.cad-game-auth-overlay {
    position: fixed;
    inset: 0;
    z-index: 2147483647;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    box-sizing: border-box;
    overflow: auto;
    background: rgba(0, 0, 0, .75);
}
.cad-game-auth-dialog {
    width: 100%;
    max-width: 460px;
    max-height: calc(100vh - 32px);
    box-sizing: border-box;
    overflow: auto;
    padding: 24px;
    color: #e8eef7;
    background: #151e2b;
    border: 1px solid #536782;
    border-radius: 10px;
    font: 16px/1.5 Arial, sans-serif;
}
.cad-game-auth-dialog h2 { margin: 0 0 12px; font-size: 22px; color: inherit; }
.cad-game-auth-dialog p { margin: 12px 0; color: inherit; }
.cad-game-auth-code { display: block; font: bold 30px/1.4 monospace; letter-spacing: 3px; }
.cad-game-auth-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.cad-game-auth-actions button {
    padding: 10px 16px;
    color: #fff;
    background: #344a68;
    border: 1px solid #718aa9;
    border-radius: 5px;
    font: inherit;
    cursor: pointer;
}
.cad-game-auth-actions button:focus-visible { outline: 3px solid #b1d6ff; outline-offset: 2px; }
.cad-game-auth-actions button:disabled { opacity: .6; cursor: wait; }
.cad-game-auth-dialog [hidden] { display: none !important; }