:root{
  --u: calc(100vw / 12);
  --line: 1px;
  --track-h: var(--line);
  --thumb: calc(var(--u) * 1.25);
  --content-w: calc(var(--u) * 10);
  --pad: calc(var(--u) * 0.3);
  --controls-h: calc(var(--u) * 3);
  --row-h: calc(var(--u) * 1);
  --row-gap: calc(var(--u) * 0.65);

  --bg: #fff;
  --fg: #000;
  --thumb-outer: #fff;
  --thumb-ring: #000;
  --thumb-center: #fff;
  --device-rotation: 0deg;
  --overlay-rotation: 0deg;
  --icon-pulse-scale: 1.6;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overscroll-behavior: none;
  transition:
    background 120ms linear,
    color 120ms linear;
}

body.is-landscape .overlay-backdrop {
  backdrop-filter: blur(2px);
}


body.dark {
  --bg: #000;
  --fg: #fff;
  --thumb-outer: #000;
  --thumb-ring: #fff;
  --thumb-center: #000;
}

.app {
  min-height: 100svh;
  padding: var(--pad);
  display: flex;
  justify-content: center;
  align-items: stretch;
}

.panel {
  width: var(--content-w);
  max-width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--pad);
}

.controls {
  height: var(--controls-h);
  display: flex;
  align-items: center;
  justify-content: space-around;
}

.app,
.panel,
.faders {
  touch-action: none;
}

.faders {
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.faders input[type="range"] {
  pointer-events: none;
}

.top-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: calc(var(--u) * 0.25);
}

.btn {
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  background: var(--bg);
  border: var(--line) solid var(--fg);
  border-radius: 999px;
  padding: 0;
  display: inline-grid;
  place-items: center;
  touch-action: manipulation;
  cursor: pointer;
  transition:
    background 180ms cubic-bezier(0.22, 0.9, 0.24, 1),
    color 180ms cubic-bezier(0.22, 0.9, 0.24, 1),
    border-color 180ms cubic-bezier(0.22, 0.9, 0.24, 1),
    transform 90ms ease-out;
}

.btn:active {
  transform: scale(0.98);
}

.btn.big {
  width: calc(var(--u) * 2.25);
  height: calc(var(--u) * 2.25);
  justify-self: center;
}

.btn.small {
  width: calc(var(--u) * 1.15);
  height: calc(var(--u) * 1.15);
}

.btn.is-active {
  background: var(--fg);
}

.btn.is-active svg * {
  stroke: var(--bg);
}

.btn svg {
  width: 70%;
  height: 70%;
  display: block;
}

.btn svg * {
  stroke: var(--fg);
  stroke-width: var(--line);
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition:
    stroke 180ms cubic-bezier(0.22, 0.9, 0.24, 1),
    fill 180ms cubic-bezier(0.22, 0.9, 0.24, 1),
    opacity 120ms linear;
}

.faders {
  display: flex;
  flex: auto;
  justify-content: space-evenly;
  flex-direction: column;
  gap: var(--row-gap);
  padding-top: calc(var(--u) * 0.2);
  padding-bottom: calc(var(--u) * 0.2);
}

.fader-row {
  height: var(--row-h);
  display: flex;
  align-items: center;
}

input[type="range"] {
  width: 100%;
  margin: 0;
  background: transparent;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  touch-action: pan-y;
  --thumb-scale: 1;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: var(--track-h);
  background: var(--fg);
  border-radius: 999px;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: var(--thumb);
  height: var(--thumb);
  border-radius: 50%;
  border: var(--line) solid var(--fg);
  background:
    radial-gradient(circle,
      var(--thumb-center) 0 38%,
      var(--thumb-ring) 39% 52%,
      var(--thumb-outer) 53% 100%
    );
  margin-top: calc((var(--track-h) - var(--thumb)) / 2);
  transform: scale(var(--thumb-scale));
  transition:
    transform 110ms cubic-bezier(0.2, 0.8, 0.2, 1),
    background 90ms linear,
    border-color 120ms linear;
}

input[type="range"]::-moz-range-track {
  height: var(--track-h);
  background: var(--fg);
  border: none;
  border-radius: 999px;
}

input[type="range"]::-moz-range-thumb {
  width: var(--thumb);
  height: var(--thumb);
  border-radius: 50%;
  border: var(--line) solid var(--fg);
  background:
    radial-gradient(circle,
      var(--thumb-center) 0 38%,
      var(--thumb-ring) 39% 52%,
      var(--thumb-outer) 53% 100%
    );
  transform: scale(var(--thumb-scale));
  transition:
    transform 110ms cubic-bezier(0.2, 0.8, 0.2, 1),
    background 90ms linear,
    border-color 120ms linear;
}

input[type="range"].is-active {
  --thumb-scale: 1.14;
  --thumb-outer: var(--fg);
  --thumb-ring: var(--fg);
  --thumb-center: var(--bg);
}

input[type="range"]::-moz-focus-outer {
  border: 0;
}


@media (min-width: 800px) {
  :root {
    --u: min(calc(100vw / 12), 56px);
  }
}


.overlay.hidden {
  display: none;
}

.overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  padding: var(--pad);
}

.overlay-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
}

.overlay-panel {
  position: relative;
  z-index: 1;
  width: min(92vw, 720px);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 0.25);
  padding: calc(var(--u) * 0.25);
  border-radius: calc(var(--u) * 0.28);
  border: var(--line) solid var(--fg);
  background: var(--bg);
  color: var(--fg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
	transform: rotate(var(--overlay-rotation)) scale(1);
  transform-origin: 50% 50%;
  transition:
    transform 420ms cubic-bezier(0.22, 0.9, 0.24, 1),
    background 120ms linear,
    border-color 120ms linear,
    color 120ms linear;
}

body.orientation-left .overlay-panel,
body.orientation-right .overlay-panel {
  width: min(88vh, 720px);
  max-height: 88vw;
}

.overlay-image-wrap {
  display: grid;
  place-items: center;
  min-height: 200px;
  max-height: 70vh;
  overflow: auto;
  border-radius: calc(var(--u) * 0.2);
  border: var(--line) solid var(--fg);
  background: color-mix(in srgb, var(--bg) 88%, var(--fg) 12%);
}

.overlay-image-wrap img {
  display: block;
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: calc(var(--u) * 0.12);
}

.overlay-actions {
  display: flex;
  gap: calc(var(--u) * 0.2);
  justify-content: flex-end;
  justify-self: end;
}

.overlay-actions .btn {
  background: var(--bg);
  color: var(--fg);
}

.overlay-actions .btn svg * {
  stroke: var(--fg);
}

.btn svg {
  transform-origin: 50% 50%;
  transition:
    transform 160ms cubic-bezier(0.2, 0.8, 0.2, 1),
    opacity 120ms linear;
}

.btn.is-pressed svg {
  transform: scale(var(--icon-pulse-scale));
  animation: icon-pulse 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes icon-pulse {
  0% { transform: scale(1); }
  45% { transform: scale(1.16); }
  100% { transform: scale(1); }
}

body.dark .overlay-backdrop {
  background: rgba(0, 0, 0, 0.82);
}



#btnShot {
}

#btnShot.is-pending,
#btnVid.is-pending {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

#btnShot.is-pending svg *,
#btnVid.is-pending svg * {
  stroke: var(--bg);
}

#btnShot.is-pending {
  transform: scale(1.08);
}

#btnShot.is-pending svg {
  animation: shot-pulse 1s ease-in-out infinite;
}

#btnShot.is-pending::after {
  content: "";
  position: absolute;
  inset: calc(var(--line) * -2);
  border-radius: 999px;
  border: var(--line) solid var(--fg);
  border-top-color: transparent;
  animation: shot-spin 0.9s linear infinite;
}

#btnShot:disabled {
  opacity: 1;
  cursor: default;
}

#btnShot svg {
}


@keyframes shot-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes shot-pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(0.92);
    opacity: 0.7;
  }
}

.info-overlay-panel {
  width: min(92vw, 720px);
}

.info-overlay-content {
  display: grid;
  gap: calc(var(--u) * 0.2);
}

.info-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: calc(var(--u) * 0.3);
  padding: calc(var(--u) * 0.25);
  border: var(--line) solid var(--fg);
  border-radius: calc(var(--u) * 0.2);
  background: var(--bg);
  color: var(--fg);
  text-decoration: none;
  transition:
    transform 120ms ease-out,
    background 120ms linear,
    color 120ms linear,
    border-color 120ms linear;
}

.info-link:active {
  transform: scale(0.98);
}

.info-link-label {
  font-size: 0.95rem;
  font-weight: 600;
}

.info-link-handle {
  font-size: 0.85rem;
  opacity: 0.72;
  text-align: right;
  word-break: break-word;
}


.info-overlay-content {
  display: grid;
  gap: calc(var(--u) * 0.35);
  justify-items: center;
  text-align: center;
}

.info-title h1 {
  margin: 0;
  font-size: 2.2rem;
  letter-spacing: 0.06em;
}

.info-subtitle {
  margin: 0;
  font-size: 1.25rem;
  opacity: 0.8;
}

.info-icons {
  display: flex;
  gap: calc(var(--u) * 0.35);
  justify-content: center;
}

.info-credit {
  display: grid;
  gap: calc(var(--u) * 0.15);
  justify-items: center;
}

.info-credit p {
  margin: 0;
  font-size: 1.25rem;
}

.info-icon {
  width: calc(var(--u) * 1.4);
  height: calc(var(--u) * 1.4);
  display: grid;
  place-items: center;
  border: var(--line) solid var(--fg);
  border-radius: 999px;
  background: var(--bg);
  color: var(--fg);
  text-decoration: none;
  transition:
    transform 120ms ease-out,
    background 120ms linear,
    color 120ms linear;
}

.info-icon:active {
  transform: scale(0.95);
}

.info-icon svg {
  width: 65%;
  height: 65%;
}

.info-icon svg * {
  stroke: var(--fg);
  stroke-width: var(--line);
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.overlay-image-wrap video {
  display: block;
  max-width: 100%;
  max-height: 70vh;
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: calc(var(--u) * 0.12);
  background: #000;
}

#btnVid {
  position: relative;
}

#btnVid.is-pending {
  transform: scale(1.08);
}

#btnVid.is-pending svg {
  animation: shot-pulse 1s ease-in-out infinite;
}

#btnVid.is-pending::after {
  content: "";
  position: absolute;
  inset: calc(var(--line) * -2);
  border-radius: 999px;
  border: var(--line) solid var(--fg);
  border-top-color: transparent;
  animation: shot-spin 0.9s linear infinite;
}

#btnVid:disabled {
  opacity: 1;
  cursor: default;
}