body, h1, form, input, textarea, button {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    box-sizing: border-box;
}

body {
    background-color: #f9f9f9;
    color: #333;
    padding: 2rem;
    line-height: 1.5;
}

h1 {
    margin-bottom: 1rem;
    color: #222;
    font-size: 1.8rem;
    text-align: center;
}

form {
    max-width: 500px;
    margin: 0 auto 2rem auto;
    padding: 1.5rem;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 6px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

input[type="text"],
textarea {
    width: 100%;
    padding: 0.6rem;
    margin-bottom: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
}

textarea {
    min-height: 100px;
    resize: vertical;
}

button {
    background-color: #0078d7;
    color: white;
    border: none;
    padding: 0.7rem 1.2rem;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s ease;
}

button:hover {
    background-color: #005fa3;
}

#feedback,
#result {
    max-width: 500px;
    margin: 1rem auto;
    padding: 1rem;
    background: #eef6ff;
    border: 1px solid #cce0ff;
    border-radius: 4px;
    font-size: 0.95rem;

    /* preserve JSON formatting */
    white-space: pre-wrap;
}

/* Formatted display styles */
.definition-display {
    max-width: 500px;
    margin: 1rem auto;
    padding: 1.5rem;
    background: #fff;
    border: 2px solid #0078d7;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 120, 215, 0.1);
}

.definition-word {
    font-size: 1.5rem;
    font-weight: bold;
    color: #0078d7;
    margin-bottom: 0.5rem;
}

.definition-text {
    font-size: 1rem;
    color: #333;
    line-height: 1.6;
}

.error-display {
    max-width: 500px;
    margin: 1rem auto;
    padding: 1rem;
    background: #f8d7da;
    border: 2px solid #dc3545;
    border-radius: 8px;
    color: #721c24;
}

.success-display {
    max-width: 500px;
    margin: 1rem auto;
    padding: 1rem;
    background: #d4edda;
    border: 2px solid #28a745;
    border-radius: 8px;
    color: #155724;
}

/* Navigation styles */
.navigation {
    max-width: 600px;
    margin: 0 auto 2rem auto;
    text-align: center;
    padding: 1rem;
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.nav-link {
    display: inline-block;
    padding: 0.5rem 1rem;
    margin: 0 0.5rem;
    background-color: #6c757d;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: background 0.2s ease;
}

.nav-link:hover {
    background-color: #5a6268;
}

.nav-link.current {
    background-color: #0078d7;
}

.nav-link.current:hover {
    background-color: #005fa3;
}

/* Index page styles */
.welcome-container {
    max-width: 600px;
    margin: 50px auto;
    padding: 20px;
    text-align: center;
}

.main-button {
    display: inline-block;
    padding: 15px 30px;
    margin: 10px;
    background-color: #0078d7;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-size: 18px;
    transition: background 0.2s ease;
}

.main-button:hover {
    background-color: #005fa3;
}

.welcome-container h1 {
    color: #333;
    margin-bottom: 1rem;
}

.welcome-container p {
    color: #666;
    font-size: 16px;
    margin-bottom: 1rem;
}

.api-link {
    margin-top: 40px;
    color: #999;
    font-size: 14px;
}

.api-link a {
    color: #0078d7;
    text-decoration: none;
}

.api-link a:hover {
    text-decoration: underline;
}