* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

header {
    background-color: #1e3a8a;
    color: #fff;
    padding: 1.5rem 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

header h1 {
    margin-bottom: 1rem;
}

.form-group {
    display: flex;
    gap: 10px;
}

#url-input {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
}

button {
    background-color: #4d7c0f;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #365314;
}

main {
    padding: 2rem 0;
}

#loading {
    text-align: center;
    margin: 3rem 0;
}

.spinner {
    display: inline-block;
    width: 50px;
    height: 50px;
    border: 5px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: #1e3a8a;
    animation: spin 1s ease-in-out infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.hidden {
    display: none;
}

#error-message {
    background-color: #fee2e2;
    color: #b91c1c;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

#info-bar {
    background-color: #e0f2fe;
    padding: 1rem;
    border-radius: 4px 4px 0 0;
    border-bottom: 1px solid #bae6fd;
}

#info-bar p {
    margin: 5px 0;
}

#content-display {
    background-color: white;
    padding: 1.5rem;
    border-radius: 0 0 4px 4px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    min-height: 300px;
    overflow: auto;
}

#content-display iframe {
    width: 100%;
    height: 800px;
    border: none;
}

footer {
    text-align: center;
    padding: 1.5rem 0;
    color: #666;
    font-size: 0.875rem;
}