body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0f172a;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

.container {
    background: #1e293b;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    width: 90%;
    max-width: 500px;
    text-align: center;
}

.input-group {
    margin: 20px 0;
}

input {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: none;
    margin-bottom: 10px;
    box-sizing: border-box;
}

button {
    background: #3b82f6;
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    width: 100%;
}

button:hover { background: #2563eb; }

.result-area {
    margin-top: 20px;
    min-height: 200px;
    border: 2px dashed #475569;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
}

img {
    max-width: 100%;
    border-radius: 8px;
}

.hidden { display: none; }