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

body {
    font-family: Inter, system-ui, sans-serif;
    background: linear-gradient(135deg, #eef2ff, #f8fafc);
    min-height: 100vh;
    color: #1e293b;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 50px;
    background: rgba(255,255,255,0.6);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.brand {
    font-weight: 700;
    font-size: 20px;
}

.navbar a {
    margin-left: 20px;
    text-decoration: none;
    color: #475569;
}

.container {
    max-width: 800px;
    margin: 80px auto;
    padding: 40px;
    background: rgba(255,255,255,0.8);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

textarea {
    width: 100%;
    padding: 15px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    background: #f8fafc;
    margin-bottom: 20px;
    min-height: 150px;
}

button {
    padding: 12px 20px;
    border-radius: 12px;
    border: none;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    color: white;
    font-weight: 600;
    cursor: pointer;
}

button:hover {
    opacity: 0.9;
}

#output {
    margin-top: 20px;
    padding: 20px;
    border-radius: 12px;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    white-space: pre-wrap;
}