:root {
  color-scheme: light;
  --bg: #fcfcfd;
  --bg-soft: #f4f5f7;
  --surface: #ffffff;
  --border: #e4e7ec;
  --text: #101828;
  --text-muted: #667085;
  --accent: #175cd3;
  --accent-soft: #eaf2ff;
  --chart-teal: #0f766e;
  --chart-violet: #6d28d9;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius: 12px;
  --container: 1305px;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0d10;
  --bg-soft: #12161c;
  --surface: #11151a;
  --border: #232a33;
  --text: #e7e9ec;
  --text-muted: #98a2b3;
  --accent: #7ab0ff;
  --accent-soft: #16233a;
  --chart-teal: #5eead4;
  --chart-violet: #c4b5fd;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}

img,
svg {
  display: block;
}

a {
  color: inherit;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
p {
  margin: 0;
}

::selection {
  background: color-mix(in srgb, var(--accent) 25%, transparent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--text);
  color: var(--bg);
  padding: 0.6rem 1rem;
  border-radius: 0 0 8px 0;
  text-decoration: none;
  font-size: 0.85rem;
}

.skip-link:focus {
  left: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 60px;
}

.brand {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.brand-dot {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.1rem;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-links a[aria-current="true"] {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 6px;
}

.nav-toggle {
  display: none;
  align-items: center;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 10px;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
}

.theme-toggle:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
}

.icon-sun {
  display: none;
}

[data-theme="dark"] .icon-sun {
  display: block;
}

[data-theme="dark"] .icon-moon {
  display: none;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.58rem 1.05rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.btn:hover {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.btn-primary:hover {
  opacity: 0.88;
  border-color: var(--text);
}

.hero {
  padding-block: clamp(3rem, 8vw, 5.5rem) 3.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr);
  gap: 2.5rem;
  align-items: start;
}

.avatar {
  width: 168px;
  height: 168px;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

h1 {
  font-size: clamp(2.4rem, 7vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.9rem;
}

.lede {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 56ch;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.75rem;
}

.hero-facts {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-top: 2rem;
}

.section {
  padding-top: 4.5rem;
}

.section h2 {
  font-size: clamp(1.5rem, 2.6vw, 1.9rem);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 1.5rem;
}

.section-intro {
  color: var(--text-muted);
  max-width: 62ch;
  margin: -0.75rem 0 1.75rem;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.section-head h2 {
  margin-bottom: 0;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 2.5rem;
}

.about-copy p + p {
  margin-top: 1rem;
}

.about-copy {
  color: var(--text);
  max-width: 62ch;
}

.facts {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.25rem 1.35rem;
  height: fit-content;
}

.facts dl {
  margin: 0;
}

.facts dt {
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.15rem;
}

.facts dd {
  margin: 0 0 0.9rem;
  font-size: 0.9rem;
}

.facts dd:last-child {
  margin-bottom: 0;
}

.view-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
  background: var(--bg-soft);
}

.view-toggle button {
  border: 0;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
}

.view-toggle button[aria-pressed="true"] {
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.exp-toggle-float {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 40;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.exp-toggle-float.is-visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.exp-toggle-float .view-toggle {
  background: var(--surface);
  padding: 4px;
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.22), 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent);
}

.exp-toggle-float .view-toggle button {
  font-size: 0.85rem;
  padding: 0.45rem 1.05rem;
}

.exp-toggle-float .view-toggle button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--bg);
  box-shadow: none;
}

.back-top {
  position: fixed;
  left: 1.5rem;
  bottom: 1.5rem;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 1rem;
  text-decoration: none;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.16);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.back-top.is-visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.back-top:hover {
  color: var(--text);
}

#experience[data-view="condensed"] .only-detailed {
  display: none;
}

#experience[data-view="detailed"] .only-condensed {
  display: none;
}

#experience[data-view="compact"] .only-condensed,
#experience[data-view="compact"] .only-detailed,
#experience[data-view="compact"] .job-points,
#experience[data-view="compact"] .role-line,
#experience[data-view="compact"] .subjob-note {
  display: none;
}

.timeline {
  list-style: none;
  display: grid;
  gap: 2.75rem;
  padding-left: 1.4rem;
  border-left: 1px solid var(--border);
}

.timeline > .job {
  position: relative;
}

.timeline > .job::before {
  content: "";
  position: absolute;
  left: -1.4rem;
  top: 0.55rem;
  width: 9px;
  height: 9px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.job-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  flex-wrap: wrap;
}

.job-head h3 {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.job-sub {
  color: var(--text-muted);
  font-weight: 500;
}

.job-dates {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.job-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0.2rem 0 0.6rem;
}

.job-points {
  list-style: none;
  display: grid;
  gap: 0.4rem;
}

.job-points li {
  position: relative;
  padding-left: 1.05rem;
  font-size: 0.92rem;
}

.job-points li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--text-muted);
}

.role-line {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
}

.job-dates-inline {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 0.5rem;
}

.subjob {
  margin-top: 1.25rem;
  padding-left: 1rem;
  border-left: 2px solid var(--border);
}

.subjob-note {
  margin-top: 1.25rem;
  padding-left: 1rem;
  border-left: 2px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.proj-meta {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.group-heading {
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.toolkit {
  display: grid;
}

.toolkit-row {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 0.5rem 2rem;
  align-items: baseline;
  padding: 0.7rem 0;
  border-top: 1px solid var(--border);
}

.toolkit-row h3,
.toolkit-row h4 {
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 600;
  margin: 0;
}

.toolkit-row p {
  font-size: 0.9rem;
  line-height: 1.55;
}

.toolkit-head {
  display: grid;
  gap: 0.5rem 2rem;
  padding-bottom: 0.3rem;
}

.toolkit-head span {
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 600;
}

.toolkit-cap .toolkit-head,
.toolkit-cap .toolkit-row {
  grid-template-columns: 280px minmax(0, 1.3fr) minmax(0, 1fr) minmax(0, 1fr);
}

.toolkit + .group-heading {
  margin-top: 2.5rem;
}

.contact-copy {
  color: var(--text-muted);
  max-width: 60ch;
}

.contact-email {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: clamp(1.3rem, 3.5vw, 1.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}

.contact-email:hover {
  color: var(--accent);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.75rem;
}

.site-footer {
  margin-top: 5rem;
  border-top: 1px solid var(--border);
  padding: 1.75rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--text-muted);
}

@media (max-width: 780px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .avatar {
    width: 120px;
    height: 120px;
  }

  .toolkit-row,
  .toolkit-cap .toolkit-row {
    grid-template-columns: 1fr;
    gap: 0.2rem 0;
  }

  .toolkit-head {
    display: none;
  }

  .chart-hint {
    display: block;
  }
}

.career-chart {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.25rem 1.25rem 0.75rem;
  margin-bottom: 2.75rem;
  overflow-x: auto;
}

.career-chart svg {
  width: 100%;
  height: auto;
  min-width: 780px;
  display: block;
}

.chart-grid {
  stroke: var(--border);
  stroke-width: 1;
}

.chart-axis {
  stroke: var(--border);
  stroke-width: 1;
}

.chart-tick {
  font-family: var(--mono);
  font-size: 10px;
  fill: var(--text-muted);
}

.chart-rail {
  stroke: var(--border);
  stroke-width: 1;
}

.chart-seg {
  stroke: var(--surface);
  stroke-width: 1;
}

.seg-saf {
  fill: var(--accent);
}

.seg-antina {
  fill: var(--chart-teal);
}

.seg-murata {
  fill: var(--chart-violet);
}

.chart-seg-label {
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 600;
  fill: var(--bg);
}

.chart-role-name {
  font-family: var(--mono);
  font-size: 8px;
  fill: var(--bg);
}

.chart-role-name-sm {
  font-family: var(--mono);
  font-size: 6.5px;
  fill: var(--bg);
}

.chart-sep {
  stroke: var(--surface);
  stroke-width: 1.5;
}

.chart-study {
  fill: var(--bg-soft);
  stroke: var(--border);
  stroke-width: 1;
}

.chart-study-label {
  font-family: var(--sans);
  font-size: 9px;
  font-weight: 600;
  fill: var(--text);
}

.chart-rowcap {
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.12em;
  fill: var(--text-muted);
}

.chart-dot {
  fill: var(--accent);
  stroke: var(--surface);
  stroke-width: 1.5;
}

.chart-edu-dot {
  fill: var(--accent);
  stroke: var(--surface);
  stroke-width: 1.5;
}

.chart-cert-dot {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.5;
}

.chart-stem {
  stroke: var(--border);
  stroke-width: 1;
}

.chart-dot-label {
  font-family: var(--mono);
  font-size: 9px;
  fill: var(--text-muted);
}

.chart-today {
  stroke: var(--text-muted);
  stroke-width: 1;
  stroke-dasharray: 3 4;
}

.chart-today-label {
  font-family: var(--mono);
  font-size: 9px;
  fill: var(--text-muted);
}

.chart-caption {
  margin: 0.5rem 0 0.75rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}

.chart-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.chart-hint {
  display: none;
  margin: 0.75rem 0 0;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}

.chart-tip {
  position: fixed;
  z-index: 70;
  max-width: 280px;
  padding: 0.45rem 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.45;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  pointer-events: none;
}

.chart-head .group-heading {
  margin-bottom: 0;
}

.legend-btn {
  padding: 0.3rem 0.85rem;
  font-size: 0.8rem;
}

.legend-modal {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  padding: 0;
  width: min(440px, calc(100vw - 2rem));
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.2);
}

.legend-modal::backdrop {
  background: rgba(10, 13, 18, 0.55);
}

.legend-content {
  padding: 1.25rem 1.5rem 1.5rem;
}

.legend-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.legend-head h3 {
  font-size: 1rem;
}

.legend-close {
  border: 0;
  background: transparent;
  color: var(--text-muted);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 0.3rem;
  border-radius: 6px;
}

.legend-close:hover {
  color: var(--text);
}

.legend-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.legend-list li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 0.75rem;
  align-items: start;
  font-size: 0.85rem;
  line-height: 1.5;
}

.legend-swatch {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 20px;
}

.legend-name {
  font-weight: 600;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.legend-ring {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--accent);
}

.legend-diamond {
  width: 10px;
  height: 10px;
  background: var(--accent);
  transform: rotate(45deg);
}

.legend-study {
  width: 32px;
  height: 12px;
  border-radius: 4px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
}

.legend-workb {
  display: flex;
  width: 36px;
  height: 12px;
  border-radius: 4px;
  overflow: hidden;
}

.legend-workb span {
  flex: 1;
}

.lw-saf {
  background: var(--accent);
}

.lw-ant {
  background: var(--chart-teal);
}

.lw-mur {
  background: var(--chart-violet);
}

.legend-rolediv {
  display: flex;
  width: 36px;
  height: 12px;
  border-radius: 4px;
  background: var(--accent);
}

.legend-rolediv::after {
  content: "";
  width: 2px;
  margin-left: 62%;
  background: var(--surface);
}

.legend-today {
  height: 18px;
  border-left: 2px dashed var(--text-muted);
}

.legend-note {
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

@media (max-width: 640px) {
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
    margin-right: 0.5rem;
  }

  .nav-links {
    display: none;
  }

  .nav-links.is-open {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 0.6rem 1.25rem 0.9rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  }

  .nav-links.is-open a {
    padding: 0.45rem 0;
    font-size: 0.95rem;
  }

  .exp-toggle-float {
    left: 50%;
    right: auto;
    transform: translateX(-50%) translateY(10px);
  }

  .exp-toggle-float.is-visible {
    transform: translateX(-50%);
  }

  .back-top {
    left: 1rem;
    bottom: 1rem;
  }

  .timeline {
    padding-left: 1.1rem;
  }

  .timeline > .job::before {
    left: -1.1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}

@media print {
  .site-header,
  .hero-actions,
  .view-toggle,
  .contact-links,
  .site-footer,
  .exp-toggle-float,
  .back-top,
  .chart-hint,
  .legend-btn,
  .legend-modal,
  .career-chart,
  .chart-head {
    display: none;
  }

  body {
    background: #ffffff;
    color: #000000;
  }

  #experience .only-condensed {
    display: none !important;
  }

  #experience .only-detailed,
  #experience .role-line,
  #experience .subjob-note {
    display: block !important;
  }

  #experience .job-points {
    display: grid !important;
  }
}