Webleb - Snippet di Codice - Calcolatrice scientifica

HTML

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Scientific Calculator</title>
    
    <script src="https://cdn.tailwindcss.com"></script>
    
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <div class="calculator-container">
        <div id="display" class="display">0</div>
        <div class="buttons-grid">
            
            <button class="button function" data-value="sin(">sin</button>
            <button class="button function" data-value="cos(">cos</button>
            <button class="button function" data-value="tan(">tan</button>
            <button class="button function" data-value="log(">log</button>
            <button class="button function" data-value="ln(">ln</button>

<button class="button clear" data-value="AC">AC</button>
            <button class="button operator" data-value="DEL">DEL</button>
            <button class="button operator" data-value="%">%</button>
            <button class="button operator" data-value="/">/</button>
            <button class="button function" data-value="Math.PI">π</button>

<button class="button" data-value="7">7</button>
            <button class="button" data-value="8">8</button>
            <button class="button" data-value="9">9</button>
            <button class="button operator" data-value="*">*</button>
            <button class="button function" data-value="Math.E">e</button>

<button class="button" data-value="4">4</button>
            <button class="button" data-value="5">5</button>
            <button class="button" data-value="6">6</button>
            <button class="button operator" data-value="-">-</button>
            <button class="button function" data-value="sqrt(">√</button>

<button class="button" data-value="1">1</button>
            <button class="button" data-value="2">2</button>
            <button class="button" data-value="3">3</button>
            <button class="button operator" data-value="+">+</button>
            <button class="button function" data-value="^">x<sup>y</sup></button>

<button class="button" data-value="0">0</button>
            <button class="button" data-value=".">.</button>
            <button class="button operator" data-value="(">(</button>
            <button class="button operator" data-value=")">)</button>
            <button class="button equals" data-value="=">=</button>
        </div>

<div class="llm-input-container">
            <input type="text" id="conceptInput" placeholder="Enter math concept (e.g., 'Pythagorean theorem')">
            <button class="llm-button" id="explainConceptButton">✨ Explain Concept</button>
        </div>
    </div>

<div id="explanationModal" class="modal-overlay">
        <div class="modal-content">
            <div class="modal-header">
                <h3 id="modalTitle">Mathematical Concept Explanation</h3>
                <button class="modal-close-button" id="closeModalButton">×</button>
            </div>
            <div class="loading-spinner" id="spinner"></div>
            <div class="modal-body" id="explanationText">
                
            </div>
        </div>
    </div>

<script src="script.js"></script>
</body>
</html>

CSS

/* Custom styles for the calculator */
body {
    font-family: 'Inter', sans-serif; /* Using Inter font */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f2f5; /* Light gray background */
    padding: 20px;
}

.calculator-container {
    background-color: #ffffff;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 25px;
    width: 100%;
    max-width: 400px; /* Max width for desktop */
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.display {
    background-color: #2d3748; /* Darker background for display */
    color: #ffffff;
    font-size: 2.5rem;
    padding: 20px;
    border-radius: 15px;
    text-align: right;
    min-height: 80px;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    word-wrap: break-word;
    overflow-x: auto; /* Allow horizontal scrolling for long results */
    white-space: nowrap; /* Prevent wrapping */
    -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
    scrollbar-width: none; /* Hide scrollbar for Firefox */
    -ms-overflow-style: none;  /* Hide scrollbar for IE and Edge */
}

/* Hide scrollbar for Chrome, Safari and Opera */
.display::-webkit-scrollbar {
    display: none;
}

.buttons-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr); /* 5 columns for scientific functions */
    gap: 10px;
}

.button {
    background-color: #e2e8f0; /* Light gray for buttons */
    color: #2d3748; /* Dark text for buttons */
    font-size: 1.3rem;
    padding: 15px;
    border-radius: 12px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s, box-shadow 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
    user-select: none; /* Prevent text selection */
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.button:hover {
    background-color: #cbd5e0; /* Slightly darker on hover */
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

.button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Specific button styles */
.button.operator {
    background-color: #4299e1; /* Blue for operators */
    color: #ffffff;
}

.button.operator:hover {
    background-color: #3182ce;
}

.button.equals {
    background-color: #38a169; /* Green for equals */
    color: #ffffff;
    grid-column: span 2; /* Make equals button span 2 columns */
}

.button.equals:hover {
    background-color: #2f855a;
}

.button.clear {
    background-color: #e53e3e; /* Red for clear */
    color: #ffffff;
}

.button.clear:hover {
    background-color: #c53030;
}

.button.function {
    background-color: #a0aec0; /* Gray for functions */
    color: #ffffff;
    font-size: 1rem; /* Smaller font for function names */
}

.button.function:hover {
    background-color: #718096;
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .calculator-container {
        padding: 15px;
        border-radius: 15px;
        gap: 10px;
    }
    .display {
        font-size: 2rem;
        padding: 15px;
        min-height: 70px;
    }
    .buttons-grid {
        gap: 8px;
    }
    .button {
        font-size: 1.1rem;
        padding: 12px;
        border-radius: 10px;
    }
    .button.function {
        font-size: 0.9rem;
    }
}

/* Styles for the LLM Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 90%;
    max-width: 500px;
    transform: translateY(-20px);
    transition: transform 0.3s ease-in-out;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.modal-overlay.show .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 10px;
    margin-bottom: 10px;
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: bold;
    color: #2d3748;
}

.modal-close-button {
    background: none;
    border: none;
    font-size: 1.8rem;
    color: #718096;
    cursor: pointer;
    transition: color 0.2s;
}

.modal-close-button:hover {
    color: #4a5568;
}

.modal-body {
    max-height: 300px;
    overflow-y: auto;
    color: #4a5568;
    line-height: 1.6;
}

.modal-body p {
    margin-bottom: 10px;
}

.loading-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #4299e1;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
    display: none; /* Hidden by default */
}

.loading-spinner.show {
    display: block;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.llm-input-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 15px;
}

.llm-input-container input {
    padding: 12px;
    border: 1px solid #cbd5e0;
    border-radius: 8px;
    font-size: 1rem;
    color: #2d3748;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.llm-input-container input:focus {
    border-color: #4299e1;
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.3);
}

.llm-button {
    background-color: #9f7aea; /* Purple for LLM button */
    color: #ffffff;
    font-size: 1.1rem;
    padding: 12px 20px;
    border-radius: 12px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s, box-shadow 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
    user-select: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.llm-button:hover {
    background-color: #805ad5;
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

.llm-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Style for active key press feedback */
.button.active-key-press {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    background-color: #d1d5db; /* A slightly darker shade for active state */
}
.button.active-key-press.operator { background-color: #3182ce; }
.button.active-key-press.equals { background-color: #2f855a; }
.button.active-key-press.clear { background-color: #c53030; }
.button.active-key-press.function { background-color: #718096; }

JS