/* ============================================================
   Design tokens
   Paper white, near-black ink, a brick "signal red" for
   annotation, muted graph-teal for live/status marks.
   Serif display (Source Serif 4) + Inter body + JetBrains Mono
   for labels/data, echoing the terminal/dev register.
   ============================================================ */
:root {
  --paper: #fafaf8;
  --paper-dim: #f2f1ec;
  --ink: #14141a;
  --ink-soft: #3a3a3f;
  --muted: #6b6b66;
  --line: #e4e2dc;
  --line-strong: #cfccc3;
  --signal: #b23a2e;
  --signal-soft: #f3e3e0;
  --graph: #0f6e56;
  --graph-soft: #e1f0ea;

  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;

  --col-max: 760px;
  --gutter: 56px;
}

[data-theme="dark"] {
  --paper: #0e0f12;
  --paper-dim: #16181d;
  --ink: #f0f1f5;
  --ink-soft: #a0a3b0;
  --muted: #787b8c;
  --line: #22252e;
  --line-strong: #383d4c;
  --signal: #ff5544;
  --signal-soft: #2e1816;
  --graph: #34d399;
  --graph-soft: #122920;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }

img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--col-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}

/* ---------- Graph-line signature ----------
   A single hairline runs down the left gutter of the whole
   page, drawn in as you scroll, with small node-dots marking
   each section — the page as one connected graph. */
.graph-rail {
  position: fixed;
  left: 18px;
  top: 0;
  bottom: 0;
  width: 24px;
  z-index: 5;
  pointer-events: none;
}
@media (max-width: 900px) { .graph-rail { display: none; } }

.graph-rail svg { width: 100%; height: 100%; }
.graph-rail .rail-line {
  stroke: var(--line-strong);
  stroke-width: 1;
  fill: none;
}
.graph-rail .rail-line-fill {
  stroke: var(--signal);
  stroke-width: 1.4;
  fill: none;
}
.graph-rail .rail-node {
  fill: var(--paper);
  stroke: var(--line-strong);
  stroke-width: 1.4;
  transition: stroke 0.4s ease, fill 0.4s ease;
}
.graph-rail .rail-node.active {
  fill: var(--signal);
  stroke: var(--signal);
}

/* ---------- Nav ---------- */
nav.site-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}
nav.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}
.nav-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}
.theme-toggle {
  background: var(--paper-dim);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 13px;
  cursor: pointer;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s ease, transform 0.15s ease;
  user-select: none;
  line-height: 1;
}
.theme-toggle:hover {
  border-color: var(--ink);
  transform: scale(1.05);
}
.theme-toggle:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}
.nav-mark {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  text-decoration: none;
}
.nav-links { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  font-family: var(--mono);
  font-size: 12.5px;
  text-decoration: none;
  color: var(--ink-soft);
  letter-spacing: 0.03em;
}
.nav-links a:hover { color: var(--signal); }

/* ---------- Hero ---------- */
header.hero {
  position: relative;
  padding: 108px 0 96px;
}
#hero-field {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  width: 100%;
  height: 100%;
}
header.hero .wrap {
  position: relative;
  z-index: 1;
}
.hero-eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--signal);
  letter-spacing: 0.06em;
  margin: 0 0 22px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--signal);
  display: inline-block;
}
h1.hero-name {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(48px, 9vw, 88px);
  line-height: 0.98;
  margin: 0 0 26px;
  letter-spacing: -0.01em;
  overflow: hidden;
}
h1.hero-name span,
h1.case-title span { display: block; transform: translateY(105%); }
.hero-role {
  font-size: 19px;
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 0 0 34px;
}
.hero-links { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.hero-links a {
  font-family: var(--mono);
  font-size: 13px;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  color: var(--ink);
}
.hero-links a:hover { border-color: var(--signal); color: var(--signal); }

/* ---------- Section scaffolding ---------- */
section { padding: 88px 0; border-top: 0.5px solid var(--line); }
.section-label {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  letter-spacing: 0.05em;
  margin: 0 0 16px;
}
h2.section-title {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 600;
  margin: 0 0 40px;
  letter-spacing: -0.01em;
}
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- About ---------- */
.about-body { max-width: 62ch; font-size: 17.5px; color: var(--ink-soft); }
.about-body p { margin: 0 0 18px; }

.skills-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 28px 32px;
}
.skill-group h3 {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--signal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 10px;
  font-weight: 500;
}
.skill-group p { margin: 0; font-size: 14.5px; color: var(--ink-soft); line-height: 1.65; }

/* ---------- Proof strip ---------- */
.proof-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 24px;
  margin-top: 44px;
  border-top: 0.5px solid var(--line);
  padding-top: 32px;
}
.proof-num { font-family: var(--serif); font-size: 30px; font-weight: 600; }
.proof-label { font-family: var(--mono); font-size: 11.5px; color: var(--muted); margin-top: 4px; }

/* ---------- Flagship work ---------- */
.work-list { display: flex; flex-direction: column; }
.work-item {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 24px;
  align-items: baseline;
  padding: 30px 0;
  border-top: 0.5px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: padding-left 0.35s ease;
}
.work-item:first-child { border-top: none; }
.work-item:hover { padding-left: 8px; }
.work-year { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }
.work-main h3 {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.work-node {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--line-strong);
  transition: background 0.3s ease, transform 0.3s ease;
  flex: none;
}
.work-item:hover .work-node { background: var(--graph); transform: scale(1.3); }
.work-main p { margin: 0; color: var(--ink-soft); font-size: 15px; max-width: 52ch; }
.work-tags { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; align-self: start; }
.tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  border: 0.5px solid var(--line-strong);
  border-radius: 20px;
  padding: 3px 10px;
  white-space: nowrap;
}
.work-arrow { font-size: 15px; color: var(--muted); align-self: center; }
.work-item:hover .work-arrow { color: var(--signal); }
@media (max-width: 640px) {
  .work-item { grid-template-columns: 1fr; gap: 8px; }
  .work-tags { justify-content: flex-start; }
}

/* ---------- Secondary projects ---------- */
.secondary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2px;
  background: var(--line);
  border: 0.5px solid var(--line);
}
.secondary-item { background: var(--paper); padding: 22px 20px; }
.secondary-item h4 {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 8px;
}
.secondary-item p { margin: 0; font-size: 13.5px; color: var(--muted); line-height: 1.55; }

/* ---------- Achievements ---------- */
.ach-list { list-style: none; margin: 0; padding: 0; }
.ach-list li {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
  border-top: 0.5px solid var(--line);
  font-size: 15px;
}
.ach-list li:first-child { border-top: none; }
.ach-list .ach-meta { font-family: var(--mono); font-size: 12.5px; color: var(--muted); white-space: nowrap; }

/* ---------- Contact / footer ---------- */
footer.contact {
  padding: 96px 0 64px;
}
footer.contact h2 {
  font-family: var(--serif);
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 600;
  margin: 0 0 30px;
  max-width: 16ch;
}
.contact-links { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-bottom: 60px; }
.contact-links a {
  font-family: var(--mono);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
}
.contact-links a:hover { color: var(--signal); border-color: var(--signal); }
.foot-note { font-family: var(--mono); font-size: 11.5px; color: var(--muted); }

/* ---------- Case study pages ---------- */
.case-hero { padding: 64px 0 56px; border-top: none; }
.case-back {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 40px;
}
.case-back:hover { color: var(--signal); }
.case-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
}
h1.case-title {
  font-family: var(--serif);
  font-size: clamp(38px, 7vw, 60px);
  font-weight: 600;
  line-height: 1.02;
  margin: 0;
  letter-spacing: -0.01em;
  overflow: hidden;
}
.case-dek { font-size: 18px; color: var(--ink-soft); max-width: 56ch; margin: 20px 0 0; }
.case-links { display: flex; gap: 20px; margin-top: 28px; }
.case-links a {
  font-family: var(--mono);
  font-size: 13px;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
}
.case-links a:hover { border-color: var(--signal); color: var(--signal); }

.case-section { padding: 56px 0; border-top: 0.5px solid var(--line); }
.case-section h2 { font-family: var(--serif); font-size: 24px; font-weight: 600; margin: 0 0 18px; }
.case-section p { color: var(--ink-soft); max-width: 62ch; margin: 0 0 16px; font-size: 16px; }
.case-section ul { padding-left: 20px; color: var(--ink-soft); max-width: 62ch; }
.case-section li { margin-bottom: 10px; font-size: 15.5px; }

.case-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 24px;
}
.case-stat .proof-num { font-size: 24px; }

/* ---------- ⌘K Command Palette ---------- */
body.cmdk-open {
  overflow: hidden;
}

.cmdk-trigger {
  background: var(--paper-dim);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 3px 8px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: border-color 0.2s ease, color 0.2s ease;
  margin-left: 16px;
}
.cmdk-trigger:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}
.cmdk-trigger:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.cmdk-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 20, 26, 0.45);
  backdrop-filter: blur(3px);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 14vh;
}
.cmdk-overlay[hidden] {
  display: none;
}

.cmdk-panel {
  background: var(--paper);
  border: 1px solid var(--line-strong);
  width: 100%;
  max-width: 520px;
  border-radius: 6px;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.15);
  overflow: hidden;
  margin: 0 16px;
  display: flex;
  flex-direction: column;
}

.cmdk-header {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  gap: 10px;
}

.cmdk-search-icon {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--muted);
}

.cmdk-input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink);
  outline: none;
}
.cmdk-input::placeholder {
  color: var(--muted);
}

.cmdk-shortcut-hint {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--muted);
  background: var(--paper-dim);
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 3px;
}

.cmdk-list {
  list-style: none;
  margin: 0;
  padding: 6px 0;
  max-height: 300px;
  overflow-y: auto;
}

.cmdk-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink-soft);
  cursor: pointer;
  border-left: 2.5px solid transparent;
  transition: background 0.15s ease;
}
.cmdk-item.selected,
.cmdk-item:hover {
  background: var(--paper-dim);
  color: var(--ink);
  border-left-color: var(--signal);
}

.cmdk-item-title {
  font-weight: 500;
}

.cmdk-item-cat {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}

.cmdk-empty {
  padding: 20px 16px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

.cmdk-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  padding: 8px 16px;
  background: var(--paper-dim);
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}
.cmdk-footer kbd {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1px 4px;
  border-radius: 3px;
  font-size: 10px;
}

/* ---------- Interactive Graph Demo ---------- */
.graph-demo-caption {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  margin: 4px 0 20px;
}

.graph-demo-container {
  width: 100%;
  height: 520px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--paper-dim);
  overflow: hidden;
  position: relative;
  touch-action: none;
  user-select: none;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.03);
}

.graph-demo-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.graph-edge {
  stroke: var(--line-strong);
  stroke-width: 1.5;
  transition: stroke 0.2s ease, stroke-width 0.2s ease, opacity 0.2s ease;
  opacity: 0.65;
}
.graph-edge.highlighted {
  stroke: var(--signal);
  stroke-width: 2.2;
  opacity: 1;
}
.graph-edge.dimmed {
  opacity: 0.18;
}

.graph-node {
  cursor: grab;
  outline: none;
}
.graph-node:active,
.graph-node.dragging {
  cursor: grabbing;
}

.node-circle {
  fill: var(--paper);
  stroke: var(--ink);
  stroke-width: 2;
  transition: fill 0.2s ease, stroke 0.2s ease;
}
.graph-node:hover .node-circle,
.graph-node.dragging .node-circle {
  stroke: var(--signal);
  fill: var(--signal-soft);
}
.graph-node.type-risk .node-circle,
.graph-node.type-gap .node-circle {
  stroke: var(--signal);
}
.graph-node.type-feature .node-circle,
.graph-node.type-mission .node-circle {
  stroke: var(--graph);
}

.node-label {
  font-family: var(--mono);
  font-size: 11px;
  fill: var(--ink);
  text-anchor: middle;
  pointer-events: none;
  font-weight: 500;
}

.eventbus-status {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--signal);
  margin-top: 14px;
  letter-spacing: 0.02em;
}

/* ---------- Recruiter / Engineer Content Toggle ---------- */
body[data-active-mode="recruiter"] [data-mode="engineer"] {
  display: none !important;
}
body[data-active-mode="engineer"] [data-mode="recruiter"] {
  display: none !important;
}

.mode-toggle-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
}

.mode-toggle-label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.mode-toggle {
  background: var(--paper-dim);
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  padding: 3px;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s ease;
}
.mode-toggle:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.mode-opt {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  padding: 3px 10px;
  border-radius: 14px;
  transition: all 0.2s ease;
  user-select: none;
}
.mode-opt.active {
  background: var(--signal);
  color: var(--paper);
  font-weight: 500;
}

/* ---------- Robot Mascot Widget ---------- */
.robot-widget {
  position: fixed;
  bottom: 0;
  right: 0;
  width: 220px;
  height: 220px;
  z-index: 20;
  pointer-events: none;
  user-select: none;
  transition: opacity 0.15s ease;
  overflow: visible;
}
@media (max-width: 600px) {
  .robot-widget {
    width: 160px;
    height: 160px;
    bottom: 0;
    right: 0;
  }
}

/* ---------- Interactive Stack Keyboard ---------- */
.laptop-deck {
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--paper-dim);
  padding: 24px;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.03);
}

.kb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(84px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.kb-key {
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 14px 8px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  position: relative;
  box-shadow: 0 3px 0 var(--line-strong);
  transition: transform 0.08s ease, box-shadow 0.08s ease, border-color 0.15s ease;
  user-select: none;
  outline: none;
}
.kb-key:hover {
  border-color: var(--ink);
}
.kb-key:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}
.kb-key:active,
.kb-key.pressed {
  transform: translateY(3px);
  box-shadow: 0 0 0 var(--line-strong);
  border-color: var(--signal);
}

.kb-icon {
  width: 24px;
  height: 24px;
  color: var(--ink);
  transition: color 0.15s ease;
}
.kb-key.pressed .kb-icon {
  color: var(--signal);
}

.kb-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink);
  font-weight: 500;
  letter-spacing: 0.04em;
}

.kb-badge {
  position: absolute;
  top: 4px;
  right: 6px;
  font-family: var(--mono);
  font-size: 9px;
  color: var(--muted);
  background: var(--paper-dim);
  border: 1px solid var(--line);
  padding: 0 4px;
  border-radius: 3px;
}

.kb-output {
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 12px 16px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink);
  min-height: 94px;
  max-height: 94px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.kb-output-line {
  line-height: 1.4;
  white-space: pre-wrap;
}
.kb-output-line.new {
  color: var(--signal);
}
.kb-output-line-default {
  color: var(--muted);
}

/* ---------- Workspace Status Panel ---------- */
.ws-panel-wrap {
  position: fixed;
  bottom: 24px;
  left: 48px;
  z-index: 25;
}
@media (max-width: 900px) {
  .ws-panel-wrap {
    left: 16px;
    bottom: 16px;
  }
}

.ws-panel-pill {
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  padding: 5px 12px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: border-color 0.15s ease;
  outline: none;
}
.ws-panel-pill:hover {
  border-color: var(--ink);
}
.ws-panel-pill:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.ws-pill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--graph);
}

.ws-panel-card {
  position: absolute;
  bottom: 38px;
  left: 0;
  width: 270px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 14px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
  margin-bottom: 8px;
}
.ws-panel-card[hidden] {
  display: none;
}

.ws-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--muted);
  margin-bottom: 8px;
}

.ws-card-health {
  color: var(--graph);
  font-weight: 500;
}

.ws-health-bar {
  width: 100%;
  height: 4px;
  background: var(--paper-dim);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 12px;
}
.ws-health-fill {
  height: 100%;
  background: var(--graph);
  transition: width 0.3s ease;
}

.ws-node-list {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.ws-node-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 11px;
}

.ws-node-left {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
}

.ws-node-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line-strong);
}
.ws-node-dot.visited {
  background: var(--graph);
}

.ws-node-tag {
  font-size: 9.5px;
  color: var(--muted);
}

.ws-mission-box {
  background: var(--paper-dim);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 8px 10px;
}

.ws-mission-text {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.4;
}

.ws-mission-link {
  color: var(--signal);
  text-decoration: underline;
}

/* ---------- Robot Co-Pilot HUD Overlay ---------- */
.robot-hud-card {
  position: fixed;
  bottom: 110px;
  right: 24px;
  width: 320px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 16px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.16);
  z-index: 30;
  font-family: var(--mono);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.robot-hud-card[hidden] {
  display: none;
}

@media (max-width: 600px) {
  .robot-hud-card {
    right: 12px;
    bottom: 80px;
    width: calc(100vw - 24px);
  }
}

.hud-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}

.hud-title-group {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--ink);
}

.hud-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--graph);
  box-shadow: 0 0 6px var(--graph);
}

.hud-close-btn {
  background: none;
  border: none;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}
.hud-close-btn:hover {
  color: var(--signal);
  background: var(--paper-dim);
}

.hud-section-label {
  font-size: 9.5px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.hud-brief-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 11px;
  color: var(--ink-soft);
  line-height: 1.4;
}

.hud-brief-item {
  position: relative;
  padding-left: 12px;
}
.hud-brief-item::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--signal);
}

.hud-actions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.hud-action-btn {
  background: var(--paper-dim);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  text-decoration: none;
  transition: border-color 0.15s ease, background-color 0.15s ease;
  user-select: none;
}
.hud-action-btn:hover {
  border-color: var(--ink);
  background: var(--paper);
}
.hud-action-btn:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.hud-toast {
  font-size: 10px;
  color: var(--graph);
  text-align: center;
  height: 14px;
  transition: opacity 0.2s ease;
}

/* ---------- Cyberpunk Matrix Mode Theme ---------- */
body.matrix-mode {
  --ink: #00ff66 !important;
  --ink-soft: #00dd55 !important;
  --paper: #060e08 !important;
  --paper-dim: #0b180e !important;
  --signal: #00ff66 !important;
  --graph: #00ff66 !important;
  --line-strong: #00aa44 !important;
  --line: #006622 !important;
}

/* Easter Egg Toast */
.easter-toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: var(--paper);
  border: 1px solid var(--signal);
  border-radius: 20px;
  padding: 8px 18px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--signal);
  z-index: 1000;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.easter-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- Interactive Git PR Diff Modal ---------- */
.pr-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.pr-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.pr-modal-card {
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  width: 100%;
  max-width: 680px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
  overflow: hidden;
  font-family: var(--mono);
}

.pr-modal-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--paper-dim);
}

.pr-modal-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pr-badge-merged {
  background: rgba(137, 87, 229, 0.15);
  color: #a371f7;
  border: 1px solid rgba(137, 87, 229, 0.4);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 10.5px;
}

.pr-diff-body {
  padding: 16px;
  overflow-y: auto;
  font-size: 12px;
  line-height: 1.5;
  background: var(--paper);
}

.pr-diff-line {
  white-space: pre-wrap;
  display: flex;
  font-family: var(--mono);
}
.pr-diff-line.add {
  background: rgba(46, 160, 67, 0.15);
  color: #3fb950;
}
.pr-diff-line.del {
  background: rgba(248, 81, 73, 0.15);
  color: #f85149;
}
.pr-diff-line.header {
  color: var(--muted);
  font-style: italic;
  padding: 4px 0;
}

.pr-modal-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--paper-dim);
}

/* ---------- Gravity Restore Button ---------- */
.gravity-restore-btn {
  position: fixed;
  top: 24px;
  right: 24px;
  background: var(--paper);
  border: 1px solid var(--signal);
  border-radius: 20px;
  padding: 8px 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--signal);
  cursor: pointer;
  z-index: 1000;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  display: none;
  transition: transform 0.15s ease;
}
.gravity-restore-btn:hover {
  transform: scale(1.05);
}

/* ---------- Lenis Smooth Scroll Overrides ---------- */
html.lenis, html.lenis body {
  height: auto;
}
.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}
.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}
.lenis.lenis-stopped {
  overflow: hidden;
}
.lenis.lenis-scrolling iframe {
  pointer-events: none;
}

/* ---------- Mobile & Tablet Responsive Enhancements ---------- */

/* Root & Body Safety */
html, body {
  overflow-x: hidden;
  max-width: 100vw;
  -webkit-tap-highlight-color: transparent;
}

/* Touch Action Optimization */
button, a, .theme-toggle, .mode-toggle, .cmdk-trigger, .kb-key, .ws-panel-pill {
  touch-action: manipulation;
}

@media (max-width: 768px) {
  .wrap {
    padding-left: 20px;
    padding-right: 20px;
  }

  nav.site-nav .wrap {
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .nav-controls {
    gap: 6px;
  }

  .theme-toggle {
    min-height: 34px;
    padding: 4px 8px;
  }

  .mode-toggle {
    min-height: 34px;
  }

  .mode-opt {
    font-size: 10.5px;
    padding: 3px 7px;
  }

  header.hero {
    padding: 48px 0 36px;
  }

  .hero-eyebrow {
    font-size: 11px;
    margin-bottom: 14px;
  }

  h1.hero-name {
    font-size: clamp(34px, 10.5vw, 54px);
    margin-bottom: 16px;
  }

  .hero-role {
    font-size: 15.5px;
    line-height: 1.5;
    margin-bottom: 24px;
  }

  .hero-links {
    flex-wrap: wrap;
    gap: 12px;
  }

  .work-list {
    margin-top: 20px;
  }

  .work-item {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 18px 0;
  }

  .work-tags {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .laptop-deck {
    padding: 14px;
  }

  .kb-grid {
    grid-template-columns: repeat(auto-fit, minmax(62px, 1fr));
    gap: 6px;
  }

  .kb-key {
    padding: 8px 3px 6px;
    min-height: 48px;
  }

  .kb-icon {
    width: 15px;
    height: 15px;
  }

  .kb-label {
    font-size: 9.5px;
  }

  .kb-badge {
    font-size: 8px;
    top: 3px;
    right: 3px;
  }

  .kb-output {
    font-size: 10.5px;
    padding: 8px 10px;
  }

  .ach-list li {
    flex-direction: column;
    gap: 4px;
    padding: 12px 0;
  }

  .ach-meta {
    font-size: 12px;
  }

  footer.contact {
    padding: 48px 0 72px;
  }

  footer.contact h2 {
    font-size: clamp(24px, 6.5vw, 36px);
  }

  .contact-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .ws-panel-wrap {
    left: 12px;
    bottom: 12px;
  }

  .ws-panel-card {
    left: 0;
    width: calc(100vw - 24px);
    max-width: 310px;
    bottom: 40px;
  }

  .pr-modal-card {
    width: calc(100vw - 20px);
    max-height: 85vh;
    padding: 14px;
  }

  .pr-diff-body {
    overflow-x: auto;
    font-size: 11px;
  }

  header.case-hero {
    padding: 42px 0 28px;
  }

  h1.case-title {
    font-size: clamp(30px, 8vw, 48px);
  }

  .case-meta-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
}

@media (max-width: 420px) {
  .nav-mark {
    font-size: 11px;
  }

  .cmdk-trigger {
    padding: 3px 5px;
  }

  .cmdk-label {
    display: none;
  }

  .kb-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .mode-toggle-wrap {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

/* ---------- LifeLine Ultra-Visual Concurrency Pipeline ---------- */
.pipeline-stage-card {
  background: var(--paper-dim);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  padding: 24px;
  margin-top: 18px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .pipeline-stage-card {
  background: rgba(14, 15, 18, 0.95);
  border-color: rgba(255, 85, 68, 0.2);
}

.pipeline-telemetry-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.telemetry-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 4px 10px;
  border-radius: 6px;
}

.telemetry-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
  animation: pulseDot 1.5s infinite alternate;
}

@keyframes pulseDot {
  0% { opacity: 0.4; transform: scale(0.85); }
  100% { opacity: 1; transform: scale(1.15); }
}

.telemetry-label {
  color: var(--ink-soft);
  font-size: 10px;
}

.telemetry-val {
  color: var(--ink);
  font-weight: 600;
}

.pipeline-svg-wrap {
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}

[data-theme="dark"] .pipeline-svg-wrap {
  background: #0a0b0e;
  border-color: rgba(255, 255, 255, 0.08);
}

.pipeline-svg {
  width: 100%;
  height: auto;
  display: block;
}

.pipeline-action-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.sandbox-btn {
  background: var(--signal);
  color: #ffffff;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(255, 85, 68, 0.28);
  transition: transform 0.15s ease, opacity 0.15s ease, filter 0.15s ease;
}

.sandbox-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.1);
}

.sandbox-btn-sec {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line-strong);
  box-shadow: none;
}

.sandbox-btn-sec:hover {
  color: var(--ink);
  background: var(--paper);
}

.log-terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #14161d;
  padding: 8px 14px;
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
  border: 1px solid #1f2937;
  border-bottom: none;
}

.terminal-dots {
  display: flex;
  gap: 5px;
}

.terminal-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}

.terminal-dots span:nth-child(1) { background: #ef4444; }
.terminal-dots span:nth-child(2) { background: #f59e0b; }
.terminal-dots span:nth-child(3) { background: #10b981; }

.terminal-title {
  font-family: var(--mono);
  font-size: 11px;
  color: #9ca3af;
  letter-spacing: 0.03em;
}

.log-terminal {
  background: #090a0d;
  color: #d1d5db;
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 14px 16px;
  border-bottom-left-radius: 8px;
  border-bottom-right-radius: 8px;
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid #1f2937;
  line-height: 1.65;
}

.log-line { margin-bottom: 4px; word-break: break-all; }
.log-info { color: #9ca3af; }
.log-success { color: #34d399; }
.log-conflict { color: #f87171; }
.log-highlight { color: #fbbf24; font-weight: 600; }
.json-code { color: #e5e7eb; }

.pipeline-svg text {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  user-select: none;
}

.pipeline-svg text.mono-text {
  font-family: "Geist Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
}

/* ---------- Open Source Contributions (OSS) Section ---------- */
.oss-metric-ribbon {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 24px 0 20px;
}

.oss-metric-card {
  background: var(--paper-dim);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.oss-metric-card:hover {
  transform: translateY(-2px);
  border-color: var(--signal);
}

.oss-metric-num {
  font-family: var(--serif);
  font-size: clamp(20px, 3.5vw, 28px);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.1;
}

.oss-metric-label {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

.oss-filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.oss-filter-btn {
  background: var(--paper-dim);
  color: var(--ink-soft);
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.oss-filter-btn:hover {
  color: var(--ink);
  border-color: var(--line-strong);
}

.oss-filter-btn.active {
  background: var(--paper);
  color: var(--signal);
  border-color: var(--signal);
  box-shadow: 0 2px 8px rgba(255, 85, 68, 0.15);
  font-weight: 600;
}

.oss-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.oss-card {
  background: var(--paper-dim);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.oss-card:hover {
  transform: translateY(-2px);
  border-color: var(--ink-soft);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
}

.oss-card-featured {
  border-color: rgba(255, 85, 68, 0.4);
  background: linear-gradient(180deg, var(--paper-dim) 0%, rgba(255, 85, 68, 0.03) 100%);
}

.oss-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.oss-repo-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.oss-org-icon {
  font-size: 14px;
}

.oss-repo-name {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}

.oss-star-pill {
  font-family: var(--mono);
  font-size: 11px;
  background: var(--paper);
  border: 1px solid var(--line);
  color: #f59e0b;
  padding: 2px 7px;
  border-radius: 12px;
  font-weight: 600;
}

.oss-status-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.oss-status-pill {
  font-family: var(--mono);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
}

.oss-badge-merged {
  color: #10b981;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.oss-badge-review {
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.oss-badge-closed {
  color: #9ca3af;
  background: rgba(156, 163, 175, 0.1);
  border: 1px solid rgba(156, 163, 175, 0.3);
}

.oss-pr-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.15s ease;
}

.oss-pr-num:hover {
  color: var(--signal);
}

.oss-card-title {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin: 0;
}

.oss-ai-box {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.oss-ai-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--signal);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.ai-sparkle {
  color: var(--signal);
  font-size: 11px;
}

.oss-ai-text {
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
  margin: 0;
}

.oss-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 4px;
}

.oss-tags {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.oss-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.oss-diff-btn {
  background: var(--paper);
  color: var(--signal);
  border: 1px solid var(--line-strong);
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.oss-diff-btn:hover {
  background: var(--signal);
  color: #ffffff;
  border-color: var(--signal);
}

.oss-gh-btn {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 5px 10px;
  border-radius: 6px;
  border: 1px solid var(--line);
  transition: all 0.15s ease;
}

.oss-gh-btn:hover {
  color: var(--ink);
  border-color: var(--line-strong);
  background: var(--paper);
}

@media (max-width: 768px) {
  .oss-metric-ribbon {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .oss-metric-ribbon {
    grid-template-columns: 1fr 1fr;
  }
  .oss-card-header {
    flex-direction: column;
    align-items: flex-start;
  }
.oss-empty-state {
  background: var(--paper-dim);
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  padding: 40px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
}

.oss-empty-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 4px;
}

.oss-empty-title {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
}

.oss-empty-sub {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-soft);
  max-width: 420px;
  margin: 0;
  line-height: 1.5;
}