/* Import Google Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap');

html {
    box-sizing: border-box;
    width: 100%;
    overflow-x: hidden;
}

*, *::before, *::after {
    box-sizing: inherit;
}

body {
    background-color: #f5f7fa;
    margin: 0;
    font-family: 'Inter', Arial, sans-serif;
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 20px;
    transition: background-color 0.3s ease, color 0.3s ease;
    width: 100%;
}

body.dark-mode {
    background-color: #121212;
    color: #f5f5f5;
}

.container {
    width: 100%;
    max-width: 600px;
    text-align: center;
    padding: 20px;
}

form, .email-output {
    padding: 25px;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    margin-top: 20px;
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

body.dark-mode form,
body.dark-mode .email-output {
    background-color: #1e1e1e;
    color: #f5f5f5;
}

label {
    font-weight: bold;
    display: block;
    margin-bottom: 8px;
}

textarea, select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    resize: vertical;
    margin-bottom: 15px;
}

button {
    background-color: #3498db;
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease, transform 0.3s ease;
    width: 100%;
}

button:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

button + button {
    margin-top: 10px;
}

#copyBtn {
    background-color: #2ecc71;
}

#copyBtn:hover {
    background-color: #27ae60;
}

.back-link {
    display: inline-block;
    margin-top: 15px;
    color: #3498db;
    text-decoration: none;
}

.back-link:hover {
    text-decoration: underline;
}

#toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #2ecc71;
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transition: opacity 0.3s ease, visibility 0.3s ease;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    z-index: 9999;
}

#toast.show {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 600px) {
    .container {
        padding: 10px;
    }

    form, .email-output {
        padding: 15px;
    }

    button {
        padding: 10px;
    }
}

.email-output button {
    margin-top: 10px;
}

.email-output pre {
    white-space: pre-wrap;
    word-wrap: break-word;
}