<!DOCTYPE html>
<html>
<head>
<title>Scary elevator</title>
</head>
<body>

<div class="game" id="game">
  <div class="topbar">
    <span>BLACKTHORN HOTEL</span>
    <span class="status" id="status">ELEVATOR READY</span>
  </div>

<div class="display">
      <span class="display-label">FLOOR</span>
      <span class="floor-number" id="floorNumber">G</span>
      <span class="direction" id="direction">◆</span>
    </div>

<div class="control-panel">
      <div class="panel-title">OTIS · 1926</div>
      <button class="floor-btn" data-floor="3">3</button>
      <button class="floor-btn" data-floor="2">2</button>
      <button class="floor-btn" data-floor="1">1</button>
      <button class="floor-btn" data-floor="G">G</button>
      <div class="panel-divider"></div>
      <button class="door-btn" id="closeBtn">◀▶</button>
      <div class="emergency">ALARM</div>
      <div class="alarm-light"></div>
    </div>

<div class="message">
    <p id="message">The hotel has been abandoned for 73 years.</p>
    <span id="hint">Choose a floor to begin.</span>
  </div>

<div class="bottom">
    <span>EST. 1926</span>
    <button id="soundBtn">♪ SOUND OFF</button>
    <span>NO EXIT</span>
  </div>
</div>

</body>
</html>

@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Playfair+Display:wght@400;700&display=swap');

* { box-sizing: border-box; }

body {
  margin: 0;
  background: #080909;
}

.game {
  --gold: #b99b65;
  --metal: #343735;
  --dark: #111614;
  min-height: 720px;
  background: radial-gradient(
    ellipse at 50% 45%,
    #252c28,
    #0b100e 75%
  );
  color: #d4c6a6;
  font-family: 'DM Mono', monospace;
  position: relative;
  overflow: hidden;
}

.topbar {
  display: flex;
  justify-content: space-between;
  padding: 20px 30px;
  border-bottom: 1px solid #ffffff15;
  font-size: 10px;
  letter-spacing: 3px;
  color: #b9a882;
}

.status {
  color: #6e8c78;
  letter-spacing: 1px;
}

.elevator {
  position: relative;
  width: min(580px, 96%);
  height: 510px;
  margin: 15px auto 0;
  background:
    repeating-linear-gradient(
      90deg,
      #222a26 0px,
      #2a302b 3px,
      #1b221e 6px
    );
  border: 12px solid #343b34;
  border-bottom: 0;
  box-shadow:
    inset 0 0 90px #000,
    0 0 90px #0008;
}

.ceiling-light {
  position: absolute;
  top: 0;
  left: 20%;
  width: 60%;
  height: 12px;
  background: #cbbd8b;
  box-shadow: 0 10px 80px #ffdd8855;
  opacity: .7;
  animation: flicker 8s infinite;
}

.display {
  position: absolute;
  top: 25px;
  left: 50%;
  transform: translateX(-50%);
  width: 110px;
  height: 75px;
  background: #090c0a;
  border: 5px solid #685d43;
  box-shadow: 0 0 0 2px #24251f, inset 0 0 20px #000;
  text-align: center;
  z-index: 6;
}

.display-label {
  display: block;
  font-size: 8px;
  letter-spacing: 3px;
  padding-top: 5px;
  color: #8e8267;
}

.floor-number {
  font-size: 37px;
  color: #e6ad58;
  text-shadow: 0 0 15px #e6a14d88;
}

.direction {
  position: absolute;
  right: 10px;
  top: 30px;
  color: #ba8d49;
  font-size: 12px;
}

.door-frame {
  position: absolute;
  left: 10%;
  top: 115px;
  width: 65%;
  height: 370px;
  overflow: hidden;
  border: 9px solid #5a5443;
  background: #050505;
  box-shadow:
    0 0 0 3px #171b17,
    inset 0 0 40px #000;
}

.outside {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at 50% 20%,
    #363c36,
    #090b0b 75%
  );
  overflow: hidden;
}

.hall-light {
  position: absolute;
  top: 0;
  left: 30%;
  width: 40%;
  height: 5px;
  background: #c5b994;
  box-shadow: 0 0 65px 35px #e2d4a422;
}

.hall-floor {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 42%;
  background:
    repeating-linear-gradient(
      90deg,
      transparent 0 38px,
      #ffffff08 39px 40px
    ),
    linear-gradient(#252720, #0b0d0c);
  clip-path: polygon(25% 0, 75% 0, 100% 100%, 0 100%);
}

.hall-content {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.door {
  position: absolute;
  top: 0;
  height: 100%;
  width: 50.5%;
  background:
    repeating-linear-gradient(
      90deg,
      #393e39 0px,
      #484c45 3px,
      #30352f 8px,
      #252b27 13px
    );
  z-index: 4;
  transition: transform 2.2s cubic-bezier(.65,0,.25,1);
  box-shadow: inset 0 0 35px #0008;
}

.door::after {
  content: "";
  position: absolute;
  inset: 18px;
  border: 2px solid #847b5b44;
}

.door-left {
  left: 0;
  border-right: 3px solid #0d0f0c;
}

.door-right {
  right: 0;
  border-left: 3px solid #0d0f0c;
}

.door-seam {
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  background: #0a0b09;
  z-index: 5;
  transition: opacity .3s;
}

.open .door-left { transform: translateX(-100%); }
.open .door-right { transform: translateX(100%); }
.open .door-seam { opacity: 0; }

.control-panel {
  position: absolute;
  top: 130px;
  right: 2%;
  width: 18%;
  padding: 12px 8px;
  background: linear-gradient(110deg,#353b34,#151a16);
  border: 3px solid #71664d;
  box-shadow: inset 0 0 15px #000;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  z-index: 6;
}

.panel-title {
  grid-column: span 2;
  text-align: center;
  font-size: 8px;
  color: #b5a27b;
  margin-bottom: 12px;
}

.floor-btn,
.door-btn {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 2px solid #716b56;
  background: radial-gradient(circle at 35% 25%,#444a43,#161b17);
  color: #d7c9a8;
  font: 13px 'DM Mono', monospace;
  cursor: pointer;
  box-shadow: 0 3px 5px #0008;
}

.floor-btn:hover,
.door-btn:hover {
  border-color: #e2bb74;
}

.floor-btn.active {
  color: #ffbd5d;
  box-shadow: 0 0 15px #ff9d3655;
  border-color: #e2a454;
}

.panel-divider {
  grid-column: span 2;
  height: 1px;
  background: #84765b44;
  margin: 8px 0;
}

.door-btn {
  grid-column: span 2;
  width: 38px;
  margin: auto;
  font-size: 10px;
}

.emergency {
  grid-column: span 2;
  text-align: center;
  font-size: 8px;
  color: #91665a;
  margin-top: 12px;
}

.alarm-light {
  grid-column: span 2;
  width: 9px;
  height: 9px;
  background: #581d17;
  border-radius: 50%;
  margin: auto;
}

.elevator-floor {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 20px;
  background: linear-gradient(#5a5746,#151a17);
  z-index: 6;
}

.message {
  text-align: center;
  padding: 20px;
  min-height: 90px;
}

.message p {
  font: italic 17px 'Playfair Display', Georgia, serif;
  color: #c4b59c;
  margin: 0 0 9px;
}

.message span {
  color: #7b8279;
  font-size: 10px;
  letter-spacing: 2px;
}

.bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 580px;
  margin: 0 auto;
  padding: 0 15px 20px;
  color: #686e63;
  font-size: 9px;
  letter-spacing: 2px;
}

.bottom button {
  background: transparent;
  border: 1px solid #5e5b4a;
  color: #b9a882;
  padding: 10px 15px;
  font: 10px 'DM Mono', monospace;
  cursor: pointer;
}

/* Floor 1: ghost */
.ghost {
  position: relative;
  width: 75px;
  height: 175px;
  background: linear-gradient(#d4d9cfbb,#a5b4a122,transparent);
  border-radius: 50% 50% 20% 20%;
  filter: blur(5px);
  animation: ghostFloat 3s ease-in-out infinite;
}

.ghost::before,
.ghost::after {
  content: "";
  position: absolute;
  top: 45px;
  width: 12px;
  height: 25px;
  border-radius: 50%;
  background: #101814;
  box-shadow: 0 0 15px #101814;
}

.ghost::before { left: 18px; }
.ghost::after { right: 18px; }

/* Floor 2: shadow person */
.shadow-person {
  position: relative;
  width: 75px;
  height: 210px;
  background: #010302;
  border-radius: 45% 45% 10% 10%;
  box-shadow: 0 0 45px #000;
  animation: shadowApproach 7s ease-in forwards;
}

.shadow-person::before {
  content: "";
  position: absolute;
  width: 65px;
  height: 70px;
  border-radius: 50%;
  background: #010302;
  top: -42px;
  left: 5px;
}

.shadow-eyes {
  position: absolute;
  top: -12px;
  left: 17px;
  width: 9px;
  height: 5px;
  background: #e3291c;
  border-radius: 50%;
  box-shadow: 31px 0 #e3291c,0 0 12px red,31px 0 12px red;
}

/* Floor 3: endless corridor */
.corridor {
  position: absolute;
  inset: 0;
  background: repeating-radial-gradient(
    ellipse at 50% 50%,
    #111a17 0px,
    #030605 28px,
    #2b342a 30px,
    #050907 52px
  );
  animation: corridorMove 5s linear infinite;
}

.corridor::after {
  content: "DON'T LOOK BACK";
  position: absolute;
  top: 50%;
  width: 100%;
  text-align: center;
  color: #b52b20;
  font: bold 14px Georgia,serif;
  letter-spacing: 3px;
  text-shadow: 0 0 20px red;
}

.game.shaking .elevator {
  animation: shake .12s infinite;
}

.game.blackout .ceiling-light {
  opacity: .05;
}

.game.blackout .outside {
  filter: brightness(.2);
}

@keyframes flicker {
  0%, 92%, 96%, 100% { opacity: .7; }
  93%, 95% { opacity: .05; }
}

@keyframes ghostFloat {
  0%, 100% { transform: translateY(8px); opacity: .5; }
  50% { transform: translateY(-12px); opacity: .9; }
}

@keyframes shadowApproach {
  from { transform: scale(.35); }
  to { transform: scale(1.5); }
}

@keyframes corridorMove {
  to { background-size: 160% 160%; }
}

@keyframes shake {
  0% { transform: translate(0,0); }
  25% { transform: translate(2px,-1px); }
  50% { transform: translate(-2px,2px); }
  75% { transform: translate(1px,1px); }
}

@media(max-width: 500px) {
  .game { min-height: 650px; }
  .elevator { height: 440px; }
  .door-frame { height: 310px; }
  .control-panel { top: 120px; }
  .panel-title { font-size: 6px; }
  .floor-btn { font-size: 11px; }
  .topbar { padding: 16px; font-size: 8px; }
}

@media(prefers-reduced-motion:reduce) {
  .game *, .game *::before, .game *::after {
    animation: none !important;
    transition-duration: .01ms !important;
  }
}

const game = document.getElementById("game");
const doorFrame = document.querySelector(".door-frame");
const floorNumber = document.getElementById("floorNumber");
const direction = document.getElementById("direction");
const status = document.getElementById("status");
const message = document.getElementById("message");
const hint = document.getElementById("hint");
const hallContent = document.getElementById("hallContent");
const buttons = document.querySelectorAll(".floor-btn");
const closeBtn = document.getElementById("closeBtn");
const soundBtn = document.getElementById("soundBtn");

let currentFloor = "G";
let busy = false;
let soundOn = false;
let audioCtx = null;

const floorData = {
  "G": {
    message: "The lobby is empty. The doors are locked.",
    hint: "There is no way out."
  },
  "1": {
    message: "A woman has been waiting here since 1953.",
    hint: "She doesn't seem to have feet."
  },
  "2": {
    message: "Something is standing at the end of the hall.",
    hint: "It's getting closer."
  },
  "3": {
    message: "This floor doesn't exist on the building plans.",
    hint: "DON'T LOOK BACK."
  }
};

function wait(ms) {
  return new Promise(function(resolve) {
    setTimeout(resolve, ms);
  });
}

function tone(frequency, duration, type, volume) {
  if (!soundOn) return;

try {
    if (!audioCtx) {
      audioCtx = new (
        window.AudioContext || window.webkitAudioContext
      )();
    }

if (audioCtx.state === "suspended") {
      audioCtx.resume();
    }

const osc = audioCtx.createOscillator();
    const gain = audioCtx.createGain();
    const now = audioCtx.currentTime;

osc.type = type || "sine";
    osc.frequency.setValueAtTime(frequency, now);

gain.gain.setValueAtTime(volume || .04, now);
    gain.gain.exponentialRampToValueAtTime(
      .001, now + duration
    );

osc.connect(gain);
    gain.connect(audioCtx.destination);
    osc.start(now);
    osc.stop(now + duration);
  } catch (e) {
    console.warn("Audio unavailable", e);
  }
}

function setMessage(text, subtext) {
  message.textContent = text;
  hint.textContent = subtext;
}

function clearHall() {
  hallContent.replaceChildren();
}

function createHall(floor) {
  clearHall();

if (floor === "1") {
    const ghost = document.createElement("div");
    ghost.className = "ghost";
    hallContent.appendChild(ghost);
  }

if (floor === "2") {
    const figure = document.createElement("div");
    figure.className = "shadow-person";

const eyes = document.createElement("div");
    eyes.className = "shadow-eyes";
    figure.appendChild(eyes);

hallContent.appendChild(figure);
  }

if (floor === "3") {
    const corridor = document.createElement("div");
    corridor.className = "corridor";
    hallContent.appendChild(corridor);
  }
}

async function travel(target) {
  if (busy) return;
  if (target === currentFloor && doorFrame.classList.contains("open")) {
    return;
  }

busy = true;
  doorFrame.classList.remove("open");
  game.classList.remove("blackout");

buttons.forEach(function(btn) {
    btn.classList.toggle(
      "active",
      btn.dataset.floor === target
    );
  });

status.textContent = "DOORS CLOSING";
  setMessage("The doors are closing...", "Please stand clear.");

tone(230, .6, "triangle", .05);
  await wait(2400);

game.classList.add("shaking");
  status.textContent = "MOVING";
  setMessage("The elevator begins to move.", "The machinery groans.");

const from = currentFloor === "G" ? 0 : Number(currentFloor);
  const to = target === "G" ? 0 : Number(target);
  const step = to >= from ? 1 : -1;

direction.textContent = step > 0 ? "▲" : "▼";

if (from !== to) {
    for (let f = from + step;
      step > 0 ? f <= to : f >= to;
      f += step) {
      await wait(750);
      floorNumber.textContent = f === 0 ? "G" : String(f);
      tone(90 + f * 25, .25, "sawtooth", .025);
    }
  } else {
    await wait(900);
  }

currentFloor = target;
  game.classList.remove("shaking");
  direction.textContent = "◆";

status.textContent = "ARRIVED";
  tone(460, .8, "sine", .05);

await wait(650);

createHall(target);
  doorFrame.classList.add("open");

setMessage(
    floorData[target].message,
    floorData[target].hint
  );

status.textContent = "DOORS OPEN";
  busy = false;

if (target === "2") {
    await wait(3500);
    if (currentFloor === "2" &&
        doorFrame.classList.contains("open")) {
      game.classList.add("blackout");
      tone(55, 2, "sawtooth", .09);
      setMessage(
        "The lights have gone out.",
        "Something is breathing."
      );
    }
  }
}

buttons.forEach(function(button) {
  button.addEventListener("click", function() {
    travel(button.dataset.floor);
  });
});

closeBtn.addEventListener("click", async function() {
  if (busy || !doorFrame.classList.contains("open")) return;

busy = true;
  doorFrame.classList.remove("open");
  status.textContent = "DOORS CLOSING";
  tone(180, .5, "triangle", .04);

await wait(2300);
  status.textContent = "SELECT FLOOR";
  setMessage(
    "The doors are closed.",
    "Choose your next destination."
  );
  busy = false;
});

soundBtn.addEventListener("click", function() {
  soundOn = !soundOn;
  soundBtn.textContent = soundOn
    ? "♪ SOUND ON"
    : "♪ SOUND OFF";

if (soundOn) {
    tone(440, .3, "sine", .03);
  }
});

// Initial lobby
buttons.forEach(function(btn) {
  btn.classList.toggle("active", btn.dataset.floor === "G");
});

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