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

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 30px;
    max-width: 600px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: fadeIn 0.5s ease;
}

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

.header {
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    color: #667eea;
    font-size: 32px;
    margin-bottom: 5px;
}

.header .owner {
    color: #764ba2;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
}

.header p {
    color: #666;
    font-size: 14px;
    margin-top: 10px;
}

.upload-area {
    border: 2px dashed #667eea;
    border-radius: 15px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #f8f9ff;
}

.upload-area:hover {
    border-color: #764ba2;
    background: #f0f2ff;
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.upload-area p {
    color: #666;
    margin: 10px 0;
}

.small {
    font-size: 12px;
    color: #999;
}

.btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 14px;
    cursor: pointer;
    margin-top: 15px;
    transition: transform 0.2s;
}

.btn:hover {
    transform: scale(1.05);
}

.preview {
    margin-top: 20px;
    text-align: center;
}

.preview h3 {
    color: #333;
    margin-bottom: 10px;
}

.preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.result {
    margin-top: 20px;
    padding: 20px;
    background: #f0f9ff;
    border-radius: 15px;
    animation: slideUp 0.3s ease;
}

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

.result h3 {
    color: #27ae60;
    margin-bottom: 15px;
    text-align: center;
}

.url-box {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.url-box input {
    flex: 1;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 12px;
    background: white;
    font-family: monospace;
}

.btn-copy {
    background: #27ae60;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s;
}

.btn-copy:hover {
    transform: scale(1.02);
}

.action-buttons {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.action-buttons .btn {
    flex: 1;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    margin-top: 0;
}

.qr-btn {
    background: #764ba2;
}

.note {
    font-size: 12px;
    color: #666;
    margin-top: 15px;
    text-align: center;
}

.loading {
    text-align: center;
    padding: 30px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    font-size: 12px;
    color: #999;
}

.footer a {
    color: #667eea;
    text-decoration: none;
}

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }

    .upload-area {
        padding: 25px;
    }

    .url-box {
        flex-direction: column;
    }
}