:root {
  --color-dark: #101a24;
  --color-deep: #091119;
  --color-accent: #20c997;
  --color-text: #1e2933;
  --color-muted: #647381;
  --color-surface: #edf7f3;
  --color-background: #ffffff;
  --color-background-soft: #f7faf9;
  --color-border-dark: #426077;
  --color-border-light: #b9d0d3;
  --font-body: Inter, Aptos, Arial, sans-serif;
  --font-code: 'JetBrains Mono', 'Cascadia Mono', Consolas, monospace;
  --content-width: 1180px;
  --radius: 3px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
}

body:has(#lumos-toggle:checked) {
  --color-accent: #f2c94c;
  --color-surface: #fff9e8;
  --color-border-light: #d8c98f;
}

a { color: inherit; }

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--color-accent);
  color: var(--color-deep);
  font-family: var(--font-code);
  font-weight: 700;
  transform: translateY(-160%);
}

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

.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;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgb(9 17 25 / 95%);
  border-bottom: 1px solid var(--color-border-dark);
  color: white;
  backdrop-filter: blur(12px);
}

.header-inner,
.hero-inner,
.section-grid,
.production-inner,
.contact-inner {
  width: min(calc(100% - 96px), var(--content-width));
  margin: 0 auto;
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.wordmark {
  font-family: var(--font-code);
  font-weight: 800;
  letter-spacing: .01em;
  text-decoration: none;
}

.wordmark strong { color: var(--color-accent); }

nav { display: flex; gap: var(--space-4); }

nav a {
  position: relative;
  color: #c7d5dc;
  font-family: var(--font-code);
  font-size: .82rem;
  text-decoration: none;
}

nav a::before { content: './'; color: var(--color-accent); }
nav a:hover { color: white; }

a:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 4px;
}

.hero {
  position: relative;
  overflow: hidden;
  background: var(--color-deep);
  color: white;
  border-bottom: 1px solid var(--color-border-dark);
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0 0 0 auto;
  width: 34%;
  border-left: 1px solid rgb(66 96 119 / 45%);
  background-size: 72px 72px;
  background-image:
    linear-gradient(to right, rgb(66 96 119 / 20%) 1px, transparent 1px),
    linear-gradient(to bottom, rgb(66 96 119 / 20%) 1px, transparent 1px);
  pointer-events: none;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 72% 30%, rgb(242 201 76 / 18%), transparent 28%);
  opacity: 0;
  pointer-events: none;
  transition: opacity .35s ease;
}

body:has(#lumos-toggle:checked) .hero::before { opacity: 1; }

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(330px, .75fr);
  align-items: center;
  gap: clamp(48px, 7vw, 96px);
  min-height: calc(100vh - 72px);
  padding: var(--space-7) 0;
}

.terminal-line,
.hero-kicker,
.eyebrow,
.meta,
.system-card,
.stack-row,
.tags,
.production-points,
.interest-tags,
.button {
  font-family: var(--font-code);
}

.terminal-line {
  margin: 0 0 var(--space-2);
  color: #a9bec7;
  font-size: .9rem;
}

.terminal-line span,
.hero-kicker,
.eyebrow { color: var(--color-accent); }

.hero-kicker {
  margin: 0 0 var(--space-3);
  font-size: clamp(.75rem, 1.2vw, .92rem);
  font-weight: 700;
  letter-spacing: .03em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p { margin-top: 0; }

h1,
h2,
h3,
h4 {
  font-family: var(--font-code);
  line-height: 1.12;
}

h1 {
  max-width: 820px;
  margin-bottom: var(--space-4);
  font-size: clamp(2.8rem, 6.4vw, 5.4rem);
  letter-spacing: -.055em;
  text-transform: uppercase;
}

h1 span { color: var(--color-accent); }

.hero-lead {
  max-width: 650px;
  margin-bottom: var(--space-5);
  color: #c7d5dc;
  font-size: clamp(1.1rem, 2vw, 1.3rem);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4em;
  padding: 12px 20px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  font-size: .86rem;
  font-weight: 800;
  text-decoration: none;
}

.button-primary { background: var(--color-accent); color: var(--color-deep); }
.button-secondary { color: white; }
.button-dark { border-color: var(--color-border-dark); color: white; }
.button:hover { text-decoration: underline; text-underline-offset: 4px; }

.system-card {
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius);
  background: rgb(16 26 36 / 92%);
  box-shadow: -6px 6px 0 var(--color-accent);
}

.system-card-bar,
.system-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: 12px 16px;
  color: #a9bec7;
  font-size: .75rem;
}

.system-card-bar { border-bottom: 1px solid var(--color-border-dark); }
.system-foot { border-top: 1px solid var(--color-border-dark); }
.status-dot { color: var(--color-accent); }
.status-dot::before { content: '● '; font-size: .7em; }
.status-dot[data-status="employed"] { color: var(--color-border-light); }
.status-dot[data-status="unavailable"] { color: var(--color-muted); }

.code-block {
  padding: var(--space-4);
  overflow-x: auto;
  color: #d8e4e8;
  font-size: clamp(.78rem, 1.1vw, .92rem);
  line-height: 1.9;
}

.code-block p { margin: 0; white-space: nowrap; }
.code-key { color: #9fd7c4; }
.code-string { color: white; }
.code-number { color: var(--color-accent); }
.code-indent { padding-left: var(--space-3); }

.section { padding: var(--space-7) 0; scroll-margin-top: 72px; }
.section-soft { background: var(--color-background-soft); }

.section-grid {
  display: grid;
  grid-template-columns: minmax(220px, 30%) minmax(0, 70%);
  gap: var(--space-5);
}

.section-heading { padding-right: var(--space-3); }

.eyebrow {
  margin-bottom: var(--space-2);
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .02em;
  text-transform: uppercase;
}

.section-heading h2,
.production-inner h2,
.contact-inner h2 {
  margin-bottom: 0;
  font-size: clamp(1.75rem, 3.5vw, 2.65rem);
  letter-spacing: -.035em;
}

.stack-panel { border-top: 1px solid var(--color-border-light); }

.stack-row {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) 2fr;
  gap: var(--space-3);
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border-light);
}

.stack-row span { color: var(--color-accent); font-size: .84rem; }
.stack-row strong { color: var(--color-text); }

.experience-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.meta {
  margin-bottom: var(--space-1);
  color: var(--color-accent);
  font-size: .82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.experience-header h3,
.project-card h3 { margin-bottom: var(--space-1); font-size: clamp(1.5rem, 3vw, 2rem); }
.experience-header p:last-child { margin-bottom: 0; color: var(--color-muted); }
.experience-index { color: var(--color-border-light); font: 700 2rem/1 var(--font-code); }

.experience-intro {
  max-width: 68ch;
  margin: var(--space-4) 0;
  font-size: 1.08rem;
}

.expertise-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }

.expertise-grid article {
  padding: var(--space-3);
  border: 1px solid var(--color-border-light);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
  background: white;
}

.expertise-marker { color: var(--color-accent); font: 800 1rem var(--font-code); }
.expertise-grid h4 { margin: var(--space-2) 0 var(--space-1); }
.expertise-grid p { margin-bottom: 0; color: var(--color-muted); font-size: .94rem; }

.projects-list { display: grid; gap: var(--space-3); }

.project-card {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid var(--color-border-light);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.project-number { color: var(--color-accent); font: 800 .9rem var(--font-code); }
.project-description { max-width: 68ch; color: var(--color-text); }

.project-results {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border-light);
  font-family: var(--font-code);
}

.project-results p {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0;
}

.project-results strong { color: var(--color-accent); font-size: 1.18rem; }
.project-results span { color: var(--color-muted); font-size: .78rem; font-weight: 700; }

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.tags li {
  padding: 5px 9px;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  background: white;
  color: var(--color-muted);
  font-size: .75rem;
  font-weight: 700;
}

.production-band { background: var(--color-dark); color: white; padding: var(--space-7) 0; }

.production-inner {
  display: grid;
  grid-template-columns: minmax(220px, 30%) minmax(0, 70%);
  gap: var(--space-5);
}

.production-inner > .eyebrow { grid-column: 1; }
.production-inner h2 { grid-column: 2; color: white; }
.production-points {
  grid-column: 2;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2) var(--space-4);
  margin-top: var(--space-3);
  color: #c7d5dc;
  font-size: .88rem;
}

.production-points p { margin: 0; }
.production-points span { color: var(--color-accent); font-weight: 800; }

.interests > p { max-width: 68ch; font-size: 1.08rem; }

.interest-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); color: var(--color-accent); font-size: .82rem; font-weight: 700; }

.contact { padding: var(--space-7) 0 var(--space-5); background: var(--color-deep); color: white; }
.contact-inner h2 { max-width: 850px; }
.contact-lead { max-width: 66ch; margin: var(--space-3) 0 var(--space-5); color: #c7d5dc; font-size: 1.1rem; }

.hero-lead,
.experience-intro,
.project-description,
.interests > p,
.contact-lead {
  text-align: left;
  text-wrap: pretty;
  hyphens: auto;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-7);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-dark);
  color: #a9bec7;
  font-size: .85rem;
}

footer p { margin-bottom: 0; }

.lumos-easter-egg {
  position: relative;
  margin-left: auto;
  font-family: var(--font-code);
  text-align: right;
}

.lumos-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.lumos-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 108px;
  padding: 5px 9px;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius);
  color: var(--color-accent);
  cursor: pointer;
  user-select: none;
}

.lumos-trigger:hover { border-color: var(--color-accent); }
.lumos-toggle:focus-visible + .lumos-trigger { outline: 3px solid var(--color-accent); outline-offset: 4px; }
.lumos-command::before { content: '$ lumos'; }
.lumos-toggle:checked + .lumos-trigger .lumos-command::before { content: '$ nox'; }

.lumos-message {
  position: absolute;
  right: 0;
  bottom: calc(100% + 12px);
  width: max-content;
  max-width: min(440px, 80vw);
  margin: 0;
  padding: 10px 13px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  background: var(--color-dark);
  color: #f7e5a5;
  font-size: .76rem;
  text-align: left;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}

.lumos-toggle:checked ~ .lumos-message {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.error-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-deep);
  color: white;
}

.error-page {
  position: relative;
  isolation: isolate;
  width: 100%;
  min-height: calc(100vh - 152px);
  display: grid;
  place-items: center;
  flex: 1;
  overflow: hidden;
  padding: var(--space-6) 24px;
}

.error-page::before {
  content: '';
  position: absolute;
  z-index: -1;
  inset: 0;
  background-size: 72px 72px;
  background-image:
    linear-gradient(to right, rgb(66 96 119 / 18%) 1px, transparent 1px),
    linear-gradient(to bottom, rgb(66 96 119 / 18%) 1px, transparent 1px);
}

.error-panel {
  width: min(100%, 780px);
  padding: clamp(32px, 7vw, 72px);
  border: 1px solid var(--color-border-dark);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
  background: rgb(16 26 36 / 94%);
  box-shadow: -6px 6px 0 var(--color-accent);
}

.error-panel .terminal-line { margin-bottom: var(--space-3); }

.error-code {
  margin-bottom: var(--space-3);
  color: var(--color-accent);
  font: 800 clamp(4rem, 13vw, 8rem)/.9 var(--font-code);
  letter-spacing: -.08em;
}

.error-panel h1 {
  max-width: none;
  margin-bottom: var(--space-3);
  font-size: clamp(2rem, 5vw, 3.6rem);
  text-transform: none;
}

.error-copy {
  max-width: 58ch;
  margin-bottom: var(--space-4);
  color: #c7d5dc;
  font-size: 1.08rem;
  text-wrap: pretty;
}

.revelio-easter-egg {
  position: relative;
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-dark);
  font-family: var(--font-code);
}

.revelio-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.revelio-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 220px;
  min-height: 40px;
  padding: 5px 9px;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius);
  color: var(--color-accent);
  font-size: .82rem;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.revelio-trigger:hover { border-color: var(--color-accent); }
.revelio-toggle:focus-visible + .revelio-trigger { outline: 3px solid var(--color-accent); outline-offset: 4px; }
.revelio-command::before { content: '$ revelio'; }
.revelio-toggle:checked + .revelio-trigger .revelio-command::before { content: '$ finite incantatem'; }

.revelio-message {
  width: max-content;
  max-width: min(440px, 100%);
  margin: var(--space-2) 0 0;
  padding: 10px 13px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  background: var(--color-dark);
  color: #f7e5a5;
  font-size: .76rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}

.revelio-toggle:checked ~ .revelio-message {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.error-body:has(#revelio-toggle:checked) { --color-accent: #f2c94c; }

.error-footer {
  width: min(calc(100% - 96px), var(--content-width));
  margin: 0 auto;
  padding: var(--space-3) 0;
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; min-height: auto; }
  .system-card { max-width: 620px; }
  .expertise-grid { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  .header-inner,
  .hero-inner,
  .section-grid,
  .production-inner,
  .contact-inner { width: min(calc(100% - 48px), var(--content-width)); }

  .header-inner { min-height: 64px; }
  nav { gap: var(--space-2); }
  nav a { font-size: .75rem; }
  .hero-inner { padding: var(--space-6) 0; }
  .hero::after { display: none; }
  .section { padding: var(--space-6) 0; }
  .section-grid,
  .production-inner { grid-template-columns: 1fr; gap: var(--space-4); }
  .production-inner > .eyebrow,
  .production-inner h2,
  .production-points { grid-column: 1; }
  .production-points { grid-template-columns: 1fr; }
  .stack-row { grid-template-columns: 1fr; gap: 4px; }
  .project-card { grid-template-columns: 1fr; }
  .project-number { margin-bottom: -8px; }
  footer { flex-direction: column; }
  .lumos-easter-egg { margin-left: 0; text-align: left; }
  .lumos-message { right: auto; left: 0; }
  .error-footer { width: min(calc(100% - 48px), var(--content-width)); }
}

@media (max-width: 620px) {
  .header-inner {
    flex-wrap: wrap;
    gap: 6px;
    padding: 10px 0;
  }

  .header-inner > .wordmark {
    width: 100%;
    text-align: center;
  }

  nav {
    width: 100%;
    justify-content: space-between;
    padding-top: 7px;
    border-top: 1px solid rgb(66 96 119 / 45%);
  }

  .section,
  #contact { scroll-margin-top: 83px; }
}

@media (max-width: 420px) {
  h1 { font-size: 2.55rem; }
  .hero-actions .button,
  .contact-actions .button { width: 100%; }
  .system-foot { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero::before,
  .lumos-message,
  .revelio-message { transition: none; }
}