/* ============ Tokens ============ */
:root {
  --bg: #fafafa;
  --bg-elev: #f2f2f2;
  --bg-card: #ffffff;
  --fg: #0a0a0a;
  --fg-muted: #737373;
  --fg-faint: #a3a3a3;
  --line: #e5e5e5;
  --line-strong: #c4c4c4;
  --accent: #0a0a0a;
  --accent-2: #404040;
  --accent-soft: #efefef;
  --node: #0a0a0a;
  --edge: rgba(10, 10, 10, 0.18);
  --edge-hot: rgba(10, 10, 10, 0.85);
  --green: #0a0a0a;
  --blue: #0a0a0a;
  --violet: #0a0a0a;
  --red: #0a0a0a;
}

[data-theme="dark"] {
  --bg: #0a0a0a;
  --bg-elev: #141414;
  --bg-card: #1a1a1a;
  --fg: #fafafa;
  --fg-muted: #888888;
  --fg-faint: #525252;
  --line: #262626;
  --line-strong: #3a3a3a;
  --accent: #fafafa;
  --accent-2: #cccccc;
  --accent-soft: #1a1a1a;
  --node: #fafafa;
  --edge: rgba(250, 250, 250, 0.18);
  --edge-hot: rgba(250, 250, 250, 0.85);
  --green: #fafafa;
  --blue: #fafafa;
  --violet: #fafafa;
  --red: #fafafa;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body { min-height: 100vh; overflow-x: hidden; }

::selection { background: var(--accent); color: var(--bg); }

/* ============ Typography ============ */
.serif { font-family: 'DM Sans', system-ui, sans-serif; font-weight: 400; letter-spacing: -0.01em; }
.mono { font-family: 'IBM Plex Mono', monospace; }
.sans { font-family: 'DM Sans', system-ui, sans-serif; }

h1, h2, h3, h4 { font-weight: 500; letter-spacing: -0.02em; }
a { color: inherit; text-decoration: none; cursor: pointer; }
a:hover { color: var(--accent); }

.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.muted { color: var(--fg-muted); }
.accent { color: var(--accent); }

/* ============ Telemetry ribbon ============ */
.telemetry {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  overflow: hidden;
  height: 32px;
  display: flex;
  align-items: stretch;
}
.telemetry-cell {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  border-right: 1px solid var(--line);
  white-space: nowrap;
  flex-shrink: 0;
}
.telemetry-cell.live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.3); }
}
.telemetry-cell .val { color: var(--fg); }
.telemetry-cell .hot { color: var(--accent); }
.telemetry-stream {
  flex: 1;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  min-width: 0;
}
.telemetry-stream-inner {
  display: flex;
  gap: 32px;
  white-space: nowrap;
  animation: marquee 80s linear infinite;
  padding-left: 100%;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-100%); }
}
.telemetry-bgp {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}
.telemetry-bgp .pfx { color: var(--fg); }
.telemetry-bgp .as { color: var(--accent); }
.telemetry-bgp .op-a { color: var(--green); }
.telemetry-bgp .op-w { color: var(--red); }

/* sparkline mini */
.spark {
  display: inline-flex;
  align-items: flex-end;
  gap: 1px;
  height: 12px;
  margin-left: 4px;
}
.spark span {
  width: 2px;
  background: var(--accent);
  transition: height 0.3s ease;
}

/* ============ Nav (slim, on inner pages) ============ */
.nav {
  position: sticky;
  top: 32px;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: color-mix(in oklab, var(--bg) 80%, transparent);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  max-width: 1400px;
  margin: 0 auto;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 20px;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  color: var(--fg);
}
.brand-mark { width: 24px; height: 24px; }
.brand-name { letter-spacing: -0.02em; }
.brand-sub {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--fg-muted);
  text-transform: uppercase;
  margin-left: 2px;
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--fg-muted);
  transition: all 0.15s ease;
}
.nav-link:hover { color: var(--fg); }
.nav-link.active {
  color: var(--accent);
  background: var(--accent-soft);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.cmd-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.06em;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 5px 10px;
  cursor: pointer;
}
.cmd-trigger:hover { border-color: var(--accent); color: var(--accent); }
.cmd-trigger kbd {
  font-family: inherit;
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 10px;
}

.theme-toggle {
  display: flex;
  align-items: center;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px;
}
.theme-toggle button {
  background: none;
  border: none;
  padding: 4px 8px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--fg-muted);
  font-size: 10px;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.1em;
}
.theme-toggle button.on {
  background: var(--bg-card);
  color: var(--fg);
}

/* ============ Atlas (home) ============ */
.atlas {
  position: fixed;
  top: 32px; /* below telemetry */
  left: 0; right: 0; bottom: 0;
  background: var(--bg);
  overflow: hidden;
}
.atlas-canvas {
  position: absolute;
  inset: 0;
  cursor: grab;
}
.atlas-canvas:active { cursor: grabbing; }

.atlas-headline {
  position: absolute;
  top: 56px;
  left: 48px;
  max-width: 420px;
  pointer-events: none;
  z-index: 5;
}
.atlas-headline .eyebrow {
  margin-bottom: 14px;
}
.atlas-headline h1 {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: clamp(40px, 4.6vw, 64px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.04em;
}
.atlas-headline h1 em {
  font-style: italic;
  font-weight: 500;
  color: var(--fg);
}
.atlas-headline p {
  margin-top: 18px;
  font-size: 14px;
  color: var(--fg-muted);
  max-width: 38ch;
  line-height: 1.55;
}

.atlas-legend {
  position: absolute;
  bottom: 28px;
  left: 56px;
  display: flex;
  gap: 24px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  pointer-events: none;
  z-index: 5;
}
.legend-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}
.atlas-readout {
  position: absolute;
  bottom: 28px;
  right: 56px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  text-align: right;
  pointer-events: none;
  z-index: 5;
}
.atlas-readout .val { color: var(--fg); }

.atlas-tooltip {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--line-strong);
  padding: 16px 20px;
  border-radius: 4px;
  max-width: 320px;
  pointer-events: none;
  z-index: 20;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  transform: translate(16px, -50%);
}
.atlas-tooltip .ttl {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.atlas-tooltip .ttitle {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.atlas-tooltip .tsub {
  font-size: 12px;
  color: var(--fg-muted);
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.06em;
}
.atlas-tooltip .ttags {
  display: flex; gap: 4px; margin-top: 8px; flex-wrap: wrap;
}

.atlas-hint {
  position: absolute;
  top: 64px;
  right: 56px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--fg-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: right;
  pointer-events: none;
  z-index: 5;
}
.atlas-hint .key {
  display: inline-block;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 6px;
  color: var(--fg);
}

/* ============ Traceroute transition overlay ============ */
.traceroute {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 32px;
  pointer-events: none;
  opacity: 0;
}
.traceroute.on { opacity: 1; pointer-events: auto; animation: tracein 0.15s ease; }
@keyframes tracein { from { opacity: 0; } to { opacity: 1; } }
.traceroute-card {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--fg);
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 24px 32px;
  min-width: 480px;
  max-width: 90vw;
}
.traceroute-card h4 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-muted);
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.traceroute-cmd { color: var(--accent); margin-bottom: 16px; }
.trace-hop {
  display: grid;
  grid-template-columns: 30px 1fr 70px;
  gap: 12px;
  padding: 4px 0;
  opacity: 0;
  animation: hop 0.3s ease forwards;
}
.trace-hop .h { color: var(--fg-muted); }
.trace-hop .a { color: var(--fg); }
.trace-hop .t { color: var(--green); text-align: right; }
.trace-hop:nth-child(2) { animation-delay: 0.05s; }
.trace-hop:nth-child(3) { animation-delay: 0.10s; }
.trace-hop:nth-child(4) { animation-delay: 0.15s; }
.trace-hop:nth-child(5) { animation-delay: 0.20s; }
.trace-hop:nth-child(6) { animation-delay: 0.25s; }
@keyframes hop {
  from { opacity: 0; transform: translateX(-8px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ============ Command palette ============ */
.cmd-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: color-mix(in oklab, var(--bg) 70%, black);
  backdrop-filter: blur(6px);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 12vh;
  animation: tracein 0.15s ease;
}
.cmd-box {
  width: min(640px, 90vw);
  background: var(--bg-card);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.3);
}
.cmd-input-wrap {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding: 0 16px;
}
.cmd-input-wrap .prompt {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  color: var(--accent);
  margin-right: 12px;
}
.cmd-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 16px 0;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  color: var(--fg);
  outline: none;
}
.cmd-hint {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--fg-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.cmd-results {
  max-height: 50vh;
  overflow-y: auto;
}
.cmd-result {
  padding: 12px 20px;
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 16px;
  cursor: pointer;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  align-items: center;
}
.cmd-result:hover, .cmd-result.sel {
  background: var(--accent-soft);
  color: var(--accent);
}
.cmd-result .kind {
  color: var(--fg-muted);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.cmd-result.sel .kind { color: var(--accent); }
.cmd-result .label {
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 14px;
  letter-spacing: 0;
}
.cmd-result.sel .label { color: var(--accent); }
.cmd-result .meta {
  color: var(--fg-faint);
  font-size: 10px;
  letter-spacing: 0.05em;
}
.cmd-foot {
  padding: 12px 20px;
  border-top: 1px solid var(--line);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--fg-muted);
  display: flex;
  justify-content: space-between;
  letter-spacing: 0.06em;
}
.cmd-foot kbd {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 1px 5px;
  border-radius: 3px;
  margin: 0 4px;
  color: var(--fg);
}

/* ============ Bg graph layer (persistent) ============ */
.bg-graph {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.4;
}
[data-theme="dark"] .bg-graph { opacity: 0.35; }

/* ============ Layout (inner pages) ============ */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
  position: relative;
  z-index: 1;
}

.page {
  flex: 1;
  padding: 48px 0 120px;
  animation: fadein 0.5s ease;
  position: relative;
  z-index: 1;
}
@keyframes fadein {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============ Page header (inner) ============ */
.page-header {
  padding: 24px 0 64px;
  margin-bottom: 48px;
  position: relative;
  border-bottom: 1px solid var(--line);
}
.page-header-loc {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--fg-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.page-header-loc .as { color: var(--accent); }
.page-header h1 {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: clamp(48px, 6.4vw, 88px);
  font-weight: 500;
  line-height: 0.96;
  letter-spacing: -0.04em;
}
.page-header h1 em { font-style: italic; font-weight: 500; }
.page-header p {
  margin-top: 16px;
  font-size: 17px;
  color: var(--fg-muted);
  max-width: 580px;
  line-height: 1.55;
}
.page-header-meta {
  display: flex;
  gap: 24px;
  margin-top: 32px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.page-header-meta span { color: var(--fg); }

/* ============ Filters ============ */
.filter-row {
  display: flex;
  gap: 6px;
  margin-bottom: 32px;
  flex-wrap: wrap;
  align-items: center;
}
.filter-row .filter-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-right: 8px;
}
.filter-pill {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  cursor: pointer;
  color: var(--fg-muted);
  background: transparent;
}
.filter-pill:hover { color: var(--fg); border-color: var(--line-strong); }
.filter-pill.on {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

/* ============ Packet rows (publications + talks) ============ */
.pkt-head {
  display: grid;
  grid-template-columns: 50px 90px 1fr 200px 110px 90px;
  gap: 16px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line-strong);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-muted);
  background: var(--bg-elev);
}
.pkt-row {
  display: grid;
  grid-template-columns: 50px 90px 1fr 200px 110px 90px;
  gap: 16px;
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  align-items: center;
  cursor: pointer;
  transition: background 0.15s ease;
}
.pkt-row:hover { background: var(--accent-soft); }
.pkt-row .seq { color: var(--fg-faint); }
.pkt-row .yr { color: var(--accent); font-weight: 500; }
.pkt-row .title {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--fg);
  line-height: 1.25;
}
.pkt-row .authors { color: var(--fg-muted); font-size: 11px; line-height: 1.5; }
.pkt-row .authors strong { color: var(--fg); font-weight: 500; }
.pkt-row .venue { color: var(--fg); letter-spacing: 0.08em; text-transform: uppercase; font-size: 10px; }
.pkt-row .size {
  color: var(--fg-muted);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-align: right;
}
.pkt-actions {
  display: flex;
  gap: 4px;
  justify-content: flex-end;
}
.pkt-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--line-strong);
  padding: 4px 8px;
  border-radius: 2px;
  cursor: pointer;
  color: var(--fg-muted);
  background: transparent;
}
.pkt-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ============ Research row ============ */
.research-row {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 40px;
  padding: 36px 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: padding 0.2s ease;
  align-items: start;
  position: relative;
}
.research-row:hover { padding-left: 16px; }
.research-row:hover .research-title { color: var(--accent); }
.research-tag-ascii {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
  padding-top: 6px;
}
.research-tag-ascii .yr { color: var(--accent); display: block; margin-bottom: 4px; font-size: 12px; }
.research-tag-ascii .st { display: block; margin-top: 4px; }
.research-title {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 36px;
  line-height: 1.05;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  transition: color 0.2s ease;
  max-width: 720px;
}
.research-sum {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  max-width: 680px;
}
.research-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.research-arrow {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--fg-muted);
  align-self: center;
}

.tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  color: var(--fg-muted);
}
.tag.hot {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}
.tag.green { color: var(--green); border-color: var(--green); }
.tag.blue { color: var(--blue); border-color: var(--blue); }

/* ============ Blog ============ */
.blog-row {
  display: grid;
  grid-template-columns: 140px 1fr 100px;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  align-items: start;
  transition: padding 0.2s ease;
}
.blog-row:hover { padding-left: 16px; }
.blog-row:hover .blog-title { color: var(--accent); }
.blog-date {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
}
.blog-title {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 26px;
  line-height: 1.2;
  margin-bottom: 6px;
  transition: color 0.2s ease;
}
.blog-excerpt {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}
.blog-read {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-muted);
  text-align: right;
}

/* ============ Labs ============ */
.grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.lab-card {
  background: var(--bg);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: background 0.2s ease;
  min-height: 280px;
}
.lab-card:hover { background: var(--bg-elev); }
.lab-head {
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  text-transform: uppercase;
}
.lab-diff {
  padding: 3px 8px;
  border-radius: 2px;
  letter-spacing: 0.1em;
}
.lab-diff.beg { background: rgba(74, 138, 93, 0.15); color: var(--green); }
.lab-diff.int { background: var(--accent-soft); color: var(--accent); }
.lab-diff.adv { background: rgba(193, 64, 64, 0.12); color: var(--red); }
.lab-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}
.lab-title {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 26px;
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.lab-sum {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.55;
}
.lab-meta {
  display: flex;
  gap: 20px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--fg-muted);
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  letter-spacing: 0.1em;
}
.lab-meta span { color: var(--fg); }

/* ============ Talks ============ */
.talk-row {
  display: grid;
  grid-template-columns: 60px 1fr 220px;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
  font-family: 'IBM Plex Mono', monospace;
}
.talk-row .talk-num {
  font-size: 11px;
  color: var(--fg-faint);
  letter-spacing: 0.1em;
  padding-top: 6px;
}
.talk-row .talk-title {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 24px;
  line-height: 1.2;
  color: var(--fg);
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}
.talk-row .talk-where {
  color: var(--accent);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.talk-row .talk-loc {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 13px;
  color: var(--fg-muted);
}
.talk-row .talk-meta {
  text-align: right;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  text-transform: uppercase;
}
.talk-row .talk-meta .date { color: var(--fg); }
.talk-row .talk-meta .kind { display: block; margin-top: 4px; color: var(--fg-faint); font-size: 10px; }

/* ============ Teaching ============ */
.teach-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.teach-card {
  border: 1px solid var(--line);
  padding: 24px;
  background: var(--bg-elev);
}
.teach-code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.12em;
}
.teach-title {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 26px;
  margin-top: 8px;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.teach-meta {
  display: flex;
  gap: 16px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--fg-muted);
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.teach-meta span { color: var(--fg); }

/* ============ CV ============ */
.cv-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
}
.cv-section { margin-bottom: 48px; }
.cv-section h3 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.cv-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  padding: 12px 0;
  align-items: start;
}
.cv-when {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
}
.cv-what h4 {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 20px;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.cv-what p {
  font-size: 14px;
  color: var(--fg-muted);
  margin-top: 4px;
}
.cv-sidebar {
  position: sticky;
  top: 130px;
  align-self: start;
}
.placeholder-img {
  background:
    repeating-linear-gradient(135deg, var(--bg-elev) 0, var(--bg-elev) 12px, var(--bg-card) 12px, var(--bg-card) 24px);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.headshot { width: 100%; aspect-ratio: 4/5; margin-bottom: 20px; }

/* ============ Detail page ============ */
.detail {
  max-width: 760px;
  margin: 0 auto;
}
.detail-back {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
}
.detail-back:hover { color: var(--accent); }
.detail h1.detail-title {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin: 12px 0 24px;
}
.detail-meta {
  display: flex;
  gap: 16px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-muted);
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
  letter-spacing: 0.06em;
}
.detail-content {
  font-size: 17px;
  line-height: 1.7;
  color: var(--fg);
}
.detail-content p { margin-bottom: 22px; }
.detail-content h2 {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 32px;
  font-weight: 400;
  margin: 40px 0 16px;
  letter-spacing: -0.01em;
}
.detail-content code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.9em;
  background: var(--bg-elev);
  padding: 2px 6px;
  border-radius: 2px;
}
.detail-content pre {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 20px 24px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  line-height: 1.6;
  overflow-x: auto;
  margin: 24px 0;
  color: var(--fg);
}
.detail-content pre .c { color: var(--fg-muted); }
.detail-content pre .k { color: var(--accent); }

/* ============ Footer (small) ============ */
.footer {
  border-top: 1px solid var(--line);
  padding: 40px 0 32px;
  margin-top: 80px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
  position: relative;
  z-index: 1;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
  align-items: end;
}
.footer-ascii {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--fg-faint);
  white-space: pre;
  line-height: 1.2;
}
.footer-meta { text-align: right; }
.footer-meta div { padding: 2px 0; }
.footer-meta span { color: var(--fg); }

@media (max-width: 960px) {
  .atlas-headline { left: 20px; top: 32px; }
  .atlas-hint { display: none; }
  .nav-center { display: none; }
  .cmd-trigger .label { display: none; }
  .cv-grid, .footer-inner { grid-template-columns: 1fr; }
  .grid-3, .grid-2, .teach-grid { grid-template-columns: 1fr; }
  .research-row, .blog-row, .talk-row { grid-template-columns: 1fr; gap: 8px; }
  .pkt-head, .pkt-row { grid-template-columns: 40px 60px 1fr; }
  .pkt-head > *:nth-child(n+4), .pkt-row > *:nth-child(n+4) { display: none; }
  .container { padding: 0 20px; }
}