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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: #333;
    transition: background 1s ease;
}

.container {
    text-align: center;
    max-width: 600px;
    background: rgba(255, 255, 255, 0.9);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    animation: fadeIn 1s ease;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #d83f87;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
    letter-spacing: 1px;
}

.qr-image {
    width: 100%;
    max-width: 300px;
    height: auto;
    border: 4px solid #ff6b6b;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin: 20px auto;
    transition: transform 0.3s ease;
}

.qr-image:hover {
    transform: scale(1.05);
}

.upload-btn {
    background: linear-gradient(45deg, #ff6b6b, #ff9a9e);
    color: white;
    border: none;
    padding: 12px 25px;
    font-size: 1.1rem;
    border-radius: 30px;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(255, 107, 107, 0.4);
    transition: all 0.3s ease;
    margin-top: 20px;
}

.upload-btn:hover {
    background: linear-gradient(45deg, #ff9a9e, #fad0c4);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(255, 107, 107, 0.6);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }
    h1 {
        font-size: 2rem;
    }
}