body {
    background-color: #0a0a0a;
    background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size: 30px 30px;
    color: #e0e0e0;
    font-family: 'Segoe UI', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}
.container {
    background: rgba(20, 20, 20, 0.9);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    width: 90%;
    max-width: 450px;
}
input, select, textarea {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    background: #1a1a1a;
    border: 1px solid #333;
    color: white;
    border-radius: 8px;
    box-sizing: border-box;
}
button {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    margin-top: 10px;
}
button:hover { filter: brightness(1.2); }
img { border-radius: 12px; background: white; padding: 10px; width: 100%; }