@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Rajdhani:wght@300;400;500;600;700&family=Exo+2:ital,wght@0,100;0,300;0,400;1,100&display=swap');

/* ═══════════════════════════════════════════════════
   SIGNAL.SPACE — YUMAS HANKOURI
   Stylesheet — centered layout, Cloudflare Pages ready
   ═══════════════════════════════════════════════════ */

:root {
  --green: #00ff88;
  --green-dim: #00cc66;
  --green-dark: #003a1a;
  --amber: #ffb700;
  --cyan: #00ccff;
  --red: #ff3344;
  --bg: #080c0a;
  --bg2: #0d1410;
  --bg3: #111a15;
  --border: rgba(0,255,136,0.13);
  --border-bright: rgba(0,255,136,0.38);
  --border-amber: rgba(255,183,0,0.32);
  --border-cyan: rgba(0,204,255,0.28);
  --border-red: rgba(255,51,68,0.32);
  --text: #c8e8d0;
  --muted: rgba(200,232,208,0.45);
  --font-mono: 'Share Tech Mono', monospace;
  --font-display: 'Rajdhani', sans-serif;
  --font-body: 'Exo 2', sans-serif;
  --max-w: 1120px;
  --pad-x: 2.5rem;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  overflow-x: hidden;
  position: relative;
}

/* CRT scanlines — subtle */
body::before {
  content: '';
  position: fixed; inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.06) 2px, rgba(0,0,0,0.06) 4px
  );
  pointer-events: none; z-index: 9999;
}
/* Vignette — restrained */
body::after {
  content: '';
  position: fixed; inset: 0;
  background: radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.45) 100%);
  pointer-events: none; z-index: 9998;
}

/* ─── CENTERED WRAPPER ─────────────────────────────── */
.wrap {
  width: 100%;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}

/* ─── NAV ──────────────────────────────────────────── */
nav.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  border-bottom: 1px solid var(--border);
  background: rgba(5,8,6,0.97);
  backdrop-filter: blur(16px);
  font-family: var(--font-mono); font-size: 0.72rem;
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  color: var(--green); letter-spacing: 0.15em;
  text-decoration: none; display: flex; align-items: center; gap: 0.5rem;
  flex-shrink: 0;
}
.nav-logo::before { content: '▶'; font-size: 0.6rem; animation: blink 1.2s step-end infinite; }

/* Breadcrumb replaces logo in left nav slot */
.nav-breadcrumb {
  display: flex; align-items: center; gap: 0;
  font-family: var(--font-mono); font-size: 0.72rem;
  flex-shrink: 1; min-width: 0; overflow: hidden;
}
.nav-bc-home {
  color: var(--green); text-decoration: none;
  letter-spacing: 0.08em; flex-shrink: 0;
  transition: opacity 0.2s;
}
.nav-bc-home:hover { opacity: 0.7; }
.nav-bc-sep {
  color: var(--green-dark); margin: 0 0.35rem; font-size: 0.7em; flex-shrink: 0;
}
.nav-bc-seg {
  color: var(--muted); text-decoration: none;
  letter-spacing: 0.05em; white-space: nowrap;
  transition: color 0.2s;
}
.nav-bc-seg:hover { color: var(--text); }
.nav-bc-current {
  color: var(--text); letter-spacing: 0.05em;
  white-space: nowrap; overflow: hidden;
  text-overflow: ellipsis; opacity: 0.65;
}
.nav-links { display: flex; gap: 0; list-style: none; }
.nav-links a {
  color: var(--muted); text-decoration: none;
  letter-spacing: 0.09em; transition: color 0.2s;
  padding: 0 0.85rem; height: 56px; display: flex; align-items: center;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.nav-links a::before { content: '//'; margin-right: 4px; color: var(--green-dark); font-size: 0.7em; }
.nav-links a:hover { color: var(--green); }
.nav-links a.active { color: var(--green); border-bottom-color: var(--green); }
.nav-status { display: flex; align-items: center; gap: 0.5rem; color: var(--muted); font-size: 0.65rem; flex-shrink: 0; }
.status-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 6px var(--green);
  animation: pulse-dot 2s ease-in-out infinite;
}

/* ─── PAGE HERO ─────────────────────────────────────── */
.page-hero {
  padding: 9rem var(--pad-x) 4rem;
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative; overflow: hidden;
}
.page-hero-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,255,136,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,136,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: grid-drift 40s linear infinite;
  pointer-events: none;
}
.breadcrumb {
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--muted); letter-spacing: 0.15em;
  margin-bottom: 1rem; position: relative; z-index: 1;
}
.breadcrumb a { color: var(--green); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.page-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700; color: #fff;
  letter-spacing: -0.02em; line-height: 0.9;
  position: relative; z-index: 1; margin-bottom: 1rem;
}
.page-title em { color: var(--green); font-style: normal; }
.page-sub {
  font-family: var(--font-mono); font-size: 0.82rem;
  color: var(--muted); letter-spacing: 0.05em;
  line-height: 1.9; max-width: 620px;
  position: relative; z-index: 1; margin-top: 1rem;
}

/* ─── SECTIONS ──────────────────────────────────────── */
.section {
  padding: 5rem var(--pad-x);
  max-width: var(--max-w);
  margin: 0 auto;
}
.section-header {
  display: flex; align-items: center; gap: 1rem;
  margin-bottom: 3rem;
}
.section-label {
  font-family: var(--font-mono); font-size: 0.68rem;
  color: var(--green); letter-spacing: 0.22em; white-space: nowrap;
}
.section-label.amber { color: var(--amber); }
.section-label.cyan  { color: var(--cyan); }
.section-label.red   { color: var(--red); }
.section-line {
  flex: 1; height: 1px;
  background: linear-gradient(to right, var(--border-bright), transparent);
}
.section-line.amber { background: linear-gradient(to right, var(--border-amber), transparent); }
.section-line.cyan  { background: linear-gradient(to right, var(--border-cyan), transparent); }
.section-line.red   { background: linear-gradient(to right, var(--border-red), transparent); }
hr.divider { border: none; border-top: 1px solid var(--border); }

/* ─── BUTTONS ───────────────────────────────────────── */
.btn {
  font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 0.15em; padding: 0.7rem 1.6rem;
  text-decoration: none; transition: all 0.2s;
  border: none; cursor: pointer; display: inline-block;
}
.btn-primary { background: var(--green); color: #000; font-weight: 700; }
.btn-primary:hover { background: #fff; box-shadow: 0 0 30px rgba(0,255,136,0.4); }
.btn-ghost { background: transparent; border: 1px solid var(--border-bright); color: var(--green); }
.btn-ghost:hover { background: rgba(0,255,136,0.07); }

/* ─── TAGS ──────────────────────────────────────────── */
.tag {
  font-family: var(--font-mono); font-size: 0.65rem;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--border-bright);
  color: var(--green); letter-spacing: 0.12em;
  background: rgba(0,255,136,0.04);
}
.tag::before { content: '#'; margin-right: 2px; opacity: 0.45; }

/* ─── POST LIST ─────────────────────────────────────── */
.posts-list { display: flex; flex-direction: column; }
.post-item {
  display: grid; grid-template-columns: 130px 1fr auto;
  align-items: center; gap: 2rem;
  padding: 1.4rem 0; border-bottom: 1px solid var(--border);
  text-decoration: none; color: inherit; position: relative;
}
.post-item:first-child { border-top: 1px solid var(--border); }
.post-item::after {
  content: '→'; font-family: var(--font-mono);
  color: var(--green); opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  transform: translateX(-8px); font-size: 0.8rem;
}
.post-item:hover::after { opacity: 1; transform: translateX(0); }
.post-date { font-family: var(--font-mono); font-size: 0.68rem; color: var(--muted); }
.post-cat {
  font-family: var(--font-mono); font-size: 0.58rem;
  padding: 0.15rem 0.5rem; letter-spacing: 0.1em;
  border: 1px solid; display: inline-block; margin-bottom: 0.35rem;
}
.post-cat.sigint   { color: var(--green); border-color: var(--green); }
.post-cat.hardware { color: var(--amber); border-color: var(--amber); }
.post-cat.hpc      { color: var(--cyan);  border-color: var(--cyan); }
.post-cat.cybersec { color: var(--red);   border-color: var(--red); }
.post-title {
  font-family: var(--font-display); font-size: 1rem;
  font-weight: 500; color: #ccc; transition: color 0.2s;
}
.post-item:hover .post-title { color: #fff; }

/* ─── TERMINAL BLOCK ────────────────────────────────── */
.terminal {
  background: var(--bg2); border: 1px solid var(--border);
  font-family: var(--font-mono); font-size: 0.75rem;
}
.term-bar {
  padding: 0.5rem 1rem; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 0.5rem; background: var(--bg3);
}
.term-dot { width: 8px; height: 8px; border-radius: 50%; }
.term-dot.r { background: #ff5f56; }
.term-dot.y { background: #ffbd2e; }
.term-dot.g { background: #27c93f; }
.term-title { color: var(--muted); font-size: 0.6rem; margin: 0 auto; letter-spacing: 0.1em; }
.term-body { padding: 1.25rem 1.5rem; }
.term-line { line-height: 2.1; }
.term-prompt { color: var(--green); }
.term-cmd    { color: #fff; }
.term-out    { color: var(--muted); padding-left: 1rem; }
.term-key    { color: var(--amber); }
.term-val    { color: var(--cyan); }
.term-comment{ color: rgba(200,232,208,0.2); }
.cursor { animation: blink 1s step-end infinite; }

/* ─── CHIP ──────────────────────────────────────────── */
.chip {
  font-family: var(--font-mono); font-size: 0.6rem;
  padding: 0.18rem 0.55rem;
  border: 1px solid rgba(255,255,255,0.1);
  color: rgba(200,232,208,0.35); letter-spacing: 0.08em;
}

/* ─── HIGHLIGHT (rouge syntax) ──────────────────────── */
.highlight { background: var(--bg2) !important; border: 1px solid var(--border); padding: 1.25rem 1.5rem; overflow-x: auto; margin: 1.5rem 0; }
.highlight .k, .highlight .kd, .highlight .kn, .highlight .kp { color: var(--cyan); }
.highlight .s, .highlight .s1, .highlight .s2 { color: var(--amber); }
.highlight .mi, .highlight .mf, .highlight .mh { color: var(--green); }
.highlight .c, .highlight .c1, .highlight .cm  { color: rgba(200,232,208,0.22); }
.highlight .nf { color: #fff; }
.highlight .nc, .highlight .nn { color: var(--green); }
.highlight .o  { color: rgba(200,232,208,0.55); }

/* ─── POST CONTENT ──────────────────────────────────── */
.post-content {
  max-width: 740px;
  margin: 0 auto;
  padding: 8rem var(--pad-x) 5rem;
}
.post-header { margin-bottom: 3rem; }
.post-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700; color: #fff;
  letter-spacing: -0.02em; line-height: 1.05;
  margin-bottom: 1rem;
}
.post-meta-line {
  font-family: var(--font-mono); font-size: 0.68rem;
  color: var(--muted); display: flex; gap: 2rem; flex-wrap: wrap;
  margin-top: 1rem;
}
.post-body { margin-top: 3rem; }
.post-body h2 {
  font-family: var(--font-display); font-size: 1.6rem; font-weight: 600;
  color: #fff; margin: 2.5rem 0 0.75rem; letter-spacing: -0.01em;
}
.post-body h3 {
  font-family: var(--font-display); font-size: 1.2rem; font-weight: 600;
  color: var(--text); margin: 2rem 0 0.5rem;
}
.post-body p { color: var(--muted); line-height: 1.95; margin-bottom: 1.1rem; font-size: 0.95rem; }
.post-body p strong { color: var(--text); font-weight: 400; }
.post-body a { color: var(--green); }
.post-body ul, .post-body ol {
  color: var(--muted); padding-left: 1.5rem;
  margin-bottom: 1.1rem; line-height: 1.9; font-size: 0.95rem;
}
.post-body blockquote {
  border-left: 2px solid var(--green);
  padding: 0.75rem 1.5rem;
  background: rgba(0,255,136,0.04);
  margin: 1.5rem 0;
  font-family: var(--font-mono); font-size: 0.8rem;
  color: var(--green); line-height: 1.8;
}
.post-body pre { margin: 1.5rem 0; }
.post-body code {
  font-family: var(--font-mono); font-size: 0.85em;
  color: var(--green); background: rgba(0,255,136,0.08);
  padding: 0.1em 0.4em;
}
.post-body pre code { background: none; padding: 0; color: var(--text); }
.post-body hr { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }

/* ─── FOOTER ────────────────────────────────────────── */
footer.site-footer {
  border-top: 1px solid var(--border);
  font-family: var(--font-mono); font-size: 0.68rem; color: var(--muted);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2rem var(--pad-x);
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem;
}
.footer-left { display: flex; flex-direction: column; gap: 0.3rem; }
.footer-motto {
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: rgba(200,232,208,0.22);
  font-style: italic;
  text-transform: uppercase;
}
.footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-links a { color: var(--muted); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--green); }

/* ─── BOOKS ─────────────────────────────────────────── */
.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5px;
  background: var(--border);
}
.book-card {
  background: var(--bg2);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  position: relative;
  overflow: hidden;
  transition: background 0.2s;
}
.book-card:hover { background: var(--bg3); }
.book-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--book-accent, var(--green));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.35s cubic-bezier(0.16,1,0.3,1);
}
.book-card:hover::before { transform: scaleX(1); }
.book-genre {
  font-family: var(--font-mono); font-size: 0.58rem;
  color: var(--book-accent, var(--green));
  letter-spacing: 0.2em; text-transform: uppercase;
}
.book-title {
  font-family: var(--font-display); font-size: 1.1rem;
  font-weight: 600; color: #fff; line-height: 1.25;
}
.book-author {
  font-family: var(--font-mono); font-size: 0.68rem;
  color: var(--muted); letter-spacing: 0.05em;
}
.book-note {
  font-size: 0.83rem; color: var(--muted);
  line-height: 1.8; margin-top: 0.35rem; flex: 1;
}
.book-status {
  font-family: var(--font-mono); font-size: 0.58rem;
  letter-spacing: 0.15em; margin-top: 0.5rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.book-status.reading { color: var(--green); }
.book-status.reading::before {
  content: ''; width: 5px; height: 5px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 4px var(--green);
  animation: pulse-dot 2s infinite;
}
.book-status.read { color: var(--muted); }
.book-status.read::before { content: '✓ '; }
.book-link {
  font-family: var(--font-mono); font-size: 0.62rem;
  color: var(--book-accent, var(--green)); text-decoration: none;
  letter-spacing: 0.1em; opacity: 0.65;
  transition: opacity 0.2s; display: inline-block; margin-top: 0.75rem;
}
.book-link:hover { opacity: 1; text-decoration: underline; }

/* Category filter tabs on books page */
/* ─── BOOKS PAGE ─────────────────────────────────────── */
/* Tab bar — scrollable single row */
.tab-bar {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}
.tab-bar::-webkit-scrollbar { display: none; }
.tab-btn {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  padding: 0.6rem 1.1rem;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s;
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text); border-bottom-color: var(--border-bright); }
.tab-btn.active { color: var(--green); border-bottom-color: var(--green); }

/* Books section header — shelf divider */
.book-shelf-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin: 2.5rem 0 1.25rem;
}
.book-shelf-label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: var(--green);
  letter-spacing: 0.22em;
  white-space: nowrap;
  flex-shrink: 0;
}
.book-shelf-count {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: rgba(200,232,208,0.25);
  letter-spacing: 0.1em;
}
.book-shelf-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Book grid */
.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5px;
  background: var(--border);
  margin-bottom: 0.5rem;
}

/* Book card — compact */
.book-card {
  background: var(--bg2);
  padding: 1.25rem 1.4rem;
  border-left: 2px solid var(--book-accent, var(--green));
  position: relative;
  transition: background 0.18s;
  display: flex;
  flex-direction: column;
}
.book-card:hover { background: var(--bg3); }

.book-genre {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  color: var(--book-accent, var(--green));
  opacity: 0.7;
  margin-bottom: 0.3rem;
  text-transform: uppercase;
}
.book-title {
  font-family: var(--font-display);
  font-size: 0.96rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 0.25rem;
}
.book-author {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--muted);
  margin-bottom: 0.7rem;
  opacity: 0.7;
}
.book-note {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.78;
  flex: 1;
}
.book-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.8rem;
  gap: 0.5rem;
}
.book-status {
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.14em;
}
.book-status.reading { color: var(--green); }
.book-status.read    { color: rgba(200,232,208,0.28); }
.book-link {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: var(--green);
  text-decoration: none;
  opacity: 0.5;
  transition: opacity 0.2s;
  white-space: nowrap;
}
.book-link:hover { opacity: 1; }

/* Domain recommended — same grid but slightly tighter */
.book-domain-block { margin-bottom: 3rem; }
.book-domain-label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

/* Category filter tabs on books page */
.tab-bar {
  display: flex; gap: 0; border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem; overflow-x: auto;
}
.tab-btn {
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 0.12em; padding: 0.7rem 1.1rem;
  background: none; border: none; color: var(--muted);
  cursor: pointer; border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s; white-space: nowrap;
}
.tab-btn:hover { color: var(--green); }
.tab-btn.active { color: var(--green); border-bottom-color: var(--green); }

/* ─── ANIMATIONS ────────────────────────────────────── */
@keyframes blink    { 0%,100%{opacity:1} 50%{opacity:0} }
@keyframes pulse-dot {
  0%,100%{ box-shadow: 0 0 4px var(--green); }
  50%    { box-shadow: 0 0 12px var(--green); }
}
@keyframes grid-drift {
  0%   { background-position: 0 0; }
  100% { background-position: 40px 40px; }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── RESPONSIVE ────────────────────────────────────── */
@media (max-width: 1020px) {
  :root { --pad-x: 1.5rem; }
}
@media (max-width: 800px) {
  :root { --pad-x: 1.125rem; }
  .nav-links { gap: 0; }
  .nav-links a { padding: 0 0.55rem; font-size: 0.7rem; }
  .nav-links a::before { display: none; }
  .nav-status { display: none; }
  .post-item { grid-template-columns: 1fr; gap: 0.2rem; }
  .post-item::after { display: none; }
  footer.site-footer .footer-inner {
    flex-direction: column; gap: 1rem; text-align: center;
  }
  .book-grid { grid-template-columns: 1fr; }
  .tab-bar { flex-wrap: wrap; }
}
@media (max-width: 560px) {
  .nav-links li:nth-child(n+4) { display: none; }
  .nav-links::after {
    content: '…';
    font-family: var(--font-mono); font-size: 0.7rem;
    color: var(--muted); display: flex; align-items: center; padding: 0 0.5rem;
  }
}

/* ─── PROFESSIONAL POLISH ──────────────────────────── */
/* Tighter selection colour */
::selection { background: rgba(0,255,136,0.18); color: #fff; }

/* Sharper link underlines in prose */
.post-body a {
  color: var(--green);
  text-decoration: underline;
  text-decoration-color: rgba(0,255,136,0.3);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.2s;
}
.post-body a:hover { text-decoration-color: var(--green); }

/* Classification-band feeling on section labels — amber variant */
.section-label.classified {
  color: var(--amber);
  letter-spacing: 0.3em;
}

/* Tighter monospace throughout */
code, kbd, pre {
  font-family: var(--font-mono);
  font-size: 0.82em;
}

/* Subtle left-border on blockquotes in post body */
.post-body blockquote {
  border-left-width: 2px;
  border-left-style: solid;
  border-left-color: var(--green);
  padding: 0.7rem 1.4rem;
  background: rgba(0,255,136,0.03);
  margin: 1.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--green);
  line-height: 1.8;
}

/* Table styling — clean intelligence-brief feel */
.post-body table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  margin: 1.5rem 0;
}
.post-body table th {
  text-align: left;
  color: rgba(200,232,208,0.35);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border-bright);
}
.post-body table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  line-height: 1.6;
  vertical-align: top;
}
.post-body table tr:hover td { background: var(--bg2); }
.post-body table td:first-child { color: var(--text); }

/* Colophon page specifics */
.colophon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5px;
  background: var(--border);
  margin-bottom: 1.5px;
}
.colophon-card {
  background: var(--bg2);
  padding: 1.5rem 1.75rem;
  transition: background 0.2s;
}
.colophon-card:hover { background: var(--bg3); }
.colophon-card-label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: var(--green);
  letter-spacing: 0.22em;
  margin-bottom: 0.4rem;
}
.colophon-card-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.35rem;
}
.colophon-card-ver {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--amber);
  margin-bottom: 0.6rem;
}
.colophon-card-desc {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.75;
}
.colophon-card-link {
  display: inline-block;
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--green);
  text-decoration: none;
  opacity: 0.6;
  transition: opacity 0.2s;
}
.colophon-card-link:hover { opacity: 1; }

/* ─── REFERENCES ────────────────────────────────────── */
.post-refs {
  padding-top: 2rem;
}
.refs-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.ref-item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.8;
}
.ref-num {
  flex-shrink: 0;
  width: 2.2rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--green);
  padding-top: 0.15rem;
}
.ref-body {
  flex: 1;
  min-width: 0;
}
.ref-authors { color: var(--text); font-weight: 300; }
.ref-year { color: var(--amber); }
.ref-title { font-style: italic; color: var(--text); text-decoration: none; transition: color 0.2s; }
a.ref-title:hover { color: var(--green); text-decoration: underline; }
.ref-in { color: var(--muted); }
.ref-publisher { color: var(--muted); }
.ref-meta { color: var(--muted); }
.ref-doi { font-family: var(--font-mono); font-size: 0.72em; color: var(--green); text-decoration: none; opacity: 0.7; transition: opacity 0.2s; }
.ref-doi:hover { opacity: 1; }
.ref-note { color: var(--muted); font-style: italic; }

/* Inline citation markers in post body */
.cite {
  font-family: var(--font-mono);
  font-size: 0.72em;
  color: var(--green);
  vertical-align: super;
  line-height: 0;
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.2s;
}
.cite:hover { opacity: 1; }

/* ─── LAYMAN SUMMARY BLOCK ──────────────────────────── */
.layman-summary {
  background: linear-gradient(135deg, rgba(255,183,0,0.07) 0%, rgba(255,183,0,0.03) 100%);
  border: 1px solid rgba(255,183,0,0.35);
  border-left: 3px solid var(--amber);
  padding: 1.5rem 1.75rem;
  margin: 2.5rem 0 3rem;
  position: relative;
}
.layman-summary::before {
  content: '// IN PLAIN ENGLISH';
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: var(--amber);
  letter-spacing: 0.25em;
  display: block;
  margin-bottom: 0.85rem;
}
.layman-summary p {
  color: rgba(200,232,208,0.82) !important;
  font-size: 0.97rem !important;
  line-height: 1.85 !important;
  margin: 0 !important;
  font-family: var(--font-body);
  font-weight: 300;
}
.layman-summary strong {
  color: #fff !important;
  font-weight: 400 !important;
}

/* ─── CONTACT FORM ──────────────────────────────────── */
.cf-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem 2rem;
}
.cf-field { display: flex; flex-direction: column; gap: 0.5rem; }
.cf-field--half { grid-column: span 1; }
.cf-field--full { grid-column: span 2; }
.cf-submit-row {
  align-items: center;
  flex-direction: row;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.cf-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--muted);
  letter-spacing: 0.2em;
}
.cf-required { color: var(--amber); }

.cf-input {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  padding: 0.75rem 1rem;
  outline: none;
  width: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
  border-radius: 0;
  -webkit-appearance: none;
}
.cf-input::placeholder { color: rgba(200,232,208,0.2); }
.cf-input:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 1px var(--green), inset 0 0 0 1px rgba(0,255,136,0.05);
}
.cf-input--error {
  border-color: var(--red) !important;
  box-shadow: 0 0 0 1px var(--red) !important;
}
.cf-textarea {
  resize: vertical;
  min-height: 180px;
  line-height: 1.7;
}

.cf-error {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--red);
  letter-spacing: 0.05em;
  margin-top: 0.2rem;
}

.cf-field-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}
.cf-char-count {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: rgba(200,232,208,0.25);
  white-space: nowrap;
  flex-shrink: 0;
}

.cf-submit {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  padding: 0.8rem 2rem;
  background: var(--green);
  color: #000;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s, opacity 0.2s;
  flex-shrink: 0;
}
.cf-submit:hover:not(:disabled) {
  background: #fff;
  box-shadow: 0 0 24px rgba(0,255,136,0.35);
}
.cf-submit:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.cf-note {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: rgba(200,232,208,0.3);
  letter-spacing: 0.05em;
}

/* reCAPTCHA dark-theme iframe tweak */
.g-recaptcha > div { border: 1px solid var(--border) !important; }

/* Global error alert */
.contact-alert {
  padding: 1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  margin-bottom: 1.5rem;
  letter-spacing: 0.04em;
}
.contact-alert--error {
  background: rgba(255,51,68,0.07);
  border: 1px solid rgba(255,51,68,0.35);
  border-left: 3px solid var(--red);
  color: var(--red);
}

/* Success state */
.contact-state {
  padding: 3rem 2rem;
  text-align: center;
}
.contact-state--ok { color: var(--green); }
.contact-state-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}
.contact-state-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.75rem;
}
.contact-state-body {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.8;
  max-width: 420px;
  margin: 0 auto;
}

/* PGP note */
.cf-pgp-note {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(200,232,208,0.35);
  line-height: 1.9;
}
.cf-pgp-label {
  color: var(--green);
  margin-right: 0.5rem;
}

@media (max-width: 640px) {
  .cf-grid { grid-template-columns: 1fr; }
  .cf-field--half,
  .cf-field--full { grid-column: span 1; }
  .cf-submit-row { flex-direction: column; align-items: flex-start; }
}

/* Motto */
.hero-motto {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(200,232,208,0.35);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  margin-top: 0.6rem;
  margin-bottom: 0;
  font-style: italic;
}