/* styles.css */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --background-color: #f8f9fa;
    --card-background: #ffffff;
    --text-color: #343a40;
    --border-color: #dee2e6;
    --success-color: #28a745;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

.container {
    background-color: var(--card-background);
    padding: 30px 40px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 500px;
    text-align: center;
}

h1 {
    color: var(--primary-color);
    margin-bottom: 25px;
    font-weight: 700;
}

.password-display-container {
    display: flex;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

#passwordOutput {
    flex-grow: 1;
    padding: 15px;
    font-size: 1.2em;
    border: none;
    outline: none;
    background-color: #e9ecef;
    cursor: text;
    word-break: break-all;
}

.copy-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 15px 20px;
    cursor: pointer;
    font-size: 1em;
    transition: background-color 0.2s;
}

.copy-btn:hover {
    background-color: #0056b3;
}

.controls {
    text-align: left;
}

.control-group {
    margin-bottom: 15px;
}

.control-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

#length {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    box-sizing: border-box;
    font-size: 1em;
}

.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-group label {
    margin-bottom: 0;
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 400;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 10px;
    transform: scale(1.2);
    accent-color: var(--primary-color);
}

.generate-btn {
    width: 100%;
    padding: 15px;
    background-color: var(--success-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    cursor: pointer;
    margin-top: 20px;
    transition: background-color 0.2s, transform 0.1s;
    font-weight: 700;
}

.generate-btn:hover {
    background-color: #1e7e34;
}

.generate-btn:active {
    transform: scale(0.99);
}

.message {
    margin-top: 15px;
    padding: 10px;
    border-radius: 5px;
    min-height: 20px;
    font-size: 0.9em;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}