Update command line interface with interactive typing and visual feedback
Refactors the command line interface to include an interactive SSH command input with real-time visual feedback, dynamic button icons, and animated responses to user commands, including navigation to documentation. Replit-Commit-Author: Agent Replit-Commit-Session-Id: 6def8112-39d2-4641-b93b-f39108179f33 Replit-Commit-Checkpoint-Type: full_checkpoint Replit-Commit-Event-Id: 49353dc6-fccb-41d3-8b94-6617238c72ba Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/42ae33dd-8759-4196-85a5-434465c72ece/6def8112-39d2-4641-b93b-f39108179f33/tF7dS0e Replit-Helium-Checkpoint-Created: true
This commit is contained in:
keshavananddev
273
src/main.ts
273
src/main.ts
@@ -1,26 +1,64 @@
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import './style.css';
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const COMMAND = 'ssh portfolio@keshavanand.net';
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const PROMPT_TAIL = ' '; // single space between prefix and user input
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const typedEl = document.getElementById('typed') as HTMLSpanElement;
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const userEl = document.getElementById('userInput') as HTMLSpanElement;
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const caretEl = document.getElementById('caret') as HTMLSpanElement;
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const commandBox = document.getElementById('commandBox') as HTMLDivElement;
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const copyBtn = document.getElementById('copyBtn') as HTMLButtonElement;
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const copyIcon = document.getElementById('copyIcon') as unknown as SVGSVGElement;
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const actionBtn = document.getElementById('actionBtn') as HTMLButtonElement;
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const iconPath = document.getElementById('iconPath') as unknown as SVGPathElement;
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const docsLink = document.getElementById('docsLink') as HTMLAnchorElement;
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const reduceMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
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/* ---------- Typewriter with a small "decoder" scramble ---------- */
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/* ---------- icons ---------- */
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const COPY_PATH =
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'M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z';
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// "↵" return arrow — a hooked left arrow (very recognizable as Enter)
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const ENTER_PATH = 'M9 10l-5 5m0 0l5 5m-5-5h12a4 4 0 004-4V5';
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const CHECK_PATH = 'M5 13l4 4L19 7';
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function setIcon(d: string) {
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iconPath.setAttribute('d', d);
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}
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/* ---------- state ---------- */
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let userInput = '';
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let inputEnabled = false; // true once typewriter completes
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let isAutoTyping = false; // true while clicking-how-it-works animation runs
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function refreshUI() {
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userEl.textContent = userInput;
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if (userInput.length > 0) {
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setIcon(ENTER_PATH);
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actionBtn.setAttribute('aria-label', 'Run command');
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commandBox.classList.add('armed');
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} else {
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setIcon(COPY_PATH);
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actionBtn.setAttribute('aria-label', 'Copy command');
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commandBox.classList.remove('armed');
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}
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}
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/* ---------- typewriter intro (with scramble) ---------- */
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const SCRAMBLE = '!<>-_\\/[]{}—=+*^?#abcdef0123456789';
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function typeWithScramble(target: string, onDone?: () => void) {
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function sleep(ms: number) {
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return new Promise<void>((r) => setTimeout(r, ms));
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}
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function typeIntro(target: string, onDone?: () => void) {
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let resolved = '';
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let i = 0;
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function nextChar() {
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if (i >= target.length) {
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typedEl.textContent = resolved;
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typedEl.textContent = resolved + PROMPT_TAIL;
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onDone?.();
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return;
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}
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@@ -44,57 +82,180 @@ function typeWithScramble(target: string, onDone?: () => void) {
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}
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if (reduceMotion) {
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typedEl.textContent = COMMAND;
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typedEl.textContent = COMMAND + PROMPT_TAIL;
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inputEnabled = true;
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} else {
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setTimeout(() => typeWithScramble(COMMAND), 180);
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setTimeout(() => typeIntro(COMMAND, () => {
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inputEnabled = true;
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}), 180);
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}
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/* ---------- Silent copy (no flashy feedback, just a brief icon swap) ---------- */
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/* ---------- copy ---------- */
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const COPY_PATH = 'M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z';
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const CHECK_PATH = 'M5 13l4 4L19 7';
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let iconResetTimer: number | undefined;
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function setIcon(d: string) {
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const path = copyIcon.querySelector('path');
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if (path) path.setAttribute('d', d);
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}
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let copyResetTimer: number | undefined;
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async function copy() {
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async function copyCommand() {
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try {
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await navigator.clipboard.writeText(COMMAND);
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setIcon(CHECK_PATH);
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window.clearTimeout(copyResetTimer);
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copyResetTimer = window.setTimeout(() => setIcon(COPY_PATH), 1200);
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window.clearTimeout(iconResetTimer);
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iconResetTimer = window.setTimeout(() => {
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// only reset if user hasn't started typing in the meantime
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if (userInput.length === 0) setIcon(COPY_PATH);
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}, 1100);
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} catch {
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/* clipboard can be blocked; do nothing */
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/* clipboard can be blocked */
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}
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}
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commandBox.addEventListener('click', copy);
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commandBox.addEventListener('keydown', (e) => {
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if (e.key === 'Enter' || e.key === ' ') {
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e.preventDefault();
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copy();
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/* ---------- submit ---------- */
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function submit() {
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const cmd = userInput.trim().toLowerCase();
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if (cmd === '') return;
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if (cmd === '-h' || cmd === '--help' || cmd === 'h' || cmd === 'help') {
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// brief flash, then navigate
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commandBox.classList.add('submit');
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setTimeout(() => {
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window.location.href = '/docs.html';
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}, 260);
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return;
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}
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});
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copyBtn.addEventListener('click', (e) => {
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if (cmd === 'clear' || cmd === 'cls') {
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userInput = '';
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refreshUI();
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return;
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}
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// unknown command — shake, then clear after a beat
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commandBox.classList.remove('shake');
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// force reflow so the animation restarts on rapid presses
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void commandBox.offsetWidth;
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commandBox.classList.add('shake');
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setTimeout(() => {
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commandBox.classList.remove('shake');
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userInput = '';
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refreshUI();
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}, 420);
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}
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/* ---------- keyboard input (after typewriter completes) ---------- */
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function onKeydown(e: KeyboardEvent) {
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if (!inputEnabled || isAutoTyping) return;
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// let browser shortcuts pass
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if (e.metaKey || e.ctrlKey || e.altKey) return;
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// ignore navigation keys we don't care about
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if (
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e.key === 'Tab' || e.key === 'ArrowLeft' || e.key === 'ArrowRight' ||
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e.key === 'ArrowUp' || e.key === 'ArrowDown' || e.key === 'Shift' ||
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e.key === 'CapsLock' || e.key === 'Meta' || e.key === 'Control' ||
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e.key === 'Alt'
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) return;
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if (e.key === 'Enter') {
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e.preventDefault();
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submit();
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return;
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}
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if (e.key === 'Backspace') {
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e.preventDefault();
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if (userInput.length > 0) {
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userInput = userInput.slice(0, -1);
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refreshUI();
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}
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return;
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}
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if (e.key === 'Escape') {
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e.preventDefault();
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userInput = '';
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refreshUI();
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return;
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}
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if (e.key.length === 1) {
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e.preventDefault();
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// cap input length so it doesn't overflow
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if (userInput.length < 32) {
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userInput += e.key;
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refreshUI();
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}
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}
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}
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document.addEventListener('keydown', onKeydown);
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/* ---------- click handlers on the box / action button ---------- */
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function actionClick() {
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if (userInput.length > 0) submit();
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else copyCommand();
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}
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actionBtn.addEventListener('click', (e) => {
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e.stopPropagation();
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copy();
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actionClick();
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});
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/* ---------- Cursor-reactive dot field ---------- */
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commandBox.addEventListener('click', (e) => {
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// don't double-fire when clicking the button
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if ((e.target as HTMLElement).closest('.action-btn')) return;
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actionClick();
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});
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/* ---------- auto-type from "how it works" link ---------- */
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async function autoTypeHelp() {
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if (!inputEnabled || isAutoTyping) return;
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isAutoTyping = true;
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// clear whatever the user had typed
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userInput = '';
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refreshUI();
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commandBox.classList.add('armed');
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await sleep(120);
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const text = '-h';
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for (const ch of text) {
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// small scramble for flair, then settle
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let cycles = 2;
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while (cycles > 0) {
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const sc = SCRAMBLE[Math.floor(Math.random() * SCRAMBLE.length)];
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userEl.textContent = userInput + sc;
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await sleep(38);
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cycles--;
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}
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userInput += ch;
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refreshUI();
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await sleep(70);
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}
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// brief pause so the user reads it
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await sleep(260);
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// visual "Enter pressed" — pulse the action button
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actionBtn.style.transform = 'scale(0.85)';
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setTimeout(() => { actionBtn.style.transform = ''; }, 140);
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await sleep(180);
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isAutoTyping = false;
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submit();
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}
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docsLink.addEventListener('click', (e) => {
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e.preventDefault();
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autoTypeHelp();
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});
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/* ---------- cursor-reactive dot field + click ripples ---------- */
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const canvas = document.getElementById('field') as HTMLCanvasElement;
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const ctx = canvas.getContext('2d')!;
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type Dot = {
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bx: number; // base x (CSS px)
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by: number; // base y (CSS px)
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ox: number; // offset x (current)
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oy: number; // offset y (current)
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};
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type Dot = { bx: number; by: number; ox: number; oy: number };
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let dots: Dot[] = [];
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let dpr = Math.max(1, window.devicePixelRatio || 1);
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@@ -102,23 +263,21 @@ let w = 0;
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let h = 0;
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const SPACING = 26;
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const RADIUS = 170; // influence radius around cursor
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const PUSH = 18; // max displacement in px
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const RADIUS = 170;
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const PUSH = 18;
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// Cursor position (CSS px). Lerped for smoothness.
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let targetX = -9999;
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let targetY = -9999;
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let curX = -9999;
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let curY = -9999;
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let active = false;
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// Click ripples — expanding rings that push dots outward as they pass.
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type Ripple = { x: number; y: number; born: number };
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const ripples: Ripple[] = [];
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const RIPPLE_LIFE = 900; // ms
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const RIPPLE_MAX = 520; // max radius in px
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const RIPPLE_BAND = 70; // ring thickness
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const RIPPLE_PUSH = 36; // peak displacement
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const RIPPLE_LIFE = 900;
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const RIPPLE_MAX = 520;
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const RIPPLE_BAND = 70;
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const RIPPLE_PUSH = 36;
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function build() {
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dpr = Math.max(1, window.devicePixelRatio || 1);
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@@ -131,7 +290,6 @@ function build() {
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ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
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dots = [];
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// pad outside viewport so the grid feels infinite during displacement
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const pad = SPACING;
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for (let y = -pad; y < h + pad; y += SPACING) {
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for (let x = -pad; x < w + pad; x += SPACING) {
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@@ -148,7 +306,6 @@ function onMove(x: number, y: number) {
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function spawnRipple(x: number, y: number) {
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ripples.push({ x, y, born: performance.now() });
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// cap to keep things light
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if (ripples.length > 8) ripples.shift();
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}
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@@ -174,7 +331,6 @@ const PEAK_ALPHA = 0.9;
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function frame() {
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const now = performance.now();
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// smooth cursor lerp
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if (!active) {
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targetX = -9999;
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targetY = -9999;
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@@ -182,17 +338,13 @@ function frame() {
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curX += (targetX - curX) * 0.18;
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curY += (targetY - curY) * 0.18;
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// expire dead ripples
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for (let i = ripples.length - 1; i >= 0; i--) {
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if (now - ripples[i].born > RIPPLE_LIFE) ripples.splice(i, 1);
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}
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// precompute ripple state
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const rippleState = ripples.map(rp => {
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const p = (now - rp.born) / RIPPLE_LIFE; // 0..1
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const radius = p * RIPPLE_MAX;
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const fade = 1 - p; // weakens over time
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return { x: rp.x, y: rp.y, radius, fade };
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const rippleState = ripples.map((rp) => {
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const p = (now - rp.born) / RIPPLE_LIFE;
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return { x: rp.x, y: rp.y, radius: p * RIPPLE_MAX, fade: 1 - p };
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});
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ctx.clearRect(0, 0, w, h);
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@@ -202,12 +354,12 @@ function frame() {
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for (let i = 0; i < dots.length; i++) {
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const d = dots[i];
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// --- cursor displacement ---
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const dx = d.bx - curX;
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const dy = d.by - curY;
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const d2 = dx * dx + dy * dy;
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let tx = 0, ty = 0;
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let tx = 0;
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let ty = 0;
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let strength = 0;
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if (d2 < r2) {
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@@ -218,7 +370,6 @@ function frame() {
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ty = (dy / dist) * strength * PUSH;
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}
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// --- ripple displacement (additive) ---
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let rippleStrength = 0;
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for (let k = 0; k < rippleState.length; k++) {
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const rp = rippleState[k];
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@@ -227,7 +378,7 @@ function frame() {
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const rdist = Math.sqrt(rdx * rdx + rdy * rdy) || 0.0001;
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const delta = Math.abs(rdist - rp.radius);
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if (delta < RIPPLE_BAND) {
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const ringT = 1 - delta / RIPPLE_BAND; // 0..1 across band
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const ringT = 1 - delta / RIPPLE_BAND;
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const s = ringT * ringT * rp.fade;
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tx += (rdx / rdist) * s * RIPPLE_PUSH;
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ty += (rdy / rdist) * s * RIPPLE_PUSH;
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@@ -235,14 +386,12 @@ function frame() {
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}
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}
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// smooth toward target offset
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d.ox += (tx - d.ox) * 0.22;
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d.oy += (ty - d.oy) * 0.22;
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const px = d.bx + d.ox;
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const py = d.by + d.oy;
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// combined visual strength (cursor + ripple, capped)
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const visStrength = Math.min(1, strength + rippleStrength);
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const alpha = BASE_ALPHA + (PEAK_ALPHA - BASE_ALPHA) * visStrength;
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const size = 1 + visStrength * 1.6;
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@@ -260,7 +409,6 @@ function frame() {
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ctx.fillRect(px - size / 2, py - size / 2, size, size);
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}
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// soft cursor glow
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if (active) {
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const grad = ctx.createRadialGradient(curX, curY, 0, curX, curY, RADIUS);
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grad.addColorStop(0, `rgba(${ACCENT_RGB}, 0.10)`);
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@@ -269,7 +417,6 @@ function frame() {
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ctx.fillRect(curX - RADIUS, curY - RADIUS, RADIUS * 2, RADIUS * 2);
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}
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// ripple ring outlines — very faint, just a hint
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for (let k = 0; k < rippleState.length; k++) {
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const rp = rippleState[k];
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if (rp.radius < 4) continue;
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@@ -286,10 +433,8 @@ function frame() {
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if (!reduceMotion) {
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requestAnimationFrame(frame);
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} else {
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// static render: just dim dots, no displacement
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ctx.fillStyle = `rgba(${BASE_RGB}, ${BASE_ALPHA})`;
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for (const d of dots) ctx.fillRect(d.bx, d.by, 1, 1);
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}
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// keep tsc happy about caretEl import (used via DOM)
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void caretEl;
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109
src/style.css
109
src/style.css
@@ -5,6 +5,7 @@
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--line: #1c1c20;
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--accent: #a6e3a1;
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--accent-soft: rgba(166, 227, 161, 0.22);
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--accent-strong: rgba(166, 227, 161, 0.55);
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--mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
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}
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||||
@@ -44,7 +45,7 @@ body {
|
||||
flex-direction: column;
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||||
align-items: center;
|
||||
justify-content: center;
|
||||
gap: 1.25rem;
|
||||
gap: 0.85rem;
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max-width: 580px;
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margin: 0 auto;
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padding: 2rem 1.75rem;
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||||
@@ -71,18 +72,43 @@ body {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
gap: 0.6rem;
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||||
cursor: pointer;
|
||||
cursor: text;
|
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user-select: none;
|
||||
transition: border-color 180ms ease;
|
||||
transition: border-color 200ms ease, box-shadow 200ms ease;
|
||||
position: relative;
|
||||
white-space: nowrap;
|
||||
overflow: hidden;
|
||||
}
|
||||
|
||||
.command-box:hover,
|
||||
.command-box:focus-visible {
|
||||
.command-box:hover {
|
||||
border-color: var(--accent-soft);
|
||||
outline: none;
|
||||
}
|
||||
|
||||
/* "armed" once user starts typing — invites Enter */
|
||||
.command-box.armed {
|
||||
border-color: var(--accent-strong);
|
||||
box-shadow: 0 0 0 1px rgba(166, 227, 161, 0.08), 0 0 24px rgba(166, 227, 161, 0.06);
|
||||
}
|
||||
|
||||
/* shake on invalid command */
|
||||
.command-box.shake {
|
||||
animation: shake 380ms cubic-bezier(.36,.07,.19,.97);
|
||||
border-color: rgba(243, 139, 168, 0.55);
|
||||
}
|
||||
|
||||
@keyframes shake {
|
||||
0%, 100% { transform: translateX(0); }
|
||||
15% { transform: translateX(-4px); }
|
||||
30% { transform: translateX(4px); }
|
||||
45% { transform: translateX(-3px); }
|
||||
60% { transform: translateX(3px); }
|
||||
80% { transform: translateX(-1px); }
|
||||
}
|
||||
|
||||
/* brief flash before navigating */
|
||||
.command-box.submit {
|
||||
border-color: var(--accent);
|
||||
box-shadow: 0 0 0 1px var(--accent-soft), 0 0 28px rgba(166, 227, 161, 0.18);
|
||||
}
|
||||
|
||||
.dollar {
|
||||
@@ -94,7 +120,11 @@ body {
|
||||
.typed {
|
||||
color: var(--fg);
|
||||
white-space: pre;
|
||||
overflow: hidden;
|
||||
}
|
||||
|
||||
.user-input {
|
||||
color: var(--fg);
|
||||
white-space: pre;
|
||||
}
|
||||
|
||||
.caret {
|
||||
@@ -106,14 +136,12 @@ body {
|
||||
animation: blink 1.05s steps(1, end) infinite;
|
||||
}
|
||||
|
||||
.caret.gone { display: none; }
|
||||
|
||||
@keyframes blink {
|
||||
0%, 50% { opacity: 1; }
|
||||
50.01%, 100% { opacity: 0; }
|
||||
}
|
||||
|
||||
.copy-btn {
|
||||
.action-btn {
|
||||
margin-left: auto;
|
||||
background: none;
|
||||
border: none;
|
||||
@@ -124,39 +152,49 @@ body {
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
flex-shrink: 0;
|
||||
transition: color 180ms ease, transform 180ms ease;
|
||||
}
|
||||
|
||||
.copy-btn:hover { color: var(--fg); }
|
||||
.action-btn:hover { color: var(--fg); }
|
||||
|
||||
.copy-btn svg {
|
||||
/* when armed, the action button is the Enter key — pulses gently to invite */
|
||||
.command-box.armed .action-btn {
|
||||
color: var(--accent);
|
||||
animation: pulse 1.6s ease-in-out infinite;
|
||||
}
|
||||
|
||||
@keyframes pulse {
|
||||
0%, 100% { transform: scale(1); opacity: 1; }
|
||||
50% { transform: scale(1.08); opacity: 0.85; }
|
||||
}
|
||||
|
||||
.action-btn svg {
|
||||
width: 16px;
|
||||
height: 16px;
|
||||
transition: transform 180ms ease;
|
||||
}
|
||||
|
||||
/* tiny "-h" flag — shows up late, sits in the bottom-left */
|
||||
.help-flag {
|
||||
position: fixed;
|
||||
left: 1rem;
|
||||
bottom: 1rem;
|
||||
z-index: 1;
|
||||
font-family: var(--mono);
|
||||
/* very minimal "how it works" subtitle — even fainter than before */
|
||||
.docs-hint {
|
||||
color: rgba(106, 106, 114, 0.45);
|
||||
text-decoration: none;
|
||||
font-size: 0.7rem;
|
||||
letter-spacing: 0.02em;
|
||||
color: rgba(106, 106, 114, 0.55);
|
||||
text-decoration: none;
|
||||
padding: 0.15rem 0.3rem;
|
||||
padding: 0.15rem 0.35rem;
|
||||
opacity: 0;
|
||||
transition: color 200ms ease, opacity 200ms ease;
|
||||
animation: fadeFaint 700ms ease-out 2200ms forwards;
|
||||
animation: fadeFaint 700ms ease-out 1100ms forwards;
|
||||
transition: color 200ms ease;
|
||||
cursor: pointer;
|
||||
}
|
||||
|
||||
.help-flag:hover { color: var(--fg); }
|
||||
.docs-hint:hover { color: var(--fg); }
|
||||
|
||||
/* even fainter — bottom-right */
|
||||
/* whisper-quiet byline, centered along the bottom */
|
||||
.byline {
|
||||
position: fixed;
|
||||
right: 1rem;
|
||||
left: 50%;
|
||||
bottom: 1rem;
|
||||
transform: translateX(-50%);
|
||||
z-index: 1;
|
||||
font-family: var(--mono);
|
||||
font-size: 0.62rem;
|
||||
@@ -164,15 +202,12 @@ body {
|
||||
color: rgba(106, 106, 114, 0.28);
|
||||
pointer-events: none;
|
||||
opacity: 0;
|
||||
animation: fadeWhisper 900ms ease-out 2700ms forwards;
|
||||
animation: fadeWhisper 900ms ease-out 1500ms forwards;
|
||||
white-space: nowrap;
|
||||
}
|
||||
|
||||
@keyframes fadeFaint {
|
||||
to { opacity: 1; }
|
||||
}
|
||||
@keyframes fadeWhisper {
|
||||
to { opacity: 1; }
|
||||
}
|
||||
@keyframes fadeFaint { to { opacity: 1; } }
|
||||
@keyframes fadeWhisper { to { opacity: 1; } }
|
||||
|
||||
@media (max-width: 640px) {
|
||||
.stage { padding: 1.5rem 1.25rem; }
|
||||
@@ -180,12 +215,12 @@ body {
|
||||
font-size: 0.92rem;
|
||||
padding: 0.9rem 1rem;
|
||||
}
|
||||
.help-flag { font-size: 0.65rem; }
|
||||
.docs-hint { font-size: 0.66rem; }
|
||||
.byline { font-size: 0.56rem; }
|
||||
}
|
||||
|
||||
@media (prefers-reduced-motion: reduce) {
|
||||
.stage { animation: none; opacity: 1; }
|
||||
.stage, .docs-hint, .byline { animation: none; opacity: 1; }
|
||||
.caret { animation: none; }
|
||||
.help-flag, .byline { animation: none; opacity: 1; }
|
||||
.command-box.armed .action-btn { animation: none; }
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user