body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background-color: #0f0f0f;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.card {
    background-color: #1a1a1a;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

h1 { margin-bottom: 24px; font-size: 24px; font-weight: 600; }

label { display: block; text-align: left; margin-bottom: 8px; color: #aaa; font-size: 14px; }

input {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    background-color: #2a2a2a;
    border: 1px solid #333;
    border-radius: 6px;
    color: white;
    box-sizing: border-box;
    outline: none;
}

input:focus { border-color: #007bff; }

button {
    width: 100%;
    padding: 12px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s;
}

button:hover { background-color: #0056b3; }

.file-list { margin-top: 20px; text-align: left; }
.file-item {
    background: #2a2a2a;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-danger { background-color: #dc3545; width: auto; padding: 5px 10px; font-size: 12px; }