/* =========================
   Base / Theme Variables
   ========================= */

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

:root {
  color-scheme: light dark;

  --bg-page: #f7f7f7;
  --bg-site: #ffffff;
  --bg-header: #ffffff;
  --bg-nav: #fafafa;
  --bg-nav-hover: #ececec;
  --bg-nav-active: #dfeaf4;

  --text-main: #222222;
  --text-soft: #555555;
  --text-intro: #444444;

  --border: #d7d7d7;
  --link: #0b4f8a;
  --link-hover: #083a66;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #111418;
    --bg-site: #181c21;
    --bg-header: #181c21;
    --bg-nav: #15191d;
    --bg-nav-hover: #232a31;
    --bg-nav-active: #1f3447;

    --text-main: #e8e8e8;
    --text-soft: #b7b7b7;
    --text-intro: #d0d0d0;

    --border: #313841;
    --link: #8ec5ff;
    --link-hover: #b6dbff;
  }
}

/* =========================
   Global Elements
   ========================= */

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: var(--text-main);
  background: var(--bg-page);
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover,
a:focus {
  color: var(--link-hover);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

img {
  max-width: 100%;
  height: auto;
}

code {
  font-family: Consolas, "Courier New", monospace;
}

/* =========================
   Site Wrapper
   ========================= */

.site {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--bg-site);
  min-height: 100vh;
}

/* =========================
   Header
   ========================= */

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg-header);
}

.site-header-inner {
  padding: 1.5rem;
}

.site-name {
  margin: 0;
  font-size: 2rem;
  line-height: 1.2;
}

.site-name a {
  color: var(--text-main);
  text-decoration: none;
}

.site-role,
.site-affiliation {
  margin: 0.25rem 0 0 0;
  color: var(--text-soft);
}

/* =========================
   Main Layout
   ========================= */

.site-body {
  display: flex;
  align-items: stretch;
}

/* =========================
   Navigation
   ========================= */

.site-nav {
  width: 220px;
  flex: 0 0 220px;
  border-right: 1px solid var(--border);
  background: var(--bg-nav);
  padding: 1.5rem 1rem;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav li {
  margin: 0 0 0.5rem 0;
}

.site-nav a {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  color: var(--text-main);
}

.site-nav a:hover,
.site-nav a:focus {
  background: var(--bg-nav-hover);
  text-decoration: none;
}

.site-nav a.active,
.site-nav a[aria-current="page"] {
  background: var(--bg-nav-active);
  color: var(--link);
  font-weight: bold;
}

/* =========================
   Content
   ========================= */

.content {
  flex: 1 1 auto;
  min-width: 0;
  padding: 2rem;
}

.page-header {
  margin-bottom: 2rem;
}

.page-header h2 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1.8rem;
}

.page-intro {
  font-size: 1.05rem;
  color: var(--text-intro);
  max-width: 60rem;
}

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

.page h3 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.page ul {
  padding-left: 1.25rem;
}

.page li {
  margin-bottom: 0.4rem;
}

.compact-list ul {
  margin-top: 0.35rem;
  padding-left: 1.1rem;
}

.compact-list ul li {
  margin-bottom: 0.15rem;
}

.note {
  color: var(--text-soft);
  font-size: 0.95rem;
}

.compact-list li {
  margin-bottom: 0.2rem;
}

.contact-block {
  font-style: normal;
}

.pub-list li {
  margin-bottom: 0.8rem;
}

/* =========================
   Footer
   ========================= */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 1.5rem 2rem;
  font-size: 0.95rem;
  color: var(--text-soft);
}

.site-footer p {
  margin: 0.35rem 0;
}

/* =========================
   Responsive Layout
   ========================= */

@media (max-width: 800px) {
  .site-body {
    flex-direction: column;
  }

  .site-nav {
    width: auto;
    flex: 0 0 auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1rem;
  }

  .site-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .site-nav li {
    margin: 0;
  }

  .site-nav a {
    display: inline-block;
  }

  .content {
    padding: 1.25rem;
  }
}