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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #8BC6EC 0%, #9599E2 100%);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #333;
}

.auth {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    width: 90%;
    max-width: 400px;
    padding: 40px 20px;
    border-radius: 20px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.auth a {
    display: block;
    width: 80%;
    font-size: 16px;
    font-weight: 600;
    line-height: 44px;
    text-decoration: none;
    border: none;
    border-radius: 25px;
    margin: 15px 0;
    color: #fff;
    background-color: #4A90E2;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.auth a:hover {
    background-color: #357ABD;
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}