/* ===========================
   CSS Variables & Reset
   =========================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-style: normal;
}

html {
  --color-bg: #121211;
  --color-text: #f9f9f7;
  --color-muted: #bdbdbd;
  --u-thickness: 1.1px;
  --u-spacing: 0.4rem;
  --u-offset: 0.2rem;

  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  background: var(--color-bg);
  font-family: "Lucida Console", monospace;
  font-size: 14px;
  line-height: 1.45;
  letter-spacing: 0.01em;
  height: 100dvh;
  overflow: hidden;
}

body,
a {
  color: var(--color-text);
}

::selection {
  background: var(--color-text);
  color: var(--color-bg);
}

/* ===========================
   Layout
   =========================== */
main {
  height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.ct {
  margin: 0 auto;
  padding: 0.6em 1.6em;
  max-width: 52ch;
  width: 100%;
  position: relative;
  z-index: 1;
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
}

.ct::-webkit-scrollbar {
  display: none;
}

.ct > * {
  margin: 1rem 0 0;
}

/* ===========================
   Links
   =========================== */
a {
  color: var(--color-text);
  text-decoration: none;
  position: relative;
  z-index: 1;
}

a::before {
  content: "";
  position: absolute;
  inset: 0;
  padding: 1em;
  z-index: -1;
}

a:focus,
a:hover {
  text-decoration: none;
}

/* ===========================
   Header link dashed underline
   =========================== */
.h a::after {
  content: "";
  position: absolute;
  bottom: calc(-1.1 * var(--u-offset));
  left: 0;
  right: 0;
  height: var(--u-thickness);
  background: repeating-linear-gradient(
    to right,
    var(--color-muted) 0,
    var(--color-muted) 2px,
    transparent 2px,
    transparent var(--u-spacing)
  );
  transition: background 0.3s ease-out;
  opacity: 0.75;
}

.h a:hover::after {
  background: var(--color-muted);
  height: calc(var(--u-thickness) * 0.5);
}

/* ===========================
   Navigation links
   =========================== */
.nav-links {
  margin-top: 0.5rem;
  text-align: center;
  transform: translateX(-1.0rem);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: calc(-1.1 * var(--u-offset));
  left: 0;
  right: 0;
  height: var(--u-thickness);
  background: repeating-linear-gradient(
    to right,
    var(--color-muted) 0,
    var(--color-muted) 2px,
    transparent 2px,
    transparent var(--u-spacing)
  );
  transition: background 0.3s ease-out;
  opacity: 0.75;
}

.nav-links a:hover::after {
  background: var(--color-muted);
  height: calc(var(--u-thickness) * 0.5);
}

/* ===========================
   Social links
   =========================== */
.about-social-links {
  list-style: none;
  padding: 0;
  margin: 1.2em 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  transform: translateX(-1.0rem);
}

.about-social-links li {
  margin: 0;
}

.about-social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  padding: 0.3em;
  color: var(--color-muted);
  transition: color 0.2s ease;
}

.about-social-links a::before,
.about-social-links a::after {
  display: none;
}

.about-social-links a:hover {
  color: var(--color-text);
}

/* ===========================
   Header / Footer
   =========================== */
header {
  margin-bottom: 1.5em;
}

footer {
  padding: 1em 0;
}

sup,
small {
  color: var(--color-muted);
  font-size: 0.8em;
}

sup {
  font-size: 0.7em;
}

small {
  display: block;
  margin-top: 1.5em;
  text-align: center;
}

/* ===========================
   Lists & Article links
   =========================== */
ul {
  list-style: none;
  padding: 0;
  margin: 0 0 2em 0;
}

li {
  margin: 0.6rem 0;
  position: relative;
}

.pt li {
  padding: 0 0 0 0.6em;
}

.pt li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 68%;
  width: 0.6em;
  height: 1px;
  background: var(--color-text);
  transform: scaleX(1);
  transform-origin: right;
  transition: transform 1s ease;
}

.pt li:hover::before {
  transform: scaleX(2);
  transition-duration: 0.3s;
}

.pt li a {
  display: inline-block;
  margin-left: 0.6em;
  white-space: nowrap;
}

/* ===========================
   ASCII animation classes
   =========================== */
a.as {
  cursor: pointer;
  user-select: none;
}

a.as::selection {
  background: transparent;
}

a.as:hover {
  position: relative;
  cursor: pointer;
}

/* ===========================
   sr-only
   =========================== */
.so {
  position: absolute;
  display: block;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  padding: 0;
  white-space: nowrap;
  overflow: hidden;
}

/* ===========================
   WebGL Canvas
   =========================== */
#gl {
  display: block;
  width: 100%;
  max-width: 26rem;
  margin: 0 auto;
  aspect-ratio: 500 / 300;
  background: none;
  border: none;
  position: relative;
  z-index: -1;
  cursor: pointer;
}

#gl:active {
  cursor: pointer;
}

/* ===========================
   Bat fallback (loaded dynamically)
   =========================== */
.bat-container {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 26rem;
  margin: 0 auto;
  aspect-ratio: 500 / 300;
  overflow: hidden;
  position: relative;
  z-index: -1;
}

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

/* Small phones */
@media (max-width: 480px) {
  body {
    font-size: 12px;
  }
  .ct {
    padding: 0.4em 1em;
    max-width: 100%;
  }
  #gl,
  .bat-container {
    max-width: 100%;
    aspect-ratio: 5 / 3;
  }
  .about-social-links {
    gap: 0.3rem;
  }
  .about-social-links a {
    font-size: 1.1rem;
  }
  .pt li a {
    white-space: normal;
    word-break: break-word;
  }
}

/* Tablets */
@media (min-width: 481px) and (max-width: 768px) {
  body {
    font-size: 13px;
  }
  .ct {
    padding: 0.5em 1.4em;
    max-width: 48ch;
  }
  #gl,
  .bat-container {
    max-width: 22rem;
  }
}

/* Desktop */
@media (min-width: 769px) and (max-width: 1200px) {
  .ct {
    max-width: 56ch;
  }
  #gl,
  .bat-container {
    max-width: 28rem;
  }
}

/* Large screens */
@media (min-width: 1201px) {
  body {
    font-size: 15px;
  }
  .ct {
    max-width: 62ch;
    padding: 0.8em 2em;
  }
  #gl,
  .bat-container {
    max-width: 32rem;
  }
}

/* Dynamic height adjustments */
@media (max-height: 600px) {
  .ct > * {
    margin: 0.3rem 0 0;
  }
  br {
    display: none;
  }
  #gl,
  .bat-container {
    aspect-ratio: 5 / 2;
  }
  .about-social-links {
    margin: 0.4em 0;
  }
}

@media (max-height: 480px) {
  #gl,
  .bat-container {
    display: none;
  }
  .ct > * {
    margin: 0.2rem 0 0;
  }
}

@media (min-height: 900px) {
  .ct > * {
    margin: 1.5rem 0 0;
  }
}

/* ===========================
   Fade-in animation
   =========================== */
@keyframes fadeInArticle {
  0% {
    opacity: 0;
    transform: translateY(6px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.article-fade-in {
  animation: fadeInArticle 0.5s ease-out forwards;
  opacity: 0;
}

.article-skeleton {
  color: var(--color-muted);
  opacity: 0.35;
  pointer-events: none;
}