:root {
  --ground: #f4f6f8;
  --surface: #ffffff;
  --text: #3a3d40;
  --heading: #1b365d;
  --muted: #5b6b7f;
  --accent: #b4501f;
  --brand-accent: #c85a27;
  --control: #7a8594;
  --border: #d5dbe2;
  --focus: #1b365d;
  --error: #b42318;
  --risk-accent: #006a7a;
  --vector-accent: #1f68a8;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --ground: #10213a;
    --surface: #1b365d;
    --text: #f4f6f8;
    --heading: #f4f6f8;
    --muted: #c9d3df;
    --accent: #e8894f;
    --brand-accent: #c85a27;
    --control: #8ea0b5;
    --border: #2e4a72;
    --focus: #f0a06b;
    --error: #ff8a80;
    --risk-accent: #4fd6e8;
    --vector-accent: #7db8f0;
    color-scheme: dark;
  }
}

[data-theme="light"] {
  --ground: #f4f6f8;
  --surface: #ffffff;
  --text: #3a3d40;
  --heading: #1b365d;
  --muted: #5b6b7f;
  --accent: #b4501f;
  --brand-accent: #c85a27;
  --control: #7a8594;
  --border: #d5dbe2;
  --focus: #1b365d;
  --error: #b42318;
  --risk-accent: #006a7a;
  --vector-accent: #1f68a8;
  color-scheme: light;
}

[data-theme="dark"] {
  --ground: #10213a;
  --surface: #1b365d;
  --text: #f4f6f8;
  --heading: #f4f6f8;
  --muted: #c9d3df;
  --accent: #e8894f;
  --brand-accent: #c85a27;
  --control: #8ea0b5;
  --border: #2e4a72;
  --focus: #f0a06b;
  --error: #ff8a80;
  --risk-accent: #4fd6e8;
  --vector-accent: #7db8f0;
  color-scheme: dark;
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/Inter-Regular.woff2") format("woff2");
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/Inter-Bold.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/IBMPlexMono-Regular-Latin1.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/IBMPlexMono-Medium-Latin1.woff2") format("woff2");
}

@font-face {
  font-family: "Cinzel";
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
  src: url("../fonts/Cinzel-wght.woff2") format("woff2");
}

* {
  box-sizing: border-box;
}

html {
  min-width: 20rem;
  background: var(--ground);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--ground);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

body::before {
  position: fixed;
  z-index: -1;
  top: 8rem;
  right: -8rem;
  width: 22rem;
  height: 22rem;
  border: 1px solid var(--border);
  border-radius: 50%;
  box-shadow:
    0 0 0 3.5rem var(--ground),
    0 0 0 calc(3.5rem + 1px) var(--border);
  content: "";
  opacity: 0.65;
  pointer-events: none;
}

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

a {
  color: var(--accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 0.14em;
}

a:focus-visible,
input:focus-visible {
  border-radius: 0.125rem;
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

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

h1,
h2,
h3 {
  color: var(--heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

h1 {
  max-width: 14ch;
  margin-bottom: 1.25rem;
  font-size: clamp(2.5rem, 9vw, 5.75rem);
}

h2 {
  margin-bottom: 1.25rem;
  font-size: clamp(1.75rem, 4vw, 2.65rem);
}

h3 {
  margin-bottom: 0;
  font-size: 1.4rem;
}

main {
  width: min(100% - 2rem, 70rem);
  min-height: 58vh;
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  border-radius: 0.25rem;
  background: var(--surface);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--ground) 94%, transparent);
}

.header-inner {
  display: grid;
  width: min(100% - 2rem, 76rem);
  margin-inline: auto;
  padding-block: 1rem;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  width: fit-content;
  align-items: center;
}

.brand img {
  width: auto;
  height: 44px;
}

.theme-dark {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .theme-light {
    display: none;
  }

  :root:not([data-theme]) .theme-dark {
    display: block;
  }
}

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

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

.site-header nav,
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.25rem;
}

.site-header nav a {
  color: var(--text);
  font-weight: 650;
  text-decoration: none;
}

.site-header nav a[aria-current="page"] {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 0.12em;
  text-underline-offset: 0.35em;
}

.theme-control {
  display: none;
  min-width: 0;
  padding: 0;
  border: 0;
}

.js .theme-control {
  display: block;
}

.theme-control legend {
  margin-bottom: 0.25rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.theme-options {
  display: inline-flex;
  max-width: 100%;
  padding: 0.2rem;
  border: 1px solid var(--control);
  border-radius: 999px;
  gap: 0.1rem;
}

.theme-options label {
  position: relative;
  display: block;
  cursor: pointer;
}

.theme-options input {
  position: absolute;
  inset: 0;
  opacity: 0;
}

.theme-options label {
  padding: 0.28rem 0.62rem;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 650;
  line-height: 1.4;
}

.theme-options label:has(input:checked) {
  background: var(--heading);
  color: var(--ground);
}

.theme-options label:has(input:focus-visible) {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.hero {
  padding: clamp(4.5rem, 12vw, 9rem) 0 clamp(4rem, 9vw, 7rem);
}

.hero--compact {
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.eyebrow {
  margin-bottom: 1rem;
  color: var(--accent);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.lede {
  max-width: 38rem;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 3vw, 1.45rem);
}

.todo {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.9em;
}

.muted,
.updated {
  color: var(--muted);
}

.projects {
  padding-bottom: clamp(5rem, 10vw, 8rem);
}

.section-heading {
  margin-bottom: 2rem;
}

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

.project-grid {
  display: grid;
  gap: 1rem;
}

.project-card {
  --card-accent: var(--accent);
  min-width: 0;
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid var(--border);
  border-left: 0.3rem solid var(--card-accent);
  border-radius: 0.5rem;
  background: var(--surface);
}

.project-card--risk {
  --card-accent: var(--risk-accent);
}

.project-card--vector {
  --card-accent: var(--vector-accent);
}

.project-card--dossier {
  --card-accent: var(--muted);
}

.card-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  gap: 0.75rem 1rem;
}

.project-card p {
  max-width: 52ch;
  margin-bottom: 1.5rem;
}

.badge {
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--control);
  border-radius: 999px;
  color: var(--text);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

.prose-panel,
.resume {
  max-width: 48rem;
  margin-bottom: clamp(5rem, 10vw, 8rem);
  padding: clamp(1.5rem, 5vw, 3rem);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--surface);
  font-size: 1.1rem;
}

.prose-panel p:last-child {
  margin-bottom: 0;
}

.resume section + section {
  padding-top: 2.25rem;
  border-top: 1px solid var(--border);
  margin-top: 2.25rem;
}

.resume section p:last-child {
  margin-bottom: 0;
}

.resume-contact {
  padding-top: 2.25rem;
  border-top: 1px solid var(--border);
  margin: 2.25rem 0 0;
}

.not-found {
  display: flex;
  min-height: 60vh;
  align-items: flex-start;
  flex-direction: column;
  justify-content: center;
  padding-block: 5rem;
}

.not-found > img {
  margin-bottom: 2rem;
}

.not-found h1 {
  font-size: clamp(2.5rem, 8vw, 4.75rem);
}

.button-link {
  display: inline-block;
  padding: 0.75rem 1rem;
  border: 2px solid var(--accent);
  border-radius: 0.35rem;
  margin-top: 1rem;
  font-weight: 700;
  text-decoration: none;
}

.site-footer {
  padding-block: 2.5rem;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: grid;
  width: min(100% - 2rem, 76rem);
  margin-inline: auto;
  gap: 1.5rem;
}

.footer-inner p {
  max-width: 44rem;
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-inner .wordmark {
  color: var(--accent);
  font-family: Cinzel, Georgia, serif;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

@media (min-width: 44rem) {
  .header-inner {
    grid-template-columns: auto 1fr;
    align-items: center;
  }

  .site-header nav {
    justify-self: end;
  }

  .theme-control {
    grid-column: 1 / -1;
  }

  .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-card:first-child {
    grid-column: 1 / -1;
  }

  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: end;
  }

  .site-footer nav {
    justify-content: flex-end;
  }
}

@media (min-width: 64rem) {
  .header-inner {
    grid-template-columns: auto 1fr auto;
  }

  .theme-control {
    grid-column: auto;
  }
}

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