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mxpic_EDA/frontend/login.html
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HTML

<!DOCTYPE html>
<!--
Description: Login page for authenticating users before entering the MXPIC EDA workspace.
Inside functions: applyTheme, setSubmitState
Developer : Qin Yue @ 2026
Organization : OptiHK Limited
-->
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>mxPIC EDA - Login</title>
<link href="https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap" rel="stylesheet">
<style>
:root {
--bg-main: #06101d;
--bg-panel: #0c1728;
--bg-card: #111c2e;
--bg-soft: #17243a;
--text-main: #f6f8fb;
--text-muted: #97a6ba;
--accent: #5dd8f3;
--accent-strong: #2563eb;
--accent-warm: #d97706;
--accent-green: #34d399;
--accent-red: #ef4444;
--border: #2a394f;
--border-strong: #496078;
--input-bg: #091320;
--shadow: rgba(0, 0, 0, 0.38);
--error-text: #fecaca;
--error-bg: rgba(239, 68, 68, 0.14);
--focus-ring: rgba(93, 216, 243, 0.28);
}
body.light-mode {
--bg-main: #f4f7fb;
--bg-panel: #ffffff;
--bg-card: #ffffff;
--bg-soft: #eef4fa;
--text-main: #142235;
--text-muted: #5f7085;
--accent: #1d4ed8;
--accent-strong: #0f766e;
--accent-warm: #b45309;
--accent-green: #15803d;
--accent-red: #dc2626;
--border: #d6e0eb;
--border-strong: #b6c4d4;
--input-bg: #f8fafc;
--shadow: rgba(37, 99, 235, 0.12);
--error-text: #991b1b;
--error-bg: rgba(220, 38, 38, 0.08);
--focus-ring: rgba(29, 78, 216, 0.2);
}
* {
box-sizing: border-box;
}
body {
margin: 0;
min-height: 100dvh;
font-family: 'IBM Plex Sans', "Segoe UI", sans-serif;
color: var(--text-main);
background:
linear-gradient(90deg, rgba(255, 255, 255, 0.026) 1px, transparent 1px),
linear-gradient(0deg, rgba(255, 255, 255, 0.026) 1px, transparent 1px),
linear-gradient(135deg, var(--bg-main), #091526 62%, #0d1724);
background-size: 48px 48px, 48px 48px, auto;
display: grid;
place-items: center;
padding: 28px;
}
body.light-mode {
background:
linear-gradient(90deg, rgba(29, 78, 216, 0.04) 1px, transparent 1px),
linear-gradient(0deg, rgba(29, 78, 216, 0.04) 1px, transparent 1px),
linear-gradient(135deg, #f8fbff, var(--bg-main));
}
button,
input {
font: inherit;
}
button:focus-visible,
input:focus-visible {
outline: 3px solid var(--focus-ring);
outline-offset: 2px;
}
.theme-toggle {
position: fixed;
top: 20px;
right: 22px;
border: 1px solid var(--border);
background: rgba(12, 23, 40, 0.86);
color: var(--text-main);
border-radius: 8px;
min-width: 92px;
height: 36px;
padding: 0 12px;
cursor: pointer;
font-weight: 700;
box-shadow: 0 12px 28px var(--shadow);
backdrop-filter: blur(14px);
}
body.light-mode .theme-toggle {
background: rgba(255, 255, 255, 0.9);
}
.login-shell {
width: min(1040px, 100%);
min-height: 590px;
display: grid;
grid-template-columns: minmax(0, 1fr) 410px;
border: 1px solid var(--border);
border-radius: 8px;
overflow: hidden;
background: rgba(12, 23, 40, 0.88);
box-shadow: 0 30px 80px var(--shadow);
}
body.light-mode .login-shell {
background: rgba(255, 255, 255, 0.94);
}
.login-visual {
padding: 38px;
background: var(--bg-panel);
border-right: 1px solid var(--border);
display: flex;
flex-direction: column;
gap: 28px;
justify-content: space-between;
}
.brand-row {
display: flex;
align-items: center;
justify-content: space-between;
gap: 18px;
}
.brand-logo {
display: flex;
align-items: center;
gap: 12px;
font-size: 1.02rem;
font-weight: 700;
letter-spacing: 0;
}
.brand-logo .company-hk {
color: var(--accent);
}
.company-wordmark {
display: inline-flex;
gap: 0;
white-space: nowrap;
color: var(--text-main);
}
.brand-mark {
width: 34px;
height: 34px;
border-radius: 8px;
background: linear-gradient(135deg, var(--accent), var(--accent-strong) 62%, var(--accent-warm));
position: relative;
box-shadow: 0 0 0 5px rgba(93, 216, 243, 0.08);
}
.brand-mark::before,
.brand-mark::after {
content: "";
position: absolute;
background: #ffffff;
opacity: 0.92;
}
.brand-mark::before {
left: 8px;
right: 8px;
top: 16px;
height: 2px;
}
.brand-mark::after {
top: 8px;
bottom: 8px;
left: 16px;
width: 2px;
}
.product-kicker {
color: var(--text-muted);
font-family: 'IBM Plex Mono', Consolas, monospace;
font-size: 0.76rem;
font-weight: 700;
letter-spacing: 0.05em;
text-transform: uppercase;
}
.visual-copy h1 {
margin: 0 0 14px 0;
max-width: 520px;
font-size: clamp(2.25rem, 4.4vw, 3.7rem);
line-height: 1.02;
letter-spacing: 0;
}
.visual-copy p {
max-width: 520px;
color: var(--text-muted);
line-height: 1.65;
margin: 0;
font-size: 1rem;
}
.eda-preview {
border: 1px solid var(--border);
border-radius: 8px;
overflow: hidden;
background: var(--bg-card);
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
aspect-ratio: 16 / 9;
}
.eda-preview img {
display: block;
width: 100%;
height: 100%;
object-fit: cover;
}
.preview-bar {
height: 36px;
border-bottom: 1px solid var(--border);
display: flex;
align-items: center;
justify-content: space-between;
padding: 0 12px;
color: var(--text-muted);
font-family: 'IBM Plex Mono', Consolas, monospace;
font-size: 0.72rem;
font-weight: 700;
}
.preview-status {
color: var(--accent-green);
}
.preview-workspace {
display: grid;
grid-template-columns: 150px minmax(0, 1fr);
min-height: 260px;
}
.preview-sidebar {
border-right: 1px solid var(--border);
background: var(--input-bg);
padding: 14px;
}
.tree-label {
color: var(--text-muted);
font-family: 'IBM Plex Mono', Consolas, monospace;
font-size: 0.7rem;
font-weight: 700;
margin-bottom: 10px;
text-transform: uppercase;
}
.tree-row {
height: 28px;
display: flex;
align-items: center;
gap: 8px;
color: var(--text-main);
border-radius: 6px;
padding: 0 8px;
font-size: 0.82rem;
}
.tree-row.muted {
color: var(--text-muted);
padding-left: 22px;
}
.tree-dot {
width: 8px;
height: 8px;
border-radius: 99px;
background: var(--accent);
}
.cell-chip {
margin-top: 12px;
display: grid;
gap: 8px;
}
.cell-chip span {
display: block;
border: 1px solid var(--border);
border-radius: 8px;
padding: 8px 9px;
color: var(--text-muted);
font-family: 'IBM Plex Mono', Consolas, monospace;
font-size: 0.68rem;
background: var(--bg-soft);
}
.preview-canvas {
position: relative;
min-height: 260px;
background:
linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
linear-gradient(0deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
var(--bg-card);
background-size: 28px 28px;
}
body.light-mode .preview-canvas {
background:
linear-gradient(90deg, rgba(29, 78, 216, 0.05) 1px, transparent 1px),
linear-gradient(0deg, rgba(29, 78, 216, 0.05) 1px, transparent 1px),
var(--bg-card);
background-size: 28px 28px;
}
.node {
position: absolute;
width: 94px;
height: 44px;
border: 1px solid var(--border-strong);
border-radius: 8px;
background: linear-gradient(180deg, var(--bg-soft), var(--bg-card));
color: var(--text-main);
display: grid;
place-items: center;
font-family: 'IBM Plex Mono', Consolas, monospace;
font-size: 0.68rem;
font-weight: 700;
box-shadow: 0 14px 28px var(--shadow);
}
.node.a {
left: 42px;
top: 52px;
}
.node.b {
right: 46px;
top: 52px;
}
.node.c {
left: 50%;
top: 154px;
transform: translateX(-50%);
}
.route {
position: absolute;
height: 2px;
background: var(--accent);
box-shadow: 0 0 12px rgba(93, 216, 243, 0.45);
transform-origin: left center;
}
.route.one {
width: 124px;
left: 132px;
top: 74px;
}
.route.two {
width: 102px;
left: 122px;
top: 144px;
transform: rotate(34deg);
}
.route.three {
width: 102px;
right: 118px;
top: 144px;
transform: rotate(-34deg);
}
.login-card {
background:
linear-gradient(180deg, rgba(255, 255, 255, 0.032), transparent),
var(--bg-card);
padding: 42px;
display: flex;
flex-direction: column;
justify-content: center;
}
.mobile-product {
display: none;
margin-bottom: 22px;
}
.system-title {
color: var(--text-muted);
font-family: 'IBM Plex Mono', Consolas, monospace;
font-size: 0.74rem;
font-weight: 700;
letter-spacing: 0.05em;
text-transform: uppercase;
margin-bottom: 10px;
}
.login-card h2 {
margin: 0 0 8px 0;
font-size: 1.5rem;
font-weight: 700;
}
.login-card .form-note {
color: var(--text-muted);
line-height: 1.5;
margin: 0 0 28px;
font-size: 0.94rem;
}
form {
display: flex;
flex-direction: column;
gap: 18px;
}
.input-group {
display: flex;
flex-direction: column;
gap: 8px;
}
label {
font-size: 0.84rem;
color: var(--text-muted);
font-weight: 700;
}
.password-row {
position: relative;
}
input[type="text"],
input[type="password"] {
width: 100%;
min-height: 46px;
background-color: var(--input-bg);
border: 1px solid var(--border);
color: var(--text-main);
font-size: 0.98rem;
padding: 12px 14px;
border-radius: 8px;
outline: none;
transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.password-row input {
padding-right: 70px;
}
input[type="text"]:focus,
input[type="password"]:focus {
border-color: var(--accent);
background: var(--bg-panel);
box-shadow: 0 0 0 3px var(--focus-ring);
}
.password-toggle {
position: absolute;
right: 7px;
top: 7px;
height: 32px;
border: 1px solid var(--border);
border-radius: 8px;
background: var(--bg-soft);
color: var(--text-muted);
cursor: pointer;
padding: 0 10px;
font-size: 0.78rem;
font-weight: 700;
}
.submit-btn {
min-height: 46px;
background: linear-gradient(135deg, var(--accent), var(--accent-strong));
color: #04101f;
font-size: 0.98rem;
font-weight: 700;
padding: 13px;
border: none;
border-radius: 8px;
cursor: pointer;
transition: transform 0.1s ease, box-shadow 0.2s ease, opacity 0.2s ease;
margin-top: 4px;
box-shadow: 0 14px 28px rgba(37, 99, 235, 0.24);
}
.submit-btn:hover:not(:disabled) {
transform: translateY(-1px);
}
.submit-btn:active:not(:disabled) {
transform: scale(0.99);
}
.submit-btn:disabled {
cursor: wait;
opacity: 0.72;
}
.error-message {
background-color: var(--error-bg);
color: var(--error-text);
border: 1px solid rgba(239, 68, 68, 0.42);
padding: 11px 12px;
border-radius: 8px;
font-size: 0.86rem;
line-height: 1.45;
margin-bottom: 2px;
}
@media (max-width: 860px) {
body {
display: flex;
flex-direction: column;
align-items: stretch;
justify-content: center;
padding: 18px;
}
.theme-toggle {
position: static;
align-self: flex-end;
margin-bottom: 14px;
}
.login-shell {
grid-template-columns: 1fr;
min-height: auto;
}
.login-visual {
display: none;
}
.mobile-product {
display: block;
}
.login-card {
padding: 30px 22px;
}
}
</style>
</head>
<body>
<button class="theme-toggle" id="theme-toggle" type="button" aria-label="Switch color theme">Light mode</button>
<main class="login-shell">
<section class="login-visual" aria-label="mxPIC EDA workspace preview">
<div class="brand-row">
<div class="brand-logo">
<div class="brand-mark" aria-hidden="true"></div>
MxPic - by <span class="company-wordmark">Opti<span class="company-hk">HK</span></span>
</div>
<div class="product-kicker">EDA platform</div>
</div>
<div class="visual-copy">
<h1>MxPIC</h1>
<p>A end-to-end EDA solution for photonic integrated</p>
</div>
<div class="eda-preview">
<img src="/frontend/assets/pic-mzm-directional-couplers.png" alt="2D render of a photonic integrated circuit with MZM arms and directional couplers">
</div>
</section>
<section class="login-card">
<div class="mobile-product">
<div class="brand-logo">
<div class="brand-mark" aria-hidden="true"></div>
MxPic - by <span class="company-wordmark">Opti<span class="company-hk">HK</span></span>
</div>
</div>
<div class="system-title">Access</div>
<h2>Sign in</h2>
{% if error %}
<div class="error-message" role="alert">
{{ error }}
</div>
{% endif %}
<form action="/login" method="POST" id="login-form">
<div class="input-group">
<label for="username">Username</label>
<input type="text" id="username" name="username" required autocomplete="username" autofocus>
</div>
<div class="input-group">
<label for="password">Password</label>
<div class="password-row">
<input type="password" id="password" name="password" required autocomplete="current-password">
<button class="password-toggle" id="password-toggle" type="button" aria-label="Show password">Show</button>
</div>
</div>
<button class="submit-btn" id="submit-btn" type="submit">Log in</button>
</form>
</section>
</main>
<script>
const themeToggle = document.getElementById('theme-toggle');
const passwordInput = document.getElementById('password');
const passwordToggle = document.getElementById('password-toggle');
const loginForm = document.getElementById('login-form');
const submitButton = document.getElementById('submit-btn');
function applyTheme(mode) {
const isLight = mode === 'light';
document.body.classList.toggle('light-mode', isLight);
themeToggle.textContent = isLight ? 'Dark mode' : 'Light mode';
localStorage.setItem('mxpic-theme', mode);
}
function setSubmitState() {
submitButton.disabled = true;
submitButton.textContent = 'Signing in...';
}
applyTheme(localStorage.getItem('mxpic-theme') || 'dark');
themeToggle.addEventListener('click', () => {
applyTheme(document.body.classList.contains('light-mode') ? 'dark' : 'light');
});
passwordToggle.addEventListener('click', () => {
const showPassword = passwordInput.type === 'password';
passwordInput.type = showPassword ? 'text' : 'password';
passwordToggle.textContent = showPassword ? 'Hide' : 'Show';
passwordToggle.setAttribute('aria-label', showPassword ? 'Hide password' : 'Show password');
});
loginForm.addEventListener('submit', setSubmitState);
</script>
</body>
</html>