:root {
  --ii-navy-950: #061225;
  --ii-navy-900: #0a1d38;
  --ii-navy-800: #12345b;
  --ii-blue-600: #2474ff;
  --ii-blue-500: #438cff;
  --ii-cyan-400: #24d5c2;
  --ii-surface: #ffffff;
  --ii-surface-soft: #f3f7fc;
  --ii-border: #dbe5f1;
  --ii-text: #1b2940;
  --ii-muted: #5c6b80;
  --ii-radius-sm: 0.65rem;
  --ii-radius: 1rem;
  --ii-radius-lg: 1.5rem;
  --ii-shadow: 0 18px 48px rgba(8, 29, 56, 0.1);
  --md-primary-fg-color: var(--ii-navy-900);
  --md-accent-fg-color: var(--ii-blue-600);
}

[data-md-color-scheme="default"] {
  --md-default-bg-color: #f8fafc;
  --md-default-fg-color: var(--ii-text);
  --md-default-fg-color--light: var(--ii-muted);
  --md-typeset-a-color: #1665d8;
  --md-footer-bg-color: var(--ii-navy-950);
  --md-footer-bg-color--dark: #040d1a;
}

[data-md-color-scheme="slate"] {
  --ii-surface: #0f223c;
  --ii-surface-soft: #0a1a31;
  --ii-border: #243d5e;
  --ii-text: #eef5ff;
  --ii-muted: #a9b8cc;
  --md-default-bg-color: #07162a;
  --md-default-fg-color: var(--ii-text);
  --md-default-fg-color--light: var(--ii-muted);
  --md-typeset-color: var(--ii-text);
  --md-typeset-table-color: var(--ii-border);
  --md-typeset-a-color: #72a8ff;
  --md-footer-bg-color: #040d1a;
  --md-footer-bg-color--dark: #020711;
}

html {
  scroll-behavior: smooth;
}

body {
  font-feature-settings: "kern", "liga", "calt";
  font-synthesis: none;
}

.md-header {
  background: rgba(6, 18, 37, 0.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: none;
  transition: box-shadow 180ms ease, background-color 180ms ease;
}

.md-header.is-scrolled {
  box-shadow: 0 10px 30px rgba(3, 12, 26, 0.2);
}

.md-header__title {
  font-weight: 750;
  letter-spacing: -0.02em;
}

.md-logo svg {
  fill: var(--ii-cyan-400);
}

.md-tabs {
  background: var(--ii-navy-950);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.md-tabs__link {
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.md-main__inner {
  margin-top: 1.5rem;
}

.md-content__inner {
  padding-bottom: 4rem;
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3 {
  color: var(--ii-text);
  font-weight: 760;
  letter-spacing: -0.035em;
}

.md-typeset h1 {
  margin-bottom: 1.25rem;
}

.md-typeset h2 {
  margin-top: 2.8rem;
}

.md-typeset a {
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

.md-typeset table:not([class]) {
  overflow: hidden;
  border: 1px solid var(--ii-border);
  border-radius: var(--ii-radius-sm);
  box-shadow: 0 8px 24px rgba(8, 29, 56, 0.05);
}

.md-typeset table:not([class]) th {
  background: var(--ii-navy-900);
  color: white;
}

/* Homepage */
.ii-home .md-content__inner > h1:first-child {
  display: none;
}

.ii-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 12rem;
  margin: 0 0 2.25rem;
  padding: clamp(1.1rem, 2vw, 1.8rem) clamp(1.25rem, 3vw, 2.5rem);
  display: flex;
  align-items: center;
  border-radius: var(--ii-radius-lg);
  color: white;
  background:
    radial-gradient(circle at 82% 22%, rgba(36, 213, 194, 0.25), transparent 31%),
    radial-gradient(circle at 68% 78%, rgba(36, 116, 255, 0.35), transparent 38%),
    linear-gradient(135deg, var(--ii-navy-950), var(--ii-navy-800));
  box-shadow: 0 30px 70px rgba(6, 18, 37, 0.24);
}

.ii-hero::before,
.ii-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
}

.ii-hero::before {
  width: 28rem;
  height: 28rem;
  right: -9rem;
  top: -8rem;
}

.ii-hero::after {
  width: 17rem;
  height: 17rem;
  right: 5rem;
  bottom: -10rem;
}

.ii-hero__content {
  max-width: 60rem;
}

.ii-eyebrow {
  margin: 0 0 1.15rem;
  color: var(--ii-cyan-400);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.md-typeset .ii-hero h1 {
  max-width: 58rem;
  margin: 0;
  color: white;
  font-size: clamp(1.35rem, 1.8vw, 1.75rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.ii-hero__focus {
  color: var(--ii-cyan-400);
}

.ii-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.8rem;
}

.md-typeset .ii-button {
  display: inline-flex;
  align-items: center;
  min-height: 2.1rem;
  padding: 0.36rem 0.78rem;
  border: 1px solid var(--ii-border);
  border-radius: 999px;
  color: var(--ii-blue-600);
  background: var(--ii-surface);
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.md-typeset .ii-button:hover {
  transform: translateY(-2px);
}

.md-typeset .ii-button:focus-visible,
.md-typeset .language-switcher a:focus-visible,
.md-typeset .member-links a:focus-visible {
  outline: 3px solid var(--ii-cyan-400);
  outline-offset: 3px;
}

.md-typeset .ii-button--primary {
  background: var(--ii-cyan-400);
  color: var(--ii-navy-950);
}

.md-typeset .ii-button--secondary {
  border-color: rgba(255, 255, 255, 0.32);
  color: white;
  background: rgba(255, 255, 255, 0.06);
}

.ii-section-intro {
  max-width: 44rem;
  color: var(--ii-muted);
  font-size: 1.02rem;
}

.ii-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 3rem;
}

.ii-research-card,
.ii-news-card,
.ii-join-panel {
  border: 1px solid var(--ii-border);
  background: var(--ii-surface);
  box-shadow: 0 10px 32px rgba(8, 29, 56, 0.06);
}

.ii-research-card {
  position: relative;
  overflow: hidden;
  min-height: 12rem;
  padding: 1.5rem;
  border-radius: var(--ii-radius);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.ii-research-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--ii-blue-600), var(--ii-cyan-400));
}

.ii-research-card:hover {
  transform: translateY(-4px);
  border-color: rgba(36, 116, 255, 0.45);
  box-shadow: var(--ii-shadow);
}

.ii-research-card:focus-within,
.member-card:focus-within {
  border-color: var(--ii-blue-600);
  box-shadow: 0 0 0 3px rgba(36, 116, 255, 0.18), var(--ii-shadow);
}

.md-typeset .ii-research-card h3 {
  margin: 0 0 0.7rem;
  font-size: 1.05rem;
}

.ii-research-card p {
  margin: 0;
  color: var(--ii-muted);
}

.ii-research-card a::after {
  content: " →";
}

.ii-news-list {
  display: grid;
  gap: 0.8rem;
  margin: 1.5rem 0 2rem;
}

.ii-news-card {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  border-radius: var(--ii-radius-sm);
}

.ii-news-card time {
  color: var(--ii-blue-600);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.ii-news-card p {
  margin: 0;
}

.ii-join-panel {
  margin: 3.5rem 0 1rem;
  padding: clamp(1.6rem, 5vw, 3rem);
  border-radius: var(--ii-radius-lg);
  background:
    linear-gradient(120deg, rgba(36, 116, 255, 0.08), rgba(36, 213, 194, 0.08)),
    var(--ii-surface);
}

.md-typeset .ii-join-panel h2 {
  margin: 0 0 0.7rem;
}

/* Open-source directory */
.open-source-intro {
  max-width: 50rem;
  color: var(--ii-muted);
  font-size: 1.02rem;
}

.open-source-section {
  margin: 3rem 0;
}

.open-source-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.open-source-card {
  display: flex;
  min-height: 11.5rem;
  flex-direction: column;
  padding: 1.25rem;
  border: 1px solid var(--ii-border);
  border-radius: var(--ii-radius);
  background: var(--ii-surface);
  box-shadow: 0 8px 26px rgba(8, 29, 56, 0.06);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.open-source-card:hover,
.open-source-card:focus-within {
  transform: translateY(-3px);
  border-color: rgba(36, 116, 255, 0.45);
  box-shadow: var(--ii-shadow);
}

.md-typeset .open-source-card h3 {
  margin: 0.25rem 0 0.55rem;
  font-size: 1.05rem;
}

.project-meta {
  min-height: 1rem;
  margin: 0;
  color: var(--ii-blue-600);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.project-description {
  margin: 0;
  color: var(--ii-muted);
  font-size: 0.75rem;
}

.project-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.8rem 0 0;
  padding: 0;
  list-style: none;
}

.project-topics li {
  margin: 0;
  padding: 0.2rem 0.42rem;
  border-radius: 0.35rem;
  color: var(--ii-muted);
  background: var(--ii-surface-soft);
  font-size: 0.58rem;
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: auto;
  padding-top: 0.9rem;
}

.md-typeset .project-links .ii-button {
  min-height: 1.85rem;
  padding: 0.25rem 0.62rem;
  font-size: 0.65rem;
}

/* Member directory */
.member-page-intro {
  max-width: 45rem;
  margin-bottom: 2.5rem;
  color: var(--ii-muted);
  font-size: 1.02rem;
}

.language-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 2rem;
}

.md-typeset .language-switcher a {
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--ii-border);
  border-radius: 999px;
  background: var(--ii-surface);
  font-size: 0.72rem;
  font-weight: 700;
  text-decoration: none;
}

.md-typeset .language-switcher a[aria-current="page"] {
  border-color: var(--ii-blue-600);
  background: var(--ii-blue-600);
  color: white;
}

.member-section {
  margin: 3.5rem 0;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.1rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--ii-border);
}

.md-typeset .section-heading h2 {
  margin: 0;
}

.section-heading > span {
  min-width: 1.8rem;
  padding: 0.16rem 0.48rem;
  border-radius: 999px;
  color: var(--ii-blue-600);
  background: rgba(36, 116, 255, 0.1);
  font-size: 0.68rem;
  font-weight: 800;
  text-align: center;
}

.member-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.member-card {
  overflow: hidden;
  border: 1px solid var(--ii-border);
  border-radius: var(--ii-radius);
  background: var(--ii-surface);
  box-shadow: 0 8px 26px rgba(8, 29, 56, 0.06);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.member-card:hover {
  transform: translateY(-4px);
  border-color: rgba(36, 116, 255, 0.45);
  box-shadow: var(--ii-shadow);
}

.member-avatar {
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  color: white;
  background:
    radial-gradient(circle at 72% 24%, rgba(36, 213, 194, 0.55), transparent 24%),
    linear-gradient(145deg, var(--ii-navy-800), var(--ii-blue-600));
  font-size: clamp(1.7rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.06em;
}

.member-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.member-body {
  padding: 1.05rem;
}

.md-typeset .member-body h3 {
  margin: 0.15rem 0 0.35rem;
  font-size: 0.94rem;
}

.member-role,
.member-period {
  margin: 0;
}

.member-role {
  color: var(--ii-text);
  font-size: 0.75rem;
  font-weight: 650;
}

.member-period {
  margin-top: 0.22rem;
  color: var(--ii-muted);
  font-size: 0.67rem;
}

.member-status {
  display: inline-block;
  padding: 0.18rem 0.45rem;
  border-radius: 999px;
  color: #705100;
  background: #fff2b8;
  font-size: 0.6rem;
  font-weight: 800;
  text-transform: uppercase;
}

.member-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.7rem 0 0;
  padding: 0;
  list-style: none;
}

.member-tags li {
  margin: 0;
  padding: 0.2rem 0.42rem;
  border-radius: 0.35rem;
  color: var(--ii-muted);
  background: var(--ii-surface-soft);
  font-size: 0.58rem;
}

.member-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.8rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--ii-border);
}

.md-typeset .member-links a {
  font-size: 0.65rem;
  font-weight: 750;
  text-decoration: none;
}

.member-card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(13rem, 30%) 1fr;
}

.member-card--featured .member-avatar {
  min-height: 16rem;
}

.member-card--featured .member-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.3rem, 5vw, 2.5rem);
}

.md-typeset .member-card--featured h3 {
  font-size: 1.35rem;
}

.alumni-group {
  margin: 0.65rem 0;
  border: 1px solid var(--ii-border);
  border-radius: var(--ii-radius-sm);
  background: var(--ii-surface);
}

.alumni-group summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1rem;
  cursor: pointer;
  font-weight: 750;
}

.alumni-group summary span {
  color: var(--ii-muted);
  font-size: 0.68rem;
}

.alumni-list {
  padding: 0 1rem 0.6rem;
}

.alumni-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  padding: 0.6rem 0;
  border-top: 1px solid var(--ii-border);
  font-size: 0.72rem;
}

.alumni-row time,
.alumni-note {
  color: var(--ii-muted);
}

.alumni-note {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.62rem;
}

.md-footer {
  margin-top: 3rem;
}

.md-footer-meta {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

@media screen and (max-width: 76.234375em) {
  .member-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media screen and (max-width: 44.984375em) {
  .md-main__inner {
    margin-top: 0.7rem;
  }

  .ii-hero {
    min-height: 13rem;
    margin-bottom: 2rem;
    padding: 1.45rem 1.25rem;
    border-radius: var(--ii-radius);
  }

  .ii-hero .ii-eyebrow {
    font-size: 0.62rem;
    letter-spacing: 0.1em;
  }

  .ii-hero .ii-actions {
    gap: 0.5rem;
  }

  .md-typeset .ii-hero .ii-button {
    padding-inline: 0.62rem;
    font-size: 0.7rem;
  }

  .ii-card-grid,
  .open-source-grid,
  .member-grid {
    grid-template-columns: 1fr;
  }

  .ii-research-card {
    min-height: auto;
  }

  .ii-news-card {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .member-card--featured {
    grid-template-columns: 1fr;
  }

  .member-card--featured .member-avatar {
    min-height: auto;
  }

  .alumni-row {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}