:root {
  color-scheme: light;
  /* Three relative type sizes: 15px, 20px, and 30px at the default browser font setting. */
  --font-body: 1rem;
  --font-entry: calc(4rem / 3);
  --font-section: 2rem;
  --layout-gap: 16px;
  --compact-gap: 8px;
  --sidebar-width: calc(10rem + 2 * var(--layout-gap) + 2 * var(--box-border-width));
  --sidebar-gutter: var(--layout-gap);
  --sidebar-space: calc(var(--sidebar-width) + var(--sidebar-gutter));
  --blue: #004080;
  --gold: #ffcc00;
  --box-border-width: 2px;
  --sidebar-control-font-size: var(--font-body);
  /* Surface contrasts are paired across Light and Dark. */
  --background: #f5f5f5;
  --section: #fff;
  --entry: #ededed;
  --control-background: var(--entry);
  --control-text: var(--entry-text);
  --control-hover: #dedede;
  --text: #333;
  --entry-text: #222;
  --link: var(--blue);
  --rule: #ccc;
  --rule-width: 2px;
  --chip: var(--gold);
  --chip-text: var(--blue);
  --chip-border: var(--blue);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --background: #202020; --section: #181818; --entry: #262626;
    --control-text: #fff; --control-hover: #303030;
    --text: #eee; --entry-text: #f8f8f8; --link: var(--gold);
    --rule: #666; --chip: var(--blue); --chip-text: var(--gold);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --background: #202020; --section: #181818; --entry: #262626;
  --control-text: #fff; --control-hover: #303030;
  --text: #eee; --entry-text: #f8f8f8; --link: var(--gold);
  --rule: #666; --chip: var(--blue); --chip-text: var(--gold);
}
* { box-sizing: border-box; }
html { font-size: 93.75%; scroll-padding-top: var(--layout-gap); }
body { margin: 0; font: var(--font-body)/1.6 Arial, sans-serif; color: var(--text); background: var(--background); }
a { color: var(--link); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: absolute; top: var(--compact-gap); left: var(--compact-gap); z-index: 20; padding: var(--compact-gap); color: var(--blue); background: var(--gold); transform: translateY(-200%); }
.skip-link:focus { transform: none; }
.site-header { display: flex; flex-direction: column; justify-content: center; min-height: var(--header-height, 0px); margin: var(--layout-gap) var(--layout-gap) 0 calc(var(--sidebar-space) + var(--layout-gap)); padding: var(--layout-gap); border: var(--box-border-width) solid var(--gold); border-radius: 5px; text-align: center; background: var(--section); color: var(--text); container-type: inline-size; }
.mobile-portrait { display: none; }
.header-copy { min-width: 0; container-type: inline-size; }
.site-header h1 { margin: 0; font-size: var(--font-section); line-height: 1.2; white-space: nowrap; }
.site-header p { margin: var(--compact-gap) 0 0; font-size: var(--font-body); }
.site-header .focus { font-size: var(--font-body); }
.sidebar { --sidebar-control-height: calc(var(--sidebar-control-font-size) + 2 * var(--compact-gap) + 2 * var(--box-border-width)); position: fixed; inset: var(--sidebar-gutter) auto var(--sidebar-gutter) var(--sidebar-gutter); z-index: 10; width: var(--sidebar-width); border: var(--box-border-width) solid var(--gold); border-radius: 5px; background: var(--section); color: var(--text); font-size: var(--font-body); }
/* Extend the scrollport into the gutter, keeping its native scrollbar outside the frame. */
.sidebar-scroll { width: calc(100% + 13px); height: 100%; overflow-x: hidden; overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; }
.sidebar-content { width: calc(var(--sidebar-width) - 2 * var(--box-border-width)); padding: var(--layout-gap); }
.identity { display: flex; flex-direction: column; min-height: var(--identity-height, 0px); text-align: center; margin-bottom: var(--layout-gap); padding-bottom: var(--layout-gap); border-bottom: var(--rule-width) solid var(--rule); }
.identity img { display: block; width: 100%; height: auto; aspect-ratio: 1; margin: 0 auto var(--layout-gap); object-fit: cover; border-radius: 50%; border: var(--box-border-width) solid var(--gold); }
.identity span { font-size: var(--font-entry); font-weight: bold; white-space: nowrap; text-box: trim-both cap alphabetic; }
.sidebar ul { list-style: none; margin: 0; padding: 0; }
.sidebar nav ul { display: flex; flex-direction: column; gap: var(--compact-gap); padding-top: var(--compact-gap); }
.sidebar nav a, .downloads a, :is(.section-menu, .download-menu) > summary, .theme-control select { font-family: inherit; font-size: var(--sidebar-control-font-size); font-weight: 700; line-height: 1; }
.sidebar nav a, .downloads a { display: flex; align-items: center; justify-content: center; min-height: var(--sidebar-control-height); padding: var(--compact-gap); border: var(--box-border-width) solid var(--blue); border-radius: 4px; background: var(--control-background); text-align: center; font-weight: bold; }
.sidebar nav a span, .downloads a span, :is(.section-menu, .download-menu) > summary span { text-box: trim-both cap alphabetic; }
:is(.section-menu, .download-menu) > summary { position: relative; display: flex; align-items: center; justify-content: center; min-height: var(--sidebar-control-height); gap: var(--compact-gap); padding: var(--compact-gap) calc(var(--compact-gap) + 8px); border: var(--box-border-width) solid var(--blue); border-radius: 4px; background: var(--control-background); color: var(--control-text); text-align: center; list-style: none; cursor: pointer; }
:is(.section-menu, .download-menu) > summary::-webkit-details-marker { display: none; }
.dropdown-arrow { position: absolute; top: 50%; right: var(--compact-gap); width: 8px; height: 5px; transform: translateY(-50%); pointer-events: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
:is(.section-menu, .download-menu)[open] > summary .dropdown-arrow { transform: translateY(-50%) rotate(180deg); }
.sidebar a { color: var(--control-text); text-decoration: none; }
.sidebar a:hover { text-decoration: none; }
.sidebar nav a:is(:hover, :focus-visible), .downloads a:is(:hover, :focus-visible), :is(.section-menu, .download-menu) > summary:is(:hover, :focus-visible), .theme-control select:is(:hover, :focus-visible) { background: var(--control-hover); }
.download-menu { margin-top: var(--layout-gap); padding-top: var(--layout-gap); border-top: var(--rule-width) solid var(--rule); }
.downloads { display: flex; flex-direction: column; gap: var(--compact-gap); padding-top: var(--compact-gap); }
.downloads a { gap: var(--compact-gap); }
.download-icon, .theme-icon { width: 1em; height: 1em; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.theme-control { display: flex; align-items: center; gap: var(--compact-gap); margin: var(--layout-gap) 0 0; padding-top: var(--layout-gap); border-top: var(--rule-width) solid var(--rule); }
.theme-control[hidden] { display: none; }
.theme-select { position: relative; flex: 1; min-width: 0; color: var(--control-text); }
.theme-select .theme-icon { position: absolute; top: 50%; left: calc(var(--compact-gap) + var(--box-border-width)); transform: translateY(-50%); pointer-events: none; }
.theme-symbol { display: none; }
:root:not([data-theme="light"]):not([data-theme="dark"]) .theme-symbol-system,
:root[data-theme="light"] .theme-symbol-light,
:root[data-theme="dark"] .theme-symbol-dark { display: inline; }
.theme-select .dropdown-arrow { right: calc(var(--compact-gap) + var(--box-border-width)); }
.theme-control select { appearance: none; -webkit-appearance: none; display: block; width: 100%; height: var(--sidebar-control-height); padding: var(--compact-gap) calc(var(--compact-gap) + 17px); border: var(--box-border-width) solid var(--blue); border-radius: 4px; background: var(--control-background); color: var(--control-text); text-align: center; text-align-last: center; cursor: pointer; }
.container { margin-left: var(--sidebar-space); padding: var(--layout-gap); min-width: 0; }
section { margin-bottom: var(--layout-gap); padding: var(--layout-gap); border: var(--box-border-width) solid var(--gold); border-radius: 5px; background: var(--section); }
section:last-child { margin-bottom: 0; }
section > p { margin: 0 0 var(--layout-gap); }
/* Trim font leading so the visible heading, rather than its line box, gets the shared gap. */
section h2 { margin: 0 0 var(--layout-gap); padding-bottom: var(--layout-gap); border-bottom: var(--rule-width) solid var(--rule); font-size: var(--font-section); line-height: 1.25; text-box: trim-both cap alphabetic; }
section h3 { margin: 0 0 var(--compact-gap); font-size: var(--font-entry); line-height: 1.4; }
.project-group-heading { margin: var(--layout-gap) 0 var(--layout-gap); padding-bottom: var(--layout-gap); border-bottom: var(--rule-width) solid var(--rule); font-size: var(--font-entry); text-box: trim-both cap alphabetic; }
.section-item .entry-title { margin: 0 0 var(--compact-gap); font-size: var(--font-entry); font-weight: 700; line-height: 1.35; }
.section-item .role-title { margin: 0 0 var(--compact-gap); font-size: var(--font-body); font-weight: 400; line-height: 1.4; }
.section-list, .education-list { display: flex; flex-direction: column; gap: var(--layout-gap); }
.section-item, .education-item { padding: var(--layout-gap); border: var(--box-border-width) solid var(--blue); border-radius: 4px; color: var(--entry-text); background: var(--entry); overflow-wrap: anywhere; text-box: trim-both cap alphabetic; }
.section-item p { margin: 0 0 var(--layout-gap); }
.section-item p:last-child { margin-bottom: 0; }
.section-item ul, .education-item ul { margin: var(--compact-gap) 0 0; padding-left: var(--layout-gap); }
.section-item li, .education-item li { margin-bottom: var(--compact-gap); }
.section-item li:last-child, .education-item li:last-child { margin-bottom: 0; }
.section-item a { font-weight: bold; }
.coursework { margin-top: var(--compact-gap); }
.skills-inline, .coursework-list { display: flex; flex-wrap: wrap; gap: var(--compact-gap); margin-top: var(--compact-gap); }
.education-item .coursework-list { margin-bottom: 0; padding: 0; list-style: none; }
.education-item .coursework-list li { margin: 0; }
.skills-inline span, .coursework-list li { min-width: 0; max-width: 100%; padding: var(--compact-gap); border: var(--box-border-width) solid var(--chip-border); border-radius: 4px; background: var(--chip); color: var(--chip-text); font-weight: 500; text-box: trim-both cap alphabetic; }
.contact-links { display: flex; flex-wrap: wrap; align-items: center; gap: var(--layout-gap); }
.contact-links > span { text-box: trim-both cap alphabetic; }
.project-link-note { display: inline-block; font-size: var(--font-body); }
.footer { margin: var(--layout-gap) 0 0; color: var(--text); text-align: center; }
.footer p { margin: 0; }
@media (max-width: 50em) {
  html { scroll-padding-top: 0; }
  .site-header, .container { margin-left: 0; }
  .site-header { display: grid; min-height: 0; grid-template-columns: 67px minmax(0, 1fr); align-items: center; gap: var(--compact-gap); margin: var(--compact-gap) var(--compact-gap) 0; padding: var(--layout-gap); text-align: left; }
  .mobile-portrait { display: block; width: 67px; height: 67px; object-fit: cover; border: var(--box-border-width) solid var(--gold); border-radius: 50%; }
  .site-header p { margin-top: var(--compact-gap); line-height: 1.4; }
  .site-header .focus { grid-column: 1 / -1; margin: 0; line-height: 1.5; }
  .sidebar { position: static; width: auto; margin: var(--compact-gap) var(--compact-gap) 0; }
  .sidebar-scroll { width: auto; height: auto; overflow: visible; }
  .sidebar-content { width: auto; }
  .sidebar .identity { display: none; }
  .sidebar nav ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--compact-gap); padding-top: var(--compact-gap); }
  .sidebar nav li { min-width: 0; }
  .sidebar nav li:last-child { grid-column: 1 / -1; }
  .sidebar-tools { display: flex; flex-wrap: wrap; align-items: center; gap: var(--layout-gap); margin-top: var(--layout-gap); padding-top: var(--layout-gap); border-top: var(--rule-width) solid var(--rule); }
  .download-menu { width: 100%; margin: 0; padding: 0; border: 0; }
  .theme-control { width: 100%; margin: 0; padding: var(--layout-gap) 0 0; border: 0; border-top: var(--rule-width) solid var(--rule); }
  .container { padding: var(--compact-gap); }
}
@media (max-width: 30em) {
  section { padding: var(--compact-gap); }
  .site-header { grid-template-columns: minmax(0, 1fr); gap: var(--compact-gap); padding: var(--layout-gap); text-align: center; }
  .site-header .focus { line-height: 1.4; }
  .mobile-portrait { justify-self: center; width: 53px; height: 53px; }
  .theme-control { width: 100%; padding: var(--layout-gap) 0 0; border-left: 0; border-top: var(--rule-width) solid var(--rule); }
}
@media (max-width: 23em) {
  .sidebar nav ul { grid-template-columns: minmax(0, 1fr); }
  .downloads { width: 100%; flex-direction: column; }
  .section-item, .education-item { padding: var(--compact-gap); }
}
@media print {
  :root { --box-border-width: 1px; }
  .sidebar, .skip-link { display: none; }
  .mobile-portrait { display: none; }
  .site-header, .container { margin-left: 0; }
  .site-header { min-height: 0; margin: 0 0 var(--layout-gap); background: #fff; color: #222; }
  .container { padding: 0; }
}