*, *::before, *::after {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
  --paper: #e9e1d2;
  --paper-deep: #cfc2aa;
  --ink: #121416;
  --stone: #4a4743;
  --stone-dark: #252525;
  --fresh: #a86443;
  --blue: #1668d7;
  --blue-hot: #61dcff;
  --mono: 'Courier New', ui-monospace, monospace;
  --sans: Arial, Helvetica, sans-serif;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--sans);
}

button,
a {
  font: inherit;
}

button {
  cursor: pointer;
}

.page {
  width: 100%;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  background: var(--paper);
}

.top-bar {
  z-index: 30;
}

.excavation-stage {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 74% 24%, rgba(233, 184, 86, .18), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, .22), transparent 46%),
    var(--paper);
}

#excavationCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  outline: 0;
  touch-action: none;
  cursor: grab;
}

#excavationCanvas:active {
  cursor: grabbing;
}

#excavationCanvas:focus-visible {
  outline: 3px solid var(--blue-hot);
  outline-offset: -4px;
}

.material-note {
  position: absolute;
  z-index: 4;
  top: 18px;
  left: 20px;
  display: grid;
  gap: 3px;
  pointer-events: none;
  text-transform: uppercase;
}

.material-note span {
  color: var(--blue);
  font: 700 9px/1 var(--mono);
  letter-spacing: .13em;
}

.material-note strong {
  font: 900 18px/.95 var(--sans);
  letter-spacing: -.03em;
}

.chisel-hint {
  position: absolute;
  z-index: 6;
  left: 50%;
  bottom: 22px;
  margin: 0;
  transform: translateX(-50%);
  padding: 10px 13px;
  border: 2px solid var(--ink);
  color: var(--paper);
  background: var(--ink);
  box-shadow: 5px 5px 0 var(--fresh);
  font: 800 10px/1 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  white-space: nowrap;
  pointer-events: none;
  transition: opacity 140ms ease, transform 140ms ease;
}

.excavation-stage[data-started='true'] .chisel-hint {
  opacity: 0;
  transform: translate(-50%, 8px);
}

.reveal-note {
  position: absolute;
  z-index: 8;
  left: 22px;
  bottom: 22px;
  width: min(410px, calc(100vw - 44px));
  padding: 18px 20px 20px;
  border: 3px solid var(--ink);
  color: var(--ink);
  background: rgba(233, 225, 210, .96);
  box-shadow: 8px 8px 0 var(--blue);
}

.reveal-note[hidden] {
  display: none;
}

.reveal-note > p {
  margin: 0 0 7px;
  color: var(--blue);
  font: 700 9px/1 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.reveal-note h1 {
  margin: 0;
  font: 950 clamp(36px, 5vw, 58px)/.86 var(--sans);
  letter-spacing: -.07em;
  text-transform: uppercase;
}

.reveal-actions {
  margin-top: 17px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.reveal-actions button,
.reveal-actions a,
.info-close {
  min-height: 44px;
  border: 2px solid var(--ink);
  border-radius: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 13px;
  color: var(--ink);
  background: transparent;
  font: 800 9px/1 var(--mono);
  letter-spacing: .1em;
  text-decoration: none;
  text-transform: uppercase;
}

.reveal-actions button {
  color: var(--paper);
  background: var(--blue);
}

.info-overlay {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(18, 20, 22, .84);
  backdrop-filter: blur(9px);
}

.info-overlay[hidden] {
  display: none;
}

.info-modal {
  width: min(500px, 100%);
  padding: 28px;
  border: 3px solid var(--ink);
  background: var(--paper);
  box-shadow: 9px 9px 0 var(--blue);
}

.info-modal__eyebrow {
  margin: 0 0 8px;
  color: var(--blue);
  font: 700 9px/1 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.info-modal h2 {
  margin: 0 0 16px;
  font: 950 46px/.88 var(--sans);
  letter-spacing: -.065em;
  text-transform: uppercase;
}

.info-modal p:not(.info-modal__eyebrow) {
  margin: 10px 0 0;
  font: 700 15px/1.45 var(--sans);
}

.info-close {
  margin-top: 20px;
  color: var(--paper);
  background: var(--ink);
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--blue-hot);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 680px) {
  .material-note {
    top: 12px;
    left: 12px;
  }

  .material-note strong {
    font-size: 15px;
  }

  .chisel-hint {
    bottom: 13px;
    max-width: calc(100vw - 24px);
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 9px;
  }

  .reveal-note {
    right: 12px;
    bottom: 13px;
    left: 12px;
    width: auto;
    padding: 16px;
    box-shadow: 6px 6px 0 var(--blue);
  }

  .reveal-note h1 {
    font-size: 38px;
  }

  .info-modal {
    padding: 22px;
  }

  .info-modal h2 {
    font-size: 38px;
  }
}

@media (hover: none) {
  #excavationCanvas {
    cursor: default;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}