You've already forked computing-box
Addition of increment/decrement buttons, addition of Auto Random button
Signed-off-by: Alexander Lyall <alex@adcm.uk>
This commit is contained in:
@@ -1,7 +1,29 @@
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<footer class="siteFooter">
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<div class="siteFooter__inner">
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<div>Computer Science Concept Simulators</div>
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<div>© 2025 Computing:Box · Created with ❤️ by Mr Lyall</div>
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<div>Powered by ADCM Networks</div>
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<div class="inner">
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<div class="title">Computer Science Concept Simulators</div>
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<div class="meta">
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© 2025 Computing:Box · Created with 💗 by Mr Lyall<br />
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||||
Powered by ADCM Networks
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</div>
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||||
</div>
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||||
</footer>
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||||
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||||
<style>
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||||
.siteFooter{
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||||
border-top: 1px solid rgba(255,255,255,.10);
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background: rgba(0,0,0,.10);
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}
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.inner{
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max-width:1200px;
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margin:0 auto;
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padding: 18px 20px;
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color: rgba(255,255,255,.65);
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font-size: 12px;
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line-height: 1.6;
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}
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.title{
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color: rgba(255,255,255,.80);
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font-weight: 800;
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margin-bottom: 6px;
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}
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</style>
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@@ -1,13 +1,57 @@
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<header class="siteHeader">
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||||
<div class="siteHeader__inner">
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||||
<a class="brand" href="/">Computing:Box</a>
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||||
<div class="inner">
|
||||
<div class="brand">
|
||||
<a href="/">Computing:Box</a>
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||||
</div>
|
||||
|
||||
<nav class="nav">
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||||
<a class="nav__link" href="/binary">Binary</a>
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||||
<a class="nav__link" href="/hexadecimal">Hexadecimal</a>
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||||
<a class="nav__link" href="/hex-colours">Hex Colours</a>
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||||
<a class="nav__link" href="/logic-gates">Logic Gates</a>
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||||
<a class="nav__link" href="/about">About</a>
|
||||
<a href="/binary">Binary</a>
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||||
<a href="/hexadecimal">Hexadecimal</a>
|
||||
<a href="/hex-colours">Hex Colours</a>
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||||
<a href="/logic-gates">Logic Gates</a>
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||||
<a href="/about">About</a>
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||||
</nav>
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||||
</div>
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</header>
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||||
|
||||
<style>
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||||
.siteHeader{
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height: 64px;
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display:flex;
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align-items:center;
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border-bottom: 1px solid rgba(255,255,255,.10);
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background: rgba(0,0,0,.10);
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backdrop-filter: blur(8px);
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}
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.inner{
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max-width: 1200px;
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width: 100%;
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margin: 0 auto;
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padding: 0 20px;
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display:flex;
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align-items:center;
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justify-content: space-between;
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gap: 18px;
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}
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.brand a{
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color:#fff;
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text-decoration:none;
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font-weight: 800;
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letter-spacing: .02em;
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}
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.nav{
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display:flex;
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gap: 16px;
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flex-wrap: wrap;
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}
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.nav a{
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color: rgba(255,255,255,.78);
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text-decoration:none;
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font-weight: 700;
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font-size: 13px;
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letter-spacing:.02em;
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}
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.nav a:hover{
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color:#fff;
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}
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</style>
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@@ -1,381 +0,0 @@
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---
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const { mode = "unsigned", defaultBits = 8 } = Astro.props;
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// For unsigned: min 1 bit, max 16 bits (tweak if you want)
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const minBits = 4;
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const maxBits = 16;
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const initialBits = Math.min(Math.max(defaultBits, minBits), maxBits);
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---
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<section class="binary-sim" data-mode={mode} data-bits={initialBits}>
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<div class="top">
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<div class="left-brand">
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<!-- Replace with your logo/img -->
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<div class="brand-box" aria-hidden="true">Computing:Box</div>
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</div>
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<div class="display" aria-live="polite">
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<div class="label">DENARY</div>
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<div id="denaryNumber" class="value">0</div>
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<div class="label">BINARY</div>
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<div id="binaryNumber" class="value mono">00000000</div>
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</div>
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<div class="actions">
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<button class="btn" type="button" data-action="custom-binary">Custom Binary</button>
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<button class="btn" type="button" data-action="custom-denary">Custom Denary</button>
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<button class="btn" type="button" data-action="shift-left">Left Shift</button>
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<button class="btn" type="button" data-action="shift-right">Right Shift</button>
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<div class="bits-control">
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<div class="bits-title">Bits</div>
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<div class="bits-buttons">
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<button class="btn small" type="button" data-action="bits-minus" aria-label="Decrease bits">−</button>
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<span id="bitsCount" class="bits-count">{initialBits}</span>
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<button class="btn small" type="button" data-action="bits-plus" aria-label="Increase bits">+</button>
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</div>
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</div>
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</div>
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</div>
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<div id="bitsRow" class="bits-row" aria-label="Binary bit switches"></div>
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</section>
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<script is:inline>
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(() => {
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const root = document.currentScript.closest(".binary-sim");
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const bitsRow = root.querySelector("#bitsRow");
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const binaryEl = root.querySelector("#binaryNumber");
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const denaryEl = root.querySelector("#denaryNumber");
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const bitsCountEl = root.querySelector("#bitsCount");
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let bitCount = parseInt(root.dataset.bits || "8", 10);
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const minBits = 4;
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const maxBits = 16;
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// state: array of 0/1, MSB at index 0
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let bits = new Array(bitCount).fill(0);
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function placeValues(n) {
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// unsigned place values: [2^(n-1), ..., 2^0]
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return Array.from({ length: n }, (_, i) => 2 ** (n - 1 - i));
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}
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function bitsToDenary(bitsArr) {
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const pv = placeValues(bitsArr.length);
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return bitsArr.reduce((acc, b, i) => acc + (b ? pv[i] : 0), 0);
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}
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function render() {
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const binaryStr = bits.join("");
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binaryEl.textContent = binaryStr;
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denaryEl.textContent = String(bitsToDenary(bits));
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bitsCountEl.textContent = String(bitCount);
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const pv = placeValues(bitCount);
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bitsRow.innerHTML = pv.map((value, i) => {
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const id = `bit_${bitCount}_${i}`;
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const checked = bits[i] === 1 ? "checked" : "";
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return `
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<div class="bit-col">
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<div class="bulb ${bits[i] ? "on" : "off"}" aria-hidden="true"></div>
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<div class="place">${value}</div>
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<label class="switch" for="${id}">
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<input id="${id}" type="checkbox" ${checked} data-index="${i}">
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<span class="slider" aria-hidden="true"></span>
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<span class="sr-only">Toggle bit value ${value}</span>
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</label>
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</div>
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`;
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}).join("");
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}
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function setBitsFromBinaryString(str) {
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// allow shorter input; pad left
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const clean = (str || "").trim();
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if (!/^[01]+$/.test(clean) || clean.length > bitCount) return false;
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const padded = clean.padStart(bitCount, "0");
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bits = padded.split("").map(c => c === "1" ? 1 : 0);
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return true;
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}
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function setBitsFromDenary(num) {
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if (!Number.isInteger(num)) return false;
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const max = (2 ** bitCount) - 1;
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if (num < 0 || num > max) return false;
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const bin = num.toString(2).padStart(bitCount, "0");
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bits = bin.split("").map(c => c === "1" ? 1 : 0);
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return true;
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}
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function shiftLeft() {
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bits = bits.slice(1).concat(0);
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}
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function shiftRight() {
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bits = [0].concat(bits.slice(0, -1));
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}
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function resizeBits(newCount) {
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const clamped = Math.max(minBits, Math.min(maxBits, newCount));
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if (clamped === bitCount) return;
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// keep value as best as possible: preserve LSBs when resizing
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const currentBinary = bits.join("");
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bitCount = clamped;
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bits = new Array(bitCount).fill(0);
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const take = currentBinary.slice(-bitCount);
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setBitsFromBinaryString(take);
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}
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// Switch input handler
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bitsRow.addEventListener("change", (e) => {
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const input = e.target;
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if (!(input instanceof HTMLInputElement)) return;
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const idx = parseInt(input.dataset.index || "-1", 10);
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if (idx < 0) return;
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bits[idx] = input.checked ? 1 : 0;
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render();
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});
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// Button actions
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root.querySelector(".actions").addEventListener("click", (e) => {
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const btn = e.target.closest("button[data-action]");
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if (!btn) return;
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const action = btn.dataset.action;
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if (action === "custom-binary") {
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const entered = prompt(`Enter a ${bitCount}-bit binary value (0s and 1s):`, bits.join(""));
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if (entered === null) return;
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if (!setBitsFromBinaryString(entered)) {
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alert(`Invalid binary. Use only 0 and 1, up to ${bitCount} digits.`);
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return;
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}
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render();
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}
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if (action === "custom-denary") {
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const max = (2 ** bitCount) - 1;
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const entered = prompt(`Enter a denary value (0 to ${max}):`, String(bitsToDenary(bits)));
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if (entered === null) return;
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const num = Number.parseInt(entered, 10);
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if (!setBitsFromDenary(num)) {
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alert(`Invalid denary. Enter a whole number from 0 to ${max}.`);
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return;
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}
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render();
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}
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if (action === "shift-left") { shiftLeft(); render(); }
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if (action === "shift-right") { shiftRight(); render(); }
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if (action === "bits-minus") { resizeBits(bitCount - 1); render(); }
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if (action === "bits-plus") { resizeBits(bitCount + 1); render(); }
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});
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// initial
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render();
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})();
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</script>
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<style>
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/* Layout */
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.binary-sim {
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padding: 2rem 1rem 3rem;
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}
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.top {
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display: grid;
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grid-template-columns: 260px 1fr 220px;
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gap: 1.5rem;
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align-items: start;
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}
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@media (max-width: 980px) {
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.top {
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grid-template-columns: 1fr;
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}
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.actions {
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display: grid;
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grid-template-columns: 1fr 1fr;
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}
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}
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/* Brand placeholder */
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.brand-box {
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width: 180px;
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height: 180px;
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border-radius: 12px;
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display: grid;
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place-items: center;
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font-weight: 700;
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opacity: 0.9;
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border: 1px solid rgba(255,255,255,0.08);
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background: rgba(255,255,255,0.04);
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}
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/* Display */
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.display {
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text-align: center;
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padding: 1rem;
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}
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.label {
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letter-spacing: 0.12em;
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opacity: 0.85;
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margin-top: 0.5rem;
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}
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.value {
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font-size: 3rem;
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line-height: 1.1;
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margin: 0.25rem 0 0.75rem;
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font-weight: 700;
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}
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.mono {
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font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
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}
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/* Buttons */
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.actions {
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display: flex;
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flex-direction: column;
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gap: 0.75rem;
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}
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.btn {
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border: 0;
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border-radius: 10px;
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padding: 0.75rem 1rem;
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font-weight: 600;
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cursor: pointer;
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background: rgba(255,255,255,0.08);
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color: inherit;
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}
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.btn:hover { background: rgba(255,255,255,0.12); }
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.btn.small {
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padding: 0.45rem 0.75rem;
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border-radius: 10px;
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}
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.bits-control {
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margin-top: 0.25rem;
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padding-top: 0.5rem;
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border-top: 1px solid rgba(255,255,255,0.08);
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}
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.bits-title { opacity: 0.8; margin-bottom: 0.35rem; }
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.bits-buttons {
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display: flex;
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align-items: center;
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gap: 0.5rem;
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}
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.bits-count {
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min-width: 2ch;
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text-align: center;
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font-weight: 700;
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}
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/* Bits row */
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.bits-row {
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margin-top: 2rem;
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display: grid;
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grid-template-columns: repeat(auto-fit, minmax(88px, 1fr));
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gap: 1.25rem;
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align-items: end;
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}
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.bit-col {
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text-align: center;
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padding: 0.5rem 0.25rem;
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}
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.place {
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margin: 0.5rem 0 0.5rem;
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||||
font-size: 2rem;
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||||
font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
|
||||
}
|
||||
|
||||
/* Bulb */
|
||||
.bulb {
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||||
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>
|
||||
@@ -11,12 +11,6 @@ const { title = "Computing:Box" } = Astro.props;
|
||||
<meta charset="utf-8" />
|
||||
<meta name="viewport" content="width=device-width,initial-scale=1" />
|
||||
<title>{title}</title>
|
||||
|
||||
<!-- Global site styling -->
|
||||
<link rel="stylesheet" href="/styles/site.css" />
|
||||
|
||||
<!-- Page specific styles can be added by each page -->
|
||||
<slot name="head" />
|
||||
</head>
|
||||
|
||||
<body>
|
||||
@@ -27,3 +21,15 @@ const { title = "Computing:Box" } = Astro.props;
|
||||
<Footer />
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<style>
|
||||
:global(html, body) {
|
||||
height: 100%;
|
||||
}
|
||||
:global(body) {
|
||||
margin: 0;
|
||||
}
|
||||
.page {
|
||||
min-height: calc(100vh - 64px - 120px); /* header + footer-ish */
|
||||
}
|
||||
</style>
|
||||
|
||||
@@ -1,75 +1,122 @@
|
||||
---
|
||||
import BaseLayout from "../layouts/BaseLayout.astro";
|
||||
import "../styles/binary.css";
|
||||
|
||||
// keeps JS in src/ and lets Vite/Astro bundle it properly
|
||||
const scriptUrl = Astro.resolve("../scripts/binary.js");
|
||||
---
|
||||
|
||||
<BaseLayout title="Binary | Computing:Box">
|
||||
<link rel="stylesheet" href="/styles/binary.css" />
|
||||
<!doctype html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="utf-8" />
|
||||
<meta name="viewport" content="width=device-width,initial-scale=1" />
|
||||
<title>Binary | Computing:Box</title>
|
||||
|
||||
<section class="binaryWrap">
|
||||
<div class="topGrid">
|
||||
<!-- LEFT -->
|
||||
<div>
|
||||
<div class="readout">
|
||||
<div class="label">Denary</div>
|
||||
<div id="denaryNumber" class="num denary">0</div>
|
||||
<script type="module" src={scriptUrl}></script>
|
||||
</head>
|
||||
|
||||
<div class="label">Binary</div>
|
||||
<div id="binaryNumber" class="num binary">00000000</div>
|
||||
<body>
|
||||
<!-- Your site header/footer are already present in your layout/screenshots.
|
||||
If this page is wrapped by a global Layout, leave it there.
|
||||
If not, keep your existing header/footer includes here. -->
|
||||
|
||||
<div class="controls">
|
||||
<button class="btn" id="btnCustomBinary" type="button">Custom Binary</button>
|
||||
<button class="btn" id="btnCustomDenary" type="button">Custom Denary</button>
|
||||
<button class="btn" id="btnShiftLeft" type="button">Left Shift</button>
|
||||
<button class="btn" id="btnShiftRight" type="button">Right Shift</button>
|
||||
<main class="wrap">
|
||||
<section class="topGrid">
|
||||
<!-- LEFT: readout + buttons -->
|
||||
<div>
|
||||
<div class="readout">
|
||||
<div class="label">Denary</div>
|
||||
<div id="denaryNumber" class="num denaryValue">0</div>
|
||||
|
||||
<div class="label">Binary</div>
|
||||
<div id="binaryNumber" class="num binaryValue">0</div>
|
||||
|
||||
<!-- Orange box: custom on one row, shift on next row -->
|
||||
<div class="controls">
|
||||
<div class="controlRow">
|
||||
<button class="btn btnPrimary" id="btnCustomBinary" type="button">Custom Binary</button>
|
||||
<button class="btn btnPrimary" id="btnCustomDenary" type="button">Custom Denary</button>
|
||||
</div>
|
||||
<div class="controlRow">
|
||||
<button class="btn" id="btnShiftLeft" type="button">Left Shift</button>
|
||||
<button class="btn" id="btnShiftRight" type="button">Right Shift</button>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="divider"></div>
|
||||
|
||||
<!-- Bits render here -->
|
||||
<section class="bits" id="bitsGrid" aria-label="Bit switches"></section>
|
||||
</div>
|
||||
|
||||
<div class="divider"></div>
|
||||
<!-- RIGHT: actions + mode + bit width -->
|
||||
<aside class="panelCol">
|
||||
<!-- Red box: move these buttons to the panel -->
|
||||
<div class="card">
|
||||
<div class="cardTitle">Actions</div>
|
||||
|
||||
<!-- Bit rows injected by JS -->
|
||||
<section id="bitsRows" class="bitsRows" aria-label="Bit switches"></section>
|
||||
</div>
|
||||
<div class="actionGrid">
|
||||
<button class="btn" id="btnClear" type="button">Clear</button>
|
||||
|
||||
<!-- RIGHT -->
|
||||
<aside class="panelCol">
|
||||
<div class="card">
|
||||
<div class="cardTitle">Mode</div>
|
||||
<button class="btn btnSpin" id="btnDec1" type="button" aria-label="Decrease by 1">−1</button>
|
||||
<button class="btn btnSpin" id="btnInc1" type="button" aria-label="Increase by 1">+1</button>
|
||||
|
||||
<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>
|
||||
|
||||
<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>
|
||||
|
||||
<div class="card">
|
||||
<div class="cardTitle">Bit width</div>
|
||||
|
||||
<div class="bitWidthRow">
|
||||
<button class="miniBtn" id="btnBitsDown" type="button" aria-label="Decrease bits">−</button>
|
||||
|
||||
<div class="bitInputWrap">
|
||||
<div class="bitInputLabel">Bits</div>
|
||||
<input id="bitsInput" class="bitInput" type="number" inputmode="numeric" min="4" max="64" step="1" value="8" />
|
||||
<button class="btn" id="btnAutoRandom" type="button">Auto Random</button>
|
||||
</div>
|
||||
|
||||
<button class="miniBtn" id="btnBitsUp" type="button" aria-label="Increase bits">+</button>
|
||||
<div class="hint">
|
||||
−1/+1 steps the current value by one. Auto Random runs briefly then stops automatically.
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="hint">Minimum 4 bits, maximum 64 bits.</div>
|
||||
</div>
|
||||
</aside>
|
||||
</div>
|
||||
</section>
|
||||
<div class="card">
|
||||
<div class="cardTitle">Mode</div>
|
||||
|
||||
<script type="module" src="/scripts/binary.js"></script>
|
||||
</BaseLayout>
|
||||
<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>
|
||||
|
||||
<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>
|
||||
|
||||
<div class="card">
|
||||
<div class="cardTitle">Bit width</div>
|
||||
|
||||
<div class="bitWidthRow">
|
||||
<button class="miniBtn" id="btnBitsDown" type="button" aria-label="Decrease bits">−</button>
|
||||
|
||||
<div class="bitInputWrap">
|
||||
<div class="bitInputLabel">Bits</div>
|
||||
<input
|
||||
id="bitsInput"
|
||||
class="bitInput"
|
||||
type="number"
|
||||
inputmode="numeric"
|
||||
min="1"
|
||||
max="64"
|
||||
step="1"
|
||||
value="8"
|
||||
aria-label="Number of bits"
|
||||
/>
|
||||
</div>
|
||||
|
||||
<button class="miniBtn" id="btnBitsUp" type="button" aria-label="Increase bits">+</button>
|
||||
</div>
|
||||
|
||||
<div class="hint">Minimum 1 bit, maximum 64 bits.</div>
|
||||
</div>
|
||||
</aside>
|
||||
</section>
|
||||
</main>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
390
src/scripts/binary.js
Normal file
390
src/scripts/binary.js
Normal file
@@ -0,0 +1,390 @@
|
||||
/* Binary simulator (Unsigned + Two's complement)
|
||||
- bits 1..64
|
||||
- wrap bits every 8 visually (CSS), no scrollbars
|
||||
- bulbs always update in BOTH modes
|
||||
- MSB label shows negative weight in two's complement (e.g. -128)
|
||||
*/
|
||||
|
||||
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 btnDec1 = document.getElementById("btnDec1");
|
||||
const btnInc1 = document.getElementById("btnInc1");
|
||||
const btnAutoRandom = document.getElementById("btnAutoRandom");
|
||||
|
||||
let bitCount = clampInt(Number(bitsInput?.value ?? 8), 1, 64);
|
||||
|
||||
// state is MSB -> LSB
|
||||
let bits = new Array(bitCount).fill(false);
|
||||
|
||||
let autoTimer = null;
|
||||
|
||||
function clampInt(n, min, max){
|
||||
n = Number(n);
|
||||
if (!Number.isFinite(n)) return min;
|
||||
n = Math.floor(n);
|
||||
if (n < min) return min;
|
||||
if (n > max) return max;
|
||||
return n;
|
||||
}
|
||||
|
||||
function pow2Big(n){
|
||||
// n is number (0..63)
|
||||
return 1n << BigInt(n);
|
||||
}
|
||||
|
||||
function isTwos(){
|
||||
return !!modeToggle?.checked;
|
||||
}
|
||||
|
||||
function getRange(){
|
||||
// returns { min: BigInt, max: BigInt, mod: BigInt }
|
||||
const n = bitCount;
|
||||
const mod = pow2Big(n);
|
||||
if (!isTwos()){
|
||||
return { min: 0n, max: mod - 1n, mod };
|
||||
}
|
||||
// two's: [-2^(n-1), 2^(n-1)-1]
|
||||
if (n === 1){
|
||||
return { min: -1n, max: 0n, mod };
|
||||
}
|
||||
const half = pow2Big(n - 1);
|
||||
return { min: -half, max: half - 1n, mod };
|
||||
}
|
||||
|
||||
function currentValueBig(){
|
||||
// interpret current bits as unsigned or two's complement signed
|
||||
let unsigned = 0n;
|
||||
for (let i = 0; i < bitCount; i++){
|
||||
if (!bits[i]) continue;
|
||||
const shift = BigInt(bitCount - 1 - i);
|
||||
unsigned += 1n << shift;
|
||||
}
|
||||
|
||||
if (!isTwos()){
|
||||
return unsigned;
|
||||
}
|
||||
|
||||
// signed decode
|
||||
const signBit = bits[0];
|
||||
if (!signBit) return unsigned;
|
||||
|
||||
const { mod } = getRange();
|
||||
return unsigned - mod; // two's complement negative
|
||||
}
|
||||
|
||||
function setFromUnsignedBig(u){
|
||||
// u in [0, 2^n-1]
|
||||
const n = bitCount;
|
||||
for (let i = 0; i < n; i++){
|
||||
const shift = BigInt(n - 1 - i);
|
||||
bits[i] = ((u >> shift) & 1n) === 1n;
|
||||
}
|
||||
}
|
||||
|
||||
function setFromValueBig(v){
|
||||
// v is signed depending on mode. We convert to bit pattern.
|
||||
const { min, max, mod } = getRange();
|
||||
|
||||
if (v < min) v = min;
|
||||
if (v > max) v = max;
|
||||
|
||||
if (!isTwos()){
|
||||
setFromUnsignedBig(v);
|
||||
return;
|
||||
}
|
||||
|
||||
// two's: if negative, add 2^n
|
||||
let u = v;
|
||||
if (u < 0n) u = u + mod;
|
||||
setFromUnsignedBig(u);
|
||||
}
|
||||
|
||||
function buildBits(){
|
||||
bitsGrid.innerHTML = "";
|
||||
|
||||
for (let i = 0; i < bitCount; i++){
|
||||
const placePow = bitCount - 1 - i;
|
||||
const unsignedWeight = pow2Big(placePow);
|
||||
|
||||
// label weight depends on mode (MSB negative in two's)
|
||||
let label = unsignedWeight.toString();
|
||||
if (isTwos() && i === 0){
|
||||
label = "-" + unsignedWeight.toString();
|
||||
}
|
||||
|
||||
const bit = document.createElement("div");
|
||||
bit.className = "bit";
|
||||
bit.innerHTML = `
|
||||
<div class="bulb" id="bulb-${i}" aria-hidden="true">💡</div>
|
||||
<div class="bitVal">${label}</div>
|
||||
<label class="switch" aria-label="Toggle bit ${label}">
|
||||
<input type="checkbox" data-index="${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;
|
||||
updateReadout();
|
||||
});
|
||||
});
|
||||
|
||||
syncUI();
|
||||
}
|
||||
|
||||
function binaryStringGrouped(){
|
||||
const raw = bits.map(b => (b ? "1" : "0")).join("");
|
||||
// group every 8 from the RIGHT (LSB side) so long widths look sane
|
||||
// Example: 11 bits -> 00000000 000 (as in your screenshot)
|
||||
const groups = [];
|
||||
for (let end = raw.length; end > 0; end -= 8){
|
||||
const start = Math.max(0, end - 8);
|
||||
groups.unshift(raw.slice(start, end));
|
||||
}
|
||||
return groups.join(" ");
|
||||
}
|
||||
|
||||
function updateModeHint(){
|
||||
if (!modeHint) return;
|
||||
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.";
|
||||
}
|
||||
}
|
||||
|
||||
function updateReadout(){
|
||||
const v = currentValueBig();
|
||||
|
||||
// display
|
||||
denaryEl.textContent = v.toString();
|
||||
binaryEl.textContent = binaryStringGrouped();
|
||||
|
||||
// bulbs update ALWAYS (mode should not affect bulb on/off)
|
||||
for (let i = 0; i < bitCount; i++){
|
||||
const bulb = document.getElementById(`bulb-${i}`);
|
||||
if (bulb) bulb.classList.toggle("on", bits[i]);
|
||||
}
|
||||
}
|
||||
|
||||
function syncUI(){
|
||||
// sync switch positions
|
||||
bitsGrid.querySelectorAll('input[type="checkbox"][data-index]').forEach((input) => {
|
||||
const idx = Number(input.dataset.index);
|
||||
input.checked = !!bits[idx];
|
||||
});
|
||||
|
||||
updateReadout();
|
||||
}
|
||||
|
||||
function clearBits(){
|
||||
bits = new Array(bitCount).fill(false);
|
||||
syncUI();
|
||||
}
|
||||
|
||||
function shiftLeft(){
|
||||
// logical left shift: drop MSB, add 0 at LSB
|
||||
bits.shift();
|
||||
bits.push(false);
|
||||
syncUI();
|
||||
}
|
||||
|
||||
function shiftRight(){
|
||||
// logical right shift: drop LSB, add 0 at MSB
|
||||
bits.pop();
|
||||
bits.unshift(false);
|
||||
syncUI();
|
||||
}
|
||||
|
||||
function setFromBinaryPrompt(){
|
||||
const v = prompt(`Enter binary (${bitCount} bits). Spaces allowed:`);
|
||||
if (v === null) return;
|
||||
|
||||
const clean = String(v).replace(/\s+/g, "");
|
||||
if (!/^[01]+$/.test(clean)){
|
||||
alert("Invalid input. Use only 0 and 1 (spaces allowed).");
|
||||
return;
|
||||
}
|
||||
|
||||
const padded = clean.slice(-bitCount).padStart(bitCount, "0");
|
||||
bits = [...padded].map(ch => ch === "1");
|
||||
syncUI();
|
||||
}
|
||||
|
||||
function setFromDenaryPrompt(){
|
||||
const v = prompt(`Enter denary (${isTwos() ? "signed" : "unsigned"}).`);
|
||||
if (v === null) return;
|
||||
|
||||
// BigInt parse (handles negatives)
|
||||
let n;
|
||||
try {
|
||||
n = BigInt(String(v).trim());
|
||||
} catch {
|
||||
alert("Invalid number.");
|
||||
return;
|
||||
}
|
||||
|
||||
setFromValueBig(n);
|
||||
syncUI();
|
||||
}
|
||||
|
||||
function stepBy(delta){
|
||||
const v = currentValueBig();
|
||||
const next = v + BigInt(delta);
|
||||
|
||||
// wrap within valid range
|
||||
const { min, max, mod } = getRange();
|
||||
|
||||
let wrapped = next;
|
||||
if (!isTwos()){
|
||||
// unsigned wrap: modulo 2^n
|
||||
wrapped = ((next % mod) + mod) % mod;
|
||||
} else {
|
||||
// signed wrap across [min..max]
|
||||
const span = max - min + 1n; // equals 2^n
|
||||
wrapped = next;
|
||||
while (wrapped > max) wrapped -= span;
|
||||
while (wrapped < min) wrapped += span;
|
||||
}
|
||||
|
||||
setFromValueBig(wrapped);
|
||||
syncUI();
|
||||
}
|
||||
|
||||
function autoRandomOnce(){
|
||||
// runs briefly then stops automatically
|
||||
if (autoTimer){
|
||||
clearInterval(autoTimer);
|
||||
autoTimer = null;
|
||||
btnAutoRandom.textContent = "Auto Random";
|
||||
return;
|
||||
}
|
||||
|
||||
btnAutoRandom.textContent = "Auto Random (Running…)";
|
||||
const { min, max, mod } = getRange();
|
||||
|
||||
const start = Date.now();
|
||||
const durationMs = 1800; // short burst
|
||||
const tickMs = 90;
|
||||
|
||||
autoTimer = setInterval(() => {
|
||||
const now = Date.now();
|
||||
if (now - start >= durationMs){
|
||||
clearInterval(autoTimer);
|
||||
autoTimer = null;
|
||||
btnAutoRandom.textContent = "Auto Random";
|
||||
return;
|
||||
}
|
||||
|
||||
// pick a random unsigned pattern 0..2^n-1 then interpret via mode
|
||||
// (this keeps distribution consistent even for signed mode)
|
||||
const r = randomBigIntBelow(mod);
|
||||
setFromUnsignedBig(r);
|
||||
syncUI();
|
||||
}, tickMs);
|
||||
}
|
||||
|
||||
function randomBigIntBelow(maxExclusive){
|
||||
// maxExclusive up to 2^64
|
||||
// Use crypto if available, otherwise fallback (still fine for teaching tool)
|
||||
const n = bitCount;
|
||||
|
||||
if (globalThis.crypto && crypto.getRandomValues){
|
||||
const bytes = Math.ceil(n / 8);
|
||||
const buf = new Uint8Array(bytes);
|
||||
|
||||
while (true){
|
||||
crypto.getRandomValues(buf);
|
||||
let val = 0n;
|
||||
for (const b of buf){
|
||||
val = (val << 8n) + BigInt(b);
|
||||
}
|
||||
|
||||
// mask extra bits
|
||||
const extra = BigInt(bytes * 8 - n);
|
||||
if (extra > 0n) val = val & ((1n << BigInt(n)) - 1n);
|
||||
|
||||
if (val < maxExclusive) return val;
|
||||
}
|
||||
}
|
||||
|
||||
// fallback
|
||||
const maxNum = Number.MAX_SAFE_INTEGER;
|
||||
let val = BigInt(Math.floor(Math.random() * maxNum));
|
||||
return val % maxExclusive;
|
||||
}
|
||||
|
||||
function setBitCount(nextCount){
|
||||
nextCount = clampInt(nextCount, 1, 64);
|
||||
bitCount = nextCount;
|
||||
bitsInput.value = String(bitCount);
|
||||
|
||||
// preserve current value if possible by re-encoding it into new width
|
||||
const v = currentValueBig();
|
||||
bits = new Array(bitCount).fill(false);
|
||||
setFromValueBig(v);
|
||||
|
||||
buildBits();
|
||||
updateModeHint();
|
||||
}
|
||||
|
||||
function onModeChange(){
|
||||
updateModeHint();
|
||||
|
||||
// rebuild labels so MSB shows negative weight in two's mode
|
||||
// preserve current *bit pattern* (not numeric), because students are toggling interpretation
|
||||
const currentPattern = bits.slice();
|
||||
|
||||
buildBits();
|
||||
bits = currentPattern.slice(0, bitCount);
|
||||
|
||||
// if length changed (shouldn't), pad
|
||||
if (bits.length < bitCount){
|
||||
bits = bits.concat(new Array(bitCount - bits.length).fill(false));
|
||||
}
|
||||
|
||||
// rebuild labels again (already done), then resync
|
||||
syncUI();
|
||||
}
|
||||
|
||||
/* ----------------- Hooks ----------------- */
|
||||
btnShiftLeft?.addEventListener("click", shiftLeft);
|
||||
btnShiftRight?.addEventListener("click", shiftRight);
|
||||
btnCustomBinary?.addEventListener("click", setFromBinaryPrompt);
|
||||
btnCustomDenary?.addEventListener("click", setFromDenaryPrompt);
|
||||
|
||||
btnClear?.addEventListener("click", clearBits);
|
||||
btnDec1?.addEventListener("click", () => stepBy(-1));
|
||||
btnInc1?.addEventListener("click", () => stepBy(+1));
|
||||
btnAutoRandom?.addEventListener("click", autoRandomOnce);
|
||||
|
||||
btnBitsUp?.addEventListener("click", () => setBitCount(bitCount + 1));
|
||||
btnBitsDown?.addEventListener("click", () => setBitCount(bitCount - 1));
|
||||
bitsInput?.addEventListener("change", () => setBitCount(Number(bitsInput.value)));
|
||||
|
||||
modeToggle?.addEventListener("change", onModeChange);
|
||||
|
||||
/* ----------------- Init ----------------- */
|
||||
updateModeHint();
|
||||
buildBits();
|
||||
335
src/styles/binary.css
Normal file
335
src/styles/binary.css
Normal file
@@ -0,0 +1,335 @@
|
||||
: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);
|
||||
}
|
||||
|
||||
@font-face{
|
||||
font-family: "DSEG7ClassicRegular";
|
||||
src:
|
||||
url("/fonts/DSEG7Classic-Regular.woff2") format("woff2"),
|
||||
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;
|
||||
}
|
||||
|
||||
.topGrid{
|
||||
display:grid;
|
||||
grid-template-columns: 1fr 340px;
|
||||
gap: 28px;
|
||||
align-items:start;
|
||||
}
|
||||
|
||||
.readout{
|
||||
background: transparent;
|
||||
text-align:center;
|
||||
padding: 10px 10px 0;
|
||||
}
|
||||
|
||||
.label{
|
||||
letter-spacing: .18em;
|
||||
font-weight: 800;
|
||||
color: var(--muted);
|
||||
text-transform: uppercase;
|
||||
font-size: 13px;
|
||||
margin-top: 10px;
|
||||
}
|
||||
|
||||
.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);
|
||||
}
|
||||
|
||||
.denaryValue{
|
||||
font-size: 72px;
|
||||
line-height: 1.0;
|
||||
margin: 6px 0 10px;
|
||||
}
|
||||
|
||||
.binaryValue{
|
||||
font-size: 52px;
|
||||
letter-spacing: .10em;
|
||||
line-height: 1.0;
|
||||
margin: 6px 0 14px;
|
||||
}
|
||||
|
||||
.controls{
|
||||
margin-top: 10px;
|
||||
display:flex;
|
||||
flex-direction:column;
|
||||
gap: 10px;
|
||||
align-items:center;
|
||||
}
|
||||
|
||||
.controlRow{
|
||||
display:flex;
|
||||
gap: 12px;
|
||||
justify-content:center;
|
||||
flex-wrap:nowrap;
|
||||
}
|
||||
|
||||
.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); }
|
||||
|
||||
.btnPrimary{
|
||||
background: rgba(51,255,122,.18);
|
||||
border-color: rgba(51,255,122,.45);
|
||||
box-shadow: 0 0 0 1px rgba(51,255,122,.10) inset;
|
||||
}
|
||||
|
||||
.btnSpin{
|
||||
min-width: 120px;
|
||||
font-size: 18px;
|
||||
padding: 12px 10px;
|
||||
}
|
||||
|
||||
.divider{
|
||||
margin-top: 26px;
|
||||
border-top: 1px solid var(--line);
|
||||
}
|
||||
|
||||
.panelCol{
|
||||
display:flex;
|
||||
flex-direction:column;
|
||||
gap:14px;
|
||||
}
|
||||
|
||||
.card{
|
||||
background: var(--panel2);
|
||||
border: 1px solid rgba(255,255,255,.10);
|
||||
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: 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;
|
||||
}
|
||||
|
||||
.actionGrid{
|
||||
display:grid;
|
||||
grid-template-columns: 1fr 1fr;
|
||||
gap: 10px;
|
||||
}
|
||||
.actionGrid .btn{
|
||||
min-width: 0;
|
||||
width: 100%;
|
||||
}
|
||||
|
||||
/* -------- Bits grid: wrap every 8, centered when <8, no scrollbar -------- */
|
||||
.bits{
|
||||
margin-top: 22px;
|
||||
padding-top: 18px;
|
||||
|
||||
display: grid;
|
||||
grid-template-columns: repeat(8, 92px);
|
||||
gap: 18px;
|
||||
justify-content: center;
|
||||
|
||||
width: fit-content;
|
||||
max-width: 100%;
|
||||
margin-left: auto;
|
||||
margin-right: auto;
|
||||
}
|
||||
|
||||
.bit{
|
||||
display:flex;
|
||||
flex-direction:column;
|
||||
align-items:center;
|
||||
gap: 10px;
|
||||
padding: 8px 4px;
|
||||
}
|
||||
|
||||
/* Bulb: emoji 💡 larger, grey when off, glowing when on */
|
||||
.bulb{
|
||||
font-size: 28px; /* bigger bulb */
|
||||
line-height: 1;
|
||||
filter: grayscale(100%) brightness(.85);
|
||||
opacity: .65;
|
||||
transform: translateY(2px);
|
||||
user-select: none;
|
||||
}
|
||||
.bulb.on{
|
||||
filter: none;
|
||||
opacity: 1;
|
||||
text-shadow: 0 0 18px rgba(255, 216, 107, .55);
|
||||
}
|
||||
|
||||
/* Bit place value */
|
||||
.bitVal{
|
||||
font-family: "DSEG7ClassicRegular", ui-monospace, monospace;
|
||||
font-size: 30px;
|
||||
color: var(--text);
|
||||
opacity: .95;
|
||||
line-height: 1;
|
||||
min-height: 34px;
|
||||
}
|
||||
|
||||
/* Per-bit switch */
|
||||
.bit .switch{
|
||||
transform: scale(1.05);
|
||||
}
|
||||
|
||||
@media (max-width: 980px){
|
||||
.topGrid{ grid-template-columns: 1fr; }
|
||||
.denaryValue{ font-size: 64px; }
|
||||
.binaryValue{ font-size: 46px; }
|
||||
.btn{ min-width: 140px; }
|
||||
}
|
||||
|
||||
@media (max-width: 520px){
|
||||
.bits{
|
||||
grid-template-columns: repeat(4, 92px);
|
||||
}
|
||||
}
|
||||
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;
|
||||
}
|
||||
Reference in New Issue
Block a user