@font-face {
  font-family: "JetBrains Mono";
  src: url("/jetbrains-mono/JetBrainsMono-VariableFont_wght.ttf") format("truetype-variations");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("/jetbrains-mono/JetBrainsMono-Italic-VariableFont_wght.ttf") format("truetype-variations");
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

:root {
  /* Typography */
  --font-size-base: 11px;
  --font-size-title: 3.25rem;
  --font-size-heart: 1.875rem;
  --line-height-base: 19.5px;
  --line-height-title: 1.21;

  --global-font-body: "JetBrains Mono", monospace;
  --font-fallback: "JetBrains Mono", ui-monospace, "Courier New", monospace;

  /* Sizes */
  --size-folk: 11rem;
  --size-content-max: 38rem;

  /* Borders */
  --border-width: 1px;
  --border-radius: 0.1rem;

  /* Animations & Transitions */
  --transition-fast: 0.05s ease;
  --transition-normal: 0.2s ease;
  --transition-canvas: 0.3s ease;
  --transition-content: 0.25s ease;
  --animation-float: 3s ease-in-out infinite;
  --animation-float-up: 2s ease-out forwards;

  /* Transform Values */
  --transform-fade-distance: 0.625rem;
  --transform-rotate-fish: 5deg;
  --scale-hover: 1.15;
  --scale-active: 0.95;
  --scale-aardvark-active: 0.92;
  --scale-folk-btn-active: 0.9;

  /* Opacities */
  --opacity-canvas: 0.15;
  --opacity-active: 0.7;

  /* Colors */
  --color-background: #111;
  --color-text: #fff;
  --color-highlight: cyan;
  --color-highlight-alt: magenta;
  --color-highlight-alt2: #0ff;
  --color-border: rgba(255, 255, 255, 0.25);
  --color-gradient-dark: rgba(0, 0, 0, 0.8);
  --color-gradient-transparent: rgba(0, 0, 0, 0);
}

html {
  height: 100%;
  height: 100vh;
  height: 100svh;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  font-family: var(--global-font-body, var(--font-fallback));
  font-weight: 400;
}
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background-color: var(--color-background);
  color: var(--color-text);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  padding: 1.25rem;
  width: 100vw;
  height: 100vh;
  height: 100svh;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
html, body {
  overscroll-behavior: none;
}
/* Canvas layer */
#noise-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-canvas);
  -webkit-transition: opacity var(--transition-canvas);
}
#noise-canvas.active {
  opacity: var(--opacity-canvas);
}
#game-noise-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-canvas);
  -webkit-transition: opacity var(--transition-canvas);
}
#game-noise-canvas.active {
  opacity: 0.15;
}
#canvas-gradient {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, var(--color-gradient-dark) 0%, var(--color-gradient-transparent) 100%);
  pointer-events: none;
  z-index: -1;
  display: none;
  opacity: 0;
  transition: opacity var(--transition-canvas);
  -webkit-transition: opacity var(--transition-canvas);
}
#canvas-gradient.active {
  opacity: 1;
}
/* Home canvas effect */
#home-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-canvas);
  -webkit-transition: opacity var(--transition-canvas);
  pointer-events: none;
}
#home-canvas.active {
  opacity: 1;
}
/* Header layout */
header {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: flex-start;
  margin-bottom: 3.75rem;
  width: 100%;
  letter-spacing: -.075em;
  z-index: 1000;
  position: relative;
}
.header-left {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.header-center {
  display: flex;
  flex-direction: row;
  gap: 1rem;
  text-align: center;
  justify-content: center;
  align-items: center;
}
.header-right {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  text-align: right;
}
/* Links styling */
a {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: opacity var(--transition-normal);
  -webkit-transition: opacity var(--transition-normal);
  padding: 0 2px;
  border-radius: 3px;
  display: inline-block;
  user-select: none;
  -webkit-user-select: none;
}
a[target="_blank"] {
  border: var(--border-width) dotted var(--color-border);
  margin-bottom: -2px;
}
a:hover {
  background-color: var(--color-highlight);
  color: var(--color-background);
}
a:active {
  background-color: var(--color-highlight);
  transform: scale(var(--scale-active));
  -webkit-transform: scale(var(--scale-active));
  transition: all var(--transition-fast);
  -webkit-transition: all var(--transition-fast);
}

a.glassnode-link:hover {
  background-color: rgb(247, 147, 26);
  color: var(--color-background);
}

a.glassnode-link:active {
  background-color: rgb(247, 147, 26);
  color: var(--color-background);
  transform: scale(0.95);
  -webkit-transform: scale(0.95);
}

/* Nav items styling */
.nav-item {
  cursor: pointer;
  width: max-content;
  transition: opacity var(--transition-normal);
  -webkit-transition: opacity var(--transition-normal);
  padding: 0.1rem 0.25rem 0;
  border-radius: var(--border-radius);
  user-select: none;
  -webkit-user-select: none;
}
.nav-item:hover {
  background-color: var(--color-text);
  color: var(--color-background);
}
.nav-item:active {
  background-color: var(--color-text);
  color: var(--color-background);
  transform: scale(var(--scale-active));
  -webkit-transform: scale(var(--scale-active));
  transition: all var(--transition-fast);
  -webkit-transition: all var(--transition-fast);
}
.nav-item.active {
  background-color: var(--color-text);
  color: var(--color-background);
}
#nav-home {
  margin-left: calc(0.25rem * -1);
}
@keyframes spark {
  0% {
    background: linear-gradient(90deg, var(--color-background) 0%, var(--color-background) 40%, var(--color-highlight) 50%, var(--color-highlight-alt) 60%, var(--color-highlight-alt2) 70%, var(--color-background) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  100% {
    background: linear-gradient(90deg, var(--color-background) 0%, var(--color-highlight) 0%, var(--color-highlight-alt) 10%, var(--color-highlight-alt2) 20%, var(--color-background) 60%, var(--color-background) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
}
.nav-item.spark {
  animation: spark var(--transition-fast) ease-out;
}
/* Main content */
.container {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  z-index: 1000;
  position: relative;
}
/* Vertical text on left */
.vertical-text {
  cursor: default;
  position: fixed;
  left: 1.25rem;
  top: 52%;
  transform: translateY(-50%) rotate(-90deg);
  -webkit-transform: translateY(-50%) rotate(-90deg);
  transform-origin: left center;
  -webkit-transform-origin: left center;
  white-space: nowrap;
  font-size: var(--font-size-base);
  letter-spacing: 0.1rem;
  margin-left: 0.3rem;
}
/* content section */
.content {
  text-align: center;
  max-width: var(--size-content-max);
  opacity: 1;
  transform: translateY(0) scale(1);
  -webkit-transform: translateY(0) scale(1);
  will-change: opacity, transform;
}
.content.fade-out {
  animation: fadeOut var(--transition-content) forwards;
  -webkit-animation: fadeOut var(--transition-content) forwards;
}
.content.fade-in {
  animation: fadeIn var(--transition-content) forwards;
  -webkit-animation: fadeIn var(--transition-content) forwards;
}
.content-block-game {
  margin-bottom: -3rem;
}
.content-text {
  text-transform: uppercase;
}

@keyframes fadeOut {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(var(--transform-fade-distance)) scale(0.98);
  }
}
@-webkit-keyframes fadeOut {
  from {
    opacity: 1;
    -webkit-transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    -webkit-transform: translateY(10px) scale(0.98);
  }
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(var(--transform-fade-distance)) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
@-webkit-keyframes fadeIn {
  from {
    opacity: 0;
    -webkit-transform: translateY(10px) scale(0.98);
  }
  to {
    opacity: 1;
    -webkit-transform: translateY(0) scale(1);
  }
}
.content-title {
  font-size: var(--font-size-title);
  font-weight: bold;
  font-style: italic;
  margin-bottom: 1.25rem;
  letter-spacing: 0.1rem;
  line-height: var(--line-height-title);
}
.content-title.game {
  margin-top: calc(2.5rem * -1);
}
.content-title.work {
  margin-top: calc(2.5rem * -1);
}
.fish-emoji {
  cursor: pointer;
  display: inline-block;
  transition: transform var(--transition-normal), -webkit-transform var(--transition-normal);
  -webkit-transition: transform var(--transition-normal), -webkit-transform var(--transition-normal);
  pointer-events: auto;
  user-select: none;
}
.fish-emoji:hover {
  transform: scale(var(--scale-hover)) rotate(var(--transform-rotate-fish));
  -webkit-transform: scale(var(--scale-hover)) rotate(var(--transform-rotate-fish));
}
.fish-emoji:active {
  transform: scale(var(--scale-active));
  -webkit-transform: scale(var(--scale-active));
}
/* Interactive image */
.image-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}
.folk-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.folk-nav-buttons {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}
.folk-nav-btn {
  cursor: pointer;
  background: none;
  border: none;
  color: var(--color-text);
  padding: 0.3rem 0.6rem;
  transition: all var(--transition-fast);
  -webkit-transition: all var(--transition-fast);
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(calc(1rem * -1));
  -webkit-transform: translateY(calc(1rem * -1));
}
.folk-nav-btn:hover {
  color: var(--color-highlight);
  transform: translateY(calc(1rem * -1)) scale(var(--scale-hover));
  -webkit-transform: translateY(calc(1rem * -1)) scale(var(--scale-hover));
}
.folk-nav-btn:active {
  opacity: var(--opacity-active);
  transform: translateY(calc(1rem * -1)) scale(var(--scale-folk-btn-active));
  -webkit-transform: translateY(calc(1rem * -1)) scale(var(--scale-folk-btn-active));
}
.folk-nav-btn svg {
  stroke-linecap: round;
  stroke-linejoin: round;
}
.aardvark {
  position: static;
  max-width: var(--size-folk);
  max-height: var(--size-folk);
  cursor: pointer;
  touch-action: manipulation;
  user-select: none;
  transition: transform var(--transition-fast);
  -webkit-transition: transform var(--transition-fast);
}
.aardvark:active {
  transform: scale(var(--scale-aardvark-active));
  -webkit-transform: scale(var(--scale-aardvark-active));
}
.folk-name {
  font-size: var(--font-size-base);
  font-weight: bold;
  text-transform: uppercase;
}
.aardvark.floating {
  animation: float var(--animation-float);
  -webkit-animation: float var(--animation-float);
}
@keyframes float {
  0%, 100% {
    transform: translateY(0);
    -webkit-transform: translateY(0);
  }
  50% {
    transform: translateY(calc(1rem * -1));
    -webkit-transform: translateY(calc(1rem * -1));
  }
}
@-webkit-keyframes float {
  0%, 100% {
    -webkit-transform: translateY(0);
  }
  50% {
    -webkit-transform: translateY(calc(1rem * -1));
  }
}
/* Heart animation */
.heart {
  position: fixed;
  font-size: var(--font-size-heart);
  animation: float-up var(--animation-float-up);
  -webkit-animation: float-up var(--animation-float-up);
  pointer-events: none;
}

@keyframes float-up {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
    -webkit-transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(calc(12.5rem * -1)) scale(1.5);
    -webkit-transform: translateY(calc(12.5rem * -1)) scale(1.5);
  }
}
@-webkit-keyframes float-up {
  0% {
    opacity: 1;
    -webkit-transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    -webkit-transform: translateY(calc(12.5rem * -1)) scale(1.5);
  }
}

.scroll-bar {
  position: fixed;
  right: 0;
  top: 0;
  bottom: 0;
  width: 8px;
  background: transparent;
  z-index: 1;
  pointer-events: none;
  padding: 0;
}
.scroll-bar-thumb {
  position: absolute;
  right: 2px;
  width: 4px;
  background: white;
  opacity: 0.15;
  border-radius: 2px;
  top: 0;
  margin: 5px 0;
}
#scroll-percent {
  position: fixed;
  right: 2px;
  top: 50%;
  font-size: 0.5rem;
  color: var(--color-text);
  opacity: 0.7;
  font-family: var(--global-font-body);
  user-select: none;
  pointer-events: none;
  z-index: 2;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  margin: 5px 0;
}

@media (max-width: 640px) {
  .vertical-text {
    display: none;
  }

  header {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
  }

  .header-left .extra {
    display: none;
  }

  .header-center {
    flex-direction: row;
    justify-content: flex-start;
    gap: 0.5rem;
    text-align: left;
  }

  .header-right {
    flex-direction: row;
    gap: 0.75rem;
    text-align: left;
    margin-left: calc(0.25rem * -1);
  }
}

#click-counter {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  font-size: var(--font-size-base);
  color: var(--color-text);
  opacity: 0.5;
  font-family: var(--global-font-body);
  user-select: none;
  pointer-events: none;
}

/* Spectrum visualizer */
#spectrum-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 100;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

#spectrum-canvas.active {
  opacity: 1;
}

/* FiiO/Modular Synth style volume toggle */
.volume-control {
  position: fixed;
  bottom: 1.25rem;
  left: 0.75rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  opacity: 1;
}

.volume-toggle-label {
  font-size: 7px;
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
  letter-spacing: 1px;
  text-align: center;
  font-weight: 500;
}

.volume-toggle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  user-select: none;
}

.volume-toggle-track {
  position: relative;
  width: 3px;
  height: 50px;
  background: linear-gradient(180deg,
    rgba(255, 255, 255, 0.15) 0%,
    rgba(255, 255, 255, 0.05) 100%
  );
  border-radius: 2px;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.8);
}

.volume-toggle-thumb {
  position: absolute;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  width: 14px;
  height: 8px;
  background: linear-gradient(180deg,
    rgba(255, 255, 255, 0.95) 0%,
    rgba(200, 200, 200, 0.9) 100%
  );
  border-radius: 1px;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.6),
    inset 0 0.5px 0 rgba(255, 255, 255, 0.4);
  transition: background 0.1s ease;
  top: 50%;
  cursor: grab;
}

.volume-toggle-thumb:active {
  cursor: grabbing;
}

.volume-toggle:active .volume-toggle-thumb {
  background: linear-gradient(180deg,
    rgba(255, 255, 255, 0.8) 0%,
    rgba(180, 180, 180, 0.8) 100%
  );
}

.volume-toggle-value {
  font-size: 8px;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-align: center;
  min-width: 35px;
  font-weight: 500;
}

@media (max-width: 640px) {
  .volume-control {
    bottom: 0.75rem;
    left: 0rem;
  }

  .volume-toggle-track {
    height: 40px;
  }
}