:root {
  --ink: #e9e6de;
  --dim: rgba(233, 230, 222, 0.62);
  --faint: rgba(233, 230, 222, 0.28);
  --amber: #f0a43a;
  --red: #d8402c;
  --friend: #6fb7e8;
  --panel: rgba(12, 14, 15, 0.82);
  --face: "Bahnschrift", "DIN Alternate", "Roboto Condensed", "Arial Narrow", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #060708;
  color: var(--ink);
  font-family: var(--face);
  font-stretch: condensed;
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

canvas#view {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  display: block;
}

[hidden] { display: none !important; }

/* ---------------------------------------------------------------- The interface in play */

#hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.75);
}

#vignette {
  position: absolute;
  inset: 0;
  opacity: 0;
  background: radial-gradient(ellipse at center, rgba(120, 0, 0, 0) 42%, rgba(150, 8, 0, 0.55) 78%, rgba(90, 0, 0, 0.9) 100%);
}

#hurt-arc {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 46vh;
  height: 46vh;
  margin: -23vh 0 0 -23vh;
  border-radius: 50%;
  opacity: 0;
  background: conic-gradient(from -24deg, rgba(216, 64, 44, 0) 0deg, rgba(216, 64, 44, 0.9) 24deg, rgba(216, 64, 44, 0) 48deg, rgba(216, 64, 44, 0) 360deg);
  -webkit-mask: radial-gradient(circle, transparent 62%, #000 64%, #000 70%, transparent 72%);
  mask: radial-gradient(circle, transparent 62%, #000 64%, #000 70%, transparent 72%);
}

#compass {
  position: absolute;
  top: 2.4vh;
  left: 50%;
  width: 44vh;
  height: 3.2vh;
  margin-left: -22vh;
  overflow: hidden;
  -webkit-mask: linear-gradient(90deg, transparent, #000 22%, #000 78%, transparent);
  mask: linear-gradient(90deg, transparent, #000 22%, #000 78%, transparent);
}

#compass-strip {
  position: absolute;
  top: 0;
  left: 50%;
  height: 100%;
  white-space: nowrap;
  font-size: 1.5vh;
  letter-spacing: 0.08em;
  color: var(--dim);
}

#compass-strip span {
  position: absolute;
  top: 0.6vh;
  width: 6vh;
  margin-left: -3vh;
  text-align: center;
}

#compass-strip span.major { color: var(--ink); font-weight: 600; font-size: 1.7vh; top: 0.45vh; }

#compass-tick {
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 2px;
  height: 0.8vh;
  margin-left: -1px;
  background: var(--amber);
}

#objective {
  position: absolute;
  top: 3vh;
  left: 3.2vh;
  max-width: 44vh;
  font-size: 2vh;
  letter-spacing: 0.04em;
  line-height: 1.3;
  display: flex;
  gap: 1.1vh;
  align-items: flex-start;
  transition: opacity 0.4s;
}

#objective.changed { animation: objective-in 1.6s ease-out; }

@keyframes objective-in {
  0% { opacity: 0; transform: translateX(-1.5vh); color: var(--amber); }
  25% { opacity: 1; transform: none; color: var(--amber); }
  100% { color: var(--ink); }
}

.diamond {
  flex: none;
  width: 1.15vh;
  height: 1.15vh;
  margin-top: 0.75vh;
  background: var(--amber);
  transform: rotate(45deg);
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.6);
}

#crosshair, #hit-marker {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
}

#crosshair i {
  position: absolute;
  background: rgba(240, 238, 230, 0.92);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.38);
}

#crosshair .up, #crosshair .down { width: 2px; height: 0.95vh; left: -1px; }
#crosshair .left, #crosshair .right { height: 2px; width: 0.95vh; top: -1px; }
#crosshair .dot { width: 2px; height: 2px; left: -1px; top: -1px; }

#hit-marker { opacity: 0; }

#hit-marker i {
  position: absolute;
  width: 1.3vh;
  height: 2px;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4);
  transform-origin: 0 50%;
}

#hit-marker i:nth-child(1) { transform: rotate(45deg) translateX(0.9vh); }
#hit-marker i:nth-child(2) { transform: rotate(135deg) translateX(0.9vh); }
#hit-marker i:nth-child(3) { transform: rotate(225deg) translateX(0.9vh); }
#hit-marker i:nth-child(4) { transform: rotate(315deg) translateX(0.9vh); }
#hit-marker.kill i { background: var(--red); }

#goal {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5vh;
  font-size: 1.45vh;
  letter-spacing: 0.06em;
  color: var(--amber);
}

#goal .diamond { margin: 0; width: 1.3vh; height: 1.3vh; background: transparent; border: 2px solid var(--amber); }

#friends i {
  position: absolute;
  width: 0;
  height: 0;
  margin: -0.5vh 0 0 -0.55vh;
  border-left: 0.55vh solid transparent;
  border-right: 0.55vh solid transparent;
  border-top: 0.8vh solid var(--friend);
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.7));
}

#prompt {
  position: absolute;
  left: 50%;
  top: 61%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 1.2vh;
  font-size: 2vh;
  letter-spacing: 0.05em;
}

#prompt svg { position: absolute; left: -0.55vh; top: 50%; width: 4.4vh; height: 4.4vh; margin-top: -2.2vh; transform: rotate(-90deg); }
#prompt circle { fill: none; stroke-width: 2.5; }
#prompt .track { stroke: rgba(255, 255, 255, 0.18); }
#prompt-ring { stroke: var(--amber); stroke-dasharray: 119.4; stroke-dashoffset: 119.4; }

.key, kbd {
  display: inline-block;
  min-width: 3.3vh;
  padding: 0.35vh 0.8vh;
  border: 1px solid var(--dim);
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.45);
  font: inherit;
  font-size: 1.7vh;
  text-align: center;
}

/* The place and the hour, shown once as the mission opens. */
#location {
  position: absolute;
  left: 6vh;
  bottom: 22vh;
  opacity: 0;
  pointer-events: none;
}
#location.shown { animation: location 8.5s ease-in-out 0.8s both; }
#location .place { font-size: 3.6vh; font-weight: 600; letter-spacing: 0.2em; }
#location .when { margin-top: 0.8vh; font-size: 1.6vh; letter-spacing: 0.3em; color: var(--amber); }
#location .place::after {
  content: "";
  display: block;
  width: 9vh;
  height: 2px;
  margin-top: 1.1vh;
  background: var(--amber);
}
@keyframes location {
  0% { opacity: 0; transform: translateX(-1.5vh); }
  12% { opacity: 1; transform: none; }
  80% { opacity: 1; }
  100% { opacity: 0; }
}

#subtitle {
  position: absolute;
  left: 50%;
  bottom: 13vh;
  max-width: 78vh;
  transform: translateX(-50%);
  padding: 0.9vh 1.6vh;
  background: rgba(6, 7, 8, 0.6);
  font-size: 2.1vh;
  line-height: 1.35;
  text-align: center;
  font-stretch: normal;
}

#subtitle-speaker { color: var(--amber); letter-spacing: 0.1em; margin-right: 1vh; font-weight: 600; }

#vitals {
  position: absolute;
  left: 3.2vh;
  bottom: 3.4vh;
  width: 26vh;
}

#health {
  height: 0.9vh;
  background: rgba(0, 0, 0, 0.5);
  outline: 1px solid var(--faint);
  -webkit-mask: repeating-linear-gradient(90deg, #000 0, #000 2.4vh, transparent 2.4vh, transparent 2.6vh);
  mask: repeating-linear-gradient(90deg, #000 0, #000 2.4vh, transparent 2.4vh, transparent 2.6vh);
}

#health-fill { height: 100%; width: 100%; background: var(--ink); transition: width 0.15s linear, background 0.3s; }
#health-fill.low { background: var(--red); }
#health-label { margin-top: 0.7vh; font-size: 1.3vh; letter-spacing: 0.22em; color: var(--dim); }

#arms {
  position: absolute;
  right: 3.4vh;
  bottom: 3vh;
  text-align: right;
}

#ammo-rounds { font-size: 6.4vh; font-weight: 600; line-height: 1; letter-spacing: -0.01em; }
#ammo-rounds.low { color: var(--red); }
#ammo-reserve { margin-left: 0.9vh; font-size: 2.3vh; color: var(--dim); }
#weapon-name { margin-top: 0.5vh; font-size: 1.4vh; letter-spacing: 0.22em; color: var(--dim); }

#grenades { margin-top: 0.9vh; display: flex; justify-content: flex-end; gap: 0.6vh; }
#grenades i { width: 0.9vh; height: 1.5vh; border-radius: 0.35vh; background: var(--ink); opacity: 0.9; }

#arms-hint { margin-top: 0.8vh; min-height: 1.8vh; font-size: 1.5vh; letter-spacing: 0.14em; color: var(--amber); }

/* ---------------------------------------------------------------- Screens */

.screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 30% 50%, rgba(6, 7, 8, 0.25), rgba(6, 7, 8, 0.82));
  z-index: 5;
}

#title { justify-content: flex-start; background: linear-gradient(90deg, rgba(6, 7, 8, 0.92) 0%, rgba(6, 7, 8, 0.66) 36%, rgba(6, 7, 8, 0.05) 72%); }

.title-block { margin-left: 9vw; max-width: 60vh; }

.eyebrow { font-size: 1.5vh; letter-spacing: 0.34em; color: var(--amber); }

h1 {
  margin: 1.4vh 0 0.6vh -0.6vh;
  font-size: 15vh;
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: 0.02em;
}

.mission-name { font-size: 2vh; letter-spacing: 0.3em; color: var(--dim); }

#loading { margin-top: 6vh; width: 44vh; }
#loading-bar { height: 3px; background: var(--faint); }
#loading-fill { height: 100%; width: 0; background: var(--amber); transition: width 0.25s; }
#loading-text { margin-top: 1.1vh; font-size: 1.5vh; letter-spacing: 0.16em; color: var(--dim); }

.menu { margin-top: 5vh; display: flex; flex-direction: column; gap: 1.1vh; align-items: flex-start; }

.menu button {
  padding: 1.1vh 2.4vh 1.1vh 1.4vh;
  min-width: 30vh;
  border: 0;
  border-left: 3px solid transparent;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 2.6vh;
  letter-spacing: 0.14em;
  text-align: left;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, padding 0.12s;
}

.menu button:hover, .menu button:focus-visible {
  outline: none;
  border-left-color: var(--amber);
  background: linear-gradient(90deg, rgba(240, 164, 58, 0.2), rgba(240, 164, 58, 0));
  padding-left: 2.2vh;
}

.footnote { position: absolute; left: 9vw; bottom: 3.5vh; font-size: 1.3vh; letter-spacing: 0.18em; color: var(--faint); }

.panel {
  min-width: 46vh;
  padding: 4.5vh 5vh;
  background: var(--panel);
  border-top: 3px solid var(--amber);
  backdrop-filter: blur(6px);
}

.panel.wide { min-width: 62vh; }
.panel h2 { margin: 0; font-size: 4.6vh; letter-spacing: 0.12em; }
.panel h2.red { color: var(--red); }
.panel p { max-width: 54vh; font-size: 2vh; line-height: 1.5; color: var(--dim); font-stretch: normal; }

.panel label {
  display: grid;
  grid-template-columns: 24vh 1fr 6vh;
  align-items: center;
  gap: 1.6vh;
  margin-top: 2.2vh;
  font-size: 1.9vh;
  letter-spacing: 0.06em;
}

.panel label.check { grid-template-columns: auto 1fr; justify-content: start; }
.panel output { font-size: 1.6vh; color: var(--dim); text-align: right; }
.panel input[type="range"] { accent-color: var(--amber); width: 100%; }
.panel input[type="checkbox"] { accent-color: var(--amber); width: 2vh; height: 2vh; }

.panel select {
  grid-column: 2 / 4;
  padding: 0.7vh 1vh;
  border: 1px solid var(--faint);
  background: #0e1011;
  color: var(--ink);
  font: inherit;
  font-size: 1.8vh;
}

.panel table { margin-top: 2.5vh; border-collapse: collapse; font-size: 1.9vh; }
.panel td { padding: 0.9vh 2.2vh 0.9vh 0; color: var(--dim); }
.panel td:nth-child(odd) { color: var(--ink); white-space: nowrap; }
kbd { margin-right: 0.4vh; }

.ending { background: rgba(6, 7, 8, 0.72); animation: fade-in 1.2s ease-out; }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

#error {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  max-width: 70vh;
  padding: 3vh 4vh;
  background: #1a0d0b;
  border-top: 3px solid var(--red);
  font-size: 2vh;
  line-height: 1.5;
  font-stretch: normal;
  z-index: 10;
  white-space: pre-wrap;
}

#fps {
  position: fixed;
  right: 1vh;
  top: 1vh;
  font-size: 1.4vh;
  color: var(--dim);
  z-index: 4;
  font-variant-numeric: tabular-nums;
}

/* What the player did, on the last screen. */
#tally { margin: 2.4vh 0 0.6vh; display: grid; grid-template-columns: repeat(5, auto); gap: 0 3.2vh; justify-content: start; }
#tally div { border-left: 2px solid var(--amber); padding-left: 1.2vh; }
#tally dt { font-size: 1.3vh; letter-spacing: 0.22em; text-transform: uppercase; color: var(--dim); }
#tally dd { margin: 0.4vh 0 0; font-size: 3.4vh; font-weight: 600; }