@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/IBMPlexSans-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/IBMPlexSans-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/IBMPlexSans-Bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/fonts/IBMPlexMono-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/fonts/IBMPlexMono-Medium.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

:root {
  --bg: #F6F8F9;
  --ink: #16232F;
  --muted: #4E6172;
  --line: #DAE2E8;
  --track: #C3CFD8;
  --accent: #9C6210;
  --accent-bright: #DE9A32;
  --sans: "IBM Plex Sans", "Segoe UI", Arial, sans-serif;
  --mono: "IBM Plex Mono", Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0D141C;
    --ink: #E6ECF2;
    --muted: #98A9B9;
    --line: #243240;
    --track: #324351;
    --accent: #EFAF4E;
    --accent-bright: #E8A13D;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent-bright);
  color: #10161C;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--bg);
  padding: 0.5rem 1rem;
  z-index: 10;
}

.skip:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.wrap {
  max-width: 46rem;
  margin-inline: auto;
  padding-inline: 1.4rem;
}

.hero {
  padding-top: 5.5rem;
  padding-bottom: 1rem;
}

.readout {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.6rem;
}

h1 {
  font-size: clamp(2.3rem, 6vw, 3.3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.08;
}

.role {
  font-family: var(--mono);
  font-size: 1.02rem;
  font-weight: 500;
  color: var(--accent);
  margin-top: 0.5rem;
}

.thesis {
  font-size: 1.14rem;
  line-height: 1.6;
  color: var(--muted);
  max-width: 36em;
  margin-top: 1.2rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.8rem;
}

.btn {
  display: inline-block;
  font-weight: 600;
  font-size: 0.93rem;
  text-decoration: none;
  padding: 0.62rem 1.05rem;
  border-radius: 6px;
  background: var(--ink);
  color: var(--bg);
  border: 1px solid var(--ink);
}

.btn:hover {
  background: var(--accent-bright);
  border-color: var(--accent-bright);
  color: #10161C;
}

.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-weight: 400;
}

.btn.ghost:hover {
  border-color: var(--accent-bright);
  background: transparent;
  color: var(--ink);
}

main section {
  padding-top: 3.2rem;
}

main section:last-child {
  padding-bottom: 1rem;
}

h2 {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

h2::before {
  content: "";
  width: 0.42rem;
  height: 0.42rem;
  border: 1.5px solid var(--accent-bright);
  transform: rotate(45deg);
  flex-shrink: 0;
}

h2::after {
  content: "";
  height: 1px;
  background: var(--line);
  flex-grow: 1;
}

h3 {
  font-size: 1.06rem;
  font-weight: 600;
  line-height: 1.35;
}

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

.period {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--muted);
  white-space: nowrap;
}

.org {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 0.15rem;
}

.orgdesc {
  font-size: 0.88rem;
  color: var(--muted);
  font-style: italic;
  margin-top: 0.1rem;
}

.track {
  list-style: none;
}

.track > li {
  position: relative;
  padding-left: 2rem;
  padding-bottom: 2.4rem;
}

.track > li:last-child {
  padding-bottom: 0;
}

.track > li:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 0.36rem;
  top: 1.15rem;
  bottom: -0.35rem;
  width: 1.5px;
  background: var(--track);
}

.track > li::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42rem;
  width: 0.52rem;
  height: 0.52rem;
  border: 1.5px solid var(--accent-bright);
  background: var(--bg);
  transform: rotate(45deg);
}

.track > li.current::after {
  background: var(--accent-bright);
}

.track ul,
article ul {
  list-style: none;
  margin-top: 0.7rem;
}

.track ul li {
  position: relative;
  padding-left: 1.15rem;
  margin-bottom: 0.35rem;
  font-size: 0.96rem;
}

.track ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 0.32rem;
  height: 1.5px;
  background: var(--accent-bright);
}

.edu {
  margin-bottom: 1.4rem;
}

.edu:last-child {
  margin-bottom: 0;
}

.skills {
  display: grid;
  grid-template-columns: 12.5rem 1fr;
  row-gap: 0.85rem;
  column-gap: 1.5rem;
}

.skills dt {
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 0.2rem;
}

.skills dd {
  font-size: 0.97rem;
}

.langs {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 2.2rem;
}

.langs li {
  font-weight: 600;
  font-size: 0.98rem;
}

.level {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 0.82rem;
  color: var(--muted);
  margin-left: 0.35rem;
}

.proj {
  margin-bottom: 1.5rem;
}

.proj:last-child {
  margin-bottom: 0;
}

.proj p {
  margin-top: 0.3rem;
  font-size: 0.96rem;
  color: var(--muted);
}

footer {
  margin-top: 4.5rem;
  padding-top: 1.6rem;
  padding-bottom: 3rem;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
  color: var(--muted);
}

footer .machine {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  margin-top: 0.4rem;
}

@media (max-width: 40rem) {
  .hero {
    padding-top: 3.5rem;
  }
  .skills {
    grid-template-columns: 1fr;
    row-gap: 0.2rem;
  }
  .skills dd {
    margin-bottom: 0.8rem;
  }
  .entry-head {
    flex-direction: column;
    gap: 0.1rem;
  }
}

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