 0 1rem; font-size: 0.95rem; color: var(--neon); font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.08em; }
.kbd-list { display: grid; grid-template-columns: auto 1fr; gap: 0.7rem 1.4rem; margin: 0; align-items: center; }
.kbd-list dt { margin: 0; white-space: nowrap; }
.kbd-list dd { margin: 0; color: var(--fg); font-size: 0.9rem; }

/* --- footer feed link --- */
.feed-link { display: inline-flex; align-items: center; gap: 0.35rem; color: var(--muted); text-decoration: none; font-size: 0.8rem; }
.feed-link:hover { color: var(--neon); }
.feed-icon { width: 0.95rem; height: 0.95rem; }

/* --- /feed subscribe page --- */
.feed-explain {
  display: flex; gap: 1rem; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--neon); border-radius: 10px;
  padding: 1.1rem 1.25rem; margin: 0 0 1.75rem;
}
.feed-explain-icon { flex: none; width: 1.6rem; height: 1.6rem; color: var(--neon); margin-top: 0.15rem; }
.feed-explain strong { color: var(--neon); }
.feed-explain p { margin: 0.4rem 0 0; color: var(--muted); }
.feed-url-label { margin-top: 0.9rem !important; }
.feed-url {
  display: inline-block; margin-top: 0.3rem; padding: 0.4rem 0.65rem;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px;
  color: var(--fg); font-family: var(--mono); font-size: 0.85rem;
  user-select: all; word-break: break-all;
}