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<!doctype html>
<html lang="uk">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover" />
<title>Локальний “Hello World” чат • Transformers.js</title>
<style>
:root {
color-scheme: light dark;
--bg: Canvas;
--fg: CanvasText;
--muted: color-mix(in oklab, var(--fg) 60%, transparent);
--border: color-mix(in oklab, var(--fg) 25%, transparent);
--bubble-me: color-mix(in oklab, var(--bg) 94%, var(--fg) 6%);
--bubble-bot: color-mix(in oklab, var(--bg) 88%, var(--fg) 12%);
--accent: #2f7bfd;
}
* {
box-sizing: border-box;
}
html,
body {
height: 100%;
}
body {
margin: 0;
font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", Arial, "Apple Color Emoji", "Segoe UI Emoji";
background: var(--bg);
color: var(--fg);
line-height: 1.35;
}
header {
position: sticky;
top: 0;
z-index: 10;
padding: 12px 16px;
border-bottom: 1px solid var(--border);
backdrop-filter: blur(6px);
background: color-mix(in oklab, var(--bg) 88%, transparent);
}
header .row {
display: flex;
gap: 8px;
align-items: center;
flex-wrap: wrap;
}
header h1 {
font-size: 1.05rem;
margin: 0;
margin-right: auto;
}
select,
button,
input,
textarea {
font: inherit;
color: inherit;
background: transparent;
border: 1px solid var(--border);
border-radius: 10px;
padding: 8px 10px;
}
select {
min-width: 270px;
}
.muted {
color: var(--muted);
font-size: .92rem;
}
main {
display: grid;
grid-template-rows: 1fr auto;
height: calc(100dvh - 64px);
}
#messages {
overflow-y: auto;
padding: 14px 12px 8px;
scroll-behavior: smooth;
}
.msg {
max-width: 72ch;
border: 1px solid var(--border);
padding: 10px 12px;
border-radius: 14px;
margin: 8px 0;
word-wrap: break-word;
white-space: pre-wrap;
}
.msg.me {
background: var(--bubble-me);
margin-left: auto;
}
.msg.bot {
background: var(--bubble-bot);
margin-right: auto;
}
.msg.sys {
font-size: .9rem;
border-style: dashed;
color: var(--muted);
}
.error-details {
font-size: .88em;
font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
background: color-mix(in oklab, var(--bg) 96%, var(--fg) 4%);
color: var(--muted);
margin: 6px 0 0 0;
padding: 7px 10px;
border-radius: 7px;
white-space: pre-wrap;
overflow-x: auto;
}
form#composer {
position: sticky;
bottom: 0;
padding: 10px 12px 14px;
border-top: 1px solid var(--border);
background: color-mix(in oklab, var(--bg) 94%, transparent);
}
.composer-row {
display: grid;
grid-template-columns: 1fr auto;
gap: 8px;
align-items: end;
}
textarea#prompt {
width: 100%;
min-height: 44px;
max-height: 35dvh;
resize: vertical;
padding: 10px 12px;
}
button#send {
background: color-mix(in oklab, var(--bg) 92%, transparent);
color: inherit;
border: 1px solid var(--border);
padding: 10px 14px;
border-radius: 12px;
cursor: pointer;
}
button:disabled {
opacity: .6;
cursor: not-allowed;
}
.status {
display: flex;
gap: 8px;
align-items: center;
padding: 6px 0 2px;
}
.dot {
width: 8px;
height: 8px;
border-radius: 50%;
background: var(--border);
box-shadow: 0 0 0 0 var(--border);
animation: pulse 1.2s infinite ease-in-out;
}
@keyframes pulse {
0% {
transform: scale(1);
box-shadow: 0 0 0 0 color-mix(in oklab, var(--accent) 22%, transparent);
}
70% {
transform: scale(1.1);
box-shadow: 0 0 0 6px transparent;
}
100% {
transform: scale(1);
box-shadow: 0 0 0 0 transparent;
}
}
/* Small screens first; content already optimized for mobile */
@media (min-width: 720px) {
main {
height: calc(100vh - 64px);
}
}
</style>
</head>
<body>
<header>
<div class="row">
<h1>Локальний чат: 1</h1>
<label for="model" class="muted" style="display:none">Модель</label>
<select id="model" title="Оберіть модель (Xenova)">
<option value="Xenova/distilgpt2">Xenova/distilgpt2 (швидка, маленька)</option>
<option value="Xenova/phi-3-mini-4k-instruct">Xenova/phi-3-mini-4k-instruct</option>
<option value="Xenova/t5-small">Xenova/t5-small (text2text)</option>
<option value="Xenova/gemma-2b-it">Xenova/gemma-2b-it</option>
<option value="Xenova/llama-3-8b-instruct">Xenova/llama-3-8b-instruct</option>
<option value="Xenova/Mistral-7B-Instruct-v0.2">Xenova/Mistral-7B-Instruct-v0.2</option>
</select>
</div>
<div id="status" class="status muted">
<span class="dot" aria-hidden="true"></span>
<span id="status-text">Готово</span>
</div>
</header>
<main>
<div id="messages" aria-live="polite" aria-busy="false">
<div class="msg sys">Підказка: спершу спробуйте маленькі моделі (наприклад, distilgpt2 або t5-small). Великі
(7B/8B) можуть не поміститися в памʼять браузера.</div>
</div>
<form id="composer" autocomplete="off">
<div class="composer-row">
<textarea id="prompt" placeholder="Напишіть повідомлення…" required></textarea>
<button id="send" type="submit">Надіслати</button>
</div>
</form>
</main>
<!-- Підключення чату як ES6-модуля, transformers імпортується всередині -->
<script type="module" src="chat-full.js"></script>
</body>
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