:root {
  --bg:          #0f1117;
  --bg-2:        #161b25;
  --surface:     #1c2230;
  --surface-2:   #232c3d;
  --text:        #e8e4dc;
  --text-dim:    #7a8aa8;
  --accent:      #c07a40;
  --accent-glow: rgba(192,122,64,0.12);
  --border:      rgba(255,255,255,0.07);
  --border-hover: rgba(255,255,255,0.14);
  --nav-bg:       rgba(15,17,23,0.85);
  --shadow-portrait: rgba(0,0,0,0.5);

  --font-display: 'Instrument Serif', Georgia, serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
}

[data-theme="light"] {
  --bg:          #f5f2ed;
  --bg-2:        #ede9e3;
  --surface:     #e8e3db;
  --surface-2:   #e0dbd2;
  --text:        #1a1c22;
  --text-dim:    #5a6478;
  --accent:      #a86530;
  --accent-glow: rgba(168,101,48,0.10);
  --border:      rgba(0,0,0,0.09);
  --border-hover: rgba(0,0,0,0.16);
  --nav-bg:      rgba(245,242,237,0.88);
  --shadow-portrait: rgba(0,0,0,0.18);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px;
}

img { max-width: 100%; display: block; }
ul { list-style: none; }
a { color: inherit; text-decoration: none; }
code { font-family: var(--font-mono); font-size: 0.9em; }

/* ── Navigation ───────────────────────────────────────── */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-nav__inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  height: 56px;
  gap: var(--space-lg);
}

.site-nav__brand {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.site-nav__links {
  display: flex;
  gap: var(--space-md);
  margin-left: auto;
}

.site-nav__link {
  font-size: 0.875rem;
  color: var(--text-dim);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.15s;
}

.site-nav__link:hover { color: var(--text); }

.site-nav__link[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--accent);
}

/* ── Layout ───────────────────────────────────────────── */

.stack {
  max-width: 860px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-md) var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* ── Hero — landing (full viewport) ──────────────────── */

.hero--landing {
  min-height: calc(100vh - 56px);
  max-width: 860px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md) var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

.hero__name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 400;
  line-height: 1.05;
  margin-bottom: var(--space-sm);
}

.hero__tagline {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 480px;
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.hero__nav-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  max-width: 540px;
  margin-bottom: var(--space-xl);
}

.nav-card {
  display: block;
  padding: var(--space-md) var(--space-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 2px 16px rgba(0,0,0,0.25);
  transition: transform 0.18s, border-color 0.18s, box-shadow 0.18s;
}

.nav-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-hover);
  box-shadow: 0 8px 28px rgba(0,0,0,0.4);
}

.nav-card__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.nav-card__title {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
}

.nav-card__desc {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.45;
}

.hero__intro {
  font-size: 0.95rem;
  color: var(--text-dim);
  max-width: 560px;
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.contact-row {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.contact-link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: color 0.15s, border-color 0.15s;
}

.contact-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Hero — compact (cv / pages with nav) ────────────── */

.hero--compact {
  max-width: 860px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md) var(--space-md);
}

.hero--compact .hero__inner {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.hero__photo {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid var(--border);
  box-shadow: 0 4px 20px var(--shadow-portrait);
}

.hero__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.hero__info { flex: 1; min-width: 0; }

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 6px;
}

.hero__subtitle {
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-bottom: 2px;
}

.hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.hero__link {
  font-family: var(--font-mono);
  font-size: 0.77rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
  transition: color 0.15s, border-color 0.15s;
}

.hero__link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Hero — anvil plugin page ─────────────────────────── */

.hero--anvil {
  max-width: 860px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md) var(--space-lg);
}

.hero--anvil .plugin-name {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  font-weight: 500;
  color: var(--accent);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.hero--anvil .hero__tagline {
  font-size: 1.2rem;
  color: var(--text);
  margin-bottom: var(--space-xs);
  font-weight: 400;
}

.hero--anvil .hero__sub {
  font-size: 0.92rem;
  color: var(--text-dim);
  max-width: 500px;
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.hero__credit {
  font-size: 0.8rem;
  color: var(--text-dim);
  font-style: italic;
  margin-bottom: var(--space-sm);
}

.hero__credit a {
  color: var(--accent);
  text-decoration: none;
}

.hero__credit a:hover {
  text-decoration: underline;
}

/* ── Cards ────────────────────────────────────────────── */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-md) var(--space-lg);
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.section-title {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border);
}

/* ── Entry / timeline ─────────────────────────────────── */

.entry {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
}

.entry:last-child { border-bottom: none; padding-bottom: 0; }
.section-title + .entry,
.entry:first-child { padding-top: 0; }

.entry-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: 4px;
}

.entry-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
}

.entry-date {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
}

.entry-subtitle {
  font-size: 0.855rem;
  color: var(--text-dim);
  margin-bottom: var(--space-xs);
}

.entry ul {
  margin-top: var(--space-xs);
  padding-left: var(--space-md);
  list-style: disc;
}

.entry ul li {
  font-size: 0.855rem;
  color: var(--text-dim);
  margin-bottom: 3px;
  line-height: 1.55;
}

/* ── Skills grid ──────────────────────────────────────── */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.skill-group h3 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.skill-group ul { padding-left: 0; list-style: none; }

.skill-group li {
  font-size: 0.855rem;
  color: var(--text-dim);
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
}

.skill-group li:last-child { border-bottom: none; }

/* ── Impact grid ──────────────────────────────────────── */

.impact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-sm);
}

.impact-item {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
}

.impact-item h3 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.impact-item h4 {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: var(--space-xs);
}

.impact-item p {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 3px;
}

.impact-item p strong { color: var(--text); }

/* ── Problem / offers / steps grids ──────────────────── */

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-sm);
}

.problem-grid article {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
}

.problem-grid .entry-title { font-size: 0.875rem; margin-bottom: 5px; }

.offers-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.offer-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
}

.offer-card .entry-title { font-size: 0.9rem; margin-bottom: 6px; }
.offer-card .entry-subtitle { font-size: 0.82rem; margin-bottom: var(--space-xs); }

.offer-card ul {
  padding-left: var(--space-md);
  list-style: disc;
}

.offer-card ul li {
  font-size: 0.835rem;
  color: var(--text-dim);
  margin-bottom: 3px;
  line-height: 1.5;
}

.compact-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.compact-steps article {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
}

.compact-steps .entry-title { font-size: 0.875rem; margin-bottom: 5px; }

/* ── Pill list ────────────────────────────────────────── */

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
}

.pill-list li {
  font-family: var(--font-mono);
  font-size: 0.77rem;
  color: var(--text-dim);
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 4px 12px;
}

/* ── Terminal box ─────────────────────────────────────── */

.terminal-box {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  overflow-x: auto;
  max-width: 100%;
}

.terminal-box__prompt { color: var(--accent); user-select: none; }
.terminal-box__cmd { color: var(--text); white-space: nowrap; }

.terminal-box--multi {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  width: 100%;
  gap: 0;
}

.terminal-box--block {
  display: flex;
  width: 100%;
}

.terminal-box__line {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 0;
}

.terminal-box__line:not(:last-child) {
  border-bottom: 1px solid var(--border);
}

.terminal-box--block .terminal-box__cmd,
.terminal-box__line .terminal-box__cmd {
  flex: 1;
}

.terminal-box__copy {
  margin-left: auto;
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 2px 7px;
  cursor: pointer;
  flex-shrink: 0;
  transition: color 0.15s, border-color 0.15s;
  letter-spacing: 0.04em;
}

.terminal-box__copy:hover {
  color: var(--accent);
  border-color: rgba(192,122,64,0.4);
}

.terminal-box__copy.copied {
  color: #34d399;
  border-color: rgba(52,211,153,0.3);
}

/* ── Feature rows (anvil page) ────────────────────────── */

.feature-row {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
}

.section-title + .feature-row,
.feature-row:first-child { padding-top: 0; }
.feature-row:last-child { border-bottom: none; }

.feature-row__tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(192,122,64,0.2);
  border-radius: var(--radius-sm);
  padding: 4px 9px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 2px;
  letter-spacing: 0.04em;
  min-width: 6.5rem;
  text-align: center;
}

.feature-row h3 {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 3px;
}

.feature-row p {
  font-size: 0.84rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ── Evidence table ───────────────────────────────────── */

.evidence-table-wrap { overflow-x: auto; }

.evidence-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.77rem;
}

.evidence-table th {
  text-align: left;
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
  white-space: nowrap;
}

.evidence-table td {
  padding: 8px 12px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.evidence-table tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.69rem;
  letter-spacing: 0.04em;
}

.badge--pass {
  background: rgba(52,211,153,0.1);
  color: #34d399;
  border: 1px solid rgba(52,211,153,0.22);
}

.badge--fail {
  background: rgba(248,113,113,0.1);
  color: #f87171;
  border: 1px solid rgba(248,113,113,0.22);
}

/* ── CTA card ─────────────────────────────────────────── */

.cta-card {
  border-color: rgba(192,122,64,0.18);
}

/* ── Services page — standalone hero ─────────────────── */

.hero {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  max-width: 860px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md) var(--space-md);
}

.hero-photo {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid var(--border);
  box-shadow: 0 4px 20px var(--shadow-portrait);
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.hero-content { flex: 1; min-width: 0; }

.hero-content h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 6px;
}

.hero-subtitle {
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-bottom: 2px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: var(--space-xs);
  list-style: none;
  padding: 0;
}

.hero-meta li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 3px 10px;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.hero-link {
  font-family: var(--font-mono);
  font-size: 0.77rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
  transition: color 0.15s, border-color 0.15s;
}

.hero-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Misc ─────────────────────────────────────────────── */

.thesis-link {
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
  transition: color 0.15s, border-color 0.15s;
}

.thesis-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.muted { color: var(--text-dim); font-size: 0.84rem; }

.footer-note {
  max-width: 860px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
  padding: var(--space-md);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.73rem;
  color: var(--text-dim);
}

.summary p + p { margin-top: var(--space-xs); }

/* ── Responsive 900px ─────────────────────────────────── */

@media (max-width: 900px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Responsive 720px ─────────────────────────────────── */

@media (max-width: 720px) {
  .hero--compact .hero__inner,
  .hero { flex-direction: column; gap: var(--space-sm); }

  .hero__nav-cards { grid-template-columns: 1fr; max-width: 100%; }
  .skills-grid,
  .impact-grid,
  .problem-grid,
  .offers-grid,
  .compact-steps { grid-template-columns: 1fr; }

  .site-nav__brand { display: none; }
  .card { padding: var(--space-sm); }
}

/* ── Print (CV page) ──────────────────────────────────── */

@media print {
  body::before { display: none; }
  .site-nav { display: none; }
  .card { box-shadow: none; break-inside: avoid; }
  .hero--compact { padding: 0 0 1rem; }
  .footer-note { display: none; }

  /* Force readable colours only when printing from dark theme */
  [data-theme="dark"] body { background: white; color: black; }
  [data-theme="dark"] .card { background: white; border: 1px solid #ddd; }
  [data-theme="dark"] .hero__photo { border: 1px solid #ddd; }
  [data-theme="dark"] .hero__title,
  [data-theme="dark"] .entry-title,
  [data-theme="dark"] .section-title { color: black !important; }
  [data-theme="dark"] .hero__subtitle,
  [data-theme="dark"] .hero__link,
  [data-theme="dark"] .entry-subtitle,
  [data-theme="dark"] .entry ul li,
  [data-theme="dark"] .impact-item p,
  [data-theme="dark"] .skill-group li,
  [data-theme="dark"] .muted { color: #333 !important; }
  [data-theme="dark"] .skill-group h3,
  [data-theme="dark"] .impact-item h3,
  [data-theme="dark"] .entry-date,
  [data-theme="dark"] .section-label { color: #8b5e30 !important; }
  [data-theme="dark"] .pill-list li { background: #f5f5f5; border-color: #ddd; color: #333; }
}

/* ── Theme toggle ─────────────────────────────────────── */

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color 0.15s, color 0.15s;
}

.theme-toggle:hover {
  border-color: var(--border-hover);
  color: var(--text);
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }