@import url('https://fonts.googleapis.com/css2?family=Roboto+Mono:wght@400;500;700&display=swap');

:root {
  --background: #212737;
  --foreground: #eaedf3;
  --accent: #ff6b01;
  --muted: #d5dcf2;
  --border: #ab4b08;
  --panel: #262c3b;
  --panel-soft: rgba(255, 255, 255, 0.03);
  --radius-lg: 22px;
  --radius-md: 14px;
  --shadow-soft: 0 16px 30px rgba(8, 10, 20, 0.45);
  --space-xs: 0.35rem;
  --space-sm: 0.9rem;
  --space-md: 1.5rem;
  --space-lg: 2.8rem;
  --space-xl: 3.6rem;
  --page-gutter: clamp(1rem, 2vw, 2.5rem);
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  color: var(--foreground);
  background: #2b3553;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6,
.eyebrow {
  font-family: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
}

body::selection {
  background: rgba(255, 107, 1, 0.45);
  color: #03030a;
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-shell {
  width: min(1100px, calc(100% - 2 * var(--page-gutter)));
  margin: 0 auto;
  padding: var(--space-lg) 0 var(--space-xl);
}

.skip-link {
  position: absolute;
  left: var(--page-gutter);
  top: -3rem;
  background: rgba(255, 255, 255, 0.08);
  color: var(--foreground);
  padding: var(--space-xs) var(--space-md);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  text-decoration: none;
  font-size: 0.8rem;
  transition: top 0.2s ease;
  z-index: 5;
}

.skip-link:focus-visible {
  top: var(--page-gutter);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  padding-bottom: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

.site-nav a {
  text-transform: uppercase;
  letter-spacing: 0.35em;
  font-size: 0.75rem;
  color: #d0d7ef;
  text-decoration: none;
  position: relative;
  display: inline-flex;
  align-items: center;
  transition: color 0.25s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.active {
  color: var(--foreground);
}

.site-nav a.active {
  text-decoration-line: underline;
  text-decoration-color: var(--accent);
  text-decoration-style: wavy;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.35rem;
}

.nav-toggle-checkbox {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.nav-toggle {
  display: none;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 0;
  background: transparent;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  width: 18px;
  height: 1.5px;
  background: rgba(234, 237, 243, 0.9);
  border-radius: 999px;
  display: block;
}

.nav-toggle-icon::before {
  content: '';
  position: relative;
  top: -6px;
}

.nav-toggle-icon::after {
  content: '';
  position: relative;
  top: 4px;
}

.hero {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  box-shadow: none;
}

.hero-content h1 {
  margin: 0 0 var(--space-sm);
  font-size: clamp(2.5rem, 3vw, 3.8rem);
  line-height: 1.15;
}

.hero-content h1,
.section-heading h1,
.section-heading h2,
.card header h3,
.research-grid article h3,
.publication-group h3,
.teaching-card h3,
.vacancy h3,
.contact-card h3 {
  font-family: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  letter-spacing: -0.02em;
}

.hero .eyebrow {
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.45em;
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.hero p.intro {
  color: var(--muted);
  margin: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.hero-media {
  display: flex;
  flex-direction: column;
}

.hero-image {
  background: rgba(43, 53, 83, 0.85);
  border: 2px dotted var(--accent);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  box-shadow: var(--shadow-soft);
  margin-bottom: var(--space-md);
}

.hero-image img {
  border-radius: calc(var(--radius-md) - 4px);
}

.hero-card,
.card,
.research-grid article,
.publication-group,
.teaching-card,
.vacancy,
.contact-card {
  background: rgba(43, 53, 83, 0.85);
  border: 2px dotted var(--accent);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
}

.section {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
}

.section-heading h1,
.section-heading h2 {
  margin: 0 0 var(--space-xs);
}

.section-heading p {
  margin: 0;
  color: var(--muted);
}

.cards-grid,
.research-grid,
.about-grid,
.vacancies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-lg);
}

.cards-grid,
.research-grid,
.vacancies-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-md);
}

.card header h3,
.research-grid article h3,
.publication-group h3,
.teaching-card h3,
.vacancy h3,
.contact-card h3 {
  margin: 0 0 var(--space-sm);
  color: var(--foreground);
}

.card p,
.research-grid article p,
.publication-group p,
.teaching-card p,
.vacancy p,
.contact-card p,
.card ul li,
.research-grid article ul li,
.publication-group ul li,
.section p {
  margin: 0;
  color: var(--muted);
}

.publication-group ul,
.research-grid article ul {
  margin: 0;
  padding-left: 1rem;
}

.card p {
  line-height: 1.7;
}

.section ol,
.section ul,
.card ul,
.research-grid article ul,
.publication-group ul {
  color: var(--muted);
}

.publication-group {
  margin-top: var(--space-lg);
}

.btn {
  border-radius: 999px;
  padding: 0.85rem 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  border: 1px solid transparent;
  background: transparent;
  color: var(--foreground);
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.btn.primary {
  background: var(--accent);
  color: #080a17;
}

.btn.ghost {
  border-color: rgba(255, 255, 255, 0.25);
}

.site-footer {
  text-align: center;
  color: var(--muted);
  padding: var(--space-xl) 0 0;
  font-size: 0.9rem;
}

a {
  color: var(--foreground);
  text-decoration: underline;
  text-decoration-color: currentColor;
  text-decoration-style: dashed;
  text-underline-offset: 0.3rem;
  text-decoration-thickness: 2px;
  transition: color 0.2s ease;
  text-rendering: optimizeLegibility;
}

a:hover,
a:focus-visible {
  color: var(--accent);
}

a:focus-visible {
  outline: 2px dashed rgba(255, 255, 255, 0.7);
  outline-offset: 3px;
}

.active-nav {
  text-decoration-style: wavy;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 3px;
}

@media (max-width: 1000px) {
  .cards-grid,
  .research-grid,
  .vacancies-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .site-header {
    justify-content: flex-end;
    align-items: center;
    flex-wrap: wrap;
    row-gap: var(--space-sm);
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    width: 100%;
    order: 3;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-sm);
    max-height: 0;
    overflow: hidden;
    padding: 0;
    margin-top: 0;
    background: transparent;
    transition: max-height 0.3s ease, padding 0.3s ease, margin-top 0.3s ease;
  }

  .nav-toggle-checkbox:checked ~ .site-nav {
    max-height: 420px;
    padding-top: var(--space-sm);
    margin-top: var(--space-sm);
  }

  .site-nav a {
    width: 100%;
    text-align: right;
    font-size: 0.95rem;
  }
}

@media (max-width: 520px) {
  .page-shell {
    width: 100%;
    padding: var(--space-lg) var(--space-md) var(--space-xl);
  }

  .hero {
    padding: var(--space-lg);
  }

  .cards-grid,
  .research-grid,
  .vacancies-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
}


.publication-group ul li {
  margin-bottom: 0.8rem;
}

.publication-group ul li:last-child {
  margin-bottom: 0;
}