sentiment_analysis / index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<title>Sentiment Analyzer</title>
<link href="https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:wght@300;400;500&display=swap" rel="stylesheet"/>
<style>
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
--bg: #08090a;
--surface: #111214;
--surface2: #1a1c1f;
--border: rgba(255,255,255,0.07);
--border2: rgba(255,255,255,0.13);
--text: #f0ede8;
--muted: #7a7875;
--accent: #c8f060;
--accent-dim: rgba(200,240,96,0.1);
--accent-glow: rgba(200,240,96,0.25);
--pos: #4ade80;
--pos-bg: rgba(74,222,128,0.08);
--neg: #f87171;
--neg-bg: rgba(248,113,113,0.08);
--font-display: 'Syne', sans-serif;
--font-body: 'DM Sans', sans-serif;
}
body {
background: var(--bg);
color: var(--text);
font-family: var(--font-body);
min-height: 100vh;
display: flex;
flex-direction: column;
align-items: center;
padding: 3rem 1.5rem 5rem;
}
.noise {
position: fixed;
inset: 0;
background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
pointer-events: none;
z-index: 0;
opacity: 0.4;
}
.orb {
position: fixed;
width: 600px;
height: 600px;
border-radius: 50%;
background: radial-gradient(circle, rgba(200,240,96,0.04) 0%, transparent 70%);
top: -200px;
left: 50%;
transform: translateX(-50%);
pointer-events: none;
z-index: 0;
}
.wrap {
width: 100%;
max-width: 720px;
position: relative;
z-index: 1;
}
header {
text-align: center;
margin-bottom: 3.5rem;
animation: fadeUp 0.7s ease both;
}
.badge {
display: inline-flex;
align-items: center;
gap: 6px;
background: var(--accent-dim);
border: 1px solid var(--accent-glow);
color: var(--accent);
font-family: var(--font-body);
font-size: 11px;
font-weight: 500;
letter-spacing: 0.12em;
text-transform: uppercase;
padding: 5px 12px;
border-radius: 100px;
margin-bottom: 1.2rem;
}
.badge-dot {
width: 6px;
height: 6px;
background: var(--accent);
border-radius: 50%;
animation: pulse 2s infinite;
}
h1 {
font-family: var(--font-display);
font-size: clamp(2.5rem, 6vw, 4rem);
font-weight: 800;
line-height: 1.05;
letter-spacing: -0.02em;
color: var(--text);
margin-bottom: 0.75rem;
}
h1 span { color: var(--accent); }
.subtitle {
font-size: 15px;
color: var(--muted);
font-weight: 300;
line-height: 1.6;
}
.card {
background: var(--surface);
border: 1px solid var(--border);
border-radius: 20px;
padding: 2rem;
margin-bottom: 1.5rem;
animation: fadeUp 0.7s ease 0.1s both;
transition: border-color 0.3s;
}
.card:hover { border-color: var(--border2); }
.input-label {
font-family: var(--font-display);
font-size: 11px;
font-weight: 600;
letter-spacing: 0.1em;
text-transform: uppercase;
color: var(--muted);
margin-bottom: 0.75rem;
display: block;
}
textarea {
width: 100%;
background: var(--surface2);
border: 1px solid var(--border);
border-radius: 12px;
color: var(--text);
font-family: var(--font-body);
font-size: 15px;
font-weight: 300;
line-height: 1.7;
padding: 1rem 1.25rem;
resize: none;
outline: none;
transition: border-color 0.25s, box-shadow 0.25s;
height: 130px;
}
textarea::placeholder { color: var(--muted); opacity: 0.6; }
textarea:focus {
border-color: rgba(200,240,96,0.35);
box-shadow: 0 0 0 3px rgba(200,240,96,0.06);
}
.char-count {
text-align: right;
font-size: 12px;
color: var(--muted);
margin-top: 6px;
}
.btn-row {
display: flex;
gap: 10px;
margin-top: 1.25rem;
}
.btn {
flex: 1;
padding: 14px 20px;
border-radius: 12px;
font-family: var(--font-display);
font-size: 14px;
font-weight: 700;
letter-spacing: 0.03em;
cursor: pointer;
border: none;
transition: all 0.2s;
}
.btn-primary {
background: var(--accent);
color: #0a0a0a;
}
.btn-primary:hover { background: #d4f570; transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled {
opacity: 0.5;
cursor: not-allowed;
transform: none;
}
.btn-ghost {
background: var(--surface2);
color: var(--muted);
border: 1px solid var(--border);
flex: 0 0 auto;
padding: 14px 18px;
}
.btn-ghost:hover { color: var(--text); border-color: var(--border2); }
.result-card {
background: var(--surface);
border: 1px solid var(--border);
border-radius: 20px;
padding: 2rem;
margin-bottom: 1.5rem;
display: none;
animation: fadeUp 0.4s ease both;
}
.result-card.show { display: block; }
.result-inner {
display: flex;
align-items: center;
gap: 1.25rem;
}
.result-icon {
width: 64px;
height: 64px;
border-radius: 16px;
display: flex;
align-items: center;
justify-content: center;
font-size: 28px;
flex-shrink: 0;
}
.result-icon.pos { background: var(--pos-bg); }
.result-icon.neg { background: var(--neg-bg); }
.result-label {
font-family: var(--font-body);
font-size: 12px;
font-weight: 500;
letter-spacing: 0.1em;
text-transform: uppercase;
color: var(--muted);
margin-bottom: 4px;
}
.result-sentiment {
font-family: var(--font-display);
font-size: 2rem;
font-weight: 800;
letter-spacing: -0.02em;
}
.result-sentiment.pos { color: var(--pos); }
.result-sentiment.neg { color: var(--neg); }
.result-text {
font-size: 13px;
color: var(--muted);
margin-top: 4px;
font-weight: 300;
line-height: 1.5;
max-width: 400px;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.loader {
display: none;
align-items: center;
gap: 10px;
padding: 1.5rem 2rem;
background: var(--surface);
border: 1px solid var(--border);
border-radius: 20px;
margin-bottom: 1.5rem;
color: var(--muted);
font-size: 14px;
}
.loader.show { display: flex; }
.spinner {
width: 18px;
height: 18px;
border: 2px solid var(--border2);
border-top-color: var(--accent);
border-radius: 50%;
animation: spin 0.7s linear infinite;
flex-shrink: 0;
}
.history-section {
animation: fadeUp 0.7s ease 0.2s both;
}
.section-header {
display: flex;
align-items: center;
justify-content: space-between;
margin-bottom: 1rem;
}
.section-title {
font-family: var(--font-display);
font-size: 13px;
font-weight: 700;
letter-spacing: 0.08em;
text-transform: uppercase;
color: var(--muted);
}
.clear-btn {
background: none;
border: none;
color: var(--muted);
font-family: var(--font-body);
font-size: 12px;
cursor: pointer;
padding: 4px 8px;
border-radius: 6px;
transition: color 0.2s, background 0.2s;
}
.clear-btn:hover { color: var(--neg); background: var(--neg-bg); }
.history-list {
display: flex;
flex-direction: column;
gap: 8px;
}
.history-item {
background: var(--surface);
border: 1px solid var(--border);
border-radius: 14px;
padding: 1rem 1.25rem;
display: flex;
align-items: flex-start;
gap: 12px;
cursor: pointer;
transition: border-color 0.2s, background 0.2s;
animation: fadeUp 0.35s ease both;
}
.history-item:hover {
border-color: var(--border2);
background: var(--surface2);
}
.history-dot {
width: 8px;
height: 8px;
border-radius: 50%;
margin-top: 5px;
flex-shrink: 0;
}
.history-dot.pos { background: var(--pos); }
.history-dot.neg { background: var(--neg); }
.history-content { flex: 1; min-width: 0; }
.history-text {
font-size: 14px;
color: var(--text);
font-weight: 300;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
margin-bottom: 4px;
}
.history-meta {
display: flex;
align-items: center;
gap: 8px;
font-size: 11px;
color: var(--muted);
}
.history-sentiment {
font-weight: 500;
font-size: 11px;
padding: 2px 8px;
border-radius: 100px;
}
.history-sentiment.pos { color: var(--pos); background: var(--pos-bg); }
.history-sentiment.neg { color: var(--neg); background: var(--neg-bg); }
.empty-state {
text-align: center;
padding: 2.5rem 1rem;
color: var(--muted);
font-size: 13px;
font-weight: 300;
border: 1px dashed var(--border);
border-radius: 14px;
}
.empty-icon { font-size: 28px; margin-bottom: 0.5rem; opacity: 0.4; }
@keyframes fadeUp {
from { opacity: 0; transform: translateY(14px); }
to { opacity: 1; transform: translateY(0); }
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse {
0%, 100% { opacity: 1; }
50% { opacity: 0.4; }
}
</style>
</head>
<body>
<div class="noise"></div>
<div class="orb"></div>
<div class="wrap">
<header>
<div class="badge">
<span class="badge-dot"></span>
AI Powered
</div>
<h1>Sentiment<br/><span>Analyzer</span></h1>
<p class="subtitle">Understand the emotion behind any text — instantly.</p>
</header>
<div class="card">
<label class="input-label" for="textInput">Your text</label>
<textarea id="textInput" placeholder="Type or paste any text here — a review, tweet, message..." maxlength="1000"></textarea>
<div class="char-count"><span id="charCount">0</span> / 1000</div>
<div class="btn-row">
<button class="btn btn-ghost" onclick="clearAll()">Clear</button>
<button class="btn btn-primary" id="analyzeBtn" onclick="analyze()">Analyze Sentiment →</button>
</div>
</div>
<div class="loader" id="loader">
<div class="spinner"></div>
Analyzing sentiment...
</div>
<div class="result-card" id="resultCard">
<div class="result-inner">
<div class="result-icon" id="resultIcon"></div>
<div>
<div class="result-label">Result</div>
<div class="result-sentiment" id="resultSentiment"></div>
<div class="result-text" id="resultText"></div>
</div>
</div>
</div>
<div class="history-section" id="historySection" style="display:none">
<div class="section-header">
<span class="section-title">History</span>
<button class="clear-btn" onclick="clearHistory()">Clear all</button>
</div>
<div class="history-list" id="historyList"></div>
</div>
<div class="history-section" id="emptyHistory">
<div class="section-header">
<span class="section-title">History</span>
</div>
<div class="empty-state">
<div class="empty-icon"></div>
Your analysis history will appear here
</div>
</div>
</div>
<script>
const API_URL = "http://127.0.0.1:8000/predict";
let history = JSON.parse(localStorage.getItem("sa_history") || "[]");
const textarea = document.getElementById("textInput");
const charCount = document.getElementById("charCount");
const loader = document.getElementById("loader");
const resultCard = document.getElementById("resultCard");
const analyzeBtn = document.getElementById("analyzeBtn");
textarea.addEventListener("input", () => {
charCount.textContent = textarea.value.length;
});
function formatDate(iso) {
const d = new Date(iso);
const now = new Date();
const diff = now - d;
if (diff < 60000) return "just now";
if (diff < 3600000) return Math.floor(diff/60000) + "m ago";
if (diff < 86400000) return Math.floor(diff/3600000) + "h ago";
return d.toLocaleDateString("en-IN", { day:"numeric", month:"short", year:"numeric" }) +
" · " + d.toLocaleTimeString("en-IN", { hour:"2-digit", minute:"2-digit" });
}
async function analyze() {
const text = textarea.value.trim();
if (!text) { textarea.focus(); return; }
analyzeBtn.disabled = true;
resultCard.classList.remove("show");
loader.classList.add("show");
try {
const res = await fetch(API_URL, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ text })
});
const data = await res.json();
const sentiment = data.sentiment?.toLowerCase() || "unknown";
showResult(sentiment, text);
addToHistory(text, sentiment);
} catch (e) {
showResult("error", text);
} finally {
loader.classList.remove("show");
analyzeBtn.disabled = false;
}
}
function showResult(sentiment, text) {
const isPos = sentiment === "positive";
const icon = document.getElementById("resultIcon");
const label = document.getElementById("resultSentiment");
const sub = document.getElementById("resultText");
icon.className = "result-icon " + (isPos ? "pos" : "neg");
icon.textContent = isPos ? "😊" : "😞";
label.className = "result-sentiment " + (isPos ? "pos" : "neg");
label.textContent = isPos ? "Positive" : "Negative";
sub.textContent = '"' + text + '"';
resultCard.classList.add("show");
}
function addToHistory(text, sentiment) {
history.unshift({ text, sentiment, date: new Date().toISOString() });
if (history.length > 20) history = history.slice(0, 20);
localStorage.setItem("sa_history", JSON.stringify(history));
renderHistory();
}
function renderHistory() {
const list = document.getElementById("historyList");
const section = document.getElementById("historySection");
const empty = document.getElementById("emptyHistory");
if (!history.length) {
section.style.display = "none";
empty.style.display = "block";
return;
}
section.style.display = "block";
empty.style.display = "none";
list.innerHTML = "";
history.forEach((item, i) => {
const cls = item.sentiment === "positive" ? "pos" : "neg";
const el = document.createElement("div");
el.className = "history-item";
el.style.animationDelay = (i * 0.04) + "s";
el.innerHTML = `
<div class="history-dot ${cls}"></div>
<div class="history-content">
<div class="history-text">${escHtml(item.text)}</div>
<div class="history-meta">
<span class="history-sentiment ${cls}">${item.sentiment}</span>
<span>${formatDate(item.date)}</span>
</div>
</div>
`;
el.onclick = () => {
textarea.value = item.text;
charCount.textContent = item.text.length;
window.scrollTo({ top: 0, behavior: "smooth" });
};
list.appendChild(el);
});
}
function clearHistory() {
history = [];
localStorage.removeItem("sa_history");
renderHistory();
}
function clearAll() {
textarea.value = "";
charCount.textContent = "0";
resultCard.classList.remove("show");
textarea.focus();
}
function escHtml(str) {
return str.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;");
}
renderHistory();
textarea.addEventListener("keydown", e => {
if ((e.ctrlKey || e.metaKey) && e.key === "Enter") analyze();
});
</script>
</body>
</html>