html {
  background-image:
    linear-gradient(color-mix(in srgb, var(--border-color) 38%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--border-color) 28%, transparent) 1px, transparent 1px);
  background-position: center top;
  background-size: 96px 96px;
}

body .content {
  position: relative;
  width: min(var(--page-width), calc(100vw - 1.8rem));
  max-width: min(var(--page-width), calc(100vw - 1.8rem));
  min-width: 0;
  flex-shrink: 1;
}

body {
  overflow-x: hidden;
}

nav {
  margin-bottom: 1.5rem;
}

nav a,
button {
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 3px;
}

.home-shell {
  position: relative;
  isolation: isolate;
  box-sizing: border-box;
  max-width: 100%;
  min-height: 680px;
  overflow: hidden;
  padding: 5rem 0 3rem;
}

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

.home-geometry {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  color: var(--primary-color);
  pointer-events: none;
}

.geometry-stage {
  position: absolute;
  top: -1.5rem;
  left: 42%;
  width: 1180px;
  max-width: 128vw;
  height: auto;
  border: 0;
  color: inherit;
  opacity: 0.82;
  transform: translateX(-50%);
  animation: geometry-drift 22s ease-in-out infinite;
}

.geo-panel rect {
  fill: color-mix(in srgb, var(--bg-0) 84%, transparent);
  stroke: color-mix(in srgb, var(--primary-color) 28%, transparent);
  stroke-width: 1;
}

.geo-panel path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.geo-panel .faint,
.geo-panel .geo-arc {
  stroke: var(--text-2);
}

.geo-tree {
  opacity: 0.64;
}

.geo-tree .geo-ground {
  stroke-width: 1.2;
}

.geo-fractal path {
  stroke-dasharray: 86;
  stroke-dashoffset: 86;
  animation: tree-grow-up 8.5s ease-in-out infinite;
  animation-fill-mode: both;
}

.geo-fractal .tree-depth-0 {
  animation-delay: 0s;
}

.geo-fractal .tree-depth-1 {
  animation-delay: 0.35s;
}

.geo-fractal .tree-depth-2 {
  animation-delay: 0.75s;
}

.geo-fractal .tree-depth-3 {
  animation-delay: 1.15s;
}

.geo-fractal .tree-depth-4 {
  animation-delay: 1.55s;
}

.geo-fractal .tree-depth-5 {
  animation-delay: 1.95s;
}

.geo-poly,
.geo-terrain,
.geo-signal {
  opacity: 0.28;
}

.geo-poly path,
.geo-terrain path,
.geo-signal path {
  stroke-dasharray: 18 12;
  animation: signal-shift 18s linear infinite;
}

.home-hero {
  max-width: 780px;
  padding-top: 4.2rem;
}

.home-slogan {
  margin: 0;
  color: var(--text-0);
  font-family: var(--header-font);
  font-size: 6rem;
  font-weight: 700;
  line-height: 0.96;
}

.home-slogan::before {
  content: none;
}

.home-slogan span {
  display: block;
}

.home-slogan span:first-child {
  color: var(--primary-color);
}

.home-slogan span:last-child {
  color: var(--primary-color);
}

.home-slogan .slogan-outline {
  color: var(--text-0);
}

@supports (-webkit-text-stroke: 1px currentColor) {
  .home-slogan .slogan-outline {
    color: transparent;
    -webkit-text-stroke: 1px color-mix(in srgb, var(--text-0) 72%, transparent);
    text-shadow: 0 0 18px color-mix(in srgb, var(--primary-color) 18%, transparent);
  }
}

.home-intro {
  max-width: 610px;
  margin: 1.5rem 0 0;
  color: var(--text-1);
  font-size: 1.1rem;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.homepage-navigation {
  margin: 4.5rem 0 2rem;
  padding: 0 0 2rem;
}

.homepage-navigation h2 {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 2rem;
  overflow-wrap: anywhere;
}

.nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.nav-card {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px color-mix(in srgb, var(--text-0) 10%, transparent);
}

.nav-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px color-mix(in srgb, var(--text-0) 15%, transparent);
}

.nav-card > span:first-child {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-0);
  font-size: 1.25rem;
}

.nav-card p {
  margin: 0 0 1rem;
  color: var(--text-1);
  font-size: 0.9rem;
  line-height: 1.4;
}

.nav-link {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  transition: background-color 0.3s ease;
}

.nav-link:hover {
  text-decoration: none;
}

/* ===== Papers ===== */

.papers-list {
  margin: 2rem 0;
}

.paper-entry {
  padding: 1.75rem 0;
  border-top: 1px solid var(--border-color);
}

.paper-entry:first-child {
  padding-top: 0;
  border-top: none;
}

.paper-meta {
  margin: 0 0 0.4rem;
  font-family: var(--code-font), monospace;
  font-size: 0.75rem;
  color: var(--text-2);
}

.paper-venue {
  color: var(--primary-color);
  font-weight: 600;
}

.paper-title {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
}

.paper-title a {
  color: var(--text-0);
  text-decoration: none;
  transition: color 0.2s ease;
}

.paper-title a:hover {
  color: var(--primary-color);
}

.paper-authors {
  margin: 0 0 0.7rem;
  font-size: 0.83rem;
  color: var(--text-2);
}

.paper-abstract {
  margin: 0 0 0.7rem;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-1);
}

.paper-keywords {
  margin: 0;
  font-family: var(--code-font), monospace;
  font-size: 0.72rem;
  color: var(--text-2);
  line-height: 1.5;
}

@keyframes geometry-drift {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  50% {
    transform: translateX(-50%) translateY(14px);
  }
}

@keyframes signal-shift {
  to {
    stroke-dashoffset: -120;
  }
}

@keyframes tree-grow-up {
  0%,
  8% {
    stroke-dashoffset: 86;
    opacity: 0;
  }

  25%,
  72% {
    stroke-dashoffset: 0;
    opacity: 1;
  }

  100% {
    stroke-dashoffset: -86;
    opacity: 0;
  }
}

@media (max-width: 992px) {
  body {
    display: block;
  }

  body .left-content,
  body .right-content {
    display: none;
  }

  body .content {
    width: 100%;
    max-width: 100%;
  }

  .home-shell {
    min-height: 620px;
    padding-top: 4rem;
  }

  .home-slogan {
    font-size: 4.7rem;
  }

  .geo-signal {
    display: none;
  }
}

@media (max-width: 700px) {
  html {
    background-size: 72px 72px;
  }

  .home-shell {
    min-height: auto;
    padding: 3rem 0 2rem;
  }

  .home-hero,
  .homepage-navigation,
  .home-intro {
    width: calc(100vw - 2.8rem);
    max-width: 100%;
  }

  .geometry-stage {
    top: 0;
    left: 38%;
    max-width: 190vw;
    opacity: 0.48;
  }

  .geo-poly,
  .geo-terrain {
    display: none;
  }

  .geo-tree {
    opacity: 0.42;
  }

  .home-slogan {
    font-size: 3.25rem;
    line-height: 1;
  }

  .home-intro {
    font-size: 1rem;
  }

  .nav-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 0;
  }

  .homepage-navigation {
    margin-top: 3rem;
  }

  .homepage-navigation h2 {
    font-size: 1.45rem;
  }

  .nav-card {
    padding: 1rem;
  }
}

@media (max-width: 430px) {
  .home-slogan {
    font-size: 2.55rem;
  }

  .home-intro {
    width: 280px;
    max-width: 100%;
  }

  .nav-card {
    min-height: 0;
  }

  .nav-card p {
    min-height: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}