:root {
  font-family: Arial, Helvetica, sans-serif;
  color: #fff;
  background: #111;
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; overscroll-behavior: none; }
button { font: inherit; -webkit-tap-highlight-color: transparent; }
#camerafeed { position: fixed; inset: 0; width: 100%; height: 100%; }

.interface {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  padding: max(22px, env(safe-area-inset-top)) 20px max(18px, env(safe-area-inset-bottom));
}

.identity {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,.62);
  text-shadow: 0 1px 12px rgba(0,0,0,.32);
}

.artist { font: italic 25px/1 Georgia, 'Times New Roman', serif; }
.work { font-size: 9px; line-height: 1; letter-spacing: .1em; text-transform: uppercase; }

.reticle {
  position: absolute;
  left: 50%;
  top: 48%;
  width: 7px;
  height: 7px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 50%;
  box-shadow: 0 1px 8px rgba(0,0,0,.25);
}

.instruction {
  position: absolute;
  left: 50%;
  top: 22%;
  width: min(78vw, 330px);
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 13px 13px 13px 17px;
  border: 1px solid rgba(255,255,255,.48);
  border-radius: 18px;
  background: rgba(20,20,20,.30);
  box-shadow: 0 5px 24px rgba(0,0,0,.16);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  pointer-events: auto;
  transition: opacity .45s ease, transform .45s ease;
}

.instruction p { flex: 1; margin: 0; font-size: 11px; line-height: 1.4; letter-spacing: .035em; }
.instruction button { width: 29px; height: 29px; flex: 0 0 29px; padding: 0 0 2px; border: 1px solid rgba(255,255,255,.5); border-radius: 50%; background: rgba(0,0,0,.08); color: #fff; font: 300 20px/1 Arial,sans-serif; }
.instruction.is-hiding { opacity: 0; transform: translate(-50%, -8px); pointer-events: none; }

.controls {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: max(20px, env(safe-area-inset-bottom));
  display: grid;
  grid-template-columns: 1fr 82px 1fr;
  align-items: center;
  gap: 18px;
}

.materials {
  justify-self: end;
  display: flex;
  gap: 9px;
  pointer-events: auto;
}

.material {
  width: 39px;
  height: 39px;
  padding: 0;
  border: 1px solid rgba(255,255,255,.55);
  border-radius: 50%;
  box-shadow: 0 2px 16px rgba(0,0,0,.2);
  transition: transform .16s ease, box-shadow .16s ease;
}

.material--foliage {
  background: url('./assets/foliage-texture.jpg') center / cover;
}

.material--water {
  background: url('./assets/water-texture-generated.png') center / cover;
}

.material.is-selected {
  transform: scale(1.08);
  box-shadow: 0 0 0 2px #fff, 0 2px 16px rgba(0,0,0,.24);
}

.paint {
  position: relative;
  justify-self: center;
  width: 82px;
  height: 82px;
  padding: 0;
  border: 1px solid rgba(255,255,255,.7);
  border-radius: 50%;
  background: rgba(255,255,255,.18);
  box-shadow: 0 4px 24px rgba(0,0,0,.18);
  backdrop-filter: blur(8px);
  pointer-events: auto;
  touch-action: none;
}

.paint::after {
  content: '';
  position: absolute;
  inset: 11px;
  border-radius: 50%;
  background: #fff;
  transition: transform .14s ease, opacity .14s ease;
}

.paint.is-painting::after { transform: scale(.72); opacity: .82; }

.clear {
  width: 39px;
  height: 39px;
  padding: 0 0 2px;
  border: 1px solid rgba(255,255,255,.58);
  border-radius: 50%;
  background: rgba(0,0,0,.12);
  color: #fff;
  font: 300 25px/1 Arial, sans-serif;
  box-shadow: 0 2px 16px rgba(0,0,0,.16);
  backdrop-filter: blur(8px);
  pointer-events: auto;
}

.actions {
  justify-self: start;
  display: flex;
  gap: 9px;
  align-items: center;
  pointer-events: auto;
}

.capture {
  position: relative;
  width: 39px;
  height: 39px;
  padding: 0;
  border: 1px solid rgba(255,255,255,.58);
  border-radius: 50%;
  background: rgba(0,0,0,.12);
  box-shadow: 0 2px 16px rgba(0,0,0,.16);
  backdrop-filter: blur(8px);
}

.capture::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 12px;
  width: 17px;
  height: 12px;
  border: 1.5px solid #fff;
  border-radius: 3px;
}

.capture::after {
  content: '';
  position: absolute;
  left: 15px;
  top: 15px;
  width: 6px;
  height: 6px;
  border: 1.5px solid #fff;
  border-radius: 50%;
}

@media (min-width: 760px) {
  .interface { padding-left: 30px; padding-right: 30px; }
  .controls { left: 30px; right: 30px; }
}