/* =============================================================================
   Nebula — custom theme for blog.moebius01.cc
   Dark, purple-neon, glassmorphism. No build step.
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  --bg:           #07070f;
  --bg-elev:      #0d0d18;
  --bg-card:      rgba(255,255,255,0.04);
  --bg-card-2:    rgba(255,255,255,0.06);
  --accent:       #8b5cf6;
  --accent-2:     #ec4899;
  --accent-soft:  rgba(139,92,246,0.18);
  --text:         #e2e8f0;
  --text-strong:  #f8fafc;
  --muted:        #94a3b8;
  --muted-2:      #64748b;
  --border:       rgba(139,92,246,0.18);
  --border-hover: rgba(139,92,246,0.55);
  --border-soft:  rgba(255,255,255,0.08);
  --green:        #6ee7b7;
  --amber:        #fbbf24;

  --max:  1100px;
  --max-prose: 720px;
  --max-cv: 820px;
  --radius: 12px;

  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* subtle starfield (gradient base layer) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(139,92,246,0.10), transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(236,72,153,0.06), transparent 60%);
  pointer-events: none;
  z-index: -2;
}

/* Particle canvas — homepage only, behind everything but above body::before */
.nb-particles {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: -1;
  opacity: 0.85;
}
@media print { .nb-particles { display: none !important; } }

img { max-width: 100%; height: auto; display: block; }
a   { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }

h1, h2, h3, h4 {
  color: var(--text-strong);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 1.5em 0 0.5em;
}
h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); }
h2 { font-size: clamp(1.4rem, 2.5vw, 1.8rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; }
hr { border: 0; border-top: 1px solid var(--border-soft); margin: 2.5em 0; }

code, pre, kbd {
  font-family: var(--font-mono);
  font-size: 0.92em;
}
:not(pre) > code {
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  color: #c4b5fd;
}
pre {
  background: var(--bg-elev) !important;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 1em 1.1em;
  overflow-x: auto;
}

blockquote {
  margin: 1.5em 0;
  padding: 0.4em 1.2em;
  border-left: 3px solid var(--accent);
  background: var(--bg-card);
  color: var(--muted);
  border-radius: 0 var(--radius) var(--radius) 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
}
th, td {
  padding: 0.6em 0.8em;
  border-bottom: 1px solid var(--border-soft);
  text-align: left;
}
th { color: var(--text-strong); font-weight: 600; }

/* ---------- 3. Layout ---------- */
.nb-container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.nb-main {
  flex: 1;
  padding: 3rem 0 5rem;
}

/* ---------- 4. Nav ---------- */
.nb-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7,7,15,0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: none;
  box-shadow: inset 0 -1px 0 0 rgba(139,92,246,0.15);
}
.nb-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nb-brand {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-strong);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.nb-brand span { color: var(--accent); }

.nb-nav__links {
  display: flex;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nb-nav__links a {
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.42rem 0.95rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color 0.18s, border-color 0.18s, background 0.18s, box-shadow 0.18s;
}
.nb-nav__links a:hover {
  color: var(--text-strong);
  background: var(--accent-soft);
  border-color: var(--border);
}
.nb-nav__links a.is-active {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 18px rgba(139,92,246,0.45);
}
.nb-nav__links a.is-active::before {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #fff;
  margin-right: 0.5rem;
  box-shadow: 0 0 8px rgba(255,255,255,0.7);
}

/* mobile hamburger (pure CSS toggle) */
.nb-burger { display: none; }
.nb-burger-label {
  display: none;
  width: 28px; height: 22px;
  position: relative;
  cursor: pointer;
}
.nb-burger-label span,
.nb-burger-label span::before,
.nb-burger-label span::after {
  display: block;
  position: absolute;
  width: 100%; height: 2px;
  background: var(--text);
  border-radius: 1px;
}
.nb-burger-label span { top: 10px; left: 0; }
.nb-burger-label span::before { content: ""; top: -8px; }
.nb-burger-label span::after  { content: ""; top:  8px; }

@media (max-width: 640px) {
  .nb-burger-label { display: block; }
  .nb-nav__links {
    position: absolute;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(7,7,15,0.97);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-soft);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }
  .nb-nav__links li { width: 100%; }
  .nb-nav__links a {
    display: block;
    padding: 1rem 1.25rem;
    border-radius: 0;
    border: 1px solid transparent;
    border-bottom: 1px solid var(--border-soft);
    border-left: 3px solid transparent;
    background: transparent;
    box-shadow: none;
  }
  .nb-nav__links a:hover {
    background: var(--accent-soft);
    border-color: transparent;
    border-bottom: 1px solid var(--border-soft);
  }
  .nb-nav__links a.is-active {
    color: var(--text-strong);
    background: rgba(139,92,246,0.12);
    border-left-color: var(--accent);
    border-bottom-color: var(--border-soft);
    box-shadow: none;
  }
  .nb-nav__links a.is-active::before { display: none; }
  .nb-burger:checked ~ .nb-nav__links { max-height: 320px; }
}

/* ---------- 5. Cards ---------- */
.nb-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.nb-card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 0 24px rgba(139,92,246,0.12);
}
.nb-card--link { display: block; color: inherit; }
.nb-card--link:hover { color: inherit; transform: translateY(-2px); }

.nb-grid { display: grid; gap: 1.25rem; }
.nb-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.nb-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 900px) { .nb-grid--3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .nb-grid--3, .nb-grid--2 { grid-template-columns: 1fr; } }

/* ---------- 6. Avatar & homepage hero ---------- */
.nb-hero {
  text-align: center;
  padding: 3rem 0 2rem;
}
.nb-avatar {
  width: 156px;
  height: 156px;
  border-radius: 50%;
  border: 3px solid var(--accent);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.05),
    0 0 32px rgba(139,92,246,0.45),
    0 0 64px rgba(236,72,153,0.18);
  object-fit: cover;
  margin: 0 auto 1.5rem;
  display: block;
}
.nb-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 2.8rem);
  background: linear-gradient(135deg, var(--text-strong) 0%, #c4b5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nb-hero__tagline {
  margin: 0.4rem 0 1.5rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  letter-spacing: 0.01em;
}
.nb-hero__socials {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}
.nb-social {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text);
  background: var(--bg-card);
  transition: border-color 0.2s, background 0.2s;
}
.nb-social:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-2);
  color: var(--text-strong);
}
.nb-social svg { width: 16px; height: 16px; flex-shrink: 0; }

/* ---------- 7. Section heads ---------- */
.nb-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 2rem 0 1.2rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.nb-section-head h2 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin: 0;
}
.nb-section-head a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--muted);
}
.nb-section-head a:hover { color: var(--accent-2); }

/* ---------- 8. Post cards ---------- */
.nb-post-card { display: block; }
.nb-post-card__date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted-2);
  margin-bottom: 0.4rem;
}
.nb-post-card__title {
  color: var(--text-strong);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 0.4rem;
  line-height: 1.3;
}
.nb-post-card:hover .nb-post-card__title { color: var(--accent-2); }
.nb-post-card__summary {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0 0 0.6rem;
}
.nb-tag-row {
  display: flex; gap: 0.4rem; flex-wrap: wrap;
  margin-top: 0.5rem;
}
.nb-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #c4b5fd;
  border: 1px solid var(--border);
}

/* ---------- 9. Blog reader ---------- */
.nb-article {
  max-width: var(--max-prose);
  margin: 0 auto;
}
.nb-article__header { margin-bottom: 2rem; }
.nb-article__meta {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--muted-2);
  display: flex; gap: 1rem; flex-wrap: wrap;
  margin-bottom: 0.8rem;
}
.nb-article__title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin: 0 0 0.6rem;
}
.nb-article__summary {
  font-size: 1.05rem;
  color: var(--muted);
  margin: 0;
}
.nb-prose h2 { margin-top: 2.2em; }
.nb-prose h3 { margin-top: 1.8em; }
.nb-prose ul, .nb-prose ol { padding-left: 1.4em; }
.nb-prose li { margin-bottom: 0.3em; }
.nb-prose img {
  border-radius: var(--radius);
  border: 1px solid var(--border-soft);
  margin: 1.5em auto;
}

.nb-toc {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0 2.5rem;
  font-size: 0.92rem;
}
.nb-toc__label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.nb-toc ul { padding-left: 1.2em; margin: 0; }
.nb-toc a { color: var(--muted); }
.nb-toc a:hover { color: var(--accent-2); }

/* ---------- 10. Portfolio (CV) ---------- */
.nb-cv { max-width: var(--max-cv); margin: 0 auto; }
.nb-cv__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
  gap: 1rem;
}
.nb-cv__name {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  margin: 0 0 0.2rem;
  letter-spacing: -0.02em;
}
.nb-cv__role {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  margin: 0 0 0.8rem;
}
.nb-cv__contact {
  color: var(--muted);
  font-size: 0.9rem;
  display: flex; gap: 0.6rem; flex-wrap: wrap;
}
.nb-cv__contact span { display: inline-flex; align-items: center; gap: 0.4rem; }
.nb-pdf-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.2s, color 0.2s;
}
.nb-pdf-btn:hover { border-color: var(--accent); color: var(--accent); }

.nb-cv__section { margin: 2.5rem 0; }
.nb-cv__h {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin: 0 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}
.nb-competencies {
  list-style: none;
  padding: 0; margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 1.5rem;
}
.nb-competencies li {
  color: var(--text);
  font-size: 0.92rem;
  padding-left: 1em;
  position: relative;
}
.nb-competencies li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
}
@media (max-width: 640px) { .nb-competencies { grid-template-columns: 1fr; } }

.nb-role {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.1rem 1.3rem;
  margin-bottom: 1rem;
}
.nb-role__title {
  margin: 0 0 0.2rem;
  font-size: 1.05rem;
  color: var(--text-strong);
}
.nb-role__company {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 0.7rem;
}
.nb-role__company .nb-period { color: var(--accent-2); }
.nb-role ul { margin: 0; padding-left: 1.2em; }
.nb-role li { margin-bottom: 0.4em; color: var(--text); font-size: 0.93rem; }

.nb-edu li, .nb-cv__plain li { margin-bottom: 0.4em; }
.nb-edu .nb-period {
  font-family: var(--font-mono);
  color: var(--muted-2);
  font-size: 0.85rem;
  margin-left: 0.4em;
}

.nb-certs { display: flex; flex-wrap: wrap; gap: 0.5rem; list-style: none; padding: 0; margin: 0; }
.nb-cert {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
}

.nb-langs { display: flex; gap: 1.5rem; flex-wrap: wrap; padding: 0; list-style: none; margin: 0; }
.nb-langs li { color: var(--text); }
.nb-langs li span { color: var(--muted); font-size: 0.85rem; margin-left: 0.3em; }

/* ---------- 11. Projects ---------- */
.nb-proj-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  height: 100%;
}
.nb-proj-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.8rem;
}
.nb-proj-card__title {
  margin: 0;
  font-size: 1.05rem;
  color: var(--text-strong);
}
.nb-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  white-space: nowrap;
  border: 1px solid transparent;
}
.nb-status[data-status="in-progress"] { background: rgba(139,92,246,0.18); color: #c4b5fd; border-color: rgba(139,92,246,0.35); }
.nb-status[data-status="planned"]     { background: rgba(100,116,139,0.18); color: #cbd5e1; border-color: rgba(100,116,139,0.35); }
.nb-status[data-status="completed"]   { background: rgba(16,185,129,0.15);  color: #6ee7b7; border-color: rgba(16,185,129,0.30); }

.nb-proj-card__summary {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0;
  flex: 1;
}
.nb-proj-card .nb-tag-row { margin-top: 0.3rem; }

/* ---------- 12. Footer ---------- */
.nb-footer {
  border-top: 1px solid var(--border-soft);
  padding: 1.8rem 0;
  background: rgba(7,7,15,0.5);
  color: var(--muted-2);
  font-size: 0.85rem;
}
.nb-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.nb-footer__links { display: flex; gap: 1rem; }
.nb-footer__links a { color: var(--muted); }
.nb-footer__links a:hover { color: var(--accent-2); }

/* ---------- 13. 404 ---------- */
.nb-404 {
  text-align: center;
  padding: 5rem 0;
}
.nb-404 .nb-404__code {
  font-family: var(--font-mono);
  font-size: clamp(4rem, 12vw, 7rem);
  margin: 0;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.nb-404 p { color: var(--muted); margin: 1rem 0 2rem; }

/* ---------- 14. Recent / list pages ---------- */
.nb-list { max-width: var(--max-prose); margin: 0 auto; }
.nb-list h1 { margin-top: 0; }
.nb-list__year {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--muted-2);
  text-transform: uppercase;
  margin: 2rem 0 0.6rem;
}
.nb-list__item {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border-soft);
  display: block;
}
.nb-list__item:last-child { border-bottom: none; }
.nb-list__item:hover .nb-list__title { color: var(--accent-2); }
.nb-list__date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted-2);
}
.nb-list__title {
  font-size: 1.1rem;
  color: var(--text-strong);
  margin: 0.25rem 0 0.25rem;
  font-weight: 600;
}
.nb-list__summary { color: var(--muted); font-size: 0.92rem; margin: 0; }

/* ---------- 15. Pagination ---------- */
.nb-pagination {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}
.nb-pagination a { color: var(--muted); }
.nb-pagination a:hover { color: var(--accent-2); }

/* =============================================================================
   17. Portfolio v2 — interactive Power CV
   ========================================================================== */

/* Action button row in header */
.nb-cv__actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.nb-cv__actions .nb-pdf-btn,
.nb-cv__actions .nb-copy-btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
}
.nb-copy-btn { font-family: var(--font-mono); }
.nb-copy-btn svg { width: 14px; height: 14px; }

/* Stats row */
.nb-cv__stats {
  display: flex;
  gap: 0.6rem 2rem;
  flex-wrap: wrap;
  margin: 0 0 2rem;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--muted);
}
.nb-cv__stats > div { display: flex; flex-direction: column; }
.nb-cv__stats strong {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.nb-cv__stats span { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; margin-top: 0.25rem; }

/* "Currently" panel */
.nb-cv__currently {
  background: linear-gradient(135deg, rgba(139,92,246,0.08), rgba(236,72,153,0.04));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 0 0 2rem;
}
.nb-cv__currently .nb-cv__h-sm {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.6rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.nb-cv__currently .nb-cv__h-sm::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent), 0 0 16px rgba(139,92,246,0.6);
  animation: nb-pulse 2.4s ease-in-out infinite;
}
@keyframes nb-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.nb-cv__currently ul { margin: 0; padding: 0; list-style: none; }
.nb-cv__currently li {
  position: relative;
  padding: 0.15rem 0 0.15rem 1.1rem;
  color: var(--text);
  font-size: 0.92rem;
}
.nb-cv__currently li::before {
  content: "▸";
  position: absolute; left: 0;
  color: var(--accent-2);
}

/* Filter chips */
.nb-cv__filters {
  display: flex; flex-wrap: wrap; gap: 0.4rem;
  margin: 0 0 2rem;
  padding: 0.5rem 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  position: sticky;
  top: 64px;
  background: rgba(7,7,15,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 10;
}
.nb-chip {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.nb-chip:hover { color: var(--text); border-color: var(--border-hover); }
.nb-chip.is-active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 16px rgba(139,92,246,0.45);
}

/* Two-column layout: main + sidebar TOC */
.nb-cv__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 180px;
  gap: 2.5rem;
  align-items: start;
}
.nb-cv__main { min-width: 0; }
.nb-cv__sidebar {
  position: sticky;
  top: 120px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  border-left: 1px solid var(--border-soft);
  padding-left: 1rem;
}
.nb-cv__sidebar ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.nb-cv__sidebar a {
  color: var(--muted);
  display: block;
  padding: 0.2rem 0;
  border-left: 2px solid transparent;
  padding-left: 0.6rem;
  margin-left: -0.6rem;
  transition: color 0.15s, border-color 0.15s;
}
.nb-cv__sidebar a:hover { color: var(--text-strong); }
.nb-cv__sidebar a.is-active {
  color: var(--accent);
  border-left-color: var(--accent);
}
@media (max-width: 900px) {
  .nb-cv__layout { grid-template-columns: 1fr; }
  .nb-cv__sidebar { display: none; }
}

/* Skill matrix */
.nb-skill-matrix {
  list-style: none;
  padding: 0; margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 1.5rem;
}
@media (max-width: 640px) { .nb-skill-matrix { grid-template-columns: 1fr; } }
.nb-skill {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.6rem;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: default;
  transition: background 0.15s, border-color 0.15s;
}
.nb-skill:hover {
  background: var(--bg-card);
  border-color: var(--border);
}
.nb-skill__name { color: var(--text); font-size: 0.9rem; }
.nb-skill__bar { display: inline-flex; gap: 3px; }
.nb-skill__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(139,92,246,0.18);
  display: inline-block;
}
.nb-skill__dot.is-filled {
  background: var(--accent);
  box-shadow: 0 0 6px rgba(139,92,246,0.6);
}
.nb-skill__years {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted-2);
  min-width: 2.2em;
  text-align: right;
}

/* Timeline */
.nb-timeline {
  list-style: none;
  padding: 0; margin: 0;
  position: relative;
}
.nb-timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent) 0%, rgba(139,92,246,0.1) 100%);
  border-radius: 1px;
}
.nb-timeline__item { position: relative; padding-left: 2rem; margin-bottom: 1.25rem; }
.nb-timeline__dot {
  position: absolute;
  left: 0;
  top: 0.85rem;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 3px var(--bg), 0 0 12px rgba(139,92,246,0.5);
  transition: transform 0.2s, box-shadow 0.2s;
}
.nb-timeline__item.is-pulsed .nb-timeline__dot {
  background: var(--accent);
  transform: scale(1.2);
}
.nb-timeline__item.is-pulsed .nb-role {
  border-color: var(--accent);
  box-shadow: 0 0 18px rgba(139,92,246,0.25);
}

/* Override .nb-role (defined earlier) for v2 — collapsible */
.nb-role[open] > summary .nb-role__chev,
.nb-role > summary .nb-role__chev { transition: transform 0.2s; }
.nb-role[open] > summary .nb-role__chev { transform: rotate(90deg); }
.nb-role > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.2rem 0;
  user-select: none;
}
.nb-role > summary::-webkit-details-marker { display: none; }
.nb-role > summary::marker { display: none; }
.nb-role__chev {
  display: inline-block;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  width: 14px;
  margin-top: 0.15rem;
}
.nb-role > summary > div { flex: 1; min-width: 0; }
.nb-role > summary h3 { margin: 0 0 0.2rem; font-size: 1.05rem; color: var(--text-strong); }
.nb-role[open] > summary { margin-bottom: 0.6rem; }
.nb-role ul { margin: 0.4rem 0 0; padding-left: 1.2em; }
.nb-role ul li {
  position: relative;
  margin-bottom: 0.4em;
  color: var(--text);
  font-size: 0.93rem;
  padding-right: 0;
}
.nb-bullet-tag {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.1rem 0.45rem;
  margin-left: 0.5rem;
  border-radius: 999px;
  background: rgba(139,92,246,0.12);
  color: #a78bfa;
  border: 1px solid rgba(139,92,246,0.2);
  vertical-align: middle;
}

/* Filter rules — applied via body[data-filter] */
body[data-filter]:not([data-filter="all"]) .nb-skill { display: none; }
body[data-filter]:not([data-filter="all"]) .nb-timeline__item { display: none; }
body[data-filter]:not([data-filter="all"]) .nb-role ul > li[data-tags] { display: none; }

body[data-filter="cloud"]      .nb-skill[data-tags~="cloud"],
body[data-filter="infra"]      .nb-skill[data-tags~="infra"],
body[data-filter="security"]   .nb-skill[data-tags~="security"],
body[data-filter="ai"]         .nb-skill[data-tags~="ai"],
body[data-filter="devops"]     .nb-skill[data-tags~="devops"],
body[data-filter="leadership"] .nb-skill[data-tags~="leadership"],
body[data-filter="fullstack"]  .nb-skill[data-tags~="fullstack"] { display: grid; }

body[data-filter="cloud"]      .nb-timeline__item[data-skills~="cloud"],
body[data-filter="infra"]      .nb-timeline__item[data-skills~="infra"],
body[data-filter="security"]   .nb-timeline__item[data-skills~="security"],
body[data-filter="ai"]         .nb-timeline__item[data-skills~="ai"],
body[data-filter="devops"]     .nb-timeline__item[data-skills~="devops"],
body[data-filter="leadership"] .nb-timeline__item[data-skills~="leadership"],
body[data-filter="fullstack"]  .nb-timeline__item[data-skills~="fullstack"] { display: block; }

body[data-filter="cloud"]      .nb-role ul > li[data-tags~="cloud"],
body[data-filter="infra"]      .nb-role ul > li[data-tags~="infra"],
body[data-filter="security"]   .nb-role ul > li[data-tags~="security"],
body[data-filter="ai"]         .nb-role ul > li[data-tags~="ai"],
body[data-filter="devops"]     .nb-role ul > li[data-tags~="devops"],
body[data-filter="leadership"] .nb-role ul > li[data-tags~="leadership"],
body[data-filter="fullstack"]  .nb-role ul > li[data-tags~="fullstack"] { display: list-item; }

/* Toast */
.nb-toast {
  position: fixed;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-elev);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 0.6rem 1.2rem;
  color: var(--text-strong);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  box-shadow: 0 0 24px rgba(139,92,246,0.3);
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
  z-index: 100;
}
.nb-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Reveal-on-scroll */
.nb-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}
.nb-reveal.is-revealed,
html.no-js .nb-reveal {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .nb-reveal { opacity: 1; transform: none; transition: none; }
}

/* =============================================================================
   18. Blog index — hero + featured card + 2-col grid
   ========================================================================== */
.nb-blog { max-width: var(--max); margin: 0 auto; }

.nb-blog__hero {
  padding: 1rem 0 2rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-soft);
}
.nb-blog__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 0.4rem;
}
.nb-blog__hero h1 {
  font-size: clamp(2rem, 4.5vw, 2.8rem);
  margin: 0 0 0.6rem;
  background: linear-gradient(135deg, var(--text-strong) 0%, #c4b5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}
.nb-blog__tagline {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 0.8rem;
  max-width: 60ch;
}
.nb-blog__meta {
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  margin: 0;
}

.nb-blog__featured {
  display: grid;
  gap: 0.8rem;
  padding: 1.8rem 2rem;
  margin-bottom: 3rem;
  position: relative;
  background: linear-gradient(135deg, rgba(139,92,246,0.10), rgba(236,72,153,0.04));
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.nb-blog__featured:hover {
  border-color: var(--border-hover);
  box-shadow: 0 0 32px rgba(139,92,246,0.18);
  transform: translateY(-2px);
}
.nb-blog__featured-meta {
  display: flex; gap: 1rem; flex-wrap: wrap; align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted-2);
}
.nb-blog__featured-flag {
  margin-left: auto;
  padding: 0.18rem 0.65rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.7rem;
  font-weight: 600;
  box-shadow: 0 0 14px rgba(139,92,246,0.45);
}
.nb-blog__featured-title {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  margin: 0;
  color: var(--text-strong);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.nb-blog__featured:hover .nb-blog__featured-title { color: var(--accent-2); }
.nb-blog__featured-summary {
  color: var(--muted);
  margin: 0;
  font-size: 1rem;
  line-height: 1.55;
}
.nb-blog__featured-cta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-top: 0.4rem;
  letter-spacing: 0.04em;
}
.nb-blog__featured:hover .nb-blog__featured-cta { color: var(--accent-2); }

.nb-blog__year-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1rem 0 1.2rem;
}
.nb-blog__year {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
}
.nb-blog__year-rule {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
}
.nb-blog__year-count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted-2);
}

.nb-blog__grid { margin-bottom: 2.5rem; }

@media (max-width: 640px) {
  .nb-blog__featured { padding: 1.4rem 1.2rem; }
  .nb-blog__featured-flag { margin-left: 0; }
}

/* ---------- 16. Print stylesheet (CV → PDF) ---------- */
@media print {
  :root { color-scheme: light; }
  body::before { display: none; }
  body { background: #fff !important; color: #111 !important; }
  .nb-nav, .nb-footer, .nb-pdf-btn { display: none !important; }
  .nb-main { padding: 0; }
  .nb-hero h1, .nb-cv__name {
    -webkit-text-fill-color: #111 !important;
    background: none !important;
    color: #111 !important;
  }
  .nb-cv__h, .nb-section-head h2 { color: #444 !important; border-color: #999 !important; }
  .nb-cv__role { color: #333 !important; }
  .nb-cv__contact, .nb-role__company, .nb-list__date, .nb-post-card__date { color: #555 !important; }
  .nb-role {
    background: transparent !important;
    border: none !important;
    border-left: 2px solid #444 !important;
    page-break-inside: avoid;
  }
  .nb-cert, .nb-tag {
    background: transparent !important;
    color: #222 !important;
    border-color: #999 !important;
  }
  .nb-competencies li::before { color: #555 !important; }
  a { color: #111 !important; text-decoration: underline; }

  /* Portfolio v2 — print resets */
  .nb-cv__filters, .nb-cv__sidebar, .nb-cv__stats, .nb-cv__currently,
  .nb-toast, .nb-copy-btn, .nb-bullet-tag, .nb-particles { display: none !important; }
  .nb-cv__layout { display: block !important; }
  .nb-skill { display: grid !important; }
  .nb-timeline__item { display: block !important; }
  .nb-role ul > li[data-tags] { display: list-item !important; }
  .nb-role[open] > summary, .nb-role > summary { cursor: default; }
  .nb-role { display: block !important; }
  .nb-role > summary { display: block; padding: 0; }
  .nb-role > summary > div { display: block; }
  .nb-role ul { display: block !important; margin-top: 0.4em; }
  details > summary { list-style: none; }
  details:not([open]) > * { display: none; }
  details > summary, details > summary ~ * { display: block !important; }
  .nb-timeline::before { background: #999 !important; }
  .nb-timeline__dot { background: #fff !important; border-color: #555 !important; box-shadow: none !important; }
  .nb-skill__dot { background: #ccc !important; box-shadow: none !important; }
  .nb-skill__dot.is-filled { background: #333 !important; }
  .nb-reveal { opacity: 1 !important; transform: none !important; }
}