body {
    background-color: #f4f7f9;
    color: #333;
    font-family: "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#app {
    width: 90%;
    max-width: 800px;
    background: white;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #ddd;
}

header {
    background: #1a2a3a;
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo span { font-weight: 300; font-size: 0.8em; opacity: 0.7; }

main { padding: 40px; min-height: 300px; }

h1 { font-size: 1.5rem; margin-bottom: 20px; color: #1a2a3a; }

.search-box {
    display: flex;
    gap: 10px;
}

input[type="text"] {
    flex: 1;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
}

button {
    padding: 10px 25px;
    background: #1a2a3a;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
}

button:hover { background: #34495e; }

.hidden { display: none; }

#result-area {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.warning { color: #e74c3c; font-weight: bold; }