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Add night mode theme with dark palette, stars, and moon #134

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Add night mode theme with dark palette, stars, and moon #134

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148 changes: 141 additions & 7 deletions index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,23 @@
--faint: #d9d9d9;
--paper: #fbfbfa;
--panel: rgba(255, 255, 255, 0.72);
--panel-hover: #fff;
--panel-border-hover: #b8b8b8;
--accent: #111;
--steam: #c9c9c7;
}

:root[data-theme="night"] {
color-scheme: dark;
--ink: #e7e9f0;
--muted: #8a8fa3;
--faint: #2b2f3d;
--paper: #0b0e17;
--panel: rgba(24, 28, 41, 0.72);
--panel-hover: #232838;
--panel-border-hover: #3a4055;
--accent: #c7ccdb;
--steam: #3a4055;
}

* {
Expand All @@ -38,6 +54,9 @@
overflow: hidden;
background: var(--paper);
color: var(--ink);
transition:
background 400ms ease,
color 400ms ease;
font-family:
ui-sans-serif,
-apple-system,
Expand Down Expand Up @@ -127,17 +146,17 @@
.steam {
position: fixed;
z-index: 0;
color: #c9c9c7;
color: var(--steam);
font-size: 18px;
pointer-events: none;
animation: puff 1400ms ease-out forwards;
will-change: transform, opacity;
}

.mute-toggle {
.mute-toggle,
.theme-toggle {
position: fixed;
top: 16px;
right: 16px;
z-index: 10;
display: inline-flex;
width: 38px;
Expand All @@ -157,17 +176,69 @@
transform 150ms ease;
}

.mute-toggle:hover {
background: #fff;
border-color: #b8b8b8;
.mute-toggle {
right: 16px;
}

.theme-toggle {
right: 62px;
}

.mute-toggle:hover,
.theme-toggle:hover {
background: var(--panel-hover);
border-color: var(--panel-border-hover);
transform: translateY(-1px);
}

.mute-toggle:focus-visible {
.mute-toggle:focus-visible,
.theme-toggle:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 3px;
}

.sky {
position: fixed;
inset: 0;
z-index: 0;
pointer-events: none;
opacity: 0;
transition: opacity 600ms ease;
}

:root[data-theme="night"] .sky {
opacity: 1;
}

.moon {
position: absolute;
top: 9vh;
right: 12vw;
font-size: clamp(40px, 6vw, 64px);
line-height: 1;
filter: drop-shadow(0 0 18px rgba(231, 233, 240, 0.35));
}

.star {
position: absolute;
width: 2px;
height: 2px;
border-radius: 50%;
background: #e7e9f0;
animation: twinkle 3s ease-in-out infinite;
}

@keyframes twinkle {
0%,
100% {
opacity: 0.25;
}

50% {
opacity: 1;
}
}

.counter {
position: fixed;
bottom: 16px;
Expand Down Expand Up @@ -238,6 +309,10 @@
display: none;
}

.star {
animation: none;
}

.train.ltr,
.train.rtl {
left: 50%;
Expand Down Expand Up @@ -266,13 +341,27 @@
</head>
<body>
<main id="dispatcher">
<div class="sky" id="sky" aria-hidden="true">
<span class="moon" role="img" aria-label="moon">🌙</span>
</div>

<div class="hero" id="hero">
<div class="hero-inner">
<span class="train-emoji" role="img" aria-label="train">🚂</span>
<span class="tagline">Click anywhere to dispatch a train.</span>
</div>
</div>

<button
class="theme-toggle"
id="theme"
type="button"
aria-label="Switch to night mode"
aria-pressed="false"
>
🌙
</button>

<button
class="mute-toggle"
id="mute"
Expand All @@ -295,9 +384,13 @@
const MIN_DURATION_MS = 4500;
const MAX_DURATION_MS = 7500;

const STAR_COUNT = 40;

const dispatcher = document.querySelector("#dispatcher");
const hero = document.querySelector("#hero");
const sky = document.querySelector("#sky");
const muteButton = document.querySelector("#mute");
const themeButton = document.querySelector("#theme");
const counter = document.querySelector("#counter");
const choo = new Audio("./public/choo-choo.mp3");
choo.preload = "auto";
Expand All @@ -308,11 +401,42 @@
let lastLane = -1;
let lastDirection = "rtl";
let muted = localStorage.getItem("wtc:muted") === "1";
let night = localStorage.getItem("wtc:theme") === "night";

function pick(items) {
return items[Math.floor(Math.random() * items.length)];
}

function buildStars() {
const fragment = document.createDocumentFragment();
for (let i = 0; i < STAR_COUNT; i += 1) {
const star = document.createElement("span");
star.className = "star";
star.style.left = `${Math.random() * 100}vw`;
star.style.top = `${Math.random() * 80}vh`;
star.style.animationDelay = `${Math.random() * 3}s`;
fragment.append(star);
}
sky.append(fragment);
}

function syncThemeButton() {
document.documentElement.setAttribute(
"data-theme",
night ? "night" : "day",
);
themeButton.textContent = night ? "☀️" : "🌙";
themeButton.setAttribute(
"aria-label",
night ? "Switch to day mode" : "Switch to night mode",
);
themeButton.setAttribute("aria-pressed", String(night));
document
.querySelector('meta[name="theme-color"]')
.setAttribute("content", night ? "#0b0e17" : "#ffffff");
localStorage.setItem("wtc:theme", night ? "night" : "day");
}

function syncMuteButton() {
muteButton.textContent = muted ? "🔇" : "🔊";
muteButton.setAttribute("aria-label", muted ? "Unmute" : "Mute");
Expand Down Expand Up @@ -403,6 +527,11 @@
muted = !muted;
syncMuteButton();
});
themeButton.addEventListener("click", (event) => {
event.stopPropagation();
night = !night;
syncThemeButton();
});

window.addEventListener("keydown", (event) => {
if (event.code === "Space" || event.code === "Enter") {
Expand All @@ -411,10 +540,15 @@
} else if (event.key === "m" || event.key === "M") {
muted = !muted;
syncMuteButton();
} else if (event.key === "n" || event.key === "N") {
night = !night;
syncThemeButton();
}
});

buildStars();
syncMuteButton();
syncThemeButton();
updateCounter();
</script>
</body>
Expand Down