:root {
  color-scheme: dark;
  font-family: "Helvetica Neue", "Segoe UI", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  font-family: monospace;
}

body {
  background: radial-gradient(circle at 20% 10%, #111628, #05060c 60%);
  color: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: stretch;
  justify-content: stretch;
  overflow: hidden;
}

#experience {
  position: relative;
  flex: 1 1 auto;
  display: flex;
  align-items: stretch;
  justify-content: stretch;
}

#experience canvas {
  width: 100vw;
  height: 100dvh;
  display: block;
}

.overlay {
  position: absolute;
  top: 10px;
  left: 10px;
  max-width: min(18rem, 20vw);
  padding: 10px;
  background: rgba(185, 185, 185, 0.42);
  border: 1px solid rgba(255, 255, 255, 0.05);
  /* border-radius: 1.25rem; */
  backdrop-filter: blur(14px);
  box-shadow: 0 5px 10px rgba(6, 12, 28, 0.55);
}

.overlay h1 {
  margin: 0;
  font-size: clamp(1.0rem, 3vw, 2.0rem);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: black;
}

.overlay p {
  margin: 0;
  font-size: clamp(0.95rem, 2.2vw, 1.1rem);
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.06em;
}

.bottom-info {
  position: absolute;
  bottom: 10px;
  left: 10px;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: rgba(185, 185, 185, 0.42);
  color: black;
  border: 1px solid rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(14px);
  box-shadow: 0 5px 10px rgba(6, 12, 28, 0.55);
  z-index: 200;
}

.fps-counter {
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  color: black;
  letter-spacing: 0.05em;
  min-width: 4rem;
}

.pause-button {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.25);
  /* border-radius: 0.35rem; */
  padding: 5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: black;
  transition: all 0.2s ease;
  width: 2.5rem;
  height: 2.5rem;
}

.pause-button:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(0, 0, 255, 0.6);
  /* transform: scale(1.05); */
}

.pause-button:active {
  transform: scale(0.95);
}

.pause-button svg {
  width: 1.25rem;
  height: 1.25rem;
}

.pause-button.paused svg {
  display: none;
}

.pause-button.paused::before {
  content: '';
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 8px 0 8px 14px;
  border-color: transparent transparent transparent currentColor;
  margin-left: 2px;
}

.camera-button {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.25);
  padding: 5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: black;
  transition: all 0.2s ease;
  width: 2.5rem;
  height: 2.5rem;
}

.camera-button:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(0, 0, 255, 0.6);
}

.camera-button:active {
  transform: scale(0.95);
}

.camera-button.active {
  background: rgba(100, 180, 200, 0.3);
  border-color: rgba(0, 26, 255, 0.6);
}

.camera-button svg {
  width: 1.25rem;
  height: 1.25rem;
}

.control-panel {
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: min(16rem, 35vw);
  background: rgba(185, 185, 185, 0.42);
  border: 1px solid rgba(255, 255, 255, 0.08);
  /* border-radius: 1.35rem; */
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 5px 10px rgba(6, 12, 28, 0.55);
  display: flex;
  flex-direction: column;
  transition: width 0.3s ease, background 0.3s ease;
  z-index: 200;
}

.control-panel.collapsed {
  width: auto;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: none;
  border: none;
}

.panel-toggle {
  position: relative;
  align-self: flex-end;
  margin: 10px 10px 0 10px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(0, 0, 0, 0.25);
  /* border-radius: 0.35rem; */
  padding: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: black;
  transition: all 0.2s ease;
  width: 2.5rem;
  height: 2.5rem;
  z-index: 200;
}

.control-panel.collapsed .panel-toggle {
  margin: 0;
  background: rgba(185, 185, 185, 0.42);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 5px 10px rgba(6, 12, 28, 0.55);
}

.panel-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(0, 0, 255, 0.6);
}

.panel-toggle:active {
  transform: scale(0.95);
}

.panel-toggle svg {
  transition: transform 0.3s ease;
}

.control-panel.collapsed .panel-toggle svg {
  transform: rotate(90deg);
}

.panel-content {
  padding: 0 10px 10px 10px;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  max-height: 600px;
  overflow: hidden;
  transition: max-height 0.3s ease, opacity 0.3s ease, padding 0.3s ease;
  opacity: 1;
}

.control-panel.collapsed .panel-content {
  max-height: 0;
  opacity: 0;
  padding: 0;
}

.control-panel h2 {
  margin: 0 0 0.5rem 0;
  font-size: clamp(1.05rem, 2.4vw, 1.4rem);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
}

.control {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.control-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.control-top label {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.66);
}

.control-value {
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
  color: rgba(0, 0, 0, 0.9);
}

.palette-select {
  width: 100%;
  padding: 0.6rem 0.85rem;
  background: rgba(124, 124, 124, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 0.35rem;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  font-family: inherit;
  letter-spacing: 0.06em;
  cursor: pointer;
  outline: none;
  transition: all 0.2s ease;
}

.palette-select:hover {
  background: rgba(30, 40, 60, 0.7);
  border-color: rgba(255, 255, 255, 0.25);
}

.palette-select:focus {
  border-color: rgba(123, 216, 255, 0.6);
  box-shadow: 0 0 0 2px rgba(123, 216, 255, 0.15);
}

.palette-select option {
  background: rgba(15, 20, 35, 0.95);
  color: rgba(255, 255, 255, 0.9);
  padding: 0.5rem;
}

.control-panel input[type="range"] {
  width: 100%;
  height: 0.35rem;
  appearance: none;
  background: linear-gradient(90deg, rgba(123, 216, 255, 0.55), rgba(161, 255, 207, 0.35));
  border-radius: 999px;
  outline: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.control-panel input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.95), rgba(157, 207, 255, 0.75));
  box-shadow: 0 5px 10px rgba(20, 40, 80, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.6);
  margin-top: -0.1rem;
}

.control-panel input[type="range"]::-moz-range-track {
  height: 0.35rem;
  background: linear-gradient(90deg, rgba(123, 216, 255, 0.55), rgba(161, 255, 207, 0.35));
  border-radius: 999px;
}

.control-panel input[type="range"]::-moz-range-thumb {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.95), rgba(157, 207, 255, 0.75));
  box-shadow: 0 5px 10px rgba(20, 40, 80, 0.4);
  border: none;
}

.control-panel input[type="range"]:focus-visible {
  outline: 2px solid rgba(123, 216, 255, 0.7);
  outline-offset: 4px;
}

@media (max-width: 600px) {

  .panel-toggle {
    width: 2.25rem;
    height: 2.25rem;
    padding: 6px;
  }

  .panel-toggle svg {
    width: 18px;
    height: 18px;
  }

  .fps-counter {
    font-size: 0.85rem;
    min-width: 3.5rem;
  }

  .pause-button {
    width: 2.25rem;
    height: 2.25rem;
    padding: 0.4rem;
  }

  .pause-button svg {
    width: 1.1rem;
    height: 1.1rem;
  }

  .camera-button {
    width: 2.25rem;
    height: 2.25rem;
    padding: 0.4rem;
  }

  .camera-button svg {
    width: 1.1rem;
    height: 1.1rem;
  }

  .control-panel h2 {
    font-size: 0.95rem;
    letter-spacing: 0.1em;
  }

  .control-top label {
    font-size: 0.76rem;
  }

  .control-value {
    font-size: 0.85rem;
  }

  .palette-select {
    font-size: 0.85rem;
    padding: 0.5rem 0.75rem;
  }
}