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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, 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: #ffffff;
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.icon-success {
    width: 80px;
    height: 80px;
    background: #4caf50;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.icon-success svg {
    width: 40px;
    height: 40px;
    color: #ffffff;
}

h1 {
    color: #333;
    font-size: 32px;
    margin-bottom: 8px;
}

h2 {
    color: #4caf50;
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 24px;
}

.message {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 24px;
}

.details {
    background: #f5f5f5;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 32px;
}

.details p {
    color: #333;
    font-size: 14px;
}

.btn {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    text-decoration: none;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}