<!DOCTYPE html>
<html lang="it">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Calcolatore di Portata</title>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
font-family: 'Arial', sans-serif;
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
min-height: 100vh;
display: flex;
align-items: center;
justify-content: center;
padding: 20px;
}
.container {
background: rgba(255, 255, 255, 0.95);
backdrop-filter: blur(10px);
border-radius: 20px;
box-shadow: 0 25px 45px rgba(0, 0, 0, 0.1);
padding: 40px;
max-width: 500px;
width: 100%;
transform: translateY(0);
transition: transform 0.3s ease;
}
.container:hover {
transform: translateY(-5px);
}
h1 {
text-align: center;
color: #333;
margin-bottom: 30px;
font-size: 2.2em;
font-weight: 300;
text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.input-group {
margin-bottom: 25px;
position: relative;
}
label {
display: block;
margin-bottom: 8px;
color: #555;
font-weight: 600;
font-size: 1.1em;
}
input {
width: 100%;
padding: 15px 20px;
border: 2px solid #e0e0e0;
border-radius: 12px;
font-size: 1.1em;
transition: all 0.3s ease;
background: rgba(255, 255, 255, 0.8);
}
input:focus {
outline: none;
border-color: #667eea;
box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
transform: scale(1.02);
}
.time-inputs {
display: flex;
gap: 15px;
}
.time-inputs .input-group {
flex: 1;
margin-bottom: 0;
}
.calculate-btn {
width: 100%;
padding: 18px;
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
color: white;
border: none;
border-radius: 12px;
font-size: 1.3em;
font-weight: 600;
cursor: pointer;
transition: all 0.3s ease;
margin-top: 20px;
text-transform: uppercase;
letter-spacing: 1px;
}
.calculate-btn:hover {
transform: translateY(-2px);
box-shadow: 0 15px 30px rgba(102, 126, 234, 0.4);
}
.calculate-btn:active {
transform: translateY(0);
}
.result {
margin-top: 30px;
padding: 25px;
background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
border-radius: 12px;
text-align: center;
color: white;
font-size: 1.4em;
font-weight: 600;
box-shadow: 0 10px 25px rgba(17, 153, 142, 0.3);
transform: scale(0.95);
opacity: 0;
transition: all 0.3s ease;
}
.result.show {
transform: scale(1);
opacity: 1;
}
.formula {
margin-top: 20px;
padding: 20px;
background: rgba(0, 0, 0, 0.05);
border-radius: 12px;
text-align: center;
color: #666;
font-style: italic;
border-left: 4px solid #667eea;
}
.error {
background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
color: white;
}
@media (max-width: 600px) {
.container {
padding: 25px;
margin: 10px;
}
h1 {
font-size: 1.8em;
}
.time-inputs {
flex-direction: column;
gap: 10px;
}
}
</style>
</head>
<body>
<div class="container">
<h1>📊 Calcolatore di Portata</h1>
<div class="input-group">
<label for="p1">Valore P1:</label>
<input type="number" id="p1" step="any" placeholder="Inserisci P1">
</div>
<div class="input-group">
<label for="p2">Valore P2:</label>
<input type="number" id="p2" step="any" placeholder="Inserisci P2">
</div>
<div class="input-group">
<label for="litri">Litri:</label>
<input type="number" id="litri" step="any" placeholder="Inserisci litri">
</div>
<div class="input-group">
<label>Tempo:</label>
<div class="time-inputs">
<div class="input-group">
<label for="minuti">Minuti:</label>
<input type="number" id="minuti" min="0" placeholder="0">
</div>
<div class="input-group">
<label for="secondi">Secondi:</label>
<input type="number" id="secondi" min="0" max="59" placeholder="0">
</div>
</div>
</div>
<button class="calculate-btn" onclick="calcolaPortata()">
⚡ Calcola Portata
</button>
<div class="formula">
<strong>Formula:</strong> Portata = (Litri × (P2 - P1)) / Tempo × 60
</div>
<div id="result" class="result"></div>
</div>
<script>
function calcolaPortata() {
// Ottieni i valori dai campi input
const p1 = parseFloat(document.getElementById('p1').value);
const p2 = parseFloat(document.getElementById('p2').value);
const litri = parseFloat(document.getElementById('litri').value);
const minuti = parseInt(document.getElementById('minuti').value) || 0;
const secondi = parseInt(document.getElementById('secondi').value) || 0;
const resultDiv = document.getElementById('result');
// Validazione input
if (isNaN(p1) || isNaN(p2) || isNaN(litri)) {
resultDiv.innerHTML = '❌ Inserisci tutti i valori numerici richiesti!';
resultDiv.className = 'result error show';
return;
}
// Calcola il tempo totale in secondi
const tempoTotaleSecondi = (minuti * 60) + secondi;
if (tempoTotaleSecondi <= 0) {
resultDiv.innerHTML = '❌ Il tempo deve essere maggiore di zero!';
resultDiv.className = 'result error show';
return;
}
// Calcola la portata: (litri × (p2-p1)) / tempo * 60
const portata = (litri * (p2 - p1)) / tempoTotaleSecondi * 60;
// Mostra il risultato
resultDiv.innerHTML = `
<div style="margin-bottom: 15px;">
<strong>🎯 Portata Calcolata:</strong>
</div>
<div style="font-size: 1.6em; margin-bottom: 10px;">
${portata.toFixed(4)} litri/minuto
</div>
<div style="font-size: 0.9em; opacity: 0.8;">
Calcolo: (${litri} × (${p2} - ${p1})) / ${tempoTotaleSecondi}s × 60
</div>
`;
resultDiv.className = 'result show';
}
// Aggiungi event listener per il tasto Enter
document.addEventListener('keypress', function(e) {
if (e.key === 'Enter') {
calcolaPortata();
}
});
// Aggiungi animazioni sui campi input
document.querySelectorAll('input').forEach(input => {
input.addEventListener('input', function() {
if (this.value) {
this.style.borderColor = '#38ef7d';
} else {
this.style.borderColor = '#e0e0e0';
}
});
});
</script>
</body>
</html>
