/* ============ @sigdevel redesign prototype styles ============ */

:root {
  --bg: #f3efe4;
  --bg-2: #ece7d8;
  --surface: #fdfbf5;
  --surface-2: #faf6ea;
  --ink: #1a1a1a;
  --ink-2: #3a3a3a;
  --muted: #6a6558;
  --muted-2: #8a8578;
  --line: rgba(26, 22, 16, 0.12);
  --line-strong: rgba(26, 22, 16, 0.22);
  --accent: #7a3e1f;
  --accent-2: #9a5b2e;
  --accent-tint: rgba(122, 62, 31, 0.08);
  --ok: #3d6b3a;
  --warn: #a76b1a;
  --crit: #a83b1f;
  --decor-opacity: 0.4;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-1: 0 1px 2px rgba(26, 22, 16, 0.04), 0 8px 24px rgba(26, 22, 16, 0.06);
  --shadow-2: 0 2px 4px rgba(26, 22, 16, 0.05), 0 20px 40px rgba(26, 22, 16, 0.08);

  --font-serif: 'Source Serif 4', 'Iowan Old Style', 'Palatino', Georgia, serif;
  --font-sans: 'Geist', 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', 'Menlo', Consolas, monospace;

  --gap: 24px;
  --page-pad: clamp(20px, 4vw, 56px);
  --content-max: 820px;
  --content-wide: 1100px;
}

/* ---- Palette variants ---- */
html[data-palette="paper"] {
  --bg: #f7f5ef;
  --bg-2: #f0eee5;
  --surface: #ffffff;
  --surface-2: #fbfaf4;
}
html[data-palette="dark"] {
  --bg: #14130f;
  --bg-2: #1c1a14;
  --surface: #1f1d16;
  --surface-2: #26231b;
  --ink: #f2ede0;
  --ink-2: #d6d0bf;
  --muted: #9e988a;
  --muted-2: #777262;
  --line: rgba(242, 237, 224, 0.12);
  --line-strong: rgba(242, 237, 224, 0.22);
  --accent: #d8a36f;
  --accent-2: #e6b985;
  --accent-tint: rgba(216, 163, 111, 0.12);
  --shadow-1: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.4);
  --shadow-2: 0 2px 4px rgba(0,0,0,.35), 0 20px 40px rgba(0,0,0,.5);
}

/* ---- Density ---- */
html[data-density="compact"]   { --gap: 16px; --page-pad: clamp(16px, 3vw, 40px); }
html[data-density="spacious"]  { --gap: 32px; --page-pad: clamp(28px, 5vw, 72px); }

/* ---- Typography variants ---- */
html[data-typography="serif-sans"] {
  --ft-heading: var(--font-sans);
  --ft-body: var(--font-serif);
  --ft-mono-emph: var(--font-mono);
}
html[data-typography="all-sans"] {
  --ft-heading: var(--font-sans);
  --ft-body: var(--font-sans);
  --ft-mono-emph: var(--font-mono);
}
html[data-typography="mono-accent"] {
  --ft-heading: var(--font-mono);
  --ft-body: var(--font-serif);
  --ft-mono-emph: var(--font-mono);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--ft-body, var(--font-serif));
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  font-size: 16px;
  position: relative;
  overflow-x: hidden;
}

/* Procedural engineering background (subtle) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg,  rgba(26,22,16,0.04) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(90deg, rgba(26,22,16,0.04) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(45deg, rgba(26,22,16,0.03) 0 1px, transparent 1px 180px);
  opacity: var(--decor-opacity);
  pointer-events: none;
  z-index: 0;
}
html[data-palette="dark"] body::before {
  background-image:
    repeating-linear-gradient(0deg,  rgba(242,237,224,0.05) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(90deg, rgba(242,237,224,0.05) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(45deg, rgba(242,237,224,0.03) 0 1px, transparent 1px 180px);
}

/* ====== Layout ====== */
.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* ====== Sidebar ====== */
.sidebar {
  padding: 36px 28px;
  border-right: 1px solid var(--line);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.sidebar-brand { display: flex; align-items: flex-start; gap: 12px; }
.sidebar-brand h1 {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}
.brand-mark {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--accent-tint);
  color: var(--accent);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.sidebar-sub {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--muted);
  margin: 4px 0 0;
  line-height: 1.4;
}

.nav {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-family: var(--font-sans);
}
.nav a {
  color: var(--ink-2);
  text-decoration: none;
  font-weight: 500;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: background 0.15s, color 0.15s;
  text-transform: lowercase;
}
.nav-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: currentColor;
  opacity: 0.35;
  transition: opacity 0.2s;
}
.nav a:hover { background: var(--accent-tint); color: var(--accent); }
.nav a:hover .nav-dot { opacity: 0.7; }
.nav a[aria-current="page"] {
  background: var(--accent-tint);
  color: var(--accent);
  font-weight: 600;
}
.nav a[aria-current="page"] .nav-dot { opacity: 1; }

.sidebar-footer {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  overflow: hidden;
  align-self: flex-start;
  font-family: var(--font-sans);
}
.lang-toggle button {
  background: transparent;
  border: none;
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  letter-spacing: 0.04em;
}
.lang-toggle button.is-active {
  background: var(--ink);
  color: var(--bg);
}
html[data-palette="dark"] .lang-toggle button.is-active { background: var(--accent); color: var(--bg); }
.sidebar-meta {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0;
  display: flex; align-items: center; gap: 8px;
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--ok) 20%, transparent);
  animation: pulse-dot 2.4s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 2px color-mix(in oklab, var(--ok) 20%, transparent); }
  50% { box-shadow: 0 0 0 6px color-mix(in oklab, var(--ok) 10%, transparent); }
}

/* Mobile menu button */
.mobile-menu-btn {
  display: none;
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  padding: 14px 20px;
  background: color-mix(in oklab, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border: none;
  border-bottom: 1px solid var(--line);
  align-items: center;
  gap: 14px;
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  font-size: 0.95rem;
  text-transform: lowercase;
}
.hamburger {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 22px;
}
.hamburger span {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s, opacity 0.25s;
}
.hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ====== Content ====== */
.content {
  padding: var(--page-pad);
  min-width: 0;
  max-width: 100%;
}
.page {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 6vw, 80px);
}

/* ====== Hero ====== */
.hero {
  position: relative;
  padding: clamp(32px, 5vw, 64px) clamp(24px, 4vw, 48px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.hero--home { padding-block: clamp(48px, 7vw, 88px); }
.hero--narrow .hero-body { max-width: 640px; }
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 70% 20%, rgba(0,0,0,0.6), transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 70% 20%, rgba(0,0,0,0.6), transparent 70%);
  opacity: calc(var(--decor-opacity) * 1.1);
  pointer-events: none;
}
.hero-body { position: relative; max-width: 720px; }
.hero-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 18px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.hero-eyebrow::before {
  content: "";
  width: 28px; height: 1px;
  background: var(--accent);
}
.hero-title {
  font-family: var(--ft-heading, var(--font-sans));
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 20px;
  color: var(--ink);
  text-wrap: balance;
}
.hero-role {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--muted);
  margin: 0 0 20px;
}
.hero-lead {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--ink-2);
  max-width: 58ch;
  margin: 0 0 28px;
  text-wrap: pretty;
}
.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* CV hero layout */
.cv-hero-layout {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: center;
}
.cv-avatar {
  position: relative;
  width: 132px; height: 132px;
  flex-shrink: 0;
}
.cv-avatar-inner {
  position: relative;
  width: 100%; height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-tint), var(--surface-2));
  border: 1px solid var(--line);
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.05em;
  z-index: 1;
}
.cv-avatar-ring {
  position: absolute;
  inset: -8px;
  border: 1px dashed var(--line-strong);
  border-radius: 50%;
  opacity: calc(var(--decor-opacity) * 1.4);
  animation: slow-spin 60s linear infinite;
}
@keyframes slow-spin { to { transform: rotate(360deg); } }

.cv-contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 99px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--ink-2);
  background: var(--surface);
  text-decoration: none;
  transition: all 0.15s;
  cursor: pointer;
}
.chip:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.chip--action {
  background: transparent;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}
.chip.is-copied { border-color: var(--ok); color: var(--ok); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.12s, background 0.15s, border-color 0.15s, color 0.15s;
}
.btn--primary {
  background: var(--ink);
  color: var(--bg);
}
html[data-palette="dark"] .btn--primary { background: var(--accent); color: #1a1a1a; }
.btn--primary:hover { transform: translateY(-1px); background: var(--accent); color: var(--bg); }
.btn--ghost {
  background: transparent;
  color: var(--ink-2);
  border-color: var(--line-strong);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--full { width: 100%; justify-content: center; margin-top: 16px; }

/* ====== Section ====== */
.section { position: relative; }
.section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted-2);
  letter-spacing: 0.08em;
  font-weight: 500;
}
.section-head h2 {
  font-family: var(--ft-heading, var(--font-sans));
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}
.section-badge {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 99px;
}
.section-lead {
  font-size: 1.02rem;
  color: var(--muted);
  max-width: 62ch;
  margin: 0 0 24px;
  line-height: 1.6;
}
.prose p {
  max-width: 66ch;
  margin: 0 0 1em;
  line-height: 1.75;
  color: var(--ink-2);
}

/* TL;DR */
.tldr {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  padding: 20px 24px;
  background: var(--accent-tint);
  border: 1px solid color-mix(in oklab, var(--accent) 20%, transparent);
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
  align-items: start;
}
.tldr-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin: 0;
  padding-top: 2px;
}
.tldr-body {
  margin: 0;
  font-size: 1.02rem;
  color: var(--ink-2);
  line-height: 1.6;
  text-wrap: pretty;
}

/* ====== Home: portals & stats ====== */
.portal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}
.portal-card {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
  overflow: hidden;
}
.portal-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: var(--shadow-2);
}
.portal-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--accent-tint);
  color: var(--accent);
  display: grid; place-items: center;
  margin-bottom: 14px;
}
.portal-card h3 {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.portal-card p {
  font-size: 0.92rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}
.portal-arrow {
  position: absolute;
  top: 24px; right: 20px;
  color: var(--muted-2);
  font-size: 1.1rem;
  transition: transform 0.15s, color 0.15s;
}
.portal-card:hover .portal-arrow { color: var(--accent); transform: translate(3px, -3px); }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.stat {
  background: var(--surface);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.stat-value {
  font-family: var(--font-sans);
  font-size: 2rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
}
.stat-label {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--muted);
}

/* ====== TOC ====== */
.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 8px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  font-family: var(--font-sans);
  position: sticky;
  top: 12px;
  z-index: 5;
  backdrop-filter: blur(8px);
}
.toc a {
  padding: 6px 12px;
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
}
.toc a:hover { background: var(--accent-tint); color: var(--accent); }

/* ====== Timeline ====== */
.timeline {
  position: relative;
  padding-left: 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 6px; bottom: 6px;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), var(--line));
}
.timeline-item { position: relative; }
.timeline-marker {
  position: absolute;
  left: -28px; top: 10px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--accent);
}
.timeline-item--past .timeline-marker {
  border-color: var(--muted-2);
}
.timeline-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}
.timeline-head h3 {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--muted);
}
.timeline-org {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--muted);
  margin: 0 0 12px;
}
.timeline-points {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.timeline-points li {
  padding-left: 22px;
  position: relative;
  color: var(--ink-2);
  line-height: 1.55;
}
.timeline-points li::before {
  content: "→";
  position: absolute;
  left: 0; top: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  opacity: 0.6;
}

/* ====== Skills ====== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.skill-card {
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s;
}
.skill-card:hover { border-color: var(--accent); }
.skill-card-title {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.skill-card ul {
  margin: 0; padding: 0; list-style: none;
  display: flex; flex-direction: column; gap: 6px;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--ink-2);
}
.skill-card li::before { content: "▹ "; color: var(--accent); opacity: 0.6; }

/* ====== OSS grid ====== */
.oss-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.oss-card {
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.15s, transform 0.15s;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.oss-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.oss-head {
  display: flex; align-items: center; justify-content: space-between;
}
.oss-name {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
}
.oss-arrow { color: var(--muted-2); font-size: 0.9rem; }
.oss-card:hover .oss-arrow { color: var(--accent); }
.oss-desc {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.45;
}

/* ====== BDU ====== */
.bdu-year-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.year-pill {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink-2);
  cursor: pointer;
  transition: all 0.15s;
}
.year-pill:hover { border-color: var(--accent); }
.year-pill.is-active { background: var(--ink); color: var(--bg); border-color: var(--ink); }
html[data-palette="dark"] .year-pill.is-active { background: var(--accent); color: #1a1a1a; border-color: var(--accent); }
.year-pill-num { font-family: var(--font-mono); }
.year-pill-count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  opacity: 0.6;
}

.bdu-controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 14px;
}
.bdu-filters { display: flex; flex-wrap: wrap; gap: 6px; }
.filter-chip {
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 99px;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s;
}
.filter-chip:hover { border-color: var(--accent); color: var(--accent); }
.filter-chip.is-active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.bdu-search {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 99px;
  background: var(--surface);
  color: var(--muted);
  margin-left: auto;
}
.bdu-search input {
  border: none;
  background: transparent;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink);
  outline: none;
  width: 140px;
}

.bdu-count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted-2);
  margin-bottom: 12px;
}

.bdu-list {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 6px;
}
.bdu-row a {
  display: grid;
  grid-template-columns: 1fr auto auto auto auto;
  gap: 12px;
  padding: 10px 14px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  transition: border-color 0.12s, background 0.12s;
}
.bdu-row a:hover { border-color: var(--accent); background: var(--surface-2); }
.bdu-id { font-weight: 700; color: var(--ink); }
.bdu-project {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--muted);
  padding: 2px 8px;
  background: var(--bg-2);
  border-radius: 4px;
}
.bdu-year { color: var(--muted-2); font-size: 0.78rem; }
.bdu-sev {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 7px;
  border-radius: 4px;
}
.bdu-sev--high { background: color-mix(in oklab, var(--crit) 12%, transparent); color: var(--crit); }
.bdu-sev--med  { background: color-mix(in oklab, var(--warn) 14%, transparent); color: var(--warn); }
.bdu-sev--low  { background: color-mix(in oklab, var(--muted) 14%, transparent); color: var(--muted); }
.bdu-sev--na   { background: color-mix(in oklab, var(--muted-2) 16%, transparent); color: var(--muted-2); letter-spacing: 0.08em; }
.bdu-filter-sep { color: var(--muted-2); opacity: 0.6; padding: 0 2px; align-self: center; }
.bdu-arrow { color: var(--muted-2); font-size: 0.85rem; }
.bdu-row a:hover .bdu-arrow { color: var(--accent); }

.cve-details {
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  padding: 12px 16px;
  font-family: var(--font-sans);
}
.cve-details summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--ink-2);
  font-size: 0.92rem;
}
.cve-details[open] summary { margin-bottom: 12px; }

/* ====== Availability card ====== */
.availability-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}
.avail-ping {
  position: relative;
  width: 40px; height: 40px;
  display: grid; place-items: center;
}
.avail-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--ok);
  z-index: 2;
}
.avail-ring {
  position: absolute; inset: 0;
  border-radius: 50%;
  border: 2px solid var(--ok);
  opacity: 0.4;
  animation: ring-ping 2s ease-out infinite;
}
@keyframes ring-ping {
  0% { transform: scale(0.5); opacity: 0.6; }
  100% { transform: scale(1.3); opacity: 0; }
}
.avail-title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.05rem;
  margin: 0 0 4px;
  color: var(--ink);
}
.avail-sub {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.45;
}

/* ====== Reviews ====== */
.review-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.review-card {
  display: block;
  padding: 24px 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.review-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-2);
}
.review-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 10px;
}
.review-date, .review-read { display: inline-flex; align-items: center; gap: 4px; }
.review-read::before { content: "·"; margin-right: 4px; color: var(--muted-2); }
.review-project {
  margin-left: auto;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  padding: 2px 8px;
  background: var(--accent-tint);
  color: var(--accent);
  border-radius: 4px;
  font-weight: 600;
}
.review-title {
  font-family: var(--ft-heading, var(--font-sans));
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--ink);
  text-wrap: balance;
}
.review-abstract {
  font-size: 1rem;
  color: var(--ink-2);
  line-height: 1.6;
  margin: 0 0 16px;
  max-width: 70ch;
}
.review-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.review-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.review-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
}
.review-more {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
}

/* ====== Tools ====== */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.tool-card {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.tool-card--soon {
  background: var(--surface-2);
  border-style: dashed;
  opacity: 0.85;
}
.tool-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.tool-icon {
  width: 48px; height: 48px;
  border-radius: 10px;
  background: var(--accent-tint);
  color: var(--accent);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.tool-head h3 {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--ink);
}
.tool-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tool-status--stable { background: color-mix(in oklab, var(--ok) 14%, transparent); color: var(--ok); }
.tool-status--wip { background: color-mix(in oklab, var(--warn) 14%, transparent); color: var(--warn); }

.tool-usecase {
  font-size: 0.98rem;
  color: var(--ink-2);
  line-height: 1.55;
  margin: 0;
}
.tool-when {
  padding: 14px 16px;
  background: var(--bg-2);
  border-radius: var(--radius-sm);
}
.tool-when-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--muted-2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
}
.tool-when p {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--ink-2);
  line-height: 1.5;
}
.tool-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tool-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 3px 8px;
  background: var(--bg-2);
  color: var(--muted);
  border-radius: 4px;
}

/* ====== RSS / post embed ====== */
.post-embed {
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.post-embed-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.post-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--accent-tint);
  color: var(--accent);
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
}
.post-name { font-family: var(--font-sans); font-weight: 700; margin: 0; color: var(--ink); }
.post-handle { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); margin: 0; }
.post-platform {
  margin-left: auto;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--muted);
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 99px;
}
.post-body { font-size: 1.02rem; line-height: 1.65; margin: 0 0 14px; color: var(--ink-2); }
.post-foot a {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}
.post-foot a:hover { text-decoration: underline; }

/* ====== Footer ====== */
.footer {
  margin-top: clamp(40px, 6vw, 80px);
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--muted);
  text-align: center;
}
.footer p { margin: 0; }
.footer-muted { color: var(--muted-2); }

/* ====== Tweaks panel ====== */
.tweaks {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 100;
  font-family: var(--font-sans);
}
.tweaks-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--bg);
  border: none;
  border-radius: 99px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--shadow-2);
}
html[data-palette="dark"] .tweaks-toggle { background: var(--accent); color: #1a1a1a; }
.tweaks-body {
  position: absolute;
  bottom: calc(100% + 8px);
  right: 0;
  width: 280px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-2);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.tweaks-field label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.tweaks-value {
  float: right;
  font-family: var(--font-mono);
  color: var(--accent);
  text-transform: none;
  letter-spacing: 0;
}
.tweaks-seg {
  display: flex;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  overflow: hidden;
}
.tweaks-seg button {
  flex: 1;
  padding: 7px 8px;
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 500;
  transition: all 0.15s;
  text-transform: capitalize;
}
.tweaks-seg button.is-active {
  background: var(--ink);
  color: var(--bg);
}
html[data-palette="dark"] .tweaks-seg button.is-active { background: var(--accent); color: #1a1a1a; }
.tweaks-field input[type="range"] { width: 100%; accent-color: var(--accent); }
.tweaks-note {
  font-size: 0.72rem;
  color: var(--muted-2);
  line-height: 1.4;
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

/* ====== Responsive ====== */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .mobile-menu-btn { display: flex; }
  .sidebar {
    position: fixed;
    inset: 54px 0 auto 0;
    height: auto;
    max-height: calc(100vh - 54px);
    transform: translateY(-120%);
    transition: transform 0.25s;
    z-index: 40;
    border-right: none;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-2);
  }
  .sidebar--mobile-open { transform: translateY(0); }
  .content { padding: 20px; }
  .cv-hero-layout { grid-template-columns: 1fr; text-align: left; }
  .cv-avatar { margin: 0 auto 8px; }
  .cv-hero-layout .hero-eyebrow { justify-content: flex-start; }
  .availability-card { grid-template-columns: auto 1fr; }
  .availability-card .btn { grid-column: 1 / -1; justify-content: center; }
  .bdu-search { margin-left: 0; width: 100%; }
  .bdu-search input { flex: 1; width: auto; }
  .toc { position: static; }
}

@media (max-width: 560px) {
  .hero { padding: 28px 20px; }
  .hero-title { font-size: 2rem; }
  .hero-lead { font-size: 1rem; }
  .section-head { flex-wrap: wrap; }
  .bdu-row a {
    grid-template-columns: 1fr auto auto;
    gap: 8px;
  }
  .bdu-row .bdu-sev { grid-column: 2; }
  .bdu-row .bdu-year { grid-column: 3; }
  .bdu-row .bdu-arrow { display: none; }
  .tweaks-body { width: calc(100vw - 40px); right: -10px; }
  .cv-avatar { width: 108px; height: 108px; }
  .cv-avatar-inner { font-size: 2rem; }
  .timeline { padding-left: 22px; }
  .timeline-marker { left: -22px; width: 12px; height: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}