Webleb - UI Elements - Bouncy Password Error

HTML

CSS

* {
  border: 0;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --hue: 223;
  --bg: hsl(var(--hue),10%,90%);
  --fg: hsl(var(--hue),10%,10%);
  --focus: hsl(var(--hue),90%,50%);
  --error: hsl(3,90%,40%);
  --trans-dur: 0.3s;
  --trans-timing1: cubic-bezier(0.65,0,0.35,1);
  --trans-timing2: cubic-bezier(0.65,0,0.35,1.5);
  font-size: calc(14px + (30 - 14) * (100vw - 280px) / (3840 - 280));
}

body,
button,
input {
  color: var(--fg);
  font: 1em/1.5 "DM Sans", sans-serif;
}

body {
  background-color: var(--bg);
  display: flex;
  height: 100vh;
  transition: background-color var(--trans-dur), color var(--trans-dur);
}

button {
  background-color: var(--fg);
  border-radius: 0.5em;
  color: var(--bg);
  cursor: pointer;
  display: block;
  padding: 0.75em 1em;
  width: 100%;
  transition: background-color var(--trans-dur), color var(--trans-dur);
  -webkit-appearance: none;
  appearance: none;
}
button:hover {
  background-color: var(--focus);
}

form {
  margin: auto;
  padding: 3em 0;
}

p {
  margin-bottom: 1.5em;
}

small {
  font-size: 0.75em;
  line-height: 2;
}

.field {
  margin-bottom: 1.5em;
  padding-bottom: 0.375em;
  position: relative;
}
.field__error, .field__label {
  position: absolute;
}
.field__error {
  color: var(--error);
  top: 100%;
  left: 0;
  transition: color var(--trans-dur);
}
.field__input, .field__label {
  -webkit-tap-highlight-color: transparent;
}
.field__input {
  background-color: white;
  border-radius: 0.5em;
  box-shadow: 0 0 0 0.125em white inset, 0 0.25em 0 hsl(var(--hue), 10%, 70%);
  outline: transparent;
  padding: 0.75em 1em;
  min-width: 15em;
  -webkit-appearance: none;
  appearance: none;
  transition: background-color var(--trans-dur), box-shadow var(--trans-dur) var(--trans-timing1), color var(--trans-dur), transform var(--trans-dur) var(--trans-timing1);
}
.field__input:hover {
  box-shadow: 0 0 0 0.125em hsl(var(--hue), 10%, 70%) inset, 0 0.25em 0 hsl(var(--hue), 10%, 70%);
  transform: scale(1.08, 1.08);
}
.field__input:focus-visible {
  box-shadow: 0 0 0 0.125em var(--focus) inset, 0 0.25em 0 var(--focus);
  transform: scale(1, 1);
}
.field__input:active {
  box-shadow: 0 0 0 0.25em hsl(var(--hue), 10%, 70%) inset, 0 0 0 hsl(var(--hue), 10%, 70%);
  transform: translateY(0.375em);
}
.field__input[aria-invalid=true] {
  animation: wobble calc(var(--trans-dur) * 3) var(--trans-timing1);
  box-shadow: 0 0 0 0.125em var(--error) inset, 0 0.25em 0 var(--error);
}
.field__input[aria-invalid=true] + .field__error {
  animation: fly-in calc(var(--trans-dur) * 3) var(--trans-timing1);
}
.field__label {
  pointer-events: none;
  top: 0.75em;
  left: 1em;
  transition: transform var(--trans-dur) var(--trans-timing2);
  z-index: 1;
}
.field:has(.field__input[aria-invalid=true]) .field__label {
  animation: bounce calc(var(--trans-dur) * 3) var(--trans-timing1);
}
.field:has(.field__input:focus-visible) .field__label, .field:has(.field__input:not(:placeholder-shown)) .field__label {
  pointer-events: auto;
  transform: translate(-1em, -2.5em);
}
.field:has(.field__input:placeholder-shown:active) .field__label {
  transform: translate(0.2em, 0.375em);
  transition-timing-function: var(--trans-timing1);
}

.note {
  color: hsl(var(--hue), 10%, 30%);
  transition: color var(--trans-dur);
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: hsl(var(--hue),10%,10%);
    --fg: hsl(var(--hue),10%,90%);
    --focus: hsl(var(--hue),90%,70%);
    --error: hsl(3,90%,60%);
  }

.field__input {
    background-color: hsl(var(--hue), 10%, 30%);
    box-shadow: 0 0 0 0.125em hsl(var(--hue), 10%, 30%) inset, 0 0.25em 0 black;
  }
  .field__input:hover {
    box-shadow: 0 0 0 0.125em black inset, 0 0.25em 0 black;
  }
  .field__input:focus-visible {
    box-shadow: 0 0 0 0.125em var(--focus) inset, 0 0.25em 0 var(--focus);
  }
  .field__input:active {
    box-shadow: 0 0 0 0.25em black inset, 0 0 0 black;
  }
  .field__input[aria-invalid=true] {
    box-shadow: 0 0 0 0.125em var(--error) inset, 0 0.25em 0 var(--error);
  }

.note {
    color: hsl(var(--hue), 10%, 70%);
    transition: color var(--trans-dur);
  }
}
/* Animations */
@keyframes bounce {
  from, to {
    transform: translate(-1em, -2.5em);
  }
  16.67% {
    transform: translate(-1em, -1.75em) rotate(-15deg) translateX(-0.75em);
  }
  33.33% {
    transform: translate(-1em, -5em) rotate(15deg);
  }
  50% {
    transform: translate(-1em, -5em);
  }
  66.67% {
    animation-timing-function: cubic-bezier(0.32, 0, 0.67, 0);
    transform: translate(-1em, -2em);
  }
  83.33% {
    animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
    transform: translate(-1em, -2.75em);
  }
}
@keyframes fly-in {
  from, 66.67% {
    animation-timing-function: cubic-bezier(0.32, 0, 0.67, 0);
    opacity: 0;
    transform: translateY(50%);
  }
  83.33% {
    animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
    opacity: 1;
    transform: translateY(-25%);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes wobble {
  from, 50%, to {
    box-shadow: 0 0 0 0.125em var(--error) inset, 0 0.25em 0 var(--error);
    transform: rotate(0);
  }
  16.67% {
    box-shadow: 0 0 0 0.125em var(--error) inset, -0.25em 0.25em 0 var(--error);
    transform: rotate(-15deg);
  }
  33.33% {
    box-shadow: 0 0 0 0.125em var(--error) inset, 0.25em -0.25em 0 var(--error);
    transform: rotate(15deg);
  }
}

JS

"use strict";
window.addEventListener("DOMContentLoaded", () => {
    const pass = new PasswordForm("form");
});
class PasswordForm {
    /**
     * @param el CSS selector of the form
     */
    constructor(el) {
        var _a;
        /** Minimum password length */
        this.minLength = 6;
        this._invalid = false;
        this._message = "";
        this.el = document.querySelector(el);
        (_a = this.el) === null || _a === void 0 ? void 0 : _a.addEventListener("submit", this.validate.bind(this));
        this.minLengthDisplay();
    }
    get invalid() {
        return this._invalid;
    }
    set invalid(value) {
        this._invalid = value;
    }
    get message() {
        return this._message;
    }
    set message(value) {
        this._message = value;
    }
    /** Display the minimum characters required. */
    minLengthDisplay() {
        var _a;
        const reqEl = (_a = this.el) === null || _a === void 0 ? void 0 : _a.querySelector("[data-req]");
        if (reqEl) {
            reqEl.textContent = `${this.minLength}`;
        }
    }
    /**
     * Check the input.
     * @param e Submit event
     */
    validate(e) {
        var _a, _b, _c, _d;
        e.preventDefault();
        this.invalid = ((_a = this.el) === null || _a === void 0 ? void 0 : _a.pass.value.length) < this.minLength;
        (_b = this.el) === null || _b === void 0 ? void 0 : _b.pass.setAttribute("aria-invalid", this.invalid);
        if (this.invalid) {
            this.message = Message.TooShort;
        }
        else {
            this.message = "";
            (_c = this.el) === null || _c === void 0 ? void 0 : _c.pass.blur();
        }
        const errorEl = (_d = this.el) === null || _d === void 0 ? void 0 : _d.querySelector("[data-error]");
        if (errorEl) {
            errorEl.textContent = this.message;
        }
    }
}
var Message;
(function (Message) {
    Message["TooShort"] = "Too short!";
})(Message || (Message = {}));

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