* { box-sizing: border-box; } body { margin: 0; padding: 0; font-family: 'Open Sans', sans-serif; background-color: #fff8f6; } .center-wrapper { display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 40px 20px; } .thank-you-box { background-color: #ffffff; padding: 40px 30px; border-radius: 16px; box-shadow: 0 0 30px rgba(0, 0, 0, 0.05); max-width: 600px; width: 100%; text-align: center; } .thank-you-box h1 { color: #d1664e; font-size: 28px; margin-bottom: 20px; } .thank-you-box p { font-size: 16px; color: #4a4a4a; line-height: 1.6; margin-bottom: 30px; } .thank-you-box a { display: inline-block; background-color: #d1664e; color: #ffffff; text-decoration: none; padding: 12px 24px; border-radius: 8px; font-weight: bold; font-size: 16px; transition: background-color 0.3s ease; } .thank-you-box a:hover { background-color: #b44f3c; } @media (max-width: 480px) { .thank-you-box h1 { font-size: 24px; } .thank-you-box p { font-size: 15px; } .thank-you-box a { padding: 10px 20px; font-size: 14px; } }