footer {
  text-align: center;
  font-size: smaller;
}

footer .bluesky-logo {
  width: 0.8em;
  height: 0.8em;
  margin: 0 0.1em;
  display: inline-block;
}

/* ============================================================
color one

  --color-black: #0a0a0a;
  --color-deep-gray: #1a1a1a;
  --color-mid-gray: #2e2e2e;
  --color-foreground: #f5c400;
  --color-foreground-dark: #c79b00;
  --color-foreground-light: #ffe066;
  --color-white: #f0f0f0;
  --color-off-white: #e8e2d4;
  --color-accent: #e03030;

   ============================================================ */

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  /* Core Palette */
  --color-black: #111;
  --color-deep-gray: #1a1a1a;
  --color-mid-gray: rgb(66, 32, 30);
  --color-mid-gray-fade: rgb(66, 32, 30, 0.2);
  --color-foreground: rgb(255, 173, 63);
  --color-foreground-dark: rgb(89, 63, 9); /* not accessible */
  --color-foreground-light: rgb(252, 164, 91);
  --color-white: #f0f0f0;
  --color-off-white: rgb(26, 207, 253);
  --color-accent: rgb(30, 179, 49);
  --color-accent-dark: rgb(8, 110, 12);
  --color-alert: #e03030;

  /* Dialogue Box */
  --dialog-bg: var(--color-deep-gray);
  --dialog-border: var(--color-white);
  --dialog-text: #ffffff;

  /* HUD */
  --hud-bg: rgba(20, 20, 20, 0.9);
  --hud-border: var(--color-foreground);
  --hud-label-color: var(--color-white);
  --hud-value-color: var(--color-foreground);
  --hud-accent: var(--color-accent);

  /* Name Plate */
  --nameplate-bg: var(--color-foreground);
  --nameplate-text: var(--color-black);

  /* Sidebar */
  --sidebar-bg: var(--color-foreground);
  --sidebar-icon-color: var(--color-black);

  /* Checkerboard (decorative) */
  --checker-color-a: #1a1a1a;
  --checker-color-b: #2c2c2c;

  /* Typography */
  --font-hud: "Rajdhani", "Bebas Neue", "Impact", sans-serif;
  --font-dialog: "Iosevka Etoile Web", "Segoe UI", system-ui, sans-serif;
  --font-label: "Oswald", sans-serif;

  /* Spacing */
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 12px;
}

/* ── Base Reset ─────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

a {
  color: var(--color-off-white);
}

.rajdhani-bold {
  font-family: "Rajdhani", sans-serif;
  font-weight: 700;
  font-style: normal;
}

html {
  scroll-padding-top: 84px; /* for anchored links to avoid being hidden behind fixed header */
}

body {
  background-color: var(--color-black);
  color: var(--color-white);
  font-family: sans-serif;
}

p {
  margin-bottom: 1.5em;
}

pre {
  margin-bottom: 1.5em;
}

/* ── Layout: Main Screen Wrapper ────────────────────────────── */
.main-screen {
  position: relative;
  width: 100%;
  min-height: 100vh;
  background-color: var(--color-black);
  margin: 0;
}

#inner-body {
  position: relative;
  margin-left: 122px;
  width: calc(100% - 122px);
  padding: 0;
  padding-bottom: 140px;
  padding-right: 60px;
  max-width: 920px;
  font-size: 1em;
}

#inner-body li {
  margin-left: 1em;
  margin-bottom: 1em;
}

#inner-body h1,
#inner-body h2,
#inner-body h3,
#inner-body h4,
#inner-body h5,
#inner-body h6 {
  margin-bottom: 1em;
}

/* ── Sidebar (Left) — Icon Rail ─────────────────────────────── */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 90px;
  height: 100vh;
  background-color: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 18px 0;
  gap: 20px;
  z-index: 10;
  /* border-right: 4px solid var(--color-foreground-dark);
  outline: 4px solid var(--color-accent); */

  /* Triangle cut at top-right corner */
  clip-path: polygon(
    100% 100%,
    /* top-left */ 100% 0%,
    /* top-right */ 100% 120px,
    /* start of diagonal */ 0% 200px,
    /* end of diagonal */ 0% 100% /* bottom-left */
  );
  background: linear-gradient(
    to bottom,
    var(--color-mid-gray-fade) 16%,
    var(--color-mid-gray) 20%,
    var(--sidebar-bg) 30%
  );
}

.sidebar::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 8px;
  height: 100%;
  background: linear-gradient(
    to bottom,
    transparent 16%,
    var(--color-foreground-dark) 22%
  );
  z-index: 2;
  pointer-events: none;
}

.sidebar__line {
  position: absolute;
  top: 0;
  right: 8px;
  width: 8px;
  height: 100%;
  background: linear-gradient(
    to bottom,
    transparent 14%,
    var(--color-accent) 40%
  );
  z-index: 2;
  pointer-events: none;
}

.sidebar__triangle {
  width: 205px;
  height: 180px;
  background-color: var(--color-foreground);
  clip-path: polygon(0% 0%, 100% 0%, 0% 100%);
  z-index: 12;
}

.sidebar__triangle-wrapper {
  filter: drop-shadow(4px 10px 6px var(--color-foreground-dark));
  z-index: 11;
  width: fit-content;
  position: fixed;
}

.header-area {
  z-index: 10;
  display: inline-block;
}

header > h2 {
  margin-left: 228px;
  margin-bottom: 62px;
  margin-top: 26px;
  display: block;
  padding-right: 56px;
  border-bottom: var(--color-accent-dark) solid 8px;
  padding-bottom: 8px;
  font-size: 65px;
  margin-right: 40px;
}

.sidebar__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sidebar-icon-color);
  font-size: 1.8rem;
  cursor: pointer;
  transition:
    transform 0.15s ease,
    opacity 0.15s ease;
  width: 50%;
  height: 50%;
  margin-left: 10px;
  background-color: var(--color-foreground);
  cursor: pointer;
  transition: opacity 0.15s ease;
  flex-shrink: 0;
  border: 0;
}

.sidebar-item-set {
  bottom: 90px;
  position: absolute;
  left: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sidebar-item {
  position: relative;
  z-index: 15;
  width: 36px;
  color: var(--color-black);
  background: transparent;
  max-width: 100%;
  align-self: flex-start;
}

.sidebar-item > *,
.sidebar-item a {
  margin: 0 auto;
  color: var(--color-black);
  text-align: center;
  display: block;
}

.sidebar-item a:hover {
  filter: drop-shadow(2px 2px 0px var(--color-off-white))
    drop-shadow(-2px -2px 0px var(--color-off-white));
  z-index: 11;
}

.sidebar__icon-img {
  max-height: 100%;
  fill: black;
  margin-top: 10px;
  filter: brightness(0);
}

.sidebar__icon:hover {
  opacity: 0.75;
}

.sidebar__icon:hover .sidebar__icon-img {
  filter: invert(25%) sepia(79%) saturate(1076%) hue-rotate(126deg)
    brightness(60%) contrast(119%);
}

.sidebar__icon:hover {
  transform: scale(1.15);
  opacity: 0.75;
}

.sidebar-item.src {
  font-size: 18px;
}

/* ── Name Plate (Left, Vertical) ────────────────────────────── */
.nameplate {
  position: absolute;
  left: 10px;
  top: 45%;
  transform: translateY(-50%) rotate(180deg);
  writing-mode: vertical-rl;
  color: var(--nameplate-text);
  font-family: var(--font-label);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 10px;
  border-radius: var(--radius-sm);
  z-index: 10;
  white-space: nowrap;
}

@media (max-height: 890px) {
  .nameplate {
    font-size: 1.8vh;
    top: 42%
  }
}

/* ── HUD (Top Right) ────────────────────────────────────────── 
.hud {
  position: absolute;
  top: 12px;
  right: 12px;
  background-color: var(--hud-bg);
  border: 2px solid var(--hud-border);
  border-radius: var(--radius-md);
  padding: 8px 14px 8px 14px;
  display: grid;
  grid-template-columns: auto auto;
  align-items: center;
  column-gap: 8px;
  row-gap: 2px;
  z-index: 20;
  min-width: 180px;
} */

.hud {
  position: fixed;
  top: 12px;
  right: 12px;
  top: -4px;
  right: -60px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background-color: var(--hud-bg);
  border: 2px solid var(--hud-border);
  display: block;
  z-index: 20;
  overflow: hidden;
  padding: 0;
  transform: rotate(-60deg);
}

.hud svg a {
  text-decoration: none;
}

.hud svg a:hover tspan {
  fill: var(--color-off-white);
}

.hud__label {
  font-family: var(--font-hud);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--hud-label-color);
}

.hud__value {
  font-family: var(--font-hud);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--hud-value-color);
  text-align: right;
}

.hud__value--accent {
  color: var(--hud-accent);
}

/* HUD compass/icon ring */
.hud__compass {
  grid-column: 1 / -1;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 3px solid var(--color-foreground);
  background: var(--color-deep-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 4px auto 0;
  position: relative;
}

.hud__compass::after {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-foreground);
}

/* ── Dialogue Box ────────────────────────────────────────────── */
.dialog-box {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--dialog-bg);
  border-top: 3px solid var(--dialog-border);
  padding: 22px 120px 22px 160px;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 90px;
  overflow: visible;
}

.dialog-box__text {
  font-family: var(--font-dialog);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--dialog-text);
  line-height: 1.5;
  flex: 1;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.9);
}

/* Blinking cursor at end of text */
.dialog-box__text::after {
  content: "▼";
  display: inline-block;
  margin-left: 10px;
  font-size: 0.75em;
  color: var(--color-foreground);
  animation: blink 1s step-start infinite;
}

.hide-markdown-input .dialog-box {
  display: none;
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

/* ── Message Button (Bottom Left) ───────────────────────────── */
.msg-btn {
  position: fixed;
  bottom: 24px;
  left: 44px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--color-deep-gray);
  border: 3px solid var(--color-foreground);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 40;
  cursor: pointer;
  transition:
    border-color 0.2s,
    background-color 0.2s;
}

.hide-markdown-input .msg-btn {
  background-color: var(--color-foreground);
}

.msg-btn:hover {
  background-color: var(--color-mid-gray);
  border-color: var(--color-accent);
}

.msg-btn__icon {
  width: 24px;
  height: 24px;
  fill: var(--color-white);
}

.hide-markdown-input .msg-btn__icon {
  fill: var(--color-black);
}

/* ── AUTO badge (Bottom Right) ──────────────────────────────── */
.hide-badge {
  position: fixed;
  bottom: 14px;
  right: 14px;
  background-color: var(--color-foreground);
  color: var(--color-black);
  font-family: var(--font-hud);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  z-index: 40;
  cursor: pointer;
  transition: background-color 0.15s;
}

.hide-badge:hover {
  background-color: var(--color-foreground-light);
}

.hide-badge.is-active {
  background-color: var(--color-accent);
  scale: 80%;
  right: -85px;
  bottom: 90px;
  transform: rotate(90deg);
}

/* ── Checkerboard Decorative Strip ──────────────────────────── */
.checker-strip {
  background-image: repeating-conic-gradient(
    var(--checker-color-a) 0% 25%,
    var(--checker-color-b) 0% 50%
  );
  position: absolute;
  background-size: 18px 18px;
  width: 100%;
  height: 18px;
  right: 0;
  z-index: 4;
  opacity: 0.55;
  top: -16px;
}

/* ── Utility Classes ─────────────────────────────────────────── */
.text-gold {
  color: var(--color-foreground);
}
.text-accent {
  color: var(--color-accent);
}
.text-upper {
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.font-hud {
  font-family: var(--font-hud);
}
.font-dialog {
  font-family: var(--font-dialog);
}

/* ── Footer ─────────────────────────────────────────────────── */
.footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 90px;
  background-color: var(--sidebar-bg);
  z-index: 10;
  clip-path: polygon(0% 100%, 100% 100%, 100% 0%, 0% 100%);
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to right, transparent, var(--color-black));
  z-index: 1;
  pointer-events: none;
}

/* Two lines across the top of the footer, fading left */
.footer__line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(to right, transparent, var(--color-gold-dark));
  z-index: 2;
  pointer-events: none;
}

.footer__line--inner {
  top: 4px;
  background: linear-gradient(to right, transparent, var(--color-black));
}

.hljs,
.hljs-subst {
  display: block;
  overflow-x: auto;
  padding: 0.5em;
  background: #282a36;
}

.hljs-built_in,
.hljs-selector-tag,
.hljs-section,
.hljs-link {
  color: #8be9fd;
}

.hljs-keyword {
  color: #ff79c6;
}

.hljs-title,
.hljs-attr,
.hljs-meta-keyword {
  font-style: italic;
  color: #50fa7b;
}

.hljs-string,
.hljs-meta,
.hljs-name,
.hljs-type,
.hljs-symbol,
.hljs-bullet,
.hljs-addition,
.hljs-variable,
.hljs-template-tag,
.hljs-template-variable {
  color: #f1fa8c;
}

.hljs-comment,
.hljs-quote,
.hljs-deletion {
  color: #6272a4;
}

.hljs-keyword,
.hljs-selector-tag,
.hljs-literal,
.hljs-title,
.hljs-section,
.hljs-doctag,
.hljs-type,
.hljs-name,
.hljs-strong {
  font-weight: bold;
}

.hljs-literal,
.hljs-number {
  color: #bd93f9;
}

.hljs-emphasis {
  font-style: italic;
}

.mobile-nav {
  display: none;
}
/* ── Responsive Scale ────────────────────────────────────────── */

@media (max-width: 1050px) {
  #inner-body {
  }

  header > h2 {
    margin-right: 120px;
  }
}

/* ── Tablet (≤ 1024px) ──────────────────────────────────────── */
@media (max-width: 1024px) {
  #inner-body {
    max-width: 740px;
    padding-right: 40px;
  }

  header > h2 {
    font-size: 48px;
    margin-left: 170px;
    margin-bottom: 44px;
    margin-right: 100px;
  }

  .nameplate {
    top: 42%;
  }
}

/* ── Small Tablet (≤ 768px) ─────────────────────────────────── */
@media (max-width: 768px) {
  #inner-body {
    margin-left: 80px;
    width: calc(100% - 80px);
    padding-right: 24px;
  }

  header > h2 {
    font-size: 36px;
    margin-top: 60px;
    margin-left: 140px;
    margin-bottom: 32px;
  }

  .dialog-box {
    padding: 14px 60px 14px 80px;
  }

  .dialog-box__text {
    font-size: 1rem;
  }

  .sidebar {
    width: 60px;
  }

  .sidebar-item-set {
    left: 4px;
  }

  .msg-btn {
    left: 10px;
  }

  .nameplate {
    left: 0px;
    font-size: 0.65rem;
  }
}

/* ── Phone (≤ 480px) ────────────────────────────────────────── */
@media (max-width: 480px) {
  /* Sidebar collapses to a horizontal top rail */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 56px;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    padding: 0 16px;
    clip-path: none;
    background: linear-gradient(
      to right,
      var(--color-mid-gray-fade) 15%,
      var(--color-mid-gray) 18%,
      var(--sidebar-bg) 30%
    );
  }

  .sidebar::after,
  .sidebar__line,
  .nameplate {
    display: none;
  }

  .sidebar__triangle-wrapper {
    width: 93px;
    top: 0;
    left: 0;
  }

  .sidebar__triangle {
    width: 100px;
    height: 85px;
  }

  .sidebar__icon {
    margin-left: 2px;
  }

  .sidebar-item-set {
    position: static;
    flex-direction: row;
    gap: 16px;
    bottom: auto;
    left: auto;
    margin-left: 110px;
  }

  .sidebar-item.src {
    margin-top: 10px;
  }

  .sidebar-item.nexus img {
    margin-top: 2px;
  }
  .mobile-nav {
    display: block;
    top: 56px;
    height: 22px;
    position: fixed;
    background-color: var(--color-foreground-dark);
    font-size: 12px;
    right: 0;
    width: 100%;
    text-align: right;
    padding-right: 80px;
    background: linear-gradient(
      to right,
      var(--color-mid-gray-fade) 18%,
      var(--color-mid-gray) 25%,
      var(--color-foreground-dark) 40%
    );
  }

  .mobile-nav li {
    display: inline-block;
    padding: 4px;
  }

  #inner-body {
    margin-left: 0;
    width: 100%;
    max-width: 100%;
    padding: 16px 20px 120px;
  }

  header > h2 {
    font-size: 26px;
    margin-left: 16px;
    margin-top: 88px; /* clear fixed sidebar rail */
    margin-bottom: 20px;
    padding-right: 16px;
  }

  html {
    scroll-padding-top: 82px;
  }

  .dialog-box {
    display: none;
  }

  .hud {
    display: none;
  }

  .msg-btn {
    display: none;
  }

  .hide-badge {
    display: none;
  }
}

/* ── Text Modal ─────────────────────────────────────────────── */
.text-modal {
  border: 2px solid var(--color-foreground);
  border-radius: var(--radius-md);
  background: var(--color-deep-gray);
  color: var(--color-white);
  padding: 0;
  max-width: min(720px, 90vw);
  max-height: 80vh;
  overflow: auto;
  top: 30%;
  margin: 0 auto;
}

.text-modal::backdrop {
  background: rgba(0, 0, 0, 0.75);
}

.text-modal__inner {
  padding: 32px 36px 28px;
  position: relative;
}

.text-modal__close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: transparent;
  border: none;
  color: var(--color-foreground);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  transition: color 0.15s ease;
}

.text-modal__close:hover {
  color: var(--color-foreground-light);
}

.text-modal__content {
  font-family: var(--font-dialog);
  font-size: 1rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
  color: var(--color-white);
}