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

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

.container {
    width: 100%;
    max-width: 500px;
}

.card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
}

h1 {
    color: #333;
    margin-bottom: 12px;
    font-size: 28px;
    font-weight: 600;
}

.description {
    color: #666;
    margin-bottom: 30px;
    font-size: 16px;
    line-height: 1.5;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    font-size: 18px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    position: relative;
    min-height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.result {
    margin-top: 30px;
    padding: 20px;
    border-radius: 8px;
    text-align: left;
}

.result.success {
    background: #f0f9ff;
    border: 2px solid #0ea5e9;
}

.result.error {
    background: #fef2f2;
    border: 2px solid #ef4444;
}

.result h3 {
    margin-bottom: 12px;
    color: #333;
    font-size: 18px;
}

.result p {
    margin-bottom: 8px;
    color: #666;
    font-size: 14px;
    word-break: break-all;
}

.result a {
    color: #0ea5e9;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    margin-top: 8px;
    padding: 8px 16px;
    background: white;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.result a:hover {
    background: #e0f2fe;
    transform: translateY(-1px);
}