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2.0
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ac585701a3
| Author | SHA1 | Date | |
|---|---|---|---|
| ac585701a3 | |||
| 002fbb8b6c | |||
| e6da9c8c98 | |||
| d4765b3788 |
@@ -1,7 +1,7 @@
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{
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||||
"name": "computing-box",
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"name": "Computing:Box",
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"type": "module",
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"version": "0.0.1",
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"version": "2.0.0 Alpha",
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"scripts": {
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"dev": "astro dev",
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"build": "astro build",
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@@ -1,137 +0,0 @@
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/* ---------- DSEG7 font ---------- */
|
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/* Put your font file here:
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public/fonts/DSEG7Classic-Regular.woff2
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*/
|
||||
@font-face {
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||||
font-family: "DSEG7ClassicRegular";
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||||
src: url("/fonts/DSEG7Classic-Regular.woff2") format("woff2");
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font-display: swap;
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}
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||||
|
||||
/* ---------- Layout ---------- */
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||||
.tool-shell {
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min-height: 100vh;
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display: grid;
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place-items: center;
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padding: 1rem;
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||||
background: #0b0f14;
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||||
color: #e7eaf0;
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||||
font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
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||||
}
|
||||
|
||||
.tool-card {
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width: min(1100px, 100%);
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background: #111824;
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border: 1px solid rgba(255,255,255,0.08);
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border-radius: 18px;
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padding: 1rem;
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||||
}
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||||
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.tool-header h1 { margin: 0 0 .25rem 0; font-size: 1.4rem; }
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.tool-header p { margin: 0 0 1rem 0; opacity: .85; }
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.display-grid {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: .75rem;
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margin-bottom: .75rem;
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}
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.display-box {
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background: #0b0f14;
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border: 1px solid rgba(255,255,255,0.08);
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border-radius: 14px;
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padding: .75rem;
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}
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.display-label { font-size: .9rem; opacity: .8; margin-bottom: .25rem; }
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.sevenseg {
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font-family: "DSEG7ClassicRegular", monospace;
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font-size: clamp(2rem, 4vw, 3.2rem);
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letter-spacing: 0.08em;
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line-height: 1.1;
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}
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/* Buttons under denary/binary (your request) */
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.actions {
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display: flex;
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flex-wrap: wrap;
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gap: .5rem;
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margin-bottom: 1rem;
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}
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/* ---------- Simple MD3-ish buttons ---------- */
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.md3-btn {
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border: 1px solid rgba(255,255,255,0.16);
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background: rgba(255,255,255,0.06);
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color: #e7eaf0;
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padding: .6rem .9rem;
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border-radius: 999px;
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cursor: pointer;
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font-weight: 600;
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}
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.md3-btn:hover { background: rgba(255,255,255,0.10); }
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.md3-btn--tonal { background: rgba(255,255,255,0.10); }
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/* ---------- Switches row ---------- */
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.switch-row {
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display: grid;
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grid-template-columns: repeat(8, minmax(90px, 1fr));
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gap: .75rem;
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}
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.switch-col {
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display: grid;
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justify-items: center;
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gap: .35rem;
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}
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.bit-label { opacity: .85; font-weight: 600; }
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/* ---------- “Light switch” rocker ---------- */
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.rocker {
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position: relative;
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width: 70px;
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height: 46px;
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display: inline-block;
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user-select: none;
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}
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.rocker input {
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opacity: 0;
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width: 0;
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height: 0;
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}
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.rocker-body {
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position: absolute;
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inset: 0;
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border-radius: 12px;
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background: #1a2331;
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border: 1px solid rgba(255,255,255,0.14);
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box-shadow: inset 0 0 0 2px rgba(0,0,0,0.35);
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}
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/* the “toggle” */
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.rocker-body::after {
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content: "";
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position: absolute;
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left: 6px;
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top: 6px;
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width: 58px;
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height: 18px;
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border-radius: 10px;
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background: rgba(255,255,255,0.20);
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transition: transform 180ms ease, background 180ms ease;
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}
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/* ON position */
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.rocker input:checked + .rocker-body::after {
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transform: translateY(16px);
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background: rgba(255,255,255,0.55);
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}
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@media (max-width: 900px) {
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.switch-row { grid-template-columns: repeat(4, minmax(90px, 1fr)); }
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}
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@@ -1,9 +0,0 @@
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<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 128 128">
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<path d="M50.4 78.5a75.1 75.1 0 0 0-28.5 6.9l24.2-65.7c.7-2 1.9-3.2 3.4-3.2h29c1.5 0 2.7 1.2 3.4 3.2l24.2 65.7s-11.6-7-28.5-7L67 45.5c-.4-1.7-1.6-2.8-2.9-2.8-1.3 0-2.5 1.1-2.9 2.7L50.4 78.5Zm-1.1 28.2Zm-4.2-20.2c-2 6.6-.6 15.8 4.2 20.2a17.5 17.5 0 0 1 .2-.7 5.5 5.5 0 0 1 5.7-4.5c2.8.1 4.3 1.5 4.7 4.7.2 1.1.2 2.3.2 3.5v.4c0 2.7.7 5.2 2.2 7.4a13 13 0 0 0 5.7 4.9v-.3l-.2-.3c-1.8-5.6-.5-9.5 4.4-12.8l1.5-1a73 73 0 0 0 3.2-2.2 16 16 0 0 0 6.8-11.4c.3-2 .1-4-.6-6l-.8.6-1.6 1a37 37 0 0 1-22.4 2.7c-5-.7-9.7-2-13.2-6.2Z" />
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<style>
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||||
path { fill: #000; }
|
||||
@media (prefers-color-scheme: dark) {
|
||||
path { fill: #FFF; }
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||||
}
|
||||
</style>
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</svg>
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|
Before Width: | Height: | Size: 749 B |
@@ -1,115 +0,0 @@
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// Browser-only script. Safe because it's loaded via <script> (not server-imported).
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const BIT_COUNT = 8; // unsigned page = 8 bits
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const bitValues = [128, 64, 32, 16, 8, 4, 2, 1];
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const elDenary = document.getElementById("denaryNumber");
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const elBinary = document.getElementById("binaryNumber");
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const elSwitches = document.getElementById("bitSwitches");
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const btnCustomDenary = document.getElementById("btnCustomDenary");
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const btnCustomBinary = document.getElementById("btnCustomBinary");
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const btnReset = document.getElementById("btnReset");
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let bits = new Array(BIT_COUNT).fill(false);
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function renderSwitches() {
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elSwitches.innerHTML = "";
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bitValues.forEach((value, index) => {
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const id = `bit-${value}`;
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const wrapper = document.createElement("div");
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wrapper.className = "switch-col";
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const labelTop = document.createElement("div");
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labelTop.className = "bit-label";
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labelTop.textContent = value;
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const label = document.createElement("label");
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label.className = "rocker";
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label.setAttribute("for", id);
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const input = document.createElement("input");
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input.type = "checkbox";
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input.id = id;
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input.checked = bits[index];
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||||
|
||||
input.addEventListener("change", () => {
|
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bits[index] = input.checked;
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||||
updateNumbers();
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||||
});
|
||||
|
||||
const span = document.createElement("span");
|
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span.className = "rocker-body";
|
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span.setAttribute("aria-hidden", "true");
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||||
|
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label.appendChild(input);
|
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label.appendChild(span);
|
||||
|
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wrapper.appendChild(labelTop);
|
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wrapper.appendChild(label);
|
||||
|
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elSwitches.appendChild(wrapper);
|
||||
});
|
||||
}
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||||
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function updateNumbers() {
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const binary = bits.map(b => (b ? "1" : "0")).join("");
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const denary = bits.reduce((acc, b, i) => acc + (b ? bitValues[i] : 0), 0);
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elBinary.textContent = binary;
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elDenary.textContent = denary.toString();
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}
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function resetAll() {
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bits = new Array(BIT_COUNT).fill(false);
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renderSwitches();
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updateNumbers();
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}
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||||
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||||
function requestCustomDenary() {
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let input = prompt(`Enter a denary number (0 to 255):`);
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if (input === null) return;
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||||
|
||||
const n = Number.parseInt(input, 10);
|
||||
if (Number.isNaN(n) || n < 0 || n > 255) {
|
||||
alert("Invalid input. Enter a number from 0 to 255.");
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||||
return;
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}
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||||
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let remaining = n;
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||||
bits = bitValues.map(v => {
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if (remaining >= v) {
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remaining -= v;
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return true;
|
||||
}
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||||
return false;
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||||
});
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||||
|
||||
renderSwitches();
|
||||
updateNumbers();
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||||
}
|
||||
|
||||
function requestCustomBinary() {
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||||
let input = prompt(`Enter an ${BIT_COUNT}-bit binary number (e.g. 01010101):`);
|
||||
if (input === null) return;
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||||
|
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input = input.trim();
|
||||
const re = new RegExp(`^[01]{${BIT_COUNT}}$`);
|
||||
if (!re.test(input)) {
|
||||
alert(`Invalid input. Enter exactly ${BIT_COUNT} digits using only 0 or 1.`);
|
||||
return;
|
||||
}
|
||||
|
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bits = input.split("").map(c => c === "1");
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renderSwitches();
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||||
updateNumbers();
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||||
}
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||||
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btnCustomDenary?.addEventListener("click", requestCustomDenary);
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||||
btnCustomBinary?.addEventListener("click", requestCustomBinary);
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||||
btnReset?.addEventListener("click", resetAll);
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||||
|
||||
renderSwitches();
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||||
updateNumbers();
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||||
@@ -1,72 +0,0 @@
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// public/js/tools/unsigned-binary.js
|
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// Lightweight: no frameworks. Works on weak devices.
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const BIT_COUNT = 8;
|
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const MAX_DENARY = 255;
|
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let bits = new Array(BIT_COUNT).fill(false);
|
||||
function bitsToBinaryString(){
|
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return bits.map(b => (b ? "1" : "0")).join("");
|
||||
}
|
||||
function bitsToDenary(){
|
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// MSB on the left: 128..1
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const weights = [128,64,32,16,8,4,2,1];
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return bits.reduce((acc, b, i) => acc + (b ? weights[i] : 0), 0);
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}
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function render(){
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const grid = document.getElementById("bitGrid");
|
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grid.innerHTML = "";
|
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const weights = [128,64,32,16,8,4,2,1];
|
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bits.forEach((on, i) => {
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const btn = document.createElement("button");
|
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btn.type = "button";
|
||||
btn.className = "btn";
|
||||
btn.style.width = "100%";
|
||||
btn.style.justifyContent = "space-between";
|
||||
btn.setAttribute("aria-pressed", on ? "true" : "false");
|
||||
btn.innerHTML = `<span>${weights[i]}</span><b>${on ? "1" : "0"}</b>`;
|
||||
btn.addEventListener("click", () => {
|
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bits[i] = !bits[i];
|
||||
update();
|
||||
});
|
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grid.appendChild(btn);
|
||||
});
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||||
}
|
||||
function update(){
|
||||
document.getElementById("binaryNumber").innerText = bitsToBinaryString();
|
||||
document.getElementById("denaryNumber").innerText = bitsToDenary();
|
||||
render();
|
||||
}
|
||||
function requestBinary(){
|
||||
let v;
|
||||
do{
|
||||
v = prompt("Enter an 8-bit binary value (8 digits, only 0 or 1):", bitsToBinaryString());
|
||||
if(v === null) return;
|
||||
v = v.trim();
|
||||
}while(!/^[01]{8}$/.test(v));
|
||||
bits = v.split("").map(ch => ch === "1");
|
||||
update();
|
||||
}
|
||||
function requestDenary(){
|
||||
let v;
|
||||
do{
|
||||
v = prompt("Enter a denary value (0 to 255):", String(bitsToDenary()));
|
||||
if(v === null) return;
|
||||
v = Number(v);
|
||||
}while(!Number.isInteger(v) || v < 0 || v > MAX_DENARY);
|
||||
// set bits from MSB to LSB
|
||||
const weights = [128,64,32,16,8,4,2,1];
|
||||
bits = weights.map(w => {
|
||||
if(v >= w){ v -= w; return true; }
|
||||
return false;
|
||||
});
|
||||
update();
|
||||
}
|
||||
function reset(){
|
||||
bits = new Array(BIT_COUNT).fill(false);
|
||||
update();
|
||||
}
|
||||
document.addEventListener("DOMContentLoaded", () => {
|
||||
document.getElementById("btnCustomBinary")?.addEventListener("click", requestBinary);
|
||||
document.getElementById("btnCustomDenary")?.addEventListener("click", requestDenary);
|
||||
document.getElementById("btnReset")?.addEventListener("click", reset);
|
||||
update();
|
||||
});
|
||||
@@ -1,96 +0,0 @@
|
||||
/* src/styles/md3-tokens.css */
|
||||
/* MD3-inspired tokens tuned for education: high readability, clear contrast, calm surfaces */
|
||||
:root{
|
||||
/* Typography */
|
||||
--font-sans: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
|
||||
--font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
|
||||
/* Spacing + shape */
|
||||
--radius-1: 10px;
|
||||
--radius-2: 16px;
|
||||
--radius-3: 22px;
|
||||
--shadow-1: 0 1px 2px rgba(0,0,0,.08), 0 2px 8px rgba(0,0,0,.06);
|
||||
/* Color roles (keep simple) */
|
||||
--md-surface: #ffffff;
|
||||
--md-surface-2: #f6f7fb;
|
||||
--md-on-surface: #111318;
|
||||
--md-primary: #2f6fed; /* calm blue */
|
||||
--md-on-primary: #ffffff;
|
||||
--md-secondary: #5a5f72; /* muted */
|
||||
--md-on-secondary: #ffffff;
|
||||
--md-tertiary: #0f766e; /* teal for "practical" tools */
|
||||
--md-on-tertiary: #ffffff;
|
||||
--md-outline: #d7dbe7;
|
||||
--md-success: #1a7f37;
|
||||
--md-warning: #b54708;
|
||||
--md-danger: #b42318;
|
||||
/* Focus ring for accessibility */
|
||||
--md-focus: 0 0 0 3px rgba(47,111,237,.28);
|
||||
}
|
||||
@media (prefers-color-scheme: dark){
|
||||
:root{
|
||||
--md-surface: #0b0e14;
|
||||
--md-surface-2: #121725;
|
||||
--md-on-surface: #e8eaf2;
|
||||
--md-primary: #9bb6ff;
|
||||
--md-on-primary: #0b0e14;
|
||||
--md-secondary: #b8bccd;
|
||||
--md-on-secondary: #0b0e14;
|
||||
--md-tertiary: #4fd1c5;
|
||||
--md-on-tertiary: #0b0e14;
|
||||
--md-outline: #2b3244;
|
||||
--md-focus: 0 0 0 3px rgba(155,182,255,.25);
|
||||
}
|
||||
}
|
||||
|
||||
/* src/styles/base.css */
|
||||
@import "./md3-tokens.css";
|
||||
html, body{ height:100%; }
|
||||
body{
|
||||
margin:0;
|
||||
font-family: var(--font-sans);
|
||||
background: var(--md-surface-2);
|
||||
color: var(--md-on-surface);
|
||||
}
|
||||
a{ color: var(--md-primary); text-decoration: none; }
|
||||
a:hover{ text-decoration: underline; }
|
||||
.container{
|
||||
max-width: 1100px;
|
||||
margin: 0 auto;
|
||||
padding: 16px;
|
||||
}
|
||||
.card{
|
||||
background: var(--md-surface);
|
||||
border: 1px solid var(--md-outline);
|
||||
border-radius: var(--radius-2);
|
||||
box-shadow: var(--shadow-1);
|
||||
padding: 16px;
|
||||
}
|
||||
.btn{
|
||||
display:inline-flex;
|
||||
gap:8px;
|
||||
align-items:center;
|
||||
justify-content:center;
|
||||
border-radius: 999px;
|
||||
border: 1px solid var(--md-outline);
|
||||
background: var(--md-surface);
|
||||
color: var(--md-on-surface);
|
||||
padding: 10px 14px;
|
||||
font-weight: 600;
|
||||
cursor: pointer;
|
||||
}
|
||||
.btn:hover{ filter: brightness(0.98); }
|
||||
.btn:focus{ outline:none; box-shadow: var(--md-focus); }
|
||||
.btn-primary{
|
||||
background: var(--md-primary);
|
||||
color: var(--md-on-primary);
|
||||
border-color: transparent;
|
||||
}
|
||||
.badge{
|
||||
display:inline-block;
|
||||
padding: 2px 10px;
|
||||
border-radius: 999px;
|
||||
font-size: 12px;
|
||||
border: 1px solid var(--md-outline);
|
||||
background: var(--md-surface-2);
|
||||
}
|
||||
code, pre{ font-family: var(--font-mono); }
|
||||
29
src/components/Footer.astro
Normal file
29
src/components/Footer.astro
Normal file
@@ -0,0 +1,29 @@
|
||||
<footer class="siteFooter">
|
||||
<div class="inner">
|
||||
<div class="title">Computer Science Concept Simulators</div>
|
||||
<div class="meta">
|
||||
© 2025 Computing:Box · Created with 💗 by Mr Lyall<br />
|
||||
Powered by ADCM Networks
|
||||
</div>
|
||||
</div>
|
||||
</footer>
|
||||
|
||||
<style>
|
||||
.siteFooter{
|
||||
border-top: 1px solid rgba(255,255,255,.10);
|
||||
background: rgba(0,0,0,.10);
|
||||
}
|
||||
.inner{
|
||||
max-width:1200px;
|
||||
margin:0 auto;
|
||||
padding: 18px 20px;
|
||||
color: rgba(255,255,255,.65);
|
||||
font-size: 12px;
|
||||
line-height: 1.6;
|
||||
}
|
||||
.title{
|
||||
color: rgba(255,255,255,.80);
|
||||
font-weight: 800;
|
||||
margin-bottom: 6px;
|
||||
}
|
||||
</style>
|
||||
57
src/components/Header.astro
Normal file
57
src/components/Header.astro
Normal file
@@ -0,0 +1,57 @@
|
||||
<header class="siteHeader">
|
||||
<div class="inner">
|
||||
<div class="brand">
|
||||
<a href="/">Computing:Box</a>
|
||||
</div>
|
||||
|
||||
<nav class="nav">
|
||||
<a href="/binary">Binary</a>
|
||||
<a href="/hexadecimal">Hexadecimal</a>
|
||||
<a href="/hex-colours">Hex Colours</a>
|
||||
<a href="/logic-gates">Logic Gates</a>
|
||||
<a href="/about">About</a>
|
||||
</nav>
|
||||
</div>
|
||||
</header>
|
||||
|
||||
<style>
|
||||
.siteHeader{
|
||||
height: 64px;
|
||||
display:flex;
|
||||
align-items:center;
|
||||
border-bottom: 1px solid rgba(255,255,255,.10);
|
||||
background: rgba(0,0,0,.10);
|
||||
backdrop-filter: blur(8px);
|
||||
}
|
||||
.inner{
|
||||
max-width: 1200px;
|
||||
width: 100%;
|
||||
margin: 0 auto;
|
||||
padding: 0 20px;
|
||||
display:flex;
|
||||
align-items:center;
|
||||
justify-content: space-between;
|
||||
gap: 18px;
|
||||
}
|
||||
.brand a{
|
||||
color:#fff;
|
||||
text-decoration:none;
|
||||
font-weight: 800;
|
||||
letter-spacing: .02em;
|
||||
}
|
||||
.nav{
|
||||
display:flex;
|
||||
gap: 16px;
|
||||
flex-wrap: wrap;
|
||||
}
|
||||
.nav a{
|
||||
color: rgba(255,255,255,.78);
|
||||
text-decoration:none;
|
||||
font-weight: 700;
|
||||
font-size: 13px;
|
||||
letter-spacing:.02em;
|
||||
}
|
||||
.nav a:hover{
|
||||
color:#fff;
|
||||
}
|
||||
</style>
|
||||
@@ -1,381 +0,0 @@
|
||||
---
|
||||
const { mode = "unsigned", defaultBits = 8 } = Astro.props;
|
||||
|
||||
// For unsigned: min 1 bit, max 16 bits (tweak if you want)
|
||||
const minBits = 4;
|
||||
const maxBits = 16;
|
||||
const initialBits = Math.min(Math.max(defaultBits, minBits), maxBits);
|
||||
---
|
||||
|
||||
<section class="binary-sim" data-mode={mode} data-bits={initialBits}>
|
||||
<div class="top">
|
||||
<div class="left-brand">
|
||||
<!-- Replace with your logo/img -->
|
||||
<div class="brand-box" aria-hidden="true">Computing:Box</div>
|
||||
</div>
|
||||
|
||||
<div class="display" aria-live="polite">
|
||||
<div class="label">DENARY</div>
|
||||
<div id="denaryNumber" class="value">0</div>
|
||||
|
||||
<div class="label">BINARY</div>
|
||||
<div id="binaryNumber" class="value mono">00000000</div>
|
||||
</div>
|
||||
|
||||
<div class="actions">
|
||||
<button class="btn" type="button" data-action="custom-binary">Custom Binary</button>
|
||||
<button class="btn" type="button" data-action="custom-denary">Custom Denary</button>
|
||||
<button class="btn" type="button" data-action="shift-left">Left Shift</button>
|
||||
<button class="btn" type="button" data-action="shift-right">Right Shift</button>
|
||||
|
||||
<div class="bits-control">
|
||||
<div class="bits-title">Bits</div>
|
||||
<div class="bits-buttons">
|
||||
<button class="btn small" type="button" data-action="bits-minus" aria-label="Decrease bits">−</button>
|
||||
<span id="bitsCount" class="bits-count">{initialBits}</span>
|
||||
<button class="btn small" type="button" data-action="bits-plus" aria-label="Increase bits">+</button>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div id="bitsRow" class="bits-row" aria-label="Binary bit switches"></div>
|
||||
</section>
|
||||
|
||||
<script is:inline>
|
||||
(() => {
|
||||
const root = document.currentScript.closest(".binary-sim");
|
||||
const bitsRow = root.querySelector("#bitsRow");
|
||||
const binaryEl = root.querySelector("#binaryNumber");
|
||||
const denaryEl = root.querySelector("#denaryNumber");
|
||||
const bitsCountEl = root.querySelector("#bitsCount");
|
||||
|
||||
let bitCount = parseInt(root.dataset.bits || "8", 10);
|
||||
const minBits = 4;
|
||||
const maxBits = 16;
|
||||
|
||||
// state: array of 0/1, MSB at index 0
|
||||
let bits = new Array(bitCount).fill(0);
|
||||
|
||||
function placeValues(n) {
|
||||
// unsigned place values: [2^(n-1), ..., 2^0]
|
||||
return Array.from({ length: n }, (_, i) => 2 ** (n - 1 - i));
|
||||
}
|
||||
|
||||
function bitsToDenary(bitsArr) {
|
||||
const pv = placeValues(bitsArr.length);
|
||||
return bitsArr.reduce((acc, b, i) => acc + (b ? pv[i] : 0), 0);
|
||||
}
|
||||
|
||||
function render() {
|
||||
const binaryStr = bits.join("");
|
||||
binaryEl.textContent = binaryStr;
|
||||
denaryEl.textContent = String(bitsToDenary(bits));
|
||||
bitsCountEl.textContent = String(bitCount);
|
||||
|
||||
const pv = placeValues(bitCount);
|
||||
|
||||
bitsRow.innerHTML = pv.map((value, i) => {
|
||||
const id = `bit_${bitCount}_${i}`;
|
||||
const checked = bits[i] === 1 ? "checked" : "";
|
||||
return `
|
||||
<div class="bit-col">
|
||||
<div class="bulb ${bits[i] ? "on" : "off"}" aria-hidden="true"></div>
|
||||
<div class="place">${value}</div>
|
||||
|
||||
<label class="switch" for="${id}">
|
||||
<input id="${id}" type="checkbox" ${checked} data-index="${i}">
|
||||
<span class="slider" aria-hidden="true"></span>
|
||||
<span class="sr-only">Toggle bit value ${value}</span>
|
||||
</label>
|
||||
</div>
|
||||
`;
|
||||
}).join("");
|
||||
}
|
||||
|
||||
function setBitsFromBinaryString(str) {
|
||||
// allow shorter input; pad left
|
||||
const clean = (str || "").trim();
|
||||
if (!/^[01]+$/.test(clean) || clean.length > bitCount) return false;
|
||||
const padded = clean.padStart(bitCount, "0");
|
||||
bits = padded.split("").map(c => c === "1" ? 1 : 0);
|
||||
return true;
|
||||
}
|
||||
|
||||
function setBitsFromDenary(num) {
|
||||
if (!Number.isInteger(num)) return false;
|
||||
const max = (2 ** bitCount) - 1;
|
||||
if (num < 0 || num > max) return false;
|
||||
|
||||
const bin = num.toString(2).padStart(bitCount, "0");
|
||||
bits = bin.split("").map(c => c === "1" ? 1 : 0);
|
||||
return true;
|
||||
}
|
||||
|
||||
function shiftLeft() {
|
||||
bits = bits.slice(1).concat(0);
|
||||
}
|
||||
|
||||
function shiftRight() {
|
||||
bits = [0].concat(bits.slice(0, -1));
|
||||
}
|
||||
|
||||
function resizeBits(newCount) {
|
||||
const clamped = Math.max(minBits, Math.min(maxBits, newCount));
|
||||
if (clamped === bitCount) return;
|
||||
|
||||
// keep value as best as possible: preserve LSBs when resizing
|
||||
const currentBinary = bits.join("");
|
||||
bitCount = clamped;
|
||||
bits = new Array(bitCount).fill(0);
|
||||
|
||||
const take = currentBinary.slice(-bitCount);
|
||||
setBitsFromBinaryString(take);
|
||||
}
|
||||
|
||||
// Switch input handler
|
||||
bitsRow.addEventListener("change", (e) => {
|
||||
const input = e.target;
|
||||
if (!(input instanceof HTMLInputElement)) return;
|
||||
const idx = parseInt(input.dataset.index || "-1", 10);
|
||||
if (idx < 0) return;
|
||||
bits[idx] = input.checked ? 1 : 0;
|
||||
render();
|
||||
});
|
||||
|
||||
// Button actions
|
||||
root.querySelector(".actions").addEventListener("click", (e) => {
|
||||
const btn = e.target.closest("button[data-action]");
|
||||
if (!btn) return;
|
||||
|
||||
const action = btn.dataset.action;
|
||||
|
||||
if (action === "custom-binary") {
|
||||
const entered = prompt(`Enter a ${bitCount}-bit binary value (0s and 1s):`, bits.join(""));
|
||||
if (entered === null) return;
|
||||
if (!setBitsFromBinaryString(entered)) {
|
||||
alert(`Invalid binary. Use only 0 and 1, up to ${bitCount} digits.`);
|
||||
return;
|
||||
}
|
||||
render();
|
||||
}
|
||||
|
||||
if (action === "custom-denary") {
|
||||
const max = (2 ** bitCount) - 1;
|
||||
const entered = prompt(`Enter a denary value (0 to ${max}):`, String(bitsToDenary(bits)));
|
||||
if (entered === null) return;
|
||||
const num = Number.parseInt(entered, 10);
|
||||
if (!setBitsFromDenary(num)) {
|
||||
alert(`Invalid denary. Enter a whole number from 0 to ${max}.`);
|
||||
return;
|
||||
}
|
||||
render();
|
||||
}
|
||||
|
||||
if (action === "shift-left") { shiftLeft(); render(); }
|
||||
if (action === "shift-right") { shiftRight(); render(); }
|
||||
|
||||
if (action === "bits-minus") { resizeBits(bitCount - 1); render(); }
|
||||
if (action === "bits-plus") { resizeBits(bitCount + 1); render(); }
|
||||
});
|
||||
|
||||
// initial
|
||||
render();
|
||||
})();
|
||||
</script>
|
||||
|
||||
<style>
|
||||
/* Layout */
|
||||
.binary-sim {
|
||||
padding: 2rem 1rem 3rem;
|
||||
}
|
||||
|
||||
.top {
|
||||
display: grid;
|
||||
grid-template-columns: 260px 1fr 220px;
|
||||
gap: 1.5rem;
|
||||
align-items: start;
|
||||
}
|
||||
|
||||
@media (max-width: 980px) {
|
||||
.top {
|
||||
grid-template-columns: 1fr;
|
||||
}
|
||||
.actions {
|
||||
display: grid;
|
||||
grid-template-columns: 1fr 1fr;
|
||||
}
|
||||
}
|
||||
|
||||
/* Brand placeholder */
|
||||
.brand-box {
|
||||
width: 180px;
|
||||
height: 180px;
|
||||
border-radius: 12px;
|
||||
display: grid;
|
||||
place-items: center;
|
||||
font-weight: 700;
|
||||
opacity: 0.9;
|
||||
border: 1px solid rgba(255,255,255,0.08);
|
||||
background: rgba(255,255,255,0.04);
|
||||
}
|
||||
|
||||
/* Display */
|
||||
.display {
|
||||
text-align: center;
|
||||
padding: 1rem;
|
||||
}
|
||||
|
||||
.label {
|
||||
letter-spacing: 0.12em;
|
||||
opacity: 0.85;
|
||||
margin-top: 0.5rem;
|
||||
}
|
||||
|
||||
.value {
|
||||
font-size: 3rem;
|
||||
line-height: 1.1;
|
||||
margin: 0.25rem 0 0.75rem;
|
||||
font-weight: 700;
|
||||
}
|
||||
|
||||
.mono {
|
||||
font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
|
||||
}
|
||||
|
||||
/* Buttons */
|
||||
.actions {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
gap: 0.75rem;
|
||||
}
|
||||
|
||||
.btn {
|
||||
border: 0;
|
||||
border-radius: 10px;
|
||||
padding: 0.75rem 1rem;
|
||||
font-weight: 600;
|
||||
cursor: pointer;
|
||||
background: rgba(255,255,255,0.08);
|
||||
color: inherit;
|
||||
}
|
||||
|
||||
.btn:hover { background: rgba(255,255,255,0.12); }
|
||||
|
||||
.btn.small {
|
||||
padding: 0.45rem 0.75rem;
|
||||
border-radius: 10px;
|
||||
}
|
||||
|
||||
.bits-control {
|
||||
margin-top: 0.25rem;
|
||||
padding-top: 0.5rem;
|
||||
border-top: 1px solid rgba(255,255,255,0.08);
|
||||
}
|
||||
|
||||
.bits-title { opacity: 0.8; margin-bottom: 0.35rem; }
|
||||
|
||||
.bits-buttons {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
gap: 0.5rem;
|
||||
}
|
||||
|
||||
.bits-count {
|
||||
min-width: 2ch;
|
||||
text-align: center;
|
||||
font-weight: 700;
|
||||
}
|
||||
|
||||
/* Bits row */
|
||||
.bits-row {
|
||||
margin-top: 2rem;
|
||||
display: grid;
|
||||
grid-template-columns: repeat(auto-fit, minmax(88px, 1fr));
|
||||
gap: 1.25rem;
|
||||
align-items: end;
|
||||
}
|
||||
|
||||
.bit-col {
|
||||
text-align: center;
|
||||
padding: 0.5rem 0.25rem;
|
||||
}
|
||||
|
||||
.place {
|
||||
margin: 0.5rem 0 0.5rem;
|
||||
font-size: 2rem;
|
||||
font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
|
||||
}
|
||||
|
||||
/* Bulb */
|
||||
.bulb {
|
||||
width: 26px;
|
||||
height: 26px;
|
||||
margin: 0 auto 0.25rem;
|
||||
border-radius: 50%;
|
||||
border: 1px solid rgba(255,255,255,0.15);
|
||||
}
|
||||
.bulb.off { opacity: 0.15; }
|
||||
.bulb.on { opacity: 1; }
|
||||
|
||||
/* Light switch (accessible checkbox) */
|
||||
.switch {
|
||||
display: inline-flex;
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
width: 64px;
|
||||
height: 36px;
|
||||
position: relative;
|
||||
}
|
||||
|
||||
.switch input {
|
||||
position: absolute;
|
||||
opacity: 0;
|
||||
width: 1px;
|
||||
height: 1px;
|
||||
}
|
||||
|
||||
.slider {
|
||||
width: 64px;
|
||||
height: 36px;
|
||||
border-radius: 999px;
|
||||
background: rgba(255,255,255,0.10);
|
||||
border: 1px solid rgba(255,255,255,0.14);
|
||||
position: relative;
|
||||
transition: transform 120ms ease, background 120ms ease;
|
||||
}
|
||||
|
||||
.slider::after {
|
||||
content: "";
|
||||
position: absolute;
|
||||
top: 4px;
|
||||
left: 4px;
|
||||
width: 28px;
|
||||
height: 28px;
|
||||
border-radius: 999px;
|
||||
background: rgba(255,255,255,0.85);
|
||||
transition: transform 120ms ease;
|
||||
}
|
||||
|
||||
.switch input:checked + .slider {
|
||||
background: rgba(255,255,255,0.18);
|
||||
}
|
||||
|
||||
.switch input:checked + .slider::after {
|
||||
transform: translateX(28px);
|
||||
}
|
||||
|
||||
/* focus */
|
||||
.switch input:focus-visible + .slider {
|
||||
outline: 3px solid rgba(255,255,255,0.35);
|
||||
outline-offset: 2px;
|
||||
}
|
||||
|
||||
.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;
|
||||
}
|
||||
</style>
|
||||
@@ -1,17 +1,41 @@
|
||||
---
|
||||
// src/layouts/BaseLayout.astro
|
||||
const { title = "Computing:Box" } = Astro.props;
|
||||
---
|
||||
|
||||
<!doctype html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="utf-8" />
|
||||
<meta name="viewport" content="width=device-width,initial-scale=1" />
|
||||
<title>{title}</title>
|
||||
<link rel="stylesheet" href="/styles.css" />
|
||||
<link rel="stylesheet" href="/fonts/DSEG7Classic-Regular.css">
|
||||
<link rel="stylesheet" href="/src/styles/site.css" />
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<header class="site-header">
|
||||
<div class="site-header__inner">
|
||||
<div class="brand">Computing:Box</div>
|
||||
|
||||
<nav class="nav">
|
||||
<a class="nav__link" href="/binary">Binary</a>
|
||||
<a class="nav__link" href="/hexadecimal">Hexadecimal</a>
|
||||
<a class="nav__link" href="/hex-colours">Hex Colours</a>
|
||||
<a class="nav__link" href="/logic-gates">Logic Gates</a>
|
||||
<a class="nav__link" href="/about">About</a>
|
||||
</nav>
|
||||
</div>
|
||||
</header>
|
||||
|
||||
<main class="site-main">
|
||||
<slot />
|
||||
</main>
|
||||
|
||||
<footer class="site-footer">
|
||||
<div class="site-footer__inner">
|
||||
<div>Computer Science Concept Simulators</div>
|
||||
<div>© 2025 Computing:Box · Created with 💜 by Mr Lyall</div>
|
||||
<div>Powered by ADCM Networks</div>
|
||||
</div>
|
||||
</footer>
|
||||
</body>
|
||||
</html>
|
||||
@@ -1,642 +1,106 @@
|
||||
---
|
||||
/**
|
||||
* src/pages/binary.astro
|
||||
* Single-file binary simulator (Unsigned + Two's complement)
|
||||
* Bit width: 4..64
|
||||
*
|
||||
* Requires:
|
||||
* public/fonts/DSEG7Classic-Regular.woff
|
||||
* public/fonts/DSEG7Classic-Regular.ttf
|
||||
*/
|
||||
import BaseLayout from "../layouts/BaseLayout.astro";
|
||||
import "../styles/binary.css";
|
||||
|
||||
// ✅ Correct Astro v5 way: bundle script from src/ and get its final URL
|
||||
import binaryScriptUrl from "../scripts/binary.js?url";
|
||||
---
|
||||
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="utf-8" />
|
||||
<meta name="viewport" content="width=device-width,initial-scale=1" />
|
||||
<title>Binary | Computing:Box</title>
|
||||
|
||||
<style>
|
||||
:root{
|
||||
--bg: #1f2027;
|
||||
--panel: #22242d;
|
||||
--panel2:#262833;
|
||||
--text: #e8e8ee;
|
||||
--muted: #a9acb8;
|
||||
--accent: #33ff7a;
|
||||
--accent-dim: rgba(51,255,122,.15);
|
||||
--line: rgba(255,255,255,.12);
|
||||
}
|
||||
|
||||
@font-face{
|
||||
font-family: "DSEG7ClassicRegular";
|
||||
src:
|
||||
url("/fonts/DSEG7Classic-Regular.woff") format("woff"),
|
||||
url("/fonts/DSEG7Classic-Regular.ttf") format("truetype");
|
||||
font-weight: 400;
|
||||
font-style: normal;
|
||||
font-display: swap;
|
||||
}
|
||||
|
||||
body{
|
||||
margin:0;
|
||||
font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
|
||||
background: var(--bg);
|
||||
color: var(--text);
|
||||
}
|
||||
|
||||
.wrap{
|
||||
max-width: 1200px;
|
||||
margin: 0 auto;
|
||||
padding: 32px 20px 60px;
|
||||
}
|
||||
|
||||
/* Layout: readout left, settings panel right (like your screenshot) */
|
||||
.layout{
|
||||
display:grid;
|
||||
grid-template-columns: 1fr 360px;
|
||||
gap: 22px;
|
||||
align-items:start;
|
||||
}
|
||||
|
||||
.readout{
|
||||
text-align:center;
|
||||
padding: 10px 10px 0;
|
||||
}
|
||||
|
||||
.label{
|
||||
letter-spacing: .18em;
|
||||
font-weight: 700;
|
||||
color: var(--muted);
|
||||
text-transform: uppercase;
|
||||
font-size: 16px;
|
||||
margin-top: 8px;
|
||||
}
|
||||
|
||||
.num{
|
||||
font-family: "DSEG7ClassicRegular", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
|
||||
font-weight: 400;
|
||||
color: var(--accent);
|
||||
text-shadow: 0 0 18px var(--accent-dim);
|
||||
}
|
||||
|
||||
.value{
|
||||
font-size: 70px;
|
||||
line-height: 1.0;
|
||||
margin: 6px 0 16px;
|
||||
}
|
||||
|
||||
.binary{
|
||||
font-size: 54px;
|
||||
letter-spacing: .12em;
|
||||
word-break: break-all;
|
||||
}
|
||||
|
||||
/* Buttons under readout (as requested) */
|
||||
.controls{
|
||||
margin-top: 16px;
|
||||
display:flex;
|
||||
gap: 12px;
|
||||
justify-content:center;
|
||||
flex-wrap:wrap;
|
||||
}
|
||||
|
||||
.btn{
|
||||
background: rgba(255,255,255,.06);
|
||||
border: 1px solid rgba(255,255,255,.14);
|
||||
color: #fff;
|
||||
padding: 12px 14px;
|
||||
border-radius: 12px;
|
||||
font-weight: 700;
|
||||
cursor: pointer;
|
||||
min-width: 160px;
|
||||
}
|
||||
.btn:active{ transform: translateY(1px); }
|
||||
|
||||
/* Settings panel cards */
|
||||
.panel{
|
||||
background: rgba(255,255,255,.04);
|
||||
border: 1px solid rgba(255,255,255,.10);
|
||||
border-radius: 14px;
|
||||
padding: 16px 16px 14px;
|
||||
margin-bottom: 14px;
|
||||
}
|
||||
.panelTitle{
|
||||
font-size: 12px;
|
||||
letter-spacing: .16em;
|
||||
text-transform: uppercase;
|
||||
color: var(--muted);
|
||||
font-weight: 800;
|
||||
margin-bottom: 10px;
|
||||
}
|
||||
.panelRow{
|
||||
display:flex;
|
||||
align-items:center;
|
||||
justify-content:space-between;
|
||||
gap: 12px;
|
||||
}
|
||||
.hint{
|
||||
color: var(--muted);
|
||||
font-size: 12px;
|
||||
margin-top: 10px;
|
||||
line-height: 1.35;
|
||||
}
|
||||
|
||||
/* Reusable toggle switch (for MODE and for each BIT) */
|
||||
.switch{
|
||||
position: relative;
|
||||
width: 56px;
|
||||
height: 34px;
|
||||
display:inline-block;
|
||||
flex: 0 0 auto;
|
||||
}
|
||||
.switch input{
|
||||
opacity:0;
|
||||
width:0;
|
||||
height:0;
|
||||
}
|
||||
.slider{
|
||||
position:absolute;
|
||||
inset:0;
|
||||
background: rgba(255,255,255,.10);
|
||||
border: 1px solid rgba(255,255,255,.14);
|
||||
border-radius: 999px;
|
||||
transition: .18s ease;
|
||||
}
|
||||
.slider::before{
|
||||
content:"";
|
||||
position:absolute;
|
||||
height: 28px;
|
||||
width: 28px;
|
||||
left: 3px;
|
||||
top: 2px;
|
||||
background: rgba(255,255,255,.92);
|
||||
border-radius: 50%;
|
||||
transition: .18s ease;
|
||||
}
|
||||
.switch input:checked + .slider{
|
||||
background: rgba(51,255,122,.20);
|
||||
border-color: rgba(51,255,122,.55);
|
||||
}
|
||||
.switch input:checked + .slider::before{
|
||||
transform: translateX(22px);
|
||||
background: var(--accent);
|
||||
}
|
||||
|
||||
/* Bit width controls */
|
||||
.bwControls{
|
||||
display:grid;
|
||||
grid-template-columns: 44px 1fr 44px;
|
||||
gap: 10px;
|
||||
align-items:center;
|
||||
margin-top: 8px;
|
||||
}
|
||||
.bwBtn{
|
||||
width: 44px;
|
||||
height: 44px;
|
||||
border-radius: 12px;
|
||||
border: 1px solid rgba(255,255,255,.14);
|
||||
background: rgba(255,255,255,.06);
|
||||
color: #fff;
|
||||
font-weight: 900;
|
||||
cursor: pointer;
|
||||
}
|
||||
.bwBtn:active{ transform: translateY(1px); }
|
||||
|
||||
.bwInput{
|
||||
display:flex;
|
||||
align-items:center;
|
||||
justify-content:space-between;
|
||||
gap: 12px;
|
||||
background: rgba(255,255,255,.05);
|
||||
border: 1px solid rgba(255,255,255,.12);
|
||||
border-radius: 12px;
|
||||
padding: 10px 12px;
|
||||
}
|
||||
.bwLabel{
|
||||
color: var(--muted);
|
||||
font-size: 12px;
|
||||
letter-spacing: .14em;
|
||||
text-transform: uppercase;
|
||||
font-weight: 800;
|
||||
}
|
||||
.bwField{
|
||||
width: 100px;
|
||||
text-align:right;
|
||||
background: transparent;
|
||||
border: none;
|
||||
outline: none;
|
||||
color: var(--accent);
|
||||
font-family: "DSEG7ClassicRegular", ui-monospace, monospace;
|
||||
font-size: 26px;
|
||||
padding: 0;
|
||||
}
|
||||
.bwField::-webkit-outer-spin-button,
|
||||
.bwField::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
|
||||
.bwField[type=number] { -moz-appearance: textfield; }
|
||||
|
||||
/* Bits grid */
|
||||
.bits{
|
||||
margin-top: 34px;
|
||||
padding-top: 26px;
|
||||
border-top: 1px solid var(--line);
|
||||
display:grid;
|
||||
gap: 18px;
|
||||
align-items:end;
|
||||
text-align:center;
|
||||
}
|
||||
|
||||
.bit{
|
||||
display:flex;
|
||||
flex-direction:column;
|
||||
align-items:center;
|
||||
gap: 10px;
|
||||
padding: 8px 4px;
|
||||
}
|
||||
|
||||
.bitVal{
|
||||
font-size: 34px;
|
||||
color: var(--text);
|
||||
opacity: .95;
|
||||
}
|
||||
|
||||
/* Bulb (must come back!) */
|
||||
.bulb{
|
||||
width: 22px;
|
||||
height: 22px;
|
||||
border-radius: 50%;
|
||||
background: rgba(255,255,255,.08);
|
||||
border: 1px solid rgba(255,255,255,.12);
|
||||
box-shadow: none;
|
||||
margin-bottom: 6px;
|
||||
}
|
||||
.bulb.on{
|
||||
background: #ffd86b;
|
||||
border-color: rgba(255,216,107,.7);
|
||||
box-shadow: 0 0 18px rgba(255,216,107,.6);
|
||||
}
|
||||
|
||||
/* Responsive */
|
||||
@media (max-width: 1000px){
|
||||
.layout{ grid-template-columns: 1fr; }
|
||||
.value{ font-size: 60px; }
|
||||
.binary{ font-size: 44px; }
|
||||
}
|
||||
@media (max-width: 900px){
|
||||
.value{ font-size: 54px; }
|
||||
.binary{ font-size: 36px; }
|
||||
.btn{ min-width: 140px; }
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<main class="wrap">
|
||||
<section class="layout">
|
||||
<!-- LEFT: readout + buttons -->
|
||||
<BaseLayout title="Binary | Computing:Box">
|
||||
<section class="binary-wrap">
|
||||
<div class="topGrid">
|
||||
<!-- LEFT: readout + main buttons -->
|
||||
<div>
|
||||
<div class="readout">
|
||||
<div class="label">Denary</div>
|
||||
<div id="denaryNumber" class="value num">0</div>
|
||||
<div id="denaryNumber" class="num denary">0</div>
|
||||
|
||||
<div class="label">Binary</div>
|
||||
<div id="binaryNumber" class="value binary num">00000000</div>
|
||||
<pre id="binaryNumber" class="num binary" aria-label="Binary value">0</pre>
|
||||
|
||||
<div class="controls">
|
||||
<button class="btn" id="btnCustomBinary" type="button">Custom Binary</button>
|
||||
<button class="btn" id="btnCustomDenary" type="button">Custom Denary</button>
|
||||
<!-- ORANGE: custom + shifts on separate lines -->
|
||||
<div class="controls controls--twoRows">
|
||||
<div class="controlsRow">
|
||||
<button class="btn btn--green" id="btnCustomBinary" type="button">Custom Binary</button>
|
||||
<button class="btn btn--green" id="btnCustomDenary" type="button">Custom Denary</button>
|
||||
</div>
|
||||
<div class="controlsRow">
|
||||
<button class="btn" id="btnShiftLeft" type="button">Left Shift</button>
|
||||
<button class="btn" id="btnShiftRight" type="button">Right Shift</button>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- Bits grid (built by JS so bit-width 4..64 works) -->
|
||||
<section id="bitsGrid" class="bits" aria-label="Bit switches"></section>
|
||||
</div>
|
||||
|
||||
<!-- RIGHT: settings panel -->
|
||||
<aside>
|
||||
<div class="panel">
|
||||
<div class="panelTitle">Mode</div>
|
||||
<div class="panelRow">
|
||||
<span style="font-weight:800;">Unsigned</span>
|
||||
<div class="divider"></div>
|
||||
|
||||
<!-- MODE TOGGLE uses SAME switch style -->
|
||||
<label class="switch" aria-label="Toggle Two's complement mode">
|
||||
<!-- Bits render here -->
|
||||
<section class="bits" id="bitsGrid" aria-label="Bit switches"></section>
|
||||
</div>
|
||||
|
||||
<!-- RIGHT: red buttons go above/below this panel (not in the middle) -->
|
||||
<aside class="panelCol">
|
||||
<div class="card">
|
||||
<div class="cardTitle">Mode</div>
|
||||
|
||||
<div class="toggleRow">
|
||||
<div class="toggleLabel" id="lblUnsigned">Unsigned</div>
|
||||
|
||||
<label class="switch" aria-label="Toggle mode">
|
||||
<input id="modeToggle" type="checkbox" />
|
||||
<span class="slider"></span>
|
||||
</label>
|
||||
|
||||
<span style="font-weight:800;">Two’s complement</span>
|
||||
<div class="toggleLabel" id="lblTwos">Two's complement</div>
|
||||
</div>
|
||||
|
||||
<div class="hint" id="modeHint">
|
||||
Tip: In unsigned binary, all bits represent positive values.
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- RED: extra buttons ABOVE bit width -->
|
||||
<div class="card">
|
||||
<div class="cardTitle">Tools</div>
|
||||
<div class="toolsGrid">
|
||||
<button class="btn" id="btnClear" type="button">Clear</button>
|
||||
<button class="btn btn--spin" id="btnMinus1" type="button">−1</button>
|
||||
<button class="btn btn--spin" id="btnPlus1" type="button">+1</button>
|
||||
<button class="btn" id="btnAutoRandom" type="button">Auto Random</button>
|
||||
</div>
|
||||
<div class="hint">
|
||||
Tip: In two’s complement, the left-most bit (MSB) represents a negative value.
|
||||
Auto Random runs briefly then stops automatically.
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="panel">
|
||||
<div class="panelTitle">Bit width</div>
|
||||
<div class="card">
|
||||
<div class="cardTitle">Bit width</div>
|
||||
|
||||
<div class="bwControls">
|
||||
<button class="bwBtn" id="btnBitsDown" type="button" aria-label="Decrease bits">−</button>
|
||||
<div class="bitWidthRow">
|
||||
<button class="miniBtn" id="btnBitsDown" type="button" aria-label="Decrease bits">−</button>
|
||||
|
||||
<div class="bwInput">
|
||||
<div class="bwLabel">Bits</div>
|
||||
<div class="bitInputWrap">
|
||||
<div class="bitInputLabel">Bits</div>
|
||||
<input
|
||||
id="bitsField"
|
||||
class="bwField"
|
||||
id="bitsInput"
|
||||
class="bitInput"
|
||||
type="number"
|
||||
min="4"
|
||||
inputmode="numeric"
|
||||
min="1"
|
||||
max="64"
|
||||
step="1"
|
||||
value="8"
|
||||
inputmode="numeric"
|
||||
aria-label="Number of bits"
|
||||
/>
|
||||
</div>
|
||||
|
||||
<button class="bwBtn" id="btnBitsUp" type="button" aria-label="Increase bits">+</button>
|
||||
<button class="miniBtn" id="btnBitsUp" type="button" aria-label="Increase bits">+</button>
|
||||
</div>
|
||||
|
||||
<div class="hint">
|
||||
Minimum 4 bits, maximum 64 bits.
|
||||
</div>
|
||||
<div class="hint">Minimum 1 bit, maximum 64 bits.</div>
|
||||
</div>
|
||||
</aside>
|
||||
</div>
|
||||
|
||||
<script type="module" src={binaryScriptUrl}></script>
|
||||
</section>
|
||||
</main>
|
||||
|
||||
<script type="module">
|
||||
// ---------- State ----------
|
||||
let bitsCount = 8; // 4..64
|
||||
let isTwos = false; // false = unsigned
|
||||
let bitStates = []; // MSB -> LSB booleans
|
||||
|
||||
// ---------- Helpers ----------
|
||||
function clamp(n, min, max){ return Math.min(max, Math.max(min, n)); }
|
||||
|
||||
function pow2(n){
|
||||
// for up to 64 bits, Number is still OK for *visual simulator*.
|
||||
// if you later want exact 64-bit maths, swap to BigInt end-to-end.
|
||||
return 2 ** n;
|
||||
}
|
||||
|
||||
function getPlaceValues(){
|
||||
// MSB -> LSB
|
||||
// Unsigned: [2^(n-1), ..., 1]
|
||||
// Two's: [-2^(n-1), 2^(n-2), ..., 1]
|
||||
const vals = [];
|
||||
for (let i = 0; i < bitsCount; i++){
|
||||
const power = bitsCount - 1 - i;
|
||||
if (isTwos && i === 0){
|
||||
vals.push(-pow2(power));
|
||||
} else {
|
||||
vals.push(pow2(power));
|
||||
}
|
||||
}
|
||||
return vals;
|
||||
}
|
||||
|
||||
function binaryString(){
|
||||
return bitStates.map(b => (b ? "1" : "0")).join("");
|
||||
}
|
||||
|
||||
function denaryValue(){
|
||||
const values = getPlaceValues();
|
||||
let sum = 0;
|
||||
for (let i = 0; i < bitsCount; i++){
|
||||
if (bitStates[i]) sum += values[i];
|
||||
}
|
||||
return sum;
|
||||
}
|
||||
|
||||
function rangeForMode(){
|
||||
if (!isTwos){
|
||||
return { min: 0, max: pow2(bitsCount) - 1 };
|
||||
}
|
||||
return { min: -pow2(bitsCount - 1), max: pow2(bitsCount - 1) - 1 };
|
||||
}
|
||||
|
||||
function updateReadout(){
|
||||
document.getElementById("binaryNumber").innerText = binaryString();
|
||||
document.getElementById("denaryNumber").innerText = String(denaryValue());
|
||||
|
||||
// bulb on/off updates:
|
||||
for (let i = 0; i < bitsCount; i++){
|
||||
const bulb = document.getElementById(`bulb-${i}`);
|
||||
if (bulb) bulb.classList.toggle("on", !!bitStates[i]);
|
||||
}
|
||||
}
|
||||
|
||||
// ---------- DOM build for bits grid ----------
|
||||
function setBitsGridColumns(){
|
||||
const grid = document.getElementById("bitsGrid");
|
||||
// make it adapt (up to 16 per row max, then wraps)
|
||||
const cols = clamp(bitsCount, 4, 16);
|
||||
grid.style.gridTemplateColumns = `repeat(${cols}, 1fr)`;
|
||||
}
|
||||
|
||||
function buildBitsGrid(){
|
||||
const grid = document.getElementById("bitsGrid");
|
||||
grid.innerHTML = "";
|
||||
|
||||
setBitsGridColumns();
|
||||
|
||||
const values = getPlaceValues();
|
||||
|
||||
for (let i = 0; i < bitsCount; i++){
|
||||
const v = values[i];
|
||||
|
||||
const bit = document.createElement("div");
|
||||
bit.className = "bit";
|
||||
|
||||
const bulb = document.createElement("div");
|
||||
bulb.className = "bulb";
|
||||
bulb.id = `bulb-${i}`;
|
||||
bulb.setAttribute("aria-hidden", "true");
|
||||
|
||||
const val = document.createElement("div");
|
||||
val.className = "bitVal num";
|
||||
// show absolute label for MSB in twos? No — show the actual negative value (clear to students).
|
||||
val.textContent = String(v);
|
||||
|
||||
// IMPORTANT: bit switch must be the SAME style as MODE switch
|
||||
const label = document.createElement("label");
|
||||
label.className = "switch";
|
||||
label.setAttribute("aria-label", `Toggle bit ${v}`);
|
||||
|
||||
const input = document.createElement("input");
|
||||
input.type = "checkbox";
|
||||
input.dataset.index = String(i);
|
||||
input.checked = !!bitStates[i];
|
||||
|
||||
const slider = document.createElement("span");
|
||||
slider.className = "slider";
|
||||
|
||||
input.addEventListener("change", () => {
|
||||
bitStates[i] = input.checked;
|
||||
updateReadout();
|
||||
});
|
||||
|
||||
label.appendChild(input);
|
||||
label.appendChild(slider);
|
||||
|
||||
bit.appendChild(bulb);
|
||||
bit.appendChild(val);
|
||||
bit.appendChild(label);
|
||||
grid.appendChild(bit);
|
||||
}
|
||||
|
||||
updateReadout();
|
||||
}
|
||||
|
||||
// ---------- Set state from binary / denary ----------
|
||||
function setFromBinary(bin){
|
||||
const clean = String(bin).replace(/\s+/g, "");
|
||||
if (!/^[01]+$/.test(clean)) return false;
|
||||
|
||||
const padded = clean.slice(-bitsCount).padStart(bitsCount, "0");
|
||||
bitStates = [...padded].map(ch => ch === "1");
|
||||
|
||||
// update toggles without rebuilding
|
||||
for (let i = 0; i < bitsCount; i++){
|
||||
const toggle = document.querySelector(`input[type="checkbox"][data-index="${i}"]`);
|
||||
if (toggle) toggle.checked = bitStates[i];
|
||||
}
|
||||
updateReadout();
|
||||
return true;
|
||||
}
|
||||
|
||||
function setFromDenary(n){
|
||||
const num = Number(n);
|
||||
if (!Number.isInteger(num)) return false;
|
||||
|
||||
const { min, max } = rangeForMode();
|
||||
if (num < min || num > max) return false;
|
||||
|
||||
// convert to bit pattern
|
||||
let unsignedVal;
|
||||
if (!isTwos){
|
||||
unsignedVal = num;
|
||||
} else {
|
||||
// two's complement representation
|
||||
unsignedVal = num < 0 ? (pow2(bitsCount) + num) : num;
|
||||
}
|
||||
|
||||
// build MSB->LSB bits from unsignedVal
|
||||
const newBits = [];
|
||||
for (let i = 0; i < bitsCount; i++){
|
||||
const power = bitsCount - 1 - i;
|
||||
const bit = Math.floor(unsignedVal / pow2(power)) % 2;
|
||||
newBits.push(bit === 1);
|
||||
}
|
||||
bitStates = newBits;
|
||||
|
||||
for (let i = 0; i < bitsCount; i++){
|
||||
const toggle = document.querySelector(`input[type="checkbox"][data-index="${i}"]`);
|
||||
if (toggle) toggle.checked = bitStates[i];
|
||||
}
|
||||
updateReadout();
|
||||
return true;
|
||||
}
|
||||
|
||||
// ---------- Shifts ----------
|
||||
function shiftLeft(){
|
||||
// logical left shift: drop MSB, add 0 at LSB
|
||||
bitStates = bitStates.slice(1).concat(false);
|
||||
buildBitsGrid(); // rebuild keeps labels correct if mode changed (also updates bulbs)
|
||||
}
|
||||
|
||||
function shiftRight(){
|
||||
if (!isTwos){
|
||||
// logical right shift
|
||||
bitStates = [false].concat(bitStates.slice(0, -1));
|
||||
} else {
|
||||
// arithmetic right shift (preserve MSB)
|
||||
const msb = bitStates[0];
|
||||
bitStates = [msb].concat(bitStates.slice(0, -1));
|
||||
}
|
||||
buildBitsGrid();
|
||||
}
|
||||
|
||||
// ---------- Bit width ----------
|
||||
function applyBitsCount(next){
|
||||
const wanted = clamp(Number(next) || 8, 4, 64);
|
||||
if (wanted === bitsCount) return;
|
||||
|
||||
// keep the right-most (LSB) bits when resizing (feels natural)
|
||||
const old = binaryString();
|
||||
bitsCount = wanted;
|
||||
|
||||
// rebuild state from old binary, keeping LSBs
|
||||
const padded = old.slice(-bitsCount).padStart(bitsCount, "0");
|
||||
bitStates = [...padded].map(ch => ch === "1");
|
||||
|
||||
document.getElementById("bitsField").value = String(bitsCount);
|
||||
buildBitsGrid();
|
||||
}
|
||||
|
||||
// ---------- Mode toggle ----------
|
||||
function applyMode(nextIsTwos){
|
||||
const prevDenary = denaryValue(); // keep the *value* if possible
|
||||
isTwos = !!nextIsTwos;
|
||||
|
||||
// Try to keep the denary value, but clamp if it becomes invalid in the new mode
|
||||
const { min, max } = rangeForMode();
|
||||
const kept = clamp(prevDenary, min, max);
|
||||
setFromDenary(kept);
|
||||
|
||||
buildBitsGrid();
|
||||
}
|
||||
|
||||
// ---------- Wire up UI ----------
|
||||
function wireUI(){
|
||||
document.getElementById("btnShiftLeft").addEventListener("click", shiftLeft);
|
||||
document.getElementById("btnShiftRight").addEventListener("click", shiftRight);
|
||||
|
||||
document.getElementById("btnCustomBinary").addEventListener("click", () => {
|
||||
const val = prompt(`Enter a binary number (up to ${bitsCount} bits):`);
|
||||
if (val === null) return;
|
||||
if (!setFromBinary(val)) alert("Invalid input. Use only 0 and 1.");
|
||||
});
|
||||
|
||||
document.getElementById("btnCustomDenary").addEventListener("click", () => {
|
||||
const { min, max } = rangeForMode();
|
||||
const val = prompt(`Enter a denary number (${min} to ${max}):`);
|
||||
if (val === null) return;
|
||||
if (!setFromDenary(val)) alert(`Invalid input. Enter an integer from ${min} to ${max}.`);
|
||||
});
|
||||
|
||||
// Mode toggle
|
||||
const modeToggle = document.getElementById("modeToggle");
|
||||
modeToggle.addEventListener("change", () => applyMode(modeToggle.checked));
|
||||
|
||||
// Bit width +/- and manual entry
|
||||
document.getElementById("btnBitsDown").addEventListener("click", () => applyBitsCount(bitsCount - 1));
|
||||
document.getElementById("btnBitsUp").addEventListener("click", () => applyBitsCount(bitsCount + 1));
|
||||
|
||||
const bitsField = document.getElementById("bitsField");
|
||||
bitsField.addEventListener("change", () => applyBitsCount(bitsField.value));
|
||||
bitsField.addEventListener("blur", () => applyBitsCount(bitsField.value));
|
||||
bitsField.addEventListener("keydown", (e) => {
|
||||
if (e.key === "Enter") applyBitsCount(bitsField.value);
|
||||
});
|
||||
}
|
||||
|
||||
// ---------- Init ----------
|
||||
function init(){
|
||||
// default: 8-bit unsigned
|
||||
bitsCount = 8;
|
||||
isTwos = false;
|
||||
bitStates = Array(bitsCount).fill(false);
|
||||
|
||||
document.getElementById("modeToggle").checked = false;
|
||||
document.getElementById("bitsField").value = String(bitsCount);
|
||||
|
||||
wireUI();
|
||||
buildBitsGrid();
|
||||
}
|
||||
|
||||
init();
|
||||
</script>
|
||||
</body>
|
||||
</html>
|
||||
</BaseLayout>
|
||||
|
||||
347
src/scripts/binary.js
Normal file
347
src/scripts/binary.js
Normal file
@@ -0,0 +1,347 @@
|
||||
const bitsGrid = document.getElementById("bitsGrid");
|
||||
const denaryEl = document.getElementById("denaryNumber");
|
||||
const binaryEl = document.getElementById("binaryNumber");
|
||||
|
||||
const modeToggle = document.getElementById("modeToggle");
|
||||
const modeHint = document.getElementById("modeHint");
|
||||
|
||||
const bitsInput = document.getElementById("bitsInput");
|
||||
const btnBitsUp = document.getElementById("btnBitsUp");
|
||||
const btnBitsDown = document.getElementById("btnBitsDown");
|
||||
|
||||
const btnShiftLeft = document.getElementById("btnShiftLeft");
|
||||
const btnShiftRight = document.getElementById("btnShiftRight");
|
||||
const btnCustomBinary = document.getElementById("btnCustomBinary");
|
||||
const btnCustomDenary = document.getElementById("btnCustomDenary");
|
||||
|
||||
const btnClear = document.getElementById("btnClear");
|
||||
const btnMinus1 = document.getElementById("btnMinus1");
|
||||
const btnPlus1 = document.getElementById("btnPlus1");
|
||||
const btnAutoRandom = document.getElementById("btnAutoRandom");
|
||||
|
||||
let bitCount = clampInt(Number(bitsInput?.value ?? 8), 1, 64);
|
||||
let isTwos = Boolean(modeToggle?.checked);
|
||||
|
||||
let bits = new Array(bitCount).fill(false); // MSB at index 0
|
||||
let autoTimer = null;
|
||||
|
||||
function clampInt(n, min, max){
|
||||
n = Number(n);
|
||||
if (!Number.isFinite(n)) return min;
|
||||
n = Math.trunc(n);
|
||||
return Math.max(min, Math.min(max, n));
|
||||
}
|
||||
|
||||
/* ----------------------------
|
||||
Label values (MSB..LSB)
|
||||
Unsigned: [2^(n-1) ... 1]
|
||||
Two's: [-2^(n-1), 2^(n-2) ... 1]
|
||||
----------------------------- */
|
||||
function getLabelValues(){
|
||||
const vals = [];
|
||||
for (let i = 0; i < bitCount; i++){
|
||||
const pow = bitCount - 1 - i;
|
||||
let v = 2 ** pow;
|
||||
if (isTwos && i === 0) v = -v; // ✅ MSB label becomes negative
|
||||
vals.push(v);
|
||||
}
|
||||
return vals;
|
||||
}
|
||||
|
||||
function buildBits(){
|
||||
// wrap every 8 bits
|
||||
bitsGrid.style.setProperty("--cols", String(Math.min(8, bitCount)));
|
||||
|
||||
bitsGrid.innerHTML = "";
|
||||
const labelValues = getLabelValues();
|
||||
|
||||
for (let i = 0; i < bitCount; i++){
|
||||
const bit = document.createElement("div");
|
||||
bit.className = "bit";
|
||||
bit.innerHTML = `
|
||||
<div class="bulb" id="bulb-${i}" aria-hidden="true">💡</div>
|
||||
<div class="bitVal num" id="label-${i}">${labelValues[i]}</div>
|
||||
<label class="switch" aria-label="Toggle bit">
|
||||
<input type="checkbox" data-index="${i}">
|
||||
<span class="slider"></span>
|
||||
</label>
|
||||
`;
|
||||
bitsGrid.appendChild(bit);
|
||||
}
|
||||
|
||||
// hook switches
|
||||
bitsGrid.querySelectorAll('input[type="checkbox"][data-index]').forEach((input) => {
|
||||
input.addEventListener("change", () => {
|
||||
const idx = Number(input.dataset.index);
|
||||
bits[idx] = input.checked;
|
||||
updateUI();
|
||||
});
|
||||
});
|
||||
|
||||
updateUI();
|
||||
}
|
||||
|
||||
function setLabels(){
|
||||
const labelValues = getLabelValues();
|
||||
for (let i = 0; i < bitCount; i++){
|
||||
const el = document.getElementById(`label-${i}`);
|
||||
if (el) el.textContent = String(labelValues[i]);
|
||||
}
|
||||
}
|
||||
|
||||
function bitsToUnsigned(){
|
||||
let n = 0;
|
||||
for (let i = 0; i < bitCount; i++){
|
||||
if (!bits[i]) continue;
|
||||
const pow = bitCount - 1 - i;
|
||||
n += 2 ** pow;
|
||||
}
|
||||
return n;
|
||||
}
|
||||
|
||||
function bitsToTwos(){
|
||||
// Two's complement interpretation
|
||||
// value = -MSB*2^(n-1) + sum(other set bits)
|
||||
let n = 0;
|
||||
for (let i = 0; i < bitCount; i++){
|
||||
if (!bits[i]) continue;
|
||||
const pow = bitCount - 1 - i;
|
||||
const v = 2 ** pow;
|
||||
if (i === 0) n -= v;
|
||||
else n += v;
|
||||
}
|
||||
return n;
|
||||
}
|
||||
|
||||
function getCurrentValue(){
|
||||
return isTwos ? bitsToTwos() : bitsToUnsigned();
|
||||
}
|
||||
|
||||
function setFromUnsignedValue(n){
|
||||
// clamp to range of bitCount
|
||||
const max = (2 ** bitCount) - 1;
|
||||
n = clampInt(n, 0, max);
|
||||
|
||||
for (let i = 0; i < bitCount; i++){
|
||||
const pow = bitCount - 1 - i;
|
||||
const v = 2 ** pow;
|
||||
if (n >= v){
|
||||
bits[i] = true;
|
||||
n -= v;
|
||||
} else {
|
||||
bits[i] = false;
|
||||
}
|
||||
}
|
||||
syncSwitchesAndBulbs();
|
||||
updateUI(false);
|
||||
}
|
||||
|
||||
function setFromTwosValue(n){
|
||||
// represent in two's complement with bitCount bits:
|
||||
// allowed range: [-2^(n-1), 2^(n-1)-1]
|
||||
const min = -(2 ** (bitCount - 1));
|
||||
const max = (2 ** (bitCount - 1)) - 1;
|
||||
n = clampInt(n, min, max);
|
||||
|
||||
// Convert to unsigned representation modulo 2^bitCount
|
||||
const mod = 2 ** bitCount;
|
||||
let u = ((n % mod) + mod) % mod;
|
||||
|
||||
// then set bits from unsigned u
|
||||
for (let i = 0; i < bitCount; i++){
|
||||
const pow = bitCount - 1 - i;
|
||||
const v = 2 ** pow;
|
||||
if (u >= v){
|
||||
bits[i] = true;
|
||||
u -= v;
|
||||
} else {
|
||||
bits[i] = false;
|
||||
}
|
||||
}
|
||||
syncSwitchesAndBulbs();
|
||||
updateUI(false);
|
||||
}
|
||||
|
||||
function formatBinary(groupsOf = 4){
|
||||
const raw = bits.map(b => (b ? "1" : "0")).join("");
|
||||
// group for readability (keeps your “wrap every 8 bits” layout for switches;
|
||||
// this just formats the readout)
|
||||
let out = "";
|
||||
for (let i = 0; i < raw.length; i++){
|
||||
out += raw[i];
|
||||
const isLast = i === raw.length - 1;
|
||||
if (!isLast && (i + 1) % groupsOf === 0) out += " ";
|
||||
}
|
||||
return out.trim();
|
||||
}
|
||||
|
||||
function syncSwitchesAndBulbs(){
|
||||
// ✅ Bulbs always update (unsigned OR two's)
|
||||
bitsGrid.querySelectorAll('input[type="checkbox"][data-index]').forEach((input) => {
|
||||
const idx = Number(input.dataset.index);
|
||||
input.checked = Boolean(bits[idx]);
|
||||
});
|
||||
|
||||
for (let i = 0; i < bitCount; i++){
|
||||
const bulb = document.getElementById(`bulb-${i}`);
|
||||
if (bulb) bulb.classList.toggle("on", Boolean(bits[i]));
|
||||
}
|
||||
}
|
||||
|
||||
function updateUI(sync = true){
|
||||
if (sync) syncSwitchesAndBulbs();
|
||||
|
||||
// labels update when mode changes
|
||||
setLabels();
|
||||
|
||||
// readouts
|
||||
const value = getCurrentValue();
|
||||
denaryEl.textContent = String(value);
|
||||
binaryEl.textContent = formatBinary(4);
|
||||
|
||||
// hint
|
||||
if (isTwos){
|
||||
modeHint.textContent = "Tip: In two’s complement, the left-most bit (MSB) represents a negative value.";
|
||||
} else {
|
||||
modeHint.textContent = "Tip: In unsigned binary, all bits represent positive values.";
|
||||
}
|
||||
}
|
||||
|
||||
/* ----------------------------
|
||||
Controls
|
||||
----------------------------- */
|
||||
btnShiftLeft?.addEventListener("click", () => {
|
||||
// shift left: drop MSB, append 0 to LSB
|
||||
bits.shift();
|
||||
bits.push(false);
|
||||
updateUI();
|
||||
});
|
||||
|
||||
btnShiftRight?.addEventListener("click", () => {
|
||||
// shift right: drop LSB, insert 0 at MSB
|
||||
bits.pop();
|
||||
bits.unshift(false);
|
||||
updateUI();
|
||||
});
|
||||
|
||||
btnClear?.addEventListener("click", () => {
|
||||
bits = new Array(bitCount).fill(false);
|
||||
updateUI();
|
||||
});
|
||||
|
||||
btnMinus1?.addEventListener("click", () => {
|
||||
const v = getCurrentValue();
|
||||
if (isTwos) setFromTwosValue(v - 1);
|
||||
else setFromUnsignedValue(v - 1);
|
||||
});
|
||||
|
||||
btnPlus1?.addEventListener("click", () => {
|
||||
const v = getCurrentValue();
|
||||
if (isTwos) setFromTwosValue(v + 1);
|
||||
else setFromUnsignedValue(v + 1);
|
||||
});
|
||||
|
||||
btnAutoRandom?.addEventListener("click", () => {
|
||||
// stop if already running
|
||||
if (autoTimer){
|
||||
clearInterval(autoTimer);
|
||||
autoTimer = null;
|
||||
btnAutoRandom.textContent = "Auto Random";
|
||||
return;
|
||||
}
|
||||
|
||||
btnAutoRandom.textContent = "Stop Random";
|
||||
|
||||
// run briefly then stop automatically
|
||||
const start = Date.now();
|
||||
const durationMs = 2200; // auto stop
|
||||
|
||||
autoTimer = setInterval(() => {
|
||||
const now = Date.now();
|
||||
if (now - start > durationMs){
|
||||
clearInterval(autoTimer);
|
||||
autoTimer = null;
|
||||
btnAutoRandom.textContent = "Auto Random";
|
||||
return;
|
||||
}
|
||||
|
||||
// random within correct range for current mode
|
||||
if (isTwos){
|
||||
const min = -(2 ** (bitCount - 1));
|
||||
const max = (2 ** (bitCount - 1)) - 1;
|
||||
const n = Math.floor(Math.random() * (max - min + 1)) + min;
|
||||
setFromTwosValue(n);
|
||||
} else {
|
||||
const max = (2 ** bitCount) - 1;
|
||||
const n = Math.floor(Math.random() * (max + 1));
|
||||
setFromUnsignedValue(n);
|
||||
}
|
||||
}, 90);
|
||||
});
|
||||
|
||||
btnCustomBinary?.addEventListener("click", () => {
|
||||
const v = prompt(`Enter a ${bitCount}-bit binary number (0/1):`);
|
||||
if (v === null) return;
|
||||
|
||||
const clean = v.replace(/\s+/g, "");
|
||||
if (!/^[01]+$/.test(clean)){
|
||||
alert("Invalid binary. Use only 0 and 1.");
|
||||
return;
|
||||
}
|
||||
|
||||
const padded = clean.slice(-bitCount).padStart(bitCount, "0");
|
||||
bits = [...padded].map(ch => ch === "1");
|
||||
updateUI();
|
||||
});
|
||||
|
||||
btnCustomDenary?.addEventListener("click", () => {
|
||||
const v = prompt(isTwos
|
||||
? `Enter a denary number (${-(2 ** (bitCount - 1))} to ${(2 ** (bitCount - 1)) - 1}):`
|
||||
: `Enter a denary number (0 to ${(2 ** bitCount) - 1}):`
|
||||
);
|
||||
if (v === null) return;
|
||||
|
||||
const n = Number(v);
|
||||
if (!Number.isFinite(n) || !Number.isInteger(n)){
|
||||
alert("Invalid denary. Enter a whole number.");
|
||||
return;
|
||||
}
|
||||
|
||||
if (isTwos) setFromTwosValue(n);
|
||||
else setFromUnsignedValue(n);
|
||||
});
|
||||
|
||||
/* ----------------------------
|
||||
Mode + Bit width
|
||||
----------------------------- */
|
||||
modeToggle?.addEventListener("change", () => {
|
||||
isTwos = Boolean(modeToggle.checked);
|
||||
// keep the same underlying bit pattern; just reinterpret and relabel
|
||||
updateUI(false);
|
||||
});
|
||||
|
||||
btnBitsUp?.addEventListener("click", () => {
|
||||
bitCount = clampInt(bitCount + 1, 1, 64);
|
||||
bitsInput.value = String(bitCount);
|
||||
bits = new Array(bitCount).fill(false);
|
||||
buildBits();
|
||||
});
|
||||
|
||||
btnBitsDown?.addEventListener("click", () => {
|
||||
bitCount = clampInt(bitCount - 1, 1, 64);
|
||||
bitsInput.value = String(bitCount);
|
||||
bits = new Array(bitCount).fill(false);
|
||||
buildBits();
|
||||
});
|
||||
|
||||
bitsInput?.addEventListener("change", () => {
|
||||
bitCount = clampInt(Number(bitsInput.value), 1, 64);
|
||||
bitsInput.value = String(bitCount);
|
||||
bits = new Array(bitCount).fill(false);
|
||||
buildBits();
|
||||
});
|
||||
|
||||
/* ----------------------------
|
||||
Init
|
||||
----------------------------- */
|
||||
buildBits();
|
||||
@@ -1,54 +0,0 @@
|
||||
let bits = [128,64,32,16,8,4,2,1];
|
||||
let state = Array(8).fill(0);
|
||||
|
||||
const denaryEl = document.getElementById("denaryNumber");
|
||||
const binaryEl = document.getElementById("binaryNumber");
|
||||
const bitEls = document.querySelectorAll(".bit");
|
||||
|
||||
bitEls.forEach((el, i) => {
|
||||
el.addEventListener("click", () => {
|
||||
state[i] = state[i] ? 0 : 1;
|
||||
el.classList.toggle("on");
|
||||
update();
|
||||
});
|
||||
});
|
||||
|
||||
function update() {
|
||||
const denary = state.reduce((sum, bit, i) => sum + bit * bits[i], 0);
|
||||
denaryEl.textContent = denary;
|
||||
binaryEl.textContent = state.join("");
|
||||
}
|
||||
|
||||
function requestBinary() {
|
||||
const input = prompt("Enter 8-bit binary:");
|
||||
if (!/^[01]{8}$/.test(input)) return;
|
||||
state = input.split("").map(Number);
|
||||
bitEls.forEach((el,i)=>el.classList.toggle("on",state[i]));
|
||||
update();
|
||||
}
|
||||
|
||||
function requestDenary() {
|
||||
const input = parseInt(prompt("Enter denary (0–255)"),10);
|
||||
if (isNaN(input) || input < 0 || input > 255) return;
|
||||
|
||||
let value = input;
|
||||
state = bits.map(b => {
|
||||
if (value >= b) {
|
||||
value -= b;
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
});
|
||||
|
||||
bitEls.forEach((el,i)=>el.classList.toggle("on",state[i]));
|
||||
update();
|
||||
}
|
||||
|
||||
function shiftBinary(dir) {
|
||||
if (dir === "left") state.shift(), state.push(0);
|
||||
if (dir === "right") state.pop(), state.unshift(0);
|
||||
bitEls.forEach((el,i)=>el.classList.toggle("on",state[i]));
|
||||
update();
|
||||
}
|
||||
|
||||
update();
|
||||
@@ -1,52 +0,0 @@
|
||||
/* src/styles/base.css */
|
||||
@import "./md3-tokens.css";
|
||||
html, body{ height:100%; }
|
||||
body{
|
||||
margin:0;
|
||||
font-family: var(--font-sans);
|
||||
background: var(--md-surface-2);
|
||||
color: var(--md-on-surface);
|
||||
}
|
||||
a{ color: var(--md-primary); text-decoration: none; }
|
||||
a:hover{ text-decoration: underline; }
|
||||
.container{
|
||||
max-width: 1100px;
|
||||
margin: 0 auto;
|
||||
padding: 16px;
|
||||
}
|
||||
.card{
|
||||
background: var(--md-surface);
|
||||
border: 1px solid var(--md-outline);
|
||||
border-radius: var(--radius-2);
|
||||
box-shadow: var(--shadow-1);
|
||||
padding: 16px;
|
||||
}
|
||||
.btn{
|
||||
display:inline-flex;
|
||||
gap:8px;
|
||||
align-items:center;
|
||||
justify-content:center;
|
||||
border-radius: 999px;
|
||||
border: 1px solid var(--md-outline);
|
||||
background: var(--md-surface);
|
||||
color: var(--md-on-surface);
|
||||
padding: 10px 14px;
|
||||
font-weight: 600;
|
||||
cursor: pointer;
|
||||
}
|
||||
.btn:hover{ filter: brightness(0.98); }
|
||||
.btn:focus{ outline:none; box-shadow: var(--md-focus); }
|
||||
.btn-primary{
|
||||
background: var(--md-primary);
|
||||
color: var(--md-on-primary);
|
||||
border-color: transparent;
|
||||
}
|
||||
.badge{
|
||||
display:inline-block;
|
||||
padding: 2px 10px;
|
||||
border-radius: 999px;
|
||||
font-size: 12px;
|
||||
border: 1px solid var(--md-outline);
|
||||
background: var(--md-surface-2);
|
||||
}
|
||||
code, pre{ font-family: var(--font-mono); }
|
||||
@@ -1,68 +1,297 @@
|
||||
.binary-container {
|
||||
max-width: 1100px;
|
||||
margin: auto;
|
||||
padding: 2rem;
|
||||
color: #e0e0e0;
|
||||
/* DSEG7ClassicRegular font */
|
||||
@font-face{
|
||||
font-family: "DSEG7ClassicRegular";
|
||||
src:
|
||||
url("/fonts/DSEG7Classic-Regular.ttf") format("truetype"),
|
||||
url("/fonts/DSEG7Classic-Regular.woff") format("woff");
|
||||
font-weight: 400;
|
||||
font-style: normal;
|
||||
font-display: swap;
|
||||
}
|
||||
|
||||
.display {
|
||||
.binary-wrap{
|
||||
padding-top: 6px;
|
||||
}
|
||||
|
||||
.topGrid{
|
||||
display:grid;
|
||||
grid-template-columns: 1fr 340px;
|
||||
gap: 28px;
|
||||
align-items:start;
|
||||
}
|
||||
|
||||
.readout{
|
||||
background: transparent;
|
||||
text-align:center;
|
||||
padding: 10px 10px 0;
|
||||
}
|
||||
|
||||
.label{
|
||||
font-size: 1.2rem;
|
||||
opacity: 0.7;
|
||||
letter-spacing: .18em;
|
||||
font-weight: 800;
|
||||
color: var(--muted);
|
||||
text-transform: uppercase;
|
||||
font-size: 13px;
|
||||
margin-top: 10px;
|
||||
}
|
||||
|
||||
.number {
|
||||
font-size: 3rem;
|
||||
margin-bottom: 1rem;
|
||||
color: #00ff66;
|
||||
.num{
|
||||
font-family: "DSEG7ClassicRegular", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
|
||||
font-weight: 400;
|
||||
color: var(--accent);
|
||||
text-shadow: 0 0 18px var(--accent-dim);
|
||||
}
|
||||
|
||||
.denary{
|
||||
font-size: 72px; /* smaller */
|
||||
line-height: 1.0;
|
||||
margin: 6px 0 10px;
|
||||
}
|
||||
|
||||
.binary{
|
||||
font-size: 46px; /* smaller */
|
||||
letter-spacing: .12em;
|
||||
line-height: 1.15;
|
||||
margin: 6px 0 14px;
|
||||
white-space: pre-wrap;
|
||||
word-break: break-word;
|
||||
display:inline-block;
|
||||
text-align:center;
|
||||
}
|
||||
|
||||
.controls{
|
||||
margin-top: 1rem;
|
||||
margin-top: 8px;
|
||||
display:flex;
|
||||
justify-content:center;
|
||||
gap: 12px;
|
||||
flex-wrap: wrap;
|
||||
}
|
||||
|
||||
.controls button {
|
||||
margin: 0.25rem;
|
||||
padding: 0.6rem 1rem;
|
||||
font-size: 1rem;
|
||||
.controls--twoRows{
|
||||
flex-direction: column;
|
||||
gap: 10px;
|
||||
}
|
||||
|
||||
.bits {
|
||||
.controlsRow{
|
||||
display:flex;
|
||||
gap: 12px;
|
||||
justify-content:center;
|
||||
flex-wrap: wrap;
|
||||
}
|
||||
|
||||
.btn{
|
||||
background: rgba(255,255,255,.06);
|
||||
border: 1px solid rgba(255,255,255,.14);
|
||||
color: #fff;
|
||||
padding: 12px 14px;
|
||||
border-radius: 12px;
|
||||
font-weight: 800;
|
||||
cursor: pointer;
|
||||
min-width: 160px;
|
||||
}
|
||||
|
||||
.btn:active{ transform: translateY(1px); }
|
||||
|
||||
.btn--green{
|
||||
background: rgba(51,255,122,.16);
|
||||
border-color: rgba(51,255,122,.45);
|
||||
}
|
||||
|
||||
.btn--green:hover{
|
||||
background: rgba(51,255,122,.22);
|
||||
}
|
||||
|
||||
.btn--spin{
|
||||
min-width: 120px;
|
||||
font-size: 18px; /* bigger */
|
||||
}
|
||||
|
||||
.divider{
|
||||
margin-top: 22px;
|
||||
border-top: 1px solid var(--line);
|
||||
}
|
||||
|
||||
.panelCol{
|
||||
display:flex;
|
||||
flex-direction:column;
|
||||
gap: 14px;
|
||||
}
|
||||
|
||||
.card{
|
||||
background: var(--panel);
|
||||
border: 1px solid var(--panel-border);
|
||||
border-radius: 14px;
|
||||
padding: 14px;
|
||||
}
|
||||
|
||||
.cardTitle{
|
||||
letter-spacing: .18em;
|
||||
font-weight: 900;
|
||||
color: var(--muted);
|
||||
text-transform: uppercase;
|
||||
font-size: 12px;
|
||||
margin: 0 0 10px;
|
||||
}
|
||||
|
||||
.hint{
|
||||
color: var(--muted);
|
||||
font-size: 12px;
|
||||
margin-top: 8px;
|
||||
line-height: 1.35;
|
||||
}
|
||||
|
||||
.toggleRow{
|
||||
display:flex;
|
||||
align-items:center;
|
||||
justify-content:space-between;
|
||||
gap: 10px;
|
||||
}
|
||||
|
||||
.toggleLabel{
|
||||
color: var(--text);
|
||||
font-weight: 800;
|
||||
font-size: 14px;
|
||||
}
|
||||
|
||||
.switch{
|
||||
position:relative;
|
||||
width:56px;
|
||||
height:34px;
|
||||
display:inline-block;
|
||||
flex:0 0 auto;
|
||||
}
|
||||
.switch input{
|
||||
opacity:0;
|
||||
width:0;
|
||||
height:0;
|
||||
}
|
||||
.slider{
|
||||
position:absolute;
|
||||
inset:0;
|
||||
background: rgba(255,255,255,.10);
|
||||
border: 1px solid rgba(255,255,255,.14);
|
||||
border-radius:999px;
|
||||
transition:.18s ease;
|
||||
}
|
||||
.slider::before{
|
||||
content:"";
|
||||
position:absolute;
|
||||
height:28px;
|
||||
width:28px;
|
||||
left:3px;
|
||||
top:2px;
|
||||
background: rgba(255,255,255,.92);
|
||||
border-radius:50%;
|
||||
transition:.18s ease;
|
||||
}
|
||||
.switch input:checked + .slider{
|
||||
background: rgba(51,255,122,.20);
|
||||
border-color: rgba(51,255,122,.55);
|
||||
}
|
||||
.switch input:checked + .slider::before{
|
||||
transform: translateX(22px);
|
||||
background: var(--accent);
|
||||
}
|
||||
|
||||
.bitWidthRow{
|
||||
display:grid;
|
||||
grid-template-columns: repeat(8, 1fr);
|
||||
gap: 1rem;
|
||||
margin-top: 3rem;
|
||||
grid-template-columns:44px 1fr 44px;
|
||||
gap:10px;
|
||||
align-items:center;
|
||||
}
|
||||
|
||||
.miniBtn{
|
||||
height:44px;
|
||||
width:44px;
|
||||
border-radius:12px;
|
||||
background: rgba(255,255,255,.06);
|
||||
border: 1px solid rgba(255,255,255,.14);
|
||||
color:#fff;
|
||||
cursor:pointer;
|
||||
font-weight:900;
|
||||
font-size:18px;
|
||||
}
|
||||
|
||||
.bitInputWrap{
|
||||
background: rgba(255,255,255,.06);
|
||||
border: 1px solid rgba(255,255,255,.14);
|
||||
border-radius:12px;
|
||||
padding:10px 12px;
|
||||
display:flex;
|
||||
align-items:center;
|
||||
justify-content:space-between;
|
||||
gap:12px;
|
||||
}
|
||||
|
||||
.bitInputLabel{
|
||||
color: var(--muted);
|
||||
font-size:12px;
|
||||
font-weight:900;
|
||||
letter-spacing:.18em;
|
||||
text-transform:uppercase;
|
||||
}
|
||||
|
||||
.bitInput{
|
||||
width:86px;
|
||||
text-align:right;
|
||||
background: transparent;
|
||||
border: none;
|
||||
outline: none;
|
||||
color: var(--accent);
|
||||
font-family:"DSEG7ClassicRegular", ui-monospace, monospace;
|
||||
font-size:28px;
|
||||
}
|
||||
.bitInput::-webkit-outer-spin-button,
|
||||
.bitInput::-webkit-inner-spin-button{
|
||||
-webkit-appearance:none;
|
||||
margin:0;
|
||||
}
|
||||
|
||||
/* Bits: wrap every 8 */
|
||||
.bits{
|
||||
--cols: 8;
|
||||
margin-top: 26px;
|
||||
padding-top: 18px;
|
||||
display:grid;
|
||||
grid-template-columns: repeat(var(--cols), 90px);
|
||||
justify-content: center; /* centres when < 8 too */
|
||||
gap: 18px;
|
||||
align-items:end;
|
||||
text-align:center;
|
||||
}
|
||||
|
||||
.bit{
|
||||
width: 40px;
|
||||
height: 80px;
|
||||
background: #333;
|
||||
border-radius: 20px;
|
||||
position: relative;
|
||||
cursor: pointer;
|
||||
display:flex;
|
||||
flex-direction:column;
|
||||
align-items:center;
|
||||
gap: 10px;
|
||||
padding: 8px 4px;
|
||||
}
|
||||
|
||||
.bit::after {
|
||||
content: "";
|
||||
width: 32px;
|
||||
height: 32px;
|
||||
background: #555;
|
||||
border-radius: 50%;
|
||||
position: absolute;
|
||||
bottom: 6px;
|
||||
left: 4px;
|
||||
transition: all 0.2s ease;
|
||||
/* Bulb emoji bigger */
|
||||
.bulb{
|
||||
font-size: 26px; /* bigger */
|
||||
line-height: 1;
|
||||
filter: grayscale(1);
|
||||
opacity: .35;
|
||||
transform: translateY(2px);
|
||||
}
|
||||
.bulb.on{
|
||||
filter: grayscale(0);
|
||||
opacity: 1;
|
||||
text-shadow: 0 0 16px rgba(255,216,107,.55);
|
||||
}
|
||||
|
||||
.bit.on {
|
||||
background: #00c853;
|
||||
.bitVal{
|
||||
font-size: 28px;
|
||||
color: var(--text);
|
||||
opacity: .95;
|
||||
line-height: 1;
|
||||
min-height: 34px;
|
||||
}
|
||||
|
||||
.bit.on::after {
|
||||
bottom: 42px;
|
||||
background: #eaffea;
|
||||
@media (max-width: 980px){
|
||||
.topGrid{ grid-template-columns: 1fr; }
|
||||
.denary{ font-size: 62px; }
|
||||
.binary{ font-size: 40px; }
|
||||
}
|
||||
|
||||
@@ -1,11 +0,0 @@
|
||||
@font-face {
|
||||
font-family: "DSEG7";
|
||||
src: url("/fonts/DSEG7Classic-Regular.ttf") format("truetype");
|
||||
font-weight: normal;
|
||||
font-style: normal;
|
||||
}
|
||||
|
||||
.dseg {
|
||||
font-family: "DSEG7", monospace;
|
||||
letter-spacing: 0.15em;
|
||||
}
|
||||
85
src/styles/global.css
Normal file
85
src/styles/global.css
Normal file
@@ -0,0 +1,85 @@
|
||||
:root{
|
||||
--bg: #1f2027;
|
||||
--panel: #22242d;
|
||||
--panel2: rgba(255,255,255,.04);
|
||||
--text: #e8e8ee;
|
||||
--muted: #a9acb8;
|
||||
--accent: #33ff7a;
|
||||
--accent-dim: rgba(51,255,122,.15);
|
||||
--line: rgba(255,255,255,.12);
|
||||
}
|
||||
|
||||
*{ box-sizing:border-box; }
|
||||
|
||||
body{
|
||||
margin:0;
|
||||
font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
|
||||
background: var(--bg);
|
||||
color: var(--text);
|
||||
}
|
||||
|
||||
.siteHeader{
|
||||
position: sticky;
|
||||
top: 0;
|
||||
z-index: 10;
|
||||
background: rgba(0,0,0,.15);
|
||||
backdrop-filter: blur(8px);
|
||||
border-bottom: 1px solid rgba(255,255,255,.06);
|
||||
}
|
||||
|
||||
.siteHeaderInner{
|
||||
max-width: 1200px;
|
||||
margin: 0 auto;
|
||||
padding: 14px 20px;
|
||||
display:flex;
|
||||
align-items:center;
|
||||
justify-content:space-between;
|
||||
gap: 16px;
|
||||
}
|
||||
|
||||
.brand{
|
||||
color: var(--text);
|
||||
text-decoration:none;
|
||||
font-weight: 900;
|
||||
letter-spacing:.02em;
|
||||
}
|
||||
|
||||
.nav{
|
||||
display:flex;
|
||||
gap: 14px;
|
||||
flex-wrap:wrap;
|
||||
justify-content:flex-end;
|
||||
}
|
||||
.nav a{
|
||||
color: var(--muted);
|
||||
text-decoration:none;
|
||||
font-weight: 700;
|
||||
font-size: 14px;
|
||||
}
|
||||
.nav a:hover{ color: var(--text); }
|
||||
|
||||
.siteMain{
|
||||
min-height: calc(100vh - 140px);
|
||||
}
|
||||
|
||||
.siteFooter{
|
||||
border-top: 1px solid rgba(255,255,255,.08);
|
||||
margin-top: 32px;
|
||||
background: rgba(0,0,0,.10);
|
||||
}
|
||||
|
||||
.siteFooterInner{
|
||||
max-width: 1200px;
|
||||
margin: 0 auto;
|
||||
padding: 18px 20px 26px;
|
||||
color: var(--muted);
|
||||
font-size: 12px;
|
||||
line-height: 1.6;
|
||||
}
|
||||
|
||||
.footerTitle{
|
||||
color: var(--text);
|
||||
opacity:.9;
|
||||
font-weight: 800;
|
||||
margin-bottom: 6px;
|
||||
}
|
||||
@@ -1,43 +0,0 @@
|
||||
/* src/styles/md3-tokens.css */
|
||||
/* MD3-inspired tokens tuned for education: high readability, clear contrast, calm surfaces */
|
||||
:root{
|
||||
/* Typography */
|
||||
--font-sans: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
|
||||
--font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
|
||||
/* Spacing + shape */
|
||||
--radius-1: 10px;
|
||||
--radius-2: 16px;
|
||||
--radius-3: 22px;
|
||||
--shadow-1: 0 1px 2px rgba(0,0,0,.08), 0 2px 8px rgba(0,0,0,.06);
|
||||
/* Color roles (keep simple) */
|
||||
--md-surface: #ffffff;
|
||||
--md-surface-2: #f6f7fb;
|
||||
--md-on-surface: #111318;
|
||||
--md-primary: #2f6fed; /* calm blue */
|
||||
--md-on-primary: #ffffff;
|
||||
--md-secondary: #5a5f72; /* muted */
|
||||
--md-on-secondary: #ffffff;
|
||||
--md-tertiary: #0f766e; /* teal for "practical" tools */
|
||||
--md-on-tertiary: #ffffff;
|
||||
--md-outline: #d7dbe7;
|
||||
--md-success: #1a7f37;
|
||||
--md-warning: #b54708;
|
||||
--md-danger: #b42318;
|
||||
/* Focus ring for accessibility */
|
||||
--md-focus: 0 0 0 3px rgba(47,111,237,.28);
|
||||
}
|
||||
@media (prefers-color-scheme: dark){
|
||||
:root{
|
||||
--md-surface: #0b0e14;
|
||||
--md-surface-2: #121725;
|
||||
--md-on-surface: #e8eaf2;
|
||||
--md-primary: #9bb6ff;
|
||||
--md-on-primary: #0b0e14;
|
||||
--md-secondary: #b8bccd;
|
||||
--md-on-secondary: #0b0e14;
|
||||
--md-tertiary: #4fd1c5;
|
||||
--md-on-tertiary: #0b0e14;
|
||||
--md-outline: #2b3244;
|
||||
--md-focus: 0 0 0 3px rgba(155,182,255,.25);
|
||||
}
|
||||
}
|
||||
75
src/styles/site.css
Normal file
75
src/styles/site.css
Normal file
@@ -0,0 +1,75 @@
|
||||
:root{
|
||||
--bg: #1f2027;
|
||||
--panel: rgba(255,255,255,.04);
|
||||
--panel-border: rgba(255,255,255,.10);
|
||||
--text: #e8e8ee;
|
||||
--muted: #a9acb8;
|
||||
--accent: #33ff7a;
|
||||
--accent-dim: rgba(51,255,122,.15);
|
||||
--line: rgba(255,255,255,.12);
|
||||
}
|
||||
|
||||
*{ box-sizing: border-box; }
|
||||
|
||||
body{
|
||||
margin:0;
|
||||
font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
|
||||
background: var(--bg);
|
||||
color: var(--text);
|
||||
}
|
||||
|
||||
.site-header{
|
||||
border-bottom: 1px solid rgba(255,255,255,.08);
|
||||
background: rgba(0,0,0,.12);
|
||||
}
|
||||
|
||||
.site-header__inner{
|
||||
max-width: 1200px;
|
||||
margin: 0 auto;
|
||||
padding: 14px 20px;
|
||||
display:flex;
|
||||
align-items:center;
|
||||
justify-content:space-between;
|
||||
gap: 18px;
|
||||
}
|
||||
|
||||
.brand{
|
||||
font-weight: 800;
|
||||
letter-spacing: .02em;
|
||||
}
|
||||
|
||||
.nav{
|
||||
display:flex;
|
||||
gap: 14px;
|
||||
flex-wrap: wrap;
|
||||
justify-content:flex-end;
|
||||
}
|
||||
|
||||
.nav__link{
|
||||
color: var(--muted);
|
||||
text-decoration:none;
|
||||
font-weight: 700;
|
||||
font-size: 13px;
|
||||
}
|
||||
.nav__link:hover{ color: var(--text); }
|
||||
|
||||
.site-main{
|
||||
max-width: 1200px;
|
||||
margin: 0 auto;
|
||||
padding: 28px 20px 40px;
|
||||
min-height: calc(100vh - 140px);
|
||||
}
|
||||
|
||||
.site-footer{
|
||||
border-top: 1px solid rgba(255,255,255,.08);
|
||||
background: rgba(0,0,0,.10);
|
||||
}
|
||||
|
||||
.site-footer__inner{
|
||||
max-width: 1200px;
|
||||
margin: 0 auto;
|
||||
padding: 16px 20px;
|
||||
color: var(--muted);
|
||||
font-size: 12px;
|
||||
line-height: 1.5;
|
||||
}
|
||||
Reference in New Issue
Block a user